JP7139766B2 - TERMINAL DEVICE, OPERATING METHOD AND PROGRAM FOR TERMINAL DEVICE - Google Patents

Description

The present invention relates to technology for providing various contents.

Techniques for reproducing teaching material content using a user's terminal device have been proposed in the past. For example, Patent Literature 1 discloses a configuration in which character data corresponding to language learning materials reproduced by an audio reproduction device is reproduced by a character data reproduction device owned by a user. Specifically, text data is superimposed on the foreign language voice data contained in the language learning material by means of an acoustic watermark, and the text data is reproduced by a text data reproducing device that picks up the voice represented by the foreign language voice data.

Japanese Patent Application Laid-Open No. 2008-299032

However, with the technique of Patent Document 1, it is necessary to superimpose an acoustic watermark on the foreign language audio data each time the content of the language teaching material or the content of the character data is changed, which is time-consuming. In addition, there is an upper limit to the amount of character data that can be superimposed on foreign language audio data, and there is also the problem that various contents cannot be provided to users. In consideration of the above circumstances, it is an object of the present invention to provide users with a variety of second educational content corresponding to the first educational content with a simple configuration.

In order to solve the above problems, a terminal device according to a preferred aspect of the present invention provides sound supplied in parallel with reproduction of a first teaching material content containing a plurality of sound components respectively representing a plurality of different identification codes. an identification extraction unit for extracting the identification code from a signal; and a reproduction control unit for causing a reproduction device to reproduce the second teaching material content corresponding to the identification code extracted by the identification extraction unit among a plurality of second teaching material contents. do.
A method of operating a terminal device according to a preferred aspect of the present invention extracts an identification code from an acoustic signal supplied in parallel with reproduction of a first teaching material content containing a plurality of acoustic components respectively representing a plurality of different identification codes. The reproducing device reproduces the second teaching material content corresponding to the identification code extracted by the identification extraction unit among the plurality of second teaching material contents.
A program for a terminal device according to a preferred aspect of the present invention extracts an identification code from an acoustic signal supplied in parallel with reproduction of a first teaching material content containing a plurality of acoustic components each representing a plurality of different identification codes. The computer functions as an identification extractor and a reproduction control unit that causes a reproduction device to reproduce the second teaching material content corresponding to the identification code extracted by the identification extraction unit among the plurality of second teaching material contents.

1 is a schematic diagram illustrating the overall configuration of a learning system according to a first embodiment; FIG. FIG. 2 is a schematic diagram of a first teaching material content and a second teaching material content; It is a block diagram which illustrates the structure of a terminal device. 4 is a flowchart illustrating processing executed by a terminal device; FIG. 10 is a schematic diagram of first educational content and second educational content according to the second embodiment; FIG. 11 is a schematic diagram of a reference table according to the second embodiment; FIG. FIG. 11 is a block diagram illustrating the configuration of a terminal device according to a third embodiment; FIG.

<First Embodiment>
FIG. 1 is a schematic diagram illustrating the overall configuration of a learning system 100 according to the first embodiment. A learning system 100 in FIG. 1 is a computer system used for learning by a user U, and includes a terminal device 10 and a playback device 20 . The playback device 20 is a playback device that plays back the first teaching material content Ca, and includes a sound emitting device (for example, a speaker) that emits sound and a display device (for example, a liquid crystal display) that displays images. The terminal device 10 is an information terminal that reproduces learning content Cb corresponding to the first teaching material content Ca reproduced by the reproduction device 20 . For example, information terminals such as mobile phones and smart phones are suitable as the terminal device 10 .

The first teaching material content Ca is a teaching material used by the user U for learning. As exemplified in FIG. 1, the first teaching material content Ca is, for example, a content recording a lecture by a lecturer, and includes images and sounds. On the other hand, the learning content Cb is content used for learning the first teaching material content Ca. For example, texts (so-called electronic teaching materials) such as textbooks and reference books used in the lectures of the first teaching material content Ca are exemplified as the learning content Cb. Also, test questions related to the lecture represented by the first teaching material content Ca may be used as the learning content Cb.

FIG. 2 is a schematic diagram of the first educational content Ca and the learning content Cb. As illustrated in FIG. 2, the learning content Cb is composed of a plurality of different second teaching material content Ce (Ce1, Ce2, Ce3, . . . ). Each second educational content Ce of the first embodiment is a content corresponding to a part of the first educational content Ca. A single piece of second teaching material content Ce corresponds to each of a plurality of unit sections T (T1, T2, T3, . . . ) of a predetermined length in first teaching material content Ca. Each of the plurality of unit sections T in the first teaching material content Ca has the same length of time, and is continuously reproduced in sequence.

As exemplified in FIG. 1, the second educational content Ce is content related to the content of the first educational content Ca, and includes images. For example, an image representing an explanation or a question regarding the first teaching material content Ca is suitable as the second teaching material content Ce. In parallel with the reproduction of the first teaching material content Ca by the reproduction device 20 , the learning content Cb is reproduced by the terminal device 10 . Specifically, the terminal device 10 reproduces the second educational content Ce corresponding to the unit section T in which the first educational content Ca is being reproduced, among the plurality of second educational content Ce of the learning content Cb.

The sound of the first teaching material content Ca includes the sound component Z representing the identification code D in addition to the sound related to the lecture. The identification code D is information for identifying the second teaching material content Ce. As illustrated in FIG. 2, a plurality of acoustic components Z (Z1, Z2, Z3, . . . ) representing a plurality of different identification codes D (D1, D2, D3, . include. Specifically, the sound component Z of the identification code D of the second teaching material content Ce corresponding to each unit section T is included in the unit section T. That is, a plurality of acoustic components Z are included in a plurality of unit intervals T, respectively.

The first teaching material content Ca is composed of an image signal and an audio signal. The image signal of the first teaching material content Ca is generated by capturing an image of the lecture with an imaging device. The acoustic signal of the first teaching material content Ca is obtained by adding a collected sound signal generated by collecting a sound related to the lecture (for example, the lecturer's speech) with a recording device and a modulated signal representing the identification code D as an acoustic component. is generated by That is, the identification code D of the second educational content Ce corresponding to the unit interval T of the first educational content Ca is added to the collected sound signal of the unit interval T. Note that the common identification code D may be repeatedly added over the entire unit section T, or the identification code D may be added only once within one unit section T. FIG.

The modulated signal is generated by frequency-modulating a carrier wave of a predetermined frequency with an identification code D, for example. The modulation signal may be generated by sequentially performing spread modulation of the identification code D using a spread code and frequency conversion using a carrier wave of a predetermined frequency. The frequency band of the modulated signal is the frequency band in which sound can be emitted by the reproduction device 20 and collected by the terminal device 10, and the frequency band of the sound that the user U of the learning system 100 listens to in a normal environment. A higher frequency band (for example, 18 kHz or more and 20 kHz or less) is set. Therefore, the user U of the learning system 100 can hardly hear the acoustic component Z of the identification code D.

The display device of the reproduction device 20 in FIG. 1 displays an image corresponding to the image signal of the first teaching material content Ca. That is, an image representing the state of the lecture is displayed. The sound emitting device of the reproducing device 20 emits sound corresponding to the acoustic signal of the first teaching material content Ca. As described above, the sound of the first teaching material content Ca includes the sound related to the lecture and the sound component Z of the identification code D. That is, the sound emitting device functions not only as an acoustic device that reproduces sounds related to the lecture, but also as a transmitter that transmits the identification code D to the surroundings by acoustic communication using sound waves as air vibrations as a transmission medium. As can be understood from the above description, in the first embodiment, the identification code D is transmitted to the surroundings by acoustic communication that emits the acoustic component Z of the identification code D from a sound emitting device that emits sound related to the lecture. be. The identification code D is repetitively transmitted at a predetermined cycle in parallel with the emission of sounds related to the lecture.

FIG. 3 is a block diagram illustrating the configuration of the terminal device 10. As shown in FIG. As illustrated in FIG. 3 , the terminal device 10 includes a control device 11 , a storage device 12 , a sound pickup device 14 and a playback device 15 . The terminal device 10 is typically an information terminal owned by the user U, as described above. However, a stationary information terminal may be used as the terminal device 10 .

The sound pickup device 14 is an acoustic device (microphone) that picks up ambient sounds. Specifically, the sound pickup device 14 picks up the sound reproduced by the reproduction device 20 and generates the sound signal X representing the waveform of the sound. The acoustic signal X contains the acoustic component of the identification code D. FIG. The generation of the acoustic signal X is repeatedly executed in a predetermined cycle (for example, a cycle shorter than the time length of the unit section T) in parallel with the reproduction of the first teaching material content Ca by the reproduction device 20 . As can be understood from the above description, the sound collection device 14 is used for recording voice during voice communication or video recording, and also for receiving the identification code D through acoustic communication using sound waves as air vibrations as a transmission medium. It also functions as a machine. For the sake of convenience, an A/D converter that converts the acoustic signal X generated by the sound collecting device 14 from analog to digital is omitted. Further, instead of the sound collecting device 14 configured integrally with the terminal device 10, a separate sound collecting device 14 may be connected to the terminal device 10 by wire or wirelessly.

The control device 11 (exemplified as a computer) is composed of a processing circuit such as a CPU (Central Processing Unit), and controls each element of the terminal device 10 in an integrated manner. As illustrated in FIG. 1, the control device 11 implements a plurality of functions (identification extraction section 113 and reproduction control section 115) by executing programs stored in the storage device 12. FIG. A part of the functions of the control device 11 may be realized by a dedicated electronic circuit. Also, the functions of the control device 11 may be installed in a plurality of devices.

The storage device 12 stores programs executed by the control device 11 and various data used by the control device 11 . For example, a known recording medium such as a semiconductor recording medium and a magnetic recording medium, or a combination of multiple types of recording media can be arbitrarily adopted as the storage device 12 . The storage device 12 of the first embodiment stores a plurality of different second teaching material contents Ce that constitute the learning contents Cb. Specifically, the storage device 12 stores a reference table Q. FIG. For example, the reference table Q is acquired in advance from a distribution server (not shown) via a communication network such as the Internet. As exemplified in FIG. 1, the reference table Q is a data table in which a plurality of different identification codes D are registered in association with the second teaching material content Ce. One identification code D is associated with each of a plurality of different second teaching material contents Ce that constitute the learning contents Cb. It should be noted that two or more identification codes D may be associated with a common second teaching material content Ce. Further, in the first embodiment, the configuration in which one learning content Cb is stored in the storage device 12 was exemplified. 12 may be stored.

The identification extraction unit 113 extracts the identification code D from the acoustic signal supplied to the identification extraction unit 113 in parallel with the reproduction of the first teaching material content Ca. That is, the identification code D is extracted in parallel with the reproduction of the first teaching material content Ca. The identification extraction unit 113 of the first embodiment extracts the identification code D from the sound signal X generated by the sound collection device 14 by collecting the reproduced sound of the first teaching material content Ca. Extraction of the identification code D is performed each time the sound pickup device 14 generates the acoustic signal X, for example. That is, the identification code D is extracted from the acoustic signal X in sequence. Specifically, the identification extraction unit 113 performs identification by, for example, filtering processing for emphasizing the frequency band containing the acoustic component of the identification code D in the acoustic signal X, and demodulation processing corresponding to the modulation processing for the identification code D. Extract code D. The identification code D extracted by the identification extraction unit 113 is used to specify the second teaching material content Ce corresponding to the identification code D. FIG.

The reproduction control unit 115 causes the reproduction device 15 to reproduce the study content Cb. The reproduction control unit 115 of the first embodiment causes the reproduction device 15 to reproduce the second educational content Ce corresponding to the identification code D extracted by the identification extraction unit 113 among the plurality of second educational content Ce. Specifically, the reproduction control unit 115 reproduces the second teaching material content Ce corresponding to the identification code D extracted by the identification extraction unit 113 from among the plurality of second teaching material content Ce registered in the reference table Q. to play. As described above, since a plurality of different identification codes D are included in the sound of the first teaching material content Ca in chronological order, the second teaching material content Ce corresponding to the identification code D is sequentially reproduced.

The playback device 15 is an output device that plays back the study content Cb under the control of the playback control unit 115 . The playback device 15 of the first embodiment includes a display device that displays images represented by the learning content Cb. As illustrated in FIG. 1, the reproducing device 15 reproduces the second educational content Ce corresponding to the unit section T being reproduced in the first educational content Ca. That is, the plurality of second teaching material contents Ce that constitute the learning contents Cb are reproduced in sequence. As can be understood from the above description, the second educational content Ce is played back sequentially in synchronization with the progress of the first educational content Ca. In other words, the user U of the learning system 100 can view the second educational content Ce corresponding to the portion being played out of the first educational content Ca without being aware of the progress of the first educational content Ca.

FIG. 4 is a flowchart illustrating processing executed by the terminal device 10 . For example, each time the sound pickup device 14 generates the acoustic signal X, the processing in FIG. 4 is repeatedly executed. When the process of FIG. 4 is started, the identification extractor 113 extracts the identification code D from the acoustic signal X (Sa1). The reproduction control unit 115 identifies the second teaching material content Ce corresponding to the identification code D extracted by the identification extraction unit 113 from the reference table Q (Sa2). The reproduction control unit 115 causes the reproduction device 15 to reproduce the identified second teaching material content Ce (Sa3).

For example, in a configuration in which the second teaching material content Ce is added to the sound of the first teaching material content Ca by sound processing such as sound watermarking (hereinafter referred to as "contrast"), each time the contents of the second teaching material content Ce are changed, It is necessary to perform sound processing for superimposing the sound watermark on the first teaching material content Ca, which is time-consuming. In addition, there is an upper limit to the capacity of the second educational content Ce that can be added to the sound of the first educational content Ca, and there is also the problem that a variety of second educational content Ce cannot be provided. On the other hand, in the first embodiment, the first teaching material content Ca includes a plurality of acoustic components Z each representing a plurality of different identification codes D, and among the plurality of second teaching material contents Ce, the first teaching material content Ca The second teaching material content Ce corresponding to the identification code D extracted from the acoustic signal X generated by collecting the reproduced sound is reproduced. That is, according to the configuration of the first embodiment, it is unnecessary to add the second educational content Ce to the sound of the first educational content Ca. Therefore, the limitation on the capacity of the second teaching material content Ce is relaxed compared to the comparison. Further, in the configuration of the first embodiment, for example, when changing the content of the second teaching material content Ce, the second teaching material content Ce corresponding to the identification code D registered in the reference table Q may be changed. That is, no acoustic processing is required for the first teaching material content Ca. As can be understood from the above description, according to the first embodiment, the user U is provided with a variety of second teaching material contents Ce corresponding to the first teaching material contents Ca with a simple configuration as compared with the comparative example. be able to.

<Second embodiment>
A second embodiment of the present invention will be described. It should be noted that, in each of the following illustrations, the reference numerals used in the description of the first embodiment are used for the elements whose functions are the same as those of the first embodiment, and detailed description of each will be omitted as appropriate.

In the second embodiment, it is assumed that the common second teaching material content Ce is reproduced over a plurality of continuous unit intervals T of the first teaching material content Ca. FIG. 5 illustrates a case where the second teaching material content Ce1 is played back from the unit section T1 to the unit section T3 of the first teaching material content Ca.

FIG. 6 is a schematic diagram of the reference table Q according to the second embodiment. As exemplified in FIG. 6, the reference table Q according to the second embodiment has a plurality of unit intervals T1 to T3 in which one piece of second teaching material content Ce is continuously reproduced. The second teaching material content Ce1 is associated with the added identification code D and registered. That is, it is not necessary to associate the second teaching material content Ce1 with the identification codes D of the unit sections T (T2 and T3) after the beginning of the plurality of consecutive unit sections T.

The reproduction device 20 of the second embodiment reproduces the first teaching material content Ca including a plurality of acoustic components Z each representing a different identification code D, as in the first embodiment. As in the first embodiment, the identification extraction unit 113 of the terminal device 10 of the second embodiment extracts the identification code D from the sound signal X generated by the sound collection device 14 by collecting the reproduced sound of the first teaching material content Ca. Extract.

The reproduction control unit 115 of the second embodiment controls reproduction of the second teaching material content Ce according to the presence or absence of the second teaching material content Ce corresponding to the identification code D extracted by the identification extraction unit 113 . Specifically, when the second teaching material content Ce corresponding to the identification code D extracted by the identification extraction unit 113 is in the reference table Q, the playback control unit 115 sends the second teaching material content Ce to the playback device 15. play it. On the other hand, if the second educational content Ce corresponding to the identification code D extracted by the identification extraction unit 113 is not found in the reference table Q, the reproduction control unit 115 causes the reproduction apparatus to reproduce the second educational content Ce that is being reproduced. Maintain at 15. As illustrated in FIG. 6, when the identification code D1 is extracted, the reproduction of the second teaching material content Ce1 is started, and after the identification code D1 is extracted, when the identification code D2 and the identification code D3 are extracted, , the reproduction of the second teaching material content Ce1 being reproduced is maintained. That is, the identification code D2 and the identification code D3 that are not associated with the second teaching material content Ce are ignored even if they are extracted from the acoustic signal X. Then, when the identification code D4 is extracted, the second teaching material content Ce1 is switched to the second teaching material content Ce2 to be reproduced.

The same effects as in the first embodiment are achieved in the second embodiment. In the configuration of the first embodiment, when the common second teaching material content Ce is reproduced over a plurality of continuous unit sections T of the first teaching material content Ca, a plurality of identifiers corresponding to each of the plurality of unit sections T are used. All of the codes D must be associated with the second teaching material content Ce. On the other hand, in the second embodiment, when there is a second teaching material content Ce corresponding to the identification code D extracted by the identification extraction unit 113, the second teaching material content Ce is reproduced, and the identification extraction unit 113 extracts the second teaching material content Ce. If there is no second educational content Ce corresponding to the identified identification code D, the reproduction of the second educational content Ce that is being reproduced is maintained. Therefore, among the plurality of identification codes D, the second teaching material content Ce may be associated with the identification code D at an arbitrary time point (unit section T) at which the second teaching material content Ce to be reproduced is switched. That is, it becomes unnecessary to associate the second teaching material content Ce with all the identification codes D. FIG.

<Third Embodiment>
FIG. 7 is a configuration diagram of the terminal device 10 according to the third embodiment. The terminal device 10 of the third embodiment manages the progress of learning using the first teaching material content Ca. As illustrated in FIG. 7, the control device 11 of the third embodiment also functions as a history generation section 117 in addition to the functions of the identification extraction section 113 and the reproduction control section 115 similar to those of the first embodiment.

The terminal device 10 has received the identification code D up to the time point (unit section T) when the reproduction of the first teaching material content Ca is completed. That is, it can be said that learning up to the part corresponding to the identification code D received by the terminal device 10 in the first teaching material content Ca is completed. Therefore, in the third embodiment, the history of the first teaching material content Ca is managed according to the identification code D extracted by the identification extraction unit 113 of the terminal device 10 .

The identification extraction unit 113 and the reproduction control unit 115 of the third embodiment function similarly to those of the first embodiment. History generation unit 117 generates history data P according to identification code D extracted by identification extraction unit 113 . The history data P is data representing the progress of learning using the first teaching material content Ca. The history data P is preferably data representing the point in time when the reproduction of the first teaching material content Ca is completed. For example, data indicating the ratio of the length of time up to the unit section T from which the identification code D is extracted is used as the history data P in the entirety of the first teaching material content Ca. If the first teaching material content Ca consists of a plurality of chapters, data indicating whether or not the identification code D has been extracted for each chapter may be used as the history data P. Note that the specific contents of the history data P are not limited to the above examples. For example, the history data P may be data representing the number of times the first teaching material content Ca has been played or the date and time of playing the first teaching material content Ca.

The history data P generated by the history generator 117 is transmitted from the communication device 17 to the management server 30 via a communication network such as the Internet. The management server 30 stores the history data P transmitted from the terminal device 10 . Note that the history data P is actually transmitted from a plurality of terminal devices 10 . Therefore, the management server 30 manages the learning progress according to the history data P for each user U of the learning system 100 . The terminal device 10 acquires the history data P from the management server 30 and causes the reproduction device 15 to display an image showing the progress of the first teaching material content Ca according to the history data P. FIG. Note that the terminal device 10 may acquire from the management server 30 various types of information generated using the history data P (for example, the first teaching material content Ca suitable for the user U or information notifying the learning method). .

The third embodiment also achieves the same effect as the first embodiment. Especially in the third embodiment, since the history data P representing the progress of learning using the first teaching material content Ca is generated according to the identification code D, the identification code D used for reproducing the second teaching material content Ce is stored in the history. There is an advantage that it can be diverted to generate data P. Note that the configuration of the third embodiment may be applied to the second embodiment. Also, in the third embodiment, the history data P is stored in the management server 30 , but the history data P may be stored in the storage device 12 of the terminal device 10 .

<Modification>
Specific modified aspects added to the above-exemplified aspects will be exemplified below. A plurality of aspects arbitrarily selected from the following examples may be combined as appropriate within a mutually consistent range.

(1) In each of the above embodiments, the content corresponding to a part of the first teaching material content Ca was illustrated as the second teaching material content Ce, but the second teaching material content Ce corresponding to the entire first teaching material content Ca is also adopted. be. That is, the first educational content Ca and the second educational content Ce may correspond one-to-one. In the above configuration, contents such as textbooks and reference books used in the lectures of the first teaching material content Ca are exemplified as the second teaching material content Ce.

(2) In each of the above-described embodiments, a configuration in which a plurality of sound components Z are included in a plurality of unit sections T of a predetermined length in the first teaching material content Ca is exemplified. The part to be included is arbitrary. For example, a configuration may be adopted in which the identification code D is included at an arbitrary point of time when the second teaching material content Ce to be played is switched among the first teaching material content Ca. In the above configuration, in the stage of creating the first teaching material content Ca, it is necessary to identify the timing of switching the second teaching content Ce while confirming the content of the first teaching content Ca, and include the acoustic component Z at that timing. . On the other hand, according to the configuration in which a plurality of unit sections T of a predetermined length in the first teaching material content Ca include a plurality of sound components Z, the sound components Z are periodically generated regardless of the content of the first teaching material content Ca. Since it is sufficient to include the identification code D, there is an advantage that the creation of the first teaching material content Ca does not take much time and effort compared to the configuration in which the identification code D is included at an arbitrary point of time when the second teaching material content Ce is switched.

(3) In each of the above embodiments, the unit intervals T have the same length of time, but each unit interval T may have a different length of time. For example, the unit sections T may be sections corresponding to a plurality of chapters forming the first teaching material content Ca.

(4) In each of the above embodiments, when the first teaching material content Ca consists of a plurality of chapters, the identification code D may be information identifying the chapter (for example, chapter number). In the above configuration, for example, an identification code D corresponding to each chapter is added to each section corresponding to each chapter constituting the first teaching material content Ca. In the reference table Q stored in the terminal device 10, the second teaching material content Ce corresponding to each of the chapters constituting the first teaching material content Ca is registered for each identification code D that identifies each chapter.

Also, the identification code D may be a time code representing each time point on the time axis in the first teaching material content Ca. In the above configuration, an identification code D representing the point in time is added to the section corresponding to each point in the first teaching material content Ca. In the reference table Q stored in the terminal device 10, for each identification code D representing a plurality of different points in time of the first educational content Ca, the second educational content Ce corresponding to that point in time is registered.

(5) In the third embodiment, the terminal device 10 generates the history data P, but the management server 30 may generate the history data P as well. Specifically, the terminal device 10 transmits the identification code D extracted by the identification extractor 113 to the management server 30 . The management server 30 generates history data P according to the identification code D transmitted from the terminal device 10 .

(6) In each of the above embodiments, the first teaching material content Ca including sound and images was exemplified, but the first teaching material content Ca may be composed only of sound. The acoustic signal of the first teaching material content Ca contains the sound related to the lecture and the acoustic component Z of the identification code D in the same manner as in the above-described forms. Also, it is not essential to include the sound related to the lecture in the audio signal of the first teaching material content Ca. That is, the sound component Z of the identification code D and the image may constitute the first teaching material content Ca. In the above configuration, the first teaching material content Ca is silent, but the identification code D is transmitted to the terminal device 10 by acoustic communication.

(7) In each of the above embodiments, the second teaching material content Ce including images was exemplified, but the second teaching material content Ce is arbitrary as long as it includes either one or both of sound and images.

(8) In each of the above embodiments, the sound signal X generated by the sound collecting device 14 by collecting the reproduced sound of the first teaching material content Ca is used as the sound signal supplied in parallel with the reproduction of the first teaching material content Ca. Although supplied to the identification extraction unit 113, the acoustic signal supplied in parallel with the reproduction of the first teaching material content Ca is not limited to the above examples. For example, in parallel with the reproduction of the first educational content Ca by the reproduction device 20, the acoustic signal of the first educational content Ca may be transmitted from the reproduction device 20 to the terminal device 10 by wire. The acoustic signal transmitted from the playback device 20 is supplied to the identification extraction unit 113 . The identification extractor 113 extracts the identification code D from the supplied acoustic signal. The user U listens to the sound emitted from the reproducing device 20 by reproducing the first teaching material content Ca. That is, the sound signal of the first teaching material content Ca is supplied to the sound emitting device of the reproducing device 20 and the terminal device 10 .

Also, the terminal device 10 may reproduce the acoustic signal transmitted from the reproduction device 20 . For example, the sound represented by the acoustic signal (that is, the sound of the first teaching material content Ca) is emitted from the sound emitting device of the terminal device 10 or an earphone or headphone connected to the terminal device 10 . Then, the acoustic signal transmitted from the playback device 20 is supplied to the identification extraction unit 113 in parallel with the emission of the sound of the first teaching material content Ca. The identification extractor 113 extracts the identification code D from the acoustic signal. That is, a common acoustic signal is used for emitting the sound of the first teaching material content Ca and for extracting the identification code D. FIG. The image of the first teaching material content Ca is played back by the playback device 20 . As understood from the above description, sound collection by the sound collection device 14 is not essential.

(9) In each of the above-described modes, the lecture-related sound among the sounds of the first teaching material content Ca and the sound component Z of the identification code D among the sounds of the first teaching material content Ca may be reproduced in separate systems. For example, among the sounds, the lecture-related sound may be emitted from earphones or headphones connected to the reproducing device 20 , and the acoustic component Z of the identification code D may be emitted from the sound emitting device (speaker) of the reproducing device 20 . Alternatively, an acoustic signal representing the sound related to the lecture may be transmitted from the reproduction device 20 to the terminal device 10, the sound related to the lecture may be reproduced by the terminal device 10, and the acoustic component Z of the identification code D may be reproduced by the reproduction device 20. .

In addition, the acoustic signal representing the acoustic component Z representing the identification code D may be transmitted from the playback device 20 to the terminal device 10 in parallel with the emission of the sound relating to the lecture. The identification extraction unit 113 may extract the identification code D from the acoustic signal in parallel with the sound output of the lecture-related sound (that is, the reproduction of the first teaching material content Ca) by the reproduction device 20 or the terminal device 10 . That is, it is not essential to sound out the sound component Z representing the identification code D.

(10) In the first teaching material content Ca of each form described above, it is arbitrary whether the sound related to the lecture and the acoustic component Z of the identification code D are recorded in a single channel or in separate channels.

(11) In each of the above embodiments, the modulated signal representing the identification code D as the acoustic component is in the inaudible band, but the frequency band of the modulated signal is arbitrary. For example, the modulated signal may be in the audible band. If the modulated signal is in the audible band, for example, the sound containing the sound component Z of the identification code D (for example, the marker sound) may be generated in a section (for example, the beginning of each chapter) of the first teaching material content Ca in which there is no lecture-related sound. part).

(12) Although the reference table Q is stored in the terminal device 10 in each of the above embodiments, the reference table Q may be stored in a distribution server that can communicate with the terminal device 10 via a communication network. With the above configuration, the terminal device 10 transmits the identification code D to the distribution server each time the identification code D is extracted from the acoustic signal X. FIG. The distribution server identifies the second teaching material content Ce corresponding to the identification code D received from the terminal device 10 from the reference table Q and transmits it to the terminal device 10 . The terminal device 10 reproduces the second teaching material content Ce received from the distribution server.

(13) In each of the above-described embodiments, when content including sounds and images related to a lecture (hereinafter referred to as "lecture content") is played back by the playback device 20, an acoustic component Z representing an identification code D is added to the sound related to the lecture. You may A plurality of different identification codes D are sequentially added in parallel with the reproduction of the lecture contents. As can be understood from the above description, the reproduction device 20 generates the first teaching material content Ca by adding the acoustic component Z representing the identification code D to the lecture content, and reproduces the first teaching material content C. FIG.

(14) In each of the above embodiments, a different identification code D is associated with each of the plurality of unit sections T of the first teaching material content Ca. may be commonly associated with the identification code D of the second teaching material content Ce.

(15) In the third embodiment, the management server 30 can use the history data P transmitted from the terminal device 10 in various ways. For example, the history data P transmitted from the terminal device 10 may be used to confirm attendance at a lecture using the first teaching material content Ca, or to approve credit for the first teaching material content Ca.

(16) In each of the above embodiments, the learning content Cb is stored in the terminal device 10, but the learning content Cb may be stored in a distribution device that can communicate with the terminal device 10. FIG. The terminal device 10 transmits the extracted identification code D to the distribution device. The distribution device identifies the second teaching material content Ce corresponding to the identification code D transmitted from the terminal device 10 and transmits it to the terminal device 10 . Then, the terminal device 10 reproduces the second teaching material content Ce transmitted from the distribution device.

(17) In the second embodiment, when the second teaching material content Ce corresponding to the extracted identification code D is not found in the reference table Q, the second teaching material content Ce being played is maintained. A configuration is also adopted in which the second teaching material content Ce being reproduced is maintained when the identified identification code D is not in the reference table Q. That is, in the reference table Q, both the identification code D and the second educational content Ce are registered for the unit sections T after the beginning of the plurality of unit sections T for continuously reproducing the common second teaching material content Ce. is not necessary.

(18) In each of the forms described above, it is assumed that a plurality of educational institutions (for example, preparatory schools or schools) employ the learning system 100 . In the above case, while the first teaching material content Ca is prepared for each educational institution, the common learning content Cb may be used across a plurality of educational institutions. A reference table Q may be prepared for each educational institution, or a common reference table Q may be prepared for a plurality of educational institutions. Also, a plurality of different learning contents Cb may be used for the first teaching material contents Ca.

(19) In each of the above embodiments, data other than the identification code D may be used to reproduce the second teaching material content Ce. For example, the instruction data corresponding to the identification code D is used to reproduce the second teaching material content Ce. The instruction data is data that instructs how to reproduce the second teaching material content Ce indicated by the identification code D (for example, whether to reproduce the second teaching material content Ce by display or sound). Specifically, the terminal device 10 associates, for example, data identifying an educational institution that provides the first teaching material content Ca (hereinafter referred to as "institution data") with an identification code D related to the first teaching material content Ca. Stored for each institution. The identification code D extracted by the identification extraction unit 113 and the engine data corresponding to the identification code D are transmitted to the distribution device via the communication network. The distribution device stores the correspondence between the institution data, the identification code D, and the instruction data for each educational institution. The distribution device that has received the identification code D and the institution data specifies instruction data corresponding to the identification code D and the institution data, and transmits it to the terminal device 10 . The terminal device 10 that has transmitted the instruction data reproduces the second teaching material content Ce corresponding to the identification code D according to the instruction data transmitted from the distribution device. Note that the instruction data may be stored in the terminal device 10 . That is, the distribution device can be omitted. Also, it is not essential to use the institution data in reproducing the second teaching material content Ce. For example, if a different identification code D is prepared for each educational institution, or if there is no need to distinguish instruction codes for each educational institution, no institution code is required.

(20) The functions of the terminal device 10 according to each of the embodiments described above are realized by cooperation between a processing circuit such as a CPU and a program, as illustrated in each embodiment. The program according to each of the forms described above can be provided in a form stored in a computer-readable recording medium and installed in a computer. The recording medium is, for example, a non-transitory recording medium, and an optical recording medium (optical disc) such as a CD-ROM is a good example. Also included are recording media in the form of It should be noted that the non-transitory recording medium includes any recording medium other than transitory, propagating signals, and does not exclude volatile recording media. Alternatively, the program may be provided to the computer in the form of distribution via a communication network.

<Appendix>
For example, the following configuration can be grasped from the form illustrated above.

A terminal device according to a preferred aspect (first aspect) of the present invention is a terminal device, which includes a plurality of acoustic components each representing a plurality of different identification codes. An identification extraction unit for extracting a code, and a reproduction control unit for causing a reproduction device to reproduce the second teaching material content corresponding to the identification code extracted by the identification extraction unit among the plurality of second teaching material contents. In the above aspect, the first teaching material content includes a plurality of sound components each representing a plurality of different identification codes, and among the plurality of second teaching material contents, the sound supplied in parallel with the reproduction of the first teaching material content A second teaching material content corresponding to the identification code extracted from the signal is played. Therefore, it is possible to provide users with a variety of second educational content corresponding to the first educational content with a simple configuration.

In a preferred example of the first aspect (second aspect), the plurality of acoustic components are included in a plurality of unit sections each having a predetermined length in the first teaching material content. In the above aspect, since the plurality of unit sections of the predetermined length in the first teaching material content each contain a plurality of sound components, the first It does not take much time to create teaching material contents.

In a preferred example (third mode) of either the first mode or the second mode (third mode), if there is the second teaching material content corresponding to the identification code extracted by the identification extraction section, the causing the reproduction device to reproduce the second educational content, and if there is no second educational content corresponding to the identification code extracted by the identification extraction unit, the reproduction of the second educational content being reproduced is maintained by the reproduction device; Let In the above aspect, if there is a second teaching material content corresponding to the identification code extracted by the identification extraction section, the second teaching material content is reproduced, and the second teaching material content corresponding to the identification code extracted by the identification extraction section is reproduced. is not present, the reproduction of the second teaching material content being reproduced is maintained. Therefore, among the plurality of identification codes, the second teaching material content may correspond to the identification code at an arbitrary point of time when the second teaching material content to be reproduced is switched. That is, it becomes unnecessary to associate the second educational content with all the identification codes.

In a preferred example (fourth mode) of any one of the first mode to the third mode, history data representing progress of learning using the first teaching material content is generated according to the identification code extracted by the identification extraction unit. A history generation unit is provided. In the above aspect, since the history data representing the progress of learning using the first teaching material content is generated according to the identification code, the identification code used for reproducing the second teaching material content can be diverted to generate the history data.

A method of operating a terminal device according to a preferred aspect (fifth aspect) of the present invention provides an acoustic signal supplied in parallel with reproduction of a first teaching material content containing a plurality of acoustic components respectively representing a plurality of different identification codes. and causes the reproducing device to reproduce the second teaching material content corresponding to the identification code extracted by the identification extracting unit among the plurality of second teaching material contents. In the above aspect, the first teaching material content includes a plurality of sound components each representing a plurality of different identification codes, and among the plurality of second teaching material contents, the sound supplied in parallel with the reproduction of the first teaching material content A second teaching material content corresponding to the identification code extracted from the signal is played. Therefore, it is possible to provide users with a variety of second educational content corresponding to the first educational content with a simple configuration.

According to a preferred aspect (sixth aspect) of the present invention, there is provided a program, in which an acoustic signal supplied in parallel with reproduction of a first teaching material content containing a plurality of acoustic components respectively representing a plurality of different identification codes is extracted from the identification code. and a reproduction control unit that causes a reproduction device to reproduce the second educational content corresponding to the identification code extracted by the identification extraction unit among a plurality of second teaching material contents. In the above aspect, the first teaching material content includes a plurality of sound components each representing a plurality of different identification codes, and among the plurality of second teaching material contents, the sound supplied in parallel with the reproduction of the first teaching material content A second teaching material content corresponding to the identification code extracted from the signal is played. Therefore, it is possible to provide users with a variety of second educational content corresponding to the first educational content with a simple configuration.

DESCRIPTION OF SYMBOLS 10... Terminal device, 100... Learning system, 11... Control apparatus, 113... Identification extraction part, 115... Reproduction control part, 117... History generation part, 12... Storage device, 14... Sound collection device, 15... Reproduction device, 17 ... communication device, 20 ... playback device, 30 ... management server.

Claims (6)

an identification extracting unit that sequentially extracts the identification codes from an acoustic signal that is supplied in parallel with the reproduction of the first teaching material content that includes, in time series, a plurality of acoustic components representing a plurality of different identification codes, respectively;
a reproduction control unit that causes a reproduction device to reproduce the second teaching material content corresponding to the identification code extracted by the identification extraction unit among the plurality of second teaching material contents ,
The plurality of identification codes includes an identification code associated with any one of the plurality of second teaching material content and an identification code not associated with the second teaching material content,
When the identification code extracted by the identification extraction unit is associated with the second educational content, the reproduction control unit causes the reproduction device to reproduce the second educational content, and the identification extraction unit extracts the second educational content. If the identified identification code is not associated with the second teaching material content, the playback device keeps playing the second teaching content that is being played.
Terminal equipment. an identification extracting unit that sequentially extracts the identification codes from an acoustic signal that is supplied in parallel with the reproduction of the first teaching material content that includes, in time series, a plurality of acoustic components representing a plurality of different identification codes, respectively;
a reproduction control unit that causes a reproduction device to reproduce the second teaching material content corresponding to the identification code extracted by the identification extraction unit among the plurality of second teaching material contents ;
a history generation unit that generates history data representing progress of learning using the first teaching material content according to the identification code extracted by the identification extraction unit;
A terminal device comprising sequentially extracting the identification codes from an acoustic signal supplied in parallel with the reproduction of the first teaching material content containing, in time series, a plurality of acoustic components each representing a plurality of different identification codes;
A method of operating a terminal device implemented by a computer for causing a reproduction device to reproduce a second educational content corresponding to the extracted identification code among a plurality of second educational content, comprising :
The plurality of identification codes includes an identification code associated with any one of the plurality of second teaching material content and an identification code not associated with the second teaching material content,
In the reproduction of the second teaching material content, when the second teaching material content is associated with the extracted identification code, the second teaching material content is played back by the playback device, and the extracted identification code is used as the second teaching material content. If the second teaching material content is not associated with the second teaching material content, causing the playback device to keep playing the second teaching material content that is being played.
How the terminal works. sequentially extracting the identification codes from an acoustic signal supplied in parallel with the reproduction of the first teaching material content containing, in time series, a plurality of acoustic components each representing a plurality of different identification codes;
causing a reproduction device to reproduce the second teaching material content corresponding to the extracted identification code among the plurality of second teaching material contents ;
history data representing progress of learning using the first teaching material content is generated according to the extracted identification code;
A method of operating a terminal device implemented by a computer. an identification extraction unit for sequentially extracting the identification codes from the acoustic signal supplied in parallel with the reproduction of the first teaching material content containing, in time series, a plurality of acoustic components each representing a plurality of different identification codes;
A program that causes a computer to function as a reproduction control unit that causes a reproduction device to reproduce the second teaching material content corresponding to the identification code extracted by the identification extraction unit among a plurality of second teaching material contents,
The plurality of identification codes includes an identification code associated with any one of the plurality of second teaching material content and an identification code not associated with the second teaching material content,
When the identification code extracted by the identification extraction unit is associated with the second educational content, the reproduction control unit causes the reproduction device to reproduce the second educational content, and the identification extraction unit extracts the second educational content. If the identified identification code is not associated with the second teaching material content, the playback device keeps playing the second teaching content that is being played.
program. an identification extracting unit for sequentially extracting the identification codes from the acoustic signal supplied in parallel with the reproduction of the first teaching material content containing, in time series, a plurality of acoustic components each representing a plurality of different identification codes ;
a reproduction control unit that causes a reproduction device to reproduce the second teaching material content corresponding to the identification code extracted by the identification extraction unit among the plurality of second teaching material contents ;
A history generation unit that generates history data representing progress of learning using the first teaching material content according to the identification code extracted by the identification extraction unit.
A program that makes a computer function as a

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