JP4036191B2 - Playback apparatus and playback method - Google Patents

Description

  The present invention relates to a playback apparatus and playback method for playing back content including, for example, a main part and commercials.

  Conventionally, several methods have been proposed in which a commercial (hereinafter abbreviated as CM) is fast-forwarded (skip) during content playback and the main part is subsequently played back. The method described in Patent Document 1 below uses a black frame inserted between the CM and the main part. In US broadcasting, it is a black screen that exists between CMs and between CMs and the main story, and may last several fields or several tens of fields.

Japanese Patent No. 3332756

  Also, paying attention to the characteristics of the audio signal of the broadcast content, if the audio type (stereo, monaural, bilingual, etc.) is different between the CM and the main volume, this difference is judged and the CM part is cut at the time of recording. Or fast-forward during playback. For example, in the case of a CM, attention is often paid to stereo sound, so that the CM and the main part are distinguished.

  In addition, as described in Patent Document 2 below, there has been proposed a method of rewinding an amount of time that is obtained by dividing a fast-forwarded amount by a minimum unit time of CM.

Japanese Patent No. 3219647

  There has been proposed a playback apparatus in which a user skips and plays a CM by operating a skip key. Japanese Patent Application Laid-Open No. 2004-228561 describes a method of making the skip time variable in consideration of the delay time until the user first presses the skip button.

JP 2002-152687 A

  On the other hand, conventionally, when seeking to a target position during content playback, a scene change part and still images taken every certain time are extracted, and a plurality of still images near the current playback (viewing) position are displayed (hereinafter referred to as “replay”). (Abbreviated as “visual search”).

  However, none of the conventional CM skips described above can always skip only the CM portion accurately for any content. For example, in broadcasting using a black frame, a black frame is not necessarily inserted between the CM and the main story, and may exist in the main story, so the CM portion is detected incorrectly. There was a possibility.

In the case of skipping a CM by manual operation, an operation of rewinding a little after entering the main part is required due to excessive skipping. This is not only cumbersome to operate, but for example, when you want to watch “Progress” to “Progress” step by step in a sports program, or “Problems to Answer” step by step in a quiz program, If you send too much, you may know the “result” or “answer” suddenly, and the fun of program playback will decrease.

  In addition, according to the conventional visual search, for example, at least three still images of an image 15 seconds before, a current image, and an image 15 seconds later are required, and usually 5 or more still images from around the playback position. Must be taken out. As a result, there is a problem that the processing amount increases and the time (response) until the user can select a target becomes long.

  Furthermore, in the visual search method, there are operations such as (1) switching the search mode from normal playback, (2) selecting a still image near the target seek position, and (3) exiting the search mode and returning to the normal playback screen. It is necessary and it is very difficult to operate with one button with good response. In addition, as in the case of the above-described manual operation CM skip, there is a problem that the interest is reduced depending on the contents of the program.

  An object of the present invention is to provide a playback device and a playback method capable of reducing overfeeding and returning too much when searching for content, and preventing damage to the content by overfeeding as much as possible. It is what.

To solve the problems described above, the inventions is a reproducing apparatus for reproducing content,
Means for moving to a predetermined reproduction position of the content by a first reproduction position movement command;
First reproducing means for reproducing the content from the moving position;
A calculation means for calculating the playback position movement amount from the playback position movement command;
Second reproduction means for reproducing the content at a position shifted from the movement position by the reproduction position movement amount calculated by the calculation means;
Means for processing the content played back by the second playback means;
And stop means for stopping the playback Ri by the elapsed or after stop command content being played Jo Tokoro time by the second reproducing means,
A playback apparatus comprising one or more output means for outputting content being played back by the first playback means and the second playback means.

This inventions is a reproducing method for reproducing content,
Moving to a predetermined playback position of the content by a first playback position movement command;
A calculation step for calculating the playback position movement amount from the playback position movement command;
A first reproduction step of reproducing the content from the moving position;
A second playback step of playing back content at a position shifted from the moving position by the playback position movement amount calculated by the calculating step;
Processing the content played in the second playback step;
A stop step of stopping the playback Ri by the elapsed or after stop command content being played Jo Tokoro time by a second regeneration step,
A reproduction method comprising: an output step for outputting content reproduced in the first reproduction step and the second reproduction step.

  In the present invention, the user can be given an opportunity to decide whether to press the skip button again by showing the user a preview image when the user next presses the skip button. It is possible to prevent overshoot. Further, since the preview image is automatically stopped after the predetermined time A has elapsed, the user does not have to perform an operation for stopping the image reproduced by the second reproduction means.

  In the present invention, by processing the preview image reproduced by the second reproduction means and reducing the amount of information, the user cannot know the details of the preview image, and is reproduced by the second reproduction means. Even if the preview image is viewed, it is possible to keep the content interesting. In addition, by reducing the information amount of the preview image, it is possible to reduce the cost by providing one playback system and output unit for generating the preview image.

  Further, in the present invention, when the user continuously presses the skip button, the skip amount of the number of times the user has continuously pressed can be skipped at once. As a result, the preview image can be prevented from being displayed a plurality of times, and the skip response can be improved. Also, when the second skip command is issued in the situation where the target position is passed when the skip button is pressed once, it is possible to skip the amount considering the time interval of pressing the skip button, and quickly It becomes possible to skip to the position.

  Hereinafter, an embodiment of a playback apparatus will be described with reference to FIGS. 1 and 2. The configuration in FIG. 2 is a configuration in which an audio processing module is added to the configuration in FIG.

1 and 2, reference numeral 1 denotes a system controller. The system controller 1 includes, for example, a system LSI (Large Scale Integration) and a program that operates on the LSI. The system controller 1 and each module are connected by a bus so that each module can be controlled, data can be transferred, and demultiplexing (demultiplexing) or timing control can be performed as necessary. The system controller 1 is not limited to a system LSI and a program, and may be configured only by software or hardware.

  The content supply unit 2 is, for example, a hard disk, and can output recorded content data to a bus by an external command. In addition to the hard disk, the content supply unit 2 only needs to be a medium that can be randomly accessed and can supply content such as a DVD (Digital Versatile Disc) medium in a range where skipping is desired. For example, a network with high speed and response may be used. The content may be uncompressed audio data, video data, text data, or data obtained by compressing these data in various compression formats. Furthermore, the present invention can also be applied to a playback apparatus that performs playback while recording.

  A RAM (Random Access Memory) 3 is, for example, a DRAM (Dynamic Random Access Memory), which caches data from the content supply unit 2, stores data output from the video decoder 5 and the audio decoder 8, an image processing unit 6, The image processed by the audio processing unit 9 is stored. The RAM 3 may be another memory as long as data can be stored and taken out by an external command, and may be an SDRAM (Synchronous Random Access Memory) or the like.

  The operation unit 4 is, for example, a remote controller, and can transmit an instruction from a user to the system controller 1. Note that the operation unit 4 may be another device as long as it can transmit an instruction from the user to the system controller 1, and may be an operation panel or a mouse of the main body.

  The video decoder 5 is, for example, an MPEG (Moving Picture Experts Group) 2 video decoder, and can decode data supplied from the content supply unit 2. Note that the video decoder 5 may have another configuration as long as it can decode data provided from the content supply unit 2, and is realized by hardware or software, or a combination of hardware and software. Further, in order to improve the processing capability, it may be composed of a plurality of decoders, or may be one that processes uncompressed data.

  The image processing unit 6 is, for example, a DSP (Digital Signal Processor), and can perform processing such as image enlargement / reduction or mosaic processing and image-image synthesis processing. For example, in the case of MPEG2 compressed data, a mosaic image can be obtained by decoding using only low-order DCT coefficients. The image processing unit 6 only needs to be able to process and synthesize an image, and is realized by hardware or software, or a combination of hardware and software.

  The image output unit 7 is, for example, a DAC (Digital to Analog Converter) and an NTSC (National Television System Committee) encoder, and can output data stored in the RAM 3 to a video input terminal of the television receiver. . Note that the image output unit 7 may have another configuration as long as the data in the RAM 3 can be output to the outside, and may output the data as it is. In the example shown in the figure, the output terminal is configured to have one output terminal, but two or more output terminals are provided so that a playback image and an image for CM skip are output to different displays. May be.

  The audio decoder 8 is, for example, an MPEG1 AudioLayer2 decoder, and can decode data supplied from the content supply unit 2. The audio decoder 8 may be any other decoder that can decode data provided from the content supply unit, and is realized by hardware, software, or a combination of hardware and software.

  The sound processing unit 9 is a DSP, for example, and can perform mute, processing, synthesis processing, and the like. Note that the audio processing unit 9 only needs to be able to perform processing for processing audio, and may be realized by hardware or software, or a combination of hardware and software.

  The audio output unit 10 is, for example, a DAC, and can output data stored in the RAM 3 to an audio input terminal of the television receiver. The audio output unit 10 may be another one as long as it can output the data in the RAM 3 to the outside, or may be output as it is digitally. In the case of audio output, one of the audio of the reproduced content and the audio at the previous position when skipped is output. Alternatively, these two sounds may be output as different output channels.

  All of the configurations described above may be realized with one chip, or a portion described as one module may be configured with a plurality of chips. Moreover, when a part is implement | achieved by implementation by software, CPU (Central Processing Unit) and other resources may be shared between modules.

  Next, the operation of one embodiment of the present invention will be described. In the following description, it is assumed that a television program is recorded and used for skipping a CM when the recorded program is viewed. The number of seconds applied is used with reference to the broadcast time of Japanese commercials.

  FIG. 3 shows a flow of an example of the algorithm (process) of the present invention that operates in the system controller 1. The number of seconds shown in FIG. 3 and FIG. 4 described later is merely an example, and can be changed to an arbitrary time. Further, in the following description, one unit of CM is set to 15 seconds, and the skip amount when the skip button (fast forward direction) is pressed once is set to 15 seconds (-15 seconds in the rewind direction).

  In addition, in order to clarify the procedure, only the fast-forward direction is mainly explained, but the rewind direction can also be processed by a substantially equivalent method by applying the time axis in an inverted manner.

  In step S101, the system controller 1 determines whether the content is being reproduced or whether a search command is present. If there is a content search request during playback or not during playback, the process proceeds to step S102. Otherwise, the process ends without performing any processing.

  In step S102, the system controller 1 determines whether or not a skip command has been issued. If there is no skip command, the process returns to step S101. If it is determined that there is a skip command, the process proceeds to step S103.

  In step S103, the system controller 1 skips the skip amount when the skip command is received once, for example, 15 seconds, and the skip amount when the skip command is received and the user next issues the skip command (the skip button is pressed). For example, an image of one frame after 31 seconds is added from the content supply unit 2, decoded by the video decoder 5, and stored in the RAM 3. The video decoder 5 can decode the image after 31 seconds while decoding the main video data. However, a video decoder other than the video decoder 5 may be provided.

  Here, the image after 31 seconds from the current reproduction position is read because an image to be reproduced (hereinafter referred to as a preview image as appropriate) is assumed when the user next issues a skip command. ). For this reason, the preview image is not limited to a still image but may be a moving image.

In addition, when the content is compressed by MPEG, it is preferable to use the location of an I picture (Intra-coded picture) as a preview image. In this case, B
Compared to the case of extracting a picture (Bidirectionally predictive-coded picture) or a P picture (Predictive-coded picture: forward predictive coded picture) There is an advantage that the load is reduced. After the preview image is completely read, the process proceeds to step S104.

  In step S <b> 104, the system controller 1 processes the preview image stored in the RAM 3 using the image processing unit 6. Here, the preview image is processed because if you display the unprocessed preview image, you will know the details of the future video that has not yet been played. Depending on the content, This is because the fun is reduced.

  Various processing can be considered as the processing method. For example, mosaic processing or extraction of a quarter portion of the original image can be processed with relatively little load. The processing method may be other than those described above, and the processing may be performed to such an extent that the details of the video content are not known and the outline can be understood in order to determine whether the user is a CM.

  The processed preview image (hereinafter appropriately referred to as the processed preview image) is subjected to alpha blending with a size of 1/6, for example, at a position on the lower right of the screen on the reproduced image after skipping in the image processing unit 6. α blending is a process for creating a composite image while changing the transparency α of a plurality of video data. Note that the composition method (size, position, transparency, etc. of the preview image) may be a fixed value in the system, or may be set by the user. The synthesized image is reproduced by a command from the system controller 1 and output from the image output unit 7. When the process of step S104 ends, the process proceeds to step S105.

  In step S <b> 105, the system controller 1 determines whether or not a predetermined time A, for example, 1 second has elapsed since the processing advance notice image is displayed, or whether there is a request to stop the processing advance notice image display. The reason for determining whether or not one second has elapsed is to display a composite preview image while the user determines whether to issue a skip command (press the skip button). . For this reason, the time of 1 second may be shorter or longer, and may be set by the user.

  In addition, it is determined whether or not there is a request for canceling the processing advance notice image display. When the processing advance notice image is displayed, for example, when it becomes necessary to perform processing such as playback stop, it is possible to respond immediately. It is for doing so. If the notice display time is short, this determination can be omitted to simplify the process. If it is determined in step S104 that the specified time has elapsed or that there is a cancel request, the process proceeds to step S106.

  In step S <b> 106, the system controller 1 ends the combined display of the processing advance notice image, performs normal reproduction, and outputs an image from the image output unit 7. Thereafter, the process returns to step S101, and the process is repeated in order as described above. Since the display of the processing preview image is automatically stopped after a predetermined time has elapsed, the user does not need to perform an operation for stopping the display of the processing preview image.

  An example of the above processing is the basic processing of one embodiment of the present invention. Another example of the process in which the process of FIG. 3 is improved and the operability is further improved is shown in the flowcharts of FIGS. These flowcharts in FIGS. 4 and 5 show a flow of a series of processing, but are divided into two diagrams due to the limitation of the drawing space. In FIG. 4 and FIG. 5, processing parts common to FIG. 3 will be described briefly.

  In brief, in Step S203, Step S204, and Steps S211 to S213, when 15 seconds (one skip unit) is sent, the time interval when the user presses the skip button is measured and added. This is a process for seeking the remainder of the skip by semi-automatically fast-forwarding or rewinding based on the measured and added time intervals. In this process, the delay time variable and the delay total variable are used for time measurement after the user presses the skip button until the next press of the skip button.

  In steps S206 to S210, when the skip button is continuously pressed within a short time, for example, within an interval of 0.5 seconds, the skip process is not performed every time the button is pressed, and seek, image processing, and composite playback are performed collectively. This is a process for reducing the load on the system. The process of skipping the skip amount of the number of times pressed continuously is referred to as batch skip. For determining whether or not the skip button has been continuously pressed, a method of counting the number of times the skip button has been pressed within a predetermined time and a time interval between the press of the skip button and the next press is a predetermined time, for example, 0. A method is used to check if it is within 5 seconds.

  4 and 5 is a method of counting how many times the button is pressed within an interval of 0.5 seconds. In order to perform counting, a batch counter variable and a batch skip determination time variable are used.

  It should be noted that the current time in the processing from the following steps S201 to S217 means the actual time when the processing is executed, and does not indicate the time stamp of the content.

  In step S201, the system controller 1 initializes various parameters necessary for processing. For example, the batch skip counter and the total delay are set to 0, and the playback start time is set in the delay calculation variable and the batch skip determination time variable.

  In step S202, as in step S101, it is determined whether content is being played back or a search command is present. If there is a content search request during playback or not during playback, the process proceeds to step S203. Otherwise, the process ends without performing any processing.

  In step S203, the system controller 1 determines whether or not a fast-forward command has been issued within a specified time, for example, 2 seconds after the previous skip processing (skip in the fast-forward direction), and whether or not the total delay is other than zero. To do. This is a process for semi-automatically fast-forwarding the “remainder part” of less than 15 seconds that cannot be processed by the skip command after the skip process.

  Here, the reason why the fast-forward command is determined is because it is assumed that the user operates the fast-forward button. By sharing the command related to this processing with a normal fast-forward command, there is an advantage that it is not necessary to increase the number of buttons or add a command, and the operation can be facilitated and the cost can be reduced. In addition, in order to determine the normal fast-forward process and the surplus part fast-forward, it is determined that it is within 2 seconds from the previous skip process, but this time may be less than one unit of skip time, for example, less than 15 seconds. Any other value may be used, and the user may be able to set this time.

  A dedicated skip command (button) may be prepared to clearly distinguish it from the fast-forward process. In this case, the determination of 2 seconds described above is unnecessary. In step S203, if a fast-forward command is detected within 2 seconds after the previous skip process, the process proceeds to step S204. Otherwise, the process proceeds to step S205.

  In step S <b> 204, the system controller 1 calculates the remaining time (less than one unit of skip), seeks the playback position for the remaining amount of time, and restarts playback. The calculation of "Remaining time" is calculated by subtracting the total delay from the skip 1 unit time (15 seconds) based on the total delay obtained by adding the time interval when the user presses the skip button. Further, it is obtained by obtaining a value obtained by subtracting the time until the above-mentioned fast-forward command is detected.

  In the process of step S204, a method of reducing the amount to be sent for a certain period of time, for example, about 3 seconds is also effective so as not to cause overfeeding due to fast forwarding. If “too much time” is a negative value, fast-forward processing is not performed. After performing the fast-forward process, the total delay is reset (0 is substituted). When the process of step S204 ends, the process proceeds to step S202.

  In step S205, as in step S102, it is determined whether or not a skip command has been issued. If a skip instruction is detected, the process proceeds to step S206. If a skip instruction is not detected, the process proceeds to step S207.

  In step S206, the system controller 1 determines whether the value of the batch skip counter is 1 or more. Here, whether or not it is 1 or more is determined because the batch skip counter is reset to 0 at the start of this algorithm. If it can be determined whether or not a skip instruction has been received at least once, A value may be used. If the value of the batch skip counter is less than 1 in step S206, the process returns to step S202. If the number is 1 or more, the process proceeds to step S209.

  In step S207, the system controller 1 adds 1 to the value of the batch skip counter in order to count the number of times the skip command has been received. When this process ends, the process proceeds to step S208.

  In step S208, the system controller 1 sets the current time as the batch skip determination time in order to measure the time until the next skip command comes. When this process ends, the process proceeds to step S209.

  In step S209, the system controller 1 determines whether or not the difference between the current time and the batch skip determination time is within 0.5 seconds. Here, the difference determination time is set to 0.5 seconds in order to determine that the user has continuously pressed the skip key, and the user may arbitrarily set other values. If it is determined in step S209 that the difference is 0.5 second or less, the process returns to step S202. If not, the process proceeds to step S210. The part after step S210 is shown in FIG.

  In step S210, the system controller 1 obtains the number of skip instructions issued continuously from the value of the batch skip counter, and determines the skip position by multiplying this by the skip 1 unit time (15 seconds). . Thereafter, the batch skip counter is reset (0 is substituted). When the process of step S210 ends, the process proceeds to step S211.

  The processing of steps S206 to S210 is an example of batch skip processing for performing skip and image synthesis playback all at once when a skip command is issued continuously in a short time, and other processing procedures are used. May be. For example, when a large number of skip instructions are received in succession, a method of performing skip processing (such as composite display and intermediate position display) once every five times can also be used. By doing so, it is possible to show the progress of skipping to the user at a low load.

  In step S211, the system controller 1 obtains the difference between the value recorded in the delay calculation variable and the current time, and adds the obtained difference to the delay total variable. When the process of step S211 ends, the process proceeds to step S212.

  In step S212, the system controller 1 substitutes the remainder obtained by dividing the total delay by 15 seconds (skip 1 unit time) into the total delay. The reason why the total delay is divided by 15 seconds is to calculate “remaining time” for performing semi-automatic fast-forwarding in step S204. For this reason, it does not need to be the exact length of skip 1 unit time. When this process ends, the process proceeds to step S213.

  In step S213, the system controller 1 stores the current time in the delay calculation variable. This is because it is used in step S211 to calculate the interval until the next skip is performed. When the process of step S213 ends, the process proceeds to step S214.

  Steps S211 to S213 are skipped in advance when the next skip command, for example, a fast-forward command is received within a predetermined time after it is determined that the skip button has been pressed a plurality of times within a predetermined time or within a predetermined time interval. The total time of the time interval between the press of the button and the next press is calculated, and the amount of remainder obtained by dividing the total time by the amount of movement (15 seconds) when the skip button is pressed once is obtained. This extra amount is subtracted from 15 seconds, set to an amount to be skipped by the next skip instruction, and the next skip is executed.

  The next skip is executed as semi-automatic fast-forwarding in steps S203 and S204. Before step S211, the elapsed time from the previous skip is measured, and if more than 15 seconds have elapsed, a method such as resetting the total delay can be considered. When semi-automatic fast-forward is executed Other methods may be used as long as the process can obtain a value that is not excessively sent.

  In step S214, the system controller 1 reads an image after a predetermined time from the skip position. This is the same processing as step S103 in FIG. 3, but for the convenience of description in the flowchart, step S103 is based on the position at the time when the skip command is received, and in step S214, the position after skip is used as a reference. It is different. If the batch skip counter is 1 in step S214, the operation is the same as in step S103. Subsequent steps S215 to S217 are equivalent to steps S104 to S106 in FIG.

  In step S <b> 215, the system controller 1 processes the preview image stored in the RAM 3 using the image processing unit 6. The processing advance notice image is combined with the reproduced image after skipping in the image processing unit 6 and displayed. When the process of step S215 ends, the process proceeds to step S216.

  In step S <b> 216, the system controller 1 determines whether 1 second has elapsed since the processing advance notice image was displayed, or whether there is a request to stop the processing advance image display. If it is determined in step S216 that the specified time has elapsed or there is a cancel request, the process proceeds to step S217.

  In step S <b> 217, the system controller 1 ends the composite display of the processing advance notice image, performs normal reproduction, and outputs an image from the image output unit 7. Thereafter, the process returns to step S202, and the process is repeated in order as described above.

  The user operation (operation) when the CM is skipped and the display state of the screen at this time will be described below using FIG. 6 and FIG. 7 shows an example in which one preview image is displayed, but it is also possible to display two or more images at different times as shown in FIG. . The display images P1, P2,... In FIG. 7 and the display images Q1, Q2,.

  The example shown in FIG. 6 shows an example of content in which three types of CMs (CM1, CM2, CM3) are included in the main part. In FIG. 6, the elapsed time from the start of the first CM1 is shown on the content diagram, and further the skip situation at the time of the user's button operation is written on this, and on this, the CM The elapsed time is noted. In FIG. 7 and FIG. 8, in order to make it easy to understand the passage of time, the elapsed seconds since switching to each CM are shown in the upper right of the display screen.

  First, when CM1 is started (display image P1 in FIG. 7), the user presses the skip button once. However, since it is not considered that the user can always press the skip button immediately, a delay of 2 seconds is added in the example.

Since the skip button has been pressed, the skip position is the time point A ′ 15 seconds after the time of the press.
It becomes. At this time, the display image is P2 in FIG. CM2 at the skip position is reproduced, and a screen P2 in which an image obtained by processing the preview image CM3 after 15 seconds is further synthesized at the lower right of the screen is displayed. Since the user can see from the synthesized screen P3 that the CM3 is still reproduced when the skip button is further pressed, the user presses the skip button once again at a time point B after 1 second of A ′. A display image at time B (immediately before the skip button is pressed) is indicated by P3 in FIG.

  When the skip button is pressed, the program skips to the time point B ′ 15 seconds after the time point B. The display image P4 at this time is composed of a CM3 image to be reproduced and a processing notice image at the lower right of the screen. From this display image P4, it can be seen that if the user presses the skip button again, the main part is entered, so the fast-forward button is pressed at the time C at 2 seconds after B '.

  The display image before fast-forwarding at time C is P5 in FIG. 7, and since one second or more has elapsed since the skip was completed, the processing preview image disappears and the normal reproduction image is displayed. The total delay including the time until the fast-forward button is pressed is 3 seconds (the sum of BA ′ and CB ′). The total delay and 3 seconds of the fixed time are subtracted from the skip 1 unit time (15 seconds).

  Note that the time from the start of CM1 until the user presses the skip button is not subject to detection in this algorithm, and therefore, as shown in step S204, a predetermined time, for example, 3 seconds, is assumed as the expected time. It is made to pull. As a result, automatic fast-forward for 9 seconds is performed, and normal playback is started from the time point of 14 seconds of CM3 as shown by the display image P6 in FIG.

  FIG. 8 shows a case in which, in addition to the display of the processing notice image shown in FIG. 7, an image of the section from the skip to the notice image (image 9 seconds before the notice image) is displayed at the lower left of the screen. It is an example.

  As described above, according to the present invention, when searching for content, it is possible to prevent an excessive advance or return caused by the user pressing the skip button too much without significantly reducing the fun of the content. It becomes possible.

  The present invention is not limited to the above-described embodiment of the present invention, and various modifications and applications can be made without departing from the gist of the present invention.

  In the above-described embodiment, when it is assumed that the next skip is performed using the video processing preview image, it is determined whether the reproduction position is the main part or the CM. When the audio decoder 8, the audio processing unit 9, and the audio output unit 10 are provided as in the configuration illustrated in FIG. Judgment can be made. For example, it is possible to determine whether or not it is a CM by reproducing a sound of about several seconds.

It is a block diagram for demonstrating one Embodiment of the reproducing | regenerating apparatus in this invention. It is a block diagram which shows the structure in the case of performing audio | voice processing in this invention. It is a flowchart which shows the flow of an example of the process of one Embodiment of this invention. It is a flowchart which shows a part of flow of the other example of the process of this invention one Embodiment. It is a flowchart which shows the other part of the flow of the other example of the process of this embodiment of this invention. It is a basic diagram for demonstrating an example of operation | movement of one Embodiment of this invention. It is a basic diagram which shows the display image in each time of FIG. It is a basic diagram which shows the operation example in the case of displaying two preview images.

Explanation of symbols

1 System Controller 2 Content Supply Unit 3 RAM
4 Operation Unit 5 Video Decoder 6 Image Processing Unit 7 Image Output Unit 8 Audio Decoder 9 Audio Processing Unit 10 Audio Output Unit

Claims (34)

In a playback device for playing back content,
Means for moving to a predetermined reproduction position of the content by a first reproduction position movement command;
First reproducing means for reproducing the content from the moving position;
A calculation means for calculating a reproduction position movement amount from the reproduction position movement command;
Second reproduction means for reproducing the content at a position shifted from the movement position by the reproduction position movement amount calculated by the calculation means;
Means for processing the content reproduced by the second reproduction means;
And stop means for stopping the playback Ri by the elapsed or after stop command content being played Jo Tokoro time by the second reproducing means,
A playback apparatus comprising: one or more output means for outputting content being played back by the first playback means and the second playback means. In claim 1,
Means for reading the content at a position shifted from the movement position by the reproduction position movement amount ;
Means for storing the read content;
A playback apparatus comprising: means for playing back the stored content using second playback means. In claim 1,
A plurality of the second reproduction means, or a third reproduction means for reproducing the second reproduction means by time division;
Using the third playback means, the means for playing back the content in the section delimited by the second predetermined time position from the moving position, and the content played back using the third playback means from the output means And a playback device. In claim 1,
The reproduction apparatus characterized in that the first reproduction means and the second reproduction means comprise means for using the same reproduction means in a time division manner. In claim 1,
Means for synthesizing content to be reproduced by the first reproduction means and the second reproduction means;
A playback apparatus comprising: means for outputting the synthesized content from the output means. In claim 1,
First determination means for determining whether or not the first reproduction position movement command is continuously received;
Counting means for counting the number of times the first reproduction position movement command is received when it is determined by the first determination means that the first reproduction position movement instruction is continuous;
A total movement amount calculation means for calculating a reproduction position movement amount by multiplying the number counted by the counting means and the movement amount when the first reproduction position movement command is received once;
And a means for replacing the movement position with the movement amount obtained by the total movement amount calculation means. In claim 6 ,
While the first determination means determines that the first reproduction position movement command is continuous, the first reproduction means, the second reproduction means, or the first reproduction means and the first reproduction means 2. A reproducing apparatus comprising means for issuing a command for temporarily stopping or stopping the outputs of both reproducing means. In claim 6 ,
Means for the first determining means to determine that the first reproduction position movement command is continued by receiving the first reproduction position movement command a plurality of times within a third predetermined time. A playback device characterized by the above. In claim 6 ,
The first determination means that the first reproduction position movement command is continued, and the time interval from the previous reception of the first reproduction position movement command to the current reception is from the fourth predetermined time. Is a means for making a determination based on the shortness. In claim 1,
Second determination means for determining whether the first reproduction position movement command is continuously received;
Means for storing a total time of a time interval from the previous reception of the first reproduction position movement command to the current reception when it is determined that the second determination means is continuous;
When the second reproduction position movement command having a movement amount different from the first reproduction position movement command is received within the fifth predetermined time from the first reproduction position movement instruction, the total time is set to the first reproduction position movement instruction. An excessive amount divided by the amount of movement when one reproduction position movement command is received is obtained, and further subtracted from the amount of movement when the first reproduction position movement command is received once, and the second Means for setting the movement amount of the reproduction position movement command of
A playback apparatus comprising: means for playing back content using the first playback means from the position of the movement amount obtained by the calculation. According to claim 1 0,
When the second reproduction position movement command is received, the output of the first reproduction unit, the second reproduction unit, or both of the first reproduction unit and the second reproduction unit is paused or stopped. A playback apparatus comprising: means for issuing a command to perform. According to claim 1 0,
Means wherein the second determination means determines that the first reproduction position movement command is continued by receiving the first reproduction position movement instruction a plurality of times within a sixth predetermined time. A playback device characterized by the above. According to claim 1 0,
The second determination means indicates that the first reproduction position movement command is continuous, and that the time interval from the last reception of the first reproduction position movement command to the current reception is from a seventh predetermined time. Is a means for making a determination based on the shortness. According to claim 1 0,
Means for adding a time from the first reproduction position movement command to receiving the second reproduction position movement command to the total time before calculating the movement amount of the second reproduction position movement command; A reproducing apparatus characterized by the above. According to claim 1 0,
A means for subtracting an eighth predetermined amount of time from the movement amount of the second reproduction position movement command in order to prevent the movement of the second reproduction position movement command when calculating the movement amount of the second reproduction position movement command; A reproducing apparatus characterized by the above. In claim 1,
A playback apparatus comprising: means for outputting audio reproduced by the first reproduction means, and not outputting audio of content reproduced by the second reproduction means. In claim 1,
When reproduction is performed by the first reproduction unit and the second reproduction unit, the audio reproduced by the first reproduction unit and the audio reproduced by the second reproduction unit are output as output channels. A reproducing apparatus comprising means for separately outputting from the output means. In a playback method for playing back content,
Moving to a predetermined playback position of the content by a first playback position movement command;
A calculation step of calculating a reproduction position movement amount from the reproduction position movement command;
A first playback step of playing back content from the moving position;
A second playback step of playing back content at a position shifted by the playback position movement amount calculated by the calculation step from the movement position;
Processing the content played back in the second playback step;
A stop step of stopping the playback Ri by the above second has been that Jo Tokoro time or after stopping the content instruction reproduced by the reproduction step,
A reproduction method comprising: an output step for outputting content reproduced in the first reproduction step and the second reproduction step. In claim 18 ,
Reading the content at a position shifted from the movement position by the reproduction position movement amount ;
Storing the read content;
And a step of reproducing the stored content using a second reproduction step. In claim 18 ,
A plurality of the second reproduction steps, or a third reproduction step for reproducing the second reproduction step in a time division manner;
Using the third reproduction step, the step of reproducing the content of the section divided by the position of the second predetermined time from the moving position, and the content reproduced using the third reproduction step in the output step A reproduction method comprising: a step for outputting. In claim 18 ,
A playback method characterized in that the first playback step and the second playback step use the same playback step in a time-sharing manner. In claim 18 ,
Synthesizing contents to be reproduced in the first reproduction step and the second reproduction step;
And a step for outputting the synthesized content in the output step. In claim 18 ,
A first determination step of determining whether or not the first reproduction position movement command is continuously received;
A counting step for counting the number of times the first reproduction position movement command is received when it is determined that the first reproduction position movement command is continuous in the first determination step;
A total movement amount calculating step of calculating a reproduction position movement amount by multiplying the number counted in the counting step by the amount moved when the first reproduction position movement command is received once;
Replacing the movement position with the movement amount obtained in the total movement amount calculation step. According to claim 2 3,
While the first determination means determines that the first reproduction position movement command is continuous, the first reproduction means, the second reproduction means, or the first reproduction means and the first reproduction means A playback method comprising means for issuing a command to pause or stop the outputs of both playback means. According to claim 2 3,
The step of determining in the first determination step that the first reproduction position movement command is continued by receiving the first reproduction position movement command a plurality of times within a third predetermined time. A reproduction method characterized by the above. According to claim 2 3,
The first determination step indicates that the first reproduction position movement command is continuous, and the time interval from the last reception of the first reproduction position movement command to the current reception is determined from a fourth predetermined time. Is a step of determining by a short time. In claim 18 ,
A second determination step of determining whether or not the first reproduction position movement command is continuously received;
When it is determined that the second determination step is continuous, the step of storing the total time interval from the previous reception of the first reproduction position movement command to the reception of the current time;
When the second reproduction position movement command having a movement amount different from the first reproduction position movement command is received within the fifth predetermined time from the first reproduction position movement instruction, the total time is set to the first reproduction position movement instruction. An excessive amount divided by the amount of movement when one reproduction position movement command is received is obtained, and further subtracted from the amount of movement when the first reproduction position movement command is received once, and the second A step for setting the movement amount of the reproduction position movement command of
And a step of reproducing content using the first reproduction step from the position of the movement amount obtained by the calculation. According to claim 2 7,
When the second playback position movement command is received, the output of the first playback step, the second playback step, or both the first playback step and the second playback step is paused or stopped. A playback method comprising the step of issuing an instruction to perform. According to claim 2 7,
The step of determining in the second determination step that the first reproduction position movement command is continued by receiving the first reproduction position movement command a plurality of times within a sixth predetermined time. A reproduction method characterized by the above. According to claim 2 7,
The second determination step indicates that the first reproduction position movement command is continuous, and the time interval from the previous reception of the first reproduction position movement command to the reception of the current time is greater than a seventh predetermined time. Is a step of determining by a short time. According to claim 2 7,
Before calculating the amount of movement of the second reproduction position movement command, adding a time until the second reproduction position movement command is received from the first reproduction position movement command to the total time. A reproduction method characterized by the above. According to claim 2 7,
A step of subtracting an eighth predetermined amount of time from the amount of movement of the second reproduction position movement command in order to prevent movement too much when calculating the amount of movement of the second reproduction position movement command; A reproduction method characterized by the above. In claim 18 ,
A reproduction method comprising the steps of outputting the sound reproduced in the first reproduction step and not outputting the sound of the content reproduced in the second reproduction step. In claim 18 ,
When reproduction is performed in the first reproduction step and the second reproduction step, the audio reproduced in the first reproduction step and the audio reproduced in the second reproduction step are set as output channels. A reproduction method comprising: a step of separately outputting from the output step.

Images