JP3594569B2 - Digital broadcast receiver - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a digital broadcast receiving device for receiving digital broadcast.
[0002]
[Prior art]
For example, in a digital broadcast receiving system using satellites, a video / audio signal is compressed using digital signal compression technology, and a stream (transport stream) obtained by time-division multiplexing of video / audio digital signals of a plurality of programs is used as a transponder. Broadcasting via (satellite repeater). On the other hand, a broadcast receiving apparatus that receives such a digital broadcast selects one of a plurality of transponders of digital broadcast received through an antenna by a tuner, and selects one of a plurality of channels included in the one transponder. Are selected by demultiplex processing, and a video / audio signal is output by decoding the digital signal of the selected channel.
[0003]
By the way, in such digital television broadcasting, in addition to transmitting video and audio in the same manner as conventional analog broadcasting, service information (program name, program content, program start time, program duration, program genre information, etc.) is also provided. The receiving apparatus side can select a desired program from multi-channel broadcasting by an EPG (Electronic Program Guide) display function using an OSD (On Screen Display) function. Furthermore, using the EPG function, it is possible to select a program to be broadcast on the EPG and make a viewing reservation or a recording reservation. In addition, using the program genre information, programs having genre information corresponding to the genre input by the user can be extracted and displayed in a list.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned conventional digital broadcast receiving apparatus, the user needs to perform a key operation for the presentation, regardless of whether the function is the EPG display function or the genre search function, and the program desired by the user starts on a certain channel. And the like were not actively notified to the user from the device side.
[0005]
In view of the above circumstances, an object of the present invention is to provide a digital broadcast receiving apparatus capable of actively notifying that a program desired by a user starts on a certain channel.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the digital broadcast receiving apparatus of the present invention takes out program information included in a digital broadcast wave, selects a notification target program using selection information registered by a user, and Means for interrupting and displaying a message notifying the presence of the program to be notified on the currently displayed screen, and notifying that the selected program to be notified is uncontracted and not being contracted. The display is configured to be displayed.
[0007]
With the above configuration, the user need only give the selection information to the receiving device in advance, and does not need to go to the program selection result by the receiving device by himself / herself. That is, if the selection information is given to the receiving device side, it is only necessary to watch the program thereafter, and if a program suitable for the selection information is searched, the receiving device is actively viewing the program even if the program is not contracted. Will be announced on the screen of the program. If the program that satisfies the selection information is not yet contracted, for example, a message such as “△△ program starts on uncontracted XX channel” will be displayed, and the user is interested in the uncontracted channel. Information on the program can be obtained, and the broadcaster is given an opportunity to acquire a new contract.
[0008]
Further, the digital broadcast receiving apparatus of the present invention extracts program information included in a digital broadcast wave, selects a notification target program using the selection information registered by the user, and notifies the existence of the selected notification target program. Means for displaying a message on a screen at the time of power-on, and when the selected notification target program is not yet contracted, a notification is made and the fact that the selected program is not contracted is displayed. And
[0009]
With the above configuration, the user need only give the selection information to the receiving device in advance, and does not need to go to the program selection result by the receiving device by himself / herself. That is, if the selection information is given to the receiving device side, the television is turned off thereafter to complete the errand, and when the television is turned on thereafter, if a program suitable for the selection information is searched, even if there is no contract, Even in the case of a program, the receiving device actively notifies on the screen when the television is ON (initial screen or received program screen). If the program that satisfies the selection information is not yet contracted, for example, a message such as “△△ program starts on uncontracted XX channel” will be displayed, and the user is interested in the uncontracted channel. Information on the program can be obtained, and the broadcaster is given an opportunity to acquire a new contract.
[0010]
It is preferable to display contracted party information extracted from the program information for the selected uncontracted notification target program. If a program that meets the selection information is not yet contracted, for example, during the preview display, the user is selected by displaying a message such as "Now preview display, contract application is up to XX". It is possible to obtain information such as the fact that a program is being previewed and a contract application method.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 4. Here, a case where a user views a BS (Broadcasting via Satellite) digital broadcast is illustrated. FIG. 1 is a block diagram showing a digital broadcast receiving apparatus 30 of this embodiment, FIG. 2 is a flowchart showing a program announcement process of this embodiment, and FIG. 2 is an explanatory diagram illustrating a program announcement. FIG. 4 is an explanatory diagram illustrating a menu screen.
[0012]
The antenna 1 shown in FIG. 1 is arranged outdoors in a predetermined direction, and receives a digital broadcast wave transmitted from a BS. The antenna 1 generally includes a frequency converter, and supplies a received / frequency-converted signal to the BS digital tuner 2.
[0013]
The BS digital tuner 2 extracts a signal of a specific frequency from the received high-frequency digital modulation signal. That is, a process of selecting one from a plurality of transponders of digital broadcasting is performed. The tuner 2 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, and demodulates the selected digital modulation signal to output a transport stream.
[0014]
The demultiplexer (DEMUX) 3 separates the transport stream received from the tuner 2 into a video stream, an audio stream, and PSI / SI of MPEG2 (Moving Picture Experts Group2). The demultiplexer 3 supplies the video stream and the audio stream to the AV decoder 4, and provides service information (program name, program details, program start time, program duration, genre) included in PSI / SI (Program Specific Information / Service Information). Information, contact information at the time of contract, etc.) are supplied to the system controller 12. As described above, a plurality of channels are multiplexed in the transport stream, and a process for selecting an arbitrary channel from the multiplexed channel is performed by selecting an arbitrary channel from the PSI / SI in the transport stream. It becomes possible by extracting data such as which packet ID is multiplexed. Further, the selection of the transport stream (the selection of the transponder) can also be performed based on the PSI / SI information.
[0015]
The AV decoder 4 includes a video decoder that decodes a video stream and an audio decoder that decodes an audio stream. The video decoder obtains a quantization coefficient and a motion vector by decoding the input variable-length code, and performs an inverse DCT transform, a motion compensation control based on the motion vector, and the like. The audio decoder decodes the input coded signal to generate audio data.
[0016]
The video processing circuit 5 receives the video data from the AV decoder 4 and performs D / A conversion to generate a video signal. The audio signal processing circuit 6 receives the audio data output from the AV decoder 4, performs D / A conversion, and generates, for example, a right (R) sound analog signal and a left (L) sound analog signal.
[0017]
The OSD circuit 11 outputs to the adder 20 bitmap data based on the character information and color information instructed by the system controller 12 to output. The adder 20 incorporates the video signal based on the bitmap data into the video signal output from the video processing circuit 5 and supplies the video signal to the drive circuit 7. The OSD circuit 11 displays an EPG (Electronic Program Guide) based on the service information (SI) received by the system controller 12, and further includes, for example, contact information at the time of contract included in the service information (SI). A message display such as "The contract application is up to XX" can be performed based on the previous information, for example, XX.
[0018]
The receiver 8 performs video display using the video signals (R, G, B signals and vertical / horizontal synchronization signals) supplied from the drive circuit 7. Further, the speaker 14 performs audio output based on the audio signal output from the audio processing circuit 6.
[0019]
The remote control transmitter 9 is a transmitter for sending a command to the broadcast receiver 30. When a key (not shown) provided on the remote control transmitter 9 is operated, a signal light (remote control signal) indicating a command corresponding to the key is transmitted from a light emitting unit (not shown). The remote control light receiver 10 receives the signal light, converts the signal light into an electric signal, and supplies the electric signal to the system controller 12. The user uses the remote control transmitter 9 to input keyword information. As the keyword information, a word stored in advance may be selected by a number, or the remote control transmitter 9 may have a character input function so that the word itself can be input. The keyword information is recognized for the user to select a favorite program or the like.
[0020]
The non-volatile memory 13 stores service information, keyword information (user input selection information), and message data such as “Now being previewed” that constitute a program table or the like.
[0021]
The IC card 15a (for example, a B-CAS card for BS digital broadcasting) stores key information for making payable broadcasts viewable and purchase history information for PPV (pay-per-view) programs to be charged for each program. Store. A CA (Conditional Access) module 15 performs a write process and a read process of various information between the system controller 12 and the IC card 15a. The various information includes key information and purchase history information required to view pay digital broadcasts, as well as preview information that enables unpurchased programs to be viewed only for a certain period (time). Based on this preview information, the system controller 12 can determine whether the program selected by the user is being previewed or the preview period has ended.
[0022]
The calendar function unit 16 provides the current date and time information to the system controller 12. The current date and time information is used not only for displaying the current date and time, but also for selecting a notification program.
[0023]
The system controller 12 performs overall control of the digital broadcast receiving apparatus 30. In particular, the system controller 12 executes the following program notification control as control according to the present invention.
[0024]
FIG. 2 is a flowchart showing the program notification processing of this embodiment, and FIG. 3 is an explanatory diagram showing an example of a display screen by the program notification processing. Here, it is assumed that the user has registered keyword information “marathon” in advance. The broadcast receiving device 30 receives a digital broadcast (step S1) and determines whether there is service information (SI) (step S2). If there is service information, the system controller 12 performs a process of acquiring it and storing it in the nonvolatile memory 13 (step S3). Then, the service information and the keyword information "marathon" are read from the nonvolatile memory 13 (step S4), and the keyword information and the service information are compared (step S5) to determine whether there is a program to be notified. (Step S6). Specifically, a program having genre information corresponding to “marathon” and having a program start time within, for example, one minute of the current time (provided from the calendar function unit 16) is set as a notification program.
[0025]
If there is a program to be notified, the system controller 12 refers to the information in the IC card 15a or the non-volatile memory 13 provided from the CA module 15, and determines whether the program is contracted / purchased. (Step S7). If the program has been subscribed / purchased, the system controller 12 reads out the message data of “The ___program starts at the subscribed ___ broadcast station” stored in the non-volatile memory 13 and obtains it from the service information. By combining the information with the information, a notification message stating that "a special program for a marathon goal starts at the contracted XX broadcasting station" is generated, and displayed on the received video using the OSD circuit 11 (step S8). If the program is not contracted or not purchased, the system controller 12 determines whether the program can be previewed based on the information provided from the CA module 15 (step S10).
[0026]
If the preview is not possible, the system controller 12 reads out the message data of “__________________ Begins at ___ unsubscribed broadcasting station” stored in the nonvolatile memory 13 and combines the message data with the information obtained from the service information. A notification message "A marathon goal special program starts at an unsubscribed broadcasting station is started" is generated and displayed on the received video using the OSD circuit 11 (step S9). If the preview is possible, the system controller 12 reads out the message “The __ program starts at the unsubscribed ________________________________________________________” stored in the nonvolatile memory 13 and “Do you want to display the preview?” Combined with the information obtained from the above, a notification message stating "The marathon goal special program will start at the unsubscribed XX broadcasting station. Do you want to display a preview?" It is displayed (step S11). By this processing, as shown in FIG. 3A, a notification message is displayed by interrupting the program currently being viewed by the user.
[0027]
The system controller 12 determines whether the user has requested preview display of the program (step S12). If the user wants to preview the program, he or she can use a direction key (not shown) of the remote control transmitter 9 to select “Yes” on the screen of FIG. 2A and press a decision key (not shown). When the user requests a preview display of the program, a process of displaying a preview is performed (step S13). Further, the system controller 12 reads the message “Preview is being displayed” stored in the non-volatile memory 13 and displays the message on the received video using the OSD circuit 11 (step S14). At this time, a notification message stating "the contract application is up to XX" is also displayed (step S15). By this processing, as shown in FIG. 2B, a notification message is displayed together with the preview display, and it is possible to urge the user to subscribe to an uncontracted program. Since the notification message regarding the start of the program is to be displayed so as to be superimposed on the program being viewed by the user, the notification message is displayed semi-transparently so that the received video can be seen.
[0028]
As shown in FIG. 4, a selection menu screen may be displayed to allow the user to select an information notification method. For example, if "YES" is selected for "notify when power is turned on" of "2" in FIG. 4, the digital broadcast receiving apparatus 30 is periodically turned on in the standby state (the television is off but the information receiving function is operable). Then, the program information is retrieved, the corresponding information is stored in the nonvolatile memory 13, and when the user turns on the digital broadcast receiver 30 on the television, a notification message is displayed on the initial screen or the received video screen. By setting both “1” “notification at any time during program viewing” and “2” “notification at power-on” to “YES”, both functions can be enjoyed.
[0029]
【The invention's effect】
As described above, according to the present invention, if the selection information is given to the receiving device side, it is only necessary to watch the program thereafter, and if a program suitable for the selection information is searched, the receiving device It will notify you by actively interrupting the screen of the program you are watching. Alternatively, if a program suitable for the selection information is searched for when the television is turned on, the receiving device actively notifies on the screen when the television is turned on (initial screen or received program screen). . In addition, if the notification message includes information about a program on an uncontracted channel, a message such as “△△ program starts on uncontracted XX channel” will be displayed, and the user will be notified of the uncontracted channel. , Information about the program of interest can be obtained, and the broadcaster is given an opportunity to acquire a new contract. Furthermore, by displaying a notification message such as "Preview is currently being displayed, contract application is up to XX", the user can obtain information such as that the selected program is being previewed and the contract application method. be able to.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a digital broadcast receiving apparatus according to an embodiment of the present invention.
FIG. 2 is a flowchart showing a program process according to the embodiment of the present invention.
FIG. 3 is an explanatory diagram showing a state in which a notification message is displayed in a received video portion according to the embodiment of the present invention.
FIG. 4 is an explanatory diagram showing an example of a program notification screen according to the embodiment of the present invention.
[Explanation of symbols]
1 antenna 2 BS digital tuner 3 demultiplexer (DEMUX)
4 AV decoder 11 OSD circuit 12 System controller 13 Non-volatile memory 15 CA module 15a IC card

Claims (4)

The program information included in the digital broadcast wave is taken out, means for selecting a program to be notified using the selection information registered by the user, and a message notifying the existence of the selected program to be notified is interrupted on the currently displayed screen. A digital broadcast receiving apparatus, comprising: displaying means for notifying even if the selected notification target program is not contracted, and displaying that the selected program is not contracted. Means for extracting program information contained in a digital broadcast wave and selecting a program to be notified using the selection information registered by the user, and means for displaying a message indicating the existence of the selected program to be notified on a screen at power-on A digital broadcast receiving apparatus configured to make a notification even when the selected notification target program is uncontracted and to indicate that the selected program is uncontracted. 3. The digital broadcast receiving apparatus according to claim 1, wherein the digital broadcast receiving apparatus is configured to display contracted party information extracted from the program information for the selected unsubscribed notification target program. apparatus. 4. The digital broadcast receiving apparatus according to claim 3, wherein a preview of the notification target program is executed based on a user operation, and the contractor information is displayed during the preview display of the notification target program. A digital broadcast receiving apparatus characterized by the above-mentioned.

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