JP3650040B2 - Broadcast receiver - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a broadcast receiving apparatus that receives broadcast waves and wired broadcast signals.
[0002]
[Prior art]
For example, in a digital broadcast receiving system using a satellite, a video / audio signal is compressed using a digital signal compression technique, and a stream (transport stream) in which video / audio digital signals of a plurality of programs are time-division multiplexed is used as a transponder. Broadcasts via (satellite repeater). On the other hand, a broadcast receiving apparatus for receiving such a digital broadcast selects one of a plurality of digital broadcast transponders received through a dedicated antenna by a tuner, and among the plurality of channels included in the one transponder. One is 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, there is a user setting function for the user to make various settings or register a user-specific area number or the like in order to normally receive the broadcast wave from the satellite. . In addition, a viewing history display function is also provided such that the purchase history of paid programs is accumulated and displayed as a list if necessary. In addition to these functions, when the receiver stops normal operation due to an operational error, etc., the user settings are temporarily restored, and the viewing history is taken into account when the receiver is transferred or discarded. Is provided with a function of deleting or initializing.
[0004]
[Problems to be solved by the invention]
However, if information is lost due to initialization or erasure by the user, there may be inconvenience in investigating the cause of the malfunction of the receiver and the trouble related to the viewing fee.
[0005]
In view of the above circumstances, the present invention is a broadcast receiving apparatus that does not cause inconvenience in investigating the cause of the failure of the receiver to operate normally or trouble related to viewing fees even if the user erases history information, etc. The purpose is to provide.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the broadcast receiving apparatus of the present invention includes information storage means for storing user setting information and / or viewing history information in the first storage means and the second storage means, and the user's information Information erasure means for erasing information in the first storage means when an operation related to information erasure is performed, and information from the first storage means is read and output when the first operation is performed. On the other hand, there is provided an information reading means for reading and outputting information from the second storage means when a second operation capable of controlling the service mode is performed.
[0007]
With the above configuration, when an operation related to erasure of the information is performed by the user, the information stored in the first storage unit is erased, and the user setting information and the viewing history information are apparently viewed by the user. Even if it is deleted, it remains as information to be presented when the second operation is performed. When transferring or disposing of the transmitting / receiving device, the user deletes this information and others It is possible to achieve both the function of preventing the user from seeing the problem and the conflicting function of leaving the service information for the investigation of the trouble again.
[0008]
The information storage means stores all of the user setting information and / or viewing history information in the first storage means, and stores a part of the user setting information and / or viewing history information in the second storage means. You may be comprised so that it may memorize | store.
[0009]
The broadcast receiving apparatus according to the present invention also includes information storage means for storing user setting information and / or viewing history information in the first storage means and the second storage means, and operations related to erasure of the information by the user. An information copy / erase control means for reading the information stored in the first storage means and copying it to the second storage means and then erasing the information in the first storage means, and a first operation Is read out and output from the first storage means, and when a second operation capable of controlling the service mode is performed, the information from the second storage means is read out. And an information reading means for outputting.
[0010]
Even in the above configuration, when the user performs an operation related to erasing the information, the information stored in the first storage unit is erased, and the user setting information and the viewing history information are erased in terms of appearance from the user. Even if this happens, the information is transferred to the second storage means and remains as information to be presented when the second operation is performed. The function of preventing the user from erasing the information and seeing it by others and the conflicting function of leaving the service information for re-examination of trouble can be achieved.
[0011]
The information recording copy / erase control means may copy a part of the information stored in the first storage means to the second storage means.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1. Here, a case where a user views a digital broadcast is illustrated.
[0013]
An antenna 1 shown in FIG. 1 is arranged outdoors in a predetermined direction, and receives a digital broadcast signal sent from a BS. The antenna 1 generally includes a frequency converter, and supplies a received / frequency converted signal to the tuner 2.
[0014]
The tuner 2 extracts a signal having 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. Further, the tuner 2 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, thereby demodulating the selected digital modulation signal and outputting a transport stream.
[0015]
The demultiplexer (DEMUX) 3 converts the transport stream received from the tuner 2 into an MPEG2 (Moving Picture Experts Group 2) video transport packet, an audio transport packet, and a PSI / SI (Program Specific Information / Service Information). To separate. The demultiplexer 3 supplies the video transport packet and the audio transport packet to the AV decoder 4 and supplies the PSI / SI to the CPU 13. As described above, a plurality of channels are multiplexed in the transport stream, and the process for selecting an arbitrary channel from among the channels is determined based on which arbitrary channel from the PSI is included in the transport stream. It becomes possible by taking out data such as whether the packet ID is multiplexed. In addition, transport stream selection (transponder selection) can also be performed based on PSI information.
[0016]
The AV decoder 4 includes a video decoder that decodes video transport packets and an audio decoder that decodes audio transport packets. The video decoder decodes the input variable length code to obtain a quantization coefficient and a motion vector, and performs inverse DCT conversion, motion compensation control based on the motion vector, and the like. The audio decoder decodes the input encoded signal to generate audio data. The video data generated by the decoding is output to the video processing circuit 5, and the audio data is output to the audio processing circuit 6.
[0017]
The video processing circuit 5 receives the video data from the AV decoder 4, performs D / A conversion, and converts it into, for example, a composite signal in the NTSC format. The audio signal processing circuit 6 receives the audio data output from the AV decoder 4, performs D / A conversion, and generates a right (R) sound analog signal and a left (L) sound analog signal. The video output circuit 7 and the audio output circuit 8 include an output resistor, an amplifier, and the like. The AV output terminal 9 is provided with an output unit (a set of left and right audio output terminals and a video output terminal), and a monitor 16 having a CRT and a speaker is connected to the output unit by a video / audio code 17.
[0018]
The OSD (On Screen Display) display circuit 12 outputs to the adder 20 bitmap data based on character information and graphic information instructed to be output from the CPU 13. The adder 20 incorporates the bitmap data into the video. In addition to the electronic program guide (EPG: Electronic Program Guide) based on the service information included in the PSI received by the CPU 13, the OSD display circuit 12 displays an operation guide screen and operations on the operation guide screen. The display of the setting information of the user to be displayed, viewing history information, a message indicating that the program to be viewed is charged, etc. are realized.
[0019]
The IC card 21A stores key information for enabling viewing of pay programs, purchase history information of PPV (pay per view) programs to be charged for each program, and the like. Further, the IC card connector 21 performs various information writing processing and reading processing between the CPU 13 and the IC card 21A. For example, when a user performs a purchase operation in a screen display state asking whether or not to view a pay program, the CPU 13 sends charging information to the IC card 21A through the IC card connector 21 and sends the purchased program to the user. Process to present. If the purchase is not made, the program presentation is stopped and the billing information is not sent to the IC card 21A. Billing information when a pay program is purchased in this way is stored in the IC card 21A, and the broadcaster charges the user based on this information.
[0020]
The modem 22 operates in a dial-up connection when periodically transmitting billing information.
[0021]
The remote control transmitter 10 is a transmitter for sending a command to the broadcast receiving device 30. The remote control transmitter 10 is provided with a power key, a channel designation key, a direction key, a determination key, and the like. When keys provided on the remote control transmitter 10 are operated, signal light (remote control signal) indicating a command corresponding to the keys is transmitted from a light emitting unit (not shown). The remote control light receiver 11 receives the signal light, converts it into an electric signal, and gives it to the CPU 13.
[0022]
User setting information and viewing history information are stored in the first memory (for example, EEPROM) 14A and the second memory (for example, EEPROM) 14B. That is, the user setting information and the viewing history information are written together in the first memory 14A and the second memory 14B by the writing process of the CPU 13. When an instruction to display user setting information or viewing history information is given by operating the remote control transmitter 10 or the like, the CPU 13 reads the information from the first memory 14A and instructs the OSD display circuit 12 to display the image. Further, when the user setting information or viewing history information is instructed to be deleted by the user's operation by the remote control transmitter 10 or the like, or when the initialization instruction is instructed, the CPU 13 executes the erasing process only on the first memory 14A. The erasing process is not performed on the second memory 14B.
[0023]
When the service switch 23 is operated, the CPU 13 executes a service mode process. In this service mode, operation can be performed only by a remote control signal from a dedicated remote control transmitter that can be obtained only by a specific person. When the repair person commands the presentation of user setting information or the like with the dedicated remote control transmitter, the CPU 13 in the service mode reads the information from the second memory 14B and instructs the OSD display circuit 12 to display the image.
[0024]
As a result, even if the user deletes the setting information or the viewing history information when a failure occurs in the broadcast receiving device 30, the information is stored in the second memory 14B, and the repair person sets the service switch 23. By turning on and performing a predetermined operation, the user setting information and the viewing history information can be obtained from the second memory 14B, so that the cause of the failure can be easily checked.
[0025]
In the above example, the repair person turns on the service switch 23 to perform a predetermined operation. However, if the service switch 23 is hidden from the user, a dedicated remote control transmitter is installed. The service mode can be set without using it, and it is possible to prevent a user other than the specific person from acquiring user setting information and viewing history information from the second memory 14B.
[0026]
In the above example, the same information is written in the first memory 14A and the second memory 14B. For example, in the viewing history information stored in the first memory 14A, the program title is also recorded. On the other hand, the viewing history information stored in the second memory 14B is different from the information written in the first memory 14A and the second memory 14B as long as the trouble such as trouble is not disturbed, such as not recording the program title. May be provided.
[0027]
In the above example, the first memory 14A and the second memory 14B hold the user setting information and the viewing history information before an operation such as erasure. However, the user setting only in the first memory 14A. Information and viewing history information are held, and when an operation such as erasure is performed, user setting information and viewing history information are transferred from the first memory 14A to the second memory 14B, and then the information in the first memory 14A is erased. The following procedure may be taken. Even in this case, when the display of user setting information or viewing history information is instructed by operating the remote control transmitter 10 or the like, the CPU 13 reads the information from the first memory 14A and displays the video display on the OSD display circuit 12. Instruct. In the display instruction of the user setting information in the service mode, the information is read from the second memory 14B, and the OSD display circuit 12 is instructed to display the video. In transferring user setting information and viewing history information from the first memory 14A to the second memory 14B, only a part of the first memory 14A is transferred to the second memory 14B to the extent that troubles such as troubles are not disturbed. You may make it perform the process to transfer.
[0028]
【The invention's effect】
As described above, according to the present invention, it is possible to realize that the user setting information and the viewing history information are left as service information even if it is apparently deleted from the user. When transferring or disposing of a broadcast receiving device, both the function to prevent the user from erasing this information and seeing it by others and the conflicting function of leaving service information for re-examination of trouble There is an effect that can be done.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a broadcast receiving apparatus according to an embodiment of the present invention.
[Explanation of symbols]
1 Antenna 2 Tuner 3 Demultiplexer (DEMUX)
4 AV decoder 10 Remote control transmitter 13 CPU
14A first memory 14B second memory 23 service switch

Claims (4)

Information storage means for storing user setting information and / or viewing history information in the first storage means and second storage means, and when an operation related to erasure of the information by the user is performed, Information erasing means for erasing information, and when the first operation is performed, the information from the first storage means is read and output, while the second operation capable of controlling the service mode is performed A broadcast receiving apparatus comprising: information reading means for reading and outputting information from the second storage means.   2. The broadcast receiving apparatus according to claim 1, wherein the information storage means stores all of the user setting information and / or viewing history information in the first storage means, and the user setting information and the history information in the second storage means. A broadcast receiving apparatus configured to store a part of viewing history information.   An information storage unit that stores user setting information and / or viewing history information in the first storage unit and the second storage unit, and a first storage unit when an operation related to erasure of the information is performed by the user. An information copy / erase control means for erasing information stored in the first storage means after reading out the stored information and copying it to the second storage means, and a first operation when the first operation is performed. Information reading means for reading and outputting information from the storage means, and for reading and outputting information from the second storage means when a second operation capable of controlling the service mode is performed. A broadcast receiving apparatus.   4. The broadcast receiving apparatus according to claim 3, wherein the information copy / erase control means copies a part of the information stored in the first storage means to the second storage means. .

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