JP3875370B2 - Television receiver with built-in viewing restriction function - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a television receiver having a program viewing restriction function, and particularly when a program viewing restriction is performed, a television receiver with a viewing restriction function that automatically displays program-related information in each program. Related to the machine.
[0002]
[Prior art]
As a method for restricting viewing of images that the child does not want to show such as violent images and obscene images, for example, a method using a so-called V-chip function is known.
[0003]
In other words, rating information representing the degree of program content on the transmission side is superimposed and transmitted on the video signal, and the rating information is read from the received program on the receiver side and preset in the receiver by the user. Compared with the level, if the read rating information exceeds the rating level preset in the receiver, the video is blocked (not viewable).
[0004]
During the video block function operation (while viewing is restricted), the received video is blocked by video processing such as video mute or mosaic. At this time, as shown in FIG. 5, for example, a display notifying that the video block function is being operated is displayed on the screen. FIG. 5 is a diagram showing an example of a screen in a conventional video block.
[0005]
The video block is protected by a password or the like in order to prevent it from being easily released by a child, and the video block is released by performing an operation such as password entry.
[0006]
In addition, during the video block function operation, the audio is usually muted at the same time. For this reason, in order to know what program is currently being received by the viewer in a state where the video is blocked by the viewing restriction function such as the V chip function as described above, an operation of releasing the blocking function or the like is required. Necessary.
[0007]
Incidentally Currently, various information related to the program to be broadcast, for example, superimposed on the video signal Sir bi scan to provide the viewer has been put into practical use. One example is the US Extended Data Service (XDS). This service superimposes and transmits information related to a currently broadcast program or a program to be broadcast in the 2nd field and line 21 in a video signal. Mainly, the program name, program type, etc. Information is transmitted. Of course, the rating information can be superimposed and transmitted.
[0008]
The transmitting side (broadcasting station) uses this XDS to transmit rating information indicating the extreme degree of the contents of the program in addition to general information relating to the currently broadcast program or the program to be broadcast in the future. On the receiver side, the rating information is read from the received program, compared with the rating level preset in the receiver by the user, and the read rating information is preset in the receiver. When the rating level is exceeded, video block processing is performed.
[0009]
In XDS, the program information can be decoded and displayed on the screen according to the operation of the receiving user, that is, by turning on the XDS display function. Even during the operation of the video block function, the user can display information related to the program in the block by turning on the XDS display function. However, this requires an operation to turn on the XDS display function.
[0010]
As described above, in the conventional method, when the video is blocked, in order to obtain the contents of the program or information related to the program, an operation of releasing the video block function or turning on the XDS display function is required. .
[0011]
For this reason, for example, when the viewer makes a judgment based on the program name or the like and decides whether or not to release the video block function, the operation for temporarily releasing the video block function or turning on the XDS display function, etc. Therefore, the determination must be made after obtaining the contents of the program or information (rating information) on the program, and there is a problem that the operation is troublesome.
[0013]
[Problems to be solved by the invention]
As described above, in the conventional method, when the video content is blocked, when trying to obtain the contents of the program or various information about the program, the video block function is canceled or the XDS display function is turned on. it is necessary, there is a problem (disadvantage) that it is inconvenient.
[0014]
The present invention has been Kunasa base to correspond to the above-mentioned circumstances, when that image is blocked by the parental control function (image blocking), without visual listener performs a troublesome operation, the program-related information it is an object to provide a viewing restriction function built tele vision receiver which can obtain.
[0015]
[Means for Solving the Problems]
Parental control function built tele vision receiver with the first aspect is
Data extraction means for extracting rating information representing the degree of extremeity of the program and program related information including the program name of the program superimposed on the video signal of the currently received program ;
Rating setting means for setting the rating of the program to be blocked,
Rating decoding means for comparing the rating level included in the rating information extracted by the data extraction means with the rating level set by the rating setting means,
Video blocking means for blocking the video according to the result of decoding by the rating decoding means;
Program related information decoding means for decoding program related information including the program name extracted by the data extracting means;
Display means having a function of displaying program related information decoded by the program related information decoding means on a screen;
In conjunction with the video block operation by the video block means, the display means controls on / off display of the program related information, and when the video block operation is performed by the video block means Control means for turning on the program-related information display function of the display means and turning off the program-related information display function of the display means when the video block operation is not performed by the video block means. It is a feature.
[0016]
The parental control function built tele vision receiver according the invention described in claim 2, in viewing restriction function built television receiver according to claim 1, wherein the rating setting means, rating level set in advance by the user The rating decoding means compares the rating level extracted by the data extraction means with the rating level stored in the rating setting means.
[0017]
Parental control function built tele vision receiver according the invention described in claim 3 is the parental control function built television receiver according to claim 1, rating level extracted by said data extracting means, the rating setting If the rating level set by the means is higher, the video block means performs a video block operation, and the control means turns on the program related information display function of the display means. ,
Parental control function built tele vision receiver according the invention described in claim 4 is the parental control function built television receiver according to claim 1, rating level extracted by said data extracting means, the rating setting The video block means does not perform the video block operation when the rating level is lower than the rating level set by the means, and the control means turns off the program related information display function of the display means. is there.
[0019]
According to the first to fourth aspects of the present invention, when the video block operation is performed by the video block unit, the control unit turns on the program related information display function of the display unit, and the display unit displays the program related information. Is controlled so that is displayed on the screen. On the other hand, when the video block operation is not performed by the video block means, the control means turns off the program related information display function of the display means and performs control so that the program related information is not displayed on the screen by the display means. Do. Thus, while it is blocked image by viewing restriction function, without performing the operation user any, as needed, that Do is possible to automatically display the program-related information of the program on the screen .
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of a television receiver with a viewing restriction function according to the present invention.
[0021]
The television receiver with a viewing restriction function in FIG. 1 includes an antenna 1, a tuner / IF circuit 2, a video signal processing circuit 3, a display processing circuit 4, a CRT 5, a data extraction means 6, a rating decoding means 13, a video block means 14, The rating setting means 15, the program related information decoding means 16, the display means 17, and the control means 18 are configured.
[0022]
The data extraction means 6 extracts data of program-related information such as rating information and program name, which represents an extreme degree of the program superimposed on the video signal received and demodulated by the antenna 1 and the tuner / IF circuit 2. Rating setting means 15 sets the rating of the program to be blocked. The rating decoding means 13 decodes the received rating information (rating level) and compares it with the rating level set by the user from the rating setting means 15. The video block means controls the display processing circuit 4 according to the result of the decoding (comparison) by the rating decoding means 13 and blocks the display of the video on the CRT 5.
[0023]
The program related information decoding means 16 decodes the program related information such as the received program name. The display means 17 supplies the program related information decoded by the program related information decoding means 16 to the display processing circuit 4 and displays it on the screen of the CRT 5. The control means 18 controls on / off of the display of the program related information by the display means 17 in conjunction with the video block operation by the video block means 14.
[0024]
Next, the viewing restriction operation of the television receiver with a viewing restriction function configured as described above will be described.
[0025]
The rating decoding means 13 compares the rating level set by the user from the rating setting means 15 with the rating level supplied from the data extraction means 6, and the received rating (supplied from the data extraction means 6). If the level is higher, the video block means 14 is controlled to block the video display on the CRT 5. At this time, the control means 18 that has detected the video display block controls the display means 17 to supply the program related information decoded by the program related information decoding means 16 to the display processing circuit 4, and on the screen of the CRT 5. To display.
[0026]
On the other hand, as a result of comparing the rating level set by the user from the rating setting means 15 and the rating level supplied from the data extraction means 6, the received rating level is lower than the rating level set by the user . In this case, the rating decoding means 13 controls the video block means 14 to release the video display block. At this time, for example, the control unit 18 that detects the release of the video display block controls the display unit 17 to supply the program related information decoded by the program related information decoding unit 16 to the display processing circuit 4. To stop.
[0027]
As described above, the program related information is displayed on the screen of the CRT 5 while the viewing restriction function is operating and the video is blocked. Then, the viewer can easily determine whether or not to release the video block function by referring to the program related information displayed on the screen and determining from the program name or the like.
[0028]
FIG. 2 is a block diagram showing the configuration of the television receiver with a viewing restriction function according to the present invention in FIG. 1 in a form closer to the actual circuit configuration.
[0029]
The television receiver with a viewing restriction function in FIG. 2 includes an antenna 1, a tuner / IF circuit 2, a video signal processing circuit 3, a display processing circuit 4, a CRT 5, a data extracting means 6, a CPU 7, an OSD circuit, a ROM 9, a RAM 10, and a nonvolatile memory. Memory 11 and selection key 12.
[0030]
The video signal received and demodulated by the antenna 1 and the tuner / IF circuit 2 is supplied to the video signal processing circuit 3 and is also supplied to the data extraction means 6 and transmitted by the XDS data (rating level). ) And program-related information are extracted. The extracted raid information is compared with the rating level stored in the nonvolatile memory 11 in the CPU 7. The non-volatile memory 11 stores in advance the rating level set by the viewer using the selection key 12.
[0031]
If the rating information (rating level) received (supplied from the data extraction means 6) is higher than the rating level set in the non-volatile memory 11, the CPU 7 displays By controlling the processing circuit 4, the display video signal (television signal) reproduced from the received video signal is cut, and the supply to the CRT 5 is blocked (video block).
[0032]
At this time, the CPU 7 decodes the program-related information supplied from the data extracting means 6 and performs the video block operation. At the same time, the OSD circuit 8 generates a display signal and passes through the display processing circuit 4 (control). The program related information is supplied to and displayed on the CRT 5.
[0033]
Performing the other hand, the received rating information (rating level), if Tsu der rating level below that set in the nonvolatile memory 11, or the user changes and the rating level, the operation such as video block operation canceled In such a case, the CPU 7 controls the display processing circuit 4 to cancel the video block operation.
[0034]
At this time, the video block operation is canceled and at the same time, the supply and display of the program related information to the CRT 5 is stopped.
[0035]
The above operation is performed mainly by the CPU 7, and the flow of processing of the CPU 7 in the above operation is shown in FIG. FIG. 3 is a flowchart showing the operation of the CPU 7.
Hereinafter, the viewing restriction function (video block function) in the present invention will be briefly described with reference to FIG.
[0036]
Now, by the user, when the image block function is turned on, CPU 7 is a rating level stored in the nonvolatile memory 11 is set Ri goodness the selection key 12, supplied from the data sampling means 6 Rating If the rating level supplied from the data extraction means 6 is higher, video block processing is performed (steps S1, S2, and S3), and program related information display on the CRT 5 is turned on (step). S4).
[0037]
On the other hand, by the user, a state in which video block function is turned off (step S1, S5), or, toward the rating level supplied from the data sampling means 6, is set Ri good selection key 12 nonvolatile memory 11 If the rating level is less than or equal to the stored rating level (steps S1, S2, S5), if the video block operation is in progress, the video block operation is canceled and the program related information display on the CRT 5 is turned off (steps S5, S6) , S7).
[0038]
FIG. 4 shows an example of a display screen of the CRT 5 during the video block operation in the embodiment of the present invention.
[0039]
When the video block processing is being performed, the user looks at the display screen as shown in FIG. 4 to view the program related information of the currently received program (in the figure, the broadcast station name, program name, and The program type can be easily obtained without any operation.
[0040]
In addition, a user (for example, an adult) who has a right to cancel the viewing restriction function can cancel the video block function as necessary by referring to the program related information.
[0041]
【The invention's effect】
As described above, according to the present invention, while the video is blocked by the viewing restriction function, the program related information which is the contents of the program or various information related to the program without any operation by the viewer. Can be automatically displayed on the screen.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating an embodiment of a television receiver with a viewing restriction function according to the present invention.
FIG. 2 is a block diagram showing FIG. 1 in a form closer to an actual circuit configuration.
FIG. 3 is a flowchart showing the operation of a CPU.
FIG. 4 is a diagram showing an example of a display screen during a video block operation according to the present invention.
FIG. 5 is a diagram illustrating an example of a display screen during a conventional video block operation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Antenna 2 ... Tuner / IF circuit 3 ... Video signal processing circuit 4 ... Display processing circuit 5 ... CRT
6 ... Data extraction means 13 ... Rating decoding means 14 ... Video block means 15 ... Rating setting means 16 ... Program related information decoding means 17 ... Display means 18 ... Control means

Claims (4)

Data extraction means for extracting rating information representing the degree of extremeity of the program and program related information including the program name of the program superimposed on the video signal of the currently received program ;
Rating setting means for setting the rating of the program to be blocked,
Rating decoding means for comparing the rating level included in the rating information extracted by the data extraction means with the rating level set by the rating setting means,
Video blocking means for blocking the video according to the result of decoding by the rating decoding means;
Program related information decoding means for decoding program related information including the program name extracted by the data extracting means;
Display means having a function of displaying program related information decoded by the program related information decoding means on a screen;
In conjunction with the video block operation by the video block means, the display means controls on / off display of the program related information, and when the video block operation is performed by the video block means Control means for turning on the program related information display function of the display means, and turning off the program related information display function of the display means when the video block operation is not performed by the video block means. A TV receiver with a built-in viewing restriction function. The rating setting means includes storage means for storing a rating level preset by a user,
2. The television receiver with a viewing restriction function according to claim 1, wherein the rating decoding means compares the rating level extracted by the data extraction means with the rating level stored in the rating setting means. Machine. If the rating level extracted by the data extracting means is higher than the rating level set by the rating setting means,
The video block means performs a video block operation,
2. The television receiver with a viewing restriction function according to claim 1, wherein the control means turns on a program related information display function of the display means. When the rating level extracted by the data extraction unit is equal to or lower than the rating level set by the rating setting unit, the video block unit does not perform the video block operation, and the control unit is related to the program of the display unit. The television receiver with a viewing restriction function according to claim 1, wherein the information display function is turned off.

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