JP2003250103A - Digital broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast receiver whereby a user can recognize it when a program organization is revised. <P>SOLUTION: A CPU 13 uses newest program information stored in a basic data section 14a of a nonvolatile memory 14 in generating an EPG picture and uses program organization revision information stored in a revision data section 14b to express revision. The expression representing the revision expresses a program name having been formerly in existence by using e.g. part of the right side of a display column of programs on the EPG picture. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital broadcast receiving apparatus for receiving digital broadcast.

[0002]

2. Description of the Related Art A digital broadcasting receiving apparatus for receiving digital broadcasting using satellites or terrestrial waves selects an arbitrary broadcasting wave from a plurality of broadcasting waves received through a dedicated antenna or a terrestrial antenna by a tuner. , Select any channel from the multiple channels included in the selected broadcast wave by demultiplexing, extract the digital signal of this selected channel, and decode it to output video / audio signals. .

By the way, in such digital television broadcasting, in addition to transmitting video and audio as in conventional analog broadcasting, program information and the like are also transmitted. The program information includes an EIT (Event Information) including a program name, program start time, program duration, program content information, and the like.
ion table), channel names, and broadcaster names, etc., SDT (Service Descr)
option table) and the like are included. EI
As for the T information, one week's worth of all channels are collectively transmitted every three hours, and when the date is changed, one day after eight days is additionally transmitted. Furthermore, the EIT information will be updated even when the program organization changes. On the receiver side, based on this information, EPG (Select) using the OSD (On Screen Display) function is performed.
The user can select a desired program from the multi-channel broadcasting by using the display function of "ronic Program Guide".

[0004]

[Problems to be Solved by the Invention] However, EPG
Since the screen is displayed based on the updated latest EIT information, when the program organization is changed, such as when the program is moved, the EPG screen that the user intended to view on the previously confirmed EPG screen is EPG screen. It has disappeared.

In view of the above circumstances, it is an object of the present invention to provide a digital broadcast receiving apparatus which allows a user to know when a program organization is changed.

[0006]

In order to solve the above-mentioned problems, a digital broadcast receiving apparatus of the present invention has means for extracting program information contained in a digital broadcast wave and already acquired program information newly acquired. Means for updating and storing the program information instead of the program information, and generating and storing information regarding the change in the program organization; and creating a program guide table based on the newly acquired program information and performing the program based on the information regarding the change. Means for making a change notation on the guide table.

With the above configuration, when the program organization is changed, the change guide is written on the program guide table, so that the user knows which program has been changed on the program guide. be able to.

Further, the digital broadcast receiving apparatus of the present invention includes means for taking out program information contained in the digital broadcast wave, updating and storing newly acquired program information in place of already acquired program information, and changing the program organization. And a means for creating and displaying a changed program list on the basis of the information about the change.

With the above configuration, the user can know which program has been changed from the changed program list.

Further, the digital broadcast receiving apparatus of the present invention includes means for taking out program information contained in a digital broadcast wave, updating and storing newly acquired program information in place of already acquired program information, and changing the program organization. It is characterized by further comprising means for generating and storing information regarding the above, and means for searching the movement of the program based on the above information regarding the change and displaying the search result.

With the above configuration, the program movement is searched, and when the movement destination is searched, the result is shown and shown, so that the user himself is relieved from the trouble of finding the movement destination of the program. Become. If the destination of the program is not searched, it can be determined that the program has been discontinued (deleted).

It is preferable to notify the user that a change has occurred in the program organization. According to this, the user can know the change of the program organization without depending on the program guide table or the like. To confirm the contents, the user may display the program guide table or the changed program list described above, or perform the search operation described above.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
5 to FIG. 5, the user is the BS here.
(Broadcasting Satellite) A case of viewing a digital broadcast is illustrated. FIG. 1 is a block diagram showing a digital broadcast receiving apparatus 30 of this embodiment, FIG. 2 is an explanatory view showing a process at the time of receiving EIT information, and FIG. 3 shows a process at the time of receiving EIT information due to a date change. FIG. 4 is an explanatory diagram shown, FIG. 4 is an explanatory diagram of an EPG screen reflecting a change in program organization, and FIG. 5 is an explanatory diagram illustrating a screen at the time of searching for changed program related information.

In FIG. 1, an antenna 1 is arranged outdoors in a predetermined direction, and receives a digital broadcast signal sent from a BS. This antenna 1
Is generally equipped with a frequency converter, and supplies the received / frequency-converted signal to the tuner 2.

The tuner 2 extracts a signal of a specific frequency from the high frequency digital modulated signal containing video / audio data. That is, a process of selecting one from a plurality of transponders for digital broadcasting is performed. Further, the tuner 2 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, etc., and demodulates the selected digital modulation signal to output a transport stream.

A demultiplexer (DEMUX) 3 converts the transport stream into MPEG2 (Mov).
ing Picture Experts Group
2) video stream, audio stream, and PSI / SI (Program Specific I)
nformation / Service Information
ation). The demultiplexer 3 receives the video stream and the audio stream from the AV decoder 4
Program information etc. included in PSI / SI supplied to the CPU
Supply to 13. The program information includes a program name, program start time, program duration, program content information and the like. It should be noted that a plurality of channels are multiplexed in the transport stream, and the process for selecting an arbitrary channel from these is performed by selecting which packet ID in the transport stream the arbitrary channel is from PSI / SI. It is possible by taking out the data such as whether or not it is multiplexed with. Also, the selection of the transport stream (selection of the transponder) can be performed based on the PSI / SI information.

The AV decoder 4 includes a video decoder for decoding a video stream and an audio decoder for decoding an audio stream. The video decoder decodes the input variable length code to obtain a quantized coefficient and a motion vector, and performs inverse DCT conversion and motion compensation control based on the motion vector. The audio decoder decodes the input coded signal to generate audio data. The video data generated by decoding is output to the video processing circuit 5, and the audio data is output to the audio processing circuit 6.

The video processing circuit 5 receives the video data from the AV decoder 4 and performs D / A conversion to convert it into, for example, a composite video signal. The audio processing circuit 6 receives the audio data output from the AV decoder 4 and receives the D / A
The conversion is performed to generate, for example, a right (R) sound analog signal and a left (L) sound analog signal.

The video output circuit 7 and the audio output circuit 8 are provided with output resistors and amplifiers. The AV output terminal 9 has an output section (a set of left and right audio output terminals, a video output terminal, etc.)
Is provided, and a monitor 16 including a picture tube 16a and a speaker 16b is connected to the output section by a video / audio code 17.

The OSD circuit 12 outputs to the adder 20 video data based on the character information and color information instructed by the CPU 13. The adder 20 performs a process of incorporating the video data into the received video data output from the AV decoder 4. With the OSD circuit 12, the EPG display based on the service information received by the CPU 13 can be performed.

The remote control transmitter 10 is a transmitter for sending a command to the broadcast receiving apparatus 30. When a key (not shown) provided on the remote control transmitter 10 is operated, a signal light (remote control signal) indicating a command corresponding to the key is sent 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.

Non-volatile memory (eg EEPROM etc.)
14 stores the latest program information and program organization change information for one week. In the memory management of the non-volatile memory 14, two areas of a basic data section 14a and a change data section 14b are set, the basic data section 14a is made to store the latest program information for one week, and the change data section 14b is stored. Stores program change information.

The CPU 13 performs the overall control of the digital broadcast receiving apparatus 30, and in particular, as the control according to the present invention, it executes various controls related to the change of the program organization. Hereinafter, such control will be described.

When the latest program information is acquired, the CPU 13 updates and stores the latest program information instead of the acquired program information stored in the basic data section 14a.
At this time, the latest program information and the acquired program information are compared, and as shown in FIG. 2, for example, if the program organization on the second day (9/2) has changed, the program organization change information ( A difference between the latest program information and the acquired program information) is generated and stored in the change data section 14b. To change the program schedule,
There are forms of program change, program addition, and program deletion. Attribute information (change, add,
It is better to add (delete). Further, it is preferable to add link information indicating which area of the basic data section 14a corresponds to the change in the program organization.

When the date changes, the program information (EIT) is added for one day after eight days, so that the update image in the basic data section 14a is 9/9 as shown in FIG. The program information of 1 is deleted, and 9/2 to 9/8 is advanced by one day, and the program information of 9/9 is newly added as the 8th day. As the actual control of the non-volatile memory 14, the area where the program information of 9/1 existed may be overwritten with the program information of 9/9 to manage the chronological order in the area. If the above-mentioned link information is added, it is possible to easily associate the program information of the basic data part 14a with the program organization change information of the change data part 14b when the date is changed, and reflect the changed contents in the EPG. The processing for doing can be done quickly. The program organization change information stored in the change data section 14b is deleted when the scheduled broadcast date of the original program has passed if the program was deleted or moved, and if the program was added,
It will be deleted when the scheduled broadcast date of the additional program has passed.

FIG. 4 (a) shows 10:00 am on September 1st.
It is the explanatory view which showed the EPG screen of September 2 displayed at the time. In the same figure (b), there is a program organization change after that, and it was displayed at PM 3:00 PM on September 1st. It is explanatory drawing which showed the EPG screen of the same time zone of 2 days. Here, in CH100, PM7: 00 to PM8:
Program A scheduled to be broadcast until 00 is extended by 1 hour, and as a result, program B scheduled to be broadcast from PM 8:00 to PM 9:00 on CH100 is PM1 on CH102.
It will be broadcast between 0:00 and 11:00 PM, and due to this, CH102 will be broadcast at 10:00 PM.
From PM to PM 12:00 PM
The program organization change when the broadcast time is shortened from 11:00 to 12:00 PM is illustrated.

The CPU 13 uses the basic data section 1 to create the EPG screen at 3:00 PM on September 1st.
The latest program information stored in 4a is used, and the program organization change information stored in the change data section 14b is used to indicate the change on the EPG screen. In the example shown in FIG. 4, the notation indicating this change is the notation indicating the originally existing program name using a part of the right side of the program display column.

Since the program change is written on the EPG screen as described above, the program B was supposed to be broadcast on CH100 from PM 8:00 to PM 9:00, but it will not be broadcast as scheduled. That program A is extended by 1 hour, program B is CH10
2 will be broadcast between PM 10:00 and PM 11:00, and P on CH102
The user can easily know that the program D scheduled to be broadcast between M 10:00 and PM 12:00 has been shortened to the broadcast time zone from PM 11:00 to PM 12:00.

Further, the CPU 13 can perform a process of searching a moving destination when the program moves.
The user, for example, on the EPG screen of FIG.
When it is desired to confirm the moving destination of the changed program B, for example, the up, down, left, and right direction keys of the remote control transmitter 10 are operated to place the cursor on the program column of the program B (change the color), and, for example, the enter key is operated. When such an operation is performed, the CPU 13 executes the search process for the program B and displays the search result screen. It should be noted that the search process may be performed on the receiving device side, for example, when the program organization change information is generated. By this search processing, it is possible to know whether the program has been changed, deleted, or added, and hold this as attribute information.

FIG. 5A is an explanatory view showing an example of the search result screen. When the user operates the "start search" button using the remote control transmitter 10 or the like, the CPU 13 causes the program organization change information (for example, program name, program duration, program content information) about program B stored in the change data section 14b. , Event_id, etc.)
Search all program data stored in a. Then, as shown in the figure, a list of programs determined to be related to the program B is displayed. If the program related to the program B is not searched, a message may be displayed as in "It seems that the program B has been deleted". With such a search process, it becomes possible to easily grasp the moving destination of the program even when the broadcast date / time is largely deviated or a change occurs over another channel. In the same channel, the program B, which is the same program, can be identified by the event_id. However, in other channels, even if the event_ids of the channels match, they are not the same program. No, the program name,
Based on the program duration, program content information, etc., it can only be said that the program is likely to be related to program B.

Further, when the program organization is changed (CP
When U13 detects the difference between the latest program information and the acquired program information), a message notifying that the program organization has been changed may be generated and displayed on the screen of the receiving device 30. At this time, a message such as "Do you want to display the changed contents? YES NO" is displayed. When "YES" is selected, the changed program list is created and displayed based on the program change information. May be. This changed program list is, for example, as shown in FIG.
The display form is as follows. Further, in this case, a search for detecting the moving destination of the program may be executed to indicate the moving destination in the same form as shown in FIG. Also, the message telling that the program organization has changed,
The display is not limited to the screen display, but may be transmitted to, for example, an email address registered in advance.

[0032]

As described above, with the digital broadcast receiving apparatus of the present invention, the contents of the change can be shown to the user when the program organization is changed. For example, in the previously confirmed EPG screen. It is possible to eliminate a situation in which the user is confused by the situation that the program that the user was thinking of watching disappears from the EPG screen at some time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a digital broadcast receiving apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a process when receiving program information.

FIG. 3 is an explanatory diagram showing a process when program information is received due to a date change.

FIG. 4 (a) is an explanatory diagram showing an EPG screen before changing the program organization, and FIG. 4 (b) is an EP after changing the program organization.
It is explanatory drawing which showed G screen.

5A is an explanatory diagram showing a result display screen when a program move destination is searched, and FIG. 5B is an explanatory diagram showing a list screen displaying a list of changed programs. is there.

[Explanation of symbols]

1 antenna 2 tuner 3 Demultiplexer (DEMUX) 4 AV decoder 12 OSD circuit 13 CPU 14 Non-volatile memory

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 7/035 F term (reference) 5C025 BA27 BA28 CA02 CA09 CB09 DA01 5C063 AA01 AB03 AB07 AC01 DA03 DA13 EB33 5K061 BB06 BB07 DD02 FF01 JJ06 JJ07

Claims (4)

[Claims] 1. Means for extracting program information included in a digital broadcast wave, means for updating and storing newly acquired program information instead of already acquired program information, and means for generating and storing information relating to a change in program organization. And a means for creating a program guide table on the basis of the newly acquired program information and for notating the change on the program guide table based on the information on the change. Broadcast receiver. 2. Means for extracting program information included in a digital broadcast wave, means for updating and storing newly acquired program information in place of already acquired program information, and means for generating and storing information relating to a change in program organization. And a means for creating and displaying a changed program list on the basis of the information on the change, the digital broadcast receiving apparatus. 3. Means for retrieving program information contained in a digital broadcast wave, means for updating and storing newly acquired program information in place of already acquired program information, and means for generating and storing information relating to a change in program organization. And a means for searching a movement of a program based on the information on the change and displaying a search result. 4. The digital broadcast receiving apparatus according to claim 1, further comprising means for notifying a user that a program organization has been changed. .