JP2002290856A - Digital television broadcasting receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital television broadcast receiver which can display only information of a data broadcast that a viewer requires in information sent by data broadcasting. SOLUTION: The digital television broadcast receiver is equipped with a means which receives a data broadcast attached to a channel-selected program, a means which extracts only information related to keyword information previously registered in a memory, and a means which displays only the extracted information on a screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a digital television broadcast receiver.

[0002]

2. Description of the Related Art In a multi-channel digital satellite broadcasting system, such as BS digital broadcasting, which has recently started broadcasting, data broadcasting linked to the content of a program being broadcast may be transmitted. In a program accompanied by such a data broadcast, when a viewer selects a data broadcast display mode using a remote controller or the like attached to the receiver, a plurality of data broadcast selection screens are usually displayed, and the corresponding data broadcast selection screen is displayed. As the viewer selects items, the target information can be viewed.

As described above, in order to display target information, it is necessary to go through a process of selecting an item in a plurality of stages.
You will see information that you do not need. In addition, since unnecessary information is displayed in the process of selecting items by the viewer, there is a problem that the video of the original program is difficult to see.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a digital television broadcast receiver capable of displaying only data broadcast information required by a viewer among information transmitted by data broadcast. The purpose is to provide.

[0005]

A first digital television broadcast receiver according to the present invention comprises: means for receiving a data broadcast accompanying a selected program; And a means for extracting only information related to the keyword information registered in the memory in advance, and a means for displaying only the extracted information on the screen.

A second digital television broadcast receiver according to the present invention is a means for receiving a data broadcast associated with a selected program, and selects a valid one for a user from keyword information registered in a memory in advance. Means for extracting only information related to the keyword information selected by the user from the information included in the received data broadcast, and means for displaying only the extracted information on the screen. It is characterized by the following.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a digital television broadcast receiver.

A radio wave from a satellite or a broadcasting station is sent to a tuner 2 via an antenna 1, where high-frequency processing and demodulation are performed. The output from the tuner 2 is sent to the DEMUX circuit 3, where the packet is decoded.

In the DEMUX circuit 3, a packet is
MPEG data, which is the program content itself, and auxiliary information such as data broadcast and program guide information are separated. DEM
The MPEG data separated by the UX circuit 3 is AV data
It is sent to the decoder 4. Ancillary information such as data broadcast and program guide information separated by the DEMUX circuit 3 is sent to the system controller 20.

In this example, the system controller 20 includes an electrically rewritable nonvolatile memory 21 such as an EEPROM and a volatile memory 22 such as a RAM. The nonvolatile memory 21 stores a program, keyword information described later, and the like.

The system controller 20 has a DEMUX
The auxiliary information sent from the circuit 3 is stored in the volatile memory 22. A remote controller signal from the remote controller transmitter 12 is input to the system controller 20 via the remote controller light receiver 13.

The system controller 20 includes a tuner 2
And information for channel selection to the DEMUX circuit 3.
Further, the system controller 20 sends an OSD control signal for causing the CRT 8 to display on-screen a data broadcast, a program guide (EPG), various operation screens, and the like to the OSD display circuit 14. The OSD display circuit 14 generates display data (OSD screen data) of the program guide and various operation screens, and sends them to the multiplexer (synthesis circuit) 6 as OSD signals.

The AV decoder 4 demodulates the MPEG data sent from the DEMUX circuit 3. AV decoder 4
The video signal obtained by the above is sent to the multiplexer 6 via the video processing circuit 5. The multiplexer 6 superimposes the display data sent from the OSD display circuit 14 on the video data output from the video processing circuit 5 and sends it to the video output circuit 7. The video signal output from the video output circuit 7 is sent to the CRT 8.

The audio signal obtained by the AV decoder 4 is sent to a speaker 11 via an audio processing circuit 9 and an audio output circuit 10.

When displaying a data broadcast, the digital television broadcast receiver according to this embodiment uses only the information related to the keyword information from the received data broadcast based on the keyword information registered in the nonvolatile memory 21. From the CRT 8 via the OSD display circuit 14, the multiplexer 6, and the video output circuit 7.

FIG. 2 shows an example of a keyword setting screen.

At the time of factory shipment, a list of keyword information registered in the nonvolatile memory 21 is displayed on the keyword setting screen.

A check box is provided next to each keyword information, and the user checks a check box corresponding to keyword information related to information to be displayed among information transmitted by data broadcasting. Put in. The checked keyword information is treated as valid keyword information. At this time, the user may check a plurality of pieces of keyword information. When a check is made for a plurality of pieces of keyword information, information related to each piece of keyword information is extracted from the received data broadcast and displayed.

Note that keyword information other than the keyword information registered at the time of shipment from the factory can be registered by a user operation. For example, the input window is displayed, and the user is allowed to input a character string. There is a method to make it specified.

Note that the data broadcasting display method is also described below.
It is preferable that the user make the setting. The contents of the display method include the display position, display range and size,
There are scroll display or switching display.

FIG. 3 shows a data broadcast display processing procedure by the digital television broadcast receiver.

When the power is turned on (step 1), a broadcast wave receiving operation is performed (step 2). If a data broadcast exists (step 3), a data broadcast is acquired (step 4). Further, the keyword information that is checked is read out of the keyword information registered in the nonvolatile memory 21 (step 5).

Then, information related to the read keyword information is extracted from the information included in the obtained data broadcast (step 6). Then, the extracted information is displayed according to the set display method (step 7).

FIG. 4 shows an example in which, when a marathon program accompanied by data broadcasting is selected and player information is selected as keyword information, player information included in the data broadcasting is scroll-displayed. Is shown.

FIG. 5 shows an example in which, when a program accompanied by data broadcasting is selected and the weather forecast is selected as the keyword information, the nationwide weather forecast is switched and displayed at the lower left position.

[0027]

According to the present invention, it is possible to display only the data broadcast information required by the viewer among the information transmitted by the data broadcast.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a digital television broadcast receiver.

FIG. 2 is a schematic diagram showing an example of a keyword setting screen.

FIG. 3 is a flowchart showing a data broadcast display processing procedure by the digital television broadcast receiver.

FIG. 4 is a schematic diagram showing a display example of a data broadcast.

FIG. 5 is a schematic diagram showing another display example of a data broadcast.

[Explanation of symbols]

 Reference Signs List 20 system controller 21 non-volatile memory 22 volatile memory

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) H04N 7/03 7/035

Claims (2)

[Claims] 1. A means for receiving a data broadcast associated with a selected program, extracting only information related to keyword information registered in a memory in advance from information included in the received data broadcast. And a means for displaying only extracted information on a screen. 2. A means for receiving a data broadcast accompanying a selected program; a means for allowing a user to select a valid one from keyword information registered in a memory in advance; A means for extracting only information related to the keyword information selected by the user, and a means for displaying only the extracted information on a screen. .