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Digital broadcast receiving apparatus

A technology of digital broadcasting and receiving devices, applied in broadcasting receiving circuits, simultaneous broadcasting of multiple pieces of information, specific information broadcasting systems, etc., can solve problems such as not being able to fully understand the content of data broadcasting

Inactive Publication Date: 2006-01-25
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the user cannot fully understand the content of the data broadcasting without looking at the monitor screen.

Method used

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Examples

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Comparison scheme
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no. 1 example

[0031] A first embodiment of the present invention is described below.

[0032] FIG. 1 is a block diagram showing the structure of a vehicle-mounted broadcast receiving apparatus according to a first embodiment of the present invention.

[0033] The vehicle-mounted broadcast receiving device includes a control unit 1, which controls the overall operation of the device. The device also includes a television (TV) antenna 2 , a TV channel selection unit 3 and a transport stream (TS) decoder 4 .

[0034] The TV channel selection unit 3 selects radio waves of a preselected TV broadcast station from, for example, radio waves of terrestrial digital TV broadcasts received by the TV antenna 2 . The TS decoder 4 separates a signal (MPEG2 transport stream) generated by demodulating the selected radio wave into a video stream, a voice stream, and a data broadcast stream.

[0035] The vehicle broadcast receiving device also includes a video decoder 5 , a voice decoder 6 , a data storage ...

no. 2 example

[0078] A second embodiment of the present invention is described below. For the same constituents as those of the first embodiment shown in FIG. 1, description thereof is omitted.

[0079] FIG. 9 is a block diagram showing the structure of a vehicle-mounted broadcast receiving device according to a second embodiment of the present invention. This device does not include the character recognition dictionary memory 22 and the pattern recognition unit 23 shown in FIG. 1 .

[0080] The operation of the in-vehicle broadcast receiving device according to the second embodiment will be described below.

[0081] When the user operates the input unit 15 to set the device in the voice reading mode, the control unit 1 controls the data broadcast decoder 8 to provide the reading component extraction unit 21 with the BML file "news" contained in the data broadcast stream stored in the data storage unit 7. .bml" (see Figure 3) and binary table file "news.tbl" (see Figure 4).

[0082] Afte...

no. 3 example

[0092] A third embodiment of the present invention is described below. For the same constituents as those of the first embodiment shown in FIG. 1, description thereof is omitted.

[0093] Fig. 12 is a block diagram showing the structure of a vehicle-mounted broadcast receiving device according to a third embodiment of the present invention. This device does not include the reading component extraction unit 21 shown in FIG. 1, and in addition, a pattern recognition unit 31 is used instead of the pattern recognition unit 23 shown in FIG.

[0094] The data broadcast decoder 8 of this in-vehicle broadcast receiving device has a function of decoding the data broadcast stream read from the data storage unit 7 to generate image data of a complete output screen and then supplying it to the pattern recognition unit 31 . The image data of the complete output screen is an image of the output screen of the display unit 11, as shown in FIG. 2 .

[0095] The pattern recognition unit 31 ha...

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PUM

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Abstract

The present invention provides a digital broadcast receiving apparatus, characterized by comprises a receiving and selecting unit (3) which receives and selects a digital broadcast wave, an acquisition unit (4, 8) which decodes a data broadcast stream included in the received and selected digital broadcast wave and acquiring character data and image data for data broadcast, a memory unit (22) which stores graphics patterns and reading data of the graphics patterns, a unit (23) which collates the acquired image data with information stored in the storage memory (22) and retrieves reading data of graphics patterns included in the image data, a unit (24) which creates sentence data for voice reading based on the acquired character data and the retrieved reading data, and a unit (25) which converts the created sentence data into voice data.

Description

technical field [0001] The invention relates to a digital broadcast receiving device with the function of receiving data broadcast. Background technique [0002] In the prior art of digital television broadcasting, in addition to video and voice data, a transmitting station transmits data for displaying news, weather forecast, etc. on a monitor in accordance with user operations. The sending station sends data broadcasts. This technique is disclosed in, for example, Japanese Patent Application Laid-Open No. 10-304325. [0003] Data broadcasting can be received by both a home broadcast receiving device and a vehicle-mounted broadcast receiving device. Data broadcasting is envisioned as data that can be displayed on the monitor screen of the device; therefore, when the user is driving and cannot watch the monitor screen, he or she will not be able to understand the content of the data broadcasting. [0004] In order to solve the above problems and enable users to understand...

Claims

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Application Information

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IPC IPC(8): H04N5/445G10L13/02B60R11/02G10L13/00H04B1/16H04N7/025H04N7/088
CPCH04H20/28H04H60/68G10L13/043H04H60/27H04H40/18H04N5/44513H04N21/41422H04N21/4348H04N21/435H04N21/439H04N21/440236H04N21/84H04N21/8543G10L13/00H04N21/47
Inventor 宇井俊司
Owner KK TOSHIBA
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