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A device of the digital TV terminal for TS stream reuse

A digital TV terminal and circuit technology, applied in color TV parts, TV system parts, TV and other directions, can solve the problem of inability to realize the simultaneous application function of two or more channels

Inactive Publication Date: 2007-08-01
CHINA GREATWALL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, digital TV terminals can only apply (such as playing or recording) one program, and cannot realize the simultaneous application function of two or more programs, such as recording another program while playing one program

Method used

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  • A device of the digital TV terminal for TS stream reuse

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] As shown in Fig. 1 and Fig. 2, a kind of device of the present invention realizes TS stream multiplexing in the digital TV terminal, comprises:

[0031] Multiple tuners for outputting multiple TS streams;

[0032] An application circuit for applying the TS stream;

[0033] The TS stream multiplexing chip is arranged between the tuner and the application circuit, and is used to extract the required multiple programs from the input multiple TS streams and multiplex the multiple programs into a new multiple program TS stream;

[0034] The control unit is connected with the TS stream multiplexing chip and is used to input the PID and control instructions of the required multi-channel programs to it.

[0035] The TS stream multiplexing chip includes:

[0036] A plurality of filtering and information extraction modules are respectively connected to each tuner, the...

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PUM

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Abstract

The related device for multiplexing TS flow on DTV terminal comprises: multiple HF heads to output multi-path TS flow, an application circuit for TS flow, a TS flow multiplexing chip set between former head and circuit to extract menu from TS flow and multiplex into new one-path multi-menu TS flow, and a control unit connected with last chip to input PID and control command. This invention realizes synchronous application for multi-path menu.

Description

【Technical field】 [0001] The design of the present invention relates to the technical field of digital television, in particular to a device for realizing multiplexing of TS transport streams at a digital television terminal. 【Background technique】 [0002] In digital TV, all video, audio, text, pictures, etc. are digitized and converted into data, and packaged according to the MPEG-2 standard to form a fixed-length (188 bytes or 204 bytes) transport packet , and then multiplex these data packets to form a TS stream (transport stream), which is sent to the channel after channel coding and modulation; at the receiving end, on the contrary, after demodulation, channel decoding and forward After error correction, the video and audio ES streams (basic data streams) and data and control information are respectively output through the transmission demultiplexer, and then sent to the digital TV display system and audio playback system respectively after passing through the video an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N5/00H04N21/433H04N21/434
Inventor 石明林俊倪国平邓德华张锐李文俊陈悦
Owner CHINA GREATWALL TECH GRP CO LTD
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