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Multi-program transport stream multiplexing device

A multi-channel program and multiplexing device technology, applied in image communication, selective content distribution, electrical components, etc., can solve problems such as inability to decode, and achieve the effects of improving stability, easy hardware implementation, and low coupling.

Active Publication Date: 2013-06-26
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transport stream must meet the constraints of T-STD, otherwise the receiving end of the system will not be able to decode it correctly

Method used

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  • Multi-program transport stream multiplexing device
  • Multi-program transport stream multiplexing device
  • Multi-program transport stream multiplexing device

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. This embodiment is only an embodiment of the present invention but not all implementations.

[0031] In this embodiment, the multi-channel program transport stream multiplexer and encoder are integrated into one chip through SOC technology to form a code multiplexing chip. Support four channels of program transport stream multiplexing, each program contains one video signal and one audio signal.

[0032] The overall structure of the SOC is as follows figure 1 shown;

[0033] The multi-channel program transport stream multiplexer interacts with other modules through the AHB bus protocol. It is configured and data entered by the CPU.

[0034] The configuration and input process is as follows figure 2 shown;

[0035] The overall structure of the multi-channel program transport stream multiplexer is as follows: image 3 shown.

[0036] The detailed...

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Abstract

The invention discloses a multi-program transport stream multiplexing device and is applicable to the technical field of digital televisions. The multi-program transport stream multiplexing device can multiplex multiple channels of digital television programs containing audio and video data into a single-channel transport stream. A T-STD (transport stream system target decoder) buffer monitor is added into a hardware structure to simulate ways of acts of each level of buffer area in the T-STD, data size of each level of the buffer areas in the T-STD is acquired, an arbitration and output module firstly judges whether program signals satisfy output conditions or not according to the data size and decides output priority by comparing data sizes and DTS (data transmission services), and finally audio and video signals of multiple programs are multiplexed into single transport stream.

Description

technical field [0001] The invention relates to the technical field of digital television, and proposes a multichannel program transmission stream multiplexing device, which can multiplex multiple digital television programs including audio and video into a single transmission stream. technical background [0002] At present, digital TV is replacing traditional analog TV in an all-round way. Digital TV refers to the type of TV in which all links from the studio to transmission, transmission, and reception are transmitted by using digital TV signals or all signal transmissions to the system are transmitted through digital streams composed of 0 and 1 digital strings. . The signal loss is small and the reception effect is good. Digital TV broadcasting, its signal process includes several processes of production (editing), signal processing, broadcasting (transmission) and reception (display). [0003] The multiplexing system of digital TV is one of the key parts of digital T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/236H04N21/242
Inventor 贾惠柱李卓吉祥虎解晓东黄铁军高文
Owner PEKING UNIV
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