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Digital television test system based on DSP (Digital Signal Processor)

A technology of digital TV and test system, applied in the field of communication, can solve the problem of no TV interface, PC machine cannot generate TV signal, etc.

Inactive Publication Date: 2012-05-09
GUANGZHOU ZHONGDA TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the PC itself cannot generate TV signals, nor does it have a TV interface. A video signal generation

Method used

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  • Digital television test system based on DSP (Digital Signal Processor)
  • Digital television test system based on DSP (Digital Signal Processor)
  • Digital television test system based on DSP (Digital Signal Processor)

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] Such as figure 1 As shown, the present invention mainly includes the following units: three parts: signal source and application program, DSP and digital TV measurement.

[0029] Described signal source is realized by the MATLAB software programming on the PC, and the development of application program also is to carry out on the PC, under the software development environment SDE in the TDK (TriMedia Developer's Kit) development tool:Sotfware Development Env...

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Abstract

The embodiment of the invention discloses a digital television test system based on a DSP (Digital Signal Processor), and the system comprises a signal source unit, a DSP unit and a digital television measuring unit. The signal source unit is realized by MATLAB (Matrix Laboratory) software programming on a PC (Personal Computer), and is finished by C language development under SDE (Software Development Environment) of a TDK (TriMedia Developer's Kit); the DSP unit forms a hardware main body structure of a whole television signal generator and is a hardware development platform taking a TriMedia DPSCPU chip of the Philips corporation as a core; and the digital television measuring unit outputs digital television test signals through a monitor and measures by observing output effects. The digital television test system disclosed by the invention can be used as a standard signal source of a digital television video encoding and video processing device.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a DSP-based digital TV testing system. Background technique [0002] Digital TV is a completely digital TV system from program recording to program editing, launch, transmission, and signal reception, processing and display. With the rapid development of computer technology, digital processing technology and image compression technology, broadcast TV has entered a new era of digital TV development. Digital TV measurement equipment is an indispensable testing and debugging tool in the development and application of digital TV. [0003] Most of the standard image signals currently used to measure broadcasting and television equipment are generated by traditional video image signal generators. They are basically divided into independent units based on signal types, and then each unit forms a multi-signal generator. image generator. Its composition is very complicated, espec...

Claims

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Application Information

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IPC IPC(8): H04N17/00
Inventor 罗笑南孟思明谭南张伟忠
Owner GUANGZHOU ZHONGDA TELECOMM TECH
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