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Automatic calibration system for multi-primary video signal transmission

A video signal and automatic calibration technology, which is applied to TV system components, color TV, cable transmission adaptation, etc., can solve problems such as difficult installation and adjustment, complicated operation, and difficult judgment

Inactive Publication Date: 2007-08-08
SHENZHEN UTEPO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This adjustment operation is complicated, and it is not easy to judge with the naked eye, which causes great difficulties in installation and adjustment.

Method used

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  • Automatic calibration system for multi-primary video signal transmission
  • Automatic calibration system for multi-primary video signal transmission
  • Automatic calibration system for multi-primary video signal transmission

Examples

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Embodiment Construction

[0019] Take VGA video signal as embodiment in twisted-pair long-distance transmission, this embodiment is mainly made up of transmitting part and receiving part (accompanying drawing 3), this example comprises VGA video transmitter (301), is used for the transmission medium CAT of transmission -5E network cable (302) and VGA video receiver (303).

[0020] Its working mode is divided into two modes, one is transmission mode and the other is calibration mode. The following describes the operating procedures of the transmitting part and the receiving part in these two working modes respectively. For the calibration mode of this embodiment, refer to FIG. 10 .

[0021] The structural diagram of this embodiment is accompanying drawing 4. When the transmitting part of the example is the transmission mode, the signal processor (403) controls the 3-channel video 4-channel circuit (408) to switch the 3 primary colors R, G, and B signals input by the VGA video input interface (401) to ...

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PUM

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Abstract

The invention relates to one transmission device with multiple base color visual signals transmission automatically calibration system, which comprises emission part and receive part circuits, wherein, in transmission, emission part directly emits signals and the receive part receives transmission signals according to stored calibration signals; when user sends order, system enters calibration mode with first signals; then receive part sends correction order and according to partly correction sequence signals, the receive part tests correction signals as each visual signal balance process and simultaneous time lag signal process then storing correction parameters.

Description

Technical field: [0001] The invention relates to a cable transmission device for multi-primary color video signals. Background technique: [0002] At present, multi-primary color video signals will have nonlinear attenuation problems during long-distance cable transmission. Due to the long transmission cables and the different lengths of the primary color cables, the multi-primary color signals will be out of sync after long-distance transmission. In order to adjust a high-quality video signal, it is necessary to adjust the nonlinear distortion of each primary color signal and the delay of each primary color signal. This adjustment operation is complicated, and it is not easy to judge with the naked eye, which causes great difficulty in installation and adjustment. Invention content: [0003] The purpose of the present invention is to provide an automatic calibration system for multi-primary video signal transmission that can automatically adjust and calibrate through sig...

Claims

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Application Information

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IPC IPC(8): H04N5/04H04N5/06H04N7/10
Inventor 聂怀军聂怀东
Owner SHENZHEN UTEPO TECH CO LTD
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