High speed bidirectional digital interface suitable for micro photo electric imaging system

A technology of digital interface and photoelectric imaging, which is applied in parts of TV system, parts of color TV, TV, etc. It can solve the problem of miniaturization of miniature photoelectric imaging system, many external connecting lines, and large size of mechanical interface. and other issues, to achieve the effect of wide applicability, simple circuit, and reduced size

Inactive Publication Date: 2009-08-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantage of the Camera Link interface is that there are many external connection lines (42 in FULL mode), and the size of the standard mechanical interface is large (1.55×0.51 inches), which cannot meet the miniaturization requirements of the miniature photoelectric imaging system

Method used

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  • High speed bidirectional digital interface suitable for micro photo electric imaging system

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0018] The video signal transmission channel is mainly composed of LVDS video encoder chip and LVDS video decoder chip. Among them, the video encoder chip is located at the output end of the miniature photoelectric imaging system. Its input end is connected with the digital video output end of the photoelectric imaging system, and the output end is connected with the A-phase input end of the first data switch; the video decoder chip is located at the input end of the terminal equipment. Its input terminal is connected with the output terminal of the second data switch, and its output terminal is connected with the input terminal of the terminal equipment.

[0019] The control signal transmission channel is composed of an LVDS line driver chip and an LVDS receiver chip. Among them, the LVDS line driver is located at the output end of the terminal eq...

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Abstract

This invention relates to an interface for high speed and two-way digital transmission, which realizes the high speed data transmission with the maximum rate of 2.38Gbit / sec based on the LVDS technology and two-way signal transmission of video signals and control signals by an embedded micro-controller and a data switch so as to resolve the contradiction between the micromation of the photoelectric image system and two-way transmission of high speed signals.

Description

Technical field [0001] The invention relates to a high-speed, bidirectional digital interface suitable for a miniature photoelectric imaging system, which belongs to the field of photoelectric technology. Background technique [0002] The miniature photoelectric imaging system is a highly miniaturized and integrated photoelectric imaging device, and its weight is generally within 10g. This type of system mainly realizes the real-time acquisition of target or scene video information, and has a wide range of applications in the fields of micro-aircraft, micro-robots, intelligent monitoring, and security. [0003] At present, digital interfaces used in photoelectric imaging systems generally include: IEEE1394 interfaces, USB interfaces, and CameraLink interfaces. [0004] IEEE1394 is a serial interface standard with video data transmission speed formulated by IEEE standardization organization, and its transmission speed is divided into three levels: 100, 200 and 400Mbps. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/765
Inventor 郝群宋勇程序李翔
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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