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

A technology of photoelectric imaging and digital interface, which is applied in parts of TV systems, parts of color TVs, TVs, etc. It can solve the problems of miniaturization of miniature photoelectric imaging systems, large mechanical interface size, and many external connection lines. and other issues, to achieve the effects of wide applicability, size reduction, and simple circuit

Inactive Publication Date: 2006-06-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

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

[0021] The specific implementation of the interface to realize duplex data transmission is as follows:

[0022] Step 1: Micro-Single Chip Microcomputer (MCU) 3, the B phase of the control data switch 2 and the data switch 4 are connected, and the A phase is disconnected to form a control signal transmission channel.

[0023] Step 2: The LVDS line driver 7 converts the external control signal into an LVDS signal output, which is input to the LVDS receiver through the data switch 4 and data switch 2, and the LVDS receiver decodes the input signal and outputs it to realize miniature photoelectric imaging System parameter configuration.

[0024] Step 3: Micro-single-chip microcomputer (MCU) 3, control data switch 2 and data switch 4 A phase is connected, and B phase is disconnected to form a video signal transmission channel.

[0025] Step 4: LVDS video encoder 1 converts the input high-speed digital video signal into LVDS signal output, and inputs it to LVDS video decoder 2 thro...

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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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IPC IPC(8): H04N5/765
Inventor 郝群宋勇程序李翔
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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