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Image transmission circuit based on MIPI protocol and implementation method thereof

A transmission circuit and image sensor technology, applied in image communication, cable transmission adaptation, television, etc., can solve the problems of increasing equipment cost and power consumption, increasing high-speed photoelectric conversion equipment, etc., to reduce equipment cost, simple receiving and transmitting circuits Effect

Pending Publication Date: 2020-04-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of these solutions require large-scale transformation at the receiving end and sending end, adding high-speed photoelectric conversion equipment or high-speed image codec processors, which significantly increases equipment cost and power consumption, as well as the size of the camera.

Method used

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  • Image transmission circuit based on MIPI protocol and implementation method thereof
  • Image transmission circuit based on MIPI protocol and implementation method thereof
  • Image transmission circuit based on MIPI protocol and implementation method thereof

Examples

Experimental program
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Effect test

Embodiment

[0051] Such as figure 1 As shown, the present embodiment provides an image transmission circuit based on the MIPI protocol, including: a camera interface circuit and a host interface circuit, the camera interface is connected to the host interface circuit, and a 16-core aviation socket is used to connect the camera and the host, and the connecting cable is 8 pairs of twisted pairs, the twisted pair is composed of two six categories of CAT6 twisted pairs. The first twisted pair is the power line, +4V and ground GND; the second twisted pair is the clock line SCL and ground GND of the SCCB bus, and the third twisted pair is the data line SDA and ground of the SCCB bus Line GND, the clock line and data line of the SCCB bus and the ground wire are transmitted on a pair of twisted pairs to reduce electromagnetic interference and improve communication reliability; the fourth pair of twisted pairs is based on the differential of the MIPI physical layer of LVDS Clock lines CLOCK LANE+...

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Abstract

The invention discloses an image transmission circuit based on an MIPI protocol and an implementation method thereof, the circuit comprises a camera interface circuit and a host interface circuit, anda camera interface is connected with the host interface circuit; the host interface circuit comprises a main processor and a host multi-core aviation socket. The main processor is connected with thehost multi-core aviation socket; the main processor is connected with the host multi-core aviation socket; the camera interface circuit comprises an image sensor, an LVDS transmitter and a camera multi-core aviation socket. The image sensor is connected with the LVDS transmitter, the LVDS transmitter is connected with the camera multi-core aviation socket, and the image sensor is connected with the camera multi-core aviation socket. The invention can adapt to high-speed data transmission with a long transmission distance, can perform high-speed data transmission and decode data bytes, supportsan MIPI upper-layer protocol to perform optimization control of automatically adjusting the communication rate, and realizes high-speed and high-reliability image transmission.

Description

technical field [0001] The invention relates to the technical field of image transmission processing, in particular to an image transmission circuit based on the MIPI protocol and an implementation method thereof. Background technique [0002] At present, the MIPI standard has become the main standard for image sensor image output; the full name of MIPI is MobileIndustry Processor Interface, the original intention is to standardize the interface between the camera, display, RF baseband and processor inside the mobile phone to meet the needs of large-capacity image transmission The physical layer C-PHY and D-PHY of MIPI widely used at present have a short transmission distance. Due to the wide application of image sensors in the fields of medical electronics (such as endoscopes) and automotive electronics (such as reversing images), the MIPI interface will also be widely used in these fields and more other fields that require longer distances. Communication in these occasions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/04H04N5/268H04N5/765H04N7/10H04N5/369
CPCH04N5/04H04N5/268H04N5/765H04N7/10H04N25/70
Inventor 李向阳刘富春
Owner SOUTH CHINA UNIV OF TECH
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