Coupled reverse current source graph processing system based on constant-current protection

Abstract

The invention discloses a logic protection emitter coupling reverse current source graphic processing system which is mainly composed of an image sensor, a drive circuit connected with the image sensor, a processing circuit connected with the drive circuit, an emitter coupling asymmetric trigger circuit connected with the processing circuit and a precise reverse current source circuit connected between the drive circuit and the processing circuit in series. The system is characterized in that a light beam excitation type logic amplifying circuit is connected between the emitter coupling asymmetric trigger circuit and the drive circuit in series and a logic protection emitter coupling amplifying circuit is further connected between the light beam excitation type logic amplifying circuit and the drive circuit in series. The logic protection emitter coupling reverse current source graphic processing system is quite simple in overall structure, and combined with the emitter coupling asymmetric trigger circuit, the system has the advantages that the processing speed is greatly increased compared with the traditional speed, an image with 1028 pixel *1028 pixel is processed only within 0.3 s, and the processing speed is more than 20 times of the traditional processing speed.

Description

technical field [0001] The invention belongs to the technical field of image processing, and specifically refers to a coupled reverse current source image processing system based on constant current protection. Background technique [0002] At present, image recognition products represented by scanners emerge in an endless stream, which greatly enrich people's lives. However, the current image recognition capabilities of these image recognition products have certain limitations, that is, their image recognition speed and accuracy are still not high, and in the recognition process, there will be situations where the image or paper does not fit tightly with the scanning sensor. This results in a distorted area that cannot truly reflect the actual effect. At the same time, since the drive circuits of these image recognition products are also susceptible to fluctuating currents, they cannot process image signals well when the current fluctuates. Contents of the invention [...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the current image recognition system is easily affected by the fluctuating current, and it cannot process the image signal well when the current fluctuates, and provides a coupled reverse current source pattern based on constant current protection processing system

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