ISP verifying test system and method of CMOS image sensor

An image sensor and verification test technology, applied in image communication, TV system components, color TV components, etc., to achieve high flexibility, solve the bottleneck of data transmission, and improve performance

Inactive Publication Date: 2007-06-27
BYD CO LTD
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The designed ISP function is verified by EDA software, but EDA software simulation can only verify whether the ISP function meets the design requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • ISP verifying test system and method of CMOS image sensor
  • ISP verifying test system and method of CMOS image sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A kind of ISP verification test system of CMOS image sensor, as shown in Figure 1, comprises ISP module 1, data transmission circuit 2 and control module 3; ISP module 1 and data transmission circuit 2 two-way transmission, data transmission circuit 2 and control module 3 Two-way transmission; ISP module 1 receives the original image data output by the CMOS image sensor, performs ISP processing, and then transmits it to the control module 3 for display through the data transmission circuit 2; the control module 3 changes the ISP parameters of the ISP module 1 through the transmission of the data transmission circuit 2.

[0022] The ISP module 1 and the data transmission circuit 2 perform bidirectional transmission through the two-wire serial control bus; the data transmission circuit 2 and the control module 3 perform bidirectional transmission through the two-wire serial control bus.

[0023] ISP module 1 adopts FPGA.

[0024] Data transmission circuit 2 comprises imag...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an ISP system for testing the sensor of CMOS images, which includes a ISP module, a data transmission circuit and a control module, among which: the ISP module and the data transmission circuit bidirectional transmit, the data transmission circuits and the control module bidirectional transmit. The ISP module receives the original image data from sensor of CMOS images then sends the data to the control module for displaying through data transmission circuit after ISP processing. The control module changes the ISP parameters of the ISP module through the data transmission circuit. The invention also discloses its testing method, which collects the output of sensor of CMOS images through ISP module, and directly changes the ISP parameters of ISP module according to the dynamic image display effect, and makes improvements at the same time.

Description

technical field [0001] The invention relates to an ISP verification test system and method of a CMOS image sensor. Background technique [0002] CMOS (Complementary Metal-Oxide Semiconductor, Complementary Metal-Oxide Semiconductor) image sensor, compared with traditional CCD (Charge Coupled Device, Charge Coupled Device) image sensor, has the characteristics of low power consumption and high integration, and has been widely used in mobile phones camera, car camera and other fields. [0003] Due to the high integration feature of the CMOS image sensor, an ISP (Image Signal Process, image signal processing) function is often integrated inside the chip. Due to the high cost of chip production, if the ISP function is found to have problems or even fail after production, it will bring huge economic losses. Therefore, the pre-production verification of chips is very critical. [0004] In the past, the verification before chip production was generally completed through the inte...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/335H04N17/00
Inventor 李立王艳李坤
Owner BYD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap