Multi-format video signal gathering and analyzing card

Abstract

A multi-format video signal acquisition and analysis card is composed of a video signal input connector, a power interface (9), a display (11) and a casing (10), and the casing (10) is equipped with a high-definition YPbPr video signal input connector (5 ), high-definition VGA video signal input connector (6), standard definition S-Video video signal input connector (7), standard definition Video video signal input connector (8), and a connector for exchanging data with the computer and input power ( 9); display (11) and buttons (12) are installed on the front of the shell (10); a high-definition video signal AD conversion chip (1) and a standard-definition video signal decoding chip (2) are installed on the circuit board in the shell (10) , a data format processing conversion chip (3), a signal processing and interface chip (4). The invention has the advantages of simultaneously collecting and analyzing standard-definition Video signals, standard-definition S-Video video signals, high-definition VGA video signals, and high-definition YPbPr video signals, and is small in size and light in weight, and can be conveniently used in different occasions.

Description

technical field [0001] The invention belongs to a signal acquisition and analysis device, in particular to a multi-format video signal acquisition and analysis card with analysis function. Background technique [0002] Video acquisition equipment, that is, cameras, have been widely used in industrial control and consumer electronics products. From early black-and-white cameras to high-definition cameras that support 1080i at this stage. How to accurately measure and calibrate the characteristics of the camera output signal has also become a problem. For traditional standard-definition cameras, due to their long history, there are a lot of special equipment that can accurately measure the characteristic parameters of their output signals. In the field of camera research and development, production, and manufacturing, it is necessary to measure the performance parameters of the camera. In the field of application of cameras, it is also necessary to use such equipment to mea...

AI Technical Summary

Problems solved by technology

However, these special-purpose devices generally use special-purpose processors, special-purpose acquisition chips, and digital signal processors (DSP), which have high hardware complexity and high overall equipment costs.

Not conducive to promotion

[0003] Due to the wide application of high-definition video at this stage, the original old equipment cannot be applied to high-definition video

At present, the relevant literature on the equipment for collecting and analyzing standard-definition SD or high-definition HD video images can be found in Patent No. 200610165279.4, but this patent focuses on image transmission, has no image parameter analysis function, and does not have VGA / YPbPr interface

At the same time, the description of patent 200710119329.X focuses on resolution adjustment and display, and has no image parameter analysis function

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