4 results about "Video-signal generator" patented technology

The application discloses a video signal generator supporting multiple protocol outputs and timing programming, comprising a power module, a clock module, an optical fiber data receiving module, a cache management module and a multiple protocol video and timing generation module. The application takes a field programmable logic gate array as a core architecture, solves the problems of single protocol and non-self-defined video timing of a traditional video signal generator, has the ability of multiple channel independent and synchronous output and non-standard timing video generation, and can provide required signal sources for development and test of various video display devices.

The utility model relates to a device for measuring video image delay of display equipment. The device comprises a Scaler chip and a photosensitive probe, the Scaler chip comprises a graph generation module, an operation processing module and a video data integration module; the graph generation module is electrically connected with the operation processing module and the display device. The operation processing module is also electrically connected with the video data integration module and the photosensitive probe. The video data integration module is also electrically connected with the display equipment; a graph generation module of a Scaler chip is used as an image signal generator, an operation processing task is completed through an integration operation processing module, a corresponding calculation result is directly output to a display device through a video data integration module, an expensive video signal generator or a special PC is replaced, the measurement effect is guaranteed, and the measurement accuracy is improved. And the application and design cost of measurement equipment is effectively reduced.

The invention discloses multi-protocol video signal quality analyzer equipment. The multi-protocol video signal quality analyzer equipment comprises an FPGA (Field Programmable Gate Array) Virtex subsystem, an FPGA ZYNQ subsystem, a multi-channel high-speed video signal acquisition subsystem, an analog video signal input module, a power supply module, a clock module and a PC (Personal Computer). According to the invention, consistency test, protocol analysis and signal quality analysis of various mainstream video protocols such as LVDS, HDMI, DisplayPort, FPD-LINK and RGB in an avionics display system are realized, static image analysis, video stream dynamic detection and physical layer signal integrity test are supported, and high-precision signal acquisition and multi-protocol compatibility analysis capabilities are realized. The system integrates the functions of a high-speed oscilloscope, a logic analyzer, a protocol analyzer and a video signal generator, achieves the integrated, standardized and self-loopback test of multi-protocol video equipment, remarkably improves the test efficiency and precision, and has important engineering application values for the research and development verification, production quality inspection and fault diagnosis of display equipment.

The invention discloses a video signal generator with nanosecond delay control. The video signal generator comprises a test video source input and control module, a test video source receiving and transmission module, a test video algorithm processing module, a real-time video source input module, a test video output module, a power module and a clock module. The FPGA, the double ARMs and the double ASICs serve as a core framework, the problems that a traditional video signal generator is single in output signal type, low in real-time performance, poor in compatibility and simple in testing function are solved, the multi-channel precise synchronous output capacity is achieved, testing of holographic projection, AR, VR, multi-projection circular screen and other novel display technologies is supported, and the testing efficiency is improved. The multi-screen synchronous test, the special resolution output test, the pixel-level video delay adjustable test and the real-time video acquisition function are realized, the limitation of the traditional equipment in the aspects of test diversity and specialty is broken through, and efficient and reliable test support is provided for the development of a novel display technology.