Patent ID: 8125523
Filing Date: 2012-02-28
Classification: A61B,G09G,H04N

Abstract:
1. An ultrasonic video display device, comprising: a memory to buffer video data; a programmable logic device comprising; a Video Graphics Array (VGA) signal receiving module to receive digital video signals, and a video signal processing module comprising a memory controller, a gamma correcting unit, a scaling processing unit, a filtering unit, a chrominance space converting unit, a chrominance sampling unit, and an interleaved sampling controller, wherein the VGA signal receiving module is to demodulate the received digital video signals and to output the demodulated digital video signals to the memory controller, wherein the memory controller is to detect frame start information in the digital video signals and, upon detecting frame start information, to store the video signals in the memory on a frame-by-frame basis, wherein the memory is to read out every other frame of the stored digital video signals and to send the same to the video signal processing module, and wherein the video signal processing module performs gamma correction, scaling processing, two-dimensional filtering, chrominance space converting, double sampling of chrominance and interleaved sampling processing on the digital video signals and outputs video digital signals; a first digital-to-analog converter coupled to the VGA signal receiving module to convert and output the digital video signals as VGA analog signals; and a second digital-to-analog converter to convert and output the video digital signals as video analog signals.