AUDIO-VIDEO COMMUNICATION DEVICE AND ITS INTERFACE DEVICE

摘要

PURPOSE: To minimize bandwidth condition in channels and to generalize a device by utilizing an interface structure for mutually connecting through a high-speed digital communication link having a limited bandwidth. CONSTITUTION: The series pixels of digital data COMVIDOUT composed of brightness and color fields separated from a digital TV source which is provided with each display node showing a reduced picture window, a local system clock SCLK, a vertical and a horizontal communication synchronizing signals COMVSOUT and COMSHOUT, and a luminance and a color clock usable signals COMYOCE and COMCOCE are transmitted based on a reducing algorithm utilized in a transmitting image device 10 in a transmitting mode, and an appropriate luminance and color field are certainly selected by a communication device 12 for transmission. Then, a prescribed signal is received and the synchronizing signals are utilized in a receiving mode.