发明名称 Video communication system
摘要 A video communication system includes a terminal unit for transmitting/receiving an information signal including video information, and a repeater to which a plurality of terminal units identical to the terminal unit can be connected. The repeater forms a transmission signal to be sent to a transmission line by frequency-multiplexing information signals respectively transmitted from the plurality of connected terminal units. The repeater also receives a transmission signal supplied from the transmission line and supplies a plurality of information signals frequency-multiplexed with the input transmission signal to a corresponding terminal unit. With this arrangement, an inexpensive, easy-to-use video communication system which suffers little deterioration in image quality and sound quality can be provided. <IMAGE>
申请公布号 EP0713336(A2) 申请公布日期 1996.05.22
申请号 EP19950308226 申请日期 1995.11.16
申请人 CANON KABUSHIKI KAISHA 发明人 SAKATA, TSUGUHIDE;SUGAWARA, MASATO
分类号 H04N7/14;H04N7/15 主分类号 H04N7/14
代理机构 代理人
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