发明授权
US4746982A Equipment for through-connecting color television signals 失效
通过连接彩色电视信号的设备

Equipment for through-connecting color television signals
摘要:
Equipment for the through-connection of color television signals between a broadband network BN and video sources and video using equipment including a first video bus VB1 to which a plurality of source connection assemblies QAB1 through QAB3 can be connected with switching sets S1 throgh S3 is provided. A second video bus VB2 to which a plurality of using equipment connection assemblies SAB1 through SAB2 are connected and including a switch-over assembly UB which has input lines L.sub.E and output lines L.sub.A which are connected to the broadband network BN and are connectible to the video buses through interface switch sets SS1, SS2 and comprising a first interface switch set SS1 which is connected between the input lines and the second video bus and also including a second interface switch SS2 which is connected between the first video bus and the output lines and also including a third interface switch SS3 which is connected between the first video bus VB1 and the second video bus VB2 such that any source of television signals can be connected to any user equipment or sync of television equipments.
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