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1.Remote control system including circuitry for superimposing control signals on selected half cycles of a supply line carrier wave 失效
Title translation: 远程控制系统,包括用于超级控制信号的选择电源线载波波形的半周期的电路公开(公告)号:US3451052A
公开(公告)日:1969-06-17
申请号:US3451052D
申请日:1964-08-31
Applicant: GEN TIME CORP
Inventor: ANDERSON WILMER C , FIRESTONE JOHN H
CPC classification number: H02J13/0031 , Y10T307/944