发明名称 Communication systems
摘要 A pulse modulation system in which both ends of the pulses of a train can be modulated in time relative to time marker signals, permits establishment of a four-channel, time division, duplex communication system on a single radio frequency carrier. The modulation technique permits pulse width modulation of signals whose band width exceeds the pulse repetition rate.
申请公布号 US4159448(A) 申请公布日期 1979.06.26
申请号 US19770766700 申请日期 1977.02.08
申请人 RATH WESTERN CORP 发明人 PARHAM, O D
分类号 H03K9/08;H03K7/08;H04B14/02;H04L5/14;(IPC1-7):H03K7/08 主分类号 H03K9/08
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