发明名称 A TDM quasi-duplex system
摘要 An improved quasi-duplex time division multiplexed (TDM) communication system provides for transmission by a talker until an interrupt command for role reversal is transmitted by a listener. Preferably, the time allocated for voice transmission is greater than the time allocated for command transmission. In this manner, the primary feature of full-duplex communications is provided simply while conserving spectrum.
申请公布号 US4949335(A) 申请公布日期 1990.08.14
申请号 US19890300673 申请日期 1989.01.23
申请人 MOTOROLA, INC. 发明人 MOORE, MORRIS A.
分类号 H04B1/44;H04B1/54;H04J3/16;H04L5/16 主分类号 H04B1/44
代理机构 代理人
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