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专利名称：Power consumption control method and
apparatus for a communication systemsubscriber unit
发明人：Jim J. Huah,John Kaewell,Kevin Kinney,Mark
A. Lemmo,Michael W. Regensburg,William T.Vanderslice, Jr.,David Vessal
申请号：US08/624703申请日：19960326公开号：US05666355A公开日：19970909
摘要：A subscriber unit of a time division multiple access (TDMA) radiotelephonesystem is, from a power consumption standpoint, reconfigured in each time slot of aTDMA frame to a power consumption tessellation in which subscriber unit circuitcomponents not needed for communication signal processing in that time slot arepowered down, and other components are powered up. Some circuit components arepowered down by switching their power supply circuits. In order to minimize the extentof circuitry that must be provided to distribute power consumption control signals, othertechniques (which utilize circuitry provided for other purposes), such as clock frequencycontrol or power down commands, also are utilized to modify controlled circuit
component power consumption without actually controlling power supply circuits. Loopconnection length between the subscriber unit and the subscriber's telephone set, orother terminal equipment, is limited to a length which is much less than the length of aradio link on which the subscriber unit operates. Programmable ring frequency logic
controls the frequency of a ringing signal generator, and a high frequency ring controlsignals switched on and off in the cadence of ringing operation. Also an expansion headeris provided to enable serving plural subscriber loop circuits with the same radioequipment for reducing per line power consumption.
申请人：INTERDIGITAL TECHNOLOGY CORPORATION
代理机构：Ratner & Prestia
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