US5666355A

2G

Title

Power consumption control method and apparatus for a communication system subscriber unit

Application Number:

US19960624703

Publication Date:

09-09-1997

Current Assignee:

INTEL CORP

Family ID:

23065096

Application Date:

26-03-1996

Publication Country:

US

View on Espacenet

Priority Date:

21-07-1994

Declaring Company:

INTERDIGITAL INC

Abstract  Abstract

A subscriber unit of a time division multiple access (TDMA) radiotelephone system is from a power consumption standpoint reconfigured in each time slot of a TDMA frame to a power consumption tessellation in which subscriber unit circuit components not needed for communication signal processing in that time slot are powered down and other components are powered up. Some circuit components are powered down by switching their power supply circuits. In order to minimize the extent of circuitry that must be provided to distribute power consumption control signals other techniques (which utilize circuitry provided for other purposes) such as clock frequency control or power down commands also are utilized to modify controlled circuit component power consumption without actually controlling power supply circuits. Loop connection length between the subscriber unit and the subscribers telephone set or other terminal equipment is limited to a length which is much less than the length of a radio link on which the subscriber unit operates. Programmable ring frequency logic controls the frequency of a ringing signal generator and a high frequency ring control signals switched on and off in the cadence of ringing operation. Also an expansion header is provided to enable serving plural subscriber loop circuits with the same radio equipment for reducing per line power consumption.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.

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