Method of and apparatus for battery and similar power source conservation in periodically operable portable and related radio receivers and the like

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United States of America Patent

PATENT NO 6229988
SERIAL NO

09082346

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a signal receiving apparatus as, for example, that used in the monitoring in a stolen vehicle transceiver of the presence of sequential transmitted signals specifically requesting that transceiver to respond to enable tracking the vehicle, wherein the receiver is powered by a consumable energy source of predetermined budgeted lifetime and adapted to operate between quiescent energy-saving and energized energy-consuming states for performing such sequential signal monitoring, desired signal identifying and related functions, a method of and apparatus for insuring the availability of energy to be able to perform such functions within said predetermined budgeted life time, that comprises, allocating budget time intervals for periodically operating the receiver intermittently in energized state to enable the performing of such functions as monitoring for such signals; and, in the event of inordinate energy consumption during such operation, that, if continued, would render the operation out of overall allocated time budget, adaptively skipping time intervals with the receiver quiescent, sufficiently to get the operation back on overall time budget.

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Patent Owner(s)

Patent OwnerAddress
LOJACK CORPORATION40 PEQUOT WAY CANTON MA 02021

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Apsell, Sheldon Newton, MA 7 901
Kotlow, Dan Marlborough, MA 1 49
Stapefeld, Norval Brookline, NH 1 49

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