Micrologic, Inc.

Daniel B Kotlow

Carlos A Barberis

John J Mahon

A watchdog timer circuit modified to operate during periods of microcomputer shut-down or sleeping, as for energy conservation purposes, controlled by an independent external rectangular-wave signal for inhibiting watchdog timer reset signal generation for the microcomputer during such shut-down periods and until a wake-up signal is generated at the end of such microcomputer sleeping, whereupon the watchdog circuit will generate a reset signal in the absence of proper microcomputer operation.

Method of and apparatus for achieving 'watch dog' functions in microcontrollers and microcomputers and the like, required to shut down for extended periods of time for energy-conservation purposes

Remote resistance measurement technique using a programmable current source to enable accurate measurement of resistance, such as physical parameter sensing resistors such as for the remote monitoring of vehicular construction equipment or the like, particularly where full physical access to the sense resistor is not possible, as, for example, in vehicular fuel gauge applications and the like.

Method of and apparatus for accurate resistance measurement with a programmable current source

A method of and apparatus for regulating power consumption by electronic equipment containing integral rechargeable backup batteries used, among other places, in systems operating with vehicle engine main batteries and the like, and wherein techniques are employed to minimize the depletion of the main batteries used to maintain the charge on the backup battery, particularly under circumstances of engine shut down, but with electronic equipment continued power demands on the backup batteries.

METHOD OF REGULATING POWER CONSUMPTION BY ELECTRONIC EQUIPMENT CONTAINING INTEGRAL RECHARGEABLE BACKUP BATTERIES AND USED IN SYSTEMS WHERE THE EQUIPMENT OPERATES FROM A VEHICLE ENGINE BATTERY AND THE LIKE, AND IMPROVED APPARATUS THEREFOR

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Cherry Hill, NJ, United States of America

Daniel B Kotlow