The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 1990
Filed:
May. 20, 1988
Billy W Beyers, Jr, Greenfield, IN (US);
RCA Lincensing Corporation, Princeton, NJ (US);
Abstract
Time-keeping apparatus includes a microcomputer having a normal, relatively high power consumption mode of operation and a standby relatively low power consumption mode of operation. The AC power supply includes energy storage providing standby power for operation during power interruption. A controllable delay arrangement causes the microcomputer to operate in a cyclical mode with a relatively long duration in the standby mode of operation and a relatively short duration in the normal mode of operation. The time period of the relatively long duration, having been previously stored in memory, is utilized for incrementing the time-keeping during the relatively short duration in the normal mode until the end of the power interruption ends the cylical mode of operation.