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:
Jul. 15, 1986
Filed:
Dec. 30, 1983
John F McKenna, Jr, Gloucester, MA (US);
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Abstract
A clock generator source, a plurality of which can be used as redundant clock sources in a fault tolerant clock system. The input and output clock signals of said source being formed of a plurality of pulses having a frequency substantially higher than the frequency of the input and output signals, one pulse being omitted in each cycle thereof to form a 'dead interval' therein when the input and output signals are in phase. When the output signal is not in phase with the input signal at the start of a cycle the length of the cycle of the output signal is either lengthened or shortened by inserting a second dead interval or omitting the dead interval, respectively, to bring the input and output signals in phase by the end of the cycle.