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:
Sep. 19, 1989
Filed:
Dec. 13, 1988
Kaushik Popat, Pleasanton, CA (US);
David MacMillan, Sunnyvale, CA (US);
Gazelle Microcircuits, Inc., Santa Clara, CA (US);
Abstract
A delay circit is described which automatically adjusts the propagation delay of clock signals, generated by a clock source, distributed to various receiving devices so that the receiving devices are clocked simultaneously. In one embodiment, the clock signal generated by a single clock source is independently delayed for each receiving device. To determine the proper amount of delay, a clock signal is simultaneously transmitted to each of the receiving devices and a clock return signal from each receiving device is returned to a delay circuit via a return path. The delay circuit detects the various differences in round-trip arrival times of the clock signal associated with each receiving device and fixes a particular clock signal delay for each receiving device so that subsequent clock signals will arrive at each receiving device simultaneoulsy.