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:
Jun. 30, 1992
Filed:
Jun. 17, 1991
Dejan Mijuskovic, Chandler, AZ (US);
Jeffrey A Porter, Tempe, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A variable clock delay circuit provides a clock output signal (CLKOUT) whose phase can be varied with respect to an incoming reference signal (REFIN). A voltage controlled ring oscillator (24) having a plurality of delay stages (26-33) locks to a predetermined factor of the frequency of the incoming reference signal. A multiplexer circuit (14) selectively provides a signal (or its inversion thereof) appearing at a selected input of any one of the plurality of delay stages to its output. A divider circuit (16) divides the signal appearing at the output of the multiplexer circuit by the predetermined factor to obtain the clock output signal whose frequency is substantially equal to the frequency of the incoming reference signal and whose phase can be adjusted with respect to the incoming reference signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile