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:
Jan. 16, 2001
Filed:
Oct. 16, 1997
Fujitsu Limited, Kawasaki, JP;
Abstract
A digital PLL circuit employs a fixed-frequency output signal from a fixed-frequency oscillator, to provide a signal synchronized with an external reference signal. The digital PLL circuit has a counter and an adjuster. The counter counts clock periods (clock pulses) of the fixed-frequency output signal. The adjuster increments or decrements a value counted by the counter a predetermined number of times in a predetermined period according to a deviation of the fixed-frequency output signal from the reference signal. This digital PLL circuit is inexpensive because it employs no DA converter nor VCO.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile