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.

Date of Patent:
Aug. 20, 1996

Filed:

Feb. 10, 1995
Applicant:
Inventor:

Shinichi Kiyota, Tokyo, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
388811 ; 388804 ; 388911 ; 388912 ; 318600 ; 318607 ;
Abstract

A PLL system has a phase comparator for converting the phase difference between a reference clock signal and a feedback clock signal corresponding to a PWM signal Into a binary value, a frequency comparator for converting the frequency difference between the reference and feedback clock signals into a binary value, an automatic gain controller for adjusting the loop gain of the PLL system to a given value whenever the output of the frequency comparator reaches a change point, and a PWM signal generator for generating the PWM signal according to the outputs of the phase comparator, frequency comparator, and automatic gain controller. These components of the PLL system process digital signals, to simplify the structure of the PLL system, expand the range of loop gains to be set, and speedily synchronize the feedback clock signal with the reference clock signal.


Find Patent Forward Citations

Kiyota, Shinichi. (1996). Digital pll system (U.S. Patent No. 5548679). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5548679

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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