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:
Dec. 22, 1992

Filed:

Aug. 10, 1989
Applicant:
Inventors:

Mitchell Alsup, Dripping Springs, TX (US);

Carl S Dobbs, Austin, TX (US);

Yung Wu, Austin, TX (US);

Claude Moughanni, Austin, TX (US);

Elie I Haddad, Austin, TX (US);

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307269 ; 307262 ; 328155 ; 328 63 ; 328 72 ; 375119 ;
Abstract

A digital phase lock loop that does not depend on a voltage controlled oscillator (VCO) for phase locking. A phase detector (PD), terminated with a latch, controls an up/down counter that programs an increase/decrease of delay on the delay line. The tapped output of the delay line goes through a two phase generator which in turn feeds back to the PD for comparison with the reference clock. This process is repeated until phase locking is obtained.


Find Patent Forward Citations

Alsup, Mitchell. (1992). Digital phase lock clock generator without local oscillator (U.S. Patent No. 5173617). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5173617

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

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