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:
Aug. 05, 1986
Filed:
Jan. 04, 1985
Applicant:
Inventors:
John G Strenkowski, Whippany, NJ (US);
John P Yang, BelleMead, NJ (US);
Assignee:
Lockheed Electronics Company, Inc., Plainfield, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
H04J / ; G01R / ; H03L / ;
U.S. Cl.
CPC ...
328 55 ; 328 63 ; 370108 ; 375107 ; 307269 ; 377 72 ;
Abstract
A digital phase correlator compares the relative phase of two or more high-frequency clocks and corrects for any detected phase difference. The phase detector includes a pair of flip-flops whose output is an indication of which of the two clock pulses is leading the other. The output of the flip-flop controls, through a circuit including a rotating shift register and a multitap delay line, the delay introduced to one of the clocks in a manner such that the phase difference between the clocks is reduced to a minimum.