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:
Feb. 01, 1983
Filed:
Feb. 25, 1981
Applicant:
Inventor:
John M Dugan, Garland, TX (US);
Assignee:
Rockwell International Corporation, El Segundo, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
375 82 ; 307516 ; 328133 ; 329 50 ; 375120 ;
Abstract
A digital phase detector is provided for NRZ data phase detection. In a phase locked loop application, the detector generates a variable duration pulse between a data transition and a positive transition of the recovered clock, and generates a fixed duration pulse between the positive clock transition and the next negative clock transition. The difference in duration between the variable and fixed pulses provides phase indication.