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. 03, 1993
Filed:
May. 02, 1991
Applicant:
Inventors:
Bhum C Lee, Dongku Daejeon, KR;
Kwon C Park, Seogu Daejeon, KR;
Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
375120 ; 375 82 ;
Abstract
The present invention provides a phase detector comprising a driver U1 and D-type flip-flops U2 and U3 which reduces the high frequency component of the jitter in VCO, in analog-fashion operation, enables the use of general purpose logic elements being irrespective of the data bit speed, and enables the application of both analog PLL and digital PLL.