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:
Jan. 18, 2005
Filed:
May. 12, 2003
Applicants:
Sang Jin Byun, Daejeon, KR;
Beomsup Kim, Campbell, CA (US);
Chan-hong Park, Seoul, KR;
Inventors:
Assignee:
Berkana Wireless, Inc., Campbell, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 706 ;
U.S. Cl.
CPC ...
Abstract
A system and method are disclosed for providing a DLL with false lock protector to avoid false lock and ensure accurate lock. The false lock protector operates when the initial delay time between signals from an input reference clock and an output clock exceeds the lock range during operation of the DLL. The DLL with false lock protector includes a reference clock, a delay line composed of several delay cells connected in series, a phase detector, comparator for comparing phases of signals from the reference and output clocks, a determinator and a controller for controlling the delay of the delay line.