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:
Mar. 06, 2001
Filed:
Mar. 12, 1999
Applicant:
Inventors:
Björn Lindquist, Bjärred, SE;
Magnus Nilsson, Lund, SE;
Assignee:
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/085 ; H03D 1/300 ;
U.S. Cl.
CPC ...
H03L 7/085 ; H03D 1/300 ;
Abstract
There is disclosed a phase detector which triggers on both rising and falling edges of an input pulse signal. This effectively doubles the frequency of the input signal. When the phase detector is used in a phase locked loop, the doubled frequency means that a lower division ratio can be used, thereby reducing any noise contribution introduced thereby.