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:
Dec. 23, 1997
Filed:
Nov. 27, 1995
Applicant:
Inventor:
Haim Shafir, Sacramento, CA (US);
Assignee:
Level One Communications, Inc., Sacramento, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; G06F / ;
U.S. Cl.
CPC ...
327552 ; 327103 ; 327553 ; 327560 ; 327563 ; 330304 ; 330107 ; 330258 ; 36472401 ;
Abstract
A transconductor-C filter that has coarse and fine control mechanisms allowing for both high speed and high current filtering of the same signal. The filter uses a current controlled oscillator and filter elements that have switchable amplification devices enabling the circuit to adapt to external and internal conditions in real-time. An equalizer is described utilizing the transconductor-C element. Finally, a Phase Locked Loop for providing the control signals to the transconductor-C element is also described.