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. 11, 1998
Filed:
Apr. 26, 1996
Applicant:
Inventors:
Marwan A Fawal, Santa Clara, CA (US);
Burton B Lo, San Francisco, CA (US);
Ruchi Wadhawan, Sunnyvale, CA (US);
Assignee:
3Com Corporation, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G / ; H03L / ;
U.S. Cl.
CPC ...
331111 ; 331143 ; 257532 ; 257306 ; 3613014 ; 3613063 ;
Abstract
A current-controlled oscillator with first and second differential comparators (640, 840) serving as inputs, first and second voltage independent multi-layered integrated capacitors (600, 800) corresponding to the first and second comparators (640, 840), and a RS latch (700) for switching operation between the two comparators (640, 840) thereby achieving oscillation. The multi-layered integrated capacitors (600, 800) are designed to provide voltage independent capacitance.