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. 19, 1997
Filed:
Mar. 15, 1996
Applicant:
Inventor:
John Memishian, Newton, MA (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
327307 ; 327111 ;
Abstract
A micromachined device has first, second, and third electrodes forming a differential capacitor, and first and second drivers for providing clocked signals to the first and second electrodes. The drivers each have supply leads coupled to first and second reference voltage supplies via fixed first and second resistors, and also coupled together with variable resistors for trimming an offset so that electrostatic forces are balanced.