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:
Feb. 08, 1994
Filed:
Nov. 04, 1991
Applicant:
Inventors:
Assignee:
New SD, Inc., San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310366 ; 310321 ; 310367 ; 310370 ;
Abstract
Mechanical resonator and method in which electrodes or other driving and sensing elements are energized with an AC voltage to produce oscillations in a tine. The electrodes or other driving and sensing elements have at least two parameters which are adjusted to selectively enhance oscillations in one mode, e.g. the fundamental mode, and/or to selectively suppress oscillations in one or more other modes, e.g. an overtone mode. The parameters which can be adjusted include the endpoints of electrodes, the width of a gap between adjacent ends of electrodes, and corresponding features of other driving and sensing elements.