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:
Nov. 09, 1999
Filed:
Oct. 23, 1998
Applicant:
Inventors:
Hirokazu Yoshizawa, Tokyo, JP;
Kenichi Kobayashi, Tokyo, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
331143 ; 331111 ;
Abstract
There is provided a CR oscillating circuit from which oscillation frequency is obtained as targeted, when MOS capacitors having large voltage dependency are used therein. The circuit is constructed such that bias voltage is applied always to the two MOS capacitors by connecting the two MOS, capacitors in series in the opposite direction from each other and by connecting further a MOSFET.