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:
Oct. 09, 2001
Filed:
Sep. 13, 1999
Applicant:
Inventor:
Hidetaka Kodama, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/0231 ; H03L 1/02 ;
U.S. Cl.
CPC ...
H03K 3/0231 ; H03L 1/02 ;
Abstract
An oscillation circuit for outputting an oscillation signal includes a comparison circuit and a reference signal generation circuit. The comparison circuit compares two voltage levels and outputs a comparison result as the oscillation signal. The reference signal generation circuit provides a signal input to the comparison circuit. The reference signal generation circuit includes at least two resistance means coupled with each other in series, where one resistance means is given a smaller regulation of the resistance value relative to the temperature as compared with other resistance means.