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:
Mar. 02, 2004
Filed:
Jun. 14, 2001
Applicant:
Inventors:
Nobuyuki Fujii, Tokyo, JP;
Fukashi Morishita, Tokyo, JP;
Mihoko Akiyama, Tokyo, JP;
Akira Yamazaki, Tokyo, JP;
Mako Kobayashi, Hyogo, JP;
Yasuhiko Taito, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/575 ;
U.S. Cl.
CPC ...
G05F 1/575 ;
Abstract
Oscillation outputs which are different for respective detector signals output from a first detector circuit and a second detector circuit, are obtained from a first ring oscillator and a second ring oscillator respectively corresponding to the detector circuits. A selector selects and outputs one of the oscillation outputs. Accordingly, it is sufficient to provide only one pump circuit in a circuit producing a substrate bias voltage.