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. 30, 2011
Filed:
Dec. 22, 2009
Applicant:
Hiroshi Deguchi, Yokohama, JP;
Inventor:
Hiroshi Deguchi, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/20 (2006.01); H03B 5/24 (2006.01); H03K 3/02 (2006.01); H03K 3/26 (2006.01); H03L 1/00 (2006.01); H03L 7/02 (2006.01); H03L 7/04 (2006.01); H03L 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An oscillator circuit generates a constant delay time by use of a current source and a load element to determine a frequency of a clock. The oscillator circuit includes an integrator which integrates the clock, a first comparator which compares an output voltage of the integrator with a reference voltage, and a variable current source which changes a current in accordance with the comparison result of the first comparator. The frequency is corrected in accordance with the current of the variable current source.