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. 31, 1998
Filed:
May. 18, 1994
Applicant:
Inventors:
Yasuhisa Takeyama, Kawasaki, JP;
Junichi Miyamoto, Yokohama, JP;
Yoshihisa Iwata, Yokohama, JP;
Hironori Banba, Kawasaki, JP;
Hideko Oodaira, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; G05F / ;
U.S. Cl.
CPC ...
327295 ; 327291 ; 327536 ; 327537 ; 331 74 ; 36518527 ;
Abstract
A semiconductor circuit device includes an oscillator for outputting an oscillating signal, a driving signal generator for generating driving signals having respective phases based on a counting of oscillations of the oscillating signal, and a charge pump circuit driven by the driving signals. A pulse width ratio of the driving signals to one another is constant even when an oscillation period of the oscillating signal output by the oscillator changes, whereby the charge pump operates properly under changing conditions.