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. 06, 2015
Filed:
Aug. 30, 2013
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventor:
Tetsuhiko Azuma, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 7/08 (2006.01); H03K 3/017 (2006.01); H03F 3/217 (2006.01); H03F 3/187 (2006.01);
U.S. Cl.
CPC ...
H03K 7/08 (2013.01); H03F 3/187 (2013.01); H03F 3/217 (2013.01); H03K 3/017 (2013.01); H03F 2200/351 (2013.01);
Abstract
An embodiment of pulse width modulated (PWM) signal generator includes a module or modules to calculate an amount of change in a period length and duty ratio of an output signal during a transition period between a first signal waveform and a second signal waveform using a first period parameter, a second period parameter, and a parameter indicating a predetermined number of steps in the transition period. The period parameter and duty parameter of the output signal during the steps of the transition period are based on the calculated amounts of change.