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. 01, 2002
Filed:
Apr. 30, 2001
Atsumasa Sako, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The variable delay circuit has a delay circuit and a selector. The delay circuit is formed of a plurality of delay stages connected in cascade. The delay circuit receives an input signal at the initial delay stage and respectively outputs a delayed signal which is the input signal delayed, from the delay stages. The selector receives the delayed signals and selecting signals respectively corresponding to the delayed signals. The selector selects the delayed signal corresponding to an activated selecting signal and outputs the selected signal as a delayed output signal. The delay stage(s) subsequent to the delay stage outputting the delayed signal selected by the selector is/are inactivated. Not operating unnecessary delay stages can prevent wasteful power consumption.