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:
Feb. 03, 2015
Filed:
Feb. 26, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Hiroki Oshiyama, Yokohama, JP;
Takayuki Hamada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a phase adjustment circuit, a first phase adjuster has a plurality of parallel-connected first inverters that receives an input signal to be phase-adjusted, wherein a first inverter to be activated is selected by a first control signal. A second phase adjuster has a plurality of parallel-connected second inverters that receives the input signal with a predetermined delay time, wherein a second inverter to be activated is selected by a second control signal. An output circuit receives output signals of the first and second phase adjusters and outputs a signal whose phase is adjusted within a range of the delay time. The second phase adjuster further includes transistors connected to the second inverters. During the delay time, these transistors block a current path between the first and second phase adjusters, under the control of the input signal.