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. 19, 2008
Filed:
Apr. 27, 2005
Masafumi Mitsuishi, Kanagawa, JP;
Masafumi Mitsuishi, Kanagawa, JP;
NEC Electronics Corporation, Kawasaki, Kanagawa, JP;
Abstract
A noise canceller circuit capable of suppressing power supply noise, produced by transition of a data signal, even in case a data signal is increased in speed. The noise canceller circuit includes an output bufferfor outputting a first binary signal that may undergo transition at a timing synchronized with clock signals, and a second output bufferfor outputting a second binary signal which has undergone transition in case the first binary signal does not undergo transition at the above timing and for outputting the second binary signal without transition in case the first binary signal has undergone transition at the above timing. The respective output circuits of the output buffersare the same and are constructed so that the respective power supply sources VDD and the ground GND are common to the buffer circuits. A capacitorfor absorbing the noise is provided across the power supply and the ground.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile