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. 22, 2005
Filed:
Apr. 03, 2003
Hideki Takauchi, Kawasaki, JP;
Tomokazu Higuchi, Kawasaki, JP;
Hideki Takauchi, Kawasaki, JP;
Tomokazu Higuchi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An output circuit has a data control circuit, a variable resistance circuit, a common-mode voltage detection circuit, an adjusting circuit. The data control circuit controls data included in an output signal according to an input signal, the variable resistance circuit is connected in series with the data control circuit between a first power supply line and a second power supply line. Further, the common-mode voltage detection circuit detects a common-mode voltage of the output signal, and the adjusting circuit adjusts a resistance of the variable resistance circuit according to an output of the common-mode voltage detection circuit. The common-mode voltage of the output signal is adjusted to equal an optional voltage, and an amplitude of the output signal is adjustable.