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:
Sep. 24, 2002
Filed:
Oct. 11, 2001
Masayuki Yamaguchi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A receiver circuit in a communication system receives a complementary potential signal having a ground level or a floating level from a transmitter circuit through a pair of transmission lines. The receiver circuit includes first and second switching transistors for supplying a complementary current signal based on the complementary potential signal, a current detection transistor for detecting the current flowing through the switching transistors, and a potential control unit for controlling the gate potentials of the switching transistors based on the detected current for implementing a negative feedback loop. The negative feedback loop compensates the influence by a fluctuation of the potential of the transmitter circuit or the receiver circuit.