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.

Date of Patent:
Dec. 26, 2006

Filed:

Jul. 18, 2000
Applicants:

Yuji Nagatani, Wako, JP;

Kazuya Iwamoto, Wako, JP;

Hiroshi Hashimoto, Wako, JP;

Inventors:

Yuji Nagatani, Wako, JP;

Kazuya Iwamoto, Wako, JP;

Hiroshi Hashimoto, Wako, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/00 (2006.01); H04L 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communication system in which a reception signal can be accurately obtained from a signal transmitted over two-wire type transmission lines without any significant reduction in the communication speed. The communication system utilizing two-wire type transmission lines for transmitting transmission signals in opposite phases has a plurality of nodes connected to the two-wire type transmission lines, and each of the nodes incorporates terminating resistors acting upon the two-wire type transmission lines. A node which includes a reception circuit for receiving a transmission signal has an AC coupling circuit for extracting AC components in a transmission signal input through the transmission lines, a bias circuit for applying a bias voltage to a signal output from the AC coupling circuit and a clip circuit for clipping the level of a signal output from the bias circuit, which are provided at each of the two-wire type transmission lines.


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