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:
Jan. 17, 1989
Filed:
Feb. 02, 1988
Yoshiyuki Inoue, Tokyo, JP;
Masaaki Takahashi, Yokosuka, JP;
Koichi Tatekura, Hiratsuka, JP;
Hitoshi Nishikawa, Tokyo, JP;
Hajime Ohta, Tokyo, JP;
Yoshikazu Kogure, Tokyo, JP;
Fujitsu Limited, Kawasaki, JP;
Kokusai Denshin Denwa Co., Ltd., Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A transmission line between terminals of a three-terminal station is branched by a branching unit and power is transmitted between the terminals of the three-terminal station and a power feed system in the transmission line including: a switch for switching a power feed line feeding power to a repeater between a both-end power feed mode and a single-end power feed mode; and connection holding means for holding a power feed connection state without change upon an occurrence of a failure.