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.:

US 7724883 B1

PDF
Full Text
Expired
Date of Patent:
May. 25, 2010

Filed:

Jan. 13, 2005
Applicants:

Fumiaki Kobayashi, Yamatokoriyama, JP;

Tatsuya Nishio, Nara, JP;

Inventors:

Fumiaki Kobayashi, Yamatokoriyama, JP;

Tatsuya Nishio, Nara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A telephone system communicating through a plurality of external telephone lines includes base phones connected to respective ones of the plurality of telephone lines and a cable connected so as to allow communication among a plurality of terminals. Each base phone includes a dual-line adaptation function unit for establishing communication through the plurality of telephone lines and a single-line adaptation function unit for establishing communication through a telephone line connected to the base phone itself. Any one of the dual-line adaptation function unit and the single-line adaptation function unit is selectively enabled in response to an external operation. Therefore, the single base phone attains a function as a single-line-adapted model establishing communication through the telephone line connected to the base phone itself or a multiple-line-adapted model establishing communication through the plurality of telephone lines.


Find Patent Forward Citations

Kobayashi, Fumiaki. (2010). Telephone system for communication through multiple lines (U.S. Patent No. 7724883). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7724883

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