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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 4063043 B1

PDFFull Text
Date of Patent:
Dec. 13, 1977

Filed:

Jun. 06, 1975

Intraoffice alternate connection arrangement

Applicant:
Inventors:

Joji Tashiro, Kawasaki, JA;

Tadahiko Kawanabe, Nagareyama, JA;

Noboru Araki, Tokyo, JA;

Kazuo Ashihara, Kodaira, JA;

Toshio Ando, Machida, JA;

Sadayuki Hiragi, Yokohama, JA;

Kazuo Itoh, Yokohama, JA;

Yukio Ozawa, Hiratsuka, JA;

Eiichi Odera, Kunitachi, JA;

Kosuke Inoue, Kawasaki, JA;

Assignees:

Nippon Telegraph and Telephone Public Corporation, ALL OF, JA;

Oki Electric Industry Co., Ltd., ALL OF, JA;

Nippon Electric Company, Limited, ALL OF, JA;

Hitachi, Ltd., ALL OF, JA;

Fujitsu Limited, ALL OF, JA;

Attorney:

Watson, Cole, Grindle & Watson

Primary Examiner:

Thomas W Brown

Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
179 / ;
Abstract

An intraoffice trunk switching system wherein a connecting path between the called subscriber and the intraoffice trunk is established first; the connecting path between the calling subscriber and the intraoffice trunk to which the called subscriber is connected is then selected so that if no idle channel is available the first connecting path is released and simultaneously therewith the connecting operation between the calling subscriber and the intraoffice trunk is stopped and an idle intraoffice trunk is selected. The connecting path between the called subscriber and the selected intraoffice trunk is established and then the connecting path between the calling subscriber and the selected intraoffice trunk is set to improve the link block ratio of the intraoffice connection.

Find Patent Forward Citations

Tashiro, Joji. (1977). Intraoffice alternate connection arrangement (U.S. Patent No. 4063043). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4063043

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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