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:
Jul. 17, 2001
Filed:
Dec. 27, 1996
Yoshiyuki Kokubun, Koriyama, JP;
Hitachi Telecom Technologies, LTD, Koriyama, JP;
Abstract
A trading communication system. A line control unit includes a channel switch circuit, a number of line trunks connected to the channel switch circuit and adapted to be connected to a line network, and a number of line circuits connected to the channel switch circuit. A number of first terminal adaptors are connected to the line circuits. Some of the first terminal adaptors are adapted to be connected to a commercial switched circuit, while one of the first trading call terminals is connected to one of the first terminal adapters. A number of second trading call terminals are at locations remote from the line control unit. A number of second terminal adaptors are connected to the second trading call terminals and are adapted to be connected to the commercial switched circuit to connect the channel switch circuit to the second trading call terminals. The line control unit transfers environmental information about the trading communication system through the first terminal adapters, the commercial switched circuit, and the second terminal adapters to the second trading call terminals.