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:
Mar. 01, 1994
Filed:
Jun. 12, 1991
Mihoji Tsumura, Osaka, JP;
Masato Hata, Osaka, JP;
Ricos Co., Ltd., , JP;
Abstract
A device which enables two or more users of outside lines to converse on equal terms with each other. The connection method provides a distributed form of processing. The outside lines are connected to corresponding voice signal lines which intersect with two-party conference lines which serve as connectors for two voice signal lines, and multiple party conference lines which serve as connectors for three or more voice signal lines. Connection is possible at any intersection point. The device is also fitted with a conference line selection signal decoder to enable connection of a voice signal line with a specific conference line as specified by an incoming signal. Exclusion control lines are fitted to prevent the connection of more than two voice signal lines to the same two-party conference line. The voice signal lines are connected to a voice processor to enable the output of voice signals to an outside line.