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:
Dec. 19, 1989
Filed:
May. 13, 1988
Fumihiro Ogasawara, Yamato, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A communication control method of a communication system including a network, such as an ISDN network, and a plurality of main interconnection buses connected to the network through respective connecting units. A plurality of terminal apparatuses are operatively connected to each of the main interconnection buses. Each bus is provided with a signal channel, which is shared by the plurality of terminal apparatuses connected to the bus for call connection with the network, and at least one information channel for transmission of information in a multiplex format. In accordance with the principle of the present invention, when all of the information channels are occupied or in use, the signal channel is temporarily used as an additional information channel to thereby allow the other terminal apparatuses to carry out transmission of information.