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. 07, 1993
Filed:
Apr. 24, 1992
Toshihiko Umeda, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
In a method for controlling ISDN terminals connected to a passive bus conforming to an ISDN basic interface, the ISDN terminals being coupled to each other via a network, there are provided the following steps. A first step is to manage status of use of information channels in the passive bus by means of a communication server connected to the network. A second step is to send the communication server command data showing that the ISDN terminals will use the communication channels. A third step is to update management data showing the status of use of the information channels managed by the first step in response to receipt of the command data. A fourth step is to send updated management data showing the status of use of the information channels obtained after the command data is received to the ISDN terminals via the network.