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. 21, 1989
Filed:
Mar. 18, 1988
Kazunori Hoshi, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A node apparatus is used in a communication network having a multi-conjunction architecture. The communication network has a plurality of transmission paths each coupling one node apparatus to another node apparatus or a terminal device. The node apparatus generally comprises an input port, an output port, and a control part for controlling the coupling of input channels of the input port to output channels of the output port. The control part disconnects and releases a fixed communication path when no signal is present at the input and output channels of the input and output ports for a first time period after the communication path is fixed, and initializes the node apparatus when no signal is present at the input and output channels of the input and output ports for a second time period before the communication path is fixed. In the initial state, each input channel other than input channels included in the fixed communication path is coupled to all of the output channels other than an output channel having a corresponding channel number.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile