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:
May. 01, 2001
Filed:
Jun. 11, 1997
Taro Tokuhiro, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
A data transfer system is constructed for transferring data by routing from primary nodes to secondary nodes through a plurality of channels. In the system, one primary node is comprised of a setup device, a backup device, a routing device and a transmitting device. The setup device automatically tries to secure an exclusive access to a default channel which is initially allotted to said one primary node when the same sets up the routing. The backup device alternatively secures an access to a substitute channel when the setup device fails to secure the exclusive access to the default channel due to conflict with another primary node which is allotted the same default channel. The routing device circulates a message directed to a secondary node to notify thereto the substitute channel secured by the one primary node in place of the default channel, and consequently establishes the routing between the one primary node and the secondary node. The transmitting device routinely transfers data to the secondary node through the substitute channel after the secondary node recognizes that the one primary node secures the substitute channel for communication with the secondary node.