Patents by Inventor Youichi Saitoh, deceased

Youichi Saitoh, deceased has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System for managing communications between adapters
    Patent number: 5815495
    Abstract: To efficiently diagnose local and remote adapters without using dedicated hardware in a communication network to which a plurality of terminals are connected through associated adapters, a local logical address which is different from logical addresses reserved for communication between the terminals, is assigned to communication with a local adapter, and a frame including the local logical address and a diagnostic command is transmitted to the local adapter. When a remote adapter is to be diagnosed, a frame including a logical address assigned to communication with a remote terminal associated with that remote adapter, a diagnostic command, and at least one invalid character, is sent out from the local adapter to the network.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: September 29, 1998
    Assignee: International Business Machines Corporation
    Inventors: Youichi Saitoh, deceased, Naotaka Aoki, Kian-Bon K. Sy