Patents by Inventor Bruno Sappa

Bruno Sappa 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).

  • Data transmission system with a link problem determination aid (LPDA) support for all ports
    Patent number: 5220663
    Abstract: According to the invention, a data transmission system is provided with apparatus which enables the problem determination requests from any ports of the multiplex modems (18) to be processed. When a link event is detected on a port or when a solicited command is received from a host network management facility computer (10), the network control program (NCP) in the communication controller (16) checks with the associated link configuration data as to whether the involved port is port A. If is not port A, NCP looks for port A which has the same NCP correlation number as the involved port. Then, the LPDA message can be sent through port A and can reach the remote corresponding port A if necessary.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: June 15, 1993
    Assignee: International Business Machines Corp.
    Inventors: Frederic Bauchot, Bruno Sappa, Victor Spagnol