Patents by Inventor Yasufumi Nagayama

Yasufumi Nagayama 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).

  • Computer-telephone integrated system, switching control apparatus and storage medium
    Patent number: 6707899
    Abstract: A computer-telephone integrated system includes a switch engine carrying out a switching control, devices coupled to the switch engine, a service request part requesting a telephone switching service with respect to the switch engine, and a service request process/call information notifying part providing an interface function between the switch engine and the service request part. The service request process/call information notifying part processes a switching service request from the service request part to the switch engine, and notifies call information related to the devices and the switch engine from the switching engine to the service request part. The call information includes information related to states of the devices and information related to a connection of a path between the switch engine and the devices.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: March 16, 2004
    Assignee: Fujitsu Limited
    Inventors: Takahiro Saito, Yasufumi Nagayama
  • COMPUTER-TELEPHONE INTEGRATED SYSTEM, SWITCHING CONTROL APPARATUS AND STORAGE MEDIUM
    Publication number: 20020057777
    Abstract: A computer-telephone integrated system includes a switch engine carrying out a switching control, devices coupled to the switch engine, a service request part requesting a telephone switching service with respect to the switch engine, and a service request process/call information notifying part providing an interface function between the switch engine and the service request part. The service request process/call information notifying part processes a switching service request from the service request part to the switch engine, and notifies call information related to the devices and the switch engine from the switching engine to the service request part. The call information includes information related to states of the devices and information related to a connection of a path between the switch engine and the devices.
    Type: Application
    Filed: March 9, 1999
    Publication date: May 16, 2002
    Inventors: TAKAHIRO SAITO, YASUFUMI NAGAYAMA