Patents by Inventor Kiyomi Otake

Kiyomi Otake 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).

  • Voice monitoring system for remote subscribers
    Patent number: 6084948
    Abstract: The present invention provides a voice monitoring system for remote subscribers, which enables voice monitoring for even those calls which are set in speech mode after connected by drop-back in remote local equipment without the intervention of a time division switch in a telephone network. The voice monitoring system for remote subscribers offered by this invention is intended for voice monitoring for subscribers accommodated by remote local equipment connected to a time division switch in a telephone network.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: July 4, 2000
    Assignee: NEC Corporation
    Inventor: Kiyomi Otake