Patents by Inventor David Phillip Silverman

David Phillip Silverman 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).

  • Patent number: 5664003
    Abstract: In a personal reach telephone service in which a calling party's telephone call to a personal reach telephone number of a called party is bridged to a return call placed by the called party in response to a page, a connection is established between bridging and signaling equipment associated with the interexchange network, to which the calling party's call is directed, and the home PBX associated with the called party. The called party, in responding to the page, and if local to the PBX, calls into his home PBX where this return call and the calling party's call are bridged together.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: September 2, 1997
    Assignee: AT & T
    Inventors: Mark Jeffrey Foladare, Shelley B. Goldman, David Phillip Silverman, Roy Philip Weber
  • Patent number: 5646589
    Abstract: In a noisy environment, e.g., a car traveling down the road with the radio playing, a user who prefers that his pager provide him with an audible alert in response to an actuation of the pager may not be able to hear such an audible alert supplied by the pager. To overcome this difficulty, a pager that is set to an audible alert mode is arranged to change its alerting for a particular actuation of the pager from audible to tactile only when the ambient sound level of the environment in which the pager is located is greater than a predetermined threshold level. For each actuation of the pager that the ambient sound level in the environment in which the pager is located is less than the predetermined threshold level, the pager alerts audibly. Optionally, if the pager also determines that it is no longer being worn on the person of a user, the pager alerts audibly regardless of whether the ambient sound level is greater than the predetermined threshold level.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: July 8, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Nancy Murray, David Phillip Silverman