Patents by Inventor Selwyn E. Hill

Selwyn E. Hill 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: 6353606
    Abstract: There is disclosed a launch delay controller, for use in a wireless messaging system having a defined coverage area. The launch delay controller controls the transmission of paging messages from a plurality of transmitters in the wireless messaging system. The launch delay controller comprises: 1) a memory capable of storing a) a delay spread associated with a selected point in the coverage area between a first signal transmitted by a first of the plurality of transmitters and a second signal transmitted by a second of the plurality of transmitters, and b) distances between the selected point and the first and second transmitters; and 2) a processor capable of determining from the delay spread and the distances an offset delay, wherein the offset delay is used by the first transmitter to delay a transmission of the first signal with respect to a transmission of the second signal, the delayed transmission of the first signal thereby reducing the delay spread.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: March 5, 2002
    Assignee: Weblink Wireless, Inc.
    Inventors: Selwyn E. Hill, Chi-Ming Chang
  • Patent number: 6097930
    Abstract: There is disclosed a launch delay controller, for use in a wireless messaging system having a defined coverage area. The launch delay controller controls the transmission of paging messages from a plurality of transmitters in the wireless messaging system. The launch delay controller comprises: 1) a memory capable of storing a) a delay spread associated with a selected point in the coverage area between a first signal transmitted by a first of the plurality of transmitters and a second signal transmitted by a second of the plurality of transmitters, and b) distances between the selected point and the first and second transmitters; and 2) a processor capable of determining from the delay spread and the distances an offset delay, wherein the offset delay is used by the first transmitter to delay a transmission of the first signal with respect to a transmission of the second signal, the delayed transmission of the first signal thereby reducing the delay spread.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: August 1, 2000
    Assignee: Weblink Wireless, Inc.
    Inventors: Selwyn E. Hill, Chi-Ming Chang