Patents by Inventor James A. Starkweather

James A. Starkweather 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: 6611197
    Abstract: A method for re-establishing communication between a base station (102) that transmits on a forward channel, and a subscriber unit (108) that has temporarily lost the forward channel, uses the concept of a re-registration interval. The base station (102) transmits, to subscriber units (106, 108) in its area, a signal indicating the duration of a re-registration interval. A subscriber unit that has temporarily lost the forward channel determines whether the duration of such loss exceeds the re-registration interval. If the interval is exceeded, the subscriber unit sends a re-registration signal to the base station on a reverse channel. A selective call transceiver (400) is programmed to operate as a subscriber unit that uses the re-registration interval.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: August 26, 2003
    Assignee: Motorola, Inc.
    Inventors: Douglas I. Ayerst, Robert Gary Goodman, James A. Starkweather
  • Patent number: 5710547
    Abstract: A method for re-establishing communication between a base station (102) that transmits on a forward channel, and a subscriber unit (108) that has temporarily lost the forward channel, uses the concept of a re-registration interval. The base station (102) transmits, to subscriber units (106, 108) in its area, a signal indicating the duration of a re-registration interval. A subscriber unit that has temporarily lost the forward channel determines whether the duration of such loss exceeds the re-registration interval. If the interval is exceeded, the subscriber unit sends a re-registration signal to the base station on a reverse channel. A selective call transceiver (400) is programmed to operate as a subscriber unit that uses the re-registration interval.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: January 20, 1998
    Assignee: Motorola, Inc.
    Inventors: Douglas I. Ayerst, Robert Gary Goodman, James A. Starkweather
  • Patent number: 4523310
    Abstract: A synchronous communications multiplexer for connecting a plurality of synchronous communications lines to an MP (multi-purpose) bus. In its basic form, the multiplexer is capable of handling bit oriented protocols (BOP) and is capable of being upgraded to support byte-oriented protocols. The present invention supports full- or half-duplex data rates of up to 19,200 baud. Total throughput, when operating with four ports (as an example), is in the range of 76.8 kbits/sec. A special mode of operation (unisync) allows operating a single port at 56 kbits/sec., full duplex. Other capabilities include software-selection of parameters (such as baud rate) and operation in a "transmitter queueing" mode of operation.
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: June 11, 1985
    Assignee: Gould Computer Systems Inc.
    Inventors: William H. Brown, James A. Starkweather, Hugh M. Humphreys