Patents by Inventor John William Arens

John William Arens 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).

  • Transceiver and associated method for surviving fades
    Patent number: 5930268
    Abstract: A time-framed communications transceiver maintains synchronization through fade conditions by resetting a counter (640) whenever new synchronization parameters are stored in a memory (630) based on bursts detected by a receiver (610) and a burst synchronizer (620). A transmitter (690) transmits bursts based upon the synchronization parameters in the memory (630) when the time counter (640) has not exceeded a predetermined period of time. The receiver (610) re-establishes the synchronization parameters in the memory (630) when the time counter exceeds another, longer predetermined period of time before transmission by the transmitter (690).
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: July 27, 1999
    Assignee: Motorola, Inc.
    Inventors: Christopher Neil Kurby, John William Arens, Kathleen Helen Ryan
  • Method and apparatus for bi-directional power control in a digital communication system
    Patent number: 5768684
    Abstract: In a method and apparatus for maintaining a minimum transmission power level between two communication stations, each station measures the other's received signal quality, and returns an indication of signal quality as part of a regular maintenance burst. Each station adjusts its own transmission power level based on the returned signal quality indication. The signal quality indication is based on the received ratio of bit energy to total noise power spectral density which is calculated from an estimated bit-error-rate.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: June 16, 1998
    Assignee: Motorola, Inc.
    Inventors: Jerrold Lee Grubb, Stanley William Attwood, John William Arens
  • Soft decision digital communication method and apparatus
    Patent number: 5706313
    Abstract: A decoding apparatus (200) decodes a coherent, differentially encoded multi-level phase shift keying (DEPSK) modulated signal. A coherent receiver (101) receives and, subsequently, outputs the coherent DEPSK modulated signal to a metric computer (201). The metric computer (201) generates a soft decision metric .LAMBDA.(s(n)) corresponding to the coherent DEPSK modulated signal which is outputted to a forward error correction (FEC) decoder (107). The FEC decoder (107) decodes the coherent DEPSK modulated signal in accordance with the soft derision metric .LAMBDA.(s(n)) corresponding to the coherent DEPSK modulated signal.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: January 6, 1998
    Assignee: Motorola, Inc.
    Inventors: Dariusz Andrzej Blasiak, John William Arens