Patents Represented by Attorney Donald B. Southard

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  • Keypad including membrane with replaceable key elements
    Patent number: 5367133
    Abstract: A keypad (10) comprises a membrane having a plurality of switch actuating portions (41). The keypad (10) further comprises key portions (44) corresponding to said switch actuating portions (41) and located on an opposite side of the membrane to said switch actuating portions (41) and a plurality of switch elements (18) located beneath said switch actuating portions (41) of the membrane. The membrane extends across the keypad (10) and provides a water resistant barrier between the switch elements (18) and the key portions (44) of the membrane. Removable buttons (40) are provided for the keypad (10) and are attached to the key portions (44) of the membrane, whereby pressing of the buttons (40) causes flexing of the membrane and actuation of the switch elements (18) by the switch actuating portion of the membrane.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: November 22, 1994
    Assignee: Motorola, Inc.
    Inventors: Hans-Jurgen Schmidt, Klaus Lindner, Theo L. Eversloh
  • Data decoder and method for use therein using a dynamically indexed channel state metric
    Patent number: 5363413
    Abstract: A data decoder using a dynamically indexed channel state metric to decode symbols recovered from a channel that provides an index value corresponding to a signal strength indication less an average signal strength for a symbol time period, selects a channel metric, corresponding to the index value, from predetermined values, and weights a decoder decision for the symbol time period in accordance with the channel metric.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: November 8, 1994
    Assignee: Motorola, Inc.
    Inventor: Gus Vos
  • Portable radio two-way communications device
    Patent number: D350347
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: September 6, 1994
    Assignee: Motorola, Inc.
    Inventors: James L. Tracy, Phillip E. Lindeman
  • Battery charger for a personal wireless communicator
    Patent number: D351133
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: October 4, 1994
    Assignee: Motorola, Inc.
    Inventors: Polly S. Jungels-Butler, Mark B. Friesen, Daniel K. Harden
  • Mobile external radio modem
    Patent number: D351601
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: October 18, 1994
    Assignee: Motorola, Inc.
    Inventor: Roman P. Rak
  • Adapter accessory for radio packet modem
    Patent number: D352040
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: November 1, 1994
    Assignee: Motorola, Inc.
    Inventors: Roman P. Rak, William E. Fenton
  • Radio packet modem
    Patent number: D352289
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: November 8, 1994
    Assignee: Motorola, Inc.
    Inventor: Roman P. Rak
  • Pocket-size radio packet modem
    Patent number: D352290
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: November 8, 1994
    Assignee: Motorola, Inc.
    Inventor: Roman P. Rak
  • Remote connector assembly
    Patent number: D352499
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: November 15, 1994
    Assignee: Motorola, Inc.
    Inventor: Roman P. Rak
  • Microphone for use with a communications device
    Patent number: D352718
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: November 22, 1994
    Assignee: Motorola, Inc.
    Inventor: Phillip E. Lindeman
  • Radio frequency packet modem
    Patent number: D354280
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: January 10, 1995
    Inventor: William E. Fenton
  • Portable radio data terminal
    Patent number: D354742
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: January 24, 1995
    Assignee: Motorola
    Inventor: Robert W. Hamilton
  • Battery pack for a portable two-way radio communications device
    Patent number: D355637
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: February 21, 1995
    Assignee: Motorola
    Inventors: James L. Tracy, Phillip E. Lindeman
  • Telephone handset top for mobile cellular telephone
    Patent number: D355910
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: February 28, 1995
    Assignee: Motorola
    Inventor: Phillip E. Lindeman
  • Portable data terminal
    Patent number: D356299
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: March 14, 1995
    Assignee: Motorola
    Inventors: Robert Hamilton, Roman P. Rak, Mark Harold
  • Portable magnetically attachable antenna
    Patent number: D356314
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: March 14, 1995
    Assignee: Motorola
    Inventors: Bernard J. Rich, Phillip E. Lindeman
  • Front housing control panel for a radio base station controller
    Patent number: D358155
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: May 9, 1995
    Assignee: Motorola
    Inventors: Roman P. Rak, Kenneth N. Lam
  • Radio unit adaptable for coupling to a modem
    Patent number: D359732
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: June 27, 1995
    Assignee: Motorola, Inc.
    Inventors: Kenneth Nim-PunLam, Tateshi Yamada, Yui K. Chan
  • Radio programming memory unit with storage capability
    Patent number: D360631
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: July 25, 1995
    Assignee: Motorola, Inc.
    Inventors: Robert G. Uskali, David M. Meyers
  • Interface for a mobile data terminal
    Patent number: D364859
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: December 5, 1995
    Assignee: Motorola, Inc.
    Inventors: William E. Fenton, Roman P. Rak