Patents by Inventor Pha C. Nguyen

Pha C. Nguyen 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: 7236134
    Abstract: A Proximity Coupled-Folded-J Antenna PC-FJA (104) includes a ground plane (240), first resonant element (352) with a “J” shape that resonates at a first radio frequency, a second resonant element (350) positioned within the “J” shape and that resonates at a second radio frequency, and a third resonant element (118) with a portion that is substantially parallel to and removed from the plane of the “J” shape and that resonates at a third radio frequency. The PC-FJA (104) has a fourth resonant element (130) with a loop (132) in a plane perpendicular to and removed from the plane of the “J” shape. The fourth resonant element (130) resonates at a fourth radio frequency. These elements are ohmically coupled to a connection arm (108). The ground plane (240) is removed from PC-FJA (104) and is perpendicular to the plane of the “J” shape.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: June 26, 2007
    Assignee: Motorola, Inc.
    Inventors: Stanislav Licul, Pha C. Nguyen, Lorenzo A. Ponce De Leon
  • Patent number: 5280296
    Abstract: An antenna system (308, 309, 310, 312, 314, 316, and 317) for a wrist carried selective call receiver (300) comprises at least first (312 and 314) and second (310) elements, coupled to each other and coupled to the selective call receiver to form a first single magnetic loop antenna (312, 308, 316, and 310) having a first physical orientation. At least one of the first and second elements comprises at least one second single magnetic loop antenna (312, 308, 316, 310, 317, 309, and 314) also coupled to the selective call receiver. The second single magnetic loop antenna has a second physical orientation different from the first physical orientation.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: January 18, 1994
    Assignee: Motorola, Inc.
    Inventors: Wei L. Tan, Pha C. Nguyen, Angel Bolanos
  • Patent number: 5252964
    Abstract: A non-contact pager programming system includes a controller (30) which is responsive to command and data signals to generate first signals (34) including command and data words to govern a transmitting circuit (36) to transmit over the air a programming signal (46) digitally modulated in accordance with a reception protocol. The programming system may also include a receiving circuit (42) which is governed by at least one second signal (40) generated by the controller to receive over-the-air signals (52) generated by the pager being programmed in response to the programming signal.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: October 12, 1993
    Assignee: Motorola, Inc.
    Inventors: William W. L. Tan, Pha C. Nguyen, Pamela A. Rakolta, Silvia M. Viteri, Gary L. Pace