Patents by Inventor Wei L. Tan

Wei L. Tan 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: 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: 5132697
    Abstract: A wrist band loop antenna for a device having a receiver which is intended to be worn on a wearer's wrist comprises a pair of wrist band loop segments which are coupled to the receiver for forming first and second electrical portions of the wrist band loop antenna. A conductive clasp couples to the first and second wrist band loop segments to provide adjustment of the length of the wrist band and provides electrical coupling between first and second wrist band loop segments to form the wrist band loop antenna. An insulator is provided to insulate the conductive clasp from the wearer's wrist which is coupled to the lower surface of the clasp.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: July 21, 1992
    Assignee: Motorola, Inc.
    Inventor: Wei L. Tan