Patents by Inventor Philip Mac Walker

Philip Mac Walker 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: 9000987
    Abstract: A multi-band antenna component is provided. The multi-band antenna component comprises a carrier, a first antenna array, and a second antenna array. The carrier is composed of a ceramic material characterized by a permittivity of at least about 6, said carrier having a first region and a second region distinct from the first region. The first antenna array is disposed on the first region and comprises one or more antennas selected from the group consisting of a first antenna adapted for about 2.4 GHz wireless communication, a second antenna adapted for about 5 GHz wireless communication, and a third antenna adapted for wireless communication for a global positioning system. The second antenna array is disposed on the second region and comprises at least one of a fourth antenna adapted for about 850 MHz wireless communication or a fifth antenna adapted for about 1800/1900 MHz wireless communication.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: April 7, 2015
    Assignee: BlackBerry Limited
    Inventors: Ren Yu-Jiun, Seong Heon Jeong, James Paul Warden, Philip Mac Walker
  • Publication number: 20130307751
    Abstract: A multi-band antenna component is provided. The multi-band antenna component comprises a carrier, a first antenna array, and a second antenna array. The carrier is composed of a ceramic material characterized by a permittivity of at least about 6, said carrier having a first region and a second region distinct from the first region. The first antenna array is disposed on the first region and comprises one or more antennas selected from the group consisting of a first antenna adapted for about 2.4 GHz wireless communication, a second antenna adapted for about 5 GHz wireless communication, and a third antenna adapted for wireless communication for a global positioning system. The second antenna array is disposed on the second region and comprises at least one of a fourth antenna adapted for about 850 MHz wireless communication or a fifth antenna adapted for about 1800/1900 MHz wireless communication.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 21, 2013
    Applicant: Research In Motion Limited
    Inventors: Ren Yu-Jiun, Seong Heon Jeong, James Paul Warden, Philip Mac Walker
  • Patent number: 5881069
    Abstract: A method (400) for error correction processing of a repeat message in a messaging system where each repeat message contains errors in different portions of the repeat message includes the steps in a portable subscriber unit (122) of receiving a first copy containing a first set of errors (402) and receiving a subsequent copy containing a subsequent set of errors (406). A comparison (410) between the first set and subsequent set of errors is done to eliminate (412) any non-recurring errors in forming an error reduced message. The error reduced message is corrected as necessary if an nth copy of the repeat message is received and if errors remain in the error reduced message by comparing a set of remaining errors in the error reduced message with an nth set of errors found in the nth copy of the repeat message to eliminate any further non-recurring errors.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: March 9, 1999
    Assignee: Motorola, Inc.
    Inventors: Gregory Lewis Cannon, Philip Mac Walker