Patents Assigned to CTA Communications, Inc.
  • Patent number: 7522918
    Abstract: A system and method for testing radio coverage of a land mobile radio system. The system configuration generally employs a fixed unit, a mobile unit and the two-way radio system (not part of the invention) subject to testing. The test system and method are compatible with any land-mobile radio system (conventional, trunked, using proprietary or standards-based protocols, FDMA or TDMA) operating in any frequency band. One of three methods may be selected to perform testing at any one time: continuous testing, grid testing or receive-only testing. In the continuous and grid modes, both the talk-out and talk-in paths are measured. Test results are recorded in a computer file after being converted to a digital format, and are compared to an original “reference file” via the Perceptual Evaluation of Speech Quality (PESQ) algorithm as defined by ITU-T standard P.862.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: April 21, 2009
    Assignee: CTA Communications, Inc.
    Inventors: John Robert Wachter, Kenneth Alan Ballard, Joseph D. Pociluyko
  • Publication number: 20070010241
    Abstract: A system and method for testing radio coverage of a land mobile radio system. The system configuration generally employs a fixed unit, a mobile unit and the two-way radio system (not part of the invention) subject to testing. The test system and method are compatible with any land-mobile radio system (conventional, trunked, using proprietary or standards-based protocols, FDMA or TDMA) operating in any frequency band. One of three methods may be selected to perform testing at any one time: continuous testing, grid testing or receive-only testing. In the continuous and grid modes, both the talk-out and talk-in paths are measured. Test results are recorded in a computer file after being converted to a digital format, and are compared to an original “reference file” via the Perceptual Evaluation of Speech Quality (PESQ) algorithm as defined by ITU-T standard P.862.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 11, 2007
    Applicant: CTA Communications, Inc.
    Inventors: John Wachter, Kenneth Ballard, Joseph Pociluyko