Patents Represented by Attorney James L. Kesterson
  • Patent number: 5056139
    Abstract: A communication receiver (12) is provided having a radio frequency section (20) for receiving a communication signal (14) and a corresponding code signal (16) carrying an identification code. An intermediate frequency section (26) is coupled to radio frequency section (20) to convert the frequency of said communication signal. A decoder (42) having a memory for storing a security code, is coupled to radio frequency section (20) and intermediate frequency section (26). Decoder (20) is operable to compare the identification code and the security code and selectively disable the intermediate frequency section in response.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: October 8, 1991
    Assignee: Texas Instruments Incorporated
    Inventor: David E. Littlefield