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RBDS receiver provided with a database having broadcasting station related information

  • US 5,898,910 A
  • Filed: 02/09/1996
  • Issued: 04/27/1999
  • Est. Priority Date: 02/16/1995
  • Status: Expired due to Fees
First Claim
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1. An RBDS receiver provided with a database having broadcasting station related information, comprising:

  • read-only database memory in which a broadcasting station related data has been previously stored respectively in association with geographical positional information, the broadcasting station related data having at least three kinds of data including a station identification data for identifying a broadcasting station, a program identification data for indicating the type of a program provided by the broadcasting station, and reception frequency data on broadcast waves emitted from the broadcasting station;

    demodulating means for demodulating an RBDS data from received broadcast waves;

    a randomly accessible database supplementary memory;

    station selection memory for storing an indication of whether received broadcast waves are RBDS broadcast waves; and

    control means for comparing the contents of said RBDS data with the contents of said broadcasting station related data and the data stored in said supplementary memory and for controlling the writing of said RBDS data into said supplementary memory if a broadcasting station indicated by said RBDS data is not coincident with any of broadcasting stations indicated by said broadcasting station related data and the data stored in said supplementary data.

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