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Tone code identification system

  • US 4,999,621 A
  • Filed: 07/27/1989
  • Issued: 03/12/1991
  • Est. Priority Date: 07/27/1989
  • Status: Expired due to Fees
First Claim
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1. An identification system for identifying registered owners of activatable, portable articles of personal property of the type having a sound emitter, said system comprising:

  • (a) means for incorporating unique identification codes with the articles, each code being a different combination of symbols indicative of a registered owner of a respective article; and

    (b) audible tone means for energizing each sound emitter to emit a unique plurality of audible tones upon activation of the respective article, each audible tone corresponding to a respective symbol of the corresponding code incorporated with the respective article, the emission of the audible tones serving as an auditory notification that the respective article has a registered owner.

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