×

RF identification system for use in toys

  • US 6,364,735 B1
  • Filed: 03/08/2000
  • Issued: 04/02/2002
  • Est. Priority Date: 08/13/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A toy comprising:

  • a variable frequency RF oscillator, said variable frequency RF oscillator generating a plurality of frequencies; and

    at least one remotely identifiable object, said at least one remotely identifiable object comprising at least one tank circuit, said at least one tank circuit comprising an inductor, said inductor capable of inductively coupling to said variable frequency RF oscillator, wherein current drawn by said variable frequency RF oscillator is at a substantial minimum when said inductor is inductively coupled to said variable frequency RF oscillator and a frequency of said plurality of frequencies generated by said variable frequency RF oscillator is substantially equivalent to a resonant frequency of said at least one tank circuit.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×