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Doll system with resonant recognition

  • US 20080014830A1
  • Filed: 03/23/2007
  • Published: 01/17/2008
  • Est. Priority Date: 03/24/2006
  • Status: Abandoned Application
First Claim
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1. A doll system for associating accessories with a doll comprising:

  • a first doll accessory including an electronic circuit operable to produce an inductive return signal having a first frequency in response to a received inductive drive signal;

    a doll including;

    a doll body;

    a first sensor circuit mounted on the doll body and having a first input, a first output, and a first inductor, the first sensor circuit for transmitting inductively from the first inductor a first drive signal received on the first input, and outputting on the first output a first return signal received inductively on the first inductor;

    a second sensor circuit mounted on the doll body, and having a second input, a second output, and a second inductor, the second sensor circuit for transmitting inductively from the second inductor a second drive signal received on the second input, and outputting on the second output a second return signal received inductively on the second inductor;

    a drive circuit for producing the first and second drive signals;

    an output device adapted to produce a sensible output in response to an output signal; and

    a controller mounted to the doll body and coupled to the first and second sensor circuits and the drive circuit, selectively applying the first and second drive signals to the respective first and second inputs of the respective first and second sensor circuits;

    detecting on the first and second outputs of the respective first and second sensor circuits, the respective first and second return signals;

    determining if the return signal has a frequency that is the first frequency; and

    sending the output signal to the output device on determining that the return signal frequency is the first frequency.

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