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Portable telephone maraca which produces musical tones in synchronization of the swings and vibration of the user

  • US 6,597,928 B2
  • Filed: 07/19/2002
  • Issued: 07/22/2003
  • Est. Priority Date: 01/25/2000
  • Status: Expired due to Fees
First Claim
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1. A portable telephone having a communicator for receiving and transmitting signals with base stations by radio communication to secure conversation with an external telephone terminal, comprising:

  • a vibration motor for applying vibration to the portable telephone at reception of an incoming call, wherein the vibration motor generates counter-electromotive force when vibrated;

    a musical tone generator for generating musical tones of a prescribed musical tune;

    a rhythm sound signal generator for generating rhythm sound signals in synchronization with the musical tones of the prescribed musical tune;

    a rhythm difference detector for detecting timing differences between outputs of the vibration motor corresponding to the counter-electromotive force and the rhythm sound signals;

    a scorer for marking a score based on the timing differences detected by the rhythm difference detector; and

    a display for displaying the score on a screen thereof.

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