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Audio-visual education system using movable toys

  • US 6,519,444 B1
  • Filed: 06/06/2001
  • Issued: 02/11/2003
  • Est. Priority Date: 12/17/1998
  • Status: Expired due to Fees
First Claim
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1. An audio-visual education system using movable toys, the system comprising:

  • a sound signal regenerative apparatus for regenerating sound signals and various control signals recorded on a recording medium;

    a plurality of movable toys manufactured to move their mouth, hands, feet, or body by power;

    a multichannel radio transmitter mounted on a stereo output terminal of the sound signal regenerative apparatus, the radio transmitter separating sound signals, call signals, and movement control signals on specific movable toys, and radio transmitting the signals, wherein the radio transmitter includes;

    a first signal separator for separating analog sound signals and digital call signals and movement control signals from complex output signals output from the stereo output terminal of the sound signal regenerative apparatus;

    a first and a second RF modulator for converting the analog sound signals and the digital call signals and the movement control signals, respectively output from output terminals of the first signal separator, into radio frequency;

    a first and a second amplifier for amplifying each of the signals converted into radio frequency to a prescribed level; and

    a first and a second radio output unit for transmitting each of the output signals from the first and second amplifiers through antennas;

    a radio receiver mounted in each of the movable toys, the radio receiver configured to receive the signals transmitted from the radio transmitter, the radio receiver configured to control the specific movable toy according to the received signals to output sound signals and/or move at least one of the toy'"'"'s mouth, hands, feet, or body when the specific movable toy is called by the call signal from the radio transmitter; and

    a speaker mounted in each of the movable toys for outputting the sound signal received from the radio receiver.

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