| 摘要 |
PROBLEM TO BE SOLVED: To provide a receiver for remotely controlling a toy by widely using an existing voice generator by using a specific sound as a driving control signal of the toy. SOLUTION: A microphone 11 of this receiver converts a received control signal sound into an electric signal. The electric signal converted by the microphone passes through a filter circuit 12 so that only a control signal of a specific frequency band is extracted. The filter circuit 12 removes a signal by an ordinary voice and surrounding noise generated together. The signal extracted by the filter circuit 12 is selected on the specific frequency band by a filter inside of a frequency selecting IC 13, and the electric signal is transmitted to an electric current amplifying circuit 15. The electric signal amplified by the electric current amplifying circuit 15 is outputted to a motor 16 being an operation part, and vertically moves an arm part. COPYRIGHT: (C)2004,JPO
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