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System for enhancing auditory stimulation and the like

  • US 4,357,497 A
  • Filed: 05/26/1981
  • Issued: 11/02/1982
  • Est. Priority Date: 09/24/1979
  • Status: Expired due to Fees
First Claim
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1. A multi-frequency system for electrical stimulation of selected tissue groups comprising:

  • (a) transmission means for transmitting a plurality of carrier signals each of which is modulated by a signal representing a band of frequencies, said transmission means including a plurality of signal processing channels corresponding to the plurality of bands of frequencies in the audio range, each signal processing channel including a band-pass filter for selecting a band of audio frequency signals, means for compressing the dynamic ranges of said audio frequency signals, means for compensating the loudness of said audio frequency signals dependent upon their frequency; and

    a transmitter for modulating a carrier signal with the processed audio frequency signal;

    (b) multi-channel receiver means for receiving said transmitted signals with each receiving channel responsive to one of said transmitted signals;

    (c) electrode means for electrically contacting said selected tissue groups; and

    (d) means connecting a signal from each of said receiving channels to said electrode means whereby said electrode means provides electrical stimulation.

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