×

METHOD AND APPARATUS FOR HEARING BY BIODETECTION AND BIOTRANSDUCTION OF RADIOFREQUENCY ENERGY

  • US 3,586,791 A
  • Filed: 12/23/1969
  • Issued: 06/22/1971
  • Est. Priority Date: 12/23/1969
  • Status: Expired due to Term
First Claim
Patent Images

1. In an apparatus for electrically stimulating hearing in human subjects, the combination of a. a signal source for supplying carrier wave signals at a frequency above the normal audible range of the subject, b. a second signal source for supplying audiofrequency signals, c. means modulating said carrier wave signals with said audiofrequency signals and having an output comprising a modulated Lc series source, and d. a tuning and coupling circuit adapted to connect the subject to said modulated signal source in tuned LC series resonance, e. said tuning and coupling circuit including a pair of capacitive coupling means, f. said tuning and coupling circuit further including a pair of inductance means each of which is connected in series with each coupling means, g. the inductance of said inductance means being related to the capacitance of said coupling means and the capacitance of said subject so as to tune said modulated signals in peak series resonance substantially at said carrier wave frequency regardless of changes in the physiology of the subject.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×