×

Ultrasonic remote controlled switching device

  • US 4,924,564 A
  • Filed: 07/25/1989
  • Issued: 05/15/1990
  • Est. Priority Date: 07/25/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A low power consumption remote controlled electronic switching device comprising,a transducer means operative in response to a remote wave signal to generate an electrical signal,a first digital integrated semiconductor means having a plurality of inverters therein, said inverters being connected in parallel with a plurality of bias resistor means and in combination therewith to form a plurality of amplifier means, said amplifier means being operative to amplify in serial said electrical signal fed from said transducer means to said digital integrated semiconductor means,rectifier means operative to convert an amplified signal from said amplifier means to a direct current voltage signal,charging means operative to be charged by said direct current voltage signal.gating means operative in response to a selected charged voltage level of said charging means to actuate a second digital integrated semiconductor means for generating a square wave signal,a third digital integrated semiconductor means connected to said second digital integrated semiconductor means and operative to generate a drive signal,at least one semiconductor means responsive to receiving said drive signal at each instance from said third digital integrated semiconductor means to vary from an existing switch state to an opposite switch state.

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