×

Auditory subliminal message system and method

  • US 4,395,600 A
  • Filed: 11/26/1980
  • Issued: 07/26/1983
  • Est. Priority Date: 11/26/1980
  • Status: Expired due to Term
First Claim
Patent Images

1. An auditory subliminal message system for an area comprising:

  • ambient audio signal processing circuit means adapted to receive an input representing ambient audio signals in the area, said ambient signal processing means comprising means for producing a control signal output which continuously varies with variations in the received input and thereby with variations in the ambient audio signals in the area; and

    subliminal message control circuit means having a first input adapted to receive an auditory subliminal message signal, said control circuit means having a second input coupled to said ambient signal processing means for receiving said control signal output, and said control circuit means comprising means for continuously adjusting the amplitude of the received auditory subliminal message signal and for producing an adjusted output signal comprising the amplitude adjusted auditory subliminal message signal, the adjusted output signal being adapted for transmission to the area and having an amplitude which varies in response to said control signal so as to increase with increases in amplitude of ambient audio signals in the area and decrease with decreases in amplitude of ambient audio signals in the area.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×