×

Sound emitting device for behavior modification

  • US 5,061,918 A
  • Filed: 09/28/1990
  • Issued: 10/29/1991
  • Est. Priority Date: 10/02/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for modifying the undesirable behavior of animals, comprising the steps of:

  • periodically right-shifting the contents of a shift register comprising a plurality of binary storage locations, such that for each periodic right-shift, the binary value stored in each location of said shift register is shifted one location to the right, the binary value of the left-most location being set to zero;

    detecting episodes of undesirable behavior comprising repeated occurrences of said undesirable behavior in succession;

    generating an activation signal each time an episode of undesirable behavior is detected;

    storing a record of each activation signal in the left-most and second left-most of said plurality of binary storage locations in said periodically shifting shift register, said record comprising a one and a zero, respectively, in said left-most and second left-most locations, such that the location in said shift register of a given stored record of a given activation signal in said shift register is at any time determined by the time of detection of an episode of undesirable behavior corresponding to said given activation signal and by the rate of periodic shifting of said shift register;

    circulating the contents of the shift register once, at a fast rate, a predetermined time after generation of each activation signal; and

    producing a composite audio pulse during each said fast circulation of the shift register;

    wherein the composite pulse comprises a sequence of decrescent audio impulses of a predetermined frequency, the temporal pattern and number of impulses in the sequence being determined by the the respective locations of said stored records of activation signals in the shift register;

    and wherein said composite pulse having a frequency and intensity known to be distracting to animals, such that animals are discouraged from exhibiting said undesirable behavior when said composite pulse is produced.

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