Rodent repellent device of random working frequency

Details Rodent repellent device of random working frequency Rodent repellent device of random working frequency

2007-09-25

2007-09-25

Pihulic, Daniel (Department: 3662)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Mechanical modification or sensing of storage medium

Reexamination Certificate

active

11156724

ABSTRACT:
A rodent repellent device of random working frequency is disclosed, which comprises: an application-specific integrated circuit (ASIC); a deterring module, electrically connected to the ASIC, capable of emitting a wave emission selected from the group consisting of an ultrasonic wave, a seismic wave and a sound, being used for repelling rodents; and a power source, electrically connected to the ASIC, for providing power to the ASIC and the deterring module. Wherein the ASIC further comprises: an internal precision oscillator; a center processing unit (CPU); a wake-up module, being employed as an activation means for enabling the rodent repellent device to have randomized lasting time of wave emission and randomized intermission between two consecutive wave emissions; a read-only memory (ROM), for storing a program controlling the randomization of each intermission between two consecutive wave emissions and the lasting time of each wave emissions; and a random-access memory (RAM).

REFERENCES:
patent: 4366562 (1982-12-01), McGinty
patent: 5205066 (1993-04-01), Jan
patent: 6166996 (2000-12-01), Grissom et al.
patent: 6845062 (2005-01-01), Niezrecki et al.
Short; Microprocessors and Programmed Logic; 1981; pp. 12-13.

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