05682839 is referenced by 135 patents and cites 6 patents.

A system (10) for confining an animal (18) in an area (16) defined by a boundary signal. The system includes a transmitter (22; 22A) to generate the boundary signal and an emitter such as a wire (20) to define area (16). The system also includes a receiver (26; 26A; 200; 200A) to be carried on the animal's neck. The receiver includes three selectively monitored and orthogonally-positional antennas (30, 32, 34; 202, 204, 206) to avoid missing a boundary signal. The receiver further includes code-detecting, duration monitoring and/or signal-strength circuitry (270) to control giving a shock to the animal. Further, the receiver is duty-cycled to conserve battery power (56). The shock is communicated via a conductive compliant tip (532) to reduce discomfort to the animal. The transmitter includes circuitry (64) to include a code in the boundary signal, and an isolation transformer (102) to protect the transmitter from energy strikes, such as lightning, at the emitter (20).

Title
Electronic animal confinement system
Application Number
92084
Publication Number
5682839
Application Date
October 23, 1995
Publication Date
November 4, 1997
Inventor
Paul M Allen
Cinncinnati
OH, US
Timothy A Coomer
Cinncinnati
OH, US
Dale A Teets
Mason
OH, US
Richard L Grimsley
Cincinnati
OH, US
Agent
Wood Herron & Evans L
Assignee
Perimeter Technologies Incorporated
OH, US
IPC
A01K 29/00
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