The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 1994
Filed:
Jun. 16, 1993
Daniel A Custer, Southborough, MA (US);
Dogwatch, Inc., Wayland, MA (US);
Abstract
An apparatus for confining the movement of an animal to a defined area includes a transmitter that generates a continuous, coded radio signal through an antenna defining the area. The transmitter can variably modify the amplitude of the continuous, coded radio signal and variably modify the code of the continuous, coded radio signal, thereby modifying the type and rate of a stimulus provided to the animal. The apparatus also has a portable radio receiver for detecting the amplitude of the continuous, coded radio signal and for decoding the continuous, coded radio signal for the rate and type of stimulus provided to the animal. The portable radio receiver is attached to the animal and is positioned for delivering the stimulus to the animal in response only to the detected continuous, coded radio signal.