Abstract: A custom-shaped wireless fence system is provided that contains one or more dogs in a user-defined containment area without the need for a physical fence or underground wire. The system, which is easy to set up and use, includes at least three base units and at least one collar and, preferably, a remote controller. Each of the base units and the at least one collar includes a component for reducing clock speed variation between the base and collar units, preferably to +/?5 ppm, to effectively eliminate communication errors between the base and collar units.

Abstract: A radial-shaped wireless fence system is provided that contains one or more dogs in a user-defined area without the need for a physical fence or underground wire. The system includes a base unit and at least one collar, and is easy to set up and use. Each of the base unit and the one collar include a component for reducing clock speed variation between the base and collar units, preferably to +/?5 ppm, to effectively eliminate communication errors between the base and collar units.

Abstract: A custom-shaped wireless fence system is provided that contains one or more dogs in a user-defined containment area without the need for a physical fence or underground wire. The system, which is easy to set up and use, includes at least three base units and at least one collar and, preferably, a remote controller. Each of the base units and the at least one collar includes a component for reducing clock speed variation between the base and collar units, preferably to +/?5 ppm, to effectively eliminate communication errors between the base and collar units.

Abstract: A radial-shaped wireless fence system is provided that contains one or more dogs in a user-defined area without the need for a physical fence or underground wire. The system includes a base unit and at least one collar, and is easy to set up and use. Each of the base unit and the one collar include a component for reducing clock speed variation between the base and collar units, preferably to +/?5 ppm, to effectively eliminate communication errors between the base and collar units.

Abstract: A custom-shaped wireless fence system is provided that contains one or more dogs in a user-defined containment area without the need for a physical fence or underground wire. The system, which is easy to set up and use, includes at least three base units and at least one collar and, preferably, a remote controller. Each of the base units and the at least one collar includes a component for reducing clock speed variation between the base and collar units, preferably to +/?5 ppm, to effectively eliminate communication errors between the base and collar units.

Abstract: A radial-shaped wireless fence system is provided that contains one or more dogs in a user-defined area without the need for a physical fence or underground wire. The system includes a base unit and at least one collar, and is easy to set up and use. Each of the base unit and the one collar include a component for reducing clock speed variation between the base and collar units, preferably to +/?5 ppm, to effectively eliminate communication errors between the base and collar units.

Abstract: A radial-shaped wireless fence system is provided that contains one or more dogs in a user-defined area without the need for a physical fence or underground wire. The system includes a base unit and at least one collar, and is easy to set up and use. Each of the base unit and the one collar include a component for reducing clock speed variation between the base and collar units, preferably to +/?5 ppm, to effectively eliminate communication errors between the base and collar units.

Abstract: A security tag for use with an electronic security system which functions within a second frequency range comprises a substantially planar dielectric substrate having first and second sides. A first conductive pattern is provided on the first side of the substrate, the first conductive pattern comprising at least a first inductive element, a first plate of a first capacitive element and a first plate of a second capacitive element. A second conductive pattern located on the second side of the substrate comprises at least a second inductive element, a second plate of the first capacitive element and a second plate of a second capacitive element with the plates of the capacitive elements being generally aligned. The inductive elements and the capacitive elements form a resonant circuit which resonates at a first frequency within a first frequency range which is outside of the second frequency range.