| 摘要 |
<p>A pet containment system uses a transmitter for transmitting a series of modulated electromagnetic signals, and a receiver removably attached to the pet for receiving the transmitted signals. The receiver includes at least one receiving antenna (32), means (58) for comparing the signal level of the received signals with a predetermined level (60) and for producing an electronic indication of a loss of signal, means (44) for comparing the phase of the received signals with a reference phase and for producing an electronic indication of loss of phase, means (62) for producing a warning stimulus to the pet, and means (64) for producing a control stimulus to the pet. Also disclosed is a method for producing an area for the containment of a pet.</p> |
