| 摘要 |
An pet door security system which includes a locking device (26) coupled to one or more sensors (28, 30, 32, 34) for detecting a change in the local magnetic field caused by one or more magnets (54) located on a pet's collar (52), or a change in the impedance in a reference circuit caused by a resonant circuit located on a pet's collar, or a specified color on the pet's collar.
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| 申请人 |
GLOW DOG, INC.;MARCUS, BETH, A.;FONTANA, RICHARD, R.;CORCORAN, CHRISTOPHER, J. |
发明人 |
MARCUS, BETH, A.;FONTANA, RICHARD, R.;CORCORAN, CHRISTOPHER, J. |
