Fecha de publicación: 07/02/2013 Fuente: WIPO "royal booby" A pet door kit comprising a mat transmitter transmitting a first electronic signal to a kit control signal transceiver when a weight sensor is triggered during a user-selected time interval of a clock, said kit control signal transceiver activates a random number generator upon receipt of said first signal, said random number generator activates a timer for a time determined by a random number generated by said random number generator, and after said time is lapsed, said control signal transceiver sends a second electronic signal to said control signal receiver and to a speaker sound control mechanism, and said control signal receiver activates a state controller to activate said unlocked state upon receipt of said second electronic signal and said sound control mechanism causes said speaker to produce an audible sound upon receipt of said second electronic signal.
(Figure 1)