H - Electricity – 04 – B
Patent
H - Electricity
04
B
179/1, 325/2
H04B 5/02 (2006.01) B61L 3/22 (2006.01)
Patent
CA 1181814
Abstract of the Disclosure A stationary transmitting and receiving station includes a transmitting section which is connected to an elongated induction loop and operable to transmit signal messages including identifying code signals to said induction loop, and a receiving section adapted to receive acknowledgments. A plurality of mobile units are movable along said induction loop and comprises each a receiver inductively coupled to said induction loop and adapted to receive from said induction loop signal messages which include a code signal identifying said mobile unit, and a transmitter operable to transmit an acknowledgement in response to the reception of such signal message by said receiver. A plurality of acknowledgment loops extend along respective length portions of said induction loop and are inductively coupled to said transmitters of all said movable units. Said receiving section comprises a plurality of receiving units, each of which is connected to one of said acknowledgment loops and adapted to receive said acknowledgment therefrom.
389110
Fetherstonhaugh & Co.
Voest - Alpine Aktiengesellschaft
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