Detection system forming wide gates with superior spatial selectivity
First Claim
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1. A detection system comprising at least one gate including:
- transmitter means for transmitting a first signal,detection wafer means for receiving said first signal and responsive thereto for retransmitting said first signal to provide a second signal, andreceiver means for receiving said second signal retransmitted by said detection wafer means, said detection wafer means including an oscillating circuit;
wherein each said at least one gate comprises at least two spatial detection zones directly adjoining one another with no barrier therebetween.
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Abstract
A detection system comprises at least one gate including transmitter means for forming a magnetic field and receiver means for receiving a signal transmitted by a detecting wafer provided with an oscillating circuit, wherein each gate comprises at least two spatial detection zones.
77 Citations
26 Claims
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1. A detection system comprising at least one gate including:
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transmitter means for transmitting a first signal, detection wafer means for receiving said first signal and responsive thereto for retransmitting said first signal to provide a second signal, and receiver means for receiving said second signal retransmitted by said detection wafer means, said detection wafer means including an oscillating circuit; wherein each said at least one gate comprises at least two spatial detection zones directly adjoining one another with no barrier therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification