Count-down addressing system
First Claim
1. Apparatus for addressing one of a plurality of n remote stations distributed along a system capable of transmitting electromagnetic wave energy characterized in that said apparatus includes:
- an addressing signal generator (22) coupled to said system (20, 21, i) for generating an addressing signal comprising a series of m signal bursts, where m is an integer between one and n, and designates the station to be addressed;
means (33, 34, 41,
43) at each of said stations for deleting one burst from said series and for retransmitting a series of bursts having one less than the number received;
and further means (34, 38, 43, 44, 50,
51) for recognizing that only a single addressing burst is received.
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Accused Products
Abstract
A system is described for randomly addressing any one of a plurality of remotely located stations connected by means of an electromagnetic wavepath. At the addressing point an addressing signal, comprising a series of m signal bursts, is generated and coupled onto the wavepath (11), where m is an integer and corresponds to the number of stations the addressed station is away from the addressing point. Each remote station includes means (33, 34, 41, 43) for deleting one signal burst and retransmitting the remaining signal bursts. Each station also includes means (34, 38, 42, 43, 44, 50, 51) for recognizing when only a single signal burst is received and for responding in a prescribed manner. By means of such a "count-down" technique, the mth station from the addressing station is accessed. it is an advantage of such a system that the addressing circuit is the same at all the remote stations.
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Citations
8 Claims
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1. Apparatus for addressing one of a plurality of n remote stations distributed along a system capable of transmitting electromagnetic wave energy characterized in that said apparatus includes:
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an addressing signal generator (22) coupled to said system (20, 21, i) for generating an addressing signal comprising a series of m signal bursts, where m is an integer between one and n, and designates the station to be addressed; means (33, 34, 41,
43) at each of said stations for deleting one burst from said series and for retransmitting a series of bursts having one less than the number received;and further means (34, 38, 43, 44, 50,
51) for recognizing that only a single addressing burst is received. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification