System for the spatial allocation of at least one transponder to the cells of a detection area, base station, and transponder
First Claim
1. A spatial allocation system comprising:
- (a) a detection area comprising a plurality of cells, the cells differing from one another by changeable or permanently different properties of an electromagnetic field;
(b) at least one transponder for receiving individually, selectively or as resultants the properties of the electromagnetic fields of the cells at the position of said transponder and for evaluating the properties and spatially allocating said transponder to the cells, said transponder comprising a memory for storing the results of the allocation and means for statistically evaluating the frequency of each allocation result, wherein upon each allocation the transponder initiates a switching process immediately, after a delay, or after statistical evaluation of the frequency, and wherein the frequency for return signals from the at least one transponder to a base station lie in the HF range;
(c) a station for activating the switching process in the transponder, for selecting the nature of an action initiated by the switching process, or for the input or modification of data in the memory of the transponder;
(d) whereby the spatial allocation is effected automatically in accordance with a parameter selected from the group consisting of (i) the characteristics of the individual electromagnetic fields received, (ii) the ratio of the proportions of the electromagnetic fields received selectively or as resultants, and (iii) the proportion of the electromagnetic fields received selectively or as resultants having the predominant field strength.
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Accused Products
Abstract
A system is described for the spatial allocation of at least one transponder to cells of a detection area. The cells of the detection area differ by changeable or permanently different properties of an electromagnetic field. By means of the transponder, the properties of the electromagnetic fields of the cells which are capable of reception individually, selectively, or resultantly, are evaluated. Allocation to the cells is effected automatically according to the properties of the individual electromagnetic fields received, or according to the ratio of the proportions of the electromagnetic fields received selectively or resultantly, or according to the proportion predominating in the field strength of the electromagnetic fields received selectively or resultantly.
13 Citations
23 Claims
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1. A spatial allocation system comprising:
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(a) a detection area comprising a plurality of cells, the cells differing from one another by changeable or permanently different properties of an electromagnetic field;
(b) at least one transponder for receiving individually, selectively or as resultants the properties of the electromagnetic fields of the cells at the position of said transponder and for evaluating the properties and spatially allocating said transponder to the cells, said transponder comprising a memory for storing the results of the allocation and means for statistically evaluating the frequency of each allocation result, wherein upon each allocation the transponder initiates a switching process immediately, after a delay, or after statistical evaluation of the frequency, and wherein the frequency for return signals from the at least one transponder to a base station lie in the HF range;
(c) a station for activating the switching process in the transponder, for selecting the nature of an action initiated by the switching process, or for the input or modification of data in the memory of the transponder;
(d) whereby the spatial allocation is effected automatically in accordance with a parameter selected from the group consisting of (i) the characteristics of the individual electromagnetic fields received, (ii) the ratio of the proportions of the electromagnetic fields received selectively or as resultants, and (iii) the proportion of the electromagnetic fields received selectively or as resultants having the predominant field strength. - 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)
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Specification