Process and configuration for detecting a transponder with reference to a particular cell of two adjacent overlapped cells
First Claim
1. A process for detecting a transponder in a detection region structured into at least two adjacent overlapped cells in which the transponder is detectable with reference to a particular one of the cells, said detecting process comprising the steps of:
- (a) providing in each of the at least two adjacent overlapped cells a field with a detectable field characteristic;
(b) acquiring the field characteristic of a first of the cells using a sensing unit of the transponder;
(c) cyclically transmitting a response signal from a transmitting unit of the transponder containing the acquired field characteristics;
(d) receiving the response signal by a receiver which contains response signal information regarding the acquired field characteristic;
(e) evaluating the response signal with respect to the information of the acquired field characteristic contained in the receiver;
(f) comparing the acquired field characteristic with field characteristics provided in the cells;
(g) determining the possible position(s) of the transponder on the basis of the results of the performed comparison; and
(h) verifying a position determination wherein after the detection of a transponder in the first cell the field characteristic of the adjacent cell is adjusted such that it differs from that of the first cell.
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Accused Products
Abstract
A process and configuration used therein for detecting a transponder in a detection region, structured into two adjacent overlapped cells, provide for detecting the transponder with reference to a particular one cell of the two cells. The detecting process includes the steps of: providing in each of the cells a field with a detectable field characteristic; acquiring the field characteristic of a first of the cells using a sensing unit of the transponder; cyclically transmitting a response signal from a transmitting unit of the transponder containing the acquired field characteristics; receiving the response signal by a receiver which contains response signal information regarding the acquired field characteristic, namely that of the field of the first cell, that of the field of the adjacent cell or an unknown field characteristic; evaluating the response signal with respect to the information of the acquired field characteristic contained in the receiver; comparing the acquired field characteristic with the field characteristics provided in the cells; determining the possible position(s) of the transponder on the basis of the results of the performed comparison; and verifying a position determination, wherein, after detection of a transponder in the first cell, the field characteristic of the adjacent cell is adjusted such that it differs from that of the first cell.
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Citations
20 Claims
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1. A process for detecting a transponder in a detection region structured into at least two adjacent overlapped cells in which the transponder is detectable with reference to a particular one of the cells, said detecting process comprising the steps of:
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(a) providing in each of the at least two adjacent overlapped cells a field with a detectable field characteristic;
(b) acquiring the field characteristic of a first of the cells using a sensing unit of the transponder;
(c) cyclically transmitting a response signal from a transmitting unit of the transponder containing the acquired field characteristics;
(d) receiving the response signal by a receiver which contains response signal information regarding the acquired field characteristic;
(e) evaluating the response signal with respect to the information of the acquired field characteristic contained in the receiver;
(f) comparing the acquired field characteristic with field characteristics provided in the cells;
(g) determining the possible position(s) of the transponder on the basis of the results of the performed comparison; and
(h) verifying a position determination wherein after the detection of a transponder in the first cell the field characteristic of the adjacent cell is adjusted such that it differs from that of the first cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A configuration for detecting a transponder in a detection region structured into at least two adjacent overlapped cells in which the transponder is detectable with reference to a particular one of the cells, said detecting configuration comprising:
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(a) a plurality of stationary field-generating devices each associated with a respective one of the at least two adjacent overlapped cells and for generating a field with detectable field characteristics changing at predetermined time intervals, said devices being operable with identical field characteristics as well as with differing field characteristics;
(b) a transponder having a sensing unit operable for acquiring detectable field characteristics or changes thereof and a transmitting unit operable for transmitting response signals containing the acquired field characteristics in response to the operation of said sensing unit;
(c) a receiver for receiving the response signals transmitted by said transmitting unit; and
(d) a control and memory device connected to said field-generating devices for driving said field-generating devices and connected to said receiver for evaluating the response signals received by said receiver. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification