Patent EP0056726A1 successfully refreshed from Google Patents.
EP0056726A1
Expired / Lapsed
EP
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Remote identification of animals
Assignee: Australian Meat and Live Stock Research and Development Corp
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Filing: 1982-01-19
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Granted: —
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Expires: 2002-01-19
Abstract
Abstract An electronic system for the remote identification of objects such as livestock comprising a transponder (A-G) having a predetermined code stored therein positioned on the object to be identified, and an interrogator for remotely interrogating said transponder; the transponder has comparator means (18) for comparing the decoded VHF signal from the interrogator with a stored code wherein a valid comparison initiates the transmission of a return signal (f3) which actuates an automatic direction finder (ADF) in the interrogator.
Inventors
- 👤 Robert Gilbert Bosshard
- 👤 Alexander Ian Mc Intosh
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 15:03
CPC Classifications
A; A01; A01K; A01K11/00; A01K11/005; A01K11/006; G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/767; G01S13/78; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/0723; G06K7/00; G06K7/0008; G07; G07C; G07C9/00; G07C9/20; G07C9/28
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
116 words
A system for the remote electronic identification of objects, said system comprising at least one transponder adapted to be positioned on a respective object to be identified and/or located, and capable of having a predetermined code stored therein, and an interrogator for remotely interrogating said transponder(s), said transponder comprising; first receiving means for receiving a code VHF signal, decoding means connected to said first receiving means for decoding said VHF signal, comparator means for comparing said decoded signal with said stored code, and frequency generating means connected to said comparator means, said frequency generating means being enabled to transmit a return signal at a second frequency in response to a positive comparison by said comparator means.
Claim 2
Independent Claim
116 words
A system for the remote electronic identification of objects, said system comprising at least one transponder adapted to be positioned on a respective object to be identified and/or located, and capable of having a predetermined code stored therein, and an interrogator for remotely interrogating said transponder(s), said transponder comprising; first receiving means for receiving a code VHF signal, decoding means connected to said first receiving means for decoding said VHF signal, comparator means for comparing said decoded signal with said stored code, and frequency generating means connected to said comparator means, said frequency generating means being enabled to transmit a return signal at a second frequency in response to a positive comparison by said comparator means.
Claim 3
Dependent Claim
28 words
A system as claimed in claim 1 wherein said interrogator comprises transmitting means for transmitting the coded VHF signal and second receiving means for receiving said return signal.
Claim 4
Dependent Claim
40 words
A system as claimed in claim 2 wherein said interrogator further comprises automatic direction finding means connected to said second receiving means and responsive to said return signal for indicating the direction of said transponder with respect to said interrogator.
Claim 5
Dependent Claim
65 words
A system as claimed in claim 2 or 3, wherein said transmitting means comprises frequency generating means for generating a signal of VHF frequency, encoding means for providing a code output, a modulator connected to said frequency generating means and said encoding means for modulating said VHF signal in accordance with said code output, and a transmitting aerial connected to the output of said modulator.
Claim 6
Dependent Claim
44 words
A system as claimed in claim 4, further comprising programmable control means connected to said encoder and having an input for receiving manually input commands, said control means being adapted to determine the code output of said encoding means in accordance with said commands.
Claim 7
Dependent Claim
15 words
A system as claimed in claim 5, wherein said programmable control means comprises a micro-processor.
Claim 8
Independent Claim
77 words
A system as claimed in any preceding claim, wherein said first receiving means of said transponder is adapted to receive a signal of a second frequency, said transponder further comprising a power supply and switching means connected between said power supply and said decoding means, said switching means being connected to said first receiving means and operable in response to reception of said signal of a second frequency to connect said power supply to said decoding means.
Claim 9
Independent Claim
26 words
A system as claimed in any preceding claim wherein said objects are livestock animals, each said transponder being implantable under the skin of a respective animal.
Claim 10
Independent Claim
16 words
A system as claimed in any preceding claim, wherein said VHF signal is approximately 150 MHz.
Claim 11
Independent Claim
27 words
A system for the remote electronic identification of objects, said system being substantially as described herein with reference to Figs. 1 to 3 of the accompanying drawings.
Claim 12
Independent Claim
27 words
A system for the remote electronic identification of objects, said system being substantially as described herein with reference to Figs. 1 to 3 of the accompanying drawings.
Claim 13
Dependent Claim
120 words
A transponder for use in a system for remote electronic identification of objects, said system comprising at least one transponder adapted to be positioned on a respective object to be identified and/or located, and capable of having a predetermined code stored therein, and an interrogator for remotely interrogating said transponder(s), said transponder comprising; first receiving means for receiving a code VHF signal, decoding means connected to said first receiving means for decoding said VHF signal, comparator means for comparing said decoded signal with said stored code, and frequency generating means connected to said comparator means, said frequency generating means being enabled to transmit a return signal at a second frequency in response to a positive comparison by said comparator means.
Claim 14
Dependent Claim
120 words
A transponder for use in a system for remote electronic identification of objects, said system comprising at least one transponder adapted to be positioned on a respective object to be identified and/or located, and capable of having a predetermined code stored therein, and an interrogator for remotely interrogating said transponder(s), said transponder comprising; first receiving means for receiving a code VHF signal, decoding means connected to said first receiving means for decoding said VHF signal, comparator means for comparing said decoded signal with said stored code, and frequency generating means connected to said comparator means, said frequency generating means being enabled to transmit a return signal at a second frequency in response to a positive comparison by said comparator means.
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