Patent US4517563A successfully refreshed from Google Patents.
US4517563A
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US
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Apparatus and method for identification of objects
Assignee: DIUK TSIYUD HALIVA DN
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Filing: 1982-07-30
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Granted: 1985-05-14
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Expires: 2002-07-30
Abstract
Abstract An object identification system comprising an active transponder including a high frequency generator, and a passive transponder including a resonance circuit receiving energy from the active transponder, and a coding circuit powered by the energy received by the resonance circuit. The passive transponder is mounted on an object to be identified.
Inventors
- 👤 Emanuel Diamant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; A; A01; A01K; A01K11/00; A01K11/006; G06K19/07; G06K19/0723; G06K7/00; G06K7/0008; G07; G07C; G07C9/00; G07C9/20; G07C9/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
78 words
An object identification system comprising: an active transponder including a signal generator comprising a transmitting coil and an inductor and means for detecting resonance circuit load modulation; a passive transponder mounted on an object and including a resonance circuit receiving energy transmitted by the active transponder; a coding circuit, associated with the passive transponder, powered by an electrical signal received from said resonance circuit for selectably modulating said electrical signal, thereby modulating the load on said resonance circuit.
Claim 2
Dependent Claim
78 words
An object identification system comprising: an active transponder including a signal generator comprising a transmitting coil and an inductor and means for detecting resonance circuit load modulation; a passive transponder mounted on an object and including a resonance circuit receiving energy transmitted by the active transponder; a coding circuit, associated with the passive transponder, powered by an electrical signal received from said resonance circuit for selectably modulating said electrical signal, thereby modulating the load on said resonance circuit.
Claim 3
Dependent Claim
18 words
An object identiciation system according to claim 1 and wherein said signal generator comprises a high frequency generator.
Claim 4
Dependent Claim
25 words
An identification system according to claim 1 and wherein said coding circuit is operative to modulate the electrical signal in accordance with a predetermined code.
Claim 5
Dependent Claim
28 words
An identification system according to claim 1 and wherein said selectably modulated electrical signal in said passive transponder is at substantially the same frequency as the transmitted signal.
Claim 6
Dependent Claim
47 words
An identification system according to claim 1 and comprising a plurality of passive transponders, each associated with an object to be separately identified, each passive transponder comprising an identical resonance circuit having a different code, the selectably modulated electrical signal of each being at the same frequency.
Claim 7
Dependent Claim
17 words
An identification system according to claim 1 and wherein said coding circuit comprises a non-FM modulating circuit.
Claim 8
Dependent Claim
21 words
An identification system according to claim 1 and wherein said coding circuit comprises a digital switch operated by a shift register.
Claim 9
Dependent Claim
14 words
An identification system according to claim 1 and wherein said object is an animal.
Claim 10
Dependent Claim
58 words
An identification system according to claim 1 and wherein said signal generator comprises a high frequency generator; and comprising a plurality of passive transponders, each associated with an object to be separately identified, each transponder comprising an identical resonance circuit and comprising a coding circuit operative to modulate the electrical signal in accordance with a different predetermined code.
Claim 11
Dependent Claim
28 words
An identification system according to claim 9 and wherein said selectably modulated electrical signals in said pasive transponders are at substantially the same frequency as the transmitted signal.
Claim 12
Dependent Claim
22 words
An identification system according to claim 9 and wherein each said coding circuit comprises a digital switch operated by a shift register.
Claim 13
Dependent Claim
16 words
An identification system according to claim 9 and wherein said coding circuits comprise non-FM modulating circuits.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |