Patent US3353178A successfully refreshed from Google Patents.
US3353178A
Expired / Lapsed
US
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Identification equipment
Assignee: US Philips Corp
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Filing: 1966-02-18
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Granted: 1967-11-14
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Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 Wasterlid Nils Arne Erland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:24
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/75; G01S13/751; G01S13/753; B; B61; B61L; B61L25/00; B61L25/02; B61L25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A SYSTEM FOR THE INDENTIFICATION OF AN OBJECT ADAPTED TO MOVE PAST A DETECTING STATION, OF THE TYPE IN WHICH SAID DETECTING STATION IS PROVIDED WITH AN INQUIRY DEVICE FOR TRANSMITTING AN INQUIRY SIGNAL AND SAID OBJECT IS PROVIDED WITH A REPLY UNIT FOR RESPONDING TO SAID INQUIRY SIGNAL IN A MANNER CHARACTERISTIC OF THE OBJECT, WHEREIN SAID INQUIRY DEVICE COMPRISES A SOURCE OF HIGH FREQUENCY ELECTROMAGNETIC ENERGY, MEANS FOR CONTINUOUSLY SWEEPING THE FREQUENCY OF SAID ENERGY ACROSS A PREDETERMINED FREQUENCY BAND, AND FIRST DIRECTIONAL ANTENNA MEANS FOR TRANSMITTING SAID ENERGY TOWARD SAID REPLY UNIT, AND SAID REPLY UNIT COMPRISES A WAVEGUIDE SYSTEM HAVING A PLURALITY OF CAVITY RESONATORS HAVING DIFFERENT RESONANT FREQUENCIES WITHIN SAID PREDETERMINED BAND FOR FORMING A CODE CHARACTERISTIC OF SAID OBJECT, SECOND DIRECTIONAL ANTENNA MEANS FOR RECEIVING SAID TRANSMITTED ENERGY AND APPLYING THE RECEIVED ENERGY TO SAID CAVITY RESONATORS, WHEREBY SAID RECEIVED ENERGY IS MODIFIED BY SAID CAVITY RESONATORS IN RESPONSE TO THEIR NATURAL FREQUENCIES, AND A THIRD DIRECTIONAL ANTENNA MEANS FOR TRANSMITTING SAID MODIFIED ENERGY TOWARD SAID DETECTING STATION, SAID DETECTING STATION FURTHER COMPRISING FOURTH DIRECTIONAL ANTENNA MEANS FOR RECEIVING SAID MODIFIED ENERGY, AND MEANS FOR DETERMING BY SAID CAVITY RESONATORS.
Claim 2
Independent Claim
196 words
A SYSTEM FOR THE INDENTIFICATION OF AN OBJECT ADAPTED TO MOVE PAST A DETECTING STATION, OF THE TYPE IN WHICH SAID DETECTING STATION IS PROVIDED WITH AN INQUIRY DEVICE FOR TRANSMITTING AN INQUIRY SIGNAL AND SAID OBJECT IS PROVIDED WITH A REPLY UNIT FOR RESPONDING TO SAID INQUIRY SIGNAL IN A MANNER CHARACTERISTIC OF THE OBJECT, WHEREIN SAID INQUIRY DEVICE COMPRISES A SOURCE OF HIGH FREQUENCY ELECTROMAGNETIC ENERGY, MEANS FOR CONTINUOUSLY SWEEPING THE FREQUENCY OF SAID ENERGY ACROSS A PREDETERMINED FREQUENCY BAND, AND FIRST DIRECTIONAL ANTENNA MEANS FOR TRANSMITTING SAID ENERGY TOWARD SAID REPLY UNIT, AND SAID REPLY UNIT COMPRISES A WAVEGUIDE SYSTEM HAVING A PLURALITY OF CAVITY RESONATORS HAVING DIFFERENT RESONANT FREQUENCIES WITHIN SAID PREDETERMINED BAND FOR FORMING A CODE CHARACTERISTIC OF SAID OBJECT, SECOND DIRECTIONAL ANTENNA MEANS FOR RECEIVING SAID TRANSMITTED ENERGY AND APPLYING THE RECEIVED ENERGY TO SAID CAVITY RESONATORS, WHEREBY SAID RECEIVED ENERGY IS MODIFIED BY SAID CAVITY RESONATORS IN RESPONSE TO THEIR NATURAL FREQUENCIES, AND A THIRD DIRECTIONAL ANTENNA MEANS FOR TRANSMITTING SAID MODIFIED ENERGY TOWARD SAID DETECTING STATION, SAID DETECTING STATION FURTHER COMPRISING FOURTH DIRECTIONAL ANTENNA MEANS FOR RECEIVING SAID MODIFIED ENERGY, AND MEANS FOR DETERMING BY SAID CAVITY RESONATORS.
References Cited (Backward Citations)
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US3270338A
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US3182314A
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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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |