US3513470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio transponder
Assignee: TDK Micronas GmbH
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Filing: 1958-07-07
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Granted: 1970-05-19
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Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 Gerald Rabow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:20
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/767
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A RADIO TRANSPONDER HAVING A RECEIVER AND A TRANSMITTER FOR THE TRANSMISSION OF PULSE SIGNALS SEPARATED FROM RECEIVED PULSE SIGNALS BY A GIVEN TIME PERIOD, COMPRISING MEANS TO DETECT A FIRST ENVELOPE OF EACH OF THE PULSE SIGNALS RECEIVED BY SAID RECEIVER, DELAY MEANS COUPLING SAID RECEIVED SIGNAL ENVELOPE TO SAID TRANSMITTER TO TRIGGER SAID TRANSMITTER, MEANS ASSOCIATED WITH SAID DETECTING MEANS FOR DERIVING FROM A PORTION OF THE TRANSMITTED PULSE OUTPUT A SECOND ENVELOPE OF EACH OF THE TRANSMITTED PULSE SIGNALS, MEANS FOR COMPARING THE TIME DIFFERENCE BETWEEN SAID FIRST AND SECOND ENVELOPES TO DERIVE A CONTROL VOLTAGE AND MEANS COUPLING SAID CONTROL VOLTAGE TO SAID DELAY MEANS TO ADJUST THE DELAY BETWEEN RECEIVED PULSE SIGNALS AND TRANSMITTED PULSE SIGNALS TO COINCIDE WITH SAID GIVEN TIME PERIOD.
Claim 2
Dependent Claim
128 words
A RADIO TRANSPONDER HAVING A RECEIVER AND A TRANSMITTER FOR THE TRANSMISSION OF PULSE SIGNALS SEPARATED FROM RECEIVED PULSE SIGNALS BY A GIVEN TIME PERIOD, COMPRISING MEANS TO DETECT A FIRST ENVELOPE OF EACH OF THE PULSE SIGNALS RECEIVED BY SAID RECEIVER, DELAY MEANS COUPLING SAID RECEIVED SIGNAL ENVELOPE TO SAID TRANSMITTER TO TRIGGER SAID TRANSMITTER, MEANS ASSOCIATED WITH SAID DETECTING MEANS FOR DERIVING FROM A PORTION OF THE TRANSMITTED PULSE OUTPUT A SECOND ENVELOPE OF EACH OF THE TRANSMITTED PULSE SIGNALS, MEANS FOR COMPARING THE TIME DIFFERENCE BETWEEN SAID FIRST AND SECOND ENVELOPES TO DERIVE A CONTROL VOLTAGE AND MEANS COUPLING SAID CONTROL VOLTAGE TO SAID DELAY MEANS TO ADJUST THE DELAY BETWEEN RECEIVED PULSE SIGNALS AND TRANSMITTED PULSE SIGNALS TO COINCIDE WITH SAID GIVEN TIME PERIOD.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |