US3089138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse-count threshold control circuit
Assignee: Cutler Hammer Inc
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Filing: 1961-10-13
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Granted: 1963-05-07
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Expires: 1981-10-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick H Battle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:24
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/687; H03K17/689; H03K17/691; G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/44; G01S1/54; G01S1/58; G01S1/64; H03F; H03F3/00; H03F3/189; H03F3/19; H03F3/193; H03G; H03G1/00; H03G1/0005; H03G1/0017; H03G1/0029; H03H; H03H11/00; H03H11/02; H03H11/24; H03H11/245; H03H9/00; H03H9/30; H03H9/36; H10; H10D; H10D84/00; H10D84/80; H10D84/82; H10D84/83; H10D99/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
IN A RADIO NAVIGATION SYSTEM IN WHICH A SCANNING BEAM IS TRANSMITTED FROM A SITE AND PULSE-CODED IN ACCORDANCE WITH THE BEAM ANGLE FROM A PREDETERMINED REFERENCE ANGLE, A RECEIVER FOR RECEIVING AND DECODING THE SCANNING BEAM WHICH COMPRISES (A) RECEIVING MEANS FOR PRODUCING PULSES CORRESPONDING TO THE BEAM ANGLE-CODING PULSES, (B) A VARIABLE THRESHOLD GATE FOR PASSING PULSES SUPPLIED THERETO FORM THE RECEIVING MEANS WHICH EXCEED THE THRESHOLD LEVEL THEREOF. (C) MEANS FOR VARYING THE THRESHOLD OF SAID GATE TO MAINTAIN SUBSTANTIALLY CONSTANT THE NUMBER OF PULSES PASSING THERETHROUGH, (D) AND MEANS FOR UTILIZING PULSES CORRESPONDING TO THE PULSES PASSING THROUGH SAID GATE TO DECODE THE ANGLE REPRESENTED THEREBY.
Claim 2
Dependent Claim
110 words
IN A RADIO NAVIGATION SYSTEM IN WHICH A SCANNING BEAM IS TRANSMITTED FROM A SITE AND PULSE-CODED IN ACCORDANCE WITH THE BEAM ANGLE FROM A PREDETERMINED REFERENCE ANGLE, A RECEIVER FOR RECEIVING AND DECODING THE SCANNING BEAM WHICH COMPRISES (A) RECEIVING MEANS FOR PRODUCING PULSES CORRESPONDING TO THE BEAM ANGLE-CODING PULSES, (B) A VARIABLE THRESHOLD GATE FOR PASSING PULSES SUPPLIED THERETO FORM THE RECEIVING MEANS WHICH EXCEED THE THRESHOLD LEVEL THEREOF. (C) MEANS FOR VARYING THE THRESHOLD OF SAID GATE TO MAINTAIN SUBSTANTIALLY CONSTANT THE NUMBER OF PULSES PASSING THERETHROUGH, (D) AND MEANS FOR UTILIZING PULSES CORRESPONDING TO THE PULSES PASSING THROUGH SAID GATE TO DECODE THE ANGLE REPRESENTED THEREBY.
Claim 3
Dependent Claim
113 words
IN A RADIO NAVIGATION SYSTEM IN WHICH A SCANNING BEAM IS TRANSMITTED FROM A SITE AND PULSE-CODED IN ACCORDANCE WITH THE BEAM ANGLE FROM A PREDETERMINED REFERENCE ANGLE, A RECEIVER FOR RECEIVING AND DECODING THE SCANNING BEAM WHICH COMPRISES, (A) RECEIVING MEANS FOR PRODUCING PULSE CORRESPONDING TO THE BEAM ANGLE CODING PULSES, (B) A VARIABLE THERESHOLD GATE FOR PASSING PULSES SUPPLIED THERETO FROM THE RECEIVING MEANS WHICH EXCEED THE THRESHOLD LEVEL THEREOF, (C) MEANS FOR VARYING THE THRESHOLD OF SAID GATE TO MAINTAIN SUBSTANTIALLY CONSTANT THE NUMBER OF PULSES PASSING THERETHROUGH. (D) AND MEANS FOR UTILIZING PULSES CORRESPONDING TO THE PULSES PASSING THROUGH SAID GATE TO CONTROL THE GAIN OF THE RECEIVING MEANS.
Claim 4
Dependent Claim
113 words
IN A RADIO NAVIGATION SYSTEM IN WHICH A SCANNING BEAM IS TRANSMITTED FROM A SITE AND PULSE-CODED IN ACCORDANCE WITH THE BEAM ANGLE FROM A PREDETERMINED REFERENCE ANGLE, A RECEIVER FOR RECEIVING AND DECODING THE SCANNING BEAM WHICH COMPRISES, (A) RECEIVING MEANS FOR PRODUCING PULSE CORRESPONDING TO THE BEAM ANGLE CODING PULSES, (B) A VARIABLE THERESHOLD GATE FOR PASSING PULSES SUPPLIED THERETO FROM THE RECEIVING MEANS WHICH EXCEED THE THRESHOLD LEVEL THEREOF, (C) MEANS FOR VARYING THE THRESHOLD OF SAID GATE TO MAINTAIN SUBSTANTIALLY CONSTANT THE NUMBER OF PULSES PASSING THERETHROUGH. (D) AND MEANS FOR UTILIZING PULSES CORRESPONDING TO THE PULSES PASSING THROUGH SAID GATE TO CONTROL THE GAIN OF THE RECEIVING MEANS.
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |