Patent US2191291A successfully refreshed from Google Patents.
US4151523A
Expired / Lapsed
US
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Clutter mapper logic system
Assignee: Raytheon Co
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Filing: 1976-08-25
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Granted: 1979-04-24
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Expires: 1996-08-25
Abstract
Abstract A receiving antenna connected to a surveillance sensor feeding a target detector. The target detector provides multiple inputs of target reports, azimuth, range and scan count data into a clutter mapper circuit which in turn feeds a track-while-scan circuit feeding a CRT display. The clutter mapper circuit provides improved clutter detection in the presence of scintillating clutter conditions.
Inventors
- 👤 Vernon H. Platt
- 👤 Richard D. Wilmot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:46
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/292; G01S7/2923; G01S7/2927; G01S7/04; G01S7/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
61 words
In an energy sensing system, the combination comprising: a time-between-detection-logic circuit; a digital memory circuit electrically connected to the output of the logic circuit; an amplitude comparator circuit the input of which is electrically connected to the output of the digital memory circuit; and a track-while-scan circuit the input of which is electrically connected to the output of the amplitude comparator.
Claim 2
Dependent Claim
61 words
In an energy sensing system, the combination comprising: a time-between-detection-logic circuit; a digital memory circuit electrically connected to the output of the logic circuit; an amplitude comparator circuit the input of which is electrically connected to the output of the digital memory circuit; and a track-while-scan circuit the input of which is electrically connected to the output of the amplitude comparator.
Claim 3
Dependent Claim
26 words
The invention as stated in claim 1, including an address control circuit the output of which is electrically connected to the input of the memory circuit.
Claim 4
Dependent Claim
18 words
The invention as stated in claim 2, including a target detector electrically connected to the address control circuit.
Claim 5
Dependent Claim
17 words
The invention as stated in claim 3, including a surveillance sensor electrically connected to the target detector.
Claim 6
Dependent Claim
25 words
The invention as stated in claim 1, wherein the output of the digital memory circuit is electrically connected to the input of the logic circuit.
Claim 7
Dependent Claim
25 words
The invention as stated in claim 1, including a target detector the output of which is electrically connected to the input of the amplitude comparator.
Claim 8
Dependent Claim
17 words
The invention as stated in claim 6, including a surveillance sensor electrically connected to the target detector.
Claim 9
Dependent Claim
17 words
The invention as stated in claim 1, including a target detector electrically connected to the logic circuit.
Claim 10
Dependent Claim
17 words
The invention as stated in claim 8, including a surveillance sensor electrically connected to the target detector.
Claim 11
Dependent Claim
23 words
The invention as stated in claim 1, including a cathode ray display electrically connected to the track-while-scan circuit and the digital memory circuit.
Claim 12
Dependent Claim
25 words
The invention as stated in claim 1 including means, electrically connected to the time-between-detection-logic circuit, for averaging and smoothing clutter amplitudes present in received signals.
Claim 13
Dependent Claim
65 words
In an energy sensing system for sensing target velocity, the combination comprising: a target characterizing logic circuit, said logic circuit being characterized in terms of said target velocity; a digital memory circuit, devoid of shift registers, electrically connected to the output of the logic circuit; and an amplitude comparator circuit the input of which is electrically connected to the output of the digital memory circuit.
Claim 14
Dependent Claim
65 words
In an energy sensing system for sensing target velocity, the combination comprising: a target characterizing logic circuit, said logic circuit being characterized in terms of said target velocity; a digital memory circuit, devoid of shift registers, electrically connected to the output of the logic circuit; and an amplitude comparator circuit the input of which is electrically connected to the output of the digital memory circuit.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |