US3803598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inverse ranging and detecting system
Assignee: Bendix Corp
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Filing: 1971-09-21
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Granted: 1974-04-09
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Expires: 1991-09-21
Abstract
Abstract A ranging and detecting system such as radar, sonar or the like is arranged to transmit the signature of a desired target. A cross correlation process takes place as the transmitted wave front sweeps past the possible targets. Back-scattered energy is received by a unit having a single optimum bandwidth and a threshold which detects only the desired target.
Inventors
- 👤 E Rosenbaum
- 👤 T Gabriele
- 👤 J Abernathy
- 👤 H Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:04
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/41; G01S7/411; G01S7/412; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
43 words
Means for identifying a target comprising: means for transmitting an inverse function of the signature of a desired target; means for receiving back-scattered energy; and, means for considering received back-scattered energy to determine whether the back-scattered energy is back-scattered from the desired target.
Claim 2
Dependent Claim
43 words
Means for identifying a target comprising: means for transmitting an inverse function of the signature of a desired target; means for receiving back-scattered energy; and, means for considering received back-scattered energy to determine whether the back-scattered energy is back-scattered from the desired target.
Claim 3
Dependent Claim
19 words
Means as recited in claim 1 wherein the inverse function is the inverse target signature of the desired target.
Claim 4
Dependent Claim
20 words
Means as recited in claim 1 wherein the inverse function is the inverse hyperplane weighting function of the desired target.
Claim 5
Dependent Claim
28 words
Means as recited in claim 1 wherein the inverse function is a function which autocorrelates with the desired target to back-scatter therefrom a readily recognizable and unique signature.
Claim 6
Dependent Claim
48 words
An inverse radar transmitter comprising: means for generating an inverse function of the radar signature of a desired target; means for generating an r.f. radar frequency means for modulating said r.f. radar frequency with said inverse function; and, means for radiating the modulated r.f. radar frequency into space.
Claim 7
Dependent Claim
48 words
An inverse radar transmitter comprising: means for generating an inverse function of the radar signature of a desired target; means for generating an r.f. radar frequency means for modulating said r.f. radar frequency with said inverse function; and, means for radiating the modulated r.f. radar frequency into space.
Claim 8
Dependent Claim
20 words
The inverse radar Transmitter of claim 5 with additionally utilization means for receiving back-scattered previously transmitted modulated r.f. radar frequencies.
Claim 9
Independent Claim
30 words
The method of identifying a target comprising: transmitting an inverse function of the target signature; receiving the back-scattered inverse function of the target; and, processing the received back-scattered inverse function.
Claim 10
Independent Claim
30 words
The method of identifying a target comprising: transmitting an inverse function of the target signature; receiving the back-scattered inverse function of the target; and, processing the received back-scattered inverse function.
Claim 11
Dependent Claim
20 words
The method of claim 7 wherein said processing step comprises comparing said received back-scattered inverse function against a known reference.
Claim 12
Dependent Claim
37 words
The method of claim 7 using radiant energy wherein the transmitting step comprises: generating said radiant energy; modulating said radiant energy to contain the inverse function of the target; and, transmitting the modulated radiant energy into space.
Claim 13
Dependent Claim
21 words
The method of claim 7 wherein the inverse function of the target comprises the inverse hyperplane weighting function of the target.
Claim 14
Dependent Claim
20 words
The method of claim 7 wherein the inverse function of the target comprises the inverse target signature of the target.
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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |