US3603919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly-panchromatic target identification
Assignee: University of Kansas
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Filing: 1969-02-27
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Granted: 1971-09-07
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Expires: 1989-02-27
Abstract
Abstract In a radar or sonar system, a continuous spectrum of electromagnetic or compressional wave energy is transmitted and defines a wide band of frequencies. The receiver has one or more channels, the multiple channel arrangement defining subbands of the transmitted frequency band which are separately detected so that an identification signal is derived from each channel respectively. Each identification signal represents the response of the target to that particular frequency subband, such signals being combined as desired to provide a suitable readout. For three information signal output logic, a color cathode-ray tube provides an effective display by controlling each color input thereof in accordance with a corresponding one of the identification signals.
Inventors
- 👤 Richard K Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/52; G01S7/56; G01S7/62; G01S7/6263; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/34; G01S13/346; G01S7/02; G01S7/04; G01S7/06; G01S7/062; G01S7/41; G01S7/411
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
82 words
A method of identifying a target subjected to wave energy comprising the steps of: transmitting wave energy within a spectrum including a plurality of different, individually wide and continuous bands of frequencies; receiving said transmitted wave energy throughout each of said wide bands of frequencies after incidence thereof with said target; and deriving a plurality of identification signals from said received wave energy respectively representing the response of the target to said wave energy throughout each of said wide bands of frequencies.
Claim 2
Independent Claim
82 words
A method of identifying a target subjected to wave energy comprising the steps of: transmitting wave energy within a spectrum including a plurality of different, individually wide and continuous bands of frequencies; receiving said transmitted wave energy throughout each of said wide bands of frequencies after incidence thereof with said target; and deriving a plurality of identification signals from said received wave energy respectively representing the response of the target to said wave energy throughout each of said wide bands of frequencies.
Claim 3
Dependent Claim
32 words
The method as claimed in claim 1, wherein said bands of frequencies are so related to each other that said spectrum for which said wave energy is transmitted is continuous and uninterrupted.
Claim 4
Dependent Claim
41 words
The method as claimed in claim 1, wherein said step of deriving said identification signals includes integrating the received wave energy for each said bands of frequencies to provide a separate identification signal for each of said wide bands of frequency.
Claim 5
Dependent Claim
28 words
The method as claimed in claim 1, wherein is provided the additional step of combining representations of each of said identification signals to present a composite display thereof.
Claim 6
Dependent Claim
129 words
Apparatus for subjecting a target to wave energy to identify the target, said apparatus comprising: means for transmitting wave energy within a spectrum including a plurality of different, individually wide and continuous bands of frequencies; means for receiving said transmitted wave energy throughout each of said wide bands of frequencies after incidence thereof with said target, said receiving means having a plurality of wide band channels defining wide subbands respectively corresponding to said bands of frequencies; and detector means coupled with said receiver and separately responsive to the received wave energy in each of the individual channels of said receiving means for deriving a corresponding plurality of separate identification signals respectively representing the response of the target to said wave energy throughout each of said wide subbands of freQuencies.
Claim 7
Dependent Claim
129 words
Apparatus for subjecting a target to wave energy to identify the target, said apparatus comprising: means for transmitting wave energy within a spectrum including a plurality of different, individually wide and continuous bands of frequencies; means for receiving said transmitted wave energy throughout each of said wide bands of frequencies after incidence thereof with said target, said receiving means having a plurality of wide band channels defining wide subbands respectively corresponding to said bands of frequencies; and detector means coupled with said receiver and separately responsive to the received wave energy in each of the individual channels of said receiving means for deriving a corresponding plurality of separate identification signals respectively representing the response of the target to said wave energy throughout each of said wide subbands of freQuencies.
Claim 8
Dependent Claim
36 words
Apparatus as claimed in claim 5, said channels being at least three in number; and a color cathode-ray tube having three color inputs coupled with said detector means and responsive to each of said identification signals.
Claim 9
Dependent Claim
41 words
7. Apparatus as claimed in claim 5, said transmitting means including a high frequency noise generator having a frequency content covering said spectrum, and gating means coupled with the output of said generator for delivering time spaced pulses of said content.
Claim 10
Dependent Claim
75 words
Apparatus as claimed in claim 5, said transmitting means including a swept high frequency generator having a range of sweep covering said spectrum, said receiving means including a swept local oscillator offset from said range of sweep by a predetermined difference frequency, a mixer for receiving said received wave energy and operably coupled with the output of said local oscillator, an means for delivering difference frequency output signals from said mixer to said detector means.
Claim 11
Dependent Claim
116 words
Apparatus as claimed in claim 5, said transmitting means including a swept high frequency generator having a range of sweep covering said spectrum said receiving means including a high frequency noise generator, a mixer for receiving said received wave energy and operably coupled with the output of said noise generator, and means for delivering output signals of a predetermined difference frequency from said mixer to said detector means. 10 Apparatus as claimed in claim 5, said transmitting means including a swept high frequency generator having a relatively slow rate of sweep covering said spectrum, and gating means coupled with the output of said generator for delivering time spaced pulses therefrom during each sweep having overlapping spectra.
References Cited (Backward Citations)
US2428351A
Cited
US3121856A
Cited
US2822536A
Cited
US3175214A
Cited
US3156110A
Cited
US3307142A
Cited
US3311914A
Cited
US3466652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |