US3742136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture generating unit of the scanning type
Assignee: Saab Bofors AB
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Filing: 1971-03-15
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Granted: 1973-06-26
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Expires: 1991-03-15
Abstract
Abstract A scanning device such as an IR camera generates horizontal and vertical scanning signals to direct a detector over a viewing field. The detector then emits information signals in accordance with the amplitude of a property, such as temperature, at points within the viewing field. The scanning and information signals are fed to a display device to give a visual indication of the temperature distribution of the viewing field. In addition a selective device through the agency of the scanning signals controllably selects a portion of the viewing field for detailed study. The selective device feeds signals to the display device to visually demarcate the selected area and also selects the information signals in that area for amplitude measurement. The measure of the amplitude is converted to a form suitable for visual display so that there is simultaneously displayed a representation of the field of view with the selected area demarcated and an indication of the temperature within the selected area.
Inventors
- 👤 T Olsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:40
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/30; H04N5/33; G; G01; G01J; G01J5/00; G01J5/02; G01J5/08; G01J5/025; G01J5/07; G01J5/48; H04N23/00; H04N23/20; G01J2005/0077
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
186 words
In combination with a scanning camera which generates scanning signals for controlling the scanning of a viewing field and generates information signals related to the amplitude of the radiation at points within the viewing field, apparatus for displaying at least a selected area of the viewing field and giving an indication of the amplitude of the radiation in the selected area of the viewing field comprising a scanning type display device which is driven to scan by said scanning signals and displays representations of said information signals, controllable selective means receiving said scanning signals and generating selection signals occurring at particular times after the start of said scanning signals related to a particular area of the viewing field, means for adding said selection signals to the information signals fed to said display device whereby said particular area is demarcated in the displayed viewing field, measuring means utilizing said selection signals and said information signals for measuring the amplitude of the radiation in said particular area, and measure display means for displaying a representation of the measure of the amplitude of the radiation in said particular area.
Claim 2
Dependent Claim
186 words
In combination with a scanning camera which generates scanning signals for controlling the scanning of a viewing field and generates information signals related to the amplitude of the radiation at points within the viewing field, apparatus for displaying at least a selected area of the viewing field and giving an indication of the amplitude of the radiation in the selected area of the viewing field comprising a scanning type display device which is driven to scan by said scanning signals and displays representations of said information signals, controllable selective means receiving said scanning signals and generating selection signals occurring at particular times after the start of said scanning signals related to a particular area of the viewing field, means for adding said selection signals to the information signals fed to said display device whereby said particular area is demarcated in the displayed viewing field, measuring means utilizing said selection signals and said information signals for measuring the amplitude of the radiation in said particular area, and measure display means for displaying a representation of the measure of the amplitude of the radiation in said particular area.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 wherein said selective means includes manually operable means for controllably selecting the particular times when the selection signals occur.
Claim 4
Dependent Claim
46 words
The apparatus of claim 1 wherein said scanning signals are trigger pulses and said manually operable means includes delay means for delaying the transmission of said trigger pulses and means connected to said delay means and responsive to said trigger pulses for generating said selection signals.
Claim 5
Dependent Claim
43 words
The apparatus of claim 1 wherein said scanning signals have ramp waveforms and said manually operable means includes level sensitive means operable when the scanning signals obtain a given amplitude and means connected to said level sensitive means for generating said selection signals.
Claim 6
Dependent Claim
22 words
The apparatus oF claim 1 wherein said selective means includes manually operable means for controllably selecting the duration of said selection signals.
Claim 7
Dependent Claim
23 words
The apparatus of claim 1 wherein said measuring means includes means for measuring the average amplitude of the radiation in said particular area.
Claim 8
Dependent Claim
23 words
The apparatus of claim 1 wherein said measuring means includes means for measuring the peak amplitude of the radiation in said particular area.
Claim 9
Dependent Claim
20 words
The apparatus of claim 1 wherein said selection signals change the intensity of the display of the entire particular area.
Claim 10
Dependent Claim
30 words
The apparatus of claim 7 further comprising means for modifying the selection signals so that the intensity of at least portions of the periphery of the particular area are changed.
Claim 11
Dependent Claim
17 words
The apparatus of claim 1 wherein the radiation is thermal radiation and the information signals represent temperature.
Claim 12
Dependent Claim
17 words
The apparatus of claim 1 wherein said measure display means includes means for digitally displaying said representation.
Claim 13
Dependent Claim
17 words
The apparatus of claim 1 wherein said measure display means includes means for analog displaying said representation.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |