Patent US3961851A successfully refreshed from Google Patents.
US3961851A
Expired / Lapsed
US
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Passive stereovision range finder
Assignee: United States Department of the Army
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Filing: 1974-10-03
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Granted: 1976-06-08
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Expires: 1994-10-03
Abstract
Abstract A passive mobile rangefinder and stereo viewer having at least two image verting television cameras each mounted on spaced apart, remotely controlled mobile supports with synchronous drives for azimuth and elevation control. Ranging components associated with each television camera, with data links to remote locations, provide continuous baseline variation data. A baseline selector and mixer data analyzer direct the video signals from the selected pair of cameras to the remote viewing location. A rangemarker in the observer's field of view or electronic correlation techniques provide the range data.
Inventors
- 👤 Reinhold Gerharz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:23
CPC Classifications
G; G01; G01C; G01C3/00; G01C3/02; G01C3/06; G01C3/08; G01C3/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A passive stereovision rangefinder system comprising: image converting scanning means including at least three image converting television cameras positioned at various locations constituting the vertices of a triangle whereby the baseline for scanning and ranging in any particular area is maximized by remotely selecting the two cameras having the greater baseline separation; at least three mobile base means with one of said cameras mounted on each base; synchronous drive means associated with each of said cameras for remotely controlling their aiming while maintaining their optical axes in parallel relationship; ranging means associated with each mobile base for determining the distance between said cameras; a control site for controlling said synchronous drive means positioned remotely from said cameras, wherein said control site further includes selector means for selecting the two cameras having the greatest baseline when the cameras are pointed toward an area of interest, means for receiving and displaying outputs from said cameras and means for providing a range measurement from said outputs.
Claim 2
Dependent Claim
163 words
A passive stereovision rangefinder system comprising: image converting scanning means including at least three image converting television cameras positioned at various locations constituting the vertices of a triangle whereby the baseline for scanning and ranging in any particular area is maximized by remotely selecting the two cameras having the greater baseline separation; at least three mobile base means with one of said cameras mounted on each base; synchronous drive means associated with each of said cameras for remotely controlling their aiming while maintaining their optical axes in parallel relationship; ranging means associated with each mobile base for determining the distance between said cameras; a control site for controlling said synchronous drive means positioned remotely from said cameras, wherein said control site further includes selector means for selecting the two cameras having the greatest baseline when the cameras are pointed toward an area of interest, means for receiving and displaying outputs from said cameras and means for providing a range measurement from said outputs.
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) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |