US3448208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic three-d display
Assignee: International Business Machines Corp
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Filing: 1966-07-11
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Granted: 1969-06-03
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Expires: 1986-07-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Chisnell
- 👤 Robert E Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:11
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/08; G01; G01R; G01R13/00; G01R13/20; G01R13/206
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
196 words
APPARATUS FOR SYNTHESIZING A STEREO DISPLAY FROM THREE-DIMENSIONAL DATA DEFINED BY DATA POINTS LOCATED IN CARTESIAN COORDINATES XYZ COMPRISING: AN X-Y DISPLAY PLANE; A DATA SOURCE FOR SUPPLYING THE XYZ COORDINATES OF POINTS BEING DISPLAYED; POSITIONING MEANS FOR POSITIONING THE LEFT AND RIGHT VANISHING POINTS ON SAID DISPLAY PLANE; FIRST CALCULATING MEANS RESPONSIVE TO SAID DATA SOURCE AND SAID POSITIONING MEANS FOR CALCULATING THE RIGHT AND LEFT LINE-OF-SIGHT X-Y DISTANCES FROM THE RIGHT AND LEFT VANISHING POINTS TO A DATA POINT; SECOND CALCULATING MEANS FOR CALCULATING A DEPTH PERSPECTIVE RATIO Z/Z+Z WHERE Z IS THE DISTANCE ALONG EITHER VANISHING LINE FROM AN EFFECTIVE VIEWING POINT TO SAID DISPLAY PLANE AND Z IS THE DEPTH COORDINATE OF THE DATA POINT; MULTIPLYING MEANS RESPONSIVE TO SAID FIRST AND SECOND CALCULATING MEANS FOR MULTIPLYING THE RIGHT AND LEFT LINE-OF-SIGHT X-Y DISTANCES BY THE DEPTH PERSPECTIVE RATIO TO OBTAIN RIGHT AND LEFT APPORTIONED DISTANCES; FIRST ADDING MEANS RESPONSIVE TO SAID MULTIPLYING MEANS FOR ADDING THE LEFT X-Y APPORTIONED DISTANCES TO THE X-Y COORDINATES OF THE LEFT VANISHING POINT RESPECTIVELY TO OBTAIN THE X-Y COORDINATES OF A LEFT POINT REPRESENTING THE LEFT VIEW OF THE DATA POINT ON SAID DISPLAY PLANE;
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |