US3378634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for scanning color encoded film with a monochrome television camera
Assignee: SRI International Inc
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Filing: 1965-10-22
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Granted: 1968-04-16
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Macovski Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:23
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A SYSTEM FOR GENERATING ELECTRICAL SIGNALS REQUIRED FOR A COLOR TELEVISION RECEIVER TO REPRODUCE IN COLOR AN IMAGE PHOTOGRAPHED ON A MONOCHROME NEGATIVE THROUGH A SPATIAL FILTER WHICH COMPRISES TWO RELATIVELY ANGULARLY DISPOSED GRIDS OF LINES EACH GRID OF LINES BEING OF A DIFFERENT SUBTRACTIVE PRIMARY COLOR, SAID SYSTEM COMPRISING COHERENT LIGHT MEANS, MEANS FOR DIRECTING LIGHT FROM SAID COHERENT LIGHT MEANS AT ONE SIDE OF SAID MONOCHROME NEGATIVE, MEANS FOR FOCUSING THE LIGHT WHICH IS PASSED THROUGH SAID NEGATIVE, MEANS FOR SEPARATING THE LIGHT PASSING THROUGH SAID NEGATIVE INTO FIRST, SECOND AND THIRD LIGHT COMPONENTS RESPECTIVELY CONTAINING INFORMATION AS TO FIRST AND SECOND PRIMARY COLOR COMPONENTS AT THE LUMINANCE OF THE IMAGE PHOTOGRAPHED ON SAID NEGATIVE, TELEVISION CAMERA MEANS, MEANS FOR DIRECTING SAID FIRST, SECOND AND THIRD LIGHT COMPONENTS AT SAID CAMERA MEANS, AND MEANS FOR DERIVING FROM THE OUTPUT OF SAID TELEVISION CAMERA MEANS ELECTRICAL SIGNALS REPRESENTATIVE OF THE LUMINANCE AND PRIMARY COLOR INFORMATION IN SAID IMAGE PHOTOGRAPHED ON SAID NEGATIVE.
Claim 2
Independent Claim
163 words
A SYSTEM FOR GENERATING ELECTRICAL SIGNALS REQUIRED FOR A COLOR TELEVISION RECEIVER TO REPRODUCE IN COLOR AN IMAGE PHOTOGRAPHED ON A MONOCHROME NEGATIVE THROUGH A SPATIAL FILTER WHICH COMPRISES TWO RELATIVELY ANGULARLY DISPOSED GRIDS OF LINES EACH GRID OF LINES BEING OF A DIFFERENT SUBTRACTIVE PRIMARY COLOR, SAID SYSTEM COMPRISING COHERENT LIGHT MEANS, MEANS FOR DIRECTING LIGHT FROM SAID COHERENT LIGHT MEANS AT ONE SIDE OF SAID MONOCHROME NEGATIVE, MEANS FOR FOCUSING THE LIGHT WHICH IS PASSED THROUGH SAID NEGATIVE, MEANS FOR SEPARATING THE LIGHT PASSING THROUGH SAID NEGATIVE INTO FIRST, SECOND AND THIRD LIGHT COMPONENTS RESPECTIVELY CONTAINING INFORMATION AS TO FIRST AND SECOND PRIMARY COLOR COMPONENTS AT THE LUMINANCE OF THE IMAGE PHOTOGRAPHED ON SAID NEGATIVE, TELEVISION CAMERA MEANS, MEANS FOR DIRECTING SAID FIRST, SECOND AND THIRD LIGHT COMPONENTS AT SAID CAMERA MEANS, AND MEANS FOR DERIVING FROM THE OUTPUT OF SAID TELEVISION CAMERA MEANS ELECTRICAL SIGNALS REPRESENTATIVE OF THE LUMINANCE AND PRIMARY COLOR INFORMATION IN SAID IMAGE PHOTOGRAPHED ON SAID NEGATIVE.
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) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |