Patent US4553159A successfully refreshed from Google Patents.
US4553159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television camera comprising a trichrome matrix filter
Assignee: THOMSON-BRANDT 173 BOULEVARD HAUSSMANN-75008-PARIS
•
Filing: 1983-02-16
•
Granted: 1985-11-12
•
Expires: 2003-02-16
Abstract
Abstract Color television camera comprising a photosensitive matrix 10, covered by a trichrome matrix filter as well as two charge coupling registers 12, 13, one of which 12 is adapted to read the spots of uneven rank of each line and the other 13 is adapted to read the spots of even rank of lines. The filter is so designed that each register only stores one single color. The arrangement is such, for example, that the green color elements are aligned on vertical bands.
Inventors
- 👤 Jean-Yves Moraillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:30
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/10; H04N25/11; H04N25/13; H04N25/134
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
A color television camera comprising: a trichrome matrix filter covering a photosensitive matrix; the matrix filter having vertical bands and horizontal lines defining adjacently positioned color elements; elements of a first color located in all alternating bands; second and third color elements intermixed in second remaining alternating bands in a repeated pattern; and a first charge coupled register for reading the first alternating bands on a line by line basis; and a second charge coupled register for reading the second alternating bands on a line by line basis; wherein all stages of first register include at any instant of time data corresponding to elements of the first color; and further wherein all stages of the second register include at sequential instants of time, data corresponding to elements of the second and third colors, respectively.
Claim 2
Dependent Claim
134 words
A color television camera comprising: a trichrome matrix filter covering a photosensitive matrix; the matrix filter having vertical bands and horizontal lines defining adjacently positioned color elements; elements of a first color located in all alternating bands; second and third color elements intermixed in second remaining alternating bands in a repeated pattern; and a first charge coupled register for reading the first alternating bands on a line by line basis; and a second charge coupled register for reading the second alternating bands on a line by line basis; wherein all stages of first register include at any instant of time data corresponding to elements of the first color; and further wherein all stages of the second register include at sequential instants of time, data corresponding to elements of the second and third colors, respectively.
Claim 3
Dependent Claim
58 words
A camera according to claim 1 together with a device for generating non-color signals, the device comprising: a multiplier adapted to multiply each signal, corresponding to color element, by a constant coefficient for each color, resulting in three coefficients supplying at the output to the multiplier, signals of equal amplitudes for a non-colored image of constant light intensity.
Claim 4
Dependent Claim
27 words
A camera according to claim 2 further comprising a rejection filter located downstream of the multiplier for eliminating frequency corresponding to the sampling frequency of each color.
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) | 1988-11-11 | 1989-05-13 | 1989-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-11 | 1993-05-13 | 1993-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-11 | 1997-05-13 | 1997-11-12 | $7700.00 | Window Closed / Lapsed |