US5489952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for multi-format television
Assignee: Texas Instruments Inc
•
Filing: 1993-07-14
•
Granted: 1996-02-06
•
Expires: 2013-07-14
Abstract
Abstract A multi-format display system including hardware and algorithms for digital and High Definition Television. The system includes a light source (120), a tuner/preprocessor unit (114), a processor unit (116), a spatial light modulator (118), and a display surface (128). The processor unit can scale and format the data for a number of standardized-format video broadcast signals, and can perform additional interpolation to eliminate artifacts.
Inventors
- 👤 Robert J. Gove
- 👤 Jeffrey B. Sampsell
- 👤 Vishal Markandey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:19
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/01; H04N7/0117; H04N7/0122; H04N7/12; H04N5/00; H04N5/74; H04N5/7416; H04N5/7458
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
56 words
A multi-format television system comprising: a. a processing unit, operable to change the dimensions of an image; b. a spatial light modulator for forming said image directly from digital data; c. a light source for providing light to said spatial light modulator for forming said image; and d. a surface on which to display said image.
Claim 2
Dependent Claim
56 words
A multi-format television system comprising: a. a processing unit, operable to change the dimensions of an image; b. a spatial light modulator for forming said image directly from digital data; c. a light source for providing light to said spatial light modulator for forming said image; and d. a surface on which to display said image.
Claim 3
Dependent Claim
23 words
The system as claimed in claim 1 wherein said system includes a tuner/preprocessing unit, operable to perform digitization and signal conditioning as necessary.
Claim 4
Dependent Claim
13 words
The system of claim 1 wherein said spatial light modulator has square pixels.
Claim 5
Dependent Claim
13 words
The system of claim 1 wherein said spatial light modulator has hexagonal pixels.
Claim 6
Dependent Claim
18 words
The system of claim 1 wherein said spatial light modulator is a digital micromirror device with square pixels.
Claim 7
Dependent Claim
18 words
The system of claim 1 wherein said spatial light modulator is a digital micromirror device with hexagonal pixels.
Claim 8
Dependent Claim
34 words
The system as claimed in claim 1 wherein said processing unit includes a tuner/preprocessing unit which is operable to receive said image as an analog signal and said processing unit scales said signal digitally.
Claim 9
Dependent Claim
34 words
The system as claimed in claim 1 wherein said processing unit includes a tuner/preprocessing unit which is operable to receive said image as a digital signal and said processing unit scales said signal digitally.
Claim 10
Dependent Claim
37 words
The system as claimed in claim 1 wherein said processing unit includes a tuner/preprocessing unit which is operable to receive said image as a digital signal and said processing unit resamples said image in an analog fashion.
Claim 11
Dependent Claim
94 words
The system as claimed in claim 1 wherein said system includes a subsystem for altering the spatial resolution, comprising: a. a counter for incrementing each pixel of the scaled image; b. a circuit for determining the intensity of the pixel of the scaled image using the intensities of the pixels on either side of said pixel of the scaled image; and c. a circuit for determining the location of the pixel of the scaled image using the distance of said pixel from the pixels on either side of said pixel of the scaled image.
References Cited (Backward Citations)
US3233040A
Cited
US4498101A
Cited
US4729030A
Cited
US4879602A
Cited
US4945423A
Cited
US5267045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-05 | 1999-08-07 | 2000-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-05 | 2003-08-07 | 2004-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-05 | 2007-08-07 | 2008-02-06 | $7700.00 | Window Closed / Lapsed |