Patent US5206629A successfully refreshed from Google Patents.
US5206629A
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Spatial light modulator and memory for digitized video display
Assignee: Texas Instruments Inc
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Filing: 1991-07-03
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Granted: 1993-04-27
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Expires: 2011-07-03
Abstract
Abstract A digitized video system utilizes a spatial light modulator which has an array of deformable mirror cells with two or more memory cells associated with each mirror cell. A first decoder address one memory cell associated with most of the mirror cells of the array to display an image. A second decoder address one memory cell of each memory cell in the array to allow information to be stored therein. The array could be subdivided into several arrays with its own decoders as desired.
Inventors
- 👤 Thomas W. DeMond
- 👤 E. Earle Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:19
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/3433; G09G3/346; G02; G02B; G02B27/00; G02B27/48; H; H04; H04N; H04N9/00; H04N9/12; H04N9/31; H04N9/3141; H04N9/315; H04N9/3161; G09G2300/00; G09G2300/08; G09G2300/0809; G09G2300/0814; G09G2300/0842
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
49 words
A spatial modulator comprising: (a) an array of display cells; (b) a plurality of memory cells; (c) each said display selectively and alternatively directly connected to at least two different ones of said memory cells; and (d) addressing circuitry for selecting which of said memory cells is directly connected.
Claim 2
Dependent Claim
49 words
A spatial modulator comprising: (a) an array of display cells; (b) a plurality of memory cells; (c) each said display selectively and alternatively directly connected to at least two different ones of said memory cells; and (d) addressing circuitry for selecting which of said memory cells is directly connected.
Claim 3
Dependent Claim
14 words
Modulator as in claim 1 wherein each memory cell includes at least two components.
Claim 4
Dependent Claim
11 words
Modulator as in claim 2 wherein one component is a transistor.
Claim 5
Dependent Claim
10 words
Modulator as in claim 2 wherein one component stores capacitively.
Claim 6
Dependent Claim
10 words
Modulator as in claim 2 wherein both components are transistors.
Claim 7
Dependent Claim
13 words
Modulator as in claim 1 wherein said memory cell is implemented in CMOS.
Claim 8
Dependent Claim
13 words
Modulator as in claim 1 wherein said memory cell is implemented in NMOS.
Claim 9
Dependent Claim
13 words
Modulator as in claim 1 wherein said memory cell is implemented in PMOS.
Claim 10
Independent Claim
88 words
A method of operating an array of display cells comprising the steps of: (a) addressing a plurality of memory cells for storing information therein, at least two different memory cells of said plurality associated with each said display cell; (b) receiving data associated with each of said display cells with one of said at least two different memory cells; (c) selecting others of said at least two memory cells for direct connection to said associated display cells; and (d) controlling said display cells in response to said selecting.
Claim 11
Independent Claim
88 words
A method of operating an array of display cells comprising the steps of: (a) addressing a plurality of memory cells for storing information therein, at least two different memory cells of said plurality associated with each said display cell; (b) receiving data associated with each of said display cells with one of said at least two different memory cells; (c) selecting others of said at least two memory cells for direct connection to said associated display cells; and (d) controlling said display cells in response to said selecting.
Claim 12
Dependent Claim
50 words
A spatial light modulator comprising: (a) an array of display cells; (b) a plurality of memory cells; (c) each said display cell selectively controlled by at least two different ones of said memory cells; and (d) all of said display cells and said memory cells formed on a common substrate.
Claim 13
Dependent Claim
50 words
A spatial light modulator comprising: (a) an array of display cells; (b) a plurality of memory cells; (c) each said display cell selectively controlled by at least two different ones of said memory cells; and (d) all of said display cells and said memory cells formed on a common substrate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-26 | 1996-10-26 | 1997-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-26 | 2000-10-26 | 2001-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-26 | 2004-10-26 | 2005-04-27 | $7700.00 | Window Closed / Lapsed |