Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
1998-04-23
2001-03-27
Brier, Jeffery (Department: 2679)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
Reexamination Certificate
active
06208322
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to measuring devices utilizing a variable color digital display.
2. Description of the Prior Art
A display device that can change color and selectively display characters is described in my U.S. Pat. No. 4,086,514, issued on Apr. 25, 1978 and entitled Variable Color Display Device.
Multimeters with monochromatic digital display are well known and extensively used. Such multimeters, however, are capable of indicating value of only one measured quantity at a time. They are not capable of simultaneously indicating values of two different quantities, nor are they capable of indicating the relationship of instantly displayed measured value to values measured at other times, nor are they capable of indicating the relationship of the displayed measured value to measurement limits.
A hand held testing device for measuring different electrical quantities disclosed in U.S. Pat. No. 4,298,837, issued on Nov. 3, 1981 to Manfred Koslar, includes test prongs, function and range selectors, and display mounted within a handle such that they may be viewed together.
A digital ohmmeter with electrical continuity tester disclosed in U.S. Pat. No. 4,228,394, issued on Oct. 14, 1980 to John B. Crosby, includes a digital readout, for displaying the measured value of resistance, on which an Omega symbol may be energized to give a rapid indication of the continuity condition.
SUMMARY OF THE INVENTION
It is the principal object of the invention to provide a color control signal converter.
It is another object of the invention to provide a color control signal converter for converting data to color control signals.
It is still another object of the invention to provide a color control signal converter for being interposed between a data source and a color control input of a variable color optical device.
It is still another object of the invention to provide a method of converting data to color control signals.
Further objects of the invention will become apparent from the appended drawings and their description.
In summary, a color control signal converter of the invention includes an input for receiving data representing the portions of a plurality of primary colors. A cycle is defined by repeatedly developing a start signal at the beginning of each cycle. In response to the start signal, an accumulating device starts accumulating the counts respectively proportional to the data and develops an end of count signal when the respective count is accumulated. A bistable device is provided, which includes a plurality of bistable outputs, equal in number to the plurality of the primary colors. Each bistable output develops an active signal in response to the start signal and an inactive signal in response to the respective end of count signal. The color control signals, for controlling the portions of the light signals of the primary colors, are developed in accordance with the active signals.
REFERENCES:
patent: 2643344 (1953-06-01), McLaren et al.
patent: 2648015 (1953-08-01), Greenfield et al.
patent: 2682000 (1954-06-01), Clayton et al.
patent: 2878450 (1959-03-01), Rabier
patent: 2889518 (1959-06-01), Hudson et al.
patent: 3595991 (1971-07-01), Diller
patent: 3719849 (1973-03-01), Steward
patent: 3740570 (1973-06-01), Kaelin et al.
patent: 3760174 (1973-09-01), Boenning et al.
patent: 3771155 (1973-11-01), Hayashi et al.
patent: 3840873 (1974-10-01), Usui
patent: 3873979 (1975-03-01), Craford et al.
patent: 3911418 (1975-10-01), Takeda
patent: 3924227 (1975-12-01), Stolov
patent: 3975726 (1976-08-01), Kawakami
patent: 4086514 (1978-04-01), Havel
patent: 4271408 (1981-06-01), Teshima et al.
patent: 4301450 (1981-11-01), Smoliar
patent: 4360804 (1982-11-01), Ohura
patent: 4488149 (1984-12-01), Givens, Jr.
patent: 4559480 (1985-12-01), Nobs
patent: 4581612 (1986-04-01), Jones
patent: 4647217 (1987-03-01), Havel
patent: 4689613 (1987-08-01), Ikeda
patent: 4709230 (1987-11-01), Popowski et al.
patent: 4712099 (1987-12-01), Maeda
patent: 4720709 (1988-01-01), Imamura et al.
patent: 4725828 (1988-02-01), Cowlishaw
patent: 4740818 (1988-04-01), Tsilibes et al.
patent: 4771274 (1988-09-01), Havel
patent: 4831326 (1989-05-01), Havel
patent: 4845481 (1989-07-01), Havel
patent: 5003298 (1991-03-01), Havel
patent: 3037-500 (1981-04-01), None
patent: 3009416 (1981-09-01), None
patent: 220844 (1985-04-01), None
patent: 2158631A (1985-11-01), None
patent: 57-146112 (1982-09-01), None
SenSym Solid State Barometers Catalog, pp. 9-30, 1983.
Landauer, R. W., “Electroluminescent Display”, IBM Technical Disclosure Bulletin, vol. 8, No. 1, pp. 15-16, Apr. 11, 1996.
Wagner, B., “2-Color LED + Driver=Versatile Visual Effects”, EDN vol. 25, No. 19, Oct. 20, 1980.
Smithline, L.M., “Dual light emitting diode synthesizes polychromatic light”, Electronics, Aug. 16, 1979, p. 130.
Svestka, M. et al, “LED's change color to indicate balance voltage”, Electronic Engineering, vol. 48, No. 576, p. 19, Feb. 1976.
Saitoh, T. et al. “Multi-color light emitting diodes with double junction structure”. IEEE Transactions on Electron Devices, Feb. 1975, vol. ED-22. No. 2, pp. 29-32.
Yamaguchi, T. et al, “a High Brightness Gap Multicolor LED”, IEEE Transactions on Electron Devices, vol. ED-28, No. 5, May 1981, pp. 588-592.
Baker, M., “Chip changes the color of light emitting diodes”, Electronics, Apr. 7, 1981, pp. 158-159.
Rao, V., Two LED's blend and blink to indicate six states. Electronic Design, vol. 30, No. 16, pp. 220, Aug. 5, 1982.
Kojima, T. “Recent flat panel development in Japan”, held in San Diego, CA, Apr. 29-May 1, 1980. SID 80 Digest, pp. 22-23.
Niina, T. et al, “A multi-color GaP LED flat panel display device” Held New York, NY, USA, Apr. 28-30, 1981. 1981 SID International Symposium Digest of Papers, vol. XII (1981), pp. 140-141.
Niina, T. et al, “a multi-color LED flat panel display device for colorful displays of letters and figures”. Proceedings of the SID, vol. 23, No. 2, pp. 73-76, 1982.
O'Mara, P.A. et al, “Microprocessor-controlled light emitting diode dark adaptometer”. Medical & Biological Engineering and Computing, vol. 20, No. 1, pp. 70-76, 1982.
Brier Jeffery
Texas Digital Systems, Inc.
Winstead Sechrest & Minick
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