G - Physics – 01 – R
Patent
G - Physics
01
R
375/33
G01R 13/20 (2006.01) G01R 13/40 (2006.01) G02F 1/133 (2006.01) G04G 9/00 (2006.01) G09G 3/00 (2006.01) G09G 3/36 (2006.01)
Patent
CA 1108323
???? A waveform display comprises an opto electric display having m = electrode and n y electrodes arranged in a m x n element matrix. A series of m different reference binary codes are applied simultaneously one to each x electrodes. A waveform to be displayed is sampled and binary numbers representative of the amplitude of each sample are produced. These sample binary numbers are each converted into one of the reference binary codes for application to the Y electrodes; the code so produced being related to both the amplitude value and the order of reference codes on the X electrodes. As a result of the simultaneous application of appropriate binary codes to each X, Y electrodes unselected X Y intersection receive an rms voltage above a display threshold whilst selected X Y intersection receive a zero voltage and collectively display the waveforms. The opto electric display may be a liquid crystal display or an electroluminescent display. The binary codes may be an ordered series of binary numbers represented by logic zeros and ones, having a period T divided into N bits where m = 2N, or period T divided into L bits and using 2N codes out of a possible 2L codes where L is greater than N and m = 2N. Alternatively the binary code may be a pseudo random series of zeros and ones.
308040
Fetherstonhaugh & Co.
National Research Development Corporation
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