Dynamic bar pattern method

Claim 1

A method for generating a moving grate of sinusoidal luminance modulated patterns comprising the steps of: computing a first array of sinusoid amplitude numeric values, the computed values defining between 1/4 and N integral sinusoid cycles; generating a plurality of additional sinusoid numeric value arrays each similar to said first array and each containing numeric values phase displaced from said first and succeeding arrays by predetermined increments of sinusoid phase; storing said arrays in incrementally accessable predetermined order; reading a stored array in synchronism with scanning a luminance modulated display, array element value controlling display luminance at each display pixel; repeating the reading of each array in predetermined element order forward or backward to form a grate display of luminance sinusoids; applying predetermined sign correction to read array elements when required to define negative sinusoid portions; continuing the repeated reading for a duration selected in response to desired display and eye persistence; incrementing and decrementing the array reading to succeeding and preceding arrays in storage in response to luminance grate forward and reverse movement requirements, the rate of incrementing determining the rate of luminance sinusoid grate movement.

Claim 2

A method for generating a moving grate of sinusoidal luminance modulated patterns comprising the steps of: computing a first array of sinusoid amplitude numeric values, the computed values defining between 1/4 and N integral sinusoid cycles; generating a plurality of additional sinusoid numeric value arrays each similar to said first array and each containing numeric values phase displaced from said first and succeeding arrays by predetermined increments of sinusoid phase; storing said arrays in incrementally accessable predetermined order; reading a stored array in synchronism with scanning a luminance modulated display, array element value controlling display luminance at each display pixel; repeating the reading of each array in predetermined element order forward or backward to form a grate display of luminance sinusoids; applying predetermined sign correction to read array elements when required to define negative sinusoid portions; continuing the repeated reading for a duration selected in response to desired display and eye persistence; incrementing and decrementing the array reading to succeeding and preceding arrays in storage in response to luminance grate forward and reverse movement requirements, the rate of incrementing determining the rate of luminance sinusoid grate movement.

Claim 6

A method for generating movable grate of visual stimulus patterns for predetermined modulation waveform and incremented movement ability on a scan fabrication display comprising the steps of: computing a first two-dimensional array of predetermined waveform amplitude values, said array having constant numeric values along a first axis and said waveform amplitude numeric values along the second axis thereof and being of predetermined waveform phase resolution and waveform cycle content; generating second and subsequent arrays of numeric values one for each said increment of waveform phase resolution, each said generated array being similar to said first array and including numeric values successively phase displaced from said first array values by predetermined said increments of waveform phase; storing said numeric value arrays in predetermined access order arrangement; accessing said array stored numeric values in synchronism with display scanning, array numeric values respectively controlling display stimuli at each scanned pixel; and incrementing, decrementing and repeating said array numeric value accessing to succeeding, preceding and presently accessed arrays in accordance with rates determined by eye persistence and an operator grate movement control signal.

Claim 7

A method for generating movable grate of visual stimulus patterns for predetermined modulation waveform and incremented movement ability on a scan fabrication display comprising the steps of: computing a first two-dimensional array of predetermined waveform amplitude values, said array having constant numeric values along a first axis and said waveform amplitude numeric values along the second axis thereof and being of predetermined waveform phase resolution and waveform cycle content; generating second and subsequent arrays of numeric values one for each said increment of waveform phase resolution, each said generated array being similar to said first array and including numeric values successively phase displaced from said first array values by predetermined said increments of waveform phase; storing said numeric value arrays in predetermined access order arrangement; accessing said array stored numeric values in synchronism with display scanning, array numeric values respectively controlling display stimuli at each scanned pixel; and incrementing, decrementing and repeating said array numeric value accessing to succeeding, preceding and presently accessed arrays in accordance with rates determined by eye persistence and an operator grate movement control signal.