G - Physics – 06 – G
Patent
G - Physics
06
G
354/140, 314/43.
G06G 7/30 (2006.01) G01D 15/14 (2006.01) G01R 13/14 (2006.01) G01R 13/20 (2006.01) G01R 13/26 (2006.01)
Patent
CA 1084105
APPLICATION OF WILLIAM T. QUARTON FOR METHOD AND APPARATUS FOR MAKING HARD COPY RECORDS OF CURVES INCLUDING CURVES WHICH ARE MATHEMATICALLY DESCRIBED AS MULTI-FUNCTIONS FROM PERIODICALLY SAMPLED DATA POINTS ABSTRACT OF THE DISCLOSURE A line scan cathode ray tube (CRT) recorder generates a hard copy record of a curve from stored data represent- ing the X-Y coordinates of a series of a sample points along the curve. The curve may be described mathemati- cally by a multi-valued function. One pass of the recording media past a linear sweeping CRT beam records the entire curve in a predetermined number of recording sweeps. The distance (.DELTA. X and .DELTA. Y, respectively) between each and every Xn, Yn and the next successive stored sample point Xn+1, Yn+1 is determined prior to each recording sweep of the beam and these distances, .DELTA. X and .DELTA. Y, are divided by a predetermined number to give a factor interpolating the distance between successively stored data points (Xn and Xn+1 and Yn and Yn+1). Each recording sweep of the beam represents a band (in the X-axis direction, for example) on the recording media of finite width extending from one recording sweep position up to, but not including, the next recording sweep position. The X-Y coordinates of each sample point are successively incremented by the interpolative value Image and Image , respectively, where "n" equals the number of interpolative steps. The Y-axis coordinate positions of the interpolative value Image are stored correspond- ing to the interpolative X-axis coordinate Image positions within the finite band to be recorded. As the beam sweeps along a given X-axis position, it records a short line for each stored Y-axis position. Subject matter disclosed in this application but not claimed herein is disclosed and claimed in my prior application bearing Serial No. 627,794, filed October 31, 1975. - 2 -
281329
Honeywell Inc.
Smart & Biggar
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