Pino, E.A.

position video cross-hair pulse device counter frame computer data sequence counter line sync pulses transfer output position data cross-hair device line sync pulse video frame clock signal display pixel frame sync pulse video signal x position y video outputs video source measurement sequence order recording direction length data input cross-hair position sync pulses sync pulse scale factors value 1/2 video pictures video level range dot clock requirement video recorder input source position changes resolution f data transfer /or frame grabbers 4- bit words e c 350 dec pc 350 engineering hardware r gates 1 gating data transfer sequence microscope calibration slide subroutine counter loading pulses position data bits f f 2 july 1987 467 1/6 nonsynchronisable video sources ls 193 counters f f i number data sync pulse 1 circuit diagram dot clock generator fortran 77 subroutine screen ixcnt movement recorder scale data transfer block position range alignment