Slew length timer

Details Slew length timer Slew length timer

1982-09-09

1985-07-30

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340742, 340743, G09G 108

Patent

active

045325049

ABSTRACT:
A slew length timer generates a variable time delay to signal the end of slew to a display symbol generator. Two memories, one for each deflection channel, are addressed by the starting and ending beam positions in a corresponding channel and programmed to provide coded output signals representative of the delay for that channel. A third memory receives the output signals from the two prior memories as its address and provides a binary count of the longer of the two delays specified by the first two memories. This binary count is coupled through the control terminals of a variable delay which provides an end of slew signal in accordance therewith.

REFERENCES:
patent: 3539860 (1970-10-01), Max et al.
patent: 3746912 (1973-07-01), Redecker et al.
patent: 3786483 (1974-01-01), Sinobad
patent: 3952297 (1976-04-01), Stauffer et al.
patent: 4093996 (1978-06-01), Hogan et al.

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