Boots – shoes – and leggings
Patent
1983-08-11
1986-05-27
Smith, Jerry
Boots, shoes, and leggings
364174, 364519, 318603, 400583, 400582, 400902, G05B 1101, B41J 1142
Patent
active
045919690
ABSTRACT:
A positioning system for a line printer uses dc servomotors for driving a forms feed mechanism in increments of one or more line spaces at a time. The system includes a microprocessor and a position counter that counts either 1/4 or 1 degree displacement pulses generated by a motion indicating means including optical transducers and an emitter disk coupled to the motors. The motion indicating means includes an error hold and compensation counter that counts and stores 1/4 degree pulses generated during error movement of the motors relative to a stop position during the uncontrolled state and supplies a corrected 1 degree pulse to the position counter upon start up.
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"Grating Position Up/Down Counter Controller", Carmichael, J. M. et al., IBM Technical Bulletin, vol. 16, No. 10, Mar. 1974, pp. 3306-3307.
"Software-Hardware Dual Mode Servo", Anders, F. G., IBM Technical Bulletin, vol. 20, No. 1, Jun. 1977, pp. 63-64.
Bloom Robert D.
Burke Edward J.
Kozol Eugene T.
Gasper John S.
International Business Machines - Corporation
Lastova John R.
Smith Jerry
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