Boots – shoes – and leggings
Patent
1979-01-15
1981-01-13
Ruggiero, Joseph F.
Boots, shoes, and leggings
318604, 352 53, G06F 1546
Patent
active
042452988
ABSTRACT:
A system for creating a control reference signal for a remote electrical servo device having a movable output unit wherein the velocity and position of the output unit are controlled by the vector magnitude of the control reference signal. This system includes a digital circuit for creating a first fixed analog signal indicative of a known or desired velocity for the unit during a preselected controlled time interval and a second digital means for creating a desired time base positional profile during the preselected time interval. An encoder arrangement is employed for detecting the actual time base positional profile of the servo output unit during the given time interval so that an analog signal generally proportional to the algebraic difference between the actual and desired time base positional digital profile can be created at various times during the time interval. The control reference signal is then created by a summing circuit as a function of both the first and second analog signals the first of which is proportional to a desired velocity and the second of which is proportional to the algebraic difference between a desired and actual position of the servo output unit.
REFERENCES:
patent: 3752969 (1973-08-01), Kiffmyer et al.
patent: 3828168 (1974-04-01), O'Callaghan et al.
patent: 3902798 (1975-09-01), Trumbull et al.
patent: 3914540 (1975-10-01), Slater
patent: 3917930 (1975-11-01), Davey et al.
patent: 3987282 (1976-10-01), Lau et al.
patent: 4084083 (1978-04-01), McNally et al.
patent: 4086522 (1978-04-01), Engelberger et al.
patent: 4146922 (1979-03-01), Brown et al.
Magicam, Inc.
Ruggiero Joseph F.
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