Telegraphy – Code transmitters – Rotary contact
Patent
1974-12-26
1979-02-20
Safourek, Benedict V.
Telegraphy
Code transmitters
Rotary contact
328115, 328162, 307231, H04B 1700, H04L 2506
Patent
active
041408748
ABSTRACT:
Circuitry for establishing a variable voltage reference for a circuit which amplifies and shifts an input signal. When a known input signal is applied to the circuitry, a counter is incremented to increase in a stepped fashion the variable voltage until the circuit output reaches a region of tolerance around a desired set point. The counter is then stopped and remains in that state, holding the variable voltage reference at its last value.
REFERENCES:
patent: 3374479 (1968-03-01), Moore
patent: 3470480 (1969-09-01), Smart et al.
patent: 3634770 (1972-01-01), Spreitzhofer
patent: 3754232 (1973-08-01), Gut et al.
patent: 3772604 (1973-11-01), Hogg et al.
patent: 3810157 (1974-05-01), Kallio
Masinick Michael A.
Safourek Benedict V.
Xerox Corporation
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