DEVICE FOR GENERATION OF TWO-FREQUENCY AND FOUR- FREQUENCY TELEGRAPH SIGNALS Russian patent published in 1996 - IPC

Abstract RU 2065255 C1

FIELD: radio engineering. SUBSTANCE: device has master oscillator 1, multiple-tap frequency branch 2, accumulating adder 3, two memory units 4, 7, digital-to- analog converter 5, low-pass filter 6, code signal generator 8, encoder 9. EFFECT: increased functional capabilities. 1 dwg

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RU 2 065 255 C1

Authors

Kolesnikova L.N.

Mjakishev O.V.

Dates

1996-08-10—Published

1992-08-10—Filed