Pulse or digital communications – Repeaters – Testing
Patent
1984-07-02
1986-04-08
Griffin, Robert L.
Pulse or digital communications
Repeaters
Testing
455 44, 332 19, H03C 306
Patent
active
045817499
ABSTRACT:
An automatic deviation control circuit for an angle modulated data transmitter is disclosed wherein the deviation level of modulated data is controlled by a modulation cancelling deviation error detection feedback loop. After the modulation is cancelled from a sample of modulated carrier by a predetermined value of deviation, residual modulation is detected, sampled following a predetermined number of like-level data bits, and applied to the modulation path gain to increase or decrease the deviation such that the residual modulation is minimized.
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Carney Scott N.
Goode Steven H.
Linder Donald L.
Gillman James W.
Glenny Raymond C.
Griffin Robert L.
Jenski Raymond A.
Motorola Inc.
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