DEVICE FOR TRANSMITTING AND RECEIVING ADDITIONAL INFORMATION SIGNAL OVER FREQUENCY-MODULATED BROADCASTING CHANNEL Russian patent published in 1997 - IPC

Abstract RU 2079972 C1

FIELD: information transceiving facilities. SUBSTANCE: additional information of adjustable amplifier is introduced in signal transmission channel; amplifier gain control is effected with respect to total part A+B of complex stereo signal spectrum. Similar processing of complex stereo signal during reception of combined signal enables recovery of constant additional information signal level. EFFECT: provision for nondistorted transmission of both broadcasting signal and additional information when used in personal radio communication systems, etc. 2 cl, 4 dwg

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RU 2 079 972 C1

Authors

Tikhomirov A.V.

Dates

1997-05-20—Published

1994-09-28—Filed