DEVICE FOR TRANSMISSION OF ADDITIONAL INFORMATION THROUGH FM BROADCASTING CHANNEL Russian patent published in 1998 - IPC

Abstract RU 2108000 C1

FIELD: radio engineering. SUBSTANCE: device has complex stereo signal generator 1, adder 2 and modulator 7. Goal of invention is achieved by introduced generator 3 for odd harmonic frequency of half sub-carrier frequency. This results in decreased relative interference in channels of main and additional information down to level required by current standards. EFFECT: increased quality and effective distance of reception. 3 cl, 1 dwg

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RU 2 108 000 C1

Authors

Tikhomirov A.V.

Dates

1998-03-27—Published

1994-09-28—Filed