DEMODULATOR OF AMPLITUDE-MODULATED, FREQUENCY-MODULATED, PHASE-MODULATED SIGNALS WITH MODULATION TYPE INDICATION Russian patent published in 2005 - IPC

Abstract RU 2257666 C1

FIELD: radio communications.

SUBSTANCE: device has signals normalization block 1, demodulator 2, signals comparison block 3, support level block 4, logical processing and modulation type indication block 5. Block 4 and 5 are made at analog comparator, on first, second and third support inputs of which threshold voltage U1, U2, U3 are fed and five logical elements AND-NO, to inputs of which voltage is fed from outputs of analog comparator, and to outputs of three of them modulation type indication elements are connected. Block 5 for decreasing number of bodies therein is made on three XOR elements with open collector output.

EFFECT: broader functional capabilities.

2 cl, 3 dwg, 2 tbl

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RU 2 257 666 C1

Authors

Filimonov B.K.

Luganskaja G.I.

Balunin E.I.

Dates

2005-07-27Published

2003-12-05Filed