Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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H04L27/32
Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
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H04L27/34
Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
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H04L27/38
Demodulator circuits; Receiver circuits
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H04L27/3809
Amplitude regulation arrangements
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