Modulated-carrier systems

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC COMMUNICATION TECHNIQUE

Subclass:

TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION

Child Classifications

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• H04L 27/01 Equalisers
• H04L 27/02 Amplitude-modulated carrier systems, e.g. using on/off keying; Single sideband or vestigial sideband modulation
• H04L 27/1 Frequency-modulated carrier systems, i.e. using frequency-shift keying
• H04L 27/18 Phase-modulated carrier systems, i.e. using phase-shift keying
• H04L 27/26 Systems using multi-frequency codes
• H04L 27/32 Carrier systems characterised by combinations of two or more of the types covered by groups , , , or