CPC Main Group
H03C 1/00 Amplitude modulation (H03C5/00, H03C7/00 take precedence)
12 direct subcodes
Child Classifications
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- H03C 1/02 Details
- H03C 1/08 by means of variable impedance element (H03C1/28 - H03C1/34, H03C1/46 - H03C1/52, H03C1/62 take precedence)
- H03C 1/16 by means of discharge device having at least three electrodes (H03C1/28 - H03C1/34, H03C1/50, H03C1/52, H03C1/62 take precedence)
- H03C 1/28 by means of transit-time tube
- H03C 1/32 by deflection of electron beam in discharge tube
- H03C 1/34 by means of light-sensitive element
- H03C 1/36 by means of semiconductor device having at least three electrodes (H03C1/34, H03C1/50, H03C1/52, H03C1/62 take precedence)
- H03C 1/46 Modulators with mechanically-driven or acoustically-driven parts
- H03C 1/48 by means of Hall-effect devices
- H03C 1/50 by converting angle modulation to amplitude modulation (H03C1/28 - H03C1/34, H03C1/46, H03C1/48 take precedence)
- H03C 1/52 Modulators in which carrier or one sideband is wholly or partially suppressed (H03C1/28 - H03C1/34, H03C1/46, H03C1/48 take precedence)
- H03C 1/62 Modulators in which amplitude of carrier component in output is dependent upon strength of modulating signal, e.g. no carrier output when no modulating signal is present (H03C1/28 - H03C1/34, H03C1/46, H03C1/48 take precedence)