H03D1/2209 - CPC Classification Index

ClassID:

218956 ⎘

H03D1/2209 - CPC Classification

Classification description:

Demodulation of amplitude-modulated oscillations; Homodyne or synchrodyne circuits Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders

Sub-classes:

H03D1/2218 » {using diodes for the decoding} 1
H03D1/2227 » {using switches for the decoding } 0
H03D1/2236 » {using a phase locked loop} 2

Recent Application in this class:

20260088762

DIGITAL ENVELOPE DETECTOR CIRCUIT, CORRESPONDING SYSTEM-ON-CHIP AND METHOD OF OPERATION

20190356523

Demultiplexer and method of controlling the same, and display device

20170288741

Demodulator of a wireless communication reader

20130039151

Cancellation of products generated by harmonics of a square wave used in square-wave mixing

20090138744

MULTIPLIER DEVICE WITH SUPPRESSION OF HIGHER-ORDER DISTORTION

20070112904

Multiplier device