H03D   1/00		Ĵ줿ưĴʣȣģȣģȣģͥ表ǥĴ줿ƥŬĴ㡥󥪥դΥ󥰤Ѥ롤󥰥¦Ӥޤϻα¦Ĵȣ̣	Demodulation of amplitude-modulated oscillations(<b>H03D5/00</b>, <b>H03D9/00</b>, <b>H03D11/00</b> take precedence; amplitude demodulators adapted for digitally modulated carrier systems, e.g. using on-off keying, single sideband or vestigial sideband modulation <b>H04L27/06</b>)	2178
H03D   1/02			Details	113
H03D   1/04		׿ˤ뺮㸺뤿Ĵѷ	Modifications of demodulators to reduce interference by undesired signals	1219
H03D   1/06		Ҥߤ㸺뤿Ĵѷ㡥鵢Ԥˤ	Modifications of demodulators to reduce distortion, e.g. by negative feedback	604
H03D   1/08		üǻҤˤΡʣȣģȣģȣģͥ	by means of non-linear two-pole elements(<b>H03D1/22</b>, <b>H03D1/26</b>, <b>H03D1/28</b> take precedence)	116
H03D   1/10		ɤˤ	of diodes	795
H03D   1/12		٤ȣģ٤ȤǤ	with provision for equalising AC and DC loads	35
H03D   1/14		ʾüҤͭǻҤˤΡʣȣģȣģȣģͥ	by means of non-linear elements having more than two poles(<b>H03D1/22</b>, <b>H03D1/26</b>, <b>H03D1/28</b> take precedence)	35
H03D   1/16		ŻҴɤˤ	of discharge tubes	252
H03D   1/18		ȾƳ֤ˤ	of semiconductor devices	680
H03D   1/20		׷Ĵͽɤ뤿ΤΡ㡥åɸȲϩˤ륢ΡɸȤͽɤ뤿Τ	with provision for preventing undesired type of demodulation, e.g. preventing anode detection in a grid detection circuit	12
H03D   1/22		ۥϩޤϥ󥯥ϩ	Homodyne or synchrodyne circuits	1504
H03D   1/24		Ĥ¦ȤޤȤޤϰް줿ĴΤΤ	for demodulation of signals wherein one sideband or the carrier has been wholly or partially suppressed	598
H03D   1/26		ŻԻַŻҴɤˤ	by means of transit-time tubes	99
H03D   1/28		ŻҴŻҥӡиˤΡʣȣģͥ	by deflecting an electron beam in a discharge tube(<b>H03D1/26</b> takes precedence)	14
H03D   3/00		Ĵ줿ưĴʣȣģȣģȣģͥ表ǥĴ줿ƥŬĴʤȿեȥ󥰤Ѥȣ̣ǥĴ줿ƥŬĴȣ̣	Demodulation of angle-modulated oscillations(<b>H03D5/00</b>, <b>H03D9/00</b>, <b>H03D11/00</b> take precedence; frequency demodulators adapted for digitally modulated carrier systems, i.e. using frequency shift keying <b>H04L27/14</b>; phase demodulators adapted for digitally modulated carrier systems, i.e. using phase shift keying <b>H04L27/22</b>)	4127
H03D   3/02		Ͽ椫줿Ĥο֤ΰ꺹θȤˤΡʣȣģȣģͥ	by detecting phase difference between two signals obtained from input signal(<b>H03D3/28 to H03D3/32</b>  take precedence)	961
H03D   3/04		ưΥη׿ޤʬˤ	by counting or integrating cycles of oscillations	388
H03D   3/06		ŪޤĴǤηˤ	by combining signals additively or in product demodulators	635
H03D   3/08		ɤˤΡ㡥ե쥤̴	by means of diodes, e.g. Foster-Seeley discriminator	257
H03D   3/10		ƥɤƱȾˤƱƳ̤Ρ㡥쥷ȴ	in which the diodes are simultaneously conducting during the same half period of the signal, e.g. ratio detector	211
H03D   3/12		ʾŶˤͭŻҴɤˤ	by means of discharge tubes having more than two electrodes	62
H03D   3/14		ʾŶˤͭȾƳ֤ˤ	by means of semiconductor devices having more than two electrodes	193
H03D   3/16		ŵŪˤ	by means of electromechanical resonators	294
H03D   3/18		Ʊ֤ˤ	by means of synchronous gating arrangements	329
H03D   3/20		ޤϻ³֤꺹˰¸褦ʥѥ륹ȯ	producing pulses whose amplitude or duration depends on the phase difference	88
H03D   3/22		Ĵ٤椫졤ļȿк˴ط꺹ģĤο椬ä룳ʾŶˤͭǽưǻҤˤΡ㡥ոȴ	by means of active elements with more than two electrodes to which two signals are applied derived from the signal to be demodulated and having a phase difference related to the frequency deviation, e.g. phase detector	395
H03D   3/24		Ϣưʣݣȯˤ꿶ưӽޤϽ뤿Ĵѷ	Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits	1825
H03D   3/26		ƱĴϩޤϥꥢ󥹲ϩηФ뿶ȿˤΡʣȣģȣģͥ	by means of sloping amplitude/frequency characteristic of tuned or reactive circuit(<b>H03D3/28 to H03D3/32</b>  take precedence)	315
H03D   3/28		Ѳαƶ㸺뤿Ĵѷ	Modifications of demodulators to reduce effect of temperature variations	60
H03D   3/30		ŻԻַŻҴɤˤ	by means of transit-time tubes	7
H03D   3/32		ŻҴŻҥӡиˤΡʣȣģͥ	by deflecting an electron beam in a discharge tube(<b>H03D3/30</b> takes precedence)	26
H03D   3/34		ŵǻҤˤΡʣȣģͥˡΣ	by means of electromechanical devices(<b>H03D3/16</b> takes precedence)	42
H03D   5/00		Ǥդ˿ĴޤϳĴ줿ưĴ뤿βϩʣȣģȣģͥ表ĴȳĴȤ߹碌ˤäħդ롤ǥĴ줿ƥŬĴ㡥ľĴȣ̣	Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will(<b>H03D9/00</b>, <b>H03D11/00</b> take precedence; demodulators adapted for digitally modulated carrier systems characterised by combinations of amplitude and angle modulation, e.g. quadrature amplitude modulation <b>H04L27/38</b>)	663
H03D   7/00		ĤȤ¾ȤؤĴѴ㡥ȿѴʣȣģȣģͥ表ȿѴȤѤ줿Ͷѥȥåȣơ	Transference of modulation from one carrier to another, e.g. frequency-changing(<b>H03D9/00</b>, <b>H03D11/00</b> take precedence; dielectric amplifiers, magnetic amplifiers, parametric amplifiers used as frequency-changers <b>H03F</b>)	2751
H03D   7/02		ɤˤΡʣȣģȣģͥ	by means of diodes(<b>H03D7/14 to H03D7/22</b>  take precedence)	617
H03D   7/04		ͭɡ㡥ȥͥɡˤ	having negative resistance characteristic, e.g. tunnel diode	83
H03D   7/06		ʾŶˤͭŻҴɤˤΡʣȣģȣģͥ	by means of discharge tubes having more than two electrodes(<b>H03D7/14 to H03D7/22</b>  take precedence)	90
H03D   7/08		礵٤椬Ʊ죲Ŷ˴֤˰ä	the signals to be mixed being applied between the same two electrodes	260
H03D   7/10		礵٤椬ۤʤФŶ˴֤˰ä	the signals to be mixed being applied between different pairs of electrodes	307
H03D   7/12		ʾŶˤͭȾƳ֤ˤΡʣȣģȣģͥ	by means of semiconductor devices having more than two electrodes(<b>H03D7/14 to H03D7/22</b>  take precedence)	1728
H03D   7/14		ʿ	Balanced arrangements	3132
H03D   7/16		¿żȿѴʥѡإƥȣ£	Multiple frequency-changing(superheterodyne receivers <b>H04B1/26</b>)	3474
H03D   7/18		᡼ȿ뤿μȿѴѷ	Modifications of frequency-changers for eliminating image frequencies	952
H03D   7/20		ŻԻַŻҴɤˤ	by means of transit-time tubes	62
H03D   7/22		ŻҴŻҥӡиˤΡʣȣģͥ	by deflecting an electron beam in a discharge tube(<b>H03D7/20</b> takes precedence)	19
H03D   9/00		Ĵ줿żȤĴޤѴʸĴ뤿ΡĴĴѴ뤿ΡޤϸμȿѴ뤿ʤޤ֣ǣƣ	Demodulation or transference of modulation of modulated electromagnetic waves(devices or arrangements for demodulating light, transferring the modulation of modulated light or for changing the frequency of light <b>G02F2/00</b>)	274
H03D   9/02		ʬۥ󥹤ʬۥѥ󥹤ѤĴ㡥ˤ	Demodulation using distributed inductance and capacitance, e.g. in feeder lines	192
H03D   9/04		Ĵ줿ưΤΤ	for angle-modulated oscillations	200
H03D   9/06		ʬۥ󥹤ʬۥѥ󥹤ѤĴѴ	Transference of modulation using distributed inductance and capacitance	1794
H03D  11/00		ĶĴϩ	Super-regenerative demodulator circuits	63
H03D  11/02		Ĵ줿ưΤΤ	for amplitude-modulated oscillations	377
H03D  11/04		ʾŶˤͭȾƳ֤ˤ	by means of semiconductor devices having more than two electrodes	100
H03D  11/06		Ĵ줿ưΤΤ	for angle-modulated oscillations	44
H03D  11/08		ʾŶˤͭȾƳ֤ˤ	by means of semiconductor devices having more than two electrodes	17
H03D  13/00		ߤΩʣĤοưΰޤϼȿӤ뤿βϩŰή֤ޤŰ֤ޤή֤ΰѤ¬ꤹ֣ǣң	Circuits for comparing the phase or frequency of two mutually-independent oscillations(arrangements for measuring phase angle between a voltage and a current or between voltages or currents <b>G01R25/00</b>)	2122
H03D  99/00		Υ֥饹¾Υ롼פʬवʤΣ	Subject matter not provided for in other groups of this subclass	18
