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IPC-Stelle: H03F 3/30 1-Punkt Untergruppe [Version 2024.01 (aktuell), Sprache EN - English]

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Hierarchielinien

DEKLA-Gruppen

Symbol		Titel
A Hierarchieinformationen		HUMAN NECESSITIES
B Hierarchieinformationen		PERFORMING OPERATIONS; TRANSPORTING
C Hierarchieinformationen		CHEMISTRY; METALLURGY
D Hierarchieinformationen		TEXTILES; PAPER
E Hierarchieinformationen		FIXED CONSTRUCTIONS
F Hierarchieinformationen		MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G Hierarchieinformationen		PHYSICS
H Hierarchieinformationen		ELECTRICITY
H01 Hierarchieinformationen		ELECTRIC ELEMENTS
H02 Hierarchieinformationen		GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H03 Hierarchieinformationen		ELECTRONIC CIRCUITRY
H03B Hierarchieinformationen		GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS (generators specially adapted for electrophonic musical instruments G10H; masers or lasers H01S; generation of oscillations in plasma H05H)
H03C Hierarchieinformationen		MODULATION (masers or lasers H01S; coding, decoding or code conversion H03M)
H03D Hierarchieinformationen		DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER (masers, lasers H01S; circuits capable of acting both as modulator and demodulator H03C, e.g. balanced modulators H03C 1/54; details applicable to both modulators and frequency-changers H03C; demodulating pulses which have been modulated with a continuously-variable signal H03K 9/00; transforming types of pulse modulation H03K 11/00; relay systems, e.g. repeater stations H04B 7/14; demodulators adapted for digitally modulated-carrier systems H04L 27/00; synchronous demodulators adapted for colour television H04N 9/66)
H03F Hierarchieinformationen		AMPLIFIERS
H03F 1/00 Hierarchieinformationen		Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements [1, 2006.01]
H03F 3/00 Hierarchieinformationen		Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements [1, 2006.01]
H03F 3/02 Hierarchieinformationen		. with tubes only [1, 2006.01]
H03F 3/04 Hierarchieinformationen		. with semiconductor devices only [1, 2006.01]
H03F 3/06 Hierarchieinformationen		. . using hole storage effect [1, 2006.01]
H03F 3/08 Hierarchieinformationen		. . controlled by light [1, 2006.01]
H03F 3/10 Hierarchieinformationen		. . with diodes [1, 2006.01]
H03F 3/12 Hierarchieinformationen		. . . with Esaki diodes [1, 2006.01]
H03F 3/14 Hierarchieinformationen		. . with amplifying devices having more than three electrodes or more than two PN junctions [1, 2006.01]
H03F 3/16 Hierarchieinformationen		. . with field-effect devices [1, 2006.01]
H03F 3/18 Hierarchieinformationen		. with semiconductor devices of complementary types [1, 2006.01]
H03F 3/181 Hierarchieinformationen		. Low-frequency amplifiers, e.g. audio preamplifiers [2, 2006.01]
H03F 3/183 Hierarchieinformationen		. . with semiconductor devices only [2, 2006.01]
H03F 3/185 Hierarchieinformationen		. . . with field-effect devices (H03F 3/187 takes precedence) [2, 2006.01]
H03F 3/187 Hierarchieinformationen		. . . in integrated circuits [2, 2006.01]
H03F 3/189 Hierarchieinformationen		. High-frequency amplifiers, e.g. radio frequency amplifiers [2, 2006.01]
H03F 3/19 Hierarchieinformationen		. . with semiconductor devices only [2, 2006.01]
H03F 3/191 Hierarchieinformationen		. . . Tuned amplifiers (H03F 3/193, H03F 3/195 take precedence) [2, 2006.01]
H03F 3/193 Hierarchieinformationen		. . . with field-effect devices (H03F 3/195 takes precedence) [2, 2006.01]
H03F 3/195 Hierarchieinformationen		. . . in integrated circuits [2, 2006.01]
H03F 3/20 Hierarchieinformationen		. Power amplifiers, e.g. Class B amplifiers, Class C amplifiers (H03F 3/26-H03F 3/30 take precedence) [1, 2006.01]
H03F 3/21 Hierarchieinformationen		. . with semiconductor devices only [2, 2006.01]
H03F 3/213 Hierarchieinformationen		. . . in integrated circuits [2, 2006.01]
H03F 3/217 Hierarchieinformationen		. . . Class D power amplifiers; Switching amplifiers [2, 2006.01]
H03F 3/22 Hierarchieinformationen		. . with tubes only (H03F 3/24 takes precedence) [1, 2006.01]
H03F 3/24 Hierarchieinformationen		. . of transmitter output stages [1, 2006.01]
H03F 3/26 Hierarchieinformationen		. Push-pull amplifiers; Phase-splitters therefor (duplicated single-ended push-pull arrangements or phase-splitters therefor H03F 3/30) [1, 2006.01]
H03F 3/28 Hierarchieinformationen		. . with tubes only [1, 2006.01]
H03F 3/30 Hierarchieinformationen		. Single-ended push-pull amplifiers; Phase-splitters therefor [1, 2006.01]
H03F 3/32 Hierarchieinformationen		. . with tubes only [1, 2006.01]
H03F 3/34 Hierarchieinformationen		. DC amplifiers in which all stages are dc-coupled (H03F 3/45 takes precedence) [1, 3, 2006.01]
H03F 3/343 Hierarchieinformationen		. . with semiconductor devices only [2, 2006.01]
H03F 3/345 Hierarchieinformationen		. . . with field-effect devices (H03F 3/347 takes precedence) [2, 2006.01]
H03F 3/347 Hierarchieinformationen		. . . in integrated circuits [2, 2006.01]
H03F 3/36 Hierarchieinformationen		. . with tubes only [1, 2006.01]
H03F 3/38 Hierarchieinformationen		. DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers [1, 2006.01]
H03F 3/387 Hierarchieinformationen		. . with semiconductor devices only [2, 2006.01]
H03F 3/393 Hierarchieinformationen		. . . with field-effect devices [2, 2006.01]
H03F 3/40 Hierarchieinformationen		. . with tubes only [1, 2006.01]
H03F 3/42 Hierarchieinformationen		. Amplifiers with two or more amplifying elements having their dc paths in series with the load, the control electrode of each element being excited by at least part of the input signal, e.g. so-called totem-pole amplifiers [1, 2006.01]
H03F 3/44 Hierarchieinformationen		. . with tubes only [1, 2006.01]
H03F 3/45 Hierarchieinformationen		. Differential amplifiers [2, 2006.01]
H03F 3/46 Hierarchieinformationen		. Reflex amplifiers [1, 2006.01]
H03F 3/48 Hierarchieinformationen		. . with tubes only [1, 2006.01]
H03F 3/50 Hierarchieinformationen		. Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower [1, 2006.01]
H03F 3/52 Hierarchieinformationen		. . with tubes only [1, 2006.01]
H03F 3/54 Hierarchieinformationen		. Amplifiers using transit-time effect in tubes or semiconductor devices (parametric amplifiers H03F 7/00; solid state travelling-wave devices H10N 70/10) [1, 2006.01]
H03F 3/55 Hierarchieinformationen		. . with semiconductor devices only [2, 2006.01]
H03F 3/56 Hierarchieinformationen		. . using klystrons [1, 2006.01]
H03F 3/58 Hierarchieinformationen		. . using travelling-wave tubes [1, 2006.01]
H03F 3/60 Hierarchieinformationen		. Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators (H03F 3/54 takes precedence) [1, 2006.01]
H03F 3/62 Hierarchieinformationen		. Two-way amplifiers [1, 2006.01]
H03F 3/64 Hierarchieinformationen		. . with tubes only [1, 2006.01]
H03F 3/66 Hierarchieinformationen		. Amplifiers simultaneously generating oscillations of one frequency and amplifying signals of another frequency [1, 2006.01]
H03F 3/68 Hierarchieinformationen		. Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics [1, 2006.01]
H03F 3/70 Hierarchieinformationen		. Charge amplifiers [2, 2006.01]
H03F 3/72 Hierarchieinformationen		. Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal [2, 2006.01]
H03F 5/00 Hierarchieinformationen		Amplifiers with both discharge tubes and semiconductor devices as amplifying elements [1, 2006.01]
H03F 7/00 Hierarchieinformationen		Parametric amplifiers [1, 2006.01]
H03F 9/00 Hierarchieinformationen		Magnetic amplifiers [1, 2006.01]
H03F 11/00 Hierarchieinformationen		Dielectric amplifiers [1, 2006.01]
H03F 13/00 Hierarchieinformationen		Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier [1, 2006.01]
H03F 15/00 Hierarchieinformationen		Amplifiers using galvano-magnetic effects not involving mechanical movement, e.g. using Hall effect [1, 2006.01]
H03F 17/00 Hierarchieinformationen		Amplifiers using electroluminescent element or photocell [1, 2006.01]
H03F 19/00 Hierarchieinformationen		Amplifiers using superconductivity effects [1, 2006.01]
H03F 99/00 Hierarchieinformationen		Subject matter not provided for in other groups of this subclass [2009.01]
H03G Hierarchieinformationen		CONTROL OF AMPLIFICATION
H03H Hierarchieinformationen		IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS (measuring, testing G01R; arrangements for producing a reverberation or echo sound G10K 15/08; impedance networks or resonators consisting of distributed impedances, e.g. of the waveguide type, H01P; control of amplification, e.g. bandwidth control of amplifiers, H03G; tuning resonant circuits, e.g. tuning coupled resonant circuits, H03J; networks for modifying the frequency characteristics of communication systems H04B)
H03J Hierarchieinformationen		TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
H03K Hierarchieinformationen		PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D 3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M) [4]
H03L Hierarchieinformationen		AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES (generation of oscillations H03B) [3]
H03M Hierarchieinformationen		CODING, DECODING OR CODE CONVERSION, IN GENERAL (using fluidic means F15C 4/00; optical analogue/digital converters G02F 7/00; coding, decoding or code conversion, specially adapted for particular applications, see the relevant subclasses, e.g. G01D, G01R, G06F, G06T, G09G, G10L, G11B, G11C, H04B, H04L, H04M, H04N; ciphering or deciphering for cryptography or other purposes involving the need for secrecy G09C) [4]
H04 Hierarchieinformationen		ELECTRIC COMMUNICATION TECHNIQUE
H05 Hierarchieinformationen		ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H10 Hierarchieinformationen		SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR [2023.01]
H99 Hierarchieinformationen		SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]

Zu vergleichende IPC-Stelle: Es wurden im Verzeichnis noch keine IPC-Stellen für die Vergleichsansicht vorgemerkt. [Version , Sprache ]