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IPC-Stelle: H03L 7/195 5-Punkt Untergruppe [Version 2024.01 (aktuell), Sprache EN - English]

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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
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]
H03L 1/00 Hierarchieinformationen		Stabilisation of generator output against variations of physical values, e.g. power supply [3, 2006.01]
H03L 3/00 Hierarchieinformationen		Starting of generators [3, 2006.01]
H03L 5/00 Hierarchieinformationen		Automatic control of voltage, current, or power [3, 2006.01]
H03L 7/00 Hierarchieinformationen		Automatic control of frequency or phase; Synchronisation [3, 2006.01]
H03L 7/02 Hierarchieinformationen		. using a frequency discriminator comprising a passive frequency-determining element [3, 2006.01]
H03L 7/04 Hierarchieinformationen		. . wherein the frequency-determining element comprises distributed inductance and capacitance [3, 2006.01]
H03L 7/06 Hierarchieinformationen		. using a reference signal applied to a frequency- or phase-locked loop [3, 2006.01]
H03L 7/07 Hierarchieinformationen		. . using several loops, e.g. for redundant clock signal generation [5, 2006.01]
H03L 7/08 Hierarchieinformationen		. . Details of the phase-locked loop [3, 2006.01]
H03L 7/081 Hierarchieinformationen		. . . provided with an additional controlled phase shifter [5, 2006.01]
H03L 7/083 Hierarchieinformationen		. . . the reference signal being additionally directly applied to the generator [5, 2006.01]
H03L 7/085 Hierarchieinformationen		. . . concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal (H03L 7/10 takes precedence; circuits for comparing the phase or frequency of two mutually-independent oscillations H03D 13/00) [5, 2006.01]
H03L 7/087 Hierarchieinformationen		. . . . using at least two phase detectors or a frequency and phase detector in the loop [5, 2006.01]
H03L 7/089 Hierarchieinformationen		. . . . the phase or frequency detector generating up-down pulses (H03L 7/087 takes precedence) [5, 2006.01]
H03L 7/091 Hierarchieinformationen		. . . . the phase or frequency detector using a sampling device (H03L 7/087 takes precedence) [5, 2006.01]
H03L 7/093 Hierarchieinformationen		. . . . using special filtering or amplification characteristics in the loop (H03L 7/087-H03L 7/091 take precedence) [5, 2006.01]
H03L 7/095 Hierarchieinformationen		. . . . using a lock detector (H03L 7/087 takes precedence) [5, 2006.01]
H03L 7/097 Hierarchieinformationen		. . . . using a comparator for comparing the voltages obtained from two frequency to voltage converters [5, 2006.01]
H03L 7/099 Hierarchieinformationen		. . . concerning mainly the controlled oscillator of the loop [5, 2006.01]
H03L 7/10 Hierarchieinformationen		. . . for assuring initial synchronisation or for broadening the capture range [3, 2006.01]
H03L 7/107 Hierarchieinformationen		. . . . using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth [5, 2006.01]
H03L 7/113 Hierarchieinformationen		. . . . using frequency discriminator [5, 2006.01]
H03L 7/12 Hierarchieinformationen		. . . . using a scanning signal [3, 2006.01]
H03L 7/14 Hierarchieinformationen		. . . for assuring constant frequency when supply or correction voltages fail [3, 2006.01]
H03L 7/16 Hierarchieinformationen		. . Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop [3, 2006.01]
H03L 7/18 Hierarchieinformationen		. . . using a frequency divider or counter in the loop (H03L 7/20, H03L 7/22 take precedence) [3, 2006.01]
H03L 7/181 Hierarchieinformationen		. . . . a numerical count result being used for locking the loop, the counter counting during fixed time intervals [5, 2006.01]
H03L 7/183 Hierarchieinformationen		. . . . a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number [5, 2006.01]
H03L 7/185 Hierarchieinformationen		. . . . . using a mixer in the loop (H03L 7/187-H03L 7/195 take precedence) [5, 2006.01]
H03L 7/187 Hierarchieinformationen		. . . . . using means for coarse tuning the voltage controlled oscillator of the loop (H03L 7/191-H03L 7/195 take precedence) [5, 2006.01]
H03L 7/189 Hierarchieinformationen		. . . . . . comprising a D/A converter for generating a coarse tuning voltage [5, 2006.01]
H03L 7/191 Hierarchieinformationen		. . . . . using at least two different signals from the frequency divider or the counter for determining the time difference (H03L 7/193, H03L 7/195 take precedence) [5, 2006.01]
H03L 7/193 Hierarchieinformationen		. . . . . the frequency divider/counter comprising a commutable pre-divider, e.g. a two modulus divider [5, 2006.01]
H03L 7/195 Hierarchieinformationen		. . . . . in which the counter of the loop counts between two different non zero numbers, e.g. for generating an offset frequency (H03L 7/193 takes precedence) [5, 2006.01]
H03L 7/197 Hierarchieinformationen		. . . . a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division [5, 2006.01]
H03L 7/199 Hierarchieinformationen		. . . . . with reset of the frequency divider or the counter, e.g. for assuring initial synchronisation [5, 2006.01]
H03L 7/20 Hierarchieinformationen		. . . using a harmonic phase-locked loop, i.e. a loop which can be locked to one of a number of harmonically related frequencies applied to it (H03L 7/22 takes precedence) [3, 2006.01]
H03L 7/22 Hierarchieinformationen		. . . using more than one loop [3, 2006.01]
H03L 7/23 Hierarchieinformationen		. . . . with pulse counters or frequency dividers [5, 2006.01]
H03L 7/24 Hierarchieinformationen		. using a reference signal directly applied to the generator [3, 2006.01]
H03L 7/26 Hierarchieinformationen		. using energy levels of molecules, atoms, or subatomic particles as a frequency reference [3, 2006.01]
H03L 9/00 Hierarchieinformationen		Automatic control not provided for in other groups of this subclass [2006.01]
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 ]