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Symbol IPC-Stellen auswählen Titel
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONS; TRANSPORTING
C
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CHEMISTRY; METALLURGY
D
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TEXTILES; PAPER
E
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FIXED CONSTRUCTIONS
F
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MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G
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PHYSICS
G01
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INSTRUMENTS
G01
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MEASURING (counting G06M)TESTING
G02
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OPTICS (making optical elements or apparatus B24B , B29D 11/00 , C03 , or other appropriate subclasses or classes; materials per se, see the relevant places, e.g. C03B , C03C)
G03
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PHOTOGRAPHYCINEMATOGRAPHYANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVESELECTROGRAPHYHOLOGRAPHY (reproduction of pictures or patterns by scanning and converting into electrical signals H04N) [4]
G04
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HOROLOGY
G05
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CONTROLLINGREGULATING
G05B
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CONTROL OR REGULATING SYSTEMS IN GENERALFUNCTIONAL ELEMENTS OF SUCH SYSTEMSMONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (fluid-pressure actuators or systems acting by means of fluids in general F15B; valves per se F16K; characterised by mechanical features only G05G; sensitive elements, see the appropriate subclasses, e.g. G12B , subclasses of G01 , H01; correcting units, see the appropriate subclasses, e.g. H02K)
G05D
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SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES (for continuous casting of metals B22D 11/16; valves per se F16K; sensing non-electric variables, see the relevant subclasses of G01; for regulating electric or magnetic variables G05F)
G05F
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SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES (regulating the timing or recurrence frequency of pulses in radar or radio navigation systems G01S; regulation of current or voltage, specially adapted for use in electronic time-pieces G04G 19/02; closed-loop systems for regulating non-electric variables by electric means G05D; regulating power supply of digital computers G06F 1/26; for obtaining desired operating characteristics of electromagnets with armatures H01F 7/18; regulating electric power distribution networks H02J; regulating the charging of batteries H02J 7/00; regulating of the output of static converters, e.g. switching regulators, H02M; regulation of the output of electric generators H02N , H02P 9/00; controlling transformers, reactors or choke coils H02P 13/00; regulating frequency response, gain, maximum output, amplitude or bandwidth of amplifiers H03G; regulating tuning of resonant circuits H03J; controlling generators of electronic oscillations or pulses H03L; regulating characteristics of transmission lines H04B; controlling electric light sources H05B 37/02 , H05B 39/04 , H05B 41/36; electric control of X-ray apparatus H05G 1/30) [4, 5]
G05F 1/00
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Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
G05F 1/02
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Regulating electric characteristics of arcs (arrangements for feeding or moving of electrodes for spot or seam welding or cutting B23K 9/12; arrangements for feeding electrodes for electric heating or electric lighting H05B 7/109 , H05B 31/18; automatic control of power for heating by discharge H05B 7/148) [2]
G05F 1/04
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. . by means of saturable magnetic devices
G05F 1/06
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. . by means of discharge tubes
G05F 1/08
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. . by means of semiconductor devices
G05F 1/10
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Regulating voltage or current (G05F 1/02 takes precedence; for electric railways B60M 3/02)
G05F 1/12
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. . wherein the variable is actually regulated by the final control device is ac (G05F 1/625 takes precedence) [4]
G05F 1/13
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. . . using ferroresonant transformers as final control devices [4]
G05F 1/14
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. . . using tap transformers or tap changing inductors as final control devices [4]
G05F 1/147
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. . . . with motor driven tap switch [4]
G05F 1/153
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. . . . . controlled by discharge tubes or semiconductor devices [4]
G05F 1/16
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. . . . combined with discharge tubes or semiconductor devices
G05F 1/20
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. . . . . semiconductor devices only
G05F 1/22
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. . . . combined with separate magnetic control devices having a controllable degree of saturation
G05F 1/24
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. . . using bucking or boosting transformers as final control devices
G05F 1/247
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. . . . with motor in control circuit [4]
G05F 1/253
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. . . . the transformers including plural windings in series between source and load (G05F 1/247 takes precedence) [4]
G05F 1/26
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. . . . combined with discharge tubes or semiconductor devices
G05F 1/30
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. . . . . semiconductor devices only
G05F 1/32
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. . . using magnetic devices having a controllable degree of saturation as final control devices
G05F 1/325
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. . . . with specific core structure, e.g. gap, aperture, slot, permanent magnet [4]
G05F 1/33
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. . . . with plural windings through which current to be controlled is conducted [4]
G05F 1/335
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. . . . . on different cores [4]
G05F 1/34
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. . . . combined with discharge tubes or semiconductor devices
G05F 1/38
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. . . . . semiconductor devices only
G05F 1/40
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. . . using discharge tubes or semiconductor devices as final control devices
G05F 1/42
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. . . . discharge tubes only
G05F 1/44
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. . . . semiconductor devices only
G05F 1/445
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. . . . . being transistors in series with the load [3]
G05F 1/45
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. . . . . being controlled rectifiers in series with the load [3]
G05F 1/455
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. . . . . . with phase control [3]
G05F 1/46
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. . wherein the variable actually regulated by the final control device is dc (G05F 1/625 takes precedence) [4]
G05F 1/52
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. . . using discharge tubes in series with the load as final control devices
G05F 1/54
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. . . . additionally controlled by the unregulated supply
G05F 1/56
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. . . using semiconductor devices in series with the load as final control devices
G05F 1/563
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. . . . including two stages of regulation, at least one of which is output level responsive, e.g. coarse and fine regulation [4]
G05F 1/565
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. . . . sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor (G05F 1/563 takes precedence) [4]
G05F 1/567
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. . . . . for temperature compensation [4]
G05F 1/569
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. . . . . for protection [4]
G05F 1/571
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. . . . . . with overvoltage detector [4]
G05F 1/573
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. . . . . . with overcurrent detector [4]
G05F 1/575
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. . . . characterised by the feedback circuit [4]
G05F 1/577
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. . . . for plural loads [4]
G05F 1/585
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. . . . . providing voltages of opposite polarities [4]
G05F 1/59
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. . . . including plural semiconductor devices as final control devices for a single load [4]
G05F 1/595
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. . . . . semiconductor devices connected in series [4]
G05F 1/607
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. . . using discharge tubes in parallel with the load as final control devices [3]
G05F 1/61
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. . . . including two stages of regulation, at least one of which is output level responsive [4]
G05F 1/613
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. . . using semiconductor devices in parallel with the load as final control devices [3]
G05F 1/614
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. . . . including two stages of regulation, at least one of which is output level responsive [4]
G05F 1/618
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. . . using semiconductor devices in series and in parallel with the load as final control devices [4]
G05F 1/62
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. . . using bucking or boosting dc sources
G05F 1/625
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. . wherein it is irrelevant whether the variable actually regulated is ac or dc [4]
G05F 1/63
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. . . using variable impedances in series with the load as final control devices [4]
G05F 1/635
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. . . . being Hall effect devices, magnetoresistors or thermistors [4]
G05F 1/644
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. . . . being pressure-sensitive resistors [4]
G05F 1/648
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. . . . being plural resistors among which a selection is made [4]
G05F 1/652
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. . . using variable impedances in parallel with the load as final control devices [4]
G05F 1/656
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. . . using variable impedances in series and in parallel with the load as final control devices [4]
G05F 1/66
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Regulating electric power
G05F 1/67
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. . to the maximum power available from a generator, e.g. from solar cell [4]
G05F 1/70
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Regulating power factorRegulating reactive current or power [3]
G05F 3/00
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Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
G05F 5/00
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Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output
G05F 7/00
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Regulating magnetic variables (details of apparatus for measuring magnetic variables involving magnetic resonance G01R 33/28) [5]
G05G
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CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms F16C 1/10; gearings or mechanisms not peculiar to this purpose F16H; speed changing or reversing mechanisms for gearings conveying rotary motion F16H 59/00 to F16H 63/00)
G06
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COMPUTINGCALCULATINGCOUNTING (score computers for games A63B 71/06 , A63D 15/20 , A63F 1/18; combinations of writing implements with computing devices B43K 29/08)
G07
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CHECKING-DEVICES
G08
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SIGNALLING (indicating or display devices per se G09F; transmission of pictures H04N)
G09
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EDUCATINGCRYPTOGRAPHYDISPLAYADVERTISINGSEALS
G10
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MUSICAL INSTRUMENTSACOUSTICS
G11
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INFORMATION STORAGE
G12
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INSTRUMENT DETAILS
G21
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NUCLEONICS
G21
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NUCLEAR PHYSICSNUCLEAR ENGINEERING
H
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ELECTRICITY

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