G
SECTION G — PHYSICS
  
INSTRUMENTS
 G06
COMPUTING; CALCULATING; COUNTING (score computers for games A63B 71/06, A63D 15/20, A63F 1/18; combinations of writing appliances with computing devices B43K 29/08)
 G06

Note(s)

  1. Attention is drawn to the notes (particularly the definition of the term "variable") on page 7 of this Section.
  2. In this class:
    1. The term "data" is understood to be synonymous with "information", and the term "information" is therefore not used in sub-class G06C or G06F.
    2. The terms "calculating" and "computing" are both understood to include, inter alia, operations on numerical values and on data expressed in numerical form; of these words "computing" is used throughout the class. "Computation" is derived from this interpretation of "computing". In the French language the word "calcul" will serve for either word.
    3. In those sub-classes which include simulators:
      1. a simulator in class G06 is concerned with the mathematics of computing the existing or anticipated conditions within the real device or system;
      2. control functions derived from simulators are not in class G06 but are generally in class G05, although they may be in the sub-class for the device controlled;
      3. measurement of an individual variable to serve as an input to a simulator is in class G01;
      4. a simulator is regarded as a teaching or training device proper to class G09 if the simulator gives perceptible sensations having a likeness to the sensations the student would experience in reality in response to actions taken by him. Simulators which demonstrate, by means involving computing, the functioning of apparatus or of a system are in class G06, if no provision exists elsewhere. Components of simulators, if identical with real devices or machines, are classified in the relevant sub-class for these devices or machines and not in class G06 or G09;
      5. a simulator may use the same time scale as the real device or operate on an expanded or compressed time scale;
      6. models of real devices to reduced or expanded scales are not regarded as simulators.
    4. The term "record carrier" is understood to mean a body, such as a cylinder, disc, card, tape, or wire, capable of permanently holding information, which can be read-off by a sensing element movable relative to the recorded information.
 G06G
ANALOGUE COMPUTERS
 G06G 1/00
Hand-manipulated computing devices (planimeters G01B 5/26)
 G06G 1/02
·  Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
 G06G 1/04
·  ·  characterised by construction (G06G 1/10 takes precedence)
 G06G 1/06
·  ·  ·  with rectilinear scales, e.g. slide rule
 G06G 1/08
·  ·  ·  with circular or helical scales
 G06G 1/10
·  ·  characterised by the graduation
 G06G 1/12
·  ·  ·  logarithmic graduations, e.g. for multiplication
 G06G 1/14
·  in which a straight or curved line has to be drawn from given points on one or more input scales to one or more points on a result scale
 G06G 1/16
·  in which a straight or curved line has to be drawn through related points on one or more families of curves
 G06G 3/00
Devices in which the computing operation is performed mechanically (G06G 1/00 takes precedence)
 G06G 3/02
·  for performing additions or subtractions, e.g. differential gearing
 G06G 3/04
·  for performing multiplications or divisions, e.g. variable-ratio gearing
 G06G 3/06
·  for evaluating functions by using cams and cam followers
 G06G 3/08
·  for integrating or differentiating, e.g. by wheel and disc
 G06G 3/10
·  for simulating specific processes, systems, or devices
 G06G 5/00
Devices in which the computing operation is performed by means of fluid-pressure elements (such elements in general F15C)
 G06G 7/00
Devices in which the computing operation is performed by varying electric or magnetic quantities
 G06G 7/02
·  Details not covered by groups G06G 7/04-G06G 7/10
 G06G 7/04
·  input or output devices (graph readers G06K 11/00; function plotters, co-ordinate plotters G06K 15/22)
 G06G 7/06
·  Programming arrangements, e.g. plugboard for interconnecting functional units of the computer; Digital programming
 G06G 7/10
·  Power supply arrangements
 G06G 7/12
·  Arrangements for performing computing operations, e.g. amplifiers specially adapted therefor (amplifiers in general H03F)
 G06G 7/122
·  ·  for optimisation, e.g. least square fitting, linear programming, critical path analysis, gradient method  [2]
 G06G 7/14
·  ·  for addition or subtraction (of vector quantities G06G 7/22)
 G06G 7/16
·  ·  for multiplication or division
 G06G 7/161
·  ·  ·  with pulse modulation, e.g. modulation of amplitude, width, frequency, phase, or form  [2]
 G06G 7/162
·  ·  ·  using galvano-magnetic effects, e.g. Hall effect; using similar magnetic effects  [2]
 G06G 7/163
·  ·  ·  using a variable impedance controlled by one of the input signals, variable amplification or transfer function  [2]
 G06G 7/164
·  ·  ·  using means for evaluating powers, e.g. quarter square multiplier (evaluating powers G06G 7/20)  [2]
 G06G 7/18
·  ·  for integration or differentiation (G06G 7/19 takes precedence)
 G06G 7/182
·  ·  ·  using magnetic elements  [3]
 G06G 7/184
·  ·  ·  using capacitive elements  [3]
 G06G 7/186
·  ·  ·  ·  using an operational amplifier comprising a capacitor or a resistor in the feedback loop  [3]
 G06G 7/188
·  ·  ·  using electromechanical elements  [3]
 G06G 7/19
·  ·  for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions (Fourier or spectrum analysis G01R 23/16; sound analysis or synthesis G10L)
 G06G 7/195
·  ·  ·  using electro-acoustic elements  [3]
 G06G 7/20
·  ·  for evaluating powers, roots, polynomes, mean square values, standard deviation (G06G 7/122, G06G 7/28 take precedence; gamma correction in television systems H04N 5/20, H04N 9/53)
 G06G 7/22
·  ·  for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities (trigonometric computations using simultaneous equations G06G 7/34)
 G06G 7/24
·  ·  for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
 G06G 7/25
·  ·  for discontinuous functions, e.g. backlash, dead zone, limiting, absolute value, or peak value  [2]
 G06G 7/26
·  ·  Arbitrary function generators (using orthogonal functions, e.g. Fourier series, G06G 7/19; using curve follower G06K 11/02)
 G06G 7/28
·  ·  ·  for synthesising functions by piecewise approximation
 G06G 7/30
·  ·  for interpolation or extrapolation (G06G 7/122 takes precedence)  [2]
 G06G 7/32
·  ·  for solving of equations
 G06G 7/34
·  ·  ·  of simultaneous equations (G06G 7/122 takes precedence)  [2]
 G06G 7/36
·  ·  ·  of single equations of quadratic or higher degree (G06G 7/22, G06G 7/24 take precedence)
 G06G 7/38
·  ·  ·  of differential or integral equations
 G06G 7/40
·  ·  ·  ·  of partial differential equations (simulating specific devices G06G 7/48)
 G06G 7/42
·  ·  ·  ·  ·  using electrolytic tank
 G06G 7/44
·  ·  ·  ·  ·  using continuous medium, current-sensitive paper
 G06G 7/46
·  ·  ·  ·  ·  using discontinuous medium, e.g. resistance network
 G06G 7/48
·  Analogue computers for specific processes, systems, or devices, e.g. simulators  [2]
 G06G 7/50
·  ·  for distribution networks, e.g. for fluids (G06G 7/62 takes precedence)
 G06G 7/52
·  ·  for economic systems; for statistics (G06G 7/122, G06G 7/19, G06G 7/20 take precedence)
 G06G 7/54
·  ·  for nuclear physics, e.g. nuclear reactors, radioactive fallout
 G06G 7/56
·  ·  for heat flow (G06G 7/58 takes precedence)
 G06G 7/57
·  ·  for fluid flow (G06G 7/50 takes precedence)
 G06G 7/58
·  ·  for chemical processes (G06G 7/75 takes precedence)
 G06G 7/60
·  ·  for living beings, e.g. their nervous systems
 G06G 7/62
·  ·  for electric systems or apparatus
 G06G 7/625
·  ·  ·  for impedance networks, e.g. determining response, determining poles or zeros, determining the Nyquist diagram (measuring impedance G01R 27/00)  [2]
 G06G 7/63
·  ·  ·  for power apparatus, e.g. motors, or supply distribution networks  [2]
 G06G 7/635
·  ·  ·  ·  for determining the most economical distribution in power systems  [2]
 G06G 7/64
·  ·  for non-electric machines, e.g. turbine
 G06G 7/66
·  ·  for control systems
 G06G 7/68
·  ·  for civil-engineering structures, e.g. beam, strut, girder
 G06G 7/70
·  ·  for vehicles, e.g. to determine permissible loading of ships
 G06G 7/72
·  ·  ·  Flight simulator (Link trainers G09B 9/08)
 G06G 7/75
·  ·  for component analysis, e.g. of mixtures, of colours (G06G 7/122 takes precedence)  [2]
 G06G 7/76
·  ·  for traffic
 G06G 7/78
·  ·  for direction-finding, locating, distance or velocity measuring, or navigation systems
 G06G 7/80
·  ·  for gunlaying; for bomb aiming; for guiding missiles  [2]
 G06G 9/00
Devices in which mathematical operations are carried out with the aid of optical or electro-optical elements (optical elements per se G02B; electro-optical elements per se H01L)