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.
In those sub-classes which include simulators:
a simulator in class Fulltext... Hierarchy... Expanded...G06 is concerned with the mathematics of computing the existing or anticipated conditions within the real device or system;
a simulator is regarded as a teaching or training device proper to class Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...G06 or Fulltext... Hierarchy... Expanded...G09;
a simulator may use the same time scale as the real device or operate on an expanded or compressed time scale;
models of real devices to reduced or expanded scales are not regarded as simulators.
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.
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 Fulltext... Hierarchy... Expanded...F15C)
G06G 7/00
Devices in which the computing operation is performed by varying electric or magnetic quantities
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
· · ·
Quarter square multipliers [2]
G06G 7/18
· ·
for integration or differentiation; for forming intervals
G06G 7/19
· · ·
for forming Fourier integrals; for forming Laplace integrals; for forming correlation integrals
G06G 7/20
· ·
for evaluating powers, roots
G06G 7/22
· ·
for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities (trigonometric computations using simultaneous equations Fulltext... Hierarchy... Expanded...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
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Arbitrary function generators
G06G 7/28
· · ·
for synthesising functions by piecewise approximation