G
SECTION G — PHYSICS
  
INSTRUMENTS
 G01
MEASURING (counting G06M); TESTING
 G02
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)
 G02

Note(s)

In this class, the following expression is used with the meaning indicated:

  • "optical" applies not only to visible light but also to ultra-violet or infra-red radiations.

 G03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY (reproduction of pictures or patterns by scanning and converting into electrical signals H04N)
 G03

Note(s)

In this class, the following terms are used with the meaning indicated:

  • "records" means photographs or any other kind of latent, directly-visible or permanent storage of pictorial information, which consist of an imagewise distribution of a quantity, e.g. an electric charge pattern, recorded on a carrier member;
  • "optical" applies not only to visible light but also to ultra-violet or infra-red radiations.

 G04
HOROLOGY
 G05
CONTROLLING; REGULATING (specially adapted to a particular field of use, see the relevant subclass for that field, e.g. B23Q)
 G05

Note(s)

  1. This class covers methods, systems, and apparatus for controlling, in general.
  2. In this class, the following terms or expressions are used with the meanings indicated:
    • "controlling" means influencing a variable in any way, e.g. changing its direction or its value (including changing it to or from zero), maintaining it constant, limiting its range of variation;
    • "regulation" means maintaining a variable automatically at a desired value or within a desired range of values. The desired value or range may be fixed, or manually varied, or may vary with time according to a predetermined "programme" or according to variation of another variable. Regulation is a form of control;
    • "automatic control" is often used in the art as a synonym for "regulation".
  3. Attention is drawn to the Notes following the title of section G, especially as regards the definition of the term "variable".
 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. This class covers:
    • simulators which are concerned with the mathematics of computing the existing or anticipated conditions within the real device or system;
    • simulators which demonstrate, by means involving computing, the function of apparatus or of a system, if no provision exists elsewhere.
  2. This class does not cover:
    • control functions derived from simulators, in general, which are covered by class G05, although such functions may be covered by the subclass of this class for the device controlled;
    • measurement of an individual variable to serve as an input to a simulator, which is covered by class G01;
    • simulators regarded as teaching or training devices which is the case if they give perceptible sensations having a likeness to the sensations a student would experience in reality in response to actions taken by him. Such simulators are covered by class G09;
    • components of simulators, if identifical with real devices or machines, which are covered by the relevant subclass for these devices or machines (and not by class G09).
  3. In this class, the following terms or expressions are used with the meanings indicated:
    • "data" is used as the synonym of "information". Therefor the term "information" is not used in subclass G06C or F;
    • 'calculating" or "computing" includes, inter alia, operations on numerical values and on data expressed in numerical form. Of these terms "computing" is used throughout the class;
    • "computation" is derived from this interpretation of "computing". In the French language the term "calcul" will serve for either term;
    • "simulator" is a device which may use the same time scale as the real device or operate on an expanded or compressed time scale. In interpreting this term models of real devices to reduced or expanded scales are not regarded as simulators;
    • "record carrier" means 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.
  4. Attention is drawn to the Notes following the title of section G, especially as regards the definition of the term "variable".
 G07
CHECKING-DEVICES
 G08
SIGNALLING (indicating or display devices per se G09F; transmission of pictures H04N; arrangements for selective calling from one station to another H04Q 9/00)
 G09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
 G10
MUSICAL INSTRUMENTS; ACOUSTICS
 G10

Note(s)

  1. This class covers all sound-emitting devices, in general, whether or not they may be considered as being musical.
  2. In this class, the following expression is used with the meaning indicated:
    • "musical instrument" does not exclude devices emitting a single sound signal.
  3. The following Class Index is given in place of subclass indexes, to show the grouping of the elaborations belonging to different subclasses, under the following three fundamental types:
    • wind instruments;
    • string instruments;
    • percussion instruments,
    which relate clearly to the majority of instruments.
  4. There are of course some instruments of which the principle of operation belongs less clearly to one of the three types mentioned in Note (3). They correspond to groups G10D 17/00 or G10K 7/00, G10K 9/00 or G10K 15/04, all the other groups normally finding a definite place.
 G11
INFORMATION STORAGE
 G12
INSTRUMENT DETAILS
  
NUCLEONICS
 G21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING