G
SECTION G — PHYSICS
  
INSTRUMENTS
 G01
MEASURING (counting G06M); TESTING
 G02
OPTICS (making optical elements or apparatus B24B, B29D, C03, or other appropriate sub-classes or classes)
 G03
PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY  [2]
 G04
HOROLOGY
 G05
CONTROLLING; REGULATING (specially adapted to a particular field of use, see the relevant sub-class, e.g. B23Q)
 G05

Note(s)

  1. Attention is drawn to the notes (particularly the definition of the term "variable") on page G 3 of this elaboration.
  2. This class covers methods, systems, and apparatus for controlling in general.
  3. In this class, the following terms are used with the meanings indicated:
    1. "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.
    2. "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; the term "automatic control" is often used in the art as a synonym for "regulation".
 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 [G 3] of this elaboration.
  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.
 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
EDUCATION; CRYPTOGRAPHY; ADVERTISING; SEALS
 G10
MUSICAL INSTRUMENTS; ACOUSTICS
 G10

Note(s)

  1. This class covers generally all sound-emitting devices, whether or not they may be considered as being musical.
  2. The term "musical instrument", used in this class, should not be understood as excluding devices emitting a single sound signal.
  3. For the convenience of users, the following Class Index is given in place of Sub-class Indexes, to show the grouping of the elaborations belonging to different sub-classes, under the 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 these three types. They correspond to groups G10D 17/00 and G10K 7/00, G10K 9/00, G10K 10/00, all the other groups normally finding a definite place.
 G11
INFORMATION STORAGE
 G12
INSTRUMENT DETAILS
  
NUCLEONICS
 G21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING