Cooperative Patent Classification

CPC Definition - Subclass G06G

Printable version [PDF]
Last Updated Version: 2016.11
ANALOGUE COMPUTERS (analogue optical computing devices G06E 3/00)
References
Limiting references

This place does not cover:

Analogue optical computing devices

Computer systems based on specific computational models

Hand manipulated computing devices (planimeters G01B 5/26)
Definition statement

This place covers:

Hand operated, mainly portable, mechanical devices using movable scales (linear or circular) for computing an analogue outcome as a result of the mechanical setting of the input scales.

These are very simple mechanical devices for solving specific problems involving the resolving of one or a limited number of mathematical equations by moving mechanically one scale relative to another scale and reading out the result on another scale. It does not involve electricity nor electronics.

References
Limiting references

This place does not cover:

Planimeters

Digital mechanical computers

Electronic portable computers

Special rules of classification

The documents should be classified in the subgroups of G06G 1/0005 according to their field of application AND in the subgroups of G06G 1/02 according to their construction.

{characterised by a specific application}
Definition statement

This place covers:

For the different applications see the titles of the subgroups.

Special rules of classification

Documents should be classified in every subgroup dealing with a specific application where the hand manipulated analogue computing device is used.

Documents should also be classified in the subgroups of G06G 1/02 according to their construction.

Devices in which computing is effected by adding, substracting, or comparing lengths of parallel or concentric graudated scales {(G06G 1/0005 takes precedence)}
Definition statement

This place covers:

Hand-manipulated devices of the kind specified in the title are classified here independently from the specific application.

The different constructional arrangements of these devices are classified in accordance with the titles of the subgroups under G06G 1/04.

Special rules of classification

The documents should also be classified in the subgroups of G06G 1/0005 according to their field of application.

Devices in which the computing operation is performed mechanically (G06G 1/00 takes precedence)
Definition statement

This place covers:

Pure mechanical analogue computation mechanisms.

References
Limiting references

This place does not cover:

Electric or electronic analogue computers

Digital mechanical computers

Special rules of classification

Obsolete technology, there are currently almost no new publications on the subject.

Devices in which the computing operation is performed by means of fluid-pressure elements (such elements in general F15C)
Definition statement

This place covers:

Analogue computation mechanisms based on fluid-pressure elements, e.g. using water, oil, pneumatics.

References
Limiting references

This place does not cover:

Fluid-circuit elements as such used for computing

Digital fluid-pressure computing devices

Special rules of classification

Obsolete technology, not used anymore.

Devices in which the computing operation is performed by varying electric or magnetic quantities
Definition statement

This place covers:

General analogue computation performed by electric or magnetic elements.

References
Limiting references

This place does not cover:

Analogue control systems

Analogue filters or mixers

Special rules of classification

Documents are to be classified in these subgroups only if they are used for pure computation per se.

Analogue computation for a specific application are classified in the specific application field only.

This is an old technology that is hardly used anymore for performing computation as such. It is mainly used as a component in larger systems such as analogue control systems, telecommunication devices, etc.

Subject matter not provided for in other groups of this subclass
Definition statement

This place covers:

Subject-matter not provided for in G06G 1/00 - G06G 7/80.