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PCE
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DIFF Subgroup
G01S 3/78

using electromagnetic waves other than radio waves

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received > using electromagnetic waves other than radio waves

CPC:

Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received (position-fixing by co-ordinating a plurality of determinations of direction or position lines G01S5/00) > using electromagnetic waves other than radio waves

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

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  • G01S 3/7803 CPC only CPC only
  • G01S 3/7806 CPC only CPC only
  • G01S 3/781 Details since 1990 IPC+CPC Available in IPC and CPC