by integrating acceleration or speed, i.e. inertial navigation

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Navigation; Navigational instruments not provided for in groups > by using measurement of speed or acceleration > executed aboard the object being navigated; Dead reckoning > by integrating acceleration or speed, i.e. inertial navigation

CPC:

Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 (measuring distance traversed on the ground by a vehicle G01C22/00; control of position, course, altitude or attitude of vehicles G05D1/00; traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968) > by using measurements of speed or acceleration (G01C21/24, G01C21/26 take precedence) > executed aboard the object being navigated; Dead reckoning > by integrating acceleration or speed, i.e. inertial navigation

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Child Classifications

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G01C 21/165 +3 CPC CPC only CPC only
G01C 21/166 CPC only CPC only
G01C 21/18 Stabilised platforms, e.g. by gyroscope IPC+CPC Available in IPC and CPC
G01C 21/183 +2 CPC CPC only CPC only