DIFF Subgroup
G01P 5/22 using auto-correlation or cross-correlation detection means
Introduced: January 1985
Full Title
Full titles differ between systems:
IPC:
Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft > by measuring the time taken by the fluid to traverse a fixed distance > using auto-correlation or cross-correlation detection means
CPC:
Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft (application of speed-measuring devices for measuring volume of fluid G01F) > by measuring the time taken to traverse a fixed distance > using auto-correlation or cross-correlation detection means
No child classifications to compare. This is a leaf node in both IPC and CPC.