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PCE
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DIFF Subgroup
G01S 3/803

using amplitude comparison of signals derived from receiving transducers or transducer systems having differently-oriented directivity characteristics

Introduced: January 1990

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 ultrasonic, sonic or infrasonic waves > Systems for determining direction or deviation from predetermined direction > using amplitude comparison of signals derived from receiving transducers or transducer systems having differently-oriented directivity characteristics

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 ultrasonic, sonic or infrasonic waves > Systems for determining direction or deviation from predetermined direction > using amplitude comparison of signals derived from receiving transducers or transducer systems having differently-oriented directivity characteristics

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

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