G01S1/78 - CPC Classification Index

ClassID:

172258 ⎘

G01S1/78 - CPC Classification

Classification description:

Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves; Systems for determining direction or position line using amplitude comparison of signals transmitted from transducers or transducer systems having differently-oriented characteristics

Sub-classes:

G01S1/783 » {the signals being transmitted sequentially} 1
G01S1/786 » {the signals being transmitted simultaneously} 1

Recent Application in this class:

20240152663

2024-05-09

Acoustic positioning transmitter and receiver system and method

20190272348

2019-09-05

Acoustic positioning transmitter and receiver system and method

20170048618

2017-02-16

Transmitter and position information management system

20120014425

2012-01-19

Method and apparatus for determining UE mobility status