ClassID:

172312

G01S3/72 - CPC Classification

Classification description:

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 radio waves Diversity systems specially adapted for direction-finding

Recent Application in this class:
#1
20250321311
2025-10-16

ANGLE OF ARRIVAL ESTIMATION USING A SINGLE RECEIVE CHAIN

#2
20250044396
2025-02-06

MULTIPORT DF ANTENNAS AND DF SYSTEMS

#3
20250044395
2025-02-06

MULTIPORT DF ANTENNAS AND DF SYSTEMS

#4
20250012886
2025-01-09

Electronic Device Having Angle of Arrival Detection Capabilities

#5
20240369668
2024-11-07

Rapid, automatic directional beam alignment in 5G/6G networks

#6
20240201305
2024-06-20

DIRECTION FINDER ANTENNA SYSTEM

#7
20240192301
2024-06-13

SYSTEMS, METHODS, AND APPARATUS FOR ESTIMATING ANGLE OF ARRIVAL

#8
20240053426
2024-02-15

Orientation Determination of a Wireless Device

#9
20240036144
2024-02-01

DIRECTION FINDING ANTENNA

#10
20230408622
2023-12-21

Low-complexity beam alignment by directional phase in 5G and 6G

#11
20230258758
2023-08-17

Angle of arrival estimation using a single receive chain

#12
20230079214
2023-03-16

Dynamic antenna configuration

#13
20220407612
2022-12-22

Phased beam-alignment pulse for rapid localization in 5G and 6G

#14
20220381868
2022-12-01

Angle of arrival estimation using a single receive chain

#15
20220214419
2022-07-07

Position measuring device

#16
20220113363
2022-04-14

Direction of arrival estimation

#17
20210351494
2021-11-11

Electronic device having angle of arrival detection capabilities

#18
20210311156
2021-10-07

Retrospective interferometry direction finding

#19
20210156947
2021-05-27

Radio wave arrival direction estimation apparatus

#20
20210098881
2021-04-01

Multiport DF antennas and DF systems

#21
20210048502
2021-02-18

Method and apparatus for enhanced positioning in 5G-NR using DAOD and DAOA

#22
20200200853
2020-06-25

Control device

#23
20190386401
2019-12-19

Wireless camera tracking system

#24
20190369200
2019-12-05

Radiovision device

#25
20190302218
2019-10-03

Efficiently measuring phase differences in an angle of arrival system

#26
20190293743
2019-09-26

Direction of arrival estimation

#27
20190146052
2019-05-16

Channel-based positioning device, channel-based positioning system and channel-based positioning method

#28
20190004140
2019-01-03

Method for determining the direction of arrival in presence of aliasing and associated device

#29
20180210061
2018-07-26

Method and device for direction finding with direction evaluation

#30
20170163318
2017-06-08

Method and apparatus for transmitting feedback signals

#31
20170134900
2017-05-11

Signaling usage of cyclic shift diversity in transmitting wireless devices

#32
20170117946
2017-04-27

Apparatus for estimating arrival-angle and apparatus for beam-forming

#33
20160381498
2016-12-29

Method and apparatus for transmitter geo-location in mobile platforms

#34
20160041254
2016-02-11

Method for the passive localization of radar transmitters

#35
20160033613
2016-02-04

System and methods for information collection and processing for location estimation in MIMO wireless networks

#36
20160006121
2016-01-07

Reconfigurable radio direction finder system and method

#37
20150304979
2015-10-22

Characterizing multipath delays in antenna array and synthetic aperture radar systems

#38
20150301152
2015-10-22

Localization with non-synchronous emission and multipath transmission

#39
20140266908
2014-09-18

Determining access point orientation based on neighbor access point locations

#40
20130321201
2013-12-05

Systems and methods for the selection of antennas in aircraft navigation systems

#41
20130169485
2013-07-04

Coded aperture beam analysis method and apparatus

#42
20130096861
2013-04-18

Method and apparatus for testing received signals in a radio signal positioning system

#43
20120183102
2012-07-19

Receiver Circuits and Systems for Receiving Medium Wave and Short Wave Signals

#44
20120162012
2012-06-28

Orientation and localization system

#45
20070218870
2007-09-20

Radio communication apparatus and radio communication system

#46
20050270229
2005-12-08

Positioning system with a sparse antenna array

#47
20050270227
2005-12-08

Positioning system with intentional multi-path signal

#48
20050259006
2005-11-24

Beam forming apparatus and method using interference power estimation in an array antenna system

#49
15983362
2019-10-15

Wireless camera tracking system