HK1175940A2 - Positioning system and method based on ultrasound - Google Patents

Positioning system and method based on ultrasound

Info

Publication number
HK1175940A2
HK1175940A2 HK13103506.6A HK13103506A HK1175940A2 HK 1175940 A2 HK1175940 A2 HK 1175940A2 HK 13103506 A HK13103506 A HK 13103506A HK 1175940 A2 HK1175940 A2 HK 1175940A2
Authority
HK
Hong Kong
Prior art keywords
ultrasound
method based
positioning system
positioning
Prior art date
Application number
HK13103506.6A
Inventor
Lam Hiu Fung
Lam Raymond Hiu-Wai
Original Assignee
Sengital Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sengital Ltd filed Critical Sengital Ltd
Publication of HK1175940A2 publication Critical patent/HK1175940A2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
HK13103506.6A 2013-01-18 2013-01-18 Positioning system and method based on ultrasound HK1175940A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HK13100863.9A HK1174195A2 (en) 2013-01-18 2013-01-18 Positioning system and method based on ultrasound

Publications (1)

Publication Number Publication Date
HK1175940A2 true HK1175940A2 (en) 2013-07-12

Family

ID=48482777

Family Applications (2)

Application Number Title Priority Date Filing Date
HK13100863.9A HK1174195A2 (en) 2013-01-18 2013-01-18 Positioning system and method based on ultrasound
HK13103506.6A HK1175940A2 (en) 2013-01-18 2013-01-18 Positioning system and method based on ultrasound

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK13100863.9A HK1174195A2 (en) 2013-01-18 2013-01-18 Positioning system and method based on ultrasound

Country Status (2)

Country Link
CN (1) CN103941228B (en)
HK (2) HK1174195A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104459626A (en) * 2014-11-13 2015-03-25 南昌大学 Ultrasonic wave indoor positioning method based on CDMA-TDMA combination
CN108647683B (en) * 2018-04-28 2021-08-17 浙江大学 Method and system for generating character confrontation verification code based on frequency domain noise addition
CN109001683A (en) * 2018-07-16 2018-12-14 柳州治业科技有限公司 One kind being used for indoor ultrasonic positioning system
CN113030848A (en) * 2021-03-19 2021-06-25 星阅科技(深圳)有限公司 Device for distinguishing whether sound is directional sound source

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003344012A (en) * 2002-05-29 2003-12-03 Sony Corp Apparatus and method for position recognition
US8614695B2 (en) * 2005-06-07 2013-12-24 Intel Corporation Ultrasonic tracking
CN103323812B (en) * 2007-03-27 2016-04-27 高通股份有限公司 For the system and method for locating
JP5157931B2 (en) * 2009-01-20 2013-03-06 大日本印刷株式会社 Information embedding device for acoustic signal and position detecting device using acoustic signal
CN102033222B (en) * 2010-11-17 2013-02-13 吉林大学 Large-scale multiple-object ultrasonic tracking and locating system and method
CN102156285A (en) * 2011-03-16 2011-08-17 杭州华韵天略电子科技有限公司 Method and system for performing three-dimensional location by ultrasonic waves

Also Published As

Publication number Publication date
HK1174195A2 (en) 2013-05-31
CN103941228B (en) 2016-06-01
CN103941228A (en) 2014-07-23

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Legal Events

Date Code Title Description
PEU Short-term patents expired

Effective date: 20210117