AU2359100A - Efficient demodulation techniques for a wireless location system - Google Patents

Efficient demodulation techniques for a wireless location system

Info

Publication number
AU2359100A
AU2359100A AU23591/00A AU2359100A AU2359100A AU 2359100 A AU2359100 A AU 2359100A AU 23591/00 A AU23591/00 A AU 23591/00A AU 2359100 A AU2359100 A AU 2359100A AU 2359100 A AU2359100 A AU 2359100A
Authority
AU
Australia
Prior art keywords
location system
wireless location
demodulation techniques
efficient demodulation
efficient
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU23591/00A
Other languages
English (en)
Inventor
James D. Haverty
Joseph W. Sheenan
Louis A Stilp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skyhook Holding Inc
Original Assignee
Trueposition Inc
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
Priority claimed from US09/227,764 external-priority patent/US6184829B1/en
Application filed by Trueposition Inc filed Critical Trueposition Inc
Publication of AU2359100A publication Critical patent/AU2359100A/en
Abandoned legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205Details
    • G01S5/021Calibration, monitoring or correction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/06Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S1/00Beacons 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
    • G01S1/02Beacons 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 radio waves
    • G01S1/022Means for monitoring or calibrating
    • G01S1/026Means for monitoring or calibrating of associated receivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/50Connection management for emergency connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
AU23591/00A 1999-01-08 1999-12-13 Efficient demodulation techniques for a wireless location system Abandoned AU2359100A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09227764 1999-01-08
US09/227,764 US6184829B1 (en) 1999-01-08 1999-01-08 Calibration for wireless location system
US22867399A 1999-01-12 1999-01-12
US09228673 1999-01-12
PCT/US1999/029506 WO2000041404A2 (fr) 1999-01-08 1999-12-13 Procede puissant de demodulation pour systeme de radiolocalisation

Publications (1)

Publication Number Publication Date
AU2359100A true AU2359100A (en) 2000-07-24

Family

ID=26921737

Family Applications (1)

Application Number Title Priority Date Filing Date
AU23591/00A Abandoned AU2359100A (en) 1999-01-08 1999-12-13 Efficient demodulation techniques for a wireless location system

Country Status (2)

Country Link
AU (1) AU2359100A (fr)
WO (1) WO2000041404A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7783299B2 (en) 1999-01-08 2010-08-24 Trueposition, Inc. Advanced triggers for location-based service applications in a wireless location system
WO2018067276A1 (fr) 2016-10-05 2018-04-12 Exxonmobil Chemical Patents Inc. Procédé de production de nitrures métalliques et de carbures métalliques
CN109790024B (zh) 2016-10-05 2023-04-14 埃克森美孚化学专利公司 制备金属氮化物和金属碳化物的方法
US20220161243A1 (en) 2019-02-28 2022-05-26 Exxonmobil Chemical Patents Inc. Catalyst Compositions and Precursors, Processes for Making the Same and Syngas Conversion Processes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155590A (en) * 1990-03-20 1992-10-13 Scientific-Atlanta, Inc. System for data channel level control
US5428667A (en) * 1993-03-11 1995-06-27 Harris Corporation Multi-channel cellular communications intercept system

Also Published As

Publication number Publication date
WO2000041404A3 (fr) 2000-09-21
WO2000041404A2 (fr) 2000-07-13

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase