AU3120500A - Multiple demodulation protocols for a wireless location system - Google Patents

Multiple demodulation protocols for a wireless location system

Info

Publication number
AU3120500A
AU3120500A AU31205/00A AU3120500A AU3120500A AU 3120500 A AU3120500 A AU 3120500A AU 31205/00 A AU31205/00 A AU 31205/00A AU 3120500 A AU3120500 A AU 3120500A AU 3120500 A AU3120500 A AU 3120500A
Authority
AU
Australia
Prior art keywords
location system
wireless location
multiple demodulation
demodulation protocols
protocols
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
AU31205/00A
Inventor
Robert J. Anderson
Jeffrey F Bull
Tim J. Harris
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 AU3120500A publication Critical patent/AU3120500A/en
Abandoned legal-status Critical Current

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
    • G01S5/02—Position-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
    • G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • 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
    • G01S5/02—Position-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
    • 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
    • G01S5/02—Position-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
    • G01S5/0205—Details
    • G01S5/021—Calibration, monitoring or correction
    • 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
    • G01S1/00—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
    • G01S1/02—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 radio waves
    • G01S1/022—Means for monitoring or calibrating
    • G01S1/026—Means for monitoring or calibrating of associated receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects
    • H04B2201/7071—Efficiency-related aspects with dynamic control of receiver resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
AU31205/00A 1999-01-08 1999-12-13 Multiple demodulation protocols for a wireless location system Abandoned AU3120500A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09/227,764 US6184829B1 (en) 1999-01-08 1999-01-08 Calibration for wireless location system
US09227764 1999-01-08
US22821599A 1999-01-11 1999-01-11
US09228215 1999-01-11
PCT/US1999/029581 WO2000041319A2 (en) 1999-01-08 1999-12-13 Multiple demodulation protocols for a wireless location system

Publications (1)

Publication Number Publication Date
AU3120500A true AU3120500A (en) 2000-07-24

Family

ID=26921734

Family Applications (1)

Application Number Title Priority Date Filing Date
AU31205/00A Abandoned AU3120500A (en) 1999-01-08 1999-12-13 Multiple demodulation protocols for a wireless location system

Country Status (2)

Country Link
AU (1) AU3120500A (en)
WO (1) WO2000041319A2 (en)

Families Citing this family (3)

* 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
CN110703184A (en) * 2019-10-22 2020-01-17 四川九洲空管科技有限责任公司 Full-digital Doppler very-high-frequency omnidirectional beacon system
CN111917796B (en) * 2020-08-12 2022-04-26 怀化建南电子科技有限公司 Power grid equipment communication method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2749456B2 (en) * 1991-03-06 1998-05-13 三菱電機株式会社 Wireless communication equipment
JP2776094B2 (en) * 1991-10-31 1998-07-16 日本電気株式会社 Variable modulation communication method
US5668837A (en) * 1993-10-14 1997-09-16 Ericsson Inc. Dual-mode radio receiver for receiving narrowband and wideband signals
CA2150938C (en) * 1993-10-28 1999-09-07 Ricardo Lim Demodulator logic unit adaptable to multiple data protocols

Also Published As

Publication number Publication date
WO2000041319A2 (en) 2000-07-13
WO2000041319A3 (en) 2000-09-21

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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