IL151754A0 - Modified transmission method for improving accuracy of wireless location system - Google Patents

Modified transmission method for improving accuracy of wireless location system

Info

Publication number
IL151754A0
IL151754A0 IL15175401A IL15175401A IL151754A0 IL 151754 A0 IL151754 A0 IL 151754A0 IL 15175401 A IL15175401 A IL 15175401A IL 15175401 A IL15175401 A IL 15175401A IL 151754 A0 IL151754 A0 IL 151754A0
Authority
IL
Israel
Prior art keywords
wireless
wireless transmitter
digits
sequence
length
Prior art date
Application number
IL15175401A
Other languages
English (en)
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
Application filed by Trueposition Inc filed Critical Trueposition Inc
Publication of IL151754A0 publication Critical patent/IL151754A0/xx

Links

Classifications

    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/50—Connection management for emergency connections
    • 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
    • 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
    • G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/001—Transmission of position information to remote stations
    • G01S2205/006—Transmission of position information to remote stations for emergency situations
    • 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
    • G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/001—Transmission of position information to remote stations
    • G01S2205/008—Transmission of position information to remote stations using a mobile telephone network

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Emergency Management (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Steroid Compounds (AREA)
  • Radio Transmission System (AREA)
IL15175401A 2000-03-31 2001-03-22 Modified transmission method for improving accuracy of wireless location system IL151754A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/541,888 US6334059B1 (en) 1999-01-08 2000-03-31 Modified transmission method for improving accuracy for e-911 calls
PCT/US2001/009078 WO2001076093A1 (fr) 2000-03-31 2001-03-22 Procede d'emission modifie permettant d'ameliorer la precision d'appels e-911

Publications (1)

Publication Number Publication Date
IL151754A0 true IL151754A0 (en) 2003-04-10

Family

ID=24161512

Family Applications (2)

Application Number Title Priority Date Filing Date
IL15175401A IL151754A0 (en) 2000-03-31 2001-03-22 Modified transmission method for improving accuracy of wireless location system
IL151754A IL151754A (en) 2000-03-31 2002-09-12 Modified transmission method for improving accuracy of wireless location system

Family Applications After (1)

Application Number Title Priority Date Filing Date
IL151754A IL151754A (en) 2000-03-31 2002-09-12 Modified transmission method for improving accuracy of wireless location system

Country Status (14)

Country Link
US (3) US6334059B1 (fr)
EP (1) EP1275209B1 (fr)
JP (1) JP4971573B2 (fr)
KR (1) KR100735001B1 (fr)
CN (1) CN1327634C (fr)
AT (1) ATE389304T1 (fr)
AU (1) AU2001245917A1 (fr)
BR (1) BR0107538A (fr)
CA (1) CA2403039C (fr)
DE (1) DE60133185D1 (fr)
GB (1) GB2377863B (fr)
IL (2) IL151754A0 (fr)
MX (1) MXPA02009450A (fr)
WO (1) WO2001076093A1 (fr)

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US20030064734A1 (en) 2003-04-03
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US6519465B2 (en) 2003-02-11
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CA2403039C (fr) 2007-06-19
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US6334059B1 (en) 2001-12-25
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