DE69409645D1 - System zur positionsbestimmung von zellularen telefonen - Google Patents

System zur positionsbestimmung von zellularen telefonen

Info

Publication number
DE69409645D1
DE69409645D1 DE69409645T DE69409645T DE69409645D1 DE 69409645 D1 DE69409645 D1 DE 69409645D1 DE 69409645 T DE69409645 T DE 69409645T DE 69409645 T DE69409645 T DE 69409645T DE 69409645 D1 DE69409645 D1 DE 69409645D1
Authority
DE
Germany
Prior art keywords
cell site
site
cellular telephone
central
cellular telephones
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.)
Expired - Lifetime
Application number
DE69409645T
Other languages
English (en)
Other versions
DE69409645T2 (de
Inventor
Louis Stilp
Curtis Knight
John Webber
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22021766&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69409645(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Trueposition Inc filed Critical Trueposition Inc
Publication of DE69409645D1 publication Critical patent/DE69409645D1/de
Application granted granted Critical
Publication of DE69409645T2 publication Critical patent/DE69409645T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G01S3/00—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
    • G01S3/02—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
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • 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
    • 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
DE69409645T 1993-05-07 1994-01-19 System zur positionsbestimmung von zellularen telefonen Expired - Lifetime DE69409645T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/059,248 US5327144A (en) 1993-05-07 1993-05-07 Cellular telephone location system
PCT/US1994/000816 WO1994027160A1 (en) 1993-05-07 1994-01-19 Cellular telephone location system

Publications (2)

Publication Number Publication Date
DE69409645D1 true DE69409645D1 (de) 1998-05-20
DE69409645T2 DE69409645T2 (de) 1998-08-06

Family

ID=22021766

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69409645T Expired - Lifetime DE69409645T2 (de) 1993-05-07 1994-01-19 System zur positionsbestimmung von zellularen telefonen

Country Status (15)

Country Link
US (2) US5327144A (de)
EP (1) EP0700525B1 (de)
JP (1) JP2843951B2 (de)
KR (1) KR0153589B1 (de)
AT (1) ATE165169T1 (de)
AU (1) AU677292B2 (de)
BR (1) BR9406463A (de)
CA (1) CA2161333C (de)
DE (1) DE69409645T2 (de)
HK (1) HK1010461A1 (de)
RU (1) RU2107925C1 (de)
SG (1) SG48730A1 (de)
TW (2) TW238446B (de)
WO (1) WO1994027160A1 (de)
ZA (1) ZA941019B (de)

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RU2107925C1 (ru) 1998-03-27
BR9406463A (pt) 1996-01-30
CA2161333C (en) 1998-05-19
DE69409645T2 (de) 1998-08-06
WO1994027160A1 (en) 1994-11-24
US5608410A (en) 1997-03-04
JP2843951B2 (ja) 1999-01-06
US5327144A (en) 1994-07-05
TW238446B (de) 1995-01-11
ZA941019B (en) 1994-08-25
CA2161333A1 (en) 1994-11-24
EP0700525A1 (de) 1996-03-13
EP0700525B1 (de) 1998-04-15
TW264595B (de) 1995-12-01
ATE165169T1 (de) 1998-05-15
AU6094094A (en) 1994-12-12
EP0700525A4 (de) 1996-07-24
JPH08508381A (ja) 1996-09-03
HK1010461A1 (en) 1999-06-17
KR0153589B1 (ko) 1998-12-15
SG48730A1 (en) 1998-05-18
AU677292B2 (en) 1997-04-17

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