Processing

Please wait...

Settings

Settings

1. WO2000041402 - A SIGNAL COLLECTION SYSTEM

Publication Number WO/2000/041402
Publication Date 13.07.2000
International Application No. PCT/US1999/029463
International Filing Date 13.12.1999
Chapter 2 Demand Filed 08.08.2000
IPC
G01S 5/02 2010.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
G01S 5/06 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
06Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
H04W 64/00 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
64Locating users or terminals for network management purposes, e.g. mobility management
G01S 1/02 2010.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
1Beacons 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
02using radio waves
G01S 19/03 2010.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
19Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS , GLONASS or GALILEO
03Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
H04W 4/22 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
22Emergency connection handling
CPC
G01S 1/026
GPHYSICS
01MEASURING; TESTING
SRADIO 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
1Beacons 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
02using radio waves
022Means for monitoring or calibrating
026of associated receivers
G01S 2205/008
GPHYSICS
01MEASURING; TESTING
SRADIO 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
2205Indexing scheme associated with group G01S5/00, relating to position-fixing
001Transmission of position information to remote stations
008using a mobile telephone network
G01S 5/02
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
G01S 5/021
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
0205Details
021Calibration, monitoring or correction
G01S 5/06
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
06Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
H04W 4/90
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
90Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
Applicants
  • TRUEPOSITION, INC. [US/US]; 780 Fifth Avenue King of Prussia, PA 19406, US
Inventors
  • STILP, Louis, A.; US
  • SHEENAN, Joseph, W.; US
  • HARRIS, Tim, J.; US
  • BULL, Jeffrey, F.; US
  • ANDERSON, Robert, J.; US
Agents
  • NORRIS, Norman, L. ; Woodcock Washburn Kurtz Mackiewicz & Norris LLP 46th floor One Liberty Place Philadelphia, PA 19103, US
Priority Data
09/227,76408.01.1999US
09/228,36211.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A SIGNAL COLLECTION SYSTEM
(FR) ARCHITECTURE D'UN DISPOSITIF DE COLLECTE DE SIGNAUX DESTINE A UN SYSTEME DE LOCALISATION DE TELEPHONE SANS FIL
Abstract
(EN)
The (SCS) performs wideband energy detection and reporting at the front end of the SCS receiver. The SCS include a protocol for efficiently setting levels for wideband energy detection, DSP sharing within an SCS, and recursive location processing using progressively greater bandwidth from temporarily stored wideband data. The SCS includes antennas (10-1), a wideband receiver, a DSP for wideband energy detection, a memory for temporarily storing digital samples of received signals, a digital drop receiver, demodulation and normalization processors, and a communications processor. The wideband energy detection and the demodulation and normalization processors are implemented with DSP's that detect energy in a particular band, demodulate selected signals, and extract signals of interest for forwarding. The wideband energy detection unit determines the presence of a transmitted signal in the control channels monitored by the SCS. The wideband energy detection involves forming a map of the channel spectrum.
(FR)
L'invention concerne un dispositif de collecte de signaux (SCS) utile dans un système de localisation de téléphone sans fil. Ce dispositif exécute une détection d'énergie de bande large et envoie le résultat de cette détection à l'étage d'entrée du récepteur du dispositif SCS. D'autres aspects de ce dispositif comprennent un protocole d'établissement efficace de niveaux de détection d'énergie de bande large, le partage du traitement de signaux numériques avec un dispositif SCS, ainsi qu'un traitement de localisation récursif mettant en oeuvre une largeur de bande progressivement plus grande, à partir de données de bande large temporairement stockées. Les dispositifs SCS comprennent des antennes, un récepteur de bande large, une unité de traitement de signaux numériques destinée à la détection d'énergie de large bande, une mémoire de stockage temporaire d'échantillons numériques de signaux reçus, un récepteur d'extraction numérique, des processeurs de démodulation et normalisation, et un processeur de télécommunications. La détection d'énergie de large bande et les processeurs de démodulation et normalisation sont mis en oeuvre avec l'unité de traitement de signaux numériques, laquelle détecte l'énergie dans une bande en particulier, démodule les signaux choisis et extrait des signaux d'intérêts aux fins d'acheminement de ceux-ci. L'unité de détection d'énergie de large bande détermine la présence d'un signal émis dans les voies de commande surveillées par le dispositif de collecte de signaux. La détection d'énergie de large bande consiste à former une carte du spectre du canal, et à utiliser cette carte pour déterminer quand des signaux doivent être démodulés dans les canaux choisis.
Also published as
Latest bibliographic data on file with the International Bureau