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1. WO1996004606 - FIGURE DATA TRANSMISSION SYSTEM

Publication Number WO/1996/004606
Publication Date 15.02.1996
International Application No. PCT/JP1995/001493
International Filing Date 27.07.1995
IPC
G01C 15/00 2006.01
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
15Surveying instruments or accessories not provided for in groups G01C1/-G01C13/116
G01C 21/26 2006.01
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
26specially adapted for navigation in a road network
G06F 17/30 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
30Information retrieval; Database structures therefor
G08G 1/09 2006.01
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
09Arrangements for giving variable traffic instructions
CPC
G01C 15/00
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
15Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
G01C 21/26
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in preceding groups G01C1/00-G01C19/00
26specially adapted for navigation in a road network
G06F 16/29
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
29Geographical information databases
Applicants
  • TOKYO GAS CO., LTD. [JP/JP]; 5-20, Kaigan 1-chome Minato-ku Tokyo 105, JP (AllExceptUS)
  • ISHIKAWA, Yoichi [JP/JP]; JP (UsOnly)
  • SATO, Hiroto [JP/JP]; JP (UsOnly)
  • YONEYAMA, Kiyoshi [JP/JP]; JP (UsOnly)
Inventors
  • ISHIKAWA, Yoichi; JP
  • SATO, Hiroto; JP
  • YONEYAMA, Kiyoshi; JP
Agents
  • INOUE, Seiichi; 6-1-805, Ebisu 1-chome Shibuya-ku Tokyo 150, JP
Priority Data
6/19753129.07.1994JP
6/23045031.08.1994JP
6/23045131.08.1994JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) FIGURE DATA TRANSMISSION SYSTEM
(FR) SYSTEME DE TRANSMISSION DE DONNEES GRAPHIQUES
Abstract
(EN)
A sub-station (3-1) extracts graphic data from an optical disk (19), designates a search area F and transmits the data as retrieved data (61) to a base station (1). After the base station (1) has received the retrieved data (61), it extracts graphic data (10) including a search area (69) from a data base (7), and checks the date and time of the update of the graphic data (10) and those of the retrieved data (61). When the update date and time of the retrieved data (61) are older, the graphic data (10) are transmitted to the sub-station (3-1).
(FR)
Une sous-station (3-1) extrait des données graphiques d'un disque optique (19), désigne une zone de recherche (F) et transmet les données sous forme de données extraites (61) à une station de base (1). Après que la station de base (1) ait reçu les données extraites (61), elle extrait les données graphiques (10) comprenant une zone de recherche (69) d'une base de données (7), et vérifie la date et l'heure de la mise à jour des données graphiques (10) ainsi que des données extraites (61). Lorsque la date et l'heure de la mise à jour des données extraites (61) sont plus anciennes, les données graphiques (10) sont transmises à la sous-station (3-1).
Also published as
Latest bibliographic data on file with the International Bureau