Title:
測位システム
Document Type and Number:
Japanese Patent JP4254741
Kind Code:
B2
Abstract:
A positioning system, wherein the communication base station has: signal transmitting means for transmitting a base station timing signal and a communication signal; the terminal has: standard timing signal correcting means; total delay information generating means for generating total delay information; and basic information transmitting means for transmitting basic information including the current position information and the total delay information to the information supply device and the like; and the information supply device has: base station position information storage means; basic information receiving means for receiving the basic; distance information generating means for generating distance information indicating a distance between a current position of the terminal and a position of the communication base station ; propagation delay information generating means for generating propagation delay; device peculiar delay information generating means for generating device peculiar delay information indicating a delay other than the propagation delay time; and the like.
Inventors:
Seiichi Taniguchi
Application Number:
JP2005129080A
Publication Date:
April 15, 2009
Filing Date:
April 27, 2005
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H04W64/00; G01C21/00; G01S19/46; H04W56/00
Domestic Patent References:
| JP2005020216A | ||||
| JP2002214320A | ||||
| JP2004032124A | ||||
| JP2004235827A | ||||
| JP2002031675A | ||||
| JP2002058058A |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Kazuhiko Miyasaka
Osamu Suzawa
Kazuhiko Miyasaka
Osamu Suzawa