RADIO DATA TRANSMISSION SYSTEM - HITACHI INT ELECTRIC INC

Title:

RADIO DATA TRANSMISSION SYSTEM

Document Type and Number:

Japanese Patent JP2002064856

Kind Code:

A

Abstract:

To provide a radio data transport system for readily responding to a wide operation area at low cost.

The system transmits a state of the position of a mobile station M from the mobile station M to a base station B via a leased radio network, and causes a display 13 of the base station B to display the position of the mobile station M. The above system comprises a public radio network constituted by a telephone terminal 3 and a mobile phone terminal 6 such that a radio network for exclusive use and a public radio network are switched to transmit a state of the position of the mobile station M from the mobile station M to the base station B, and the position is displayed on the display 13 even when the mobile station M goes outside a communication area of the base station B.

Inventors:

HIRAKI YUZO
KITAZAWA SHUJI
SHIBAHARA KOJI
ONUKI YUICHI

Application Number:

JP2000247770A

Publication Date:

February 28, 2002

Filing Date:

August 17, 2000

Export Citation:

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Assignee:

HITACHI INT ELECTRIC INC
HITACHI LTD

International Classes:

G01C21/00; G01C21/26; G08G1/123; H04B7/26; H04L12/28; H04W4/02; H04W48/18; H04W88/06; (IPC1-7): H04Q7/36; G01C21/00; G08G1/123; H04B7/26; H04L12/28; H04Q7/34

Domestic Patent References:

JPH1063980A	1998-03-06
JP2000092544A	2000-03-31

Attorney, Agent or Firm:

Kenjiro Take

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