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Patent Searching and Data


Title:
PRIVATE CORDLESS SPEECH SYSTEM
Document Type and Number:
Japanese Patent JP2003102044
Kind Code:
A
Abstract:

To provide a cordless speech system capable of conforming the current position of each mobile wireless device independently of presence of the communication state of each mobile wireless device.

In the cordless speech system in which a plurality of antennas 17 connected to a stationary wireless device 15 are distributed to predetermined positions and which makes communications with a mobile wireless device 16 resident in a communication area with at least one antenna 17, the system detects distance information between the mobile wireless device 16 carried by a person in charge 12 and a plurality of the antennas in the vicinity of the mobile wireless device 16, outputs the positional information of the mobile wireless device 16 on the basis of a plurality of the distance information items, and displays the positional information on a screen of a personal computer so as to recognize the current position of the person in a change 12 on the screen when the person moves.


Inventors:
KATSUKI TAKAO
Application Number:
JP2001293566A
Publication Date:
April 04, 2003
Filing Date:
September 26, 2001
Export Citation:
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Assignee:
TOSHIBA ENGINEERING CO
International Classes:
G01S5/14; H04M3/42; H04Q3/62; H04W4/02; H04W4/04; H04W4/08; H04W64/00; H04W84/10; (IPC1-7): H04Q7/20; H04M3/42; H04Q3/62; H04Q7/34
Attorney, Agent or Firm:
Suyama Saichi