Wireless communication system

• US 7,062,275 B2
• Filed: 04/15/2004
• Issued: 06/13/2006
• Est. Priority Date: 04/24/2001
• Status: Expired due to Term

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Shiraga, Kazuhiro
• Primary Examiner(s): Feild, Joseph
• Assistant Examiner(s): Nguyen, Huy D.
• Application Number:
  US10/825,499
• Publication Number:
  US 20040209627A1
• Time in Patent Office: 789 Days
• Field of Search: 455/450, 455/456.1, 455/456.3, 455/456.6, 455/62, 455/457, 455/296, 455/63.1, 455/114.2
• US Class Current: 455/450
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 1/72457 according to geographic location
• CPC Class Codes: H04M 2250/10 including a GPS signal receiver
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services

Abstract

To provide a wireless communication system and a wireless communication method including: a first terminal apparatus comprising a computer main body and a second terminal apparatus comprising a displaying section, wherein the two terminal apparatuses perform wireless communication with each other without communication crossing. A management center obtains the positional information of a first terminal apparatus, and then records the positional information. The management center determines a communication channel free from communication crossing, depending on the positional information. The communication channel determined by the management center is transmitted to the first terminal apparatus. The first terminal apparatus and a second terminal apparatus perform wireless communication with each other through the received communication channel.

Claims

1. A wireless communication system comprising a first terminal apparatus and a second terminal apparatus which is placed near said first terminal apparatus, wherein said first terminal apparatus comprises:

a position detecting section for detecting positional information of said first terminal apparatus;

a first wireless communication section for transmitting said position information to an information management system outside said wireless communication system, and receiving a first communication channel specifying information which is decided on basis of said position information of said first terminal apparatus and a data base recording a position information of other terminal apparatus in said information management system, and which assigns communication channel between said first terminal apparatus and said second terminal apparatus not so as to occur communication crossing;

a computer for receiving said first communication channel specifying information from said first wireless communication section, and generating image information; and

a second wireless communication section for receiving said first communication channel specifying information and said image information from said computer, and transmitting said image information to a third wireless communication section of said second terminal apparatus through a first communication channel defined by said first communication channel specifying information; and

wherein

said second terminal apparatus comprises;

said third wireless communication section for receiving said image information; and

a displaying section for displaying said image information.

2. A method for controlling a wireless communication system comprising a first terminal apparatus and a second terminal apparatus which is placed near said first terminal apparatus, said method comprising:

position detecting step in which said first terminal apparatus detects a positional information of said first terminal apparatus;

position information transmitting step in which the detected position information is transmitted to an information management system outside said wireless communication system;

communication channel information receiving step for receiving a first communication channel specifying information which is decided on basis of said position is information of said first terminal apparatus and a data base recording a position information of other terminal apparatus in said information management system, and which assigns communication channel between said first terminal apparatus and said second terminal apparatus not so as to occur communication crossing;

image information generating step in which said first terminal apparatus generates image information;

wireless communication step in which said first terminal apparatus transmits said image information to said second terminal apparatus through a first communication channel defined by said first communication channel specifying information;

wireless communication step in which said second terminal apparatus receives said image information; and

displaying step in which said second terminal apparatus displays said image information.