Information Communication Terminal Having Wireless Communication Function

• US 20090086697A1
• Filed: 09/25/2008
• Published: 04/02/2009
• Est. Priority Date: 09/28/2007
• Status: Abandoned Application

• Current Assignee: ROHM Co., Ltd.
• Original Assignee: ROHM Co., Ltd.
• Inventors: Okada, Koki
• Application Number:
  US12/237,561
• Publication Number:
  US 20090086697A1
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A terminal includes a communication unit. The communication unit determines which one of an AP mode and an ST mode is set as an operating mode of the terminal. In the ST mode, the communication unit accepts a received frame, and then outputs the accepted frame to a host system. In the AP mode, the communication unit transmits the received frame as it is to a wireless network, that is, relays the frame.

Claims

1. An information communication terminal for carrying out communications on a wireless network, comprising:

a communication unit carrying out communications with an external apparatus using a frame on said wireless network; and

an information processing unit performing information processing using said frame received by said communication unit, wherein;

said communication unit includes a mode determination portion determining which one of a first mode and a second mode is set as an operating mode of said information communication terminal;

when said mode determination portion determines that said operating mode is set at said first mode, said communication unit outputs said received frame to said information processing unit; and

when said mode determination portion determines that said operating mode is set at said second mode, said communication unit transmits said received frame through said wireless network.

2. The information communication terminal according to claim 1, further comprising:

a power supply unit supplying electric power to each circuit of said information communication terminal; and

a charge state determination unit determining whether said power supply unit is in a charge state, wherein

said operating mode is set at one of said first mode and said second mode in accordance with a result of the determination by said charge state determination unit.

3. The information communication terminal according to claim 2, wherein when said charge state determination unit determines that said power supply unit is in said charge state, said operating mode is set at said second mode.

4. The information communication terminal according to claim 2, wherein:

said power supply unit becomes charged with electric power supplied from a power feed line connected to said information communication terminal;

said information processing unit includes an external communication portion transmitting said received frame to an external through said power feed line; and

when said charge state determination unit determines that said power supply unit is in said charge state and the information communication terminal is instructed to carry out communications with said external, said operating mode is set at said first mode.

5. The information communication terminal according to claim 2, wherein

when said charge state determination unit determines that said power supply unit is in said charge state and the information communication terminal is instructed to allow said information processing unit to execute a predetermined application, said operating mode is set at said first mode.

6. The information communication terminal according to claim 1, wherein:

said communication unit includes a program storage portion having a predetermined storage area in which a program received from said information processing unit is stored in an overwriting manner, and operates in accordance with the program stored in said predetermined storage area;

when said operating mode is set at said first mode, said information processing unit outputs to said communication unit a first program for allowing said communication unit to serve as said first mode; and

when said operating mode is set at said second mode, said information processing unit outputs to said communication unit a second program for allowing said communication unit to serve as said second mode.

7. The information communication terminal according to claim 1, wherein

said external apparatus is another said information communication terminal.

8. A wireless communication device installed in an information communication terminal for carrying out communications on a wireless network, comprising:

a communication unit carrying out communications with an external apparatus using a frame on said wireless network; and

an information processing unit performing information processing using said frame received by said communication unit, wherein;

said communication unit includes a mode determination portion determining which one of a first mode and a second mode is set as an operating mode of said information communication terminal;

when said mode determination portion determines that said operating mode is set at said first mode, said communication unit outputs said received frame to said information processing unit; and

when said mode determination portion determines that said operating mode is set at said second mode, said communication unit transmits said received frame through said wireless network.

9. A wireless communication network comprising a plurality of information communication terminals carrying out mutual wireless communications with one another, wherein

a first information communication terminal among said plurality of information communication terminals includes:

a communication unit carrying out wireless communications with a second information communication terminal among said plurality of information communication terminals using a frame; and

an information processing unit performing information processing using said frame received by said communication unit,

said communication unit includes a mode determination portion determining which one of a first mode and a second mode is set as an operating mode of said first information communication terminal,

when said mode determination portion determines that said operating mode is set at said first mode, said communication unit outputs said received frame to said information processing unit, and

when said mode determination portion determines that said operating mode is set at said second mode, said communication unit transmits said received frame by said wireless communications.