Electronic device

• US 20050221860A1
• Filed: 03/31/2005
• Published: 10/06/2005
• Est. Priority Date: 04/05/2004
• Status: Abandoned Application

• Current Assignee: Yokogawa Electric Corporation
• Original Assignee: Yokogawa Electric Corporation
• Inventors: Yamaji, Masato
• Application Number:
  US11/097,406
• Publication Number:
  US 20050221860A1
• Time in Patent Office: Days
• US Class Current: 455/557
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An electronic device includes a communication unit which performs transmission/reception of data through a wireless network, and an application processing unit which executes an application processing. While the application processing is not required, the application processing unit is in a sleep state or a stand-by state.

Claims

1. An electronic device, comprising:

a communication unit which performs transmission/reception of data through a wireless network; and

an application processing unit which executes an application processing,

wherein while the application processing is not required, the application processing unit is in a sleep state or a stand-by state.

2. The electronic device according to claim 1,

wherein the communication unit includes:

a wireless communication unit;

a first operation control unit which controls the wireless communication unit and transfers information to and from the application processing unit; and

a first power source which supplies electric power to the wireless communication unit and the first operation control unit.

3. The electronic device according to claim 1,

wherein the application processing unit includes:

a peripheral device;

a second operation control unit which controls the peripheral device, transfers information to and from the communication unit, and is in a sleep state or a stand-by state while the application processing is not required; and

a second power source which supplies electric power to the peripheral device and the second operation control unit.

7. The electronic device according to claim 1,

wherein the wireless communication unit executes filtering of information unnecessary for the application processing to be executed by the application processing unit.

8. The electric device according to claim 2,

wherein the first power source is a solar cell.

9. The electronic device according to claim 2,

wherein the first power source is a power source with limited capacity which is directly supplied from a connected network.

4. An electronic device, comprising:

a communication unit which performs transmission/reception of data through a wireless network; and

an application processing unit which executes an application processing,

wherein while the application processing is not required, the communication unit interrupts electric power to be supplied to the application processing unit.

5. The electronic device according to claim 4,

wherein the application processing unit includes:

a peripheral device;

a second operation control unit which controls the peripheral device, and transfers information to and from the communication unit;

a second power source which supplies electric power to the peripheral device and the second operation control; and

a switching unit which controls supply of the electric power from the second power source to the second operation control unit.

6. The electronic device according to claim 5,

wherein the communication unit includes:

a wireless communication unit;

a first operation control unit which controls the wireless communication unit, transfers information to and from the application processing unit, and controls the switching unit to interrupt the electric power to be supplied to the application processing unit while the application processing is not required; and

a first power source which supplies electric power to the wireless communication unit and the first operation control unit.

10. The electronic device according to claim 4,

wherein the wireless communication unit executes filtering of information unnecessary for the application processing to be executed by the application processing unit.

11. The electric device according to claim 6,

wherein the first power source is a solar cell.

12. The electronic device according to claim 6,

wherein the first power source is a power source with limited capacity which is directly supplied from a connected network.