Receiving device, display device, power supply system, display system, and receiving method

• US 20040245473A1
• Filed: 03/05/2004
• Published: 12/09/2004
• Est. Priority Date: 09/12/2002
• Status: Abandoned Application

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Takayama, Hisanobu, Mikami, Izumi
• Application Number:
  US10/488,092
• Publication Number:
  US 20040245473A1
• Time in Patent Office: Days
• US Class Current: 250/370.01
• CPC Class Codes: H02J 50/23 characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
• CPC Class Codes: H02J 50/27 characterised by the type of receiving antennas, e.g. rectennas
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

Abstract

Application of power transmitting technique by a microwave is disclosed. A multiplicity of electric power receiving patch devices (3000) is stuck on an electric power receiving vest (2200). The electric power receiving patch device (3000) converts the microwave transmitted from a base station (100) directly into an electric current, and supplies the electric current converted to a portable information terminal (1100). Since the portable information terminal (1100) operates using electric power transmitted by radio, the portable information terminal (1100) does not require a battery and a charger.

Claims

1. An electric power receiving device comprising:

an electric power receiving unit for receiving a microwave;

a microwave converting unit for converting the microwave received by the above electric power receiving unit into an electric current; and

a connecting unit connected to other equipment, for supplying the electric current converted by the above microwave converting unit to the other equipment connected.

2. The electric power receiving device as described in claim 1, wherein the above connecting unit is connected mutually detachable and the above electric power receiving device is arranged in an array.

3. The electric power receiving device as described in claim 1, further comprising a transmitting unit for transmitting information using the electric current converted by the above microwave converting unit.

4. The electric power receiving device as described in claim 1, further comprising:

a storing unit for storing identification information; and

an electric current converting unit for converting the identification information stored in the above storing unit into a microwave using the electric current converted by the above microwave converting unit,

wherein the above transmitting unit transmits the microwave converted by the above electric current converting unit using the electric current converted by the above microwave converting unit.

5. A display device comprising:

an electric power receiving unit for receiving a microwave;

a microwave converting unit for converting the microwave received by the above electric power receiving unit into an electric current;

a light emitting diode for emitting light using the electric current; and

a display unit for making the above light emitting diode emit light using the electric current converted by the above microwave converting unit.

6. The display device as described in claim 5, further comprising a frequency filter for allowing a passage of the microwave at a determined frequency in microwaves received by the above electric power receiving unit,

wherein the above microwave converting unit converts the microwave passed through the above frequency filter into an electric current.

7. The display device as described in claim 5, comprising:

a plurality of frequency filters; and

a plurality of light emitting diodes for emitting light in various colors,

wherein each frequency filter in the above plurality of frequency filters allows a passage of a microwave at a determined frequency set for each frequency filter in the microwaves received by the above electric power receiving unit,

wherein the above microwave converting unit converts the microwave passed through each frequency filter in the above plurality of frequency filters into an electric current,

wherein the above display unit makes a light emitting diode corresponding to a frequency of the microwave passed through the above each frequency filter in the above plurality of light emitting diodes emit light using the electric current converted by the above microwave converting unit.

8. A receiving antenna comprising:

a solar battery cell for acquiring solar light from energy input; and

a microwave receiving antenna for acquiring a microwave from the energy input.

9. An electric power receiving device comprising:

a receiving antenna for acquiring a microwave and solar light;

an electric power receiving unit for receiving the microwave acquired by the above receiving antenna;

a light receiving unit for receiving the solar light acquired by the above receiving antenna;

a microwave converting unit for converting the microwave received by the above electric power receiving unit into an electric current; and

a solar light converting unit for converting the solar light received by the above light receiving unit into an electric current.

10. An electric power supply system comprising:

an electric power transmitting device including an energy converting unit for converting energy into a microwave and an electric power transmitting unit for transmitting the microwave converted by the above energy converting unit; and

an electric power receiving device including an electric power receiving unit for receiving the microwave transmitted by the above electric power transmitting unit, a microwave converting unit for converting the microwave received by the above electric power receiving unit into an electric current, and a connecting unit connected to other equipment, for supplying the electric current converted by the above microwave converting unit to the other equipment connected.

11. A display system comprising:

an electric power transmitting device including a display control unit for controlling a request for outputting a microwave, an energy converting unit for converting energy into a microwave based on the request for outputting the microwave controlled by the above display control unit, and an electric power transmitting unit for transmitting the microwave converted by the above energy converting unit; and

a display device including an electric power receiving unit for receiving the microwave transmitted by the above electric power transmitting unit, a microwave converting unit for converting the microwave received by the above electric power receiving unit into an electric current, a light emitting diode for emitting light using the electric current, and a display unit for making the above light emitting diode emit light using the electric current converted by the above microwave converting unit.

12. An electric power supply system comprising:

an electric power transmitting device including an energy converting unit for converting energy into a microwave, and an electric power transmitting unit for transmitting the microwave converted by the above energy converting unit; and

an electric power receiving device including a receiving patch antenna for acquiring the microwave transmitted by the above electric power transmitting unit and solar light which is natural light, an electric power receiving unit for receiving the microwave acquired by the above receiving patch antenna, a light receiving unit for receiving the solar light acquired by the receiving patch antenna, a microwave converting unit for converting the microwave received by the electric power receiving unit into an electric current, and a solar light converting unit for converting the solar light received by the light receiving unit into an electric current.

13. An electric power receiving method comprising:

receiving a microwave;

converting the above microwave received into an electric current; and

by being connected to other equipment, supplying the electric current converted by the above microwave converting unit to the other equipment connected.