POWER SUPPLY DEVICE, COMMUNICATION TERMINAL DEVICE, AND NON-CONTACT POWER TRANSMISSION METHOD

• US 20160182126A1
• Filed: 02/26/2016
• Published: 06/23/2016
• Est. Priority Date: 07/09/2010
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Mobile Communications Incorporated (Sony Group Corp.)
• Inventors: SUZUKI, Katsuya, Suzuki, Kuniharu
• Granted Patent: US 9,912,380 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 2310/22 The load being a portable electronic device
• CPC Class Codes: H02J 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 52/281 taking into account user or data type priority

Abstract

A power supply apparatus including a near-field wireless communication unit that wirelessly communicates with a plurality of communication terminals, a power transmission unit that sets a plurality of resonance frequencies to transfer power in a non-contact manner to each of the plurality of communication terminals, and a control unit that determines a priority level of each of the communication terminals based on identification information received from the communication terminals and determines an amount of power transmitted at each of the resonance frequencies based on the determined priority levels.

Claims

1. A power supply apparatus comprising:

a near-field wireless communication unit configured to wirelessly communicate with a plurality of communication terminals;

a power transmission unit configured to set a plurality of resonance frequencies to transfer power in a non-contact manner to each of the plurality of communication terminals; and

a control unit configured to determine a priority level of each of the communication terminals based on identification information received via the near-field wireless communication unit, and determine an amount of power transmitted at each of the resonance frequencies based on the determined priority levels.