# US 2014/0195803 A1 · Secure wireless charging

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- Number: US 2014/0195803 A1
- Document ID: US20140195803A1
- Status: Published application
- Kind: A1
- Application number: 13/735,316
- Filed: 2013-01-07
- Published: 2014-07-10
- Earliest claimed: 2013-01-07
- Assignees: NXP B.V.
- Applicants: NXP B.V.
- Inventors: Wihelmus H. C. Knubben; Klaas Brink; Aliaksei Vladimirovich Sedzin; Johannes Petrus Maria van Lammeren
- Web page: https://patentgrep.com/patent/US20140195803A1

## CPC

- H02J 50/10: using inductive coupling
- H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
- H04B 5/79: for data transfer in combination with power transfer
- H04L 9/32: including means for verifying the identity or authority of a user of the system {or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials}
- H04W 12/03: Protecting confidentiality, e.g. by encryption
- H04W 12/06: Authentication
- H02J 7/47: Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
- H04L 2209/80: Wireless
- H04W 12/02: Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A wireless charging apparatus and method utilizing a secure element is disclosed. Illustratively, a receiver containing a secure element securely communicates with a charging pad also equipped with a secure element. The communication can be used to establish the identity of the receiver and facilitate billing for the wireless charging. The charging pad may further communicate in a secure manner with a server to authenticate the identity and other information about the receiver before providing wireless charging. Direct communication between the receiver and server is also contemplated.

## Claims

### Claim 1

A receiver adapted to receive wireless charging from a pad comprising: a coil for receiving wireless charging energy; and a secure element for providing encrypted information to said pad.

### Claim 2 (depends on 1)

The receiver of claim 1 further comprising: a communication chip for transmitting said encrypted information to said pad.

### Claim 3

A charging pad adapted to receive encrypted information from a receiver comprising: a coil for charging said receiver; and a secure element for decrypting said encrypted information.

### Claim 4 (depends on 3)

The charging pad of claim 3 further comprising; a communication chip for transmitting information to said receiver.

### Claim 5

A method of charging a receiver comprising the steps of: providing said receiver to a charging pad, said receiver having a secure element; said secure element providing encrypted information to said charging pad.

### Claim 6 (depends on 6)

The method of claim 6 further comprising: said charging pad providing all or part of said encrypted information to a server.

### Claim 7 (depends on 6)

The method of claim 6 further comprising: said server being a cloud server.

### Claim 8 (depends on 7)

The method of claim 7 further comprising: said server authenticating said encrypted information provided to it and then providing confirmation of said authentication to said charging pad.

### Claim 9 (depends on 8)

The method of claim 8 further comprising: said charging pad commencing charging of said receiver.

### Claim 10

A method comprising the steps of: operating a cloud server to receive and decrypt information provided by a charging pad; said information being provided to a charging pad in encrypted form by a receiver.

### Claim 11 (depends on 10)

The method of claim 10 further comprising: causing said cloud server to reply to said charging pad in an encrypted manner, said reply causing said charging pad to initiate charging of said receiver.

### Claim 12

A method of charging a receiver comprising: providing a charging pad which, upon proximate presence of said receiver, engages in secure communication with said receiver; causing said charging pad to subsequently transmit said secure communication with said receiver to a server which performs an authentication procedure and which subsequently transmits the results of said authentication procedure to said charging pad; causing said charging pad to provide charging to said receiver.

### Claim 13 (depends on 12)

The method of claim 12 further comprising: receiving payment from the owner of said receiver for said charging.

### Claim 14

A method of charging a receiver comprising: providing a charging pad which is responsive to communication from a server; causing said charging pad to provide charging to said receiver after said server has received a secure communication from said receiver.

### Claim 15

A method of charging a receiver comprising the steps of: providing said receiver to a charging pad, said receiver having a secure element; said secure element providing encrypted information to a remote server; said remote server providing a charging signal to said receiver; and said receiver providing said charging signal to said charging pad.

### Claim 16 (depends on 15)

The method of claim 15 in which said server is a cloud server.

### Claim 17

A method of charging a receiver comprising the steps of: providing said receiver to a charging pad, said receiver having stored information concerning payment within it; causing said receiver to transmit a portion of said information to said pad; thereby causing said pad to charge said receiver.

### Claim 18

A method of charging a receiver comprising the step of providing a charging pad which commences charging said receiver upon receipt of encrypted information from said receiver, said information containing payment information.
