Determining device, method for determining of transmitting parameter, energy transmitting device and method for wirelessly transmitting energy

• US 8,914,080 B2
• Filed: 02/04/2010
• Issued: 12/16/2014
• Est. Priority Date: 02/04/2009
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Mobile Communications GmbH (Intel Corporation)
• Inventors: Kowalewski, Frank
• Primary Examiner(s): Karikari, Kwasi
• Application Number:
  US13/147,388
• Publication Number:
  US 20110285213A1
• Time in Patent Office: 1,776 Days
• Field of Search: 455/572, 455/573, 455/41.1, 455/522, 455/343.1
• US Class Current: 455/572
• 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 50/30 using light, e.g. lasers
• 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
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H04B 1/3883 Arrangements for mounting batteries or battery chargers
• CPC Class Codes: H04B 17/382 for resource allocation, admission control or handover
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04W 12/069 using certificates or pre-shared keys

Abstract

According to an embodiment, a determining device for determining a transmission parameter for wirelessly transmitting energy (414) from a sending device (402) to a receiving apparatus (401) is provided, comprising: an authorization checking device which is configured to carry out an authorization (403, 404, 405, 406) in order to determine whether the receiving apparatus is authorized to receive energy from the sending device, a sending/receiving apparatus which is configured to send and receive messages (409, 410, 411) during a message exchange with the receiving apparatus in order to determine the transmission parameter (413); and a parameter determining device which is configured to determine the transmission parameter (413) based on the authorization and based on the message exchange, if the receiving apparatus is authorized to receive energy from the sending device.

Claims

1. Determining device for determining a transmission parameter of a wireless energy transmission from a sending device to a receiving apparatus, the determining device comprising:

an authorization checking device which is configured to carry out an authorization in order to determine whether the receiving apparatus is authorized to receive energy from the sending device;

a sending/receiving apparatus which is configured to send and receive messages during a message exchange with the receiving apparatus in order to determine the transmission parameter; and

a parameter determining device which is configured to determine the transmission parameter based on the authorization and based on the message exchange, if the receiving apparatus is authorized to receive energy from the sending device, wherein based on the transmission of a test message between the receiving apparatus and the sending device, pulse responses of the transmission channels between the sending device and the receiving apparatus are determined.

2. The determining device according to claim 1, further comprising:

a selection device being configured to select the test message.

3. The determining device according to claim 2,

wherein the test message is selected individually for the receiving apparatus.

4. The determining device according to claim 1,

wherein the transmission parameter indicates a property of an energy signal via which the energy is transmitted from the sending device to the receiving apparatus.

5. The determining device according to claim 1,

wherein the parameter determining device is configured to determine the transmission parameter such that the energy signal fulfills a predetermined optimum criterion.

6. The determining device according to claim 5,

wherein the optimum criterion is a criterion regarding the transmission efficiency to be expected when using the energy signal.

7. The determining device according to claim 1,

wherein the authorization is carried out based on an authorization message sent out by the receiving apparatus to the authorization checking device.

8. The determining device according to claim 1,

wherein the parameter determining device is located within the sending device.

9. The determining device according to claim 1,

wherein the parameter determining device is located within the receiving apparatus.

10. The determining device according to claim 1,

wherein the receiving apparatus is a mobile electronic device.

11. The determining device according to claim 1,

wherein the determining device is configured to determine the transmission parameter if the ratio of the amount of energy radiated from the sending device to the amount of energy supplied to the receiving apparatus via the radiated energy lies above a predetermined threshold value.

12. An energy supply device, comprising:

a determining device for determining a transmission parameter of a wireless energy transmission from a sending device to a receiving apparatus, the determining device comprising;

an authorization checking device which is configured to carry out an authorization in order to determine whether the receiving apparatus is authorized to receive energy from the sending device;

a sending/receiving apparatus which is configured to send and receive messages during a message exchange with the receiving apparatus in order to determine the transmission parameter; and

a parameter determining device which is configured to determine the transmission parameter based on the authorization and based on the message exchange, if the receiving apparatus is authorized to receive energy from the sending device, wherein based on the transmission of a test message between the receiving apparatus and the sending device, pulse responses of the transmission channels between the sending device and the receiving apparatus are determined.

13. A method for determining a transmission parameter of a wireless energy transmission from a sending device to a receiving apparatus, the method comprising:

carrying out an authorization in order to determine whether the receiving apparatus is authorized to receive energy from the sending device;

sending and receiving of messages during a message exchange with the receiving apparatus in order to determine the transmission parameter; and

determining of the transmission parameter based on the authorization and based on the message exchange if the receiving apparatus is authorized to receive energy from the sending device, wherein based on the transmission of a test message between the receiving apparatus and the sending device, pulse responses of the transmission channels between the sending device and the receiving apparatus are determined.

14. An energy transmitting device for wirelessly transmitting energy to a receiving apparatus, the energy transmitting device comprising:

a sending device configured to radiate energy by means of energy sending signals;

a receiving device configured to receive a message from the receiving apparatus, from which the amount of energy which has been supplied to the receiving apparatus using the radiated energy can be determined;

a comparing device being configured to compare the amount of radiated energy with the amount of energy supplied to the receiving apparatus;

a controlling device being configured to control the sending device to radiate energy by means of other energy sending signals optimized for the energy transmission from the sending device to the receiving apparatus in accordance with estimated pulse responses of the transmission channels between the energy transmitting device and the receiving apparatus if the ratio of the amount of energy supplied to the receiving apparatus and the amount of radiated energy is below a predetermined threshold.

15. The energy transmitting device according to claim 14,

wherein the comparison device is configured to determine the ratio of the amount of energy radiated by the sending device to the amount of energy provided to the receiving apparatus using the radiated energy.

16. The energy transmitting device according to claim 15,

wherein the controlling device is configured to control a determining device in order to determine a transmission parameter for transmitting the energy if the ratio of the amount of the energy radiated by the sending device to the amount of energy provided to the receiving apparatus via the radiated energy lies above a predetermined threshold value.

17. The energy transmitting device according to claim 16,

wherein the controlling device is configured to interrupt the radiation of energy to the receiving apparatus if no transmission parameters can be determined based on which a lower ratio of the amount of energy radiated by the sending device to the amount of energy provided to the receiving apparatus via the radiated energy as the determined ratio is to be expected.

18. The energy transmitting device according to claim 17,

wherein the controlling device is configured to control the determining device at a later point of time in order to determine a transmission parameter for transmission of energy, if the radiation of energy is interrupted.

19. The energy transmitting device according to claim 14,

wherein the receiving apparatus is a mobile electronic apparatus.

20. A method for wirelessly transmitting energy from a sending device to a receiving apparatus, the method comprising:

receiving a message from the receiving apparatus, from which the amount of energy which is supplied to the receiving apparatus via energy radiated by means of energy signals can be determined;

comparing the amount of radiated energy with the amount of energy supplied to the receiving apparatus; and

controlling the sending device to radiate energy by means of other energy sending signals optimized for the energy transmission from the sending device to the receiving apparatus in accordance with estimated pulse responses of the transmission channels between the energy transmitting device and the receiving apparatus if the ratio of the amount of energy supplied to the receiving apparatus and the amount of radiated energy is below a predetermined threshold.