Multi-use wireless power and data system

• US 9,787,364 B2
• Filed: 07/30/2015
• Issued: 10/10/2017
• Est. Priority Date: 01/20/2011
• Status: Active Grant

• Current Assignee: Triune Ip, LLC (Semtech Corporation)
• Original Assignee: Triune Ip, LLC (Semtech Corporation)
• Inventors: Moore, Kenneth E., Stingu, Petru Emanuel, Teggatz, Ross E.
• Primary Examiner(s): Kaplan, Hal
• Application Number:
  US14/814,379
• Publication Number:
  US 20150341087A1
• Time in Patent Office: 803 Days
• Field of Search: 307104
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• 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: H04B 1/40 Circuits
• CPC Class Codes: H04B 5/266 One coil at each side, e.g. with primary and secondary coils
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A wireless device is disclosed that includes an antenna system comprising at least one inductive element and two or more capacitive elements. A switching component configured to change a circuit configuration of the capacitive elements. A controller configured to transmit a signal using the antenna system and to receive a response from a first device, to determine a communications protocol associated with the first device and to change a configuration of the antenna system in response to the detected communications protocol by actuating the switching component.

Claims

1. A wireless device comprising:

an antenna system comprising at least one inductive element and two or more capacitive elements;

a switching component configured to change a circuit configuration of the capacitive elements; and

a controller configured to transmit a signal using the antenna system and to receive a response from a first device, to determine a communications protocol associated with the first device and to change a configuration of the antenna system in response to the determined communications protocol by actuating the switching component, wherein the controller is configured to transmit a first signal in accordance with a first protocol and to wait a predetermined period of time for a response, and then to transmit a second signal in accordance with a second protocol if no response is received.

2. The wireless device of claim 1 wherein the controller is configured to detect whether the first device is within proximity to the controller and to transmit the signal in response to the detection.

3. The wireless device of claim 1 wherein the controller is configured to transmit additional signals in accordance with additional protocols until a response is received.

4. A wireless device of claim 1 wherein the controller is configured to maximize a power transfer or efficiency by tuning a transmitting entity and a receiving entity to each resonate at a frequency.

5. The wireless device of claim 1 wherein the switching component comprises one or more high-bandwidth, low-loss switches, and further comprising a device configured to measure one of a voltage, a current or a power in the device, and wherein the controller is configured to actuate the switches as a function of the measured voltage, current or power in the device.

6. The wireless device of claim 1 wherein the controller is configured to transmit a signal that can generate a response in accordance with multiple different protocols.

7. A method comprising:

transmitting a signal to an antenna system comprising at least one inductive element and two or more capacitive elements;

receiving a response from a first device at a controller;

determining a communications protocol associated with the first device at the controller; and

changing a configuration of the antenna system at the controller in response to the determined communications protocol by actuating a switching component configured to change a circuit configuration of the capacitive elements;

transmitting a first signal in accordance with a first protocol from the controller;

waiting a predetermined period of time for a response; and

transmitting a second signal in accordance with a second protocol from the controller if no response is received.

8. The method of claim 7 further comprising:

detecting whether the first device is within proximity to the controller; and

transmitting the first signal in response to the detection.

9. The method claim 7 further comprising transmitting additional signals in accordance with additional protocols until a response is received.

10. The method of claim 7 further comprising maximizing a power transfer or efficiency by tuning a transmitting entity and a receiving entity to each resonate at a frequency.

11. The method of claim 7 further comprising transmitting a signal that can generate a response in accordance with multiple different protocols.

12. The method of claim 7 further comprising detecting whether the first device is within proximity to the controller.

13. The method of claim 7 further comprising:

measuring one of a voltage, a current or a power in the first device; and

actuating the switching component as a function of the measured voltage, current or power in the first device.

14. The method of claim 13 wherein the switching component comprises one or more high-bandwidth, low-loss switches.

15. The method of claim 7 further comprising:

measuring one of a voltage, a current or a power in the first device; and

actuating the switching component after measuring.

16. The method of claim 15 wherein the switching component comprises one or more high-bandwidth, low-loss switches.