Electromagnetic coupling interface and method for managing an electromagnetic coupling capability

• US 10,284,000 B2
• Filed: 09/28/2016
• Issued: 05/07/2019
• Est. Priority Date: 09/28/2016
• Status: Active Grant

• Current Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Original Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Inventors: Pais, Martin, Winkler, David, Cunningham, Gary
• Primary Examiner(s): Ngo, Brian
• Application Number:
  US15/279,396
• Publication Number:
  US 20180090968A1
• Time in Patent Office: 951 Days
• Field of Search: 320107, 320108, 320137
• 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 50/402 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 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

The present application provides an electromagnetic coupling interface and a method for managing an electromagnetic coupling capability relative to a particular charge location with an electromagnetic coupling interface. The electromagnetic coupling interface includes a carrier substrate including two or more moveably coupled segments, the carrier substrate having at least two use positions, where in each use position the two or more moveably coupled segments have a different spatial arrangement. The electromagnetic coupling further includes two or more sets of conductors, where each set of conductors is associated with a respective one of the two or more moveably coupled segments of the carrier substrate and is associated with one or more coils in each of the at least two use positions.

Claims

1. An electromagnetic coupling interface comprising:

a carrier substrate including two or more moveably coupled segments, the carrier substrate having at least two electromagnetic coupling use positions, where in each electromagnetic coupling use position the two or more moveably coupled segments have a different spatial arrangement; and

two or more sets of conductors, where each set of conductors is associated with a respective one of the two or more moveably coupled segments of the carrier substrate and is associated with one or more coils in each of the at least two electromagnetic coupling use positions; and

wherein the carrier substrate of which the movably coupled segments are a part, folds between the at least two electromagnetic coupling use positions along one or more fold lines.

2. An electromagnetic coupling interface in accordance with claim 1 further comprising a power source for producing one or more signals that are applied to the two or more sets of conductors.

3. An electromagnetic coupling interface in accordance with claim 2, wherein each of the one or more signals are separately applied to each set of the two or more sets of conductors.

4. An electromagnetic coupling interface in accordance with claim 3, wherein each of the separately applied one or more signals are at least one of independently switchable between on and off, have a polarity which is independently controllable, or have a frequency which is independently controllable.

5. An electromagnetic coupling interface in accordance with claim 1, wherein a degree of alignment between different ones of the two or more sets of conductors changes as the carrier substrate transitions between the at least two electromagnetic coupling use positions.

6. An electromagnetic coupling interface in accordance with claim 5, wherein the degree of alignment between different ones of the two or more sets of conductors changes the amount of interaction between the fields produced by one or more signals being applied to the two or more sets of conductors.

7. An electromagnetic coupling interface in accordance with claim 1, wherein each set of conductors associated with one or more coils in each of the at least two electromagnetic coupling use positions includes at least one of the set of conductors including one or more coils in each of the at least two use positions.

8. An electromagnetic coupling interface in accordance with claim 1, wherein each set of conductors associated with one or more coils in each of the at least two electromagnetic coupling use positions includes at least one of the set of conductors including one or more coils in at least one of the at least two electromagnetic coupling use positions and including being part of one or more coils in at least another one of the at least two electromagnetic coupling use positions.

9. An electromagnetic coupling interface in accordance with claim 8, wherein the carrier substrate is a ribbon.

10. An electromagnetic coupling interface in accordance with claim 1, wherein the moveably coupled segments of the carrier substrate are coupled together via a hinged connection.

11. An electromagnetic coupling interface in accordance with claim 1, wherein at least one of the one or more fold lines is between two adjacent segments of the two or more moveably coupled segments.

12. An electromagnetic coupling interface in accordance with claim 11, wherein when the carrier substrate is folded across the at least one of the one or more fold lines, the sets of conductors associated with each of the two adjacent segments will overlap at least partially.

13. An electromagnetic coupling interface in accordance with claim 11, wherein when the carrier substrate is unfolded across the at least one of the one or more fold lines, the sets of conductors associated with each of the two adjacent segments will substantially not overlap.

14. An electromagnetic coupling interface in accordance with claim 11, wherein the set of conductors associated with one of the two adjacent segments of the carrier substrate couples to a power source through a selectable polarity switching circuit, which switches the polarity of the signal being applied to the set of conductors associated with the one of the two adjacent segments of the carrier substrate, when the carrier substrate is folded across the fold line.

15. An electromagnetic coupling interface in accordance with claim 1, wherein the one or more fold lines includes multiple fold lines;

and wherein one of the multiple fold lines is across two already folded moveably coupled segments of the carrier substrate.

16. An electromagnetic coupling interface in accordance with claim 1, which is incorporated as part of a wireless charging device.

17. A method for managing an electromagnetic coupling capability relative to a particular charge location with an electromagnetic coupling interface including a carrier substrate with multiple moveably coupled segments having at least two electromagnetic coupling use positions, wherein the carrier substrate of which the movably coupled segments are a part, folds between the at least two electromagnetic coupling use positions along one or more fold lines, where in each electromagnetic coupling use position the multiple moveably coupled segments have a different spatial arrangement, and multiple sets of conductors, where each set of conductors is respectively associated with one of the multiple moveably coupled segments, the method comprising:

detecting the present electromagnetic coupling use position of the multiple moveably coupled segments of the carrier substrate; and

applying a signal to each of the multiple sets of conductors dependent upon the present electromagnetic coupling use position which has been detected.

18. A method in accordance with claim 17 further comprising:

determining the type of device interacting with the electromagnetic coupling interface and the ability of the device to receive a charge at the particular charge location via the electromagnetic coupling interface;

identifying a preferred electromagnetic coupling use position from the at least two electromagnetic coupling use positions; and

configuring the carrier substrate and the associated multiple moveably coupled segments between the at least two electromagnetic coupling use positions into the preferred electromagnetic coupling use position;

wherein the signal applied to each of the multiple sets of conductors is dependent upon the detected configured electromagnetic coupling use position and the determined type of device and the ability of the device to receive a charge.

19. A method in accordance with claim 17, wherein detecting the present electromagnetic coupling use position includes detecting a transition between electromagnetic coupling use positions including a fold of the carrier substrate relative to at least two of the moveably coupled segments;

and wherein applying a signal to each of the multiple sets of conductors includes selectively reversing the polarity of the signal being applied to at least one of the sets of conductors.

20. A method in accordance with claim 17, wherein when the carrier substrate is folded across the at least one of the one or more fold lines, the sets of conductors associated with each of the two adjacent segments will overlap at least partially;

and wherein when the carrier substrate is unfolded across the at least one of the one or more fold lines, the sets of conductors associated with each of the two adjacent segments will substantially not overlap.