MOBILE DEVICE WITH COUPLING AREA ENHANCEMENT
First Claim
Patent Images
1. A mobile device comprising:
- a communications chip;
a mobile device coil coupled to the communications chip;
a sheet of electromagnetic interference (EMI) absorptive material;
a first coil on a first side of the sheet of EMI absorptive material; and
a second coil on a second side of the sheet of EMI absorptive material, wherein the second coil is coupled to the first coil, and the second coil is larger than the first coil;
wherein the sheet of EMI absorptive material is positioned to align the first coil with the mobile device coil.
3 Assignments
0 Petitions
Accused Products
Abstract
A coupling area enhancement device includes a small coil and a large coil on opposing sides of a sheet of electromagnetic interference (EMI) absorptive material. The coupling area enhancement device may include one or more holes and may include adhesive material and sticker covers. Placement of the coupling area enhancement device may be accomplished by sticking the small coil to a host device near a contactless antenna. The large coil may also be stuck to a battery cover.
-
Citations
20 Claims
-
1. A mobile device comprising:
-
a communications chip; a mobile device coil coupled to the communications chip; a sheet of electromagnetic interference (EMI) absorptive material; a first coil on a first side of the sheet of EMI absorptive material; and a second coil on a second side of the sheet of EMI absorptive material, wherein the second coil is coupled to the first coil, and the second coil is larger than the first coil; wherein the sheet of EMI absorptive material is positioned to align the first coil with the mobile device coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A mobile device comprising:
-
a communications chip; a mobile device coil coupled to the communications chip; a flexible substrate with electromagnetic interference (EMI) absorptive qualities; a first coil on a first side of the flexible substrate; and a second coil on the first side of the flexible substrate, wherein the second coil is electrically coupled to the first coil, and the second coil is larger than the first coil, the flexible substrate being folded such that the first and second coils appear to be on opposing sides; wherein the flexible substrate is positioned to align the first coil with the mobile device coil. - View Dependent Claims (12, 13, 14, 15)
-
-
16. A mobile device comprising:
-
a contactless device with a loop antenna; and a coupling area enhancement device having a first coil placed to couple to the loop antenna, a second coil larger than the first coil and coupled to the first coil, and a sheet of electromagnetic interference (EMI) absorptive material between the first and second coils. - View Dependent Claims (17, 18, 19, 20)
-
Specification