KEYBOARD INTEGRATED NFC ANTENNA
First Claim
Patent Images
1. A wireless communications device comprising:
- a processor, a memory, a radio, an antenna configured for communicating using near field communication, and a keyboard assembly, the keyboard assembly containing a planar sheet of metal positioned near the antenna;
wherein the sheet of metal contains multiple slots for disrupting eddy currents induced in the sheet of metal by magnetic emanations from the antenna.
1 Assignment
0 Petitions
Accused Products
Abstract
A metal baseboard with a planar shape which is placed close to a Near Field Communication (NFC) radio antenna may be configured with a number of slots in the metal. These slots may disrupt the eddy current that would otherwise be induced in the metal by magnetic emissions emanating from the NFC antenna. The reduction in eddy current that results from these slots may reduce the severe attenuation of the signal that would otherwise be caused by the metal. In general, each slot may run approximately perpendicular to the direction of the expected eddy current. This may be approximated by having many of the slots each run perpendicular to the nearest part of the antenna wiring.
15 Citations
18 Claims
-
1. A wireless communications device comprising:
-
a processor, a memory, a radio, an antenna configured for communicating using near field communication, and a keyboard assembly, the keyboard assembly containing a planar sheet of metal positioned near the antenna; wherein the sheet of metal contains multiple slots for disrupting eddy currents induced in the sheet of metal by magnetic emanations from the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A keyboard assembly comprising:
-
a plurality of keys; a circuit board coupled to the plurality of keys; a baseboard coupled to the circuit board and having a planar sheet of metal, wherein the planar sheet of metal includes multiple slots configured to disrupt eddy current induced by magnetic emanations from a nearby antenna for near field communication communications. - View Dependent Claims (11, 12, 13, 14)
-
-
15. A device comprising:
-
a planar sheet of metal containing openings shaped like slots; wherein at least half of the slots each has at least a portion configured to be perpendicular to a nearest portion of a nearby antenna for near field communication communications. - View Dependent Claims (16, 17, 18)
-
Specification