Exchange coupled amorphous ribbons for telephonic devices
View Patent ↗Dynamic magnetic stripe communications devices may include a coil. An exchange coupled amorphous material may be inside the coil, for example, in the form of a ribbon. The exchange coupled amorphous material may include magnetically hard crystallites embedded a soft magnetic amorphous matrix and/or at least one crystalline surface layer. A device may include a dynamic magnetic stripe communications device including one or more exchange coupled amorphous ribbons. The device may include more than one exchange coupled amorphous ribbon. Amorphous ribbons and/or layers of amorphous ribbons may be stacked (e.g., in alignment to one another) and/or offset at different heights. The ribbons may be in a single domain state without an external magnetic field, for example, an external magnetic field from a permanent magnet. The device may not include a permanent magnet.
1. A mobile telephonic device, comprising:
an exchange coupled amorphous material; and
a dynamic magnetic communications device operable to serially communicate magnetic stripe data to a magnetic stripe reader.
2. The mobile telephonic device of claim 1 , further comprising a display.
3. The mobile telephonic device of claim 1 , further comprising a button.
4. The mobile telephonic device of claim 1 , further comprising a light emitting diode.
5. The mobile telephonic device of claim 1 , wherein the exchange coupled amorphous material includes magnetically hard crystallites embedded in a soft magnetic amorphous matrix.
6. The mobile telephonic device of claim 1 , wherein the exchange coupled amorphous material includes at least one crystalline surface layer.
7. The mobile telephonic device of claim 1 , wherein the exchange coupled amorphous material includes a first exchange coupled ribbon and a second exchange coupled ribbon.
8. The mobile telephonic device of claim 1 , wherein the exchange coupled amorphous material is a soft magnetic material.
9. The mobile telephonic device of claim 1 , wherein the exchange coupled amorphous material is at least part of a material ribbon.
10. The mobile telephonic device of claim 1 , wherein the exchange coupled amorphous material is at least part of a material ribbon, and
the mobile telephonic device includes a plurality of stacked ribbons.