Wireless bidirectional communications between a mobile device and associated secure element using inaudible sound waves

摘要

In some embodiments, a system includes a mobile communication device and a secure element physically coupled to the mobile communication device. The mobile communication device includes a first wireless transceiver, first processor, first memory, first speaker, first microphone, and first Audio To Digital conversion (ADC). The secure element includes a second wireless transceiver, second processor, second memory, second speaker, second microphone, a second Audio To Digital converter (ADC), and a second Digital to Audio converter (DAC). The mobile communication device is configured to transmit data via the first speaker to the secure element microphone using inaudible sound waves. The secure element is configured to transmit data wirelessly via the second speaker to the mobile communication device using inaudible sound waves.

主权项

1. A system, comprising a mobile communication device and a secure element physically coupled to the mobile communication device, wherein:
the mobile communication device comprises a first wireless transceiver, first processor, and first memory, first speaker, first microphone, and first audio to digital converter; the secure element comprises a second wireless transceiver, second processor, second memory, second microphone, second speaker, second audio to digital converter; and a second digital to audio converter a second communication channel in which data is transmitted wirelessly between the secure element and the mobile communication device using inaudible sound waves.