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Non-wireless communication using sound

  • US 7,324,836 B2
  • Filed: 09/23/2003
  • Issued: 01/29/2008
  • Est. Priority Date: 09/23/2003
  • Status: Active Grant
First Claim
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1. Apparatus for use in a first device to receive digital data non-wirelessly from a second device and to transmit digital data non-wirelessly to the second device, the apparatus comprising:

  • a single jack configured to couple to either one of a headphone or a headset and to receive analog signals encoded with the digital data from the second device and to transmit analog signals encoded with digital data to the second device;

    a first conversion unit coupled to the single jack and configured to encode digital data into analog signals for transmission to the second device; and

    a second conversion unit coupled to the single jack and configured to recover the digital data from the analog signals received from the second device;

    wherein the first device is one of a mobile phone, a personal digital assistant or a smart phone and wherein the second device is one of a mobile phone, a personal digital assistant or a smart phone.

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