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Acoustic tags for E-waste tracking

  • US 9,111,154 B2
  • Filed: 05/21/2012
  • Issued: 08/18/2015
  • Est. Priority Date: 05/21/2012
  • Status: Expired due to Fees
First Claim
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1. A system to track an electronic component, the system comprising:

  • an acoustic tag affixed to or embedded in the electronic component, wherein the acoustic tag is configured to transmit an acoustic signal through a liquid at a time-continuous spectrum having one or more amplitude peaks at corresponding frequencies, wherein the acoustic signal comprises a unique acoustic code that is configured to provide information regarding the electronic component and a recyclability of the electronic component;

    one or more hydrophones, wherein each hydrophone is configured to detect the acoustic signal and transmit the detected acoustic signal over a wireless data network, wherein at least one of the one or more hydrophones is located in or on a floatation device; and

    a digital receiver configured to receive the acoustic signal from the wireless data network, decode the acoustic signal, and compare the decoded signal with one or more entries in a database in order to determine a source of the acoustic signal.

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