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ESD protection in a very small form factor consumer electronic product

  • US 8,634,178 B2
  • Filed: 08/27/2010
  • Issued: 01/21/2014
  • Est. Priority Date: 08/27/2010
  • Status: Active Grant
First Claim
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1. A media player, comprising:

  • a housing having an anodized aluminum surface; and

    a button assembly that includes an external feature arranged to receive a user input event, the external feature being connected to an internal switch displaced from the external feature by way of an electrically conductive arm that fits through a slit in a moisture flow inhibiting seal formed of an insulating material, wherein at least a portion of the seal is combined with a conductive dopant such that a conductive path is formed between the electrically conductive arm and a portion of the anodized surface of the housing along which a portion of a surface layer has been removed, the conductive path allowing a quantity of charge deposited at the external feature to flow directly to the portion of the anodized surface of the housing by way of the electrically conductive arm and the conductive portion of the seal, thereby bypassing the internal switch.

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