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Portable power supply device for mobile computing devices

  • US 8,234,509 B2
  • Filed: 11/18/2009
  • Issued: 07/31/2012
  • Est. Priority Date: 09/26/2008
  • Status: Active Grant
First Claim
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1. A portable power supply device for a mobile computing device, the portable power supply device comprising:

  • a retention structure to retain the mobile computing device;

    a power source; and

    an inductive signal interface to inductively signal at least power from the power source to a corresponding inductive signal interface of the mobile computing device,wherein the retention structure comprises a carriage to retain the mobile computing device in sufficient proximity to the inductive signal interface to enable an inductive link to be formed between the portable power supply device and the mobile computing device,wherein the carriage comprises a pocket structure to retain the mobile computing device, the pocket structure including an opening to receive the mobile computing device, andwherein the carriage further comprises a flap that extends from or near the opening, and wherein the flap includes one or more coils that comprise at least a portion of the inductive signal interface.

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