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Keyboard layout for handheld electronic book reader device

  • US 8,413,904 B1
  • Filed: 03/29/2006
  • Issued: 04/09/2013
  • Est. Priority Date: 03/29/2006
  • Status: Expired due to Fees
First Claim
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1. A handheld electronic book device comprising:

  • a display screen adapted for displaying visible representations of content of an electronic book;

    a keyboard having keys arranged in horizontal rows and vertical columns, wherein the keyboard includes;

    a top row of horizontally aligned keys that are oriented uniformly;

    a plurality of middle rows of keys that are oriented non-uniformly; and

    a bottom row of horizontally aligned keys that are oriented uniformly;

    wherein a first plurality of the keys in the middle rows is arranged in arcs relative to a first point of reference on the device, and a second plurality of the keys in the middle rows is arranged in arcs relative to a second point of reference on the device, the second point of reference being spaced from the first point of reference on the device;

    wherein the plurality of middle rows of keys comprises at least 26 keys; and

    wherein each key of the middle rows of keys is located at a distinct intersection of one of the middle rows with one of the arcs.

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