×

Optical jog wheel with spiral coding element

  • US 8,247,758 B2
  • Filed: 01/27/2010
  • Issued: 08/21/2012
  • Est. Priority Date: 11/01/2006
  • Status: Expired due to Fees
First Claim
Patent Images

1. A user navigational apparatus comprising:

  • a rotary dial;

    means for generating a light signal incident on a coded track;

    means for generating a spiral-shaped light image in response to the light signal incident on the coded track;

    means for illuminating an annular region adjacent to the rotary dial, wherein the annular region and the rotary dial have a common central reference point, and the annular region is disposed within the rotary dial; and

    means for detecting motion of the coded track, wherein the coded track is configured to move in response to a first user movement of the rotary dial.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×