| US 7,600,688 B2 | ||
| System surface for decoding coded data | ||
| Paul Lapstun, Balmain (Australia); and Kia Silverbrook, Balmain (Australia) | ||
| Assigned to Silverbrook Research Pty Ltd, Balmain, New South Wales (Australia) | ||
| Filed on Jun. 23, 2008, as Appl. No. 12/144,593. | ||
| Application 12/144593 is a division of application No. 11/084796, filed on Mar. 21, 2005, granted, now 7,540,429. | ||
| Claims priority of application No. 2004901796 (AU), filed on Apr. 02, 2004. | ||
| Prior Publication US 2008/0283610 A1, Nov. 20, 2008 | ||
| Int. Cl. G06F 7/10 (2006.01) | ||
| U.S. Cl. 235—462.28 [235/439; 235/454] | 10 Claims |
| 1. A system for decoding coded data provided on or in a surface, the coded data including:
at least one data portion arranged on or in the surface; and, alignment data at least partially indicative of at least one
clock indicator;
the system including:
a sensor which senses data provided in a sensing region, the sensor sensing:
at least part of the alignment data; and,
at least part of the at least one data portion; a decoder for:
determining, using the sensed alignment data part, the clock indicator;
updating, using the clock indicator, a phase-locked loop (PLL);
determining, using the PLL, a relative position between the sensing region and the at least one sensed data portion part;
and,
at least partially decoding, using the relative position, the at least one data portion part.
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