	US 7,484,101 B2
	Coded data associated with an object and encoding a distributed signature
Paul Lapstun, 393 Darling Street, Balmain 2041 (Australia); and Kia Silverbrook, 393 Darling Street, Balmain 2041 (Australia)
Filed on Sep. 28, 2007, as Appl. No. 11/863,265.
Application 11/863265 is a continuation of application No. 11/041723, filed on Jan. 25, 2005.
Claims priority of application No. 2004902623 (AU), filed on May 18, 2004.
Prior Publication US 2008/0022112 A1, Jan. 24, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/00 (2006.01); G06K 9/00 (2006.01); G06F 3/12 (2006.01); G09C 1/00 (2006.01)

U.S. Cl. 713—176 [726/26; 380/51; 380/55; 705/2; 705/75; 358/1.14; 358/1.15; 358/1.18; 283/17]

5 Claims

1. Apparatus for identifying an object, the apparatus comprising:

means for sensing coded data provided on a plurality of regions of a surface associated with the object, each region encoding a respective signature fragment, the plurality of signature fragments jointly forming a signature, the signature being an encrypted identity of said object;

means for determining, from the coded data of each sensed region, the respective signature fragment, and a signature fragment identifier associated with the signature fragment of the sensed region;

means for determining a determined signature by arranging the plurality of signature fragments according to their associated signature fragment identifiers; and

means for decrypting the determined signature to obtain an identity of said object.