公开(公告)号：US09984318B2

公开(公告)日：2018-05-29

申请号：US14917547

申请日：2013-09-20

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Matthew D Gaubatz ,  Robert Ulichney ,  Steven J Simske

IPC: G06K19/00 ,  G06K19/06 ,  G06F3/00 ,  H04N1/32 ,  H04N1/405 ,  G11B20/14

CPC classification number: G06K19/06037 ,  G06F3/00 ,  G06K19/06103 ,  G11B20/14 ,  H04N1/32144 ,  H04N1/32256 ,  H04N1/32288 ,  H04N1/32293 ,  H04N1/32304 ,  H04N1/4051 ,  H04N1/4055

Abstract: An example method for forming a data-bearing medium in accordance with aspects of the present disclosure includes setting variables associated with the data-bearing medium, the variables comprising a bit length of a codeword, identifying a phase-invariant codeword based on the variables, and arranging rows of the data-bearing medium with the phase-invariant codewords.

公开(公告)号：US20180005342A1

公开(公告)日：2018-01-04

申请号：US15545708

申请日：2015-01-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Steven J SIMSKE ,  Rbert Ulichney ,  Matthew D Gaubatz

IPC: G06T1/00

CPC classification number: G06T1/0071 ,  G06K19/06018 ,  G06K19/06037 ,  G06T2201/0051

Abstract: An example method is described in which a processor receives a first plurality of symbols selected from a first set of symbols, translates the first plurality of symbols into a second plurality of symbols selected from an M-ary cyclic symbol set, and writes the second plurality of symbols to a surface. An additional example method is described in which a processor captures an image of at least a portion of a surface, detects a first plurality of symbols from the image, where the first plurality of symbols comprises symbols selected from an M-ary cyclic symbol set, translates the first plurality of symbols into a second plurality of symbols selected from a second set of symbols, and performs at least one task responsive to the second plurality of symbols.

公开(公告)号：US20170274693A1

公开(公告)日：2017-09-28

申请号：US15512038

申请日：2014-09-19

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Jason S Aronoff ,  Steven J Simske ,  Matthew D Gaubatz ,  Robert Ulichney

IPC: B41M3/14 ,  G06K15/02 ,  G06K15/00

CPC classification number: H04N1/0087 ,  B41M3/14 ,  B41M3/146 ,  G06K9/18 ,  G06K15/189 ,  G06K15/4095 ,  H04N1/00867 ,  H04N1/32208 ,  H04N1/32219 ,  H04N1/32256 ,  H04N1/32293 ,  H04N1/32299 ,  H04N1/32304 ,  H04N1/3232

Abstract: Example implementations relate to multiple payload pantograph. Some examples may include a first pattern generation engine to generate a first pattern. The first pattern may be a data-bearing pattern encoding a first payload. Additionally, some examples may include a second pattern generation engine to generate a second pattern, the second pattern (by itself or in combination with the first pattern) may represent a second payload. The second payload may be camouflaged by a combination of the first pattern and the second pattern. Some examples may also include a pantograph generation engine to generate a multiple payload pantograph including the first pattern and the second pattern. The multiple payload pantograph may include the first pattern in one of the pantograph background or the pantograph foreground.