Code symbol reading system having adaptive autofocus

Patent metadata

Field	Value
Publication number	US-9104929-B2
Application number	US-201313927398-A
Country	US
Kind code	B2
Filing date	Jun 26, 2013
Priority date	Jun 26, 2013
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

A system for reading code symbols includes an imaging subsystem that includes a focusing module and an image processor. The image processor selects an initial, predicted focal distance for the imaging subsystem's focusing module with respect to a code symbol. The focal distance for each successfully decoded code symbol is stored in memory, and a weighted average of a pre-selected number of memorized focal distances is used to calculate the next initial, predicted focal distance.

First claim

The invention claimed is:

1. A system for reading code symbols, comprising:
an imaging subsystem for capturing images within the imaging subsystem's field of view, the imaging subsystem including a focusing module; and
an image processor configured for:
selecting an initial, predicted focal distance for the imaging subsystem's focusing module;
processing an image of a code symbol captured by the imaging subsystem in order to decode the code symbol; and
storing in memory th…

Assignees

• Hand Held Prod Inc

Inventors

• Todeschini Erik

Classifications

• G06K2207/1011

  Physics · mapped topic

• G06K19/06028

  Physics · mapped topic

• G06K7/10811 Primary

  Physics · mapped topic

• G06K7/10801

  Physics · mapped topic

• G06K7/10722

  Physics · mapped topic