Invention Grant
US08302867B2 Symbol reading device, symbol reading method and program recording medium to control focus based on size of captured symbol
有权
符号读取装置，符号读取方法和程序记录介质，以基于捕获的符号的大小来控制焦点
- Patent Title: Symbol reading device, symbol reading method and program recording medium to control focus based on size of captured symbol
- Patent Title (中): 符号读取装置，符号读取方法和程序记录介质，以基于捕获的符号的大小来控制焦点
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Application No.: US12710526Application Date: 2010-02-23
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Publication No.: US08302867B2Publication Date: 2012-11-06
- Inventor: Shinji Nakata
- Applicant: Shinji Nakata
- Applicant Address: JP Tokyo
- Assignee: Casio Computer Co., Ltd.
- Current Assignee: Casio Computer Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz, Goodman & Chick, PC
- Priority: JP2009-047709 20090302
- Main IPC: G06K7/10
- IPC: G06K7/10
Abstract:
Disclosed is a symbol reading device including: an imaging section to capture a symbol and generate an image; a detecting section to detect a size of the symbol; a judging section to judge large or small by comparing the size of the symbol to a pre-set value; a focus movement controlling section to move a focus position of the imaging section to a predetermined position of a farther side when the size of the symbol is smaller than the pre-set value as a result of the judgment, and to move a focus position of the imaging section to a predetermined position of a closer side when the size of the symbol is larger than the pre-set value as a result of the judgment; and an analyzing section to analyze symbol data corresponding to the symbol at a focus position moved by the focus movement controlling section.
Public/Granted literature
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