专利名称：Optical information reading apparatus and
related information reading method
发明人：Takeshi Matushima,Motoaki Watabe申请号：US10893879申请日：20040720公开号：US07503492B2公开日：20090317
专利附图：
摘要：A guide light indicating a rectangular reading portion, smaller than an imagingvisual field of an area sensor, is irradiated on a reading objective. A control unit, under theirradiated guide light, causes the area sensor to capture a first image. Then, the control
unit detects the position of the guide light based on captured first image data. Then, withno irradiation of the guide light, the control unit causes the area sensor to capture asecond image. The control unit then estimates an existing region of a two-dimensionalcode in the second image. The control unit selects, as a processing objective, only a codethat is completely contained in the reading portion and executes the decode processingonly for the selected code. When failed in a reading operation, the control unit expands aprocessing objective region and executes the decode processing again.
申请人：Takeshi Matushima,Motoaki Watabe
地址：Kariya JP,Aichi-ken JP
国籍：JP,JP
代理机构：Posz Law Group, PLC
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