[특허]Method and apparatus for reading machine-readable symbols by employing a combination of multiple operators and/or proces

[미국특허] Method and apparatus for reading machine-readable symbols by employing a combination of multiple operators and/or proces 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06K-007/10
출원번호	US-0769636 (1996-12-11)
발명자 / 주소	Shimizu Mark Y. Liu Lingnan
출원인 / 주소	Intermec IP Corporation
대리인 / 주소	Seed and Berry LLP
인용정보	피인용 횟수 : 40 인용 특허 : 9

초록 ▼

A method and apparatus for reading data collection symbols initially samples and preferably stores an image of light reflected from the symbol. An initial portion of the symbol in the stored image is located and multiple reading techniques are performed based on the stored symbol image and the located portion. Several output signals are produced from the multiple reading techniques, and one of the output signals is selected as a decoded signal that represents the data encoded in the symbol. The multiple reading techniques can be multiple reading methods performed substantially simultaneously with each other (on one or more processors), a single method performed multiple times and at multiple locations within the stored symbol image, or each reading method can be broken down into constituent modules, and like modules grouped into sets.

대표청구항 ▼

[ What is claimed is:] [1.] In a symbol reading apparatus, a method of reading a data collection symbol, the symbol having a plurality of shapes and spaces between the shapes that encode data, the shapes and spaces being arranged along at least one axis, the method comprising:storing a two-dimensional image of the symbol based on light reflection from the shapes and spaces of the symbol;locating a portion of the symbol as a starting point based on the stored image;substantially simultaneously performing a plurality of symbol reading subroutines based on the stored image and the located portion;processing a plurality of output signals produced from each of the symbol reading subroutines;providing a decoded signal that represents the data encoded in the symbol based on the plurality of processed output signals;wherein substantially simultaneously performing a plurality of symbol reading subroutines includes substantially simultaneously performing a plurality of different symbol reading methods based on the stored image and the located portion, wherein each of a plurality of different symbol reading methods has a priority, andwherein processing a plurality of output signals includes selecting the output signal produced by a highest priority symbol reading method.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

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이 특허를 인용한 특허 (40) 인용/피인용 타임라인 분석

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A	생활필수품
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A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method and apparatus for reading machine-readable symbols by employing a combination of multiple operators and/or proces 원문보기