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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0240299 (1994-05-09) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 300 인용 특허 : 0 |
In a bar code reader, a field of view which includes a symbol to be read is imaged upon a light-responsive array such as a CCD imager device. The output of this array is transferred to a memory array to provide a bit-mapped type of binary representation of the image including the symbol. The memory
In a bar code reader, a field of view which includes a symbol to be read is imaged upon a light-responsive array such as a CCD imager device. The output of this array is transferred to a memory array to provide a bit-mapped type of binary representation of the image including the symbol. The memory is scanned (instead of the field of view itself being mechanically scanned) to recognize and decode the symbol. Because the angular orientation of the symbol is variable, this binary representation may be interpreted to determine how the memory array is to be scanned to recognize the bar code symbol. For example, the distinctive patterns of characters used in bar codes may be found by scanning the memory and the relative positions of these patterns interpreted to determine the position, size and shape of the symbol in the memory, thereby defining at what angular displacement the memory array need be addressed to traverse the rows of the bar code symbol. Or, the memory array may be simply scanned using preselected scan lines (beginning with a raster-type scan) until code recognition is obtained.
A method of reading a bar code symbol comprising the steps of: (a) optically imaging upon a light-detector array a field of view including a symbol to be read; (b) directly transferring serially only to a serial port of a memory array a binary representation of light impinging upon the light-detecto
A method of reading a bar code symbol comprising the steps of: (a) optically imaging upon a light-detector array a field of view including a symbol to be read; (b) directly transferring serially only to a serial port of a memory array a binary representation of light impinging upon the light-detector array; (c) during said transferring, scanning said binary representation in the memory array via a parallel port of said memory array to produce electrical data output to processing means; and (d) evaluating said electrical data output including finding the presence of bar code symbol information by said processing means to thereby determine orientation of the bar code symbol.
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