최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
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-0622442 (1996-03-25) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 294 인용 특허 : 0 |
Dataform readers and methods provide operation with a sequence of overlapping exposure periods for successive lines of sensor elements of an array. Also, the exposure periods for successive lines of sensor elements, or successive subsets of lines, can be independently determined. In operation of a d
Dataform readers and methods provide operation with a sequence of overlapping exposure periods for successive lines of sensor elements of an array. Also, the exposure periods for successive lines of sensor elements, or successive subsets of lines, can be independently determined. In operation of a dataform reader illumination of a target area is turned on before exposure of the first line of sensor elements, each line of sensor elements is exposed by reflected illumination in an exposure period which overlaps with the exposure period of one or more other lines, and illumination is then turned off. Using a CMOS construction, for example, the level of image signals read from one line of sensor elements is referred to a look-up table to determine an appropriate exposure period for a subsequent line or lines of elements of an array. This process is repeated to achieve exposure periods adjusted for localized exposure conditions for each successive line or subset of lines of sensor elements.
A dataform reader comprising: an array of sensor elements readable to provide image signals, including a plurality of lines of sensor elements; an array control assembly coupled to said array and arranged to initiate charge accumulation by a line of sensor elements in response to an exposure start s
A dataform reader comprising: an array of sensor elements readable to provide image signals, including a plurality of lines of sensor elements; an array control assembly coupled to said array and arranged to initiate charge accumulation by a line of sensor elements in response to an exposure start signal, and to cause image signals to be read from sensor elements of said line in response to an exposure stop signal and coupled to an output point; and an exposure control system coupled to said output point and successively responsive to the level of image signals read from selected lines of sensor elements to determine an exposure period for at least one subsequent line of sensor elements based on the level of image signals from at least one of said selected lines, and arranged to provide said exposure start and stop signals to said array control assembly to implement said exposure periods in a sequence causing the exposure period for one line of sensor elements to overlap the exposure period for at least one subsequent line of sensor elements.
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