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11. 发明授权

US5164836A Visual exposure feedback apparatus for electronic imaging system 失效
标题翻译：电子成像系统的视觉曝光反馈装置
公开(公告)号：US5164836A
公开(公告)日：1992-11-17
申请号：US729532
申请日：1991-07-15
申请人： Todd A. Jackson , Y. Timothy Tsai , James E. McGarvey
发明人： Todd A. Jackson , Y. Timothy Tsai , James E. McGarvey
IPC分类号： H04N5/235 , H04N5/232 , H04N7/18
CPC分类号： H04N5/23293
摘要： An exposure feedback apparatus is disclosed that includes a comparison unit for receiving and comparing image data with a predetermined exposure level and generating a comparison signal indicative thereof, and a multiplexing unit responsive to the comparison signal for supplying the image data to a display output line when the image data is within a desired exposure range and for alternatingly supplying the image data and preselected display data to the output line when the image data is outside of a desired exposure range. In operation, the alternating supply of the image data and preselected display data to the display output line causes portions of a display unit coupled thereto to "blink" when areas of the imaged scene exceed the predetermined exposure level. Thus, the user is supplied with visual feedback that is indicative of the exposure conditions of the captured image.
摘要翻译：公开了一种曝光反馈装置，其包括：比较单元，用于接收和比较具有预定曝光水平的图像数据并产生指示其的比较信号;以及多路复用单元，用于响应于比较信号，以将图像数据提供给显示输出线，图像数据在期望的曝光范围内，并且当图像数据在期望的曝光范围之外时，将图像数据和预选的显示数据交替地提供给输出线。在操作中，当成像场景的区域超过预定曝光水平时，将图像数据和预先选择的显示数据交替地提供给显示输出线，使得与其耦合的显示单元的部分“闪烁”。因此，向用户提供指示所拍摄图像的曝光条件的视觉反馈。

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