公开(公告)号：US08576319B2

公开(公告)日：2013-11-05

申请号：US12929004

申请日：2010-12-22

申请人： Masatoshi Kureta ,  Masatoshi Arai ,  Takeharu Etoh ,  Konoe Etoh ,  Toshiaki Akino

发明人： Masatoshi Kureta ,  Masatoshi Arai ,  Takeharu Etoh ,  Konoe Etoh ,  Toshiaki Akino

IPC分类号： H04N3/14 ,  H04N5/335 ,  H04N9/04

CPC分类号： H04N5/335 ,  H01L27/14806 ,  H04N5/3592 ,  H04N5/37213 ,  H04N5/3728

摘要： An image sensor and an image sensing method can obtain image signals with a high S/N ratio in a high-speed image pickup operation. Signal charges are input to input transfer stage 31 of CCD memory 30. Final transfer stage 32 is formed so as to be connected to the input transfer stage 31 and able to transfer signal charges to the input transfer stage 31. In an accumulation mode, read gate 42 and drain gate 40 are not turned on and the next transfer operation of the CCD memory 30 is conducted. The accumulated signal charges are transferred on a stage by stage basis and the signal charges obtained at the first image pickup timing are transferred again straightly to the input transfer stage 31. In this state, the signal charges obtained newly at photoelectric conversion section 20 at the next image pickup timing are injected into the input transfer stage 31 by way of input gate 21. As a result of this operation, the signal charges obtained at the last image pickup timing are added to the signal charges accumulated in the input transfer stage 31 so that integrated signal charges obtained by adding the two sets of signal charges are accumulated in the input transfer stage 31.

摘要翻译： 图像传感器和图像感测方法可以在高速图像拾取操作中获得具有高S / N比的图像信号。 信号电荷被输入到CCD存储器30的输入传送级31.最终传送级32被形成为连接到输入传送级31并且能够将信号电荷传送到输入传送级31.在累加模式下，读取 门42和漏极门40不导通，并且进行CCD存储器30的下一个传送操作。 累积的信号电荷逐级传送，并且在第一摄像定时获得的信号电荷被直接传送到输入传送级31.在这种状态下，在光电转换部20新获得的信号电荷 下一个图像拾取定时通过输入门21被注入到输入传送级31.作为该操作的结果，在最后图像拾取定时获得的信号电荷被加到累积在输入传送级31中的信号电荷 通过添加两组信号电荷而获得的积分信号电荷被积累在输入传送级31中。

公开(公告)号：US20110157448A1

公开(公告)日：2011-06-30

申请号：US12929004

申请日：2010-12-22

申请人： Masatoshi Kureta ,  Masatoshi Arai ,  Takeharu Etoh ,  Konoe Etoh ,  Toshiaki Akino

发明人： Masatoshi Kureta ,  Masatoshi Arai ,  Takeharu Etoh ,  Konoe Etoh ,  Toshiaki Akino

IPC分类号： H04N5/335 ,  H01L27/148

CPC分类号： H04N5/335 ,  H01L27/14806 ,  H04N5/3592 ,  H04N5/37213 ,  H04N5/3728

摘要： An image sensor and an image sensing method can obtain image signals with a high S/N ratio in a high-speed image pickup operation. Signal charges are input to input transfer stage 31 of CCD memory 30. Final transfer stage 32 is formed so as to be connected to the input transfer stage 31 and able to transfer signal charges to the input transfer stage 31. In an accumulation mode, read gate 42 and drain gate 40 are not turned on and the next transfer operation of the CCD memory 30 is conducted. The accumulated signal charges are transferred on a stage by stage basis and the signal charges obtained at the first image pickup timing are transferred again straightly to the input transfer stage 31. In this state, the signal charges obtained newly at photoelectric conversion section 20 at the next image pickup timing are injected into the input transfer stage 31 by way of input gate 21. As a result of this operation, the signal charges obtained at the last image pickup timing are added to the signal charges accumulated in the input transfer stage 31 so that integrated signal charges obtained by adding the two sets of signal charges are accumulated in the input transfer stage 31.

摘要翻译： 图像传感器和图像感测方法可以在高速图像拾取操作中获得具有高S / N比的图像信号。 信号电荷被输入到CCD存储器30的输入传送级31.最终传送级32被形成为连接到输入传送级31并且能够将信号电荷传送到输入传送级31.在累加模式下，读取 门42和漏极门40不导通，并且进行CCD存储器30的下一个传送操作。 累积的信号电荷逐级传送，并且在第一摄像定时获得的信号电荷被直接传送到输入传送级31.在这种状态下，在光电转换部20新获得的信号电荷 下一个图像拾取定时通过输入门21被注入到输入传送级31.作为该操作的结果，在最后图像拾取定时获得的信号电荷被加到累积在输入传送级31中的信号电荷 通过添加两组信号电荷而获得的积分信号电荷被积累在输入传送级31中。