Linear image sensor

专利名称：Linear image sensor

发明人：Nakanishi, Junji, c/o Mitsubishi Denki K. K.申请号：EP92120183.6申请日：19921126公开号：EP0574612A3公开日：19940511

专利附图：

摘要：In a linear image sensor, a charge transfer part is disposed between a one-dimensional array of photodetectors and an overflow drain and comprises a CCDincluding four or more transfer gates for each photodetector and transferring signalcharges from the photodetector in a direction of the photodetector array, transfer gates

controlling charge transfer from the photodetectors to the CCD, and shutter gatecontrolling charge transfer from the charge transfer part to the overflow drain. Eachtransfer gate is disposed between each photodetector and a prescribed one of the fouror more CCD transfer gates, and each shutter gate is disposed between the prescribedCCD transfer gate and the overflow drain. The four or more CCD transfer gates arecontrolled by four or more phase driving clocks. Therefore, during the charge transferoperation, there is a state where at least adjacent three CCD transfer gates are all closed,so that signal charges are drained from the photodetector into the overflow drainthrough the CCD transfer gate in the middle of the three CCD transfer gates withoutmixing the drained signal charges with the signal charges transferred by the CCD. That is,the charge drain operation is carried out during the charge transfer operation in thecharge transfer part, whereby a timing for opening the shutter gate can be set at anarbitrary time in the charge read cycle.

申请人：MITSUBISHI DENKI KABUSHIKI KAISHA

地址：2-2-3, Marunouchi Chiyoda-ku Tokyo JP

国籍：JP

代理机构：KUHNEN, WACKER & PARTNER

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