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    • 3. 发明申请
    • PHOTO DETECTING APPARATUS
    • 照片检测装置
    • US20070262238A1
    • 2007-11-15
    • US11692709
    • 2007-03-28
    • Hajime TakashimaKuniyuki Tani
    • Hajime TakashimaKuniyuki Tani
    • H01L27/00
    • H04N5/378H04N5/3745
    • A pixel circuit includes a first detector which amplifies a voltage obtained by charging and discharging a capacitance with a photocurrent flowing through a photo detecting element and then outputs it to a first data line, and a second detector which outputs an electric charge stored in the capacitance by the photocurrent, to a second data line. The pixel circuit operates in a first operation mode where the first detector is activated, a second operation mode where the second detector is activated and an initialization mode where the photo detecting element is initialized. With a first transistor turned on, the second detector outputs an electric charge stored in the capacitance in the second operation mode, and in the initialization mode a reset voltage set in the second data line is applied to the other end of the photo detecting element to initialize the photo detecting element.
    • 像素电路包括第一检测器,其放大通过流过光检测元件的光电流对电容进行充电和放电而获得的电压,然后将其输出到第一数据线;以及第二检测器,其输出存储在电容中的电荷 通过光电流传输到第二数据线。 像素电路在其中第一检测器被激活的第一操作模式中工作,第二检测器被激活的第二操作模式和初始化光检测元件的初始化模式。 在第一晶体管导通的情况下,第二检测器在第二操作模式下输出存储在电容中的电荷,并且在初始化模式中,将设置在第二数据线中的复位电压施加到光检测元件的另一端 初始化光电检测元件。
    • 4. 发明授权
    • Photo detection device
    • 照片检测装置
    • US07916199B2
    • 2011-03-29
    • US12278141
    • 2007-01-31
    • Keiichiro KagawaJun OhtaYugo NoseAtsushi WadaHajime Takashima
    • Keiichiro KagawaJun OhtaYugo NoseAtsushi WadaHajime Takashima
    • H04N3/14H04N5/335
    • G01J1/46H04N5/353H04N5/355H04N5/3559H04N5/374H04N5/3745H04N5/37452
    • A pixel includes a photodiode, an overflow circuit, a first sensing circuit, and a second sensing circuit. The first sensing circuit charges and discharges a cathode capacitance by a photocurrent flowing through a photodiode, and amplifies an obtained voltage by a source follower amplifier so as to be outputted to a data line. The second sensing circuit charges and discharged the cathode capacitance by the photocurrent flowing through the photodiode, and outputs electric charge stored in the cathode capacitance via the data line. A pixel circuit is configured so that a first mode in which the first sensing circuit becomes active and a second mode in which the second sensing circuit becomes active can be switched. The first mode and the second mode are switched according to an amount of light received by the photodiode included in each pixel circuit. Gain is controlled according to the amount of light received, in the first mode, and the storage time is controlled in the second mode.
    • 像素包括光电二极管,溢出电路,第一感测电路和第二感测电路。 第一感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电,并且通过源极跟随器放大器放大所获得的电压,以将其输出到数据线。 第二感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电,并通过数据线输出存储在阴极电容中的电荷。 像素电路被配置为使得第一感测电路变为活动的第一模式和第二感测电路变为活动的第二模式被切换。 第一模式和第二模式根据由每个像素电路中包括的光电二极管接收的光量进行切换。 在第一模式下,根据所接收的光量来控制增益,并且在第二模式中控制存储时间。
    • 6. 发明申请
    • PHOTO DETECTION DEVICE
    • 照片检测装置
    • US20090086071A1
    • 2009-04-02
    • US12278141
    • 2007-01-31
    • Keiichiro KagawaJun OhtaYugo NoseAtsushi WadaHajime Takashima
    • Keiichiro KagawaJun OhtaYugo NoseAtsushi WadaHajime Takashima
    • H04N5/335
    • G01J1/46H04N5/353H04N5/355H04N5/3559H04N5/374H04N5/3745H04N5/37452
    • A pixel includes a photodiode, an overflow circuit, a first sensing circuit, and a second sensing circuit. The first sensing circuit charges and discharges a cathode capacitance by a photocurrent flowing through a photodiode, and amplifies an obtained voltage by a source follower amplifier so as to be outputted to a data line. The second sensing circuit charges and discharged the cathode capacitance by the photocurrent flowing through the photodiode, and outputs electric charge stored in the cathode capacitance via the data line. A pixel circuit is configured so that a first mode in which the first sensing circuit becomes active and a second mode in which the second sensing circuit becomes active can be switched. The first mode and the second mode are switched according to an amount of light received by the photodiode included in each pixel circuit. Gain is controlled according to the amount of light received, in the first mode, and the storage time is controlled in the second mode.
    • 像素包括光电二极管,溢出电路,第一感测电路和第二感测电路。 第一感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电,并且通过源极跟随器放大器放大所获得的电压,以将其输出到数据线。 第二感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电,并通过数据线输出存储在阴极电容中的电荷。 像素电路被配置为使得第一感测电路变为活动的第一模式和第二感测电路变为活动的第二模式被切换。 第一模式和第二模式根据由每个像素电路中包括的光电二极管接收的光量进行切换。 在第一模式下,根据所接收的光量来控制增益,并且在第二模式中控制存储时间。
    • 8. 发明授权
    • Photo detecting apparatus
    • 照相检测装置
    • US07391004B2
    • 2008-06-24
    • US11692709
    • 2007-03-28
    • Hajime TakashimaKuniyuki Tani
    • Hajime TakashimaKuniyuki Tani
    • H01L27/00H04N5/335
    • H04N5/378H04N5/3745
    • A pixel circuit includes a first detector which amplifies a voltage obtained by charging and discharging a capacitance with a photocurrent flowing through a photo detecting element and then outputs it to a first data line, and a second detector which outputs an electric charge stored in the capacitance by the photocurrent, to a second data line. The pixel circuit operates in a first operation mode where the first detector is activated, a second operation mode where the second detector is activated and an initialization mode where the photo detecting element is initialized. With a first transistor turned on, the second detector outputs an electric charge stored in the capacitance in the second operation mode, and in the initialization mode a reset voltage set in the second data line is applied to the other end of the photo detecting element to initialize the photo detecting element.
    • 像素电路包括第一检测器,其放大通过流过光检测元件的光电流对电容进行充电和放电而获得的电压,然后将其输出到第一数据线;以及第二检测器,其输出存储在电容中的电荷 通过光电流传输到第二数据线。 像素电路在其中第一检测器被激活的第一操作模式中工作,第二检测器被激活的第二操作模式和初始化光检测元件的初始化模式。 在第一晶体管导通的情况下,第二检测器在第二操作模式下输出存储在电容中的电荷,并且在初始化模式中,将设置在第二数据线中的复位电压施加到光检测元件的另一端 初始化光电检测元件。