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    • 4. 发明申请
    • COMPARATOR, AD CONVERTER, SOLID-STATE IMAGING DEVICE, AND CAMERA SYSTEM
    • 比较器,AD转换器,固态成像装置和摄像机系统
    • US20130100326A1
    • 2013-04-25
    • US13653008
    • 2012-10-16
    • SONY CORPORATION
    • Yosuke Ueno
    • H03K5/22H03M1/12H01L27/146H04N5/335
    • H03F3/72H03K5/2481H03M1/123H03M1/56H04N5/357H04N5/378
    • Disclosed herein is a comparator including: a first input sampling capacitance; a second input sampling capacitance; an output node; a transconductance (Gm) amplifier as a differential comparator section configured to receive a slope signal, a signal level of the slope signal changing with a slope, at one input terminal of the Gm amplifier via the first input sampling capacitance, and receive an input signal at another input terminal of the Gm amplifier via the second input sampling capacitance, and subject the slope signal and the input signal to comparing operation; and an isolator configured to hold a voltage of an output section of the Gm amplifier constant, the isolator being disposed between the output section of the Gm amplifier and the output node.
    • 本文公开了一种比较器,包括:第一输入采样电容; 第二输入采样电容; 输出节点; 作为差分比较器部分的跨导(Gm)放大器,被配置为经由所述第一输入采样电容接收所述Gm放大器的一个输入端处的倾斜信号的斜坡信号的信号电平,所述倾斜信号以斜率变化,并且接收输入信号 通过第二输入采样电容在Gm放大器的另一个输入端,并对斜率信号和输入信号进行比较操作; 以及隔离器,被配置为保持Gm放大器的输出部分的电压恒定,所述隔离器设置在Gm放大器的输出部分和输出节点之间。
    • 10. 发明授权
    • Analog-to-digital conversion device
    • 模数转换器
    • US09407846B2
    • 2016-08-02
    • US14541712
    • 2014-11-14
    • Sony Corporation
    • Yasunori TsukudaTakashi MoueYosuke Ueno
    • H04N5/378H04N5/374H03M1/08H04N5/369H03M1/12H03M1/56
    • H04N5/374H03M1/0863H03M1/123H03M1/56H04N5/3698H04N5/378
    • An analog-to-digital conversion device includes a plurality of counting period supply units that supply a period of length according to a voltage of an analog signal inputted into each counting period supply unit based on the voltage of the analog signal as a counting period, a plurality of counter circuits which are connected to a common power supply and which perform a counting operation that counts a count value in the counting period different from each other and generate a digital signal indicating the count value, and a plurality of compensation circuits which are connected to the power supply and which operate so that the greater the number of counter circuits that stop the counting operation among the plurality of counter circuits, the greater the number of the compensation circuits that operate.
    • 模数转换装置包括多个计数周期供给单元,其基于模拟信号的电压作为计数周期,根据输入到每个计数周期供给单元的模拟信号的电压提供长度的周期, 多个计数器电路,其连接到公共电源,并且执行对计数周期内的计数值进行计数的计数操作,并产生指示计数值的数字信号;以及多个补偿电路, 连接到电源并且其操作使得在多个计数器电路中停止计数操作的计数器电路的数量越多,操作的补偿电路的数量越多。