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    • 1. 发明授权
    • Analog front-end circuit and electronic device
    • 模拟前端电路和电子设备
    • US07800789B2
    • 2010-09-21
    • US11346536
    • 2006-02-02
    • Kenji KimuraMasahiko Mizuta
    • Kenji KimuraMasahiko Mizuta
    • H04N1/04
    • H04N1/40H04N1/0083
    • An analog front-end circuit controlling an imaging device and processing an analog image signal output from the imaging device includes: an analog processing section that receives an analog image signal from the imaging device, provides the image signal with predetermined processing, and outputs the image signal; an A/D converter that performs A/D conversion with the image signal output from the analog processing section; a transmitter circuit that receives digital image data output from the A/D converter, generates a differential signal based on the digital image data, and outputs the differential signal; and a timing generator that generates a plurality of clocks including a multiphase driving clock for driving the imaging device based on a first reference clock; the transmitter circuit including a differential amplifier circuit that generates a differential signal based on the digital image data output from the A/D converter, and outputting the differential signal generated in the differential amplifier circuit.
    • 控制成像装置并处理从成像装置输出的模拟图像信号的模拟前端电路包括:模拟处理部分,其从成像装置接收模拟图像信号,为图像信号提供预定的处理,并输出图像 信号; A / D转换器,其利用从模拟处理部分输出的图像信号进行A / D转换; 接收从A / D转换器输出的数字图像数据的发送电路,根据数字图像数据生成差分信号,并输出差分信号; 以及定时发生器,其生成包括用于基于第一参考时钟驱动所述成像装置的多相驱动时钟的多个时钟; 所述发射机电路包括差分放大器电路,所述差分放大器电路基于从所述A / D转换器输出的数字图像数据产生差分信号,并输出在差分放大器电路中产生的差分信号。
    • 2. 发明申请
    • Analog front-end circuit and electronic device
    • 模拟前端电路和电子设备
    • US20060176201A1
    • 2006-08-10
    • US11346536
    • 2006-02-02
    • Kenji KimuraMasahiko Mizuta
    • Kenji KimuraMasahiko Mizuta
    • H03M1/66
    • H04N1/40H04N1/0083
    • An analog front-end circuit controlling an imaging device and processing an analog image signal output from the imaging device includes: an analog processing section that receives an analog image signal from the imaging device, provides the image signal with predetermined processing, and outputs the image signal; an A/D converter that performs A/D conversion with the image signal output from the analog processing section; a transmitter circuit that receives digital image data output from the A/D converter, generates a differential signal based on the digital image data, and outputs the differential signal; and a timing generator that generates a plurality of clocks induding a multiphase driving clock for driving the imaging device based on a first reference clock; the transmitter circuit including a differential amplifier circuit that generates a differential signal based on the digital image data output from the A/D converter, and outputting the differential signal generated in the differential amplifier circuit.
    • 控制成像装置并处理从成像装置输出的模拟图像信号的模拟前端电路包括:模拟处理部分,其从成像装置接收模拟图像信号,为图像信号提供预定的处理,并输出图像 信号; A / D转换器,其利用从模拟处理部分输出的图像信号进行A / D转换; 接收从A / D转换器输出的数字图像数据的发送电路,根据数字图像数据生成差分信号,并输出差分信号; 以及定时发生器,其产生包含用于基于第一参考时钟驱动所述成像装置的多相驱动时钟的多个时钟; 所述发射机电路包括差分放大器电路,所述差分放大器电路基于从所述A / D转换器输出的数字图像数据产生差分信号,并输出在差分放大器电路中产生的差分信号。
    • 3. 发明申请
    • Analog front-end circuit and electronic apparatus
    • 模拟前端电路和电子设备
    • US20060176525A1
    • 2006-08-10
    • US11347686
    • 2006-02-03
    • Masahiko MizutaKenji Kimura
    • Masahiko MizutaKenji Kimura
    • H04N1/04
    • H04N1/0473H04N1/1013H04N1/192H04N2201/0477H04N2201/04774
    • An analog front-end circuit that controls an imaging device and processes an analog image signal output from the imaging device comprises: an analog processor that receives an analog image signal from the imaging device, provides the image signal with predetermined processing, and outputs a resultant signal; an A/D converter that performs A/D conversion with the image signal output from the analog processor; a holding circuit that holds digital image data output from the A/D converter; a timing generator that, based on a first reference clock, generates a plurality of clocks and outputs the clocks to at least one of the analog processor and the A/D converter; and a spread spectrum modulation circuit that performs spread spectrum modulation with the first reference clock and outputs a resultant clock that has been subject to the spread spectrum modulation as a modulated clock to the holding circuit; wherein the holding circuit holds the digital image data from the A/D converter based on the modulated clock output from the spread spectrum modulation circuit.
    • 控制成像装置并处理从成像装置输出的模拟图像信号的模拟前端电路包括:模拟处理器,其从成像装置接收模拟图像信号,以预定的处理提供图像信号,并输出结果 信号; A / D转换器,利用从模拟处理器输出的图像信号进行A / D转换; 保持电路,其保持从A / D转换器输出的数字图像数据; 定时发生器,其基于第一参考时钟产生多个时钟,并且将所述时钟输出到所述模拟处理器和所述A / D转换器中的至少一个; 以及扩频调制电路,其利用所述第一参考时钟进行扩频调制,并将经过所述扩频调制的合成时钟作为调制时钟输出到所述保持电路; 其中保持电路基于从扩展频谱调制电路输出的调制时钟保持来自A / D转换器的数字图像数据。
    • 5. 发明授权
    • Analog front-end circuit and electronic instrument
    • 模拟前端电路和电子仪器
    • US07746252B2
    • 2010-06-29
    • US12072329
    • 2008-02-26
    • Masahiko Mizuta
    • Masahiko Mizuta
    • H03M1/06
    • H03M1/0607
    • An analog front-end circuit includes an analog processing circuit, an A/D converter, a target register in which a lower limit target value of an input image signal is set, and a calculation circuit. The analog processing circuit includes an offset control circuit which performs offset control based on an offset control value set in an offset control register. The calculation circuit monitors the A/D-converted value in a lower limit value output period when the A/D-converted value corresponding to a lower limit value of an input range is output from the A/D converter, and sets the offset control value that causes the A/D-converted value to become closer to the lower limit target value set in the target register in the offset control register.
    • 模拟前端电路包括模拟处理电路,A / D转换器,设置输入图像信号的下限目标值的目标寄存器和计算电路。 模拟处理电路包括基于在偏移控制寄存器中设置的偏移控制值进行偏移控制的偏移控制电路。 当从A / D转换器输出与输入范围的下限值对应的A / D转换值时,计算电路监视下限值输出期间的A / D转换值,并设定偏移控制 使得A / D转换值变得更接近于偏移控制寄存器中的目标寄存器中设置的下限目标值的值。
    • 10. 发明申请
    • Analog front-end circuit and electronic instrument
    • 模拟前端电路和电子仪器
    • US20080291506A1
    • 2008-11-27
    • US12149780
    • 2008-05-08
    • Masahiko Mizuta
    • Masahiko Mizuta
    • H04N1/40
    • H04N1/48H01L27/14623H04N1/1008H04N1/193H04N5/361H04N5/378H04N2201/0093
    • An analog front-end circuit includes an analog processing circuit, an A/D converter, a calculation circuit, and a target register in which a black level target value is set. The analog processing circuit includes a clamp circuit that performs a line clamp operation, and an offset adjustment circuit. The calculation circuit monitors an A/D-converted value of a black reference pixel after the line clamp operation in a black level monitor period after a line clamp period but before an effective pixel output period, and performs a black level error correction process by writing an offset adjustment value that causes the A/D-converted value to be set at the black level target value into the offset adjustment register.
    • 模拟前端电路包括模拟处理电路,A / D转换器,计算电路和设定黑电平目标值的目标寄存器。 模拟处理电路包括执行线路钳位操作的钳位电路和偏移调整电路。 计算电路在线路钳位期间之后但在有效像素输出期间之前的黑电平监视期间内对线路钳位动作后的黑色参考像素的A / D转换值进行监视,并通过写入进行黑电平纠错处理 将A / D转换值设定为黑电平目标值的偏移调整值输入偏移调整寄存器。