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    Combined AD/DA Converting Apparatus
    1.
    发明申请
    Combined AD/DA Converting Apparatus 有权
    组合式AD / DA转换装置

    公开(公告)号：US20070296622A1

    公开(公告)日：2007-12-27

    申请号：US11766687

    申请日：2007-06-21

    申请人： Yasumasa Hayakawa ,  Akira Yoshida ,  Taichiro Kawai

    发明人： Yasumasa Hayakawa ,  Akira Yoshida ,  Taichiro Kawai

    IPC分类号： H03M1/12

    CPC分类号： H03M1/02 ,  H03M1/1225 ,  H03M1/46 ,  H03M1/662

    摘要： A combined AD/DA converting apparatus carrying out AD conversion of an analog input signal to output a converted digital signal or carrying out DA conversion of a digital input signal to output a converted analog signal based on a conversion selection signal for selecting AD conversion or DA conversion comprises an input signal selection circuit configured to select one analog signal out of a plurality of analog input signals to be output based on an input selection signal; an input sample hold circuit configured to sample and hold the analog input signal output from the input signal selection circuit; a DA converter configured to convert a digital signal into an analog signal to be output; a comparator circuit configured to output a comparison signal that indicates a size relation between the analog input signal output from the input sample hold circuit and the analog signal output from the DA converter; a sequential comparison register configured to define sequentially each place of a digital signal stored in the register based on the comparison signal output from the comparison circuit; a selection circuit configured to receive the digital signal stored in the sequential comparison register, the digital input signal, and the conversion selection signal, the selection circuit being configured to output the digital signal stored in the sequential comparison register to the DA converter when the conversion selection signal indicates AD conversion, and to output the digital input signal to the DA converter when the conversion selection signal indicates DA conversion; and a controlling unit configured to output the input selection signal when the conversion selection signal indicates DA conversion.

    摘要翻译： 一种组合的AD / DA转换装置，其基于用于选择AD转换或DA的转换选择信号，对模拟输入信号进行AD转换以输出转换的数字信号或执行数字输入信号的DA转换以输出转换的模拟信号 转换器包括：输入信号选择电路，被配置为基于输入选择信号从要输出的多个模拟输入信号中选择一个模拟信号; 输入采样保持电路，被配置为对从输入信号选择电路输出的模拟输入信号进行采样和保持; DA转换器，被配置为将数字信号转换为要输出的模拟信号; 比较器电路，被配置为输出指示从输入采样保持电路输出的模拟输入信号与从DA转换器输出的模拟信号之间的尺寸关系的比较信号; 顺序比较寄存器，其被配置为基于从比较电路输出的比较信号顺序地定义存储在寄存器中的数字信号的每个位置; 选择电路，被配置为接收存储在顺序比较寄存器中的数字信号，数字输入信号和转换选择信号，所述选择电路被配置为当转换时将所述顺序比较寄存器中存储的数字信号输出到DA转换器 选择信号指示AD转换，并且当转换选择信号指示DA转换时，将数字输入信号输出到DA转换器; 以及控制单元，被配置为当所述转换选择信号指示DA转换时输出所述输入选择信号。

    Combined AD/DA converting apparatus
    2.
    发明授权
    Combined AD/DA converting apparatus 有权
    组合AD / DA转换装置

    公开(公告)号：US07477173B2

    公开(公告)日：2009-01-13

    申请号：US11766687

    申请日：2007-06-21

    申请人： Yasumasa Hayakawa ,  Akira Yoshida ,  Taichiro Kawai

    发明人： Yasumasa Hayakawa ,  Akira Yoshida ,  Taichiro Kawai

    IPC分类号： H03M1/66

    CPC分类号： H03M1/02 ,  H03M1/1225 ,  H03M1/46 ,  H03M1/662

    摘要： A combined AD/DA converting apparatus includes an input signal selection circuit configured to select one analog signal out of a plurality of analog input signals based on an input selection signal; an input sample hold circuit configured to sample and hold the analog input signal; a DA converter configured to convert a digital signal into an analog signal; a comparator circuit configured to output a comparison signal that indicates a size relation between the analog input signal and the analog signal; a sequential comparison register configured to define sequentially each place of a digital signal stored in the register based on the comparison signal; and a selection circuit configured to output the digital signal to the DA converter when the conversion selection signal indicates AD conversion, and to output the digital input signal to the DA converter when the conversion selection signal indicates DA conversion.

    摘要翻译： 组合的AD / DA转换装置包括：输入信号选择电路，被配置为基于输入选择信号从多个模拟输入信号中选择一个模拟信号; 输入采样保持电路，被配置为采样和保持模拟输入信号; DA转换器，被配置为将数字信号转换为模拟信号; 比较器电路，被配置为输出指示模拟输入信号和模拟信号之间的尺寸关系的比较信号; 顺序比较寄存器，其被配置为基于比较信号顺序地定义存储在寄存器中的数字信号的每个位置; 以及选择电路，被配置为当转换选择信号指示AD转换时将数字信号输出到DA转换器，并且当转换选择信号指示DA转换时，将数字输入信号输出到DA转换器。

    IMAGE FORMING APPARATUS
    5.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号：US20150220032A1

    公开(公告)日：2015-08-06

    申请号：US14487741

    申请日：2014-09-16

    申请人： Nobutaka TAKEUCHI ,  Akira Yoshida

    发明人： Nobutaka TAKEUCHI ,  Akira Yoshida

    IPC分类号： G03G15/00

    CPC分类号： G03G15/5058 ,  G03G15/5041 ,  G03G15/5054

    摘要： An image forming apparatus includes an image information acquisition unit that acquires image information; a toner image formation unit that forms, in response to a control parameter, a toner image on a surface of an image carrier based on the image information; an image density detection unit that produces a detection result indicative of image density of the toner image; and a control unit that determines whether to use a predetermined region in the toner image formed on the surface of the image carrier based on the image information for a detection of the image density of the toner image, and when the predetermined region is determined to be used for the detection of the image density, corrects the control parameter used by the toner image formation unit based on the detection result so as to maintain the image density in the predetermined region within a predetermined range.

    摘要翻译： 图像形成装置包括获取图像信息的图像信息获取单元; 调色剂图像形成单元，其响应于控制参数，基于所述图像信息形成图像载体的表面上的调色剂图像; 图像浓度检测单元，其产生指示调色剂图像的图像浓度的检测结果; 以及控制单元，其基于用于检测调色剂图像的图像浓度的图像信息来确定是否使用形成在图像载体的表面上的调色剂图像中的预定区域，并且当确定预定区域为 用于检测图像浓度，基于检测结果校正由调色剂图像形成单元使用的控制参数，以将预定区域中的图像浓度保持在预定范围内。

    Failure detecting apparatus for hydraulic circuit of gearbox
    8.
    发明授权
    Failure detecting apparatus for hydraulic circuit of gearbox 有权
    变速箱液压回路故障检测装置

    公开(公告)号：US08439175B2

    公开(公告)日：2013-05-14

    申请号：US12975374

    申请日：2010-12-22

    申请人： Tomoaki Ishikawa ,  Koichiro Inukai ,  Akira Yoshida ,  Atsushi Abe ,  Tamaki Sakurai

    发明人： Tomoaki Ishikawa ,  Koichiro Inukai ,  Akira Yoshida ,  Atsushi Abe ,  Tamaki Sakurai

    IPC分类号： F16H61/12 ,  F16H61/14

    CPC分类号： F16K31/0631 ,  F16H61/12 ,  F16H2061/1208 ,  F16H2061/126 ,  F16H2061/1264 ,  Y10T137/7761 ,  Y10T137/85978

    摘要： A failure detecting apparatus for a hydraulic circuit of a gearbox includes an operating-state detector. The operating-state detector is configured to detect an operating state of a subject to be controlled with a control-signal pressure output from a solenoid valve. A current setting device is configured to set an electrical current supplied to a solenoid so as to close an output oil passage when a modulator valve is normal and to open the output oil passage when an open failure occurs in the modulator valve, while the solenoid valve is conductive. A failure determining device is configured to detect a failure of the modulator valve when the operating state of the subject to be detected by the operating-state detector is abnormal after a value of the electrical current to be supplied to the solenoid is set at the current setting device.

    摘要翻译： 用于变速箱的液压回路的故障检测装置包括操作状态检测器。 操作状态检测器被配置为通过从电磁阀输出的控制信号压力来检测要控制的对象的操作状态。 电流设定装置被配置为设置供给螺线管的电流，以在调节阀正常时闭合输出油路，并且在调节阀中发生开路故障时打开输出油路，同时电磁阀 是导电的。 故障确定装置被配置为当要提供给螺线管的电流值被设定为当前值时，当操作状态检测器检测到的被检体的操作状态异常时，检测调节阀的故障 设置设备。