公开(公告)号：US08040267B2

公开(公告)日：2011-10-18

申请号：US12712249

申请日：2010-02-25

申请人： Yasuyuki Shirasaka ,  Norikazu Okada

发明人： Yasuyuki Shirasaka ,  Norikazu Okada

IPC分类号： H03M1/12

CPC分类号： G01P3/489 ,  G01D5/36 ,  G01P13/045 ,  H03M5/20

摘要： A decoder device has a reference voltage generating section for outputting first and second threshold level signals, a first comparator for comparing a stair-stepped waveform input signal and the first threshold level signal to output a comparison result, a second comparator for comparing the input signal and the second threshold level signal to output a comparison result, and a logical operation section for performing a logical operation between output signals of the first and second comparators to output a signal decoded from the input signal. A threshold level represented by the first threshold level signal intersects a riser section of one stepped waveform out of two adjacent stepped waveforms in the input signal, and a threshold level represented by the second threshold level signal intersects a riser section of the other stepped waveform out of the two adjacent stepped waveforms of the stair-stepped waveform input signal.

摘要翻译： 解码器装置具有用于输出第一和第二阈值电平信号的参考电压产生部分，用于比较阶梯式波形输入信号和第一阈值电平信号以输出比较结果的第一比较器，用于比较输入信号 和第二阈值电平信号以输出比较结果，以及逻辑运算部分，用于在第一和第二比较器的输出信号之间执行逻辑运算，以输出从输入信号解码的信号。 由第一阈值电平信号表示的阈值电平与输入信号中的两个相邻阶梯波形中的一个阶梯波形的提升部分相交，并且由第二阈值电平信号表示的阈值电平与另一阶梯波形输出的提升部分相交 的台阶阶波形输入信号的两个相邻阶梯波形。

公开(公告)号：US20110064444A1

公开(公告)日：2011-03-17

申请号：US12881708

申请日：2010-09-14

申请人： Hiroshi ADACHI ,  Eiji Nemoto ,  Takuma Kasai ,  Kiriko Chosokabe ,  Norikazu Okada

发明人： Hiroshi ADACHI ,  Eiji Nemoto ,  Takuma Kasai ,  Kiriko Chosokabe ,  Norikazu Okada

IPC分类号： G03G15/20 ,  H05B1/02

CPC分类号： G03G15/80 ,  G03G15/2039

摘要： A heater control device includes a temperature detector that detects a temperature of a heated object heated by a heater; an alternating-current power supply for applying an alternating current voltage to the heater; a turn-on ratio decision unit that determines a turn-on ratio of the heater based on the temperature and a target temperature; a turn-on pattern decision unit that determines a partial turn-on pattern, as the turn-on pattern of the heater, which is a pattern of a turn-on ratio higher than the determined turn-on ratio in terms of a control-period, and to which a partial turn-on instead of a full turn-on is allocated on a half-wavelength basis of the alternating current voltage within the control period based on the turn-on ratio of the heater; and a turn-on controller that controls turn-on of the heater based on the determined turn-on pattern.

摘要翻译： 一种加热器控制装置，包括：温度检测器，其检测由加热器加热的被加热物体的温度; 用于向所述加热器施加交流电压的交流电源; 基于所述温度和目标温度确定所述加热器的接通比的导通比判定单元; 确定部分开启模式的开启模式决定单元，作为加热器的点亮模式，其是作为控制开关模式的开启比率高于所确定的导通率的模式， 并且基于加热器的接通比，在控制周期内的交流电压的基于半波长的基础上分配部分导通而不是完全导通; 以及基于确定的开启模式来控制加热器的接通的导通控制器。

公开(公告)号：US20090238595A1

公开(公告)日：2009-09-24

申请号：US12382501

申请日：2009-03-18

申请人： Norikazu Okada

发明人： Norikazu Okada

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2025

摘要： In a fixing device, a fixing unit fixes a toner image transferred onto a recording medium by a heating target unit heated by a plurality of heating units each of which is grouped as a first heating unit to which power is selectively supplied or a second heating unit to which power is supplied in priority to the first heating unit, and a supply control unit supplies power to a heating unit grouped as the second heating unit and selectively supplies power to a heating unit grouped as the first heating unit, among the heating units that heat the heating target unit of which detected temperature by a detecting unit is lower than a target temperature.

摘要翻译： 在固定装置中，固定单元通过加热对象单元来固定转印到记录介质上的调色剂图像，所述加热对象单元被加热的多个加热单元加热，每个加热单元被分组为选择供电的第一加热单元或第二加热单元 优先向第一加热单元提供电力，并且供电控制单元向被分组为第二加热单元的加热单元供电，并且在加热单元之间选择性地向被分组为第一加热单元的加热单元供电， 将检测单元的检测温度的加热对象单元加热到目标温度以下。

公开(公告)号：US20060038116A1

公开(公告)日：2006-02-23

申请号：US11206739

申请日：2005-08-19

申请人： Norikazu Okada

发明人： Norikazu Okada

IPC分类号： G01D5/34

CPC分类号： G01D5/34792

摘要： Given n move information signals and m slits 22 (n and m: positive integers), the number of photodiodes associated with the m slits 22 is set to n×ma (a: a positive integer). By doing so, all of the (n×ma) photodiodes 23 can necessarily be positioned evenly in units of an equal number against the slits 22 and the move information signals. Also, the photodiodes can be subdivided more than in a conventional optical encoder having photodiodes counting a number represented by m×n, which is a common multiple of the number m of the slits 22 and the number n of move information signals. Thus, with light reception area of each photodiode reduced, shifts, distortions, variations and the like of the move information signals can be suppressed, resolution can be enhanced, and accurate move information signals can be obtained.

摘要翻译： 给定n个信息信号和m个狭缝22（n和m：正整数），与m个狭缝22相关联的光电二极管的数量被设置为nxm （a：正整数）。 通过这样做，所有的（nxm ^{a ）光电二极管23必须以相对于狭缝22和移动信息信号的相等数量的均匀的位置被均匀地定位。 此外，光电二极管可以比具有对由狭缝22的数量m和移动信息信号的n的公倍数m×n表示的数量进行计数的光电二极管的常规光学编码器进行细分。 因此，由于每个光电二极管的光接收面积减小，所以能够抑制移动信息信号的偏移，变形，变动等，能够提高分辨率，能够获得准确的移动信息信号。}

公开(公告)号：US09661169B2

公开(公告)日：2017-05-23

申请号：US15154845

申请日：2016-05-13

申请人： Tomoyuki Yamashita ,  Atsuki Iwata ,  Takuma Kasai ,  Norikazu Okada ,  Homare Ehara ,  Tetsuya Yano ,  Toshimasa Aoki ,  Ryohta Kubokawa ,  Shuntaroh Nakayama ,  Takaaki Shirai

发明人： Tomoyuki Yamashita ,  Atsuki Iwata ,  Takuma Kasai ,  Norikazu Okada ,  Homare Ehara ,  Tetsuya Yano ,  Toshimasa Aoki ,  Ryohta Kubokawa ,  Shuntaroh Nakayama ,  Takaaki Shirai

IPC分类号： H04N1/00 ,  H02J7/00

CPC分类号： H04N1/00893 ,  H02J7/0029 ,  H02J7/0063 ,  H02J2007/0067 ,  H04N1/00899 ,  H04N2201/0094

摘要： An electric power supplying device includes a main power supply that supplies electric power to each component of an apparatus, an auxiliary power supply that supplies electric power to an assisted component in the apparatus, the assisted component requiring power supply during start-up time of the apparatus and having a whose start-up time being equal to or longer than a predetermined period of time, a discharging control circuit that controls the auxiliary power supply to cause the auxiliary power supply to output a voltage, the output voltage being lower than a voltage output by the main power supply and being equal to or more than a lower limit voltage of a voltage range that the assisted component is operable, and a power supply prevention circuit that prevents the auxiliary power supply from supplying power to a component other than the assisted component in the apparatus.

公开(公告)号：US09389573B2

公开(公告)日：2016-07-12

申请号：US14745828

申请日：2015-06-22

申请人： Norikazu Okada ,  Takaaki Shirai ,  Takuma Kasai ,  Keita Maejima ,  Tomoyuki Yamashita ,  Ryohta Kubokawa ,  Satoru Tao ,  Homare Ehara

发明人： Norikazu Okada ,  Takaaki Shirai ,  Takuma Kasai ,  Keita Maejima ,  Tomoyuki Yamashita ,  Ryohta Kubokawa ,  Satoru Tao ,  Homare Ehara

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/80 ,  G03G15/2039

摘要： An image forming apparatus includes a heat generator configured to generate heat in the image forming apparatus; a converter including a capacitor to convert AC power supplied from an external power supply into DC power for a load unit; a thermoelectric transducer configured to convert the generated heat into DC power for the load unit; a detector configured to detect a voltage of the AC power; and a controller configured to cause the converter to continue supplying the DC power to the load unit when a first elapsed time elapsed since the detected voltage drops below a rated voltage is shorter than a first time period shorter than an upper limit of a period of time over which the capacitor is dischargeable, and cause the thermoelectric transducer to supply the DC power to the load unit when the first elapsed time exceeds the first time period.

摘要翻译： 图像形成装置包括被配置为在图像形成装置中产生热量的发热体; 转换器，包括用于将从外部电源供应的AC电力转换成用于负载单元的DC电力的电容器; 配置为将所产生的热量转换成用于负载单元的直流电力的热电换能器; 检测器，被配置为检测AC电力的电压; 以及控制器，被配置为当从检测到的电压下降到额定电压以下经过第一经过时间时，使转换器继续向负载单元供给直流电力短于比一个时间段的上限短的第一时间段 电容器可以放电，并且当第一经过时间超过第一时间段时，使热电换能器向负载单元提供直流电力。

公开(公告)号：US08530800B2

公开(公告)日：2013-09-10

申请号：US12881708

申请日：2010-09-14

申请人： Hiroshi Adachi ,  Eiji Nemoto ,  Takuma Kasai ,  Kiriko Chosokabe ,  Norikazu Okada

发明人： Hiroshi Adachi ,  Eiji Nemoto ,  Takuma Kasai ,  Kiriko Chosokabe ,  Norikazu Okada

IPC分类号： H05B1/02

CPC分类号： G03G15/80 ,  G03G15/2039

摘要： A heater control device includes a temperature detector that detects a temperature of a heated object heated by a heater; an alternating-current power supply for applying an alternating current voltage to the heater; a turn-on ratio decision unit that determines a turn-on ratio of the heater based on the temperature and a target temperature; a turn-on pattern decision unit that determines a partial turn-on pattern, as the turn-on pattern of the heater, which is a pattern of a turn-on ratio higher than the determined turn-on ratio in terms of a control-period, and to which a partial turn-on instead of a full turn-on is allocated on a half-wavelength basis of the alternating current voltage within the control period based on the turn-on ratio of the heater; and a turn-on controller that controls turn-on of the heater based on the determined turn-on pattern.

摘要翻译： 一种加热器控制装置，包括：温度检测器，其检测由加热器加热的被加热物体的温度; 用于向所述加热器施加交流电压的交流电源; 基于所述温度和目标温度确定所述加热器的接通比的导通比判定单元; 确定部分开启模式的开启模式决定单元，作为加热器的点亮模式，其是作为控制开关模式的导通比高于所确定的导通率的模式， 并且基于加热器的接通比，在控制周期内的交流电压的基于半波长的基础上分配部分导通而不是完全导通; 以及基于确定的开启模式来控制加热器的接通的导通控制器。

公开(公告)号：US08260165B2

公开(公告)日：2012-09-04

申请号：US12819461

申请日：2010-06-21

申请人： Kiriko Chosokabe ,  Eiji Nemoto ,  Norikazu Okada ,  Takuma Kasai

发明人： Kiriko Chosokabe ,  Eiji Nemoto ,  Norikazu Okada ,  Takuma Kasai

IPC分类号： G03G15/20

CPC分类号： G03G15/80 ,  G03G15/2039

摘要： An image forming apparatus includes a halogen heater in a fixing unit; an AC source applying an alternating voltage to the halogen heater; a half-wave control unit that performs the heater half-wave control to control the halogen heater on the half-wavelength basis, according to a heater-on/off pattern set for each control cycle having a predetermined length; a heater-off-time measuring unit that measures heater-off period of time; a phase-control-execution determining unit that determines, based on the measured heater-off period of time, whether the heater phase control is to be performed on the alternating voltage, the phase control being performed by shifting phase of the alternating voltage; and a phase control unit that performs, when the phase control is determined to be performed, the phase control only for a period of time depending on the measured heater-off period of time after switch-on of the heater and before execution of the half-wave control.

摘要翻译： 图像形成装置包括固定单元中的卤素加热器; 将交流电源施加到所述卤素加热器的交流电源; 根据对每个具有预定长度的控制周期设置的加热器开/关模式，执行加热器半波控制以半波长基准控制卤素加热器的半波控制单元; 加热器关闭时间测量单元，其测量加热器关闭时间段; 相位控制执行确定单元，基于所测量的加热器关闭时间段来确定是否对交流电压执行加热器相位控制，通过交流电压的相位移相来执行相位控制; 以及相位控制单元，当相位控制被确定执行时，执行相位控制，该时间段取决于加热器接通之后的测量的加热器关闭时间段，并且在执行半个时间之前 波控制。

公开(公告)号：US20120211639A1

公开(公告)日：2012-08-23

申请号：US13402225

申请日：2012-02-22

申请人： Kohei YASUKAWA ,  Norikazu Okada ,  Yasuyuki Shirasaka

发明人： Kohei YASUKAWA ,  Norikazu Okada ,  Yasuyuki Shirasaka

IPC分类号： G01J1/44

CPC分类号： G01J1/44

摘要： The optical sensor includes a photodiode PD1 with its anode grounded, a diode group DG1 having one end connected to a cathode of the photodiode PD1, a current source I1 having one end connected to the other end of the diode group DG1, a power supply section for applying a constant voltage to the other end of the current source I1, and a grounded-emitter NPN transistor QOUT1 having a base connected to the cathode of the photodiode PD1 and a collector connected to one end of the current source I1. The diode group DG1 is provided by n diodes D1, D2, . . . , Dn connected in series so that their forward directions are directed toward the photodiode PD1 side, and a photocurrent which flows from a connecting point between the diode group and the current source to the photodiode is converted into a voltage and outputted as a photoelectric conversion signal.

摘要翻译： 光传感器包括其阳极接地的光电二极管PD1，一端连接到光电二极管PD1的阴极的二极管组DG1，一端连接到二极管组DG1的另一端的电流源I1，电源部分 用于向电流源I1的另一端施加恒定电压，以及具有连接到光电二极管PD1的阴极的基极的接地发射极NPN晶体管QOUT1和连接到电流源I1的一端的集电极。 二极管组DG1由n个二极管D1，D2提供。 。 。 ，Dn串联连接，使其正向指向光电二极管PD1侧，从二极管组和电流源之间的连接点流向光电二极管的光电流转换为电压并作为光电转换信号输出 。

公开(公告)号：US20100239301A1

公开(公告)日：2010-09-23

申请号：US12725630

申请日：2010-03-17

申请人： Eiji NEMOTO ,  Norikazu Okada

发明人： Eiji NEMOTO ,  Norikazu Okada

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： A heater controlling apparatus for controlling supply of alternating current power to at least one heater that heats a heating object includes a detection unit configured to detect a temperature of the heating object, a determining unit configured to determine a proportion of lighting time for lighting the heater based on the detected temperature and a preset target temperature of the heating object, and a control unit configured to control the supply of alternating current power to the heater based on both a control cycle and one or more lighting patterns, the heater being lit according to the one or more lighting patterns defined for each control cycle, and both the control cycle and the lighting pattern varying in response to the determined proportion of lighting time.

摘要翻译： 一种加热器控制装置，用于控制向加热物体加热的至少一个加热器的交流电力供给，包括：检测单元，被配置为检测加热物体的温度;确定单元，被配置为确定用于点亮加热器的点亮时间的比例 基于所述检测温度和所述加热对象的预设目标温度，以及控制单元，其被配置为基于控制周期和一个或多个照明模式来控制对所述加热器的交流电力的供应，所述加热器根据 为每个控制周期定义的一个或多个照明模式，并且控制周期和照明模式响应于所确定的点亮时间的比例而变化。