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    • 1. 发明授权
    • Sheet conveyance device and image forming apparatus using the same device
    • 纸张输送装置和使用相同装置的图像形成装置
    • US08505906B2
    • 2013-08-13
    • US12624688
    • 2009-11-24
    • Kunihiro KawachiKyoichi MizunoMasahiro Matsuo
    • Kunihiro KawachiKyoichi MizunoMasahiro Matsuo
    • B65H3/06
    • B65H3/0676B65H2301/51212B65H2404/1116
    • A sheet conveyance device to convey a sheet which is stored within a sheet storing section, including: a plurality of sheet conveyance rollers, mounted on a sheet storing section, to be parallel to each other with respect to rotating centers, wherein the plurality of the sheet conveyance rollers come into contact with the sheet to convey the sheet toward an exterior of the sheet conveyance device; and a coupling section to couple the plurality of the sheet conveyance rollers and to rotate the plurality of the sheet conveyance rollers, wherein at least one of the plurality of the sheet conveyance rollers represents an irregularly shaped roller, wherein the irregularly shaped roller is coupled to another sheet conveyance roller by the coupling section, and wherein a distance between a rotation center and a peripheral surface of the irregularly shaped roller is inconstant, in a rotational direction of the irregularly shaped roller.
    • 一种纸张输送装置,用于输送存储在纸张存储部分中的纸张,包括:安装在纸张存储部分上的多个纸张传送辊,其相对于旋转中心彼此平行,其中, 片材输送辊与片材接触以将片材朝向片材输送装置的外部输送; 以及耦合部分,其耦合所述多个所述片材传送辊并使所述多个片材传送辊旋转,其中所述多个片材传送辊中的至少一个表示不规则形状的辊,其中所述不规则形状的辊连接到 另一个片材传送辊通过联接部分,并且其中不规则形状的辊的旋转中心和外周表面之间的距离在不规则形状的辊的旋转方向上是不变的。
    • 5. 发明授权
    • Step-down switching regulator
    • 降压开关稳压器
    • US07498785B2
    • 2009-03-03
    • US12021879
    • 2008-01-29
    • Shinya ShimizuMasahiro Matsuo
    • Shinya ShimizuMasahiro Matsuo
    • G05F1/40
    • H02M3/1588H02M3/157H02M2001/0009H02M2001/0025Y02B70/1466
    • A step-down switching regulator is disclosed that includes a first switching element, a smoothing circuit part including an inductor and a second switching element for synchronous rectification, a switching controller circuit part, and a reverse current detector circuit part that detects a reverse current flowing from the inductor to the second switching element and interrupts the reverse current by causing the switching controller circuit part to turn off the second switching element upon detection of the reverse current. Detecting a change in a set voltage, the reverse current detector circuit part stops, for a predetermined period of time, the operation of causing the switching controller circuit part to turn off the second switching element due to detection of the reverse current, and after the predetermined period of time is over, causes the switching controller circuit part to turn off the second switching element upon detection of the reverse current.
    • 公开了一种降压开关调节器,其包括第一开关元件,包括电感器的平滑电路部分和用于同步整流的第二开关元件,开关控制器电路部分和检测反向电流流动的反向电流检测器电路部分 从电感器到第二开关元件,并且通过在检测到反向电流时使开关控制器电路部分关断第二开关元件来中断反向电流。 检测设定电压的变化时,反向电流检测电路部分在预定的时间段内停止由于检测到反向电流而导致开关控制器电路部分关闭第二开关元件的操作,并且在 在预定时间段结束时,在检测到反向电流时,切换控制器电路部分关闭第二开关元件。
    • 6. 发明授权
    • Step-up/down DC-DC converter
    • 升压/降压DC-DC转换器
    • US07391189B2
    • 2008-06-24
    • US10554404
    • 2004-04-22
    • Shohichi NittaMasahiro MatsuoRitsuko Nomura
    • Shohichi NittaMasahiro MatsuoRitsuko Nomura
    • G05F1/62G05F1/618
    • H02M3/1582
    • A step-up/down DC-DC converter is disclosed that includes: a step-up/down part generating an output voltage by stepping up or down an input voltage; and a control part generating an error signal indicating an error between a voltage value obtained by dividing the output voltage and a predetermined reference voltage, and causing the step-up/down part to perform a step-up or step-down operation based on the comparison between the error signal and first and second triangle wave signals. The control part includes a first circuit generating the first triangle wave signal for step-down control and a second circuit generating the second triangle wave signal for step-up control. The first circuit generates a clock signal synchronized with the first triangle wave signal, and outputs the clock signal to the second circuit. The second circuit generates the second triangle wave signal synchronized with the first triangle wave signal based on the input clock signal.
    • 公开了一种升压/降压DC-DC转换器,其包括:升压/降压部分,通过升压或降低输入电压产生输出电压; 以及控制部,其生成表示通过分压输出电压而获得的电压值与预定参考电压之间的误差的误差信号,并且使升压/降压部分基于所述输出电压进行升压或降压操作 误差信号与第一和第二三角波信号的比较。 控制部分包括产生用于降压控制的第一三角波信号的第一电路和产生用于升压控制的第二三角波信号的第二电路。 第一电路产生与第一三角波信号同步的时钟信号,并将时钟信号输出到第二电路。 第二电路基于输入时钟信号产生与第一三角波信号同步的第二三角波信号。
    • 7. 发明授权
    • Switching regulator and method for changing output voltages thereof
    • 用于改变其输出电压的开关调节器和方法
    • US07221129B2
    • 2007-05-22
    • US11115342
    • 2005-04-27
    • Masahiro MatsuoTomonari Katoh
    • Masahiro MatsuoTomonari Katoh
    • G05F1/00G05F1/613
    • H02M3/158
    • A switching regulator including two switching elements and a control switching part. The two switching elements perform a switching operation according to a control signal to control an output voltage. One of the two switching elements is larger in ON-resistance and smaller in control electrode capacitance than the other. The control switching part performs PFM control over the one of the two switching elements to output a first predetermined voltage in a first operation mode, performs PWM control over the two switching elements to output a second predetermined voltage higher than the first predetermined voltage in a second operation mode, and switches the first operation mode to the second operation mode by performing the PFM control, changing the first predetermined voltage to the second predetermined voltage, and switching the PFM control to the PWM control after a first predetermined time elapses since start of increase in the output voltage.
    • 一种开关调节器,包括两个开关元件和一个控制开关部件。 两个开关元件根据控制信号执行开关操作以控制输出电压。 两个开关元件中的一个在导通电阻中较大,并且在控制电极电容中较小。 控制切换部分对两个开关元件中的一个进行PFM控制,以在第一操作模式下输出第一预定电压,对两个开关元件执行PWM控制,以在第二开关元件中输出比第一预定电压高的第二预定电压 操作模式,并且通过执行PFM控制将第一操作模式切换到第二操作模式,将第一预定电压改变为第二预定电压,并且在从开始增加开始经过第一预定时间后,将PFM控制切换到PWM控制 在输出电压。
    • 9. 发明申请
    • DC-DC converting method and apparatus
    • DC-DC转换方法和装置
    • US20050280402A1
    • 2005-12-22
    • US11153544
    • 2005-06-16
    • Shoichi NittaMasahiro Matsuo
    • Shoichi NittaMasahiro Matsuo
    • G05F1/24H02M3/155H02M3/158
    • H02M3/1582
    • A DC-DC converting apparatus including a step-up and step-down circuit stepping up/down an input voltage to generate an output voltage and a PWM control circuit. The PWM control circuit generates an error signal, first to third voltages, a first triangular wave signal varying between the first and second voltages, and a second triangular wave signal varying between the third voltage and a fourth voltage determined based on the first to third voltages. The PWM control circuit compares the error signal with the first and second triangular wave signals and causes the step-up and step-down circuit to step up/down the input voltage based on the comparison. The first to fourth voltages V1 to V4 satisfy V1
    • 一种DC-DC转换装置,包括升压和降压电路,用于对输入电压进行升压/降压以产生输出电压和PWM控制电路。 PWM控制电路产生误差信号,第一至第三电压,在第一和第二电压之间变化的第一三角波信号和在基于第一至第三电压确定的第三电压和第四电压之间变化的第二三角波信号 。 PWM控制电路将误差信号与第一和第二三角波信号进行比较,并使升压和降压电路基于比较来升高/降低输入电压。 第一至第四电压V 1至V 4满足V 1
    • 10. 发明申请
    • Digital television broadcast signal receiver
    • 数字电视广播信号接收机
    • US20050264700A1
    • 2005-12-01
    • US11126140
    • 2005-05-11
    • Masahiro Matsuo
    • Masahiro Matsuo
    • H04B1/16H04N5/44H04N11/00
    • H04N5/4401H04N21/4263H04N21/4345H04N21/435H04N21/44209H04N21/4524H04N21/4622H04N2005/4428
    • In a digital TV broadcast signal receiver connected to a multi-directional antenna called smart antenna, a time necessary for deciding an optimum signal receiving direction of each receivable channel is shortened with using local information relating to a location of the multi-directional antenna and information of TV towers including location information of TV towers and channel information of channels, TV broadcast signals of which are transmitted from each TV tower. When the local information is inputted, the digital TV broadcast signal receiver identifies at least one TV tower and selects a channel based on the channel information. An optimum signal receiving direction of the selected channel are decided as the optimum signal receiving directions of all the channels transmitted from the same TV tower.
    • 在连接到称为智能天线的多向天线的数字电视广播信号接收机中,通过使用与多方向天线的位置有关的本地信息和信息来缩短用于确定每个可接收信道的最佳信号接收方向所需的时间 包括电视塔的位置信息和频道信道,电视广播信号从每个电视塔发送。 当输入本地信息时,数字电视广播信号接收机识别至少一个电视塔,并根据频道信息选择频道。 所选频道的最佳信号接收方向被确定为从同一TV塔发送的所有频道的最佳信号接收方向。