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1. 发明授权

US06788234B2 Method of selecting cells for input code in a digital-to-analog converter 失效
标题翻译：在数模转换器中选择输入代码的单元的方法
公开(公告)号：US06788234B2
公开(公告)日：2004-09-07
申请号：US10359503
申请日：2003-02-05
申请人： Masami Aiura , Satoshi Takahashi , Yuichi Nakatani
发明人： Masami Aiura , Satoshi Takahashi , Yuichi Nakatani
IPC分类号： H03M166
CPC分类号： H03M1/0665 , H03M1/747
摘要： A method for selecting cells in response to input codes of a digital-to-analog converter distributes noise based on cyclicality of selection patterns to reduce its value, without being dependent upon the input codes. A 6-bit current output type digital-to-analog converter has 63 current source cells C01 through C63. A prime number of, or 61, current source cells are used as cyclically selected cells. That is, 61 current source cells C02-C62, ranging from the second left-most current source cell C02 to the second right-most current source cell C62, are used as cyclically selected cells. The remaining left-most current source cell C01 and right-most current source cell C63 are used as non-cyclically selected cells. The cyclically selected cells, including the 61 current source cells, are selected in response to input codes using a Data Weighted Average (DWA) technique.
摘要翻译：响应于数模转换器的输入代码来选择单元的方法基于选择模式的周期性来分配噪声以减小其值，而不依赖于输入代码。 6位电流输出型数模转换器具有63个电流源单元C01至C63。当前源单元的素数或61个被用作循环选择的单元。也就是说，从第二最左电流源电池C02到第二最右边电流源电池C62的61个电流源电池C02-C62用作循环选择的电池。剩余的最左电流源单元C01和最右边的电流源单元C63用作非循环选择的单元。响应于使用数据加权平均（DWA）技术的输入代码选择周期性选择的单元，包括61个电流源单元。

2. 发明授权

US07508177B2 Method and circuit for reducing regulator output noise 有权
标题翻译：减少调节器输出噪声的方法和电路
公开(公告)号：US07508177B2
公开(公告)日：2009-03-24
申请号：US11759944
申请日：2007-06-08
申请人： Masami Aiura , Satoshi Takahashi
发明人： Masami Aiura , Satoshi Takahashi
IPC分类号： G05F1/575 , G05F1/563
CPC分类号： H02M3/1588 , H02M1/44 , H02M2001/0045 , Y02B70/1466
摘要： A regulator circuit for reducing the output noise when regulators are switched includes a linear regulator and a switching regulator. The linear regulator generates a first regulator voltage from an input voltage with a first feedback loop. The switching regulator generates a second regulator voltage from the input voltage with a second feedback loop, which is connected to the first feedback loop. A loop control circuit controls the first feedback loop so as to lower the first regulator voltage when the switching regulator is activated.
摘要翻译：用于在调节器切换时降低输出噪声的调节器电路包括线性稳压器和开关调节器。线性稳压器利用第一反馈环路从输入电压产生第一调节器电压。开关稳压器利用第二反馈回路从输入电压产生第二调节器电压，第二反馈回路连接到第一反馈回路。回路控制电路控制第一反馈回路，以便当开关调节器被激活时降低第一调节器电压。

3. 发明授权

US5757303A Multi-bit A/D converter having reduced circuitry 失效
标题翻译：具有减少电路的多位A / D转换器
公开(公告)号：US5757303A
公开(公告)日：1998-05-26
申请号：US649063
申请日：1996-05-16
申请人： Yuichi Nakatani , Satoshi Takahashi , Masami Aiura
发明人： Yuichi Nakatani , Satoshi Takahashi , Masami Aiura
IPC分类号： H03M1/14 , H03M1/20 , H03M1/36
CPC分类号： H03M1/204 , H03M1/365
摘要： The A/D converter comprises a resistor series (30), a plurality of first comparators (1) and a plurality of second comparators (2). Resistor series (30) has a plurality of resistors(R) connected in series between two terminals to which predetermined reference voltages are applied. First comparator (1) compares a node voltage between resistors and an analog voltage signal to be compared. Second comparator (2) compares an average voltage of the two node voltages across each resistor R and the analog voltage signal. First and second comparators (1,2) are disposed alternatively.
摘要翻译： A / D转换器包括电阻器系列（30），多个第一比较器（1）和多个第二比较器（2）。电阻器系列（30）具有串联连接到施加了预定参考电压的两个端子之间的多个电阻器（R）。第一比较器（1）比较电阻器和待比较的模拟电压信号之间的节点电压。第二比较器（2）比较每个电阻器R上的两个节点电压的平均电压和模拟电压信号。第一和第二比较器（1,2）交替布置。

4. 发明授权

US06686859B2 Digital-to-analog-converter 失效
标题翻译：数模转换器
公开(公告)号：US06686859B2
公开(公告)日：2004-02-03
申请号：US10351724
申请日：2003-01-27
申请人： Masami Aiura , Satoshi Takahashi , Yuichi Nakatani
发明人： Masami Aiura , Satoshi Takahashi , Yuichi Nakatani
IPC分类号： H03M166
CPC分类号： H03M1/0643 , H03M1/0682 , H03M1/747
摘要： It is an objective to provide a digital-to-analog converter circuit that allows the value of the current output from each current source cell to be identical, regardless of the position of that current source cell relative to the power supply line. To ensure that the voltages supplied to the respective current source cells are identical, the power supply lines La and Lb are disposed in the form of a right triangle modified such that their line widths W1 and W2 become constantly narrower on one side depending on the position at which the power supply lines La and Lb are formed. The power supply lines La and Lb are also disposed such that their hypotenuses are opposite to each other.
摘要翻译：目的是提供数模转换器电路，其允许来自每个电流源单元的电流输出的值相同，而不管该电流源单元相对于电源线的位置如何。为了确保提供给各个电流源单元的电压相同，电源线La和Lb以直角三角形的形式被设置，使得它们的线宽W1和W2根据位置在一侧变得不断变窄在其上形成电源线La和Lb。电源线La和Lb也被布置成使得它们的斜边彼此相对。

5. 发明授权

US07795848B2 Method and circuit for generating output voltages from input voltage 有权
标题翻译：用于从输入电压产生输出电压的方法和电路
公开(公告)号：US07795848B2
公开(公告)日：2010-09-14
申请号：US11746071
申请日：2007-05-09
申请人： Masami Aiura , Satoshi Takahashi
发明人： Masami Aiura , Satoshi Takahashi
IPC分类号： G05F1/00 , H02J1/10 , H02J3/00 , H02J3/14 , H02M1/10
CPC分类号： G05F1/577 , Y10T307/391
摘要： A power supply circuit that accurately generates output voltages with the same regulator includes a regulator for generating a first output voltage from an input voltage. A first switch circuit, connected to the regulator, selectively outputs the first output voltage of the regulator as a second output voltage from the power supply circuit. A pre-charge circuit, connected to the regulator and the first switch circuit, generates the second output voltage from the input voltage before the first output voltage of the regulator is output as the second output voltage while controlling the first switch circuit.
摘要翻译：使用相同的调节器精确地产生输出电压的电源电路包括用于从输入电压产生第一输出电压的调节器。连接到调节器的第一开关电路选择性地输出调节器的第一输出电压作为来自电源电路的第二输出电压。连接到调节器和第一开关电路的预充电电路在控制第一开关电路之前，在调节器的第一输出电压被输出为第二输出电压之前，从输入电压产生第二输出电压。

6. 发明申请

US20080278124A1 METHOD AND CIRCUIT FOR GENERATING OUTPUT VOLTAGES FROM INPUT VOLTAGE 有权
标题翻译：用于从输入电压产生输出电压的方法和电路
公开(公告)号：US20080278124A1
公开(公告)日：2008-11-13
申请号：US11746071
申请日：2007-05-09
申请人： Masami Aiura , Satoshi Takahashi
发明人： Masami Aiura , Satoshi Takahashi
IPC分类号： G05F1/577
CPC分类号： G05F1/577 , Y10T307/391
摘要： A power supply circuit that accurately generates output voltages with the same regulator includes a regulator for generating a first output voltage from an input voltage. A first switch circuit, connected to the regulator, selectively outputs the first output voltage of the regulator as a second output voltage from the power supply circuit. A pre-charge circuit, connected to the regulator and the first switch circuit, generates the second output voltage from the input voltage before the first output voltage of the regulator is output as the second output voltage while controlling the first switch circuit.
摘要翻译：使用相同的调节器精确地产生输出电压的电源电路包括用于从输入电压产生第一输出电压的调节器。连接到调节器的第一开关电路选择性地输出调节器的第一输出电压作为来自电源电路的第二输出电压。连接到调节器和第一开关电路的预充电电路在控制第一开关电路之前，在调节器的第一输出电压被输出为第二输出电压之前，从输入电压产生第二输出电压。

7. 发明授权

US5977892A Offset cancellation circuit 失效
标题翻译：偏移消除电路
公开(公告)号：US5977892A
公开(公告)日：1999-11-02
申请号：US648645
申请日：1996-05-16
申请人： Yuichi Nakatani , Satoshi Takahashi , Masami Aiura
发明人： Yuichi Nakatani , Satoshi Takahashi , Masami Aiura
IPC分类号： H03K17/16 , H03K17/687 , H03M1/06
CPC分类号： H03K17/162 , H03K17/6872
摘要： An offset cancellation circuit(1) for an analog switch(10) is provided which substantially reduces the offset voltage induced by the analog switch circuit. The circuit(1) comprising a second P-channel transistor(2) and a third N-channel transistor(4) connected to each other in series, the drains of the second P-channel transistor and the third N-channel transistor being connected to the output terminal; a second N-channel transistor(3) and a third P-channel transistor(5) connected to each other in series, the drains of the second N-channel transistor and the third P-channel transistor being connected to the output terminal; the gate of the second P-channel transistor is connected to the gate of the N-channel transistor; and the gate of the second N-channel transistor is connected to the gate of the P-channel transistor.
摘要翻译：提供了用于模拟开关（10）的偏移消除电路（1），其大大减少了由模拟开关电路引起的偏移电压。电路（1）包括彼此串联连接的第二P沟道晶体管（2）和第三N沟道晶体管（4），第二P沟道晶体管和第三N沟道晶体管的漏极被连接到输出端子; 连接到第二N沟道晶体管和第三P沟道晶体管的第二N沟道晶体管和第三P沟道晶体管，第二N沟道晶体管和第三P沟道晶体管的漏极连接到输出端; 第二P沟道晶体管的栅极连接到N沟道晶体管的栅极; 并且第二N沟道晶体管的栅极连接到P沟道晶体管的栅极。

8. 发明申请

US20090121697A1 CIRCUIT AND METHOD FOR REDUCING OUTPUT NOISE OF REGULATOR 有权
标题翻译：用于减少调节器的输出噪声的电路和方法
公开(公告)号：US20090121697A1
公开(公告)日：2009-05-14
申请号：US11937959
申请日：2007-11-09
申请人： Masami Aiura , Kanji Egawa , Shintaroh Murakami
发明人： Masami Aiura , Kanji Egawa , Shintaroh Murakami
IPC分类号： G05F1/10 , G05F1/02
CPC分类号： H02M3/156 , H02M2001/0022 , Y10S323/901
摘要： A circuit and a method for reducing output noise when a pulse width modulation mode is started. A pulse width modulation circuit generates a first pulse signal having a duty cycle that is in accordance with an output voltage of a regulator circuit. A drive circuit generates the output voltage from an input voltage in response to the first pulse signal provided from the pulse width modulation circuit. A feed forward circuit controls the pulse width modulation circuit in a manner to generate the first pulse signal having a duty cycle that maintains the output voltage at a desired level before the pulse width modulation circuit provides the first pulse signal to the drive circuit.
摘要翻译：一种在开始脉宽调制模式时降低输出噪声的电路和方法。脉冲宽度调制电路产生具有与调节器电路的输出电压相应的占空比的第一脉冲信号。驱动电路响应于从脉宽调制电路提供的第一脉冲信号，从输入电压产生输出电压。前馈电路以脉冲宽度调制电路向驱动电路提供第一脉冲信号的方式控制脉宽调制电路，以产生具有将输出电压保持在期望电平的占空比的第一脉冲信号。

9. 发明授权

US5523797A Luminance signal and color signal separating circuit 失效
标题翻译：亮度信号和彩色信号分离电路
公开(公告)号：US5523797A
公开(公告)日：1996-06-04
申请号：US385261
申请日：1995-02-08
申请人： Osamu Saionji , Masami Aiura
发明人： Osamu Saionji , Masami Aiura
IPC分类号： H04N9/64 , H04N9/78
CPC分类号： H04N9/78
摘要： A circuit that separates a luminance signal and a color signal so that dot interference in a color transition area of a reproduced image is minimized. A color video signal is transmitted to an adaptive bandpass filter via a vertical carrier color signal extraction filter. An output signal from the adaptive bandpass filter represents the color signal portion of the color video signal. The color signal is subtracted from the color video signal via a subtractor circuit to produce the luminance signal portion of the color video signal. Since the output signal of the bandpass filter is subtracted from the color video signal, the luminance signal portion of the color video signal is separated without being affected by different colors before and after a color transition point.
摘要翻译：分离亮度信号和颜色信号的电路，使得再现图像的颜色过渡区域中的点干扰最小化。彩色视频信号通过垂直载波颜色信号提取滤波器传输到自适应带通滤波器。来自自适应带通滤波器的输出信号表示彩色视频信号的彩色信号部分。通过减法器电路从彩色视频信号中减去彩色信号，以产生彩色视频信号的亮度信号部分。由于从彩色视频信号中减去带通滤波器的输出信号，所以彩色视频信号的亮度信号部分被分离而不受颜色转换点之前和之后的不同颜色的影响。

10. 发明授权

US08493034B2 Charge control circuit and battery charger including a charge control circuit 有权
标题翻译：充电控制电路和充电器包括充电控制电路
公开(公告)号：US08493034B2
公开(公告)日：2013-07-23
申请号：US12748466
申请日：2010-03-29
申请人： Masami Aiura
发明人： Masami Aiura
IPC分类号： H02J7/04
CPC分类号： H02J7/0091
摘要： A charge control circuit for a battery charger that quickly detects an attachment state of a battery pack. The battery charger starts charging a battery pack and performs first and second temperature estimation processes. Then, the battery charger performs a first attachment detection process and when determining whether a battery is connected performs a third temperature estimation process. The battery charger performs a second attachment detection process and when determining whether the battery is connected performs a fourth temperature estimation process. The battery charger performs a third attachment detection process and when determining whether the battery is connected ends a single temperature scan and then repeats the routine starting from the first temperature estimation process.
摘要翻译：一种用于电池充电器的充电控制电路，其快速检测电池组的附着状态。电池充电器开始对电池组充电并执行第一和第二温度估计过程。然后，电池充电器执行第一附件检测处理，并且当确定电池是否连接时执行第三温度估计处理。电池充电器执行第二附件检测处理，并且当确定电池是否连接时执行第四温度估计处理。电池充电器执行第三附件检测处理，并且当确定电池连接是否结束单个温度扫描，然后从第一温度估计处理开始重复该程序。

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