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1. 发明授权

US08796988B2 Input-output circuit 有权
标题翻译：输入输出电路
公开(公告)号：US08796988B2
公开(公告)日：2014-08-05
申请号：US13430182
申请日：2012-03-26
申请人： Atsushi Wada , Hajime Mizukami , Mitsuaki Hatakeyama , Shigeto Kobayashi
发明人： Atsushi Wada , Hajime Mizukami , Mitsuaki Hatakeyama , Shigeto Kobayashi
IPC分类号： H02J7/00
CPC分类号： H02J7/0052 , G06F1/266 , H02J9/005 , H02J2007/0001 , H02J2007/0062
摘要： A power supply detection circuit detects power feeding to a VBUS terminal from the outside. A charger detection circuit detects the kind of charger by monitoring voltages of a DP terminal and a DM terminal. A control unit adjusts timing and instructs the charger detection circuit to start a charger kind detection process after a notification of detection of power feeding is received from the power supply detection circuit.
摘要翻译：电源检测电路检测从外部向VBUS端子供电。充电器检测电路通过监视DP端子和DM端子的电压来检测充电器的种类。在从电源检测电路接收到供电检测通知之后，控制单元调整定时并指示充电器检测电路开始充电器种类检测处理。

2. 发明授权

US08654493B2 Protection circuit and input/output circuit 有权
标题翻译：保护电路和输入/输出电路
公开(公告)号：US08654493B2
公开(公告)日：2014-02-18
申请号：US13436439
申请日：2012-03-30
申请人： Atsushi Wada , Kouichi Yamada , Shigeto Kobayashi
发明人： Atsushi Wada , Kouichi Yamada , Shigeto Kobayashi
IPC分类号： H02H3/20
CPC分类号： H02H3/207
摘要： A first voltage dividing circuit is connected between a power feeding line to feed power from an external power supply to an internal circuit, and a fixed potential to divide a voltage of the power feeding line. A first comparator compares a divided voltage, which has been divided by the first voltage dividing circuit, with a reference voltage, and outputs a signal to turn off a power switch inserted into the power feeding line when the divided voltage exceeds the reference voltage. A first transistor is connected between a first node where the divided voltage, which has been divided by the first voltage dividing circuit, is generated, and the fixed potential, and is turned on when the voltage of the first node exceeds a set voltage.
摘要翻译：第一分压电路连接在供电线路之间，以从外部电源向内部电路供电，以及固定电位以分压供电线的电压。第一比较器将已经被第一分压电路分压的分压与参考电压进行比较，并且当分压超过参考电压时，输出信号以关闭插入供电线的电源开关。第一晶体管连接在由第一分压电路分压的分压的固定电位的第一节点和第一节点的电压超过设定电压时导通。

3. 发明授权

US07667535B2 Amplifier circuit with input terminals thereof connected to sampling capacitors 失效
标题翻译：放大器电路，其输入端连接到采样电容器
公开(公告)号：US07667535B2
公开(公告)日：2010-02-23
申请号：US12073610
申请日：2008-03-07
申请人： Shigeto Kobayashi , Atsushi Wada
发明人： Shigeto Kobayashi , Atsushi Wada
IPC分类号： H03F1/02
CPC分类号： H03F3/45475 , H03F3/45928 , H03F2203/45101 , H03F2203/45551 , H03F2203/45586
摘要： Sampling capacitors are connected respectively to a pair of differential input terminals of an operational amplifier. The sampling capacitors sample input signals. Source terminals and drain terminals of dummy switches are connected respectively to paths connecting the operational amplifier and the sampling capacitors, so that a common-mode voltage of differential input voltages to the operational amplifier is adjusted by gate-channel capacitances.
摘要翻译：采样电容器分别连接到运算放大器的一对差分输入端子。采样电容器采样输入信号。虚拟开关的源极端子和漏极端子分别连接到连接运算放大器和采样电容器的路径，从而通过栅极沟道电容来调整运算放大器的差分输入电压的共模电压。

4. 发明授权

US07274320B2 Analog/digital converting device 有权
标题翻译：模/数转换器
公开(公告)号：US07274320B2
公开(公告)日：2007-09-25
申请号：US11506778
申请日：2006-08-21
申请人： Atsushi Wada , Kuniyuki Tani , Shigeto Kobayashi
发明人： Atsushi Wada , Kuniyuki Tani , Shigeto Kobayashi
IPC分类号： H03M1/12
CPC分类号： H01L29/1083 , H01L21/26513 , H01L21/26586 , H01L29/6659 , H01L29/7833 , H03M1/005 , H03M1/007 , H03M1/162 , H03M1/167
摘要： The present invention provides a widely general-purpose A/D converting device. The A/D converting device comprises multiple signal conversion units each of which include: an A/D converter for converting an input analog signal into a digital signal with a predetermined number of bits; a D/A converter for converting the output from the A/D converter into an analog signal; a subtracter for subtracting the output signal from the D/A converter, from the input analog signal; and an amplifier for amplifying the output signal from the subtracter. The A/D converting device has a configuration wherein the signal conversion units are arrayed in multiple rows and columns. This allows the user to realize an A/D converting device having various types and levels of performance by making various combinations of the signal conversion units without change of the layout of the signal conversion units.
摘要翻译：本发明提供广泛通用的A / D转换装置。 A / D转换装置包括多个信号转换单元，每个信号转换单元包括：A / D转换器，用于将输入的模拟信号转换成具有预定位数的数字信号; 用于将来自A / D转换器的输出转换为模拟信号的D / A转换器; 用于从输入模拟信号中减去D / A转换器的输出信号的减法器; 以及用于放大来自减法器的输出信号的放大器。 A / D转换装置具有其中信号转换单元以多行和列排列的配置。这允许用户通过进行信号转换单元的各种组合而不改变信号转换单元的布局来实现具有各种类型和级别的性能的A / D转换装置。

5. 发明授权

US07154426B2 Analog-digital converter with advanced scheduling 有权
标题翻译：具有高级调度的模数转换器
公开(公告)号：US07154426B2
公开(公告)日：2006-12-26
申请号：US11052093
申请日：2005-02-08
申请人： Kuniyuki Tani , Atsushi Wada , Shigeto Kobayashi
发明人： Kuniyuki Tani , Atsushi Wada , Shigeto Kobayashi
IPC分类号： H03M1/12
CPC分类号： H03M1/167 , H03M1/162
摘要： A first amplifier circuit samples and holds an input analog signal and outputs the same to a subtracting circuit. An AD converter circuit converts the input analog signal into a digital value so as to retrieve a predetermined number of bits. A DA converter circuit converts the digital value derived from conversion by the AD converter circuit into an analog value. A subtracter circuit subtracts an output analog signal from the DA converter circuit from the analog signal input via a first switch or the first amplifier circuit. A second amplifier circuit amplifies an output analog signal from the subtracter circuit by a gain of 2 and outputs the amplified signal. An input switching circuit controls the order of inputs, i.e. the input analog signal and a reference voltage, to voltage comparison elements constituting the Ad converter circuit.
摘要翻译：第一放大器电路对输入的模拟信号进行采样并保持，并将其输出到减法电路。 AD转换器电路将输入的模拟信号转换为数字值，以便检索预定数量的位。 DA转换器电路将由AD转换器电路的转换得到的数字值转换为模拟值。减法电路经由第一开关或第一放大器电路从DA转换器电路的模拟信号输入中减去输出模拟信号。第二放大器电路将来自减法器电路的输出模拟信号以2的增益放大并输出放大的信号。输入开关电路将输入的顺序，即输入模拟信号和参考电压控制到构成Ad转换器电路的电压比较元件。

6. 发明授权

US07095352B2 Analog-to-digital converter including a plurality of amplifier circuits 有权
标题翻译：模数转换器包括多个放大器电路
公开(公告)号：US07095352B2
公开(公告)日：2006-08-22
申请号：US11066498
申请日：2005-02-28
申请人： Kuniyuki Tani , Atsushi Wada , Shigeto Kobayashi
发明人： Kuniyuki Tani , Atsushi Wada , Shigeto Kobayashi
IPC分类号： H03M1/12
CPC分类号： H03M1/08 , H03F3/45183 , H03F3/45475 , H03F2203/45514 , H03F2203/45551 , H03M1/164
摘要： An AD converter includes therein a plurality of amplifier circuits such as first to fourth amplifier circuits. Among the plurality of amplifier circuits an amplifier circuit that requires higher accuracy is placed nearer to a power source. An amplifier circuit that receives the first input of an input analog signal is placed nearest to the power source. That is, the first amplifier circuit in the embodiment is disposed closest to the power source. The amplifier circuit that receives the first input of an input analog signal is disposed closest to the power source compared to the other amplifier circuits. The first amplifier circuit, the second amplifier circuit, the third amplifier circuit and the fourth amplifier circuit in the embodiment are placed in this order of how close to the power source.
摘要翻译： AD转换器包括多个放大器电路，例如第一至第四放大器电路。在多个放大器电路中，需要更高精度的放大器电路被放置得更靠近电源。接收输入模拟信号的第一输入的放大器电路被放置在最靠近电源的位置。也就是说，本实施例中的第一放大器电路设置成最靠近电源。接收输入模拟信号的第一输入的放大器电路与其他放大器电路相比最靠近电源设置。本实施例中的第一放大器电路，第二放大器电路，第三放大器电路和第四放大器电路以与电源接近的顺序放置。

7. 发明申请

US20050219109A1 Technique for comparing analog signal with reference voltage 有权
标题翻译：比较模拟信号与参考电压的技术
公开(公告)号：US20050219109A1
公开(公告)日：2005-10-06
申请号：US11067946
申请日：2005-03-01
申请人： Shigeto Kobayashi , Atsushi Wada
发明人： Shigeto Kobayashi , Atsushi Wada
IPC分类号： H03M1/14 , H03M1/12 , H03M1/16 , H03M1/18
CPC分类号： H03M1/186 , H03M1/167
摘要： The present invention provides a technique for reducing power consumption of an A/D converting device. An A/D converting device according to the present invention includes: multiple comparators each of which has a function for comparing input analog signals with a predetermined reference voltage; an A/D converter for converting the input analog signal into the digital signal with a predetermined number of bits using comparison results from the multiple comparators; a determining unit for determining which range the voltage of the input analog signal belongs to before the comparators comparing the input analog signal with the reference voltages; and a control unit for controlling power supply for the multiple comparators corresponding to the range determined by the determining unit. Thus, power is supplied only to the comparators necessary for this particular A/D conversion, thereby reducing power consumption.
摘要翻译：本发明提供一种用于降低A / D转换装置的功耗的技术。根据本发明的A / D转换装置包括：多个比较器，每个比较器具有将输入模拟信号与预定参考电压进行比较的功能; A / D转换器，用于使用来自多个比较器的比较结果将输入的模拟信号转换成具有预定位数的数字信号; 确定单元，用于在比较器将输入模拟信号与参考电压进行比较之前确定输入模拟信号的电压属于哪个范围; 以及控制单元，用于控制对应于由确定单元确定的范围的多个比较器的电源。因此，仅向该特定A / D转换所需的比较器供电，从而降低功耗。

8. 发明申请

US20050190095A1 Analog/digital converting device 有权
标题翻译：模/数转换器
公开(公告)号：US20050190095A1
公开(公告)日：2005-09-01
申请号：US11061668
申请日：2005-02-22
申请人： Atsushi Wada , Kuniyuki Tani , Shigeto Kobayashi
发明人： Atsushi Wada , Kuniyuki Tani , Shigeto Kobayashi
IPC分类号： H03M1/12 , H03M1/16 , H03M1/34 , H03M1/40 , H03M1/44
CPC分类号： H03M1/34 , H03M1/162 , H03M1/167 , H03M1/40 , H03M1/44
摘要： The present invention provides a widely general-purpose A/D converting device. The A/D converting device comprises multiple signal conversion units each of which include: an A/D converter for converting an input analog signal into a digital signal with a predetermined number of bits; a D/A converter for converting the output from the A/D converter into an analog signal; a subtracter for subtracting the output signal from the D/A converter, from the input analog signal; and an amplifier for amplifying the output signal from the subtracter. The A/D converting device has a configuration wherein the signal conversion units are arrayed in multiple rows and columns. This allows the user to realize an A/D converting device having various types and levels of performance by making various combinations of the signal conversion units without change of the layout of the signal conversion units.
摘要翻译：本发明提供广泛通用的A / D转换装置。 A / D转换装置包括多个信号转换单元，每个信号转换单元包括：A / D转换器，用于将输入的模拟信号转换成具有预定位数的数字信号; 用于将来自A / D转换器的输出转换为模拟信号的D / A转换器; 用于从输入模拟信号中减去D / A转换器的输出信号的减法器; 以及用于放大来自减法器的输出信号的放大器。 A / D转换装置具有其中信号转换单元以多行和列排列的配置。这允许用户通过进行信号转换单元的各种组合而不改变信号转换单元的布局来实现具有各种类型和级别的性能的A / D转换装置。

9. 发明申请

US20050068220A1 Analog-to-digital converter cyclically repeating AD coversion 有权
标题翻译：模数转换器循环重复AD转换
公开(公告)号：US20050068220A1
公开(公告)日：2005-03-31
申请号：US10950569
申请日：2004-09-28
申请人： Atsushi Wada , Shigeto Kobayashi , Kuniyuki Tani
发明人： Atsushi Wada , Shigeto Kobayashi , Kuniyuki Tani
IPC分类号： H03M1/44 , H03M1/14 , H03M1/16 , H03M1/34 , H03M1/60
CPC分类号： H03M1/167 , H03M1/162
摘要： An AD converter capable of achieving both an improved processing speed and a reduced circuit area in good balance. The AD converter pipelines analog-to-digital conversion by using a two-stage configuration consisting of a first conversion unit, or the prior stage, and a second conversion unit, or the subsequent stage. The first conversion unit is a conversion unit of noncyclic type. The second conversion unit is a conversion unit of cyclic type. The second conversion unit is given a conversion processing speed higher than that of the first conversion unit so that the second conversion unit performs cyclic processing twice while the first conversion unit performs conversion processing once.
摘要翻译： AD转换器能够以良好的平衡实现提高的处理速度和减小的电路面积。 AD转换器通过使用由第一转换单元或前一级以及第二转换单元或后续级组成的两级配置来管线模数转换。第一转换单元是非循环型转换单元。第二转换单元是循环型转换单元。给予第二转换单元的转换处理速度高于第一转换单元的转换处理速度，使得第二转换单元在第一转换单元执行转换处理一次的同时进行两次循环处理。

10. 发明授权

US09219362B2 Power supply circuit 有权
标题翻译：电源电路
公开(公告)号：US09219362B2
公开(公告)日：2015-12-22
申请号：US13008414
申请日：2011-01-18
申请人： Shigeto Kobayashi , Kouichi Yamada , Yoshitaka Ueda , Atsushi Wada
发明人： Shigeto Kobayashi , Kouichi Yamada , Yoshitaka Ueda , Atsushi Wada
IPC分类号： H02J1/10 , H02J1/08 , H03K19/0175 , G06F1/26 , H03L5/00
CPC分类号： H02J1/08 , G06F1/26 , H03K19/0175 , H03L5/00 , Y10T307/50
摘要： A power supply circuit generates the internal power supply voltage intVCC from a first power supply capable of supplying a first power supply voltage V1 and a second power supply capable of supplying a second power supply voltage V2, which is lower than the first power supply voltage V1. A first transistor TR1 is provided between the first power supply and an output node, whereas a second transistor TR2 is provided between the second power supply and the output node. A first supply unit supplies the inverted value of an output voltage of the first power supply or the inverted value of a voltage corresponding to the output voltage of the first power supply, to the gate input of the first transistor TR1. A second supply unit supplies the output voltage of the first power supply or the voltage corresponding to the output voltage of the first power supply, to the gate input of the second transistor TR2.
摘要翻译：电源电路从能够提供第一电源电压V1的第一电源和能够提供低于第一电源电压V1的第二电源电压V2的第二电源产生内部电源电压intVCC 。第一晶体管TR1设置在第一电源和输出节点之间，而第二晶体管TR2设置在第二电源和输出节点之间。第一供电单元将第一电源的输出电压的反相值或与第一电源的输出电压对应的电压的反相值提供给第一晶体管TR1的栅极输入。第二供应单元将第一电源的输出电压或与第一电源的输出电压相对应的电压提供给第二晶体管TR2的栅极输入。

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