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公开(公告)号：US08796988B2
公开(公告)日：2014-08-05
申请号：US13430182
申请日：2012-03-26
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。
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公开(公告)号：US09077195B2
公开(公告)日：2015-07-07
申请号：US13430237
申请日：2012-03-26
CPC分类号： H02J7/0055 , H02J2007/0001
摘要： A power supply detection circuit detects power feeding to a VBUS terminal from the outside. A charger detection circuit specifies the kind of charger by detecting the voltages of a DP terminal and a DM terminal. The charger detection circuit detects open, pull-up, pull-down of at least one of the DP terminal and the DM terminal or formation of a short circuit between both the terminals.
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检测DP端子和DM端子的电压来指定充电器的种类。 充电器检测电路检测DP端子和DM端子中的至少一个的开路，上拉，下拉或在两个端子之间形成短路。
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公开(公告)号：US20130155258A1
公开(公告)日：2013-06-20
申请号：US13687018
申请日：2012-11-28
申请人： Atsushi Wada , Hajime Mizukami
发明人： Atsushi Wada , Hajime Mizukami
IPC分类号： H04N17/00
CPC分类号： H04N17/00 , G09G5/006 , G09G2370/22
摘要： A determination circuit includes a terminal configured to be connected to one end of a cable having an other end connected to a display device so that an image corresponding to an inputted video signal is displayed on the display device, a voltage detection unit configured to detect a terminal voltage at the terminal, and a determination unit configured to determine whether the cable is disconnected or not between the terminal and the display device based on a predetermined value corresponding to a minimum level of a synchronizing signal contained in the video signal to be generated at the terminal and a minimum value of the terminal voltage detected when the synchronizing signal is inputted to the terminal, after the cable is connected between the terminal and the display device.
摘要翻译： 确定电路包括：端子，其被配置为连接到具有连接到显示装置的另一端的电缆的一端，使得与所输入的视频信号相对应的图像显示在所述显示装置上;电压检测单元，被配置为检测 终端电压的终端电压，以及确定单元，被配置为基于与包含在将要生成的视频信号中的同步信号的最小电平相对应的预定值来确定终端和显示设备之间的电缆是否断开 在电缆连接在终端和显示装置之间时，终端和同步信号输入到终端时检测到的终端电压的最小值。
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公开(公告)号：US09223727B2
公开(公告)日：2015-12-29
申请号：US13436455
申请日：2012-03-30
申请人： Atsushi Wada , Hajime Mizukami
发明人： Atsushi Wada , Hajime Mizukami
CPC分类号： G06F13/00 , G06F13/4072 , G06F2213/0016 , H04N7/00 , H04N7/104
摘要： An identification terminal voltage detecting circuit detects a voltage of an identification terminal. A video switch is inserted into a signal line connecting a video circuit included in an internal circuit and the identification terminal. When a voltage representing that a video cable is connected to a connector is detected, and then a voltage representing that the video cable is terminated with specified impedance is detected, the control unit turns on the video switch.
摘要翻译： 识别端电压检测电路检测识别终端的电压。 将视频开关插入连接内部电路中包括的视频电路和识别终端的信号线。 当检测到表示视频电缆连接到连接器的电压时，检测出表示视频电缆以指定阻抗终止的电压，则控制单元接通视频开关。
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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。
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6.发明授权Amplifier circuit with input terminals thereof connected to sampling capacitors 失效放大器电路，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。
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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。
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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
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。
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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。
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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
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。
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