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1. 发明授权

US08704565B2 Lock detection circuit, DLL circuit, and receiving circuit 有权
标题翻译：锁定检测电路，DLL电路和接收电路
公开(公告)号：US08704565B2
公开(公告)日：2014-04-22
申请号：US13601636
申请日：2012-08-31
申请人： Toyoaki Uo
发明人： Toyoaki Uo
IPC分类号： H03L7/06
CPC分类号： H03L7/095 , H03K5/153 , H03L7/0816
摘要： According to one embodiment, a lock detection circuit includes an initial state response circuit. The initial state response circuit is configured to output a third control signal to delay lines and cause a charge pump to stop an output of a second control signal when a pulse width modulation signal is not input, the third control signal is configured to control a delay amount to cause a delay amount of an entire delay circuit to be within one selected from a range in which an OVER signal generation circuit is operable, a range in which an UNDER signal generation circuit is operable, and a range that is greater than an UNDER threshold and less than an OVER threshold.
摘要翻译：根据一个实施例，锁定检测电路包括初始状态响应电路。初始状态响应电路被配置为当不输入脉宽调制信号时，将第三控制信号输出到延迟线并使电荷泵停止第二控制信号的输出，第三控制信号被配置为控制延迟相当于导致整个延迟电路的延迟量在从OVER信号产生电路可操作的范围内选择的范围内，UNDER信号产生电路可操作的范围以及大于UNDER的范围阈值并小于OVER阈值。

2. 发明申请

US20100309032A1 ANALOG-TO-DIGITAL CONVERTER, ANALOG-TO-DIGITAL CONVERSION METHOD, AND OPTICALLY COUPLED INSULATING DEVICE 有权
标题翻译：模拟数字转换器，模拟数字转换方法和光耦合绝缘装置
公开(公告)号：US20100309032A1
公开(公告)日：2010-12-09
申请号：US12796157
申请日：2010-06-08
申请人： Toyoaki Uo , Hisami Saitou , Atsushi Iwata , Yoshitaka Murasaka , Toshifumi Imamura
发明人： Toyoaki Uo , Hisami Saitou , Atsushi Iwata , Yoshitaka Murasaka , Toshifumi Imamura
IPC分类号： H03M1/00 , H03M3/00
CPC分类号： H03M3/34 , H03M3/43 , H03M3/454
摘要： An analog-to-digital converter includes a first switch circuit, a first integrator, a second switch circuit, a second integrator, a quantizer and a digital-to-analog converter. The first switch circuit receives an external analog signal, outputs the analog signal in reverse phase, and outputs the analog signal in positive phase. The first integrator receives and integrates the analog signal with cross-coupling. The second switch circuit outputs an output of the first integrator and a common mode output potential of the first integrator. The second integrator samples and integrates an output of the second switch circuit. The quantizer single-bit-quantizes an output of the second integrator to provide the output as a digital signal output. The digital-to-analog converter receives an output of the quantizer and provides the output as an analog signal output. Each of the first and second integrators receives and integrates an output of the digital-to-analog converter with cross-coupling.
摘要翻译：模数转换器包括第一开关电路，第一积分器，第二开关电路，第二积分器，量化器和数模转换器。第一开关电路接收外部模拟信号，反相输出模拟信号，并以正相输出模拟信号。第一个积分器接收和积分模拟信号与交叉耦合。第二开关电路输出第一积分器的输出和第一积分器的共模输出电位。第二个积分器对第二开关电路的输出进行采样和积分。量化器对第二积分器的输出进行单比特量化，以将输出提供为数字信号输出。数模转换器接收量化器的输出，并将输出提供为模拟信号输出。第一和第二积分器中的每一个接收和积分数模转换器的输出与交叉耦合。

3. 发明授权

US07635837B2 Optical receiving circuit 有权
标题翻译：光接收电路
公开(公告)号：US07635837B2
公开(公告)日：2009-12-22
申请号：US12047718
申请日：2008-03-13
申请人： Toyoaki Uo , Shigeyuki Sakura
发明人： Toyoaki Uo , Shigeyuki Sakura
IPC分类号： H01J40/14 , H03F3/08
CPC分类号： H03F3/087 , H03F3/45098
摘要： A light receiving circuit includes: a first transimpedance amplifier configured to convert an input signal to a voltage signal, the input signal being current-converted by a first photodiode; a second transimpedance amplifier connected to a light-shielded second photodiode, and being configured to output a reference voltage; a differential amplifier; a transconductance amplifier; a voltage source; and a conversion element. The differential amplifier has a first terminal and a second terminal, and amplifies a difference between the voltage signal inputted to the first terminal and a signal inputted to the second terminal. The transconductance amplifier receives as input a branch of the voltage signal and outputs a current signal to the second terminal. The voltage source superimposes an offset voltage on the output voltage of the second transimpedance amplifier. The conversion element is provided between the voltage source and the second terminal, and voltage-converts the current signal.
摘要翻译：光接收电路包括：第一跨阻抗放大器，被配置为将输入信号转换为电压信号，所述输入信号由第一光电二极管电流转换; 连接到光屏蔽的第二光电二极管的第二跨阻放大器，被配置为输出参考电压; 差分放大器; 跨导放大器; 电压源; 和转换元件。差分放大器具有第一端子和第二端子，并且放大输入到第一端子的电压信号与输入到第二端子的信号之间的差。跨导放大器作为输入接收电压信号的分支，并将电流信号输出到第二端子。电压源将偏移电压叠加在第二跨阻抗放大器的输出电压上。转换元件设置在电压源和第二端子之间，并对电流信号进行电压转换。

4. 发明授权

US07609980B2 Optical receiver and discrimination-threshold generating method 失效
标题翻译：光接收机和鉴别阈值生成方法
公开(公告)号：US07609980B2
公开(公告)日：2009-10-27
申请号：US10585458
申请日：2005-09-28
申请人： Masamichi Nogami , Junichi Nakagawa , Masaki Noda , Toyoaki Uo
发明人： Masamichi Nogami , Junichi Nakagawa , Masaki Noda , Toyoaki Uo
IPC分类号： H04B10/06
CPC分类号： H04L25/061 , H03G3/3084 , H04B10/6931 , H04B10/695
摘要： A first average detecting circuit detects an average of output signals of a pre-amplifying unit that controls an amplification gain based on a result of comparison between an output of the first average detecting circuit and a predetermined reference voltage. A discriminating circuit receives an output signal of the pre-amplifying unit as an input signal and performs a signal discrimination of the input signal based on a threshold. A second average detecting circuit detects an average of input signals to the discriminating circuit. The discriminating circuit receives an output of the second average detecting circuit as the threshold.
摘要翻译：第一平均检测电路基于第一平均检测电路的输出与预定参考电压之间的比较结果来检测控制放大增益的预放大单元的输出信号的平均值。识别电路接收预放大单元的输出信号作为输入信号，并且基于阈值执行输入信号的信号鉴别。第二平均检测电路检测到鉴别电路的输入信号的平均值。识别电路接收第二平均检测电路的输出作为阈值。

5. 发明授权

US08207879B2 Analog-to-digital converter, analog-to-digital conversion method, and optically coupled insulating device 有权
标题翻译：模拟 - 数字转换器，模数转换方法和光耦合绝缘器件
公开(公告)号：US08207879B2
公开(公告)日：2012-06-26
申请号：US12796157
申请日：2010-06-08
申请人： Toyoaki Uo , Hisami Saitou , Atsushi Iwata , Yoshitaka Murasaka , Toshifumi Imamura
发明人： Toyoaki Uo , Hisami Saitou , Atsushi Iwata , Yoshitaka Murasaka , Toshifumi Imamura
IPC分类号： H03M1/00
CPC分类号： H03M3/34 , H03M3/43 , H03M3/454
摘要： An analog-to-digital converter includes a first switch circuit, a first integrator, a second switch circuit, a second integrator, a quantizer and a digital-to-analog converter. The first switch circuit receives an external analog signal, outputs the analog signal in reverse phase, and outputs the analog signal in positive phase. The first integrator receives and integrates the analog signal with cross-coupling. The second switch circuit outputs an output of the first integrator and a common mode output potential of the first integrator. The second integrator samples and integrates an output of the second switch circuit. The quantizer single-bit-quantizes an output of the second integrator to provide the output as a digital signal output. The digital-to-analog converter receives an output of the quantizer and provides the output as an analog signal output. Each of the first and second integrators receives and integrates an output of the digital-to-analog converter with cross-coupling.
摘要翻译：模数转换器包括第一开关电路，第一积分器，第二开关电路，第二积分器，量化器和数模转换器。第一开关电路接收外部模拟信号，反相输出模拟信号，并以正相输出模拟信号。第一个积分器接收和积分模拟信号与交叉耦合。第二开关电路输出第一积分器的输出和第一积分器的共模输出电位。第二个积分器对第二开关电路的输出进行采样和积分。量化器对第二积分器的输出进行单比特量化，以将输出提供为数字信号输出。数模转换器接收量化器的输出，并将输出提供为模拟信号输出。第一和第二积分器中的每一个接收和积分数模转换器的输出与交叉耦合。

6. 发明申请

US20100200734A1 POWER SUPPLY CIRCUIT AND OPTICAL RECEIVING CIRCUIT 审中-公开
标题翻译：电源电路和光接收电路
公开(公告)号：US20100200734A1
公开(公告)日：2010-08-12
申请号：US12699209
申请日：2010-02-03
申请人： Toyoaki Uo
发明人： Toyoaki Uo
IPC分类号： H01L31/09 , G05F3/02
CPC分类号： H01L31/09 , G01J1/02 , G01J1/0228 , G01J1/44
摘要： A power supply circuit includes: a start-up circuit provided on a semiconductor substrate and configured to convert an optical signal to an electrical signal; and a bias circuit provided on the semiconductor substrate and being in a non-start-up state at power-on, the start-up circuit including: a p-type semiconductor region; and an n-type semiconductor region provided in contact with the p-type semiconductor region, the p-type semiconductor region being electrically connected to the bias circuit, the n-type semiconductor region being electrically connected to a power supply of the bias circuit, and the bias circuit entering a start-up state by a current flowing in the start-up circuit.
摘要翻译：电源电路包括：启动电路，设置在半导体衬底上并被配置为将光信号转换成电信号; 以及设置在所述半导体基板上并且在通电时处于非启动状态的偏置电路，所述启动电路包括：p型半导体区域; 以及与p型半导体区域接触地设置的n型半导体区域，p型半导体区域电连接到偏置电路，n型半导体区域电连接到偏置电路的电源，并且偏置电路通过在启动电路中流动的电流进入启动状态。

7. 发明申请

US20100019132A1 OPTICAL RECEIVER 有权
标题翻译：光接收机
公开(公告)号：US20100019132A1
公开(公告)日：2010-01-28
申请号：US12410721
申请日：2009-03-25
申请人： Toyoaki Uo
发明人： Toyoaki Uo
IPC分类号： H01J40/14
CPC分类号： H03F1/08 , H03F1/30 , H03F3/087 , H03F2200/447 , H03F2200/78
摘要： An optical-receiving circuit includes a first photodiode converting an optical signal into a current signal, a first trans-impedance amplifier to which a first power supply voltage of Vreg is supplied and which has a negative feedback resistor and to which the current signal is input and which outputs a voltage signal, and an output circuit to which the voltage signal output from the first trans-impedance amplifier is input and which outputs a voltage signal to the outside. A temperature coefficient of a voltage of (Vreg-MVbe) is positive, in which Vbe is a base-emitter voltage of a transistor contained in the first trans-impedance amplifier and M is a coefficient that does not depend on the temperature.
摘要翻译：光接收电路包括将光信号转换成电流信号的第一光电二极管，第一跨阻放大器，其中Vreg的第一电源电压被提供给第一反相放大器，并且具有负反馈电阻器，并且输入电流信号并且输出电压信号;输出电路，从第一跨阻抗放大器输出的电压信号输入到该输出电路，并向外部输出电压信号。（Vreg-MVbe）的电压的温度系数为正，其中Vbe是包含在第一跨阻抗放大器中的晶体管的基极 - 发射极电压，M是不依赖于温度的系数。

8. 发明申请

US20080230683A1 LIGHT RECEIVING CIRCUIT 有权
标题翻译：光接收电路
公开(公告)号：US20080230683A1
公开(公告)日：2008-09-25
申请号：US12047718
申请日：2008-03-13
申请人： Toyoaki Uo , Shigeyuki Sakura
发明人： Toyoaki Uo , Shigeyuki Sakura
IPC分类号： H03F3/08
CPC分类号： H03F3/087 , H03F3/45098
摘要： A light receiving circuit includes: a first transimpedance amplifier configured to convert an input signal to a voltage signal, the input signal being current-converted by a first photodiode; a second transimpedance amplifier connected to a light-shielded second photodiode, and being configured to output a reference voltage; a differential amplifier; a transconductance amplifier; a voltage source; and a conversion element. The differential amplifier has a first terminal and a second terminal, and amplifies a difference between the voltage signal inputted to the first terminal and a signal inputted to the second terminal. The transconductance amplifier receives as input a branch of the voltage signal and outputs a current signal to the second terminal. The voltage source superimposes an offset voltage on the output voltage of the second transimpedance amplifier. The conversion element is provided between the voltage source and the second terminal, and voltage-converts the current signal.
摘要翻译：光接收电路包括：第一跨阻抗放大器，被配置为将输入信号转换为电压信号，所述输入信号由第一光电二极管电流转换; 连接到光屏蔽的第二光电二极管的第二跨阻放大器，被配置为输出参考电压; 差分放大器; 跨导放大器; 电压源; 和转换元件。差分放大器具有第一端子和第二端子，并且放大输入到第一端子的电压信号与输入到第二端子的信号之间的差。跨导放大器作为输入接收电压信号的分支，并将电流信号输出到第二端子。电压源将偏移电压叠加在第二跨阻抗放大器的输出电压上。转换元件设置在电压源和第二端子之间，并对电流信号进行电压转换。

9. 发明授权

US08761599B2 Semiconductor device, method for testing same and transmitting circuit 有权
标题翻译：半导体器件，测试方法和发射电路
公开(公告)号：US08761599B2
公开(公告)日：2014-06-24
申请号：US13424338
申请日：2012-03-19
申请人： Toyoaki Uo
发明人： Toyoaki Uo
IPC分类号： H04B17/00
CPC分类号： H04B10/802
摘要： According to an embodiment, a semiconductor device includes an analog/digital conversion unit, a pulse width modulation unit outputting a transmission signal, the transmission signal being a pulse pattern corresponding to a digital signal output from the analog/digital conversion unit, a reference signal generation unit generating a reference signal, the reference signal being a fixed pulse pattern. The device includes a first control unit selecting one of the transmission signal and the reference signal, a light emitting element drive unit outputting a drive current based on the transmission signal or the reference signal, a light emitting element driven by the light emitting element drive unit. The device includes an optical receiving unit converting the optical signal into a voltage signal, and a demodulation unit demodulating the voltage signal into a digital signal based on the transmission signal or the reference signal.
摘要翻译：根据实施例，半导体器件包括模拟/数字转换单元，输出发送信号的脉宽调制单元，作为与从模拟/数字转换单元输出的数字信号相对应的脉冲模式的发送信号，参考信号生成单元生成参考信号，参考信号是固定的脉冲图形。该装置包括选择发送信号和参考信号之一的第一控制单元，基于发送信号或参考信号输出驱动电流的发光元件驱动单元，由发光元件驱动单元驱动的发光元件。该装置包括将光信号转换为电压信号的光接收单元，以及基于发送信号或参考信号将电压信号解调为数字信号的解调单元。

10. 发明授权

US08447185B2 Optical transmitter, optical receiver, and optically coupled insulating device 有权
标题翻译：光发射机，光接收机和光耦合绝缘装置
公开(公告)号：US08447185B2
公开(公告)日：2013-05-21
申请号：US13015830
申请日：2011-01-28
申请人： Toyoaki Uo
发明人： Toyoaki Uo
IPC分类号： H04B10/00
CPC分类号： H04B10/40 , H04B10/00
摘要： According to one embodiment, an optically coupled insulating device includes an optical transmitter and an optical receiver. The optical transmitter includes an analog-to-digital converter, an encoder, a transmitting controller, and an electrooptical transducer. The encoder is configured to generate a transmitting signal by superimposing an output of the analog-to-digital converter onto a signal based on a clock signal. The transmitting signal is encoded to have an average duty ratio of more than zero and less than one. The transmitting controller is configured to output one of the transmitting signal and the output of the analog-to-digital converter depending on an input level of the analog signal. The electrooptical transducer is configured to convert an output of the transmitting controller into an optical signal. The optical receiver includes an optoelectrical transducer, a decoder, and a receiving controller.
摘要翻译：根据一个实施例，光耦合绝缘装置包括光发射器和光接收器。光发射机包括模拟 - 数字转换器，编码器，发射控制器和电光传感器。编码器被配置为通过基于时钟信号将模数转换器的输出叠加到信号上来产生发送信号。发送信号被编码为具有大于零且小于1的平均占空比。发送控制器被配置为根据模拟信号的输入电平输出模拟 - 数字转换器的发送信号和输出中的一个。电光传感器被配置为将发射控制器的输出转换为光信号。光接收器包括光电换能器，解码器和接收控制器。

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