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1. 发明申请

US20120241599A1 VOLTAGE OUTPUT CIRCUIT, CONNECTOR MODULE, AND ACTIVE CABLE 有权
标题翻译：电压输出电路，连接器模块和有源电缆
公开(公告)号：US20120241599A1
公开(公告)日：2012-09-27
申请号：US13308646
申请日：2011-12-01
申请人： Hiroshi Uemura , Ippei Akita , Tetsuro Itakura , Hideto Furuyama
发明人： Hiroshi Uemura , Ippei Akita , Tetsuro Itakura , Hideto Furuyama
IPC分类号： H01J40/12 , H03L5/00
CPC分类号： H04B10/69 , H04B10/25
摘要： According to one embodiment, a circuit comprises a first resistor configured to have one end to which a first voltage is input and the other end which outputs a second voltage and a first amplifier configured to have an inverting input connected to the other end of the first resistor and a noninverting input to which a third voltage is input. The circuit further comprises a first capacitor configured to have one end to which an output of the first amplifier is input and the other end to which the other end of the first resistor is connected. An output of the first amplifier or an output of a second amplifier connected to the other end of the first resistor is a fourth voltage. In the circuit, the first resistor and a mirror capacitance composed of the first capacitor and the first amplifier constitute a low-pass filter.
摘要翻译：根据一个实施例，电路包括第一电阻器，其被配置为具有输入第一电压的一端和输出第二电压的另一端和配置成具有连接到第一电压的另一端的反相输入的第一放大器电阻器和输入第三电压的同相输入端。电路还包括第一电容器，其被配置为具有输入第一放大器的输出的一端和第一电阻器的另一端连接到的另一端。连接到第一电阻器的另一端的第一放大器的输出或第二放大器的输出是第四电压。在该电路中，由第一电容器和第一放大器组成的第一电阻器和反射镜电容器构成低通滤波器。

2. 发明申请

US20100151800A1 COMMUNICATION DEVICE AND COMMUNICATION METHOD 审中-公开
标题翻译：通信设备和通信方法
公开(公告)号：US20100151800A1
公开(公告)日：2010-06-17
申请号：US12558784
申请日：2009-09-14
申请人： Ippei Akita , Takafumi Yamaji , Akihide Sai
发明人： Ippei Akita , Takafumi Yamaji , Akihide Sai
IPC分类号： H04B1/40 , H04B1/26
CPC分类号： H04B1/109 , H04W52/0238 , Y02D70/40
摘要： A communication device includes: a first oscillator to generate a local signal based on a control signal for regulating at least one of phase oise and jitter in the local signal; a frequency converter to convert a first signal having first frequency to a second signal having second frequency by using the local signal; a filter to remove undesired signal component from the second signal and output a third signal; and a controller to generate the control signal based on the second signal and the third signal.
摘要翻译：通信设备包括：第一振荡器，用于基于用于调节本地信号中的相位噪声和抖动中的至少一个的控制信号来产生本地信号; 频率转换器，通过使用本地信号将具有第一频率的第一信号转换成具有第二频率的第二信号; 滤波器，用于从所述第二信号中去除不需要的信号分量并输出第三信号; 以及控制器，用于基于第二信号和第三信号产生控制信号。

3. 发明申请

US20120176263A1 CURRENT SWITCH CIRCUIT AND DA CONVERTER 审中-公开
标题翻译：电流开关电路和DA转换器
公开(公告)号：US20120176263A1
公开(公告)日：2012-07-12
申请号：US13237260
申请日：2011-09-20
申请人： Shigeo Imai , Ippei Akita , Tetsuro Itakura
发明人： Shigeo Imai , Ippei Akita , Tetsuro Itakura
IPC分类号： H03M1/66 , H03K17/16
CPC分类号： H03K19/00384 , H03M1/0641 , H03M1/745
摘要： According to one embodiment, a first switch transistor and a second switch transistor convert an input current to a first current and a second current by performing a switching operation on the basis of differential input voltages, respectively. An input current source supplies the input current to the first and second switch transistors. A noise current generating circuit generates a dummy current to simulate a noise current flowing through the input current source. A third switch transistor and a fourth switch transistor convert the dummy current to a third current and a fourth current by performing a switching operation on the basis of differential input voltages and negatively superimposes the third current and the fourth current on the first and second currents, respectively.
摘要翻译：根据一个实施例，第一开关晶体管和第二开关晶体管分别通过基于差分输入电压执行开关操作将输入电流转换为第一电流和第二电流。输入电流源将输入电流提供给第一和第二开关晶体管。噪声电流产生电路产生虚拟电流以模拟流过输入电流源的噪声电流。第三开关晶体管和第四开关晶体管通过基于差分输入电压执行开关操作将虚拟电流转换为第三电流和第四电流，并将第三电流和第四电流负向叠加在第一和第二电流上，分别。

4. 发明授权

US08835830B2 Voltage output circuit, connector module, and active cable 有权
标题翻译：电压输出电路，连接器模块和有源电缆
公开(公告)号：US08835830B2
公开(公告)日：2014-09-16
申请号：US13308646
申请日：2011-12-01
申请人： Hiroshi Uemura , Ippei Akita , Tetsuro Itakura , Hideto Furuyama
发明人： Hiroshi Uemura , Ippei Akita , Tetsuro Itakura , Hideto Furuyama
IPC分类号： H01J40/12 , H04B10/25 , H04B10/69
CPC分类号： H04B10/69 , H04B10/25
摘要： According to one embodiment, a circuit comprises a first resistor configured to have one end to which a first voltage is input and the other end which outputs a second voltage and a first amplifier configured to have an inverting input connected to the other end of the first resistor and a noninverting input to which a third voltage is input. The circuit further comprises a first capacitor configured to have one end to which an output of the first amplifier is input and the other end to which the other end of the first resistor is connected. An output of the first amplifier or an output of a second amplifier connected to the other end of the first resistor is a fourth voltage. In the circuit, the first resistor and a mirror capacitance composed of the first capacitor and the first amplifier constitute a low-pass filter.
摘要翻译：根据一个实施例，电路包括第一电阻器，其被配置为具有输入第一电压的一端和输出第二电压的另一端和配置成具有连接到第一电压的另一端的反相输入的第一放大器电阻器和输入第三电压的同相输入端。电路还包括第一电容器，其被配置为具有输入第一放大器的输出的一端和第一电阻器的另一端连接到的另一端。连接到第一电阻器的另一端的第一放大器的输出或第二放大器的输出是第四电压。在该电路中，由第一电容器和第一放大器组成的第一电阻器和反射镜电容器构成低通滤波器。

5. 发明授权

US08350740B2 A/D conversion circuit and receiver 失效
标题翻译： A / D转换电路和接收器
公开(公告)号：US08350740B2
公开(公告)日：2013-01-08
申请号：US13035367
申请日：2011-02-25
申请人： Ippei Akita
发明人： Ippei Akita
IPC分类号： H03M1/10 , H03M1/12
CPC分类号： H03M1/1245 , G11C27/024 , H03M1/1215 , H03M1/468
摘要： The A/D conversion circuit according to one aspect of the present invention includes: a first sampling capacitor; a first sampling switch; a buffer circuit; a second sampling capacitor; a second sampling switch; a first converter; a first reset switch; and a second reset switch. The first and second sampling switches are turned on to track voltage to the first sampling capacitor and to sample buffer voltage to the second sampling capacitor through the buffer circuit. The first sampling switch is turned off to hold voltage. The second sampling switch is turned off so that the first converter reads the voltage from the second sampling capacitor to perform A/D conversion thereon. After that, the first and second reset switches reset the first and second sampling capacitors.
摘要翻译：根据本发明的一个方面的A / D转换电路包括：第一采样电容器; 第一采样开关; 一个缓冲电路; 第二采样电容器; 第二采样开关; 第一转换器第一复位开关; 和第二复位开关。第一和第二采样开关导通以跟踪第一采样电容器的电压，并通过缓冲电路对第二采样电容器采样缓冲器电压。第一个采样开关关闭以保持电压。关闭第二采样开关，使得第一转换器读取来自第二采样电容器的电压，以对其进行A / D转换。之后，第一和第二复位开关复位第一和第二采样电容器。

6. 发明申请

US20120071122A1 A/D CONVERSION CIRCUIT AND RECEIVER 失效
标题翻译： A / D转换电路和接收器
公开(公告)号：US20120071122A1
公开(公告)日：2012-03-22
申请号：US13035367
申请日：2011-02-25
申请人： Ippei AKITA
发明人： Ippei AKITA
IPC分类号： G06F3/033 , H03M1/12
CPC分类号： H03M1/1245 , G11C27/024 , H03M1/1215 , H03M1/468
摘要： The A/D conversion circuit according to one aspect of the present invention includes: a first sampling capacitor; a first sampling switch; a buffer circuit; a second sampling capacitor; a second sampling switch; a first converter; a first reset switch; and a second reset switch. The first and second sampling switches are turned on to track voltage to the first sampling capacitor and to sample buffer voltage to the second sampling capacitor through the buffer circuit. The first sampling switch is turned off to hold voltage. The second sampling switch is turned off so that the first converter reads the voltage from the second sampling capacitor to perform A/D conversion thereon. After that, the first and second reset switches reset the first and second sampling capacitors.
摘要翻译：根据本发明的一个方面的A / D转换电路包括：第一采样电容器; 第一采样开关; 一个缓冲电路; 第二采样电容器; 第二采样开关; 第一转换器第一复位开关; 和第二复位开关。第一和第二采样开关导通以跟踪第一采样电容器的电压，并通过缓冲电路对第二采样电容器采样缓冲器电压。第一个采样开关关闭以保持电压。关闭第二采样开关，使得第一转换器读取来自第二采样电容器的电压，以对其进行A / D转换。之后，第一和第二复位开关复位第一和第二采样电容器。

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