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1. 发明授权

US08093543B2 Voltage generator circuit having a resistor ladder circuit and a switch control circuit allowing a variation of the slope of a given ramp wave, digital-to-analog converter, ramp generator circuit, analog-to-digital converter, image sensor system, and method for generating voltage 有权
标题翻译：电压发生器电路具有电阻梯形电路和开关控制电路，允许给定斜波波形的斜率变化，数模转换器，斜坡发生器电路，模数转换器，图像传感器系统和方法产生电压
公开(公告)号：US08093543B2
公开(公告)日：2012-01-10
申请号：US13012600
申请日：2011-01-24
申请人： Yuusuke Yamaoka , Kazuko Nishimura
发明人： Yuusuke Yamaoka , Kazuko Nishimura
IPC分类号： H01J40/14
CPC分类号： H03M1/664 , H03K4/026 , H03K7/08 , H03M1/123 , H03M1/56 , H03M1/58 , H04N5/378
摘要： A resistor-ladder voltage generator circuit is provided, which controls so that k switches among consecutive (k+1) switches out of a plurality of switches connected to the resistor ladder circuit are simultaneously set to an ON state, and which temporally switches the value of k. This allows voltage waveforms having different slopes to be arbitrarily obtained, ranging from a voltage waveform having a small slope to a voltage waveform having a large slope, thereby improving the resolution of a generated voltage waveform without increasing the numbers of resistors and switches, while A/D conversion time is not increased even if the number of bits is increased. In addition, by using this voltage generator circuit as a ramp generator circuit, and by dynamically switching the slope of the ramp wave, acceleration of an image sensor is achieved.
摘要翻译：提供了一种电阻梯形电压发生器电路，其控制使得连接到电阻梯形电路的多个开关中的连续（k + 1）个开关中的k个开关同时被设置为导通状态，并且其在时间上切换值的k。这允许从具有小斜率的电压波形到具有大斜率的电压波形的任意地获得具有不同斜率的电压波形，从而在不增加电阻器和开关的数量的情况下提高所产生的电压波形的分辨率，而A 即使比特数增加，D / D转换时间也不会增加。此外，通过使用该电压发生器电路作为斜坡发生电路，通过动态切换斜波的斜率，实现图像传感器的加速。

2. 发明授权

US07767953B2 Voltage generator, analog-to-digital converter, and image sensor system 有权
标题翻译：电压发生器，模数转换器和图像传感器系统
公开(公告)号：US07767953B2
公开(公告)日：2010-08-03
申请号：US12114310
申请日：2008-05-02
申请人： Yuusuke Yamaoka
发明人： Yuusuke Yamaoka
IPC分类号： H01J40/14 , H03M1/78
CPC分类号： H03K4/023 , H03M1/123 , H03M1/204 , H03M1/56 , H03M1/661
摘要： A ladder resistor circuit generates a plurality of different reference voltages. A plurality of switching circuits correspond to a plurality of taps of the ladder resistor circuit. Each of the plurality of switching circuits is connected at one end to a corresponding one of the taps and connected at the other end to an output node, and has a variable on-resistance value. A control circuit selects continuous n (where n is any integer equal to or greater than 2) of the plurality of switching circuits, turns the n switching circuits on, and sets the respective on-resistance values of the n switching circuits.
摘要翻译：梯形电阻电路产生多个不同的参考电压。多个开关电路对应于梯形电阻电路的多个抽头。多个开关电路中的每一个在一端连接到对应的一个抽头并在另一端连接到输出节点，并具有可变的导通电阻值。控制电路选择多个开关电路的连续n（其中n是等于或大于2的整数），使n个开关电路导通，并设置n个开关电路的各自的导通电阻值。

3. 发明授权

US07639997B2 Radio communication system 失效
标题翻译：无线通信系统
公开(公告)号：US07639997B2
公开(公告)日：2009-12-29
申请号：US11712472
申请日：2007-03-01
申请人： Manabu Watanabe , Yuusuke Yamaoka
发明人： Manabu Watanabe , Yuusuke Yamaoka
IPC分类号： H04B1/06
CPC分类号： H04B1/713 , H04L27/2647
摘要： The communication performance of a radio communication system is improved while keeping short time necessary for attaining synchronization. A low noise amplifier is selectively provided with one of an input signal supplied from the outside of the system and an oscillation output signal of a local oscillator. A mixer integrates the oscillation output signal of the local oscillator and an output signal of the low noise amplifier. An intensity discriminating unit discriminates the signal intensity of an output of the mixer. In a first state, the low noise amplifier amplifies the oscillation output signal of the local oscillator, and a control unit learns a frequency band of the low noise amplifier for maximizing the signal intensity on the basis of the discrimination result of the intensity discriminating unit. In a second state, the low noise amplifier is set to the frequency band learned in the first state and amplifies the input signal.
摘要翻译：提高无线电通信系统的通信性能，同时保持实现同步所需的短时间。低噪声放大器选择性地提供从系统外部提供的输入信号和本地振荡器的振荡输出信号之一。混频器将本地振荡器的振荡输出信号和低噪声放大器的输出信号进行积分。强度鉴别单元鉴别混频器输出的信号强度。在第一状态下，低噪声放大器放大本地振荡器的振荡输出信号，并且控制单元基于强度判别单元的鉴别结果来学习低噪声放大器的频带以最大化信号强度。在第二状态下，将低噪声放大器设置为在第一状态下学习的频带，并放大输入信号。

4. 发明申请

US20110114827A1 VOLTAGE GENERATOR CIRCUIT, DIGITAL-TO-ANALOG CONVERTER, RAMP GENERATOR CIRCUIT, ANALOG-TO-DIGITAL CONVERTER, IMAGE SENSOR SYSTEM, AND METHOD FOR GENERATING VOLTAGE 有权
标题翻译：电压发生器电路，数字到模拟转换器，放大器发生器电路，模拟数字转换器，图像传感器系统和产生电压的方法
公开(公告)号：US20110114827A1
公开(公告)日：2011-05-19
申请号：US13012600
申请日：2011-01-24
申请人： Yuusuke YAMAOKA , Kazuko Nishimura
发明人： Yuusuke YAMAOKA , Kazuko Nishimura
IPC分类号： H01J40/14 , H03M1/78 , H03M1/34 , H03K17/00
CPC分类号： H03M1/664 , H03K4/026 , H03K7/08 , H03M1/123 , H03M1/56 , H03M1/58 , H04N5/378
摘要： A resistor-ladder voltage generator circuit is provided, which controls so that k switches among consecutive (k+1) switches out of a plurality of switches connected to the resistor ladder circuit are simultaneously set to an ON state, and which temporally switches the value of k. This allows voltage waveforms having different slopes to be arbitrarily obtained, ranging from a voltage waveform having a small slope to a voltage waveform having a large slope, thereby improving the resolution of a generated voltage waveform without increasing the numbers of resistors and switches, while A/D conversion time is not increased even if the number of bits is increased. In addition, by using this voltage generator circuit as a ramp generator circuit, and by dynamically switching the slope of the ramp wave, acceleration of an image sensor is achieved.
摘要翻译：提供了一种电阻梯形电压发生器电路，其控制使得连接到电阻梯形电路的多个开关中的连续（k + 1）个开关中的k个开关同时被设置为导通状态，并且其在时间上切换值的k。这允许从具有小斜率的电压波形到具有大斜率的电压波形的任意地获得具有不同斜率的电压波形，从而在不增加电阻器和开关的数量的情况下提高所产生的电压波形的分辨率，而A 即使比特数增加，D / D转换时间也不会增加。此外，通过使用该电压发生器电路作为斜坡发生电路，通过动态切换斜波的斜率，实现图像传感器的加速。

5. 发明授权

US07304595B2 Current output circuit 有权
标题翻译：电流输出电路
公开(公告)号：US07304595B2
公开(公告)日：2007-12-04
申请号：US11491032
申请日：2006-07-24
申请人： Yuusuke Yamaoka
发明人： Yuusuke Yamaoka
IPC分类号： H03M1/66
CPC分类号： H03K19/01707 , H03M1/745
摘要： A capacitor having a capacitance value corresponding to the size of an output current generating transistor is connected between the gate terminal of the output current generating transistor and the input terminal of an inverter circuit.
摘要翻译：具有与输出电流产生晶体管的大小对应的电容值的电容器连接在输出电流产生晶体管的栅极端子与反相器电路的输入端子之间。

6. 发明申请

US20070207764A1 Radio communication system 失效
标题翻译：无线通信系统
公开(公告)号：US20070207764A1
公开(公告)日：2007-09-06
申请号：US11712472
申请日：2007-03-01
申请人： Manabu Watanabe , Yuusuke Yamaoka
发明人： Manabu Watanabe , Yuusuke Yamaoka
IPC分类号： H04B1/16
CPC分类号： H04B1/713 , H04L27/2647
摘要： The communication performance of a radio communication system is improved while keeping short time necessary for attaining synchronization. A low noise amplifier is selectively provided with one of an input signal supplied from the outside of the system and an oscillation output signal of a local oscillator. A mixer integrates the oscillation output signal of the local oscillator and an output signal of the low noise amplifier. An intensity discriminating unit discriminates the signal intensity of an output of the mixer. In a first state, the low noise amplifier amplifies the oscillation output signal of the local oscillator, and a control unit learns a frequency band of the low noise amplifier for maximizing the signal intensity on the basis of the discrimination result of the intensity discriminating unit. In a second state, the low noise amplifier is set to the frequency band learned in the first state and amplifies the input signal.
摘要翻译：提高无线电通信系统的通信性能，同时保持实现同步所需的短时间。低噪声放大器选择性地提供从系统外部提供的输入信号和本地振荡器的振荡输出信号之一。混频器将本地振荡器的振荡输出信号和低噪声放大器的输出信号进行积分。强度鉴别单元鉴别混频器输出的信号强度。在第一状态下，低噪声放大器放大本地振荡器的振荡输出信号，并且控制单元基于强度判别单元的鉴别结果来学习低噪声放大器的频带以最大化信号强度。在第二状态下，将低噪声放大器设置为在第一状态下学习的频带，并放大输入信号。

7. 发明授权

US08188903B2 Ramp wave output circuit, analog/digital conversion circuit, and camera 有权
标题翻译：斜坡波输出电路，模拟/数字转换电路和摄像机
公开(公告)号：US08188903B2
公开(公告)日：2012-05-29
申请号：US12810272
申请日：2008-11-25
申请人： Yuusuke Yamaoka , Hiroshi Kimura , Masahiro Higuchi
发明人： Yuusuke Yamaoka , Hiroshi Kimura , Masahiro Higuchi
IPC分类号： H03M1/56
CPC分类号： H03K4/08 , H03K5/082 , H03K2005/00293
摘要： A ramp wave output circuit includes a ramp wave generation circuit generating a ramp wave, and a low-pass filter having a variable cutoff frequency, which receives the ramp wave. The low-pass filter operates at a first cutoff frequency for a predetermined time period after the receipt of the ramp wave, and at a second cutoff frequency, which is larger than the first cutoff frequency, after the predetermined time period has passed.
摘要翻译：斜坡波输出电路包括产生斜坡波的斜坡波生成电路和接收斜坡波的具有可变截止频率的低通滤波器。低通滤波器在接收到斜波之后的预定时间段内以第一截止频率操作，并且在经过预定时间段之后，在大于第一截止频率的第二截止频率下操作。

8. 发明申请

US20100271248A1 RAMP WAVE OUTPUT CIRCUIT, ANALOG/DIGITAL CONVERSION CIRCUIT, AND CAMERA 有权
标题翻译： RAMP波形输出电路，模拟/数字转换电路和摄像机
公开(公告)号：US20100271248A1
公开(公告)日：2010-10-28
申请号：US12810272
申请日：2008-11-25
申请人： Yuusuke Yamaoka , Hiroshi Kimura , Masahiro Higuchi
发明人： Yuusuke Yamaoka , Hiroshi Kimura , Masahiro Higuchi
IPC分类号： H03M1/12 , H03K4/06
CPC分类号： H03K4/08 , H03K5/082 , H03K2005/00293
摘要： A ramp wave output circuit includes a ramp wave generation circuit generating a ramp wave, and a low-pass filter having a variable cutoff frequency, which receives the ramp wave. The low-pass filter operates at a first cutoff frequency for a predetermined time period after the receipt of the ramp wave, and at a second cutoff frequency, which is larger than the first cutoff frequency, after the predetermined time period has passed.
摘要翻译：斜坡波输出电路包括产生斜坡波的斜坡波生成电路和接收斜坡波的具有可变截止频率的低通滤波器。低通滤波器在接收到斜波之后的预定时间段内以第一截止频率操作，并且在经过预定时间段之后，在大于第一截止频率的第二截止频率下操作。

9. 发明申请

US20080296473A1 VOLTAGE GENERATOR, ANALOG-TO-DIGITAL CONVERTER, AND IMAGE SENSOR SYSTEM 有权
标题翻译：电压发生器，模拟数字转换器和图像传感器系统
公开(公告)号：US20080296473A1
公开(公告)日：2008-12-04
申请号：US12114310
申请日：2008-05-02
申请人： Yuusuke YAMAOKA
发明人： Yuusuke YAMAOKA
IPC分类号： G01J1/32 , G05F3/16
CPC分类号： H03K4/023 , H03M1/123 , H03M1/204 , H03M1/56 , H03M1/661
摘要： A ladder resistor circuit generates a plurality of different reference voltages. A plurality of switching circuits correspond to a plurality of taps of the ladder resistor circuit. Each of the plurality of switching circuits is connected at one end to a corresponding one of the taps and connected at the other end to an output node, and has a variable on-resistance value. A control circuit selects continuous n (where n is any integer equal to or greater than 2) of the plurality of switching circuits, turns the n switching circuits on, and sets the respective on-resistance values of the n switching circuits.
摘要翻译：梯形电阻电路产生多个不同的参考电压。多个开关电路对应于梯形电阻电路的多个抽头。多个开关电路中的每一个在一端连接到对应的一个抽头并在另一端连接到输出节点，并具有可变的导通电阻值。控制电路选择多个开关电路的连续n（其中n是等于或大于2的整数），使n个开关电路导通，并设置n个开关电路的各自的导通电阻值。

10. 发明申请

US20070057831A1 Current output circuit 有权
公开(公告)号：US20070057831A1
公开(公告)日：2007-03-15
申请号：US11491032
申请日：2006-07-24
申请人： Yuusuke Yamaoka
发明人： Yuusuke Yamaoka
IPC分类号： H03M1/66
CPC分类号： H03K19/01707 , H03M1/745
摘要： A capacitor having a capacitance value corresponding to the size of an output current generating transistor is connected between the gate terminal of the output current generating transistor and the input terminal of an inverter circuit.

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