公开(公告)号：US07649480B2

公开(公告)日：2010-01-19

申请号：US11987772

申请日：2007-12-04

Applicant: Alastair Mark Boomer ,  John Paul Lesso

Inventor： Alastair Mark Boomer ,  John Paul Lesso

IPC: H03M1/10

CPC classification number: H03M1/1023 ,  H03M1/1009 ,  H03M1/12

Abstract: A calibration circuit and method suitable for black level calibration in image processing, the circuit comprising an analogue gain amplifier, an analogue to digital converter; a correction circuit for receiving a digital signal and providing a digital offset signal; and a digital to analogue converter for receiving said digital offset signal and feeding a corresponding analogue offset signal back to the input of said gain amplifier. The calibration circuit is arranged such that the correction circuit and said digital to analogue converter form a feedback loop applying an offset to said input signal and said correction circuit includes an inverse gain circuit for applying an inverse gain to a signal within said correction circuit prior to said digital to analogue converter. Preferably the inverse gain applied is such that the total loop gain does not deviate too far from unity.

Abstract translation: 一种适用于图像处理中的黑电平校准的校准电路和方法，该电路包括模拟增益放大器，模数转换器; 用于接收数字信号并提供数字偏移信号的校正电路; 以及数模转换器，用于接收所述数字偏移信号，并将相应的模拟偏移信号反馈给所述增益放大器的输入端。 校准电路被布置成使得校正电路和所述数模转换器形成对所述输入信号施加偏移的反馈环路，并且所述校正电路包括用于在所述校正电路之前对所述校正电路中的信号施加反增益的反相增益电路 表示数模转换器。 优选地，应用的反增益使得总环路增益不会偏离太远离单位。

公开(公告)号：US20100060498A1

公开(公告)日：2010-03-11

申请号：US12620237

申请日：2009-11-17

Applicant: Alastair Mark Boomer ,  John Paul Lesso

Inventor： Alastair Mark Boomer ,  John Paul Lesso

IPC: H03M1/10

CPC classification number: H03M1/1023 ,  H03M1/1009 ,  H03M1/12

Abstract: A calibration circuit and method suitable for black level calibration in image processing, the circuit comprising an analogue gain amplifier, an analogue to digital converter; a correction circuit for receiving a digital signal and providing a digital offset signal; and a digital to analogue converter for receiving said digital offset signal and feeding a corresponding analogue offset signal back to the input of said gain amplifier. The calibration circuit is arranged such that the correction circuit and said digital to analogue converter form a feedback loop applying an offset to said input signal and said correction circuit includes an inverse gain circuit for applying an inverse gain to a signal within said correction circuit prior to said digital to analogue converter. Preferably the inverse gain applied is such that the total loop gain does not deviate too far from unity.

Abstract translation: 一种适用于图像处理中的黑电平校准的校准电路和方法，该电路包括模拟增益放大器，模数转换器; 用于接收数字信号并提供数字偏移信号的校正电路; 以及数模转换器，用于接收所述数字偏移信号，并将相应的模拟偏移信号反馈给所述增益放大器的输入端。 校准电路被布置成使得校正电路和所述数模转换器形成对所述输入信号施加偏移的反馈环路，并且所述校正电路包括用于在所述校正电路之前对所述校正电路中的信号施加反增益的反相增益电路 表示数模转换器。 优选地，应用的反增益使得总环路增益不会偏离太远离单位。

公开(公告)号：US20080129563A1

公开(公告)日：2008-06-05

申请号：US11987772

申请日：2007-12-04

Applicant: Alastair Mark Boomer ,  John Paul Lesso

Inventor： Alastair Mark Boomer ,  John Paul Lesso

IPC: H03M1/10

CPC classification number: H03M1/1023 ,  H03M1/1009 ,  H03M1/12

Abstract: A calibration circuit and method suitable for black level calibration in image processing, the circuit comprising an analogue gain amplifier, an analogue to digital converter; a correction circuit for receiving a digital signal and providing a digital offset signal; and a digital to analogue converter for receiving said digital offset signal and feeding a corresponding analogue offset signal back to the input of said gain amplifier. The calibration circuit is arranged such that the correction circuit and said digital to analogue converter form a feedback loop applying an offset to said input signal and said correction circuit includes an inverse gain circuit for applying an inverse gain to a signal within said correction circuit prior to said digital to analogue converter. Preferably the inverse gain applied is such that the total loop gain does not deviate too far from unity.

Abstract translation: 一种适用于图像处理中的黑电平校准的校准电路和方法，该电路包括模拟增益放大器，模数转换器; 用于接收数字信号并提供数字偏移信号的校正电路; 以及数模转换器，用于接收所述数字偏移信号，并将相应的模拟偏移信号反馈给所述增益放大器的输入端。 校准电路被布置成使得校正电路和所述数模转换器形成对所述输入信号施加偏移的反馈回路，并且所述校正电路包括用于在所述校正电路之前对所述校正电路中的信号施加反增益的反相增益电路 表示数模转换器。 优选地，应用的反增益使得总环路增益不会偏离太远离单位。

公开(公告)号：US07994954B2

公开(公告)日：2011-08-09

申请号：US12620237

申请日：2009-11-17

Applicant: Alastair Mark Boomer ,  John Paul Lesso

Inventor： Alastair Mark Boomer ,  John Paul Lesso

IPC: H03M1/10

CPC classification number: H03M1/1023 ,  H03M1/1009 ,  H03M1/12

Abstract: A calibration circuit and method suitable for black level calibration in image processing, the circuit comprising an analogue gain amplifier, an analogue to digital converter; a correction circuit for receiving a digital signal and providing a digital offset signal; and a digital to analogue converter for receiving said digital offset signal and feeding a corresponding analogue offset signal back to the input of said gain amplifier. The calibration circuit is arranged such that the correction circuit and said digital to analogue converter form a feedback loop applying an offset to said input signal and said correction circuit includes an inverse gain circuit for applying an inverse gain to a signal within said correction circuit prior to said digital to analogue converter. Preferably the inverse gain applied is such that the total loop gain does not deviate too far from unity.

Abstract translation: 一种适用于图像处理中的黑电平校准的校准电路和方法，该电路包括模拟增益放大器，模数转换器; 用于接收数字信号并提供数字偏移信号的校正电路; 以及数模转换器，用于接收所述数字偏移信号，并将相应的模拟偏移信号反馈给所述增益放大器的输入端。 校准电路被布置成使得校正电路和所述数模转换器形成对所述输入信号施加偏移的反馈回路，并且所述校正电路包括用于在所述校正电路之前对所述校正电路中的信号施加反增益的反相增益电路 表示数模转换器。 优选地，应用的反增益使得总环路增益不会偏离太远离单位。

公开(公告)号：US09136755B2

公开(公告)日：2015-09-15

申请号：US13336835

申请日：2011-12-23

Applicant: John Paul Lesso ,  Peter John Frith ,  John Laurence Pennock

Inventor： John Paul Lesso ,  Peter John Frith ,  John Laurence Pennock

IPC: G05F1/10 ,  G05F3/02 ,  H02M3/07

CPC classification number: H02M3/07 ,  H02M2003/071 ,  H02M2003/072 ,  H03G3/30

Abstract: A bipolar output charge pump circuit having a network of switching paths 110 for selectively connecting an input node (VV) and a reference node (VG) for connection to an input voltage, a first pair of output nodes (VP, VN), two pairs of flying capacitor nodes (CF1A, CF1B; CF2A, CF2B), and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors (CF1, CF2) connected to the two pairs of flying capacitor nodes, to provide a first mode and a second mode when in use with two flying capacitors connected to the flying capacitor nodes, wherein at least the first mode corresponds to a bipolar output voltage of +/−3VV, +/−VV/5 or +/−VV/6.

Abstract translation: 一种双极性输出电荷泵电路，具有用于选择性地连接输入节点（VV）和用于连接到输入电压的参考节点（VG）的开关路径110的网络，第一对输出节点（VP，VN），两对 的飞行电容器节点（CF1A，CF1B; CF2A，CF2B）和用于控制切换路径网络的切换的控制器。 当与两对飞跨电容器节点连接的两个浮动电容器（CF1，CF2）使用时，该控制器可操作以控制开关路径网络，以在连接两个飞行电容器时提供第一模式和第二模式 其中至少第一模式对应于+/- 3VV，+/- VV / 5或+/- VV / 6的双极性输出电压。

公开(公告)号：US20120170770A1

公开(公告)日：2012-07-05

申请号：US13336835

申请日：2011-12-23

Applicant: John Paul Lesso ,  Peter John Frith ,  John Laurence Pennock

Inventor： John Paul Lesso ,  Peter John Frith ,  John Laurence Pennock

IPC: H03G3/00 ,  H02B1/00 ,  G05F1/10

CPC classification number: H02M3/07 ,  H02M2003/071 ,  H02M2003/072 ,  H03G3/30

Abstract: A bipolar output charge pump circuit having a network of switching paths 110 for selectively connecting an input node (VV) and a reference node (VG) for connection to an input voltage, a first pair of output nodes (VP, VN), two pairs of flying capacitor nodes (CF1A, CF1B; CF2A, CF2B), and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors (CF1, CF2) connected to the two pairs of flying capacitor nodes, to provide a first mode and a second mode when in use with two flying capacitors connected to the flying capacitor nodes, wherein at least the first mode corresponds to a bipolar output voltage of +/−3VV, +/−VV/5 or +/−VV/6.

Abstract translation: 一种双极性输出电荷泵电路，具有用于选择性地连接输入节点（VV）和用于连接到输入电压的参考节点（VG）的开关路径110的网络，第一对输出节点（VP，VN），两对 的飞行电容器节点（CF1A，CF1B; CF2A，CF2B）和用于控制切换路径网络的切换的控制器。 当与两对飞跨电容器节点连接的两个浮动电容器（CF1，CF2）使用时，该控制器可操作以控制开关路径网络，以在连接两个飞行电容器时提供第一模式和第二模式 其中至少第一模式对应于+/- 3VV，+/- VV / 5或+/- VV / 6的双极性输出电压。

公开(公告)号：US20120163632A1

公开(公告)日：2012-06-28

申请号：US13403450

申请日：2012-02-23

Applicant: John Paul Lesso ,  Peter John Frith ,  John Laurence Pennock

Inventor： John Paul Lesso ,  Peter John Frith ,  John Laurence Pennock

IPC: H03G3/00 ,  G05F1/10

CPC classification number: H02M3/07 ,  H02M1/00 ,  H02M2001/0083 ,  H02M2001/009 ,  H03F3/181

Abstract: A bipolar output charge pump circuit 100 having a network of switching paths 110 for selectively connecting an input node (VV) and a reference node (VG) for connection to an input voltage, a first pair of output nodes (VP, VN) and a second pair of output nodes (VQ, VM), and two pairs of flying capacitor nodes (CF1A, CF1 B; CF2A, CF2B), and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors (CF1, CF2) connected to the two pairs of flying capacitor nodes, to provide a first bipolar output voltage at the first pair of output nodes (VP, VN) and a second bipolar output voltage at the second pair of bipolar output nodes (VQ, VM).

Abstract translation: 具有用于选择性地连接输入节点（VV）和用于连接到输入电压的参考节点（VG）的开关路径网络的双极性输出电荷泵电路100，第一对输出节点（VP，VN）和 第二对输出节点（VQ，VM）和两对飞电容器节点（CF1A，CF1B; CF2A，CF2B），以及用于控制切换路径网络切换的控制器。 控制器可操作以在与两对飞跨电容器节点连接的两个飞行电容器（CF1，CF2）使用时控制开关路径网络，以在第一对输出节点（VP， VN）和在第二对双极输出节点（VQ，VM）处的第二双极性输出电压。

公开(公告)号：US08068623B2

公开(公告)日：2011-11-29

申请号：US12436909

申请日：2009-05-07

Applicant: John Paul Lesso

Inventor： John Paul Lesso

IPC: H02B1/00

CPC classification number: G01P15/125 ,  B06B1/0292

Abstract: A capacitive transducer circuit includes a capacitive transducer having first and second electrodes. The first and second electrodes are biased by respective first and second bias voltages. An amplifier is connected to receive a first analog signal on an input terminal, the first analog signal being generated by the capacitive transducer, and to generate a second analog signal on an output terminal. A digital feedback circuit is connected between the output terminal of the amplifier and the input terminal of the amplifier. The digital feedback circuit is configured to provide one of said first or second bias voltages. A switched capacitor filter circuit may be arranged between the voltage source and the transducer and may be arranged to filter the output of the voltage source.

Abstract translation: 电容式换能器电路包括具有第一和第二电极的电容换能器。 第一和第二电极被相应的第一和第二偏置电压偏置。 放大器被连接以在输入端子上接收第一模拟信号，第一模拟信号由电容式换能器产生，并在输出端产生第二模拟信号。 数字反馈电路连接在放大器的输出端和放大器的输入端之间。 数字反馈电路被配置为提供所述第一或第二偏置电压之一。 开关电容器滤波器电路可以布置在电压源和换能器之间，并且可以被布置成对电压源的输出进行滤波。

公开(公告)号：US20100219888A1

公开(公告)日：2010-09-02

申请号：US12671639

申请日：2008-08-04

Applicant: John Paul Lesso

Inventor： John Paul Lesso

IPC: H03G3/20

CPC classification number: H03G3/3015 ,  H03F1/0216 ,  H03F1/0227 ,  H03F1/0261 ,  H03F1/30 ,  H03F3/185 ,  H03F3/193 ,  H03F2200/03 ,  H03F2200/504 ,  H03G3/001

Abstract: An amplifier circuit comprises an input, for receiving an input signal to be amplified; a preamplifier, for amplifying the input signal based on a variable gain; a power amplifier for amplifying the signal output from the preamplifier, and a variable voltage power supply for supplying one or more supply voltages to the power amplifier. The supply voltages are adjusted based on the variable gain or the input digital signal. According to other aspects of the invention, a power supply of an amplifier circuit is clocked using a clock signal, whereby the clock signal has a frequency that varies in accordance with a volume signal or an input signal.

Abstract translation: 放大器电路包括用于接收待放大的输入信号的输入端; 前置放大器，用于基于可变增益放大输入信号; 用于放大从前置放大器输出的信号的功率放大器和用于向功率放大器提供一个或多个电源电压的可变电压电源。 电源电压根据可变增益或输入数字信号进行调整。 根据本发明的其他方面，使用时钟信号对放大器电路的电源进行定时，由此时钟信号具有根据音量信号或输入信号而变化的频率。

公开(公告)号：US20090279719A1

公开(公告)日：2009-11-12

申请号：US12436909

申请日：2009-05-07

Applicant: John Paul Lesso

Inventor： John Paul Lesso

IPC: H04R11/04

CPC classification number: G01P15/125 ,  B06B1/0292

Abstract: A capacitive transducer circuit includes a capacitive transducer having first and second electrodes. The first and second electrodes are biased by respective first and second bias voltages. An amplifier is connected to receive a first analog signal on an input terminal, the first analog signal being generated by the capacitive transducer, and to generate a second analog signal on an output terminal. A digital feedback circuit is connected between the output terminal of the amplifier and the input terminal of the amplifier. The digital feedback circuit is configured to provide one of said first or second bias voltages. A switched capacitor filter circuit may be arranged between the voltage source and the transducer and may be arranged to filter the output of the voltage source.

Abstract translation: 电容式换能器电路包括具有第一和第二电极的电容换能器。 第一和第二电极被相应的第一和第二偏置电压偏置。 放大器被连接以在输入端子上接收第一模拟信号，第一模拟信号由电容换能器产生，并在输出端产生第二模拟信号。 数字反馈电路连接在放大器的输出端和放大器的输入端之间。 数字反馈电路被配置为提供所述第一或第二偏置电压之一。 开关电容器滤波器电路可以布置在电压源和换能器之间，并且可以被布置成对电压源的输出进行滤波。