公开(公告)号：US07161412B1

公开(公告)日：2007-01-09

申请号：US11153938

申请日：2005-06-15

Applicant: Gabriele Manganaro

Inventor： Gabriele Manganaro

IPC: G05F3/02

CPC classification number: H03M1/1057

Abstract: A calibration circuit for a current source cell includes a reference current source and a transresistance amplifier forming a feedback loop for calibrating the output current of the current source cell. The reference current source supplies a reference current to a first node switchably connected to the current output node of the current source cell. The transresistance amplifier has an input terminal coupled to the first node and an output terminal switchably connected to a calibration node of the current source cell. With the calibration circuit coupled for calibration, an input current develops at the first node being the difference between the output current of the current source cell and the reference current. The transresistance amplifier receives the input current and generates an output voltage for driving the calibration node. The output voltage has a value operative to nullify the difference between the output current and the reference current.

Abstract translation: 用于电流源单元的校准电路包括参考电流源和跨阻放大器，其形成用于校准电流源单元的输出电流的反馈环路。 参考电流源向可切换地连接到当前源单元的当前输出节点的第一节点提供参考电流。 跨阻放大器具有耦合到第一节点的输入端子和可切换地连接到当前源单元的校准节点的输出端子。 通过校准电路耦合用于校准，在第一节点处产生的输入电流是电流源单元的输出电流与参考电流之间的差。 跨阻放大器接收输入电流并产生用于驱动校准节点的输出电压。 输出电压有一个值可以消除输出电流和参考电流之间的差异。

公开(公告)号：US20050073452A1

公开(公告)日：2005-04-07

申请号：US10947646

申请日：2004-09-22

Applicant: Gabriele Manganaro

Inventor： Gabriele Manganaro

IPC: H03M1/72 ,  H03M1/66

CPC classification number: H03M1/0881 ,  H03M1/72

Abstract: The linearity of switched-capacitor, pipeline digital to analog converters is improved by balancing the settling behavior of its pre-charge switches. In more detail, a switched capacitor DAC includes a number of substantially identical cells, one cell for each bit of an input digital word. A number of switch driver circuits are used to apply respective switch control signals to turn respective switches on and off. Advantageously, the switch control signals differ by an amount determined to equalize the gate-to-source voltage difference between different switches.

Abstract translation: 通过平衡其预充电开关的稳定特性，开关电容器，管线数模转换器的线性度得到改善。 更详细地，开关电容器DAC包括多个基本上相同的单元，输入数字字的每个位的一个单元。 使用多个开关驱动器电路来施加相应的开关控制信号以打开和关闭相应的开关。 有利的是，开关控制信号的差异被确定为均衡不同开关之间的栅极 - 源极电压差。

公开(公告)号：US6061672A

公开(公告)日：2000-05-09

申请号：US953158

申请日：1997-10-17

Applicant: Riccardo Caponetto ,  Luigi Occhipinti ,  Luigi Fortuna ,  Gabriele Manganaro ,  Gaetano Giudice

Inventor： Riccardo Caponetto ,  Luigi Occhipinti ,  Luigi Fortuna ,  Gabriele Manganaro ,  Gaetano Giudice

IPC: G06F15/18 ,  G06F9/44 ,  G06F15/80 ,  G06N3/00 ,  G06N3/04 ,  G06N7/02 ,  G06N7/04

CPC classification number: G06N7/046 ,  G06F15/803

Abstract: The invention relates to a modular architecture of a cellular network for improved large-scale integration, of the type which comprises a plurality of fuzzy cellular elements (C.sub.m,n) interconnected to form a matrix of elements having at least m rows and n columns, the row and column numbers describing the location of each element. Each fuzzy processor is adapted for connection to other processors of the same type such that a parallel architecture of the modular type can be implemented. The management of the architecture is facilitated by each submatrix being controlled by an individually dedicated fuzzy processor device.

Abstract translation: 本发明涉及用于改进大规模集成的蜂窝网络的模块化架构，其类型包括多个互连以形成具有至少m行和n列的元素矩阵的模糊蜂窝元件（Cm，n） 描述每个元素的位置的行和列号。 每个模糊处理器适于连接到相同类型的其他处理器，使得可以实现模块化类型的并行架构。 每个子矩阵由单独专用的模糊处理器设备控制，便于对架构的管理。

公开(公告)号：US20070247342A1

公开(公告)日：2007-10-25

申请号：US11811718

申请日：2007-06-12

Applicant: Gabriele Manganaro

Inventor： Gabriele Manganaro

IPC: H03M1/66

CPC classification number: H03M1/0881 ,  H03M1/72

Abstract: The linearity of switched-capacitor, pipeline digital to analog converters is improved by balancing the settling behavior of its pre-charge switches. In more detail, a switched capacitor DAC includes a number of substantially identical cells, one cell for each bit of an input digital word. A number of switch driver circuits are used to apply respective switch control signals to turn respective switches on and off. Advantageously, the switch control signals differ by an amount determined to equalize the gate-to-source voltage difference between different switches.

Abstract translation: 通过平衡其预充电开关的稳定特性，开关电容器，管线数模转换器的线性度得到改善。 更详细地，开关电容器DAC包括多个基本上相同的单元，输入数字字的每个位的一个单元。 使用多个开关驱动器电路来施加相应的开关控制信号以打开和关闭相应的开关。 有利的是，开关控制信号的差异被确定为均衡不同开关之间的栅极 - 源极电压差。

公开(公告)号：US06542017B2

公开(公告)日：2003-04-01

申请号：US09880551

申请日：2001-06-13

Applicant: Gabriele Manganaro

Inventor： Gabriele Manganaro

IPC: G06F104

CPC classification number: G11C27/026 ,  H03K5/1515 ,  H03M1/1215

Abstract: The present invention relates to a clock generator circuit which comprises a clock generator subcircuit which is operable to generate two clock signals having approximately the same frequency for use in sampling an analog signal in a generally alternating fashion. The clock generator circuit further comprises a pre-phase clock generator subcircuit associated with the clock generator subcircuit which is operable to generate two pre-phase clock signals, wherein each are associated with a respective one of the two clock signals generated by the clock generator subcircuit. In the pre-phase clock generator circuit, a signal transition of each of the pre-phase clock signals occurs before a signal transition of the respective clock signal generated by the clock generator subcircuit; in addition, a timing of a falling edge of the pre-phase clock signals is dictated by a global clock signal. Thus the clock generator circuit avoids sampling error in a double-sampled sample and hold circuit and harmonic distortion associated therewith.

公开(公告)号：US07372386B1

公开(公告)日：2008-05-13

申请号：US11556104

申请日：2006-11-02

Applicant: Franco Maloberti ,  Gabriele Manganaro

Inventor： Franco Maloberti ,  Gabriele Manganaro

IPC: H03M1/66

CPC classification number: H03M1/0626 ,  H03M1/0836 ,  H03M1/1215 ,  H03M1/661

Abstract: A method for performing parallel digital-to-analog conversion of an n-bit digital input data signal at a frequency of fs including receiving the n-bit digital input data signal; generating M−1 delayed input data signals, M being the number of parallel conversions channels, the M−1 delayed input data signals having respective increasing amount of unit delay, the digital input data signal and the M−1 delayed input data signals forming M digital signals; holding the M digital signals for a first time period; performing a data transformation of the M digital signals using an M×M Hadamard matrix; generating M (n+m)-bit transformed digital data signals; converting each of the M transformed digital data signals to M analog signals; and performing a reverse data transformation of the M analog signals based on the M×M Hadamard matrix to generate an output analog signal indicative of the n-bit digital input data signal.

Abstract translation: 一种用于以包括接收n位数字输入数据信号的频率f进行n位数字输入数据信号的并行数模转换的方法， 产生M-1个延迟的输入数据信号，M是并行转换通道的数量，M-1个延迟的输入数据信号具有各自增加的单位延迟量，数字输入数据信号和M-1个延迟的输入数据信号形成M 数字信号; 持续M数字信号第一时间段; 使用MxM Hadamard矩阵执行M个数字信号的数据变换; 产生M（n + m）位变换数字数据信号; 将M个经变换的数字数据信号中的每一个转换为M个模拟信号; 以及基于MxM Hadamard矩阵执行M个模拟信号的反向数据变换，以产生表示n位数字输入数据信号的输出模拟信号。

公开(公告)号：US06778121B2

公开(公告)日：2004-08-17

申请号：US10462086

申请日：2003-06-13

Applicant: Gabriele Manganaro

Inventor： Gabriele Manganaro

IPC: H03M166

CPC classification number: H03M1/804

Abstract: A digital-to-analog converter (DAC) with high linearity includes a switched capacitor amplifier removably coupled to a capacitor array. The result of the conversion by the capacitor array is sampled by the switched capacitor amplifier directly from the capacitor in the most significant cell in the array. The switched capacitor amplifier includes a memory capacitor and a feedback capacitor. The memory capacitor provides the initial output voltage corresponding to the result of the conversion when coupled to the capacitor array and stores the output voltage while the feedback capacitor is reset.

公开(公告)号：US07403148B2

公开(公告)日：2008-07-22

申请号：US11811718

申请日：2007-06-12

Applicant: Gabriele Manganaro

Inventor： Gabriele Manganaro

IPC: H03M1/66

CPC classification number: H03M1/0881 ,  H03M1/72

Abstract: The linearity of switched-capacitor, pipeline digital to analog converters is improved by balancing the settling behavior of its pre-charge switches. In more detail, a switched capacitor DAC includes a number of substantially identical cells, one cell for each bit of an input digital word. A number of switch driver circuits are used to apply respective switch control signals to turn respective switches on and off. Advantageously, the switch control signals differ by an amount determined to equalize the gate-to-source voltage difference between different switches.

Abstract translation: 通过平衡其预充电开关的稳定特性，开关电容器，管线数模转换器的线性度得到改善。 更详细地，开关电容器DAC包括多个基本上相同的单元，输入数字字的每个位的一个单元。 使用多个开关驱动器电路来施加相应的开关控制信号以打开和关闭相应的开关。 有利的是，开关控制信号的差异被确定为均衡不同开关之间的栅极 - 源极电压差。

公开(公告)号：US07324034B2

公开(公告)日：2008-01-29

申请号：US10947646

申请日：2004-09-22

Applicant: Gabriele Manganaro

Inventor： Gabriele Manganaro

IPC: H03M1/66

CPC classification number: H03M1/0881 ,  H03M1/72

Abstract: The linearity of switched-capacitor, pipeline digital to analog converters is improved by balancing the settling behavior of its pre-charge switches. In more detail, a switched capacitor DAC includes a number of substantially identical cells, one cell for each bit of an input digital word. A number of switch driver circuits are used to apply respective switch control signals to turn respective switches on and off. Advantageously, the switch control signals differ by an amount determined to equalize the gate-to-source voltage difference between different switches.

公开(公告)号：US07202744B1

公开(公告)日：2007-04-10

申请号：US11153939

申请日：2005-06-15

Applicant: Gabriele Manganaro

Inventor： Gabriele Manganaro

IPC: H03F3/04

CPC classification number: H03F3/082 ,  H03F1/303

Abstract: A transresistance amplifier circuit includes an input terminal receiving an input current, an output terminal providing an output voltage indicative of the input current, a first bias current source providing a first bias current to the input terminal, a first transistor, a second transistor, and a biasing circuit. The first transistor is coupled between the output terminal and the input terminal and controlled by a first bias voltage. The second transistor is coupled between a first supply voltage and the output terminal and controlled by a second bias voltage. The biasing circuit generates the first bias voltage for the first transistor for imposing a first voltage at the input terminal. The first voltage is equivalent to a selected voltage of an application circuit and the biasing circuit generates the first bias voltage in a manner so as to allow the first voltage to track variations in the selected voltage.

Abstract translation: 跨阻放大器电路包括接收输入电流的输入端子，提供表示输入电流的输出电压的输出端子，向输入端子提供第一偏置电流的第一偏置电流源，第一晶体管，第二晶体管和 偏置电路。 第一晶体管耦合在输出端和输入端之间，由第一偏置电压控制。 第二晶体管耦合在第一电源电压和输出端之间，并由第二偏置电压控制。 偏置电路产生用于在输入端施加第一电压的第一晶体管的第一偏置电压。 第一电压等于施加电路的选定电压，并且偏置电路以这样的方式产生第一偏置电压，以便允许第一电压跟踪所选电压的变化。