公开(公告)号：US09094629B2

公开(公告)日：2015-07-28

申请号：US13562152

申请日：2012-07-30

申请人： Koji Ishibashi

发明人： Koji Ishibashi

IPC分类号： H04N5/335 ,  H04N5/378 ,  H03M1/00 ,  H03M1/56

CPC分类号： H04N5/378 ,  H03M1/004 ,  H03M1/56

摘要： An image pickup apparatus includes a pixel generating a signal by photoelectric conversion, a comparator comparing the signal based on the pixel with a reference signal varied with time, a counter performing counting until the comparator outputs a signal indicating that a relationship in magnitude between the signal based on the pixel and the reference signal is reversed, and a control unit. The comparator includes a first amplifier receiving the reference signal at a first input portion and the signal based on the pixel at a second input portion to compare the signal based on the pixel with the reference signal. The control unit sets a bandwidth of the comparator to a first bandwidth when the reference signal varies at a first rate of change and to a second bandwidth when the reference signal varies at a second rate of change.

摘要翻译： 图像拾取装置包括通过光电转换产生信号的像素，将基于像素的信号与随时间变化的参考信号进行比较的比较器，执行计数的计数器，直到比较器输出指示信号之间的大小关系的信号 基于像素和参考信号反转，以及控制单元。 比较器包括在第一输入部分处接收参考信号的第一放大器和基于第二输入部分处的像素的信号，以将基于像素的信号与参考信号进行比较。 当参考信号以第一变化率变化时，控制单元将比较器的带宽设置为第一带宽，并且当参考信号以第二变化率变化时，将比较器的带宽设置为第一带宽。

公开(公告)号：US20140085123A1

公开(公告)日：2014-03-27

申请号：US14035782

申请日：2013-09-24

申请人： Eduard ROYTMAN ,  Jian XU ,  Rahul SHAH ,  Kambiz R. MUNSHI ,  Ronald L. BEDARD ,  Mahalingam NAGARAJAN

发明人： Eduard ROYTMAN ,  Jian XU ,  Rahul SHAH ,  Kambiz R. MUNSHI ,  Ronald L. BEDARD ,  Mahalingam NAGARAJAN

IPC分类号： H03K5/08 ,  H03M1/12

CPC分类号： H03K5/086 ,  H03K5/1565 ,  H03M1/004 ,  H03M1/126 ,  H03M1/50

摘要： Described herein are an apparatus, system, and method for compensating voltage swing and duty cycle of a signal on an input-output (I/O) pad of a processor by adjusting the voltage swing and duty cycle of the signal. The apparatus comprises a driver to transmit a signal on an I/O pad, the signal on the I/O pad having a voltage swing and a duty cycle; and an adjustment unit, coupled to the driver, to receive the signal from the I/O pad transmitted by the driver and to generate voltage swing and duty cycle control signals for adjusting the voltage swing and duty cycle of the signal on the I/O pad respectively. Described herein is also an analog-to-digital (A2D) converter for measuring and/or calibrating various signal attributes including current, voltage, and time.

摘要翻译： 这里描述了一种用于通过调整信号的电压摆幅和占空比来补偿处理器的输入输出（I / O）焊盘上的信号的电压摆幅和占空比的装置，系统和方法。 该装置包括用于在I / O焊盘上传输信号的驱动器，I / O焊盘上的信号具有电压摆幅和占空比; 以及耦合到驱动器的调整单元，用于接收由驱动器发送的I / O焊盘的信号，并产生用于调整I / O上信号的电压摆幅和占空比的电压摆幅和占空比控制信号 垫分别。 这里描述的也是用于测量和/或校准包括电流，电压和时间的各种信号属性的模数（A2D）转换器。

公开(公告)号：US08462887B1

公开(公告)日：2013-06-11

申请号：US13213846

申请日：2011-08-19

申请人： King Chun Tsai ,  Patrick Clement ,  David Cousinard

发明人： King Chun Tsai ,  Patrick Clement ,  David Cousinard

IPC分类号： H04L27/00

CPC分类号： H03M3/458 ,  H01L51/524 ,  H03M1/004 ,  H03M1/12

摘要： A receiver is set forth that includes a tuner circuit and a converter circuit. The tuner circuit provides an analog signal corresponding to a modulated signal that is received on a selected channel. The converter circuit includes a sample clock that is used to convert the analog signal to a digital signal at a conversion rate corresponding to the frequency of the sample clock. The sample clock is selectable between at least two different clock frequencies.

摘要翻译： 提出了包括调谐器电路和转换器电路的接收器。 调谐器电路提供对应于在所选频道上接收的调制信号的模拟信号。 转换器电路包括采样时钟，该采样时钟用于以与采样时钟的频率对应的转换速率将模拟信号转换为数字信号。 采样时钟可在至少两个不同的时钟频率之间选择。

公开(公告)号：US08416113B1

公开(公告)日：2013-04-09

申请号：US13630876

申请日：2012-09-28

申请人： Cypress Semiconductor Corporation

发明人： Jean-Paul Vanitegem ,  Haneef Mohammed ,  Hans Klein ,  Harold Kutz ,  Ata Khan

IPC分类号： H03M1/12

CPC分类号： H01L25/00 ,  G06F15/7867 ,  H01L2924/0002 ,  H03M1/004 ,  H03M1/1225 ,  H03M1/46 ,  H01L2924/00

摘要： An integrated circuit device can include a plurality of analog blocks, at least a first analog block comprising a data converter circuit, each analog block including a programmable switch path coupled to a plurality of external connections to the integrated circuit device; and a plurality of programmable digital blocks, at least one programmable digital block configurable to control the programmable switch paths to couple external connections to the data converter circuit via an analog block other than the first analog block.

摘要翻译： 集成电路装置可以包括多个模拟块，至少第一模拟块包括数据转换器电路，每个模拟块包括耦合到集成电路装置的多个外部连接的可编程开关路径; 以及多个可编程数字块，至少一个可编程数字块，可配置为控制可编程开关路径，以经由除第一模拟块之外的模拟块将外部连接耦合到数据转换器电路。

公开(公告)号：US20130032695A1

公开(公告)日：2013-02-07

申请号：US13562152

申请日：2012-07-30

申请人： Koji Ishibashi

发明人： Koji Ishibashi

IPC分类号： H01L27/146

CPC分类号： H04N5/378 ,  H03M1/004 ,  H03M1/56

摘要： An image pickup apparatus includes a pixel generating a signal by photoelectric conversion, a comparator comparing the signal based on the pixel with a reference signal varied with time, a counter performing counting until the comparator outputs a signal indicating that a relationship in magnitude between the signal based on the pixel and the reference signal is reversed, and a control unit. The comparator includes a first amplifier receiving the reference signal at a first input portion and the signal based on the pixel at a second input portion to compare the signal based on the pixel with the reference signal. The control unit sets a bandwidth of the comparator to a first bandwidth when the reference signal varies at a first rate of change and to a second bandwidth when the reference signal varies at a second rate of change.

摘要翻译： 图像拾取装置包括通过光电转换产生信号的像素，将基于像素的信号与随时间变化的参考信号进行比较的比较器，执行计数的计数器，直到比较器输出指示信号之间的大小关系的信号 基于像素和参考信号反转，以及控制单元。 比较器包括在第一输入部分处接收参考信号的第一放大器和基于第二输入部分处的像素的信号，以将基于像素的信号与参考信号进行比较。 当参考信号以第一变化率变化时，控制单元将比较器的带宽设置为第一带宽，并且当参考信号以第二变化率变化时，将比较器的带宽设置为第一带宽。

公开(公告)号：US20120280732A1

公开(公告)日：2012-11-08

申请号：US13100669

申请日：2011-05-04

申请人： Eduard Roytman ,  Jian Xu ,  Rahul R. Shah ,  Kambiz R. Munshi ,  Ronald L. Bedard ,  Mahalingam Nagarajan

发明人： Eduard Roytman ,  Jian Xu ,  Rahul R. Shah ,  Kambiz R. Munshi ,  Ronald L. Bedard ,  Mahalingam Nagarajan

IPC分类号： H03K3/017

CPC分类号： H03K5/086 ,  H03K5/1565 ,  H03M1/004 ,  H03M1/126 ,  H03M1/50

摘要： Described herein are an apparatus, system, and method for compensating voltage swing and duty cycle of a signal on an input-output (I/O) pad of a processor by adjusting the voltage swing and duty cycle of the signal. The apparatus comprises a driver to transmit a signal on an I/O pad, the signal on the I/O pad having a voltage swing and a duty cycle; and an adjustment unit, coupled to the driver, to receive the signal from the I/O pad transmitted by the driver and to generate voltage swing and duty cycle control signals for adjusting the voltage swing and duty cycle of the signal on the I/O pad respectively. Described herein is also an analog-to-digital (A2D) converter for measuring and/or calibrating various signal attributes including current, voltage, and time.

摘要翻译： 这里描述了一种用于通过调整信号的电压摆幅和占空比来补偿处理器的输入输出（I / O）焊盘上的信号的电压摆幅和占空比的装置，系统和方法。 该装置包括用于在I / O焊盘上传输信号的驱动器，I / O焊盘上的信号具有电压摆幅和占空比; 以及耦合到驱动器的调整单元，用于接收由驱动器发送的I / O焊盘的信号，并产生用于调整I / O上信号的电压摆幅和占空比的电压摆幅和占空比控制信号 垫分别。 这里描述的也是用于测量和/或校准包括电流，电压和时间的各种信号属性的模数（A2D）转换器。

公开(公告)号：US08018368B2

公开(公告)日：2011-09-13

申请号：US12662025

申请日：2010-03-29

申请人： Shigemitsu Murayama ,  Yasuhide Shimizu ,  Hiroaki Yatsuda ,  Kohei Kudo

发明人： Shigemitsu Murayama ,  Yasuhide Shimizu ,  Hiroaki Yatsuda ,  Kohei Kudo

IPC分类号： H03M1/12

CPC分类号： H03M1/004 ,  H03M1/0682 ,  H03M1/1215 ,  H03M1/147 ,  H03M1/365

摘要： An analog to digital converter includes: a reference circuit adapted to generate reference voltages; differential amplifiers; normal phase circuits each of which samples a normal phase analog input signal and transfers a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a first input terminal of one of the differential amplifiers when the input is differential and single-ended; and reversed phase circuits each of which samples a reversed phase analog input signal and transfers a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a second input terminal of one of the differential amplifiers when the input is differential and which samples a ground level as a reference voltage of the reference circuit and supplies the reference voltage and comparison voltage to the second input terminal of the differential amplifier when the input is single-ended.

摘要翻译： 模数转换器包括：适于产生参考电压的参考电路; 差分放大器; 每个正常相电路对正相模拟输入信号进行采样，并将通过与参考电路产生的参考电压进行比较获得的比较电压传送到差分放大器之一的第一输入端，当输入为差分和单 接受 每个反相电路对反相模拟输入信号进行采样，并将通过与基准电路产生的参考电压进行比较而获得的比较电压传送到差分放大器之一的第二输入端，当输入为差分时， 其将接地电平作为参考电路的参考电压进行采样，并且当输入为单端时将参考电压和比较电压提供给差分放大器的第二输入端。

公开(公告)号：US07876251B2

公开(公告)日：2011-01-25

申请号：US12574586

申请日：2009-10-06

申请人： Hongxuan Zhang

发明人： Hongxuan Zhang

IPC分类号： H03M1/12

CPC分类号： H03M1/127 ,  A61B5/0402 ,  G06F19/00 ,  H03M1/004 ,  H03M1/1215

摘要： A patient monitoring signal processing system adaptively varies medical signal data rate. The system uses an analog to digital converter for digitizing an analog cyclically varying input signal derived from a patient in response to a sampling clock input. The sampling clock determines frequency of analog to digital sampling of the analog input signal by the analog to digital converter. A detector detects first and second different signal portions within a cycle of the cyclically varying input signal. A control processor coupled to the analog to digital converter and the detector, provides the sampling clock and adaptively determines first and second different frequencies of the sampling clock to be used in sampling within detected corresponding first and second different signal portions of the cyclically varying input signal in response to predetermined information indicating a frequency of a signal component of the cyclically varying input signal in the first signal portion is higher than a frequency of a signal component of the cyclically varying input signal in the second signal portion. Also the first frequency is higher than the second frequency of the first and second different frequencies.

摘要翻译： 患者监护信号处理系统自适应地改变医疗信号数据速率。 系统使用模数转换器来响应于采样时钟输入数字化从患者得到的模拟周期性变化的输入信号。 采样时钟决定模数转换器模拟输入信号的模拟数字采样频率。 检测器在周期性变化的输入信号的周期内检测第一和第二不同的信号部分。 耦合到模数转换器和检测器的控制处理器提供采样时钟并且自适应地确定要在循环变化的输入信号的检测到的对应的第一和第二不同信号部分内的采样中使用的采样时钟的第一和第二不同频率 响应于指示第一信号部分中循环变化的输入信号的信号分量的频率的预定信息高于第二信号部分中循环变化的输入信号的信号分量的频率。 此外，第一频率高于第一和第二不同频率的第二频率。

公开(公告)号：US20100271244A1

公开(公告)日：2010-10-28

申请号：US12662025

申请日：2010-03-29

申请人： Shigemitsu Murayama ,  Yasuhide Shimizu ,  Hiroaki Yatsuda ,  Kohei Kudo

发明人： Shigemitsu Murayama ,  Yasuhide Shimizu ,  Hiroaki Yatsuda ,  Kohei Kudo

IPC分类号： H03M1/12 ,  H03M3/00

CPC分类号： H03M1/004 ,  H03M1/0682 ,  H03M1/1215 ,  H03M1/147 ,  H03M1/365

摘要： An analog to digital converter includes: a reference circuit adapted to generate reference voltages; differential amplifiers; normal phase circuits each of which samples a normal phase analog input signal and transfers a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a first input terminal of one of the differential amplifiers when the input is differential and single-ended; and reversed phase circuits each of which samples a reversed phase analog input signal and transfers a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a second input terminal of one of the differential amplifiers when the input is differential and which samples a ground level as a reference voltage of the reference circuit and supplies the reference voltage and comparison voltage to the second input terminal of the differential amplifier when the input is single-ended.

摘要翻译： 模数转换器包括：适于产生参考电压的参考电路; 差分放大器; 每个正常相电路对正相模拟输入信号进行采样，并将通过与参考电路产生的参考电压进行比较获得的比较电压传送到差分放大器之一的第一输入端，当输入为差分和单 接受 每个反相电路对反相模拟输入信号进行采样，并将通过与基准电路产生的参考电压进行比较而获得的比较电压传送到差分放大器之一的第二输入端，当输入为差分时， 其将接地电平作为参考电路的参考电压进行采样，并且当输入为单端时将参考电压和比较电压提供给差分放大器的第二输入端。

公开(公告)号：US07728749B2

公开(公告)日：2010-06-01

申请号：US12196292

申请日：2008-08-22

申请人： Biranchinath Sahu

发明人： Biranchinath Sahu

IPC分类号： H03M1/66

CPC分类号： H03M1/004 ,  H03M1/66

摘要： Various apparatuses, methods and systems for a multi-mode DAC with selectable output range, granularity and offset and controlled slew rate are disclosed herein. For example, some embodiments of the present invention provide an apparatus for supplying a reference signal, including a digital-to-analog converter, a counter and a clock. The digital-to-analog converter has a digital input and an analog output that supplies a reference signal based on the digital input. The counter has a digital control word input, a clock input, a clock enable output and a count output connected to the digital input of the digital-to-analog converter. The counter is adapted to assert the clock enable output when the digital control word input requests an output count that is different from an actual count at the count output of the counter. The clock has an enable input connected to the clock enable output of the counter and a clock output connected to the clock input of the counter. The clock is adapted to produce clock pulses on the clock output while the enable input is asserted.

摘要翻译： 这里公开了用于具有可选输出范围，粒度和偏移以及受控的压摆率的多模式DAC的各种装置，方法和系统。 例如，本发明的一些实施例提供了一种用于提供参考信号的装置，包括数模转换器，计数器和时钟。 数模转换器具有数字输入和模拟输出，可根据数字输入提供参考信号。 计数器具有数字控制字输入，时钟输入，时钟使能输出和连接到数模转换器的数字输入的计数输出。 当数字控制字输入请求与计数器的计数输出上的实际计数不同的输出计数时，该计数器适用于断言时钟使能输出。 时钟具有连接到计数器的时钟使能输出的使能输入和连接到计数器的时钟输入的时钟输出。 该时钟适用于在使能输入被置位时在时钟输出端产生时钟脉冲。