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    • 71. 发明申请
    • SINGLE AMPLIFER BI-QUAD SIGMA-DELTA MODULATOR
    • 单放大器双四线SIGMA-DELTA调制器
    • WO2017112210A1
    • 2017-06-29
    • PCT/US2016/063073
    • 2016-11-21
    • INTEL IP CORPORATION
    • KAUFFMAN, John G.SCHUETZ, Udo
    • H03M3/00
    • H03M3/344H03M3/30H03M3/386H03M3/448H03M3/452H03M3/454
    • Some embodiments include apparatus and methods using a first stage including an integrator, a second stage coupled to the first stage, the second stage including an amplifier, a first capacitor, and a second capacitor coupled in series with the first capacitor between an input node and an output node of the amplifier, a quantizer coupled to the output node of the amplifier, and a feedback path coupled to an output node of the quantizer and to the first and second stages, the feedback path including a digital-to-analog converter (DAC), the DAC including an input node coupled to the output node of the quantizer and an output node coupled to the input node of the amplifier.
    • 一些实施例包括使用包括积分器的第一级,耦合到第一级的第二级,包括放大器,第一电容器和与第一级串联耦合的第二电容器的第二级的装置和方法, 放大器的输入节点和输出节点之间的第一电容器,耦合到放大器的输出节点的量化器以及耦合到量化器的输出节点和第一和第二级的反馈路径,反馈路径包括 数模转换器(DAC),DAC包括耦合到量化器的输出节点的输入节点和耦合到放大器的输入节点的输出节点。
    • 73. 发明申请
    • デルタシグマ変調器
    • DELTA-SIGMA调制器
    • WO2012035674A1
    • 2012-03-22
    • PCT/JP2011/000347
    • 2011-01-24
    • パナソニック株式会社匂坂 雅彦足立 寿史
    • 匂坂 雅彦足立 寿史
    • H03M3/02
    • H03M3/362H03M3/366H03M3/452
    •  本発明のデルタシグマ変調器は、複数段の積分器(41~45)のうち、少なくとも1つの積分器(41,42)がオープンループゲインが可変である可変利得差動増幅器(46,47)で構成されるとともに、残りの積分器(43~45)がオープンループゲインが固定である固定利得差動増幅器(48~50)で構成されており、発振しているか否かを判定し、発振していることを判定したときには可変利得差動増幅器(46,47)のオープンループゲインを減少させるように制御するオープンループゲイン制御手段(62,63)を備える。
    • 在该Δ-Σ调制器中,多个积分器(41至45)中的一个或多个(41,42)使用具有可变开环增益的可变增益差分放大器(46,47),并且剩余积分器(43至45 )使用具有固定开环增益的固定增益差分放大器(48至50)。 该Δ-Σ调制器设置有确定是否发生谐振的开环增益控制装置(62和63),并且如果确定发生谐振,则控制可变增益差分放大器(46) 和47),以便降低其开环增益。
    • 74. 发明申请
    • INTEGRATOR
    • WO2010145836A1
    • 2010-12-23
    • PCT/EP2010/003692
    • 2010-06-18
    • ST-ERICSSON SAPUTTER, Bas
    • PUTTER, Bas
    • G05B11/40H03K7/06H03L7/24
    • H03L7/24G06G7/18H03K7/06H03M3/43H03M3/448H03M3/452
    • An integrator (100) comprises an amplification and phase shifting element (170) with a feedback path (130) forming a loop and comprising a capacitive element (140). An input signal is summed into the loop, and the loop is arranged to oscillate at an oscillation frequency higher than the frequencies of interest in the input signal. The loop includes a filter (160) for attenuating the oscillation signal to ensure that the amplification and phase shifting element (170) can provide amplification for the input signal. The input signal is integrated and the integrated signal perturbs the zero crossings of the oscillation signal.
    • 积分器(100)包括具有形成回路并包括电容元件(140)的反馈路径(130)的放大和相移元件(170)。 将输入信号相加到该环路中,并且该环路被布置成以比输入信号中感兴趣的频率高的振荡频率振荡。 该环路包括用于衰减振荡信号的滤波器(160),以确保放大和移相元件(170)能够为输入信号提供放大。 输入信号被积分,积分信号扰乱振荡信号的过零点。
    • 75. 发明申请
    • SYSTEMS AND METHODS FOR KICKBACK REDUCTION IN AN ADC
    • 在ADC中减少KICKBACK的系统和方法
    • WO2008094795A3
    • 2009-01-22
    • PCT/US2008051753
    • 2008-01-23
    • TEXAS INSTRUMENTS INCKOE WERN MINGPARK YONG-IN
    • KOE WERN MINGPARK YONG-IN
    • H03M3/00H03M1/12
    • H03M3/376H03M3/45H03M3/452
    • Various systems and methods for analog-to-digital conversion are disclosed. For example, some embodiments of the invention provide analog-to-digital conversion systems (400). The analog-to-digital conversion systems include a first integrator (410) and a second integrator (420), and a first summation element (450) and a second summation element (465). An output of the first summation element is electrically coupled to the first integrator, and an output of the first integrator is electrically coupled to the second integrator. An output of the second integrator is electrically coupled to the second summation element. The analog-to-digital conversion systems further include an analog-to-digital converter (440) that is electrically coupled to the first summation element via a digital-to-analog converter (430). An input (441) to the analog-to-digital conversion system is electrically coupled to the first summation element, and the input is electrically coupled to the second summation element via a kickback filter (401).
    • 公开了用于模数转换的各种系统和方法。 例如,本发明的一些实施例提供模拟 - 数字转换系统(400)。 模数转换系统包括第一积分器(410)和第二积分器(420),以及第一求和元件(450)和第二求和元件(465)。 第一求和元件的输出电耦合到第一积分器,并且第一积分器的输出电耦合到第二积分器。 第二积分器的输出电耦合到第二求和元件。 模数转换系统还包括经由数模转换器(430)电耦合到第一求和元件的模拟 - 数字转换器(440)。 模数转换系统的输入(441)电耦合到第一求和元件,并且该输入经由反冲滤波器(401)电耦合到第二求和元件。
    • 76. 发明申请
    • METHODS AND APPARATUS FOR A MULTI-MODE ANALOG-TO-DIGITAL CONVERTER
    • 用于多模式模数转换器的方法和装置
    • WO2008076519A2
    • 2008-06-26
    • PCT/US2007082585
    • 2007-10-26
    • FREESCALE SEMICONDUCTOR INCZHIXU ZHOUASCHIERI JULIANMIAILLE GERALD P
    • ZHIXU ZHOUASCHIERI JULIANMIAILLE GERALD P
    • H03M3/00
    • H03M3/392H03M3/43H03M3/452
    • A multi-mode analog-to-digital converter (100) includes a delta-sigma analog-to- digital converter circuit configured to receive the analog input (102) and produce a digital bit- stream (140) associated therewith, the delta-sigma analog-to-digital converter including at least one integrator configured to reset to an initial state in response to a reset signal. A digital filter circuit is configured to receive the digital bit-stream and produce two filtered outputs derived from the digital bit-stream. During one mode (e.g., a DC mode) the delta-sigma analog-to-digital converter circuit is configured to receive the reset signal and produce the digital bit-stream for a predetermined number of clock cycles, and the digital output corresponds to the first filtered output. In another mode (e.g., an AC mode), the delta-sigma analog-to-digital converter is configured to continuously produce the bit-stream, and the digital output corresponds to the second filtered output.
    • 多模式模数转换器(100)包括被配置为接收模拟输入(102)并产生与其相关联的数字位流(140)的Δ-Σ模数转换器电路, 西格玛模数转换器,包括至少一个积分器,其被配置为响应于复位信号复位到初始状态。 数字滤波器电路被配置为接收数字比特流并且产生从数字比特流导出的两个滤波的输出。 在一种模式(例如,DC模式)期间,Δ-Σ模数转换器电路被配置为接收复位信号并产生预定数量的时钟周期的数字位流,并且数字输出对应于 首先滤波输出。 在另一模式(例如,AC模式)中,Δ-Σ模数转换器被配置为连续产生比特流,并且数字输出对应于第二滤波输出。
    • 77. 发明申请
    • INPUT TRACKING HIGH-LEVEL MULTIBIT QUANTIZER FOR DELTA-SIGMA ADC
    • 用于DELTA-SIGMA ADC的输入跟踪高级多位量化器
    • WO2008028142A3
    • 2008-05-02
    • PCT/US2007077412
    • 2007-08-31
    • TEXAS INSTRUMENTS INCYANG YUQING
    • YANG YUQING
    • H03M1/66
    • H03M1/146H03M1/361H03M1/365H03M3/424H03M3/452
    • A quantization circuit includes a plurality of resistors (R-0 to R-15), a plurality of tap points (16-3 to 16-15), and a plurality of coarse comparators (21-3 to 21-15). Each coarse comparator has a first input coupled to an input voltage (V Qin ) and a second input coupled to a corresponding coarse tap point voltage. Each coarse comparator operates during a first phase to produce a "1 " only if the input voltage exceeds the corresponding coarse tap point voltage. A plurality of fine comparators (24-1 to 24-3) each have a first input coupled to the input voltage, and each fine comparator operates during a second phase to produce a fine output level indicative of whether the input voltage exceeds a corresponding tap point voltage of a group of tap points located immediately below the tap point connected to the highest coarse comparator producing a "1".
    • 量化电路包括多个电阻器(R-0至R-15),多个抽头点(16-3至16-15)以及多个粗略比较器(21-3至21-15)。 每个粗略比较器具有耦合到输入电压(V IN)的第一输入和耦合到对应的粗略抽头点电压的第二输入。 每个粗略比较器在第一阶段工作,只有当输入电压超过相应的粗抽头电压时才产生“1”。 多个精细比较器(24-1至24-3)各自具有耦合到输入电压的第一输入,并且每个精细比较器在第二阶段期间操作以产生指示输入电压是否超过对应抽头的精细输出电平 位于连接到最高粗比较器的抽头点正下方的一组抽头点的点电压产生“1”。
    • 80. 发明申请
    • LOW DISTORTION FEED-FORWARD DELTA-SIGMA MODULATOR
    • 低失真进给前置三角形调制器
    • WO2014022410A1
    • 2014-02-06
    • PCT/US2013/052748
    • 2013-07-30
    • QUALCOMM INCORPORATED
    • RAJAEE, OmidDAI, Liang
    • H03M3/00
    • H03M3/452
    • A low distortion feed forward delta sigma modulator includes a first adder operable to receive a feedback signal and an input signal. The modulator also includes a first integrator operable to receive an output from the first adder, and a second integrator operable to receive an output from the first integrator. The modulator further includes a second adder operable to receive a second integrated path from the second integrator, a first integrating path from the first integrator and a first summing path from the input signal. The modulator also has a last integrator operable to receive an output from the second adder.
    • 低失真前馈ΔΣ调制器包括可操作以接收反馈信号和输入信号的第一加法器。 调制器还包括可操作以接收来自第一加法器的输出的第一积分器和可操作以接收来自第一积分器的输出的第二积分器。 调制器还包括第二加法器,可操作以从第二积分器接收第二集成路径,来自第一积分器的第一积分路径和来自输入信号的第一求和路径。 调制器还具有可操作以接收来自第二加法器的输出的最后一个积分器。