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1. 发明申请

WO2003047101A1 MODULATED RADIO FREQUENCY SIGNAL GENERATION METHOD AND MODULATED SIGNAL SOURCE 审中-公开
标题翻译：调制无线电频率信号生成方法和调制信号源
公开(公告)号：WO2003047101A1
公开(公告)日：2003-06-05
申请号：PCT/US2002/034483
申请日：2002-10-28
申请人： MOTOROLA, INC.
发明人： WAGH, Poojan, A. , MIDYA, Pallab , RAKERS, Patrick
IPC分类号： H03K7/08
CPC分类号： H03K7/00 , H04B1/04
摘要： An in-phase pulse signal modulator (30a) of the modulated signal source provides an in-phase pulse modulated signal in response to a reception of a baseband in-phase signal and an in-phase clock signal with the in-phase clock signal and the in-phase pulse modulated signal being synchronized. A quadrature pulse signal modulator (30b) of the modulated signal source provides a quadrature pulse modulated signal in response to a reception of a baseband quadrature signal and a quadrature clock signal with the quadrature clock signal and the quadrature pulse modulated signal being synchronized. A switch signal generator (40) of the modulated signal source generates an in-phase switch signal and a quadrature switch signal in response to a reception of the in-phase clock signal, the in-phase pulse modulated signal, the quadrature clock signal, and the quadrature pulse modulated signal.
摘要翻译：调制信号源的同相脉冲信号调制器（30a）响应于基带同相信号和具有同相时钟信号的同相时钟信号的接收而提供同相脉冲调制信号，以及同步脉冲调制信号被同步。调制信号源的正交脉冲信号调制器（30b）响应于正交时钟信号和正交脉冲调制信号被同步的基带正交信号和正交时钟信号的接收而提供正交脉冲调制信号。调制信号源的开关信号发生器（40）响应于同相时钟信号，同相脉冲调制信号，正交时钟信号的接收，产生同相开关信号和正交开关信号，和正交脉冲调制信号。

2. 发明申请

WO2003041269A1 VARIABLE FREQUENCY SWITCHING AMPLIFIER AND METHOD THEREFOR 审中-公开
标题翻译：可变频率开关放大器及其方法
公开(公告)号：WO2003041269A1
公开(公告)日：2003-05-15
申请号：PCT/US2002/033081
申请日：2002-10-16
申请人： MOTOROLA, INC., A CORPORATION OF THE STATE OF DELAWARE
发明人： ROECKNER, William, , MIDYA, Pallab , BUCHWALD, Gregory
IPC分类号： H03F3/217
CPC分类号： H03F3/2171 , H04B15/04
摘要： A switching amplifier (20) generates noise at its switching frequency and harmonics thereof. The noise at these harmonics, for an audio amplifier, will be generated with significant amplitude in the AM band. Thus, an AM tuner (12) will experience interference problems if the tuner frequency is sufficiently close to one of these harmonics. To avoid this problem the switching frequency of the switching amplifier is chosen based on the tuner frequency. Thus, the switching frequency is chosen to avoid having harmonics at or too near the chosen tuner frequency. The switching amplifier is disabled when the tuner is in seek or scan mode. Instead of using the tuner frequency to determine what switching frequency should be used to avoid interference, the interference can be detected directly to cause a change in the switching frequency and thus remove the interference.
摘要翻译：开关放大器（20）以其开关频率和谐波产生噪声。对于音频放大器，这些谐波的噪声将在AM频带中以显着的幅度产生。因此，如果调谐器频率足够接近这些谐波之一，则AM调谐器（12）将经历干扰问题。为了避免这个问题，基于调谐器频率来选择开关放大器的开关频率。因此，选择开关频率以避免在所选择的调谐器频率处或谐波附近。当调谐器处于寻线或扫描模式时，开关放大器被禁止。不是使用调谐器频率来确定应该使用什么开关频率来避免干扰，所以可以直接检测干扰，导致开关频率的变化，从而消除干扰。

3. 发明申请

WO2002099966A1 SWITCHING AMPLIFIER HAVING DIGITAL CORRECTION AND METHOD THEREFOR 审中-公开
标题翻译：具有数字校正功能的切换放大器及其方法
公开(公告)号：WO2002099966A1
公开(公告)日：2002-12-12
申请号：PCT/US2002/013214
申请日：2002-04-24
申请人： MOTOROLA, INC.
发明人： MIDYA, Pallab , ROECKNER, William, J. , WAGH, Poojan, A.
IPC分类号： H03F3/217
CPC分类号： H03F3/2175
摘要： A switching amplifier (15) includes a power stage (18) and a digital correction circuit (16). The digital correction circuit (16) is for correcting nonlinearity and power supply noise introduced into a digital signal during power stage amplification. The digital correction circuit (16) receives a digital pulse modulated input signal from a processor (14) and an amplified pulse modulated output signal from the power stage (18), and performs a discrete-time pulse edge correction on the digital pulse modulated input signal to provide a corrected digital pulse modulated signal. The corrected digital pulse modulated signal is used as an input for the power stage (18).
摘要翻译：开关放大器（15）包括功率级（18）和数字校正电路（16）。数字校正电路（16）用于校正在功率级放大期间引入数字信号的非线性和电源噪声。数字校正电路（16）从处理器（14）接收数字脉冲调制输入信号和来自功率级（18）的经放大的脉冲调制输出信号，并对数字脉冲调制输入端执行离散时间脉冲边缘校正信号以提供校正的数字脉冲调制信号。校正的数字脉冲调制信号用作功率级（18）的输入。

4. 发明申请

WO2004030223A2 FULL BRIDGE INTEGRAL NOISE SHAPING FOR QUANTIZATION OF PULSE WIDTH MODULATION SIGNALS 审中-公开
标题翻译：用于量化脉冲宽度调制信号的全桥整体噪声形状
公开(公告)号：WO2004030223A2
公开(公告)日：2004-04-08
申请号：PCT/US2003/027431
申请日：2003-08-22
申请人： MOTOROLA, INC.
发明人： MIDYA, Pallab , ROECKNER, William, C.
IPC分类号： H03M7/00
CPC分类号： H03M1/0682 , H03F3/2173 , H03F2200/351 , H03M1/504
摘要： Systems and methods are described for full bridge integral noise shaping for quantization of pulse width modulated signals. A method for full bridge integral noise shaping comprises: receiving a first and a second reference PWM signal (401, 402); summing the first and second reference PWM signals with a quantization error correction (504); quantizing the sum into a first and a second output PWM signal (404, 405); differentially integrating the first and second reference PWM signals and the first and second output PWM signals according to a full bridge integral noise shaping algorithm to obtain the quantization error correction. An apparatus for performing a full bridge integralnoise shaping quantization of a pulse modulated signal, includes: a single-ended to differential conversion circuit (203); and a full bridge INS quantizer circuit (403), coupled to the single-ended to differential conversion circuit.
摘要翻译：描述了用于量化脉冲宽度调制信号的全桥积分噪声整形的系统和方法。一种用于全桥积分噪声整形的方法，包括：接收第一和第二参考PWM信号（401,402）; 用量化误差校正（504）对第一和第二参考PWM信号求和; 将所述和量化为第一和第二输出PWM信号（404,405）; 根据全桥积分噪声整形算法对第一和第二参考PWM信号以及第一和第二输出PWM信号进行差分积分以获得量化误差校正。一种用于执行全桥积分整形脉冲调制信号的量化的装置，包括：单端到差分转换电路（203）; 以及耦合到单端到差分转换电路的全桥INS量化器电路（403）。

5. 发明申请

WO2003061136A1 METHOD AND APPARATUS FOR GENERATING A PULSE WIDTH MODULATED SIGNAL 审中-公开
标题翻译：用于产生脉冲宽度调制信号的方法和装置
公开(公告)号：WO2003061136A1
公开(公告)日：2003-07-24
申请号：PCT/US2002/039957
申请日：2002-12-13
申请人： MOTOROLA, INC.
发明人： ROECKNER, William, J. , MIDYA, Pallab , WAGH, Poojan, A. , RINDERKNECHT, William, J.
IPC分类号： H03M5/08
CPC分类号： H03F3/2175 , H03F2200/331 , H03M1/822 , H03M5/08
摘要： A method and apparatus for a pulse width modulated (PWM) signal (30, 130) is provided. The input is a digital signal which is a modulated signal (24, 124). In the illustrated form, the modulated input signal is either a PDM signal or a PCM signal. In one embodiment of the present invention a PCM to PWM converter (16, 116) includes correction of duty ratio circuitry (48). The methodology used may include recursion on the values obtained after prediction, interpolation, and correction. The digital to analog conversion system (10) uses a PDM to PWM converter (20) which operates in an all digital domain and includes no analog circuitry.
摘要翻译：提供了一种用于脉宽调制（PWM）信号（30,130）的方法和装置。输入是作为调制信号（24,124）的数字信号。在所示的形式中，调制输入信号是PDM信号或PCM信号。在本发明的一个实施例中，PCM至PWM转换器（16,116）包括占空比电路（48）的校正。所使用的方法可以包括在预测，插值和校正之后获得的值的递归。数模转换系统（10）使用PDM到PWM转换器（20），其在全数字域中工作，并且不包括模拟电路。

6. 发明申请

WO1998005048A1 LOW RADIATION PLANAR INDUCTOR/TRANSFORMER AND METHOD 审中-公开
标题翻译：低辐射平面电感器/变压器和方法
公开(公告)号：WO1998005048A1
公开(公告)日：1998-02-05
申请号：PCT/US1997011900
申请日：1997-07-10
申请人： MOTOROLA INC.
发明人： MOTOROLA INC. , MIDYA, Pallab , SCHAMBERGER, Mark, Allen
IPC分类号： H01F27/28
CPC分类号： H01F27/2804 , H01F2017/0086
摘要： The present invention provides a planar magnetic field inductor/transformer (100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1700, 1800) and method (1900, 2000) that has a plurality of at least three planar loops/spiral conductor coils (106, 108, 110, 112) which are arranged one after another in a simple/compound loop fashion. The loops (106, 108, 110, 112) carry a current produced by a signal source, and the plurality of planar adjacent loops/spiral conductor coils (106, 108, 110, 112) are arranged to maximize cancellation of a moment of the plurality of loops/spiral conductor coils (106, 108, 110, 112) over a predetermined range.
摘要翻译：本发明提供一种平面磁场电感器/变压器（100,200,300,400,500,600,700,800,900,1000,1700,1800）和方法（1900,2000），其至少具有多个三个平面回路/螺旋导体线圈（106,108,110,112），其以简单/复合回路方式一个接一个地布置。环（106,108,110,112）承载由信号源产生的电流，并且多个平面相邻的环/螺旋导体线圈（106,108,110,112）被布置成最大限度地消除了在预定范围内的多个环/螺旋导体线圈（106,108,110,112）。

7. 发明申请

WO2004062088A2 POWER AMPLIFIER CIRCUIT AND METHOD USING BANDLIMITED SIGNAL COMPONENT ESTIMATES 审中-公开
标题翻译：功率放大器电路和使用带限信号分量估计的方法
公开(公告)号：WO2004062088A2
公开(公告)日：2004-07-22
申请号：PCT/US2003/038892
申请日：2003-12-05
申请人： MOTOROLA INC.
发明人： MIDYA, Pallab , GROSSPIETSCH, John , WASHINGTON, Michael
IPC分类号： H03F
CPC分类号： H03F3/211 , H03F1/0222 , H03F1/0277 , H03G3/004
摘要： A power amplifier circuit for receiving a variable envelope input signal and for producing an amplified output signal is provided. The power amplifier circuit includes an envelope approximation circuit, an envelope amplifier circuit, a phasor approximation circuit, a quadrature modulation circuit, and a power amplifier. The envelope approximation circuit receives the variable envelope input signal and produces a bandlimited estimated envelope signal, corresponding to the amplitude of the variable envelope input signal. The bandlimited estimated envelope signal is then amplified by an envelope amplifier circuit. The amplified envelope signal is then coupled to the supply input of the power amplifer. The phasor approximation circuit receives the variable envelope input signal and produces a bandlimited estimated phasor signal. The quadrature modulation circuit receives the estimated phase signal and produces a modulated phase signal. The modulated phase signal is then coupled to the signal input of the power amplifier. The power amplifier then produces an amplified output signal.
摘要翻译：提供了用于接收可变包络输入信号并用于产生放大的输出信号的功率放大器电路。功率放大器电路包括包络近似电路，包络放大器电路，相量近似电路，正交调制电路和功率放大器。包络近似电路接收可变包络输入信号并产生对应于可变包络输入信号的振幅的带限估计包络信号。带限估计包络信号然后由包络放大器电路放大。然后放大的包络信号被耦合到功率放大器的电源输入端。相量近似电路接收可变包络输入信号并产生带限估计相量信号。正交调制电路接收估计的相位信号并产生调制的相位信号。然后调制后的相位信号被耦合到功率放大器的信号输入端。功率放大器然后产生放大的输出信号。

8. 发明申请

WO2003021770A1 CIRCUITRY FOR CREATING A SPECTRAL NULL IN A DIFFERENTIAL OUTPUT SWITCHING AMPLIFIER AND METHOD THEREFOR 审中-公开
标题翻译：用于在差分输出开关放大器中创建光谱空位的电路及其方法
公开(公告)号：WO2003021770A1
公开(公告)日：2003-03-13
申请号：PCT/US2002/025905
申请日：2002-08-13
申请人： MOTOROLA, INC.
发明人： MIDYA, Pallab , ROECKNER, William
IPC分类号： H03F3/217
CPC分类号： H03F3/2173 , H03F3/2171 , H03F2200/342 , H03F2200/345 , H03F2200/351
摘要： A modulated signal is connected to a full bridge switching amplifier (16, 18, 28, 30) and is compensated to remove a predetermined frequency and its odd harmonics. The compensation inverts and delays (26) a signal that is connected to a first half of the full bridge and applies the delayed inverted signal to a second half of the full bridge. By delaying by an odd number of half cycles, the carrier and its odd harmonics are cancelled because the same signal exists on both sides of the full bridge output. When these two same signals are subtracted by the full bridge action, the carrier and odd harmonics are suppressed. Spectral nulls may be provided for various signal applications, not just audio, and when various types of modulation techniques are used, such as PWM and PDM.
摘要翻译：调制信号连接到全桥开关放大器（16,18,28,30），并被补偿以去除预定频率及其奇次谐波。补偿反相并延迟（26）连接到全桥的前半部分的信号，并将延迟的反相信号施加到全桥的后半部分。通过延迟奇数半周期，载波及其奇次谐波被消除，因为在全桥输出的两侧存在相同的信号。当通过全桥动作减去这两个相同的信号时，载波和奇次谐波被抑制。可以为各种信号应用（不仅仅是音频）以及当使用各种类型的调制技术（例如PWM和PDM）时提供频谱零点。

9. 发明申请

WO2005104377A2 A METHOD AND SYSTEM FOR ANALOG TO DIGITAL CONVERSION USING DIGITAL PULSE WIDTH MODULATION (PWM) 审中-公开
标题翻译：使用数字脉冲宽度调制（PWM）模拟数字转换的方法和系统
公开(公告)号：WO2005104377A2
公开(公告)日：2005-11-03
申请号：PCT/US2005/007848
申请日：2005-03-10
申请人： MOTOROLA, INC., A CORPORATION OF THE STATE OF DELAWARE , MIDYA, Pallab , MILLER, Matthew R., , RAKERS, Patrick L.,
发明人： MIDYA, Pallab , MILLER, Matthew R., , RAKERS, Patrick L.,
IPC分类号： H03M1/12
CPC分类号： H03M3/00
摘要： A system and method for analog-to-digital conversion using digital pulse width modulation (PWM) is disclosed. The method and system according to the disclosed invention converts an analog input signal to a digital signal in pulse code modulated (PCM) form. The disclosed invention uses a feedback circuit to perform PWM of the analog input signal. The PWM signal is then decimated to obtain the digital signal in PCM form. The system according to the disclosed invention requires lower operating frequency and dissipates lesser power than prior art systems providing the same sampling frequency and resolution. The operation at a lower frequency is achieved by obtaining two samples from every pulse of the PWM signal; the first sample being obtained from the right duty ratio, and the second sample being obtained form the left duty ratio. Further, the disclosed invention has lesser implementation complexity and higher signal-to-noise ratio than prior art.
摘要翻译：公开了一种使用数字脉宽调制（PWM）进行模数转换的系统和方法。根据所公开的发明的方法和系统将模拟输入信号转换成脉冲编码调制（PCM）形式的数字信号。所公开的发明使用反馈电路来执行模拟输入信号的PWM。然后抽取PWM信号以获得PCM形式的数字信号。根据所公开的发明的系统需要更低的工作频率并且消耗比提供相同采样频率和分辨率的现有技术系统更小的功率。通过从PWM信号的每个脉冲获得两个采样来实现较低频率的操作; 从正确的占空比获得第一个样品，并且从左占空比获得第二个样品。此外，所公开的发明比现有技术具有较小的实现复杂度和更高的信噪比。

10. 发明申请

WO1998034286A1 PULSE-POSITION-MODULATION DRIVING FOR PIEZOELECTRIC TRANSFORMERS 审中-公开
标题翻译：用于压电变压器的脉冲位置调制驱动
公开(公告)号：WO1998034286A1
公开(公告)日：1998-08-06
申请号：PCT/US1997020384
申请日：1997-11-04
申请人： MOTOROLA INC.
发明人： MOTOROLA INC. , HUANG, Jin , MIDYA, Pallab , MANCINI, Brian, M.
IPC分类号： H01L41/08
CPC分类号： H01L41/044 , H01L41/107
摘要： A transformer circuit (10) for a piezoelectric transformer (12) having dual inputs which can piezoelectrically interfere with one another to provide adjustable output gain. The transformer circuit (10) provides two pulse-position-modulated input signals (18, 20) which are substantially identical waveforms, but being phase shifted from one another. When the signals (18, 20) constructively interfere maximum gain is achieved. When the two signals (18, 20) destructively interfere minimum gain is achieved. The waveforms may be of any arbitrary type including square, sine, triangle, sawtooth or irregular. Both input signals (18, 20) are at a resonant frequency of the piezoelectric transformer (12) and have a fifty percent duty cycle so as to always provide highest efficiency within the transformer (12). In addition, when the two input signals (18, 20) destructively interfere with each other piezoelectrically, the input impedance of the transformer (12) rises so as to lessen power dissipation within the transformer (12) which subsequently reduces adverse heating effects.
摘要翻译：一种用于压电变压器（12）的变压器电路（10），具有可以彼此压电干扰以提供可调输出增益的双输入。变压器电路（10）提供两个脉冲位置调制的输入信号（18,20），它们是基本相同的波形，但彼此相移。当信号（18,20）构造上干扰最大增益时。当两个信号（18,20）破坏性地干扰最小增益时。波形可以是包括正方形，正弦，三角形，锯齿形或不规则的任意类型。两个输入信号（18,20）处于压电变压器（12）的谐振频率处，并具有百分之五十的占空比，从而始终在变压器（12）内提供最高的效率。此外，当两个输入信号（18,20）以压电方式相互干涉地干扰时，变压器（12）的输入阻抗上升，以便减小变压器（12）内的功率耗散，从而降低不利的加热效应。

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