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1. 发明申请

WO2004095512A2 SAMPLE AND HOLD CIRCUITS AND METHODS WITH OFFSET ERROR CORRECTION AND SYSTEMS USING THE SAME 审中-公开
标题翻译：使用偏移校正和校正的系统进行采样和保持电路和方法
公开(公告)号：WO2004095512A2
公开(公告)日：2004-11-04
申请号：PCT/US2004011527
申请日：2004-04-15
申请人： CIRRUS LOGIC INC , PRASAD AMMISETTI V , THOMPSON KARL , MELANSON JOHN LAURENCE , SOMAYAJULA SHYAM
发明人： PRASAD AMMISETTI V , THOMPSON KARL , MELANSON JOHN LAURENCE , SOMAYAJULA SHYAM
IPC分类号： G11B20/10 , G11C27/02 , H01L
CPC分类号： G11C27/024
摘要： A sample and hold circuit including a sampling capacitor for storing a sample of an input signal, an output stage for outputting the sample stored on the sampling capacitor; and input circuitry for sampling the input signal and storing the sample on the sampling capacitor. The input circuitry includes an autozeroing input buffer which selectively samples the input signal during a first operating phase and holds a sample of the input signal during a second operating phase. The autozeroing input buffer cancels any offset error. The input circuitry also includes switching circuitry for selectively coupling the sampling capacitor with an input of the sample and hold circuitry during the second operating phase and to an output of the autozeroing input buffer during the first operating phase.
摘要翻译：一种采样保持电路，包括用于存储输入信号的采样的采样电容器，用于输出存储在采样电容器上的样本的输出级; 以及用于对输入信号进行采样并将采样存储在采样电容器上的输入电路。输入电路包括自动调零输入缓冲器，其在第一操作阶段期间选择性地采样输入信号，并且在第二操作阶段期间保持输入信号的采样。自动归零输入缓冲器取消任何偏移误差。输入电路还包括用于在第二操作阶段期间将采样电容器与采样和保持电路的输入有选择地耦合的开关电路，以及在第一操作阶段期间自动调零输入缓冲器的输出。

2. 发明申请

WO2010025450A2 LED LIGHTING SYSTEM WITH ACCURATE CURRENT CONTROL 审中-公开
标题翻译： LED照明系统具有精确的电流控制
公开(公告)号：WO2010025450A2
公开(公告)日：2010-03-04
申请号：PCT/US2009/055515
申请日：2009-08-31
申请人： CIRRUS LOGIC, INC , MELANSON, John, Laurence
发明人： MELANSON, John, Laurence
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/0848 , H05B33/086 , Y02B20/347
摘要： A light emitting diode (LED) lighting system and method are disclosed. The LED lighting system and method include an LED controller to accurately control a current in an LED system The LED controller includes components to calculate, based on the current and an active time period of an LED current time period, an actual charge amount delivered to the LED system wherein the LED current time period is duty cycle modulated at a rate of greater than fifty (50) Hz and to utilize the actual charge amount to modify and provide a desired target charge amount to be delivered during a future active time period of the LED current tune period The LED system and method further involve components to compare the actual charge amount to a desired charge amount for the active time period and compensate for a difference between the actual charge amount and the desired charge amount during the future active time period.
摘要翻译：公开了一种发光二极管（LED）照明系统和方法。 LED照明系统和方法包括准确地控制LED系统中的电流的LED控制器。LED控制器包括基于LED当前时间段的当前时间和当前时间段来计算传送到LED系统的实际充电量的组件 LED系统，其中LED电流时间周期以大于五十（50）Hz的速率进行占空比调制，并且利用实际充电量来修改并提供期望的目标充电量，以在将来的有效时间段期间传送 LED电流调节周期LED系统和方法还涉及将实际电荷量与活动时间段期望的电荷量进行比较的部件，并补偿未来有效时间段内实际电荷量与期望电荷量之差。

3. 发明申请

WO2004095760A2 AUDIO DATA PROCESSING SYSTEMS AND METHODS UTILIZING HIGH OVERSAMPLING RATES 审中-公开
标题翻译：音频数据处理系统和利用高超频率的方法
公开(公告)号：WO2004095760A2
公开(公告)日：2004-11-04
申请号：PCT/US2004/005792
申请日：2004-02-26
申请人： CIRRUS LOGIC INC. , MELANSON, John, Laurence
发明人： MELANSON, John, Laurence
IPC分类号： H04L
CPC分类号： G10L19/038 , G10L19/008
摘要： A method of processing digital audio data includes receiving an input stream of audio data having a first quantization and a high oversampling rate. The input stream is requantized in a first processing block at the high oversampling rate to a second quantization. The requantized stream of audio data is processed in a second processing block at the high oversampling rate and the second quantization.
摘要翻译：一种处理数字音频数据的方法包括接收具有第一量化和高过采样速率的音频数据的输入流。将输入流以高过采样速率在第一处理块中重新量化为第二量化。音频数据的再量化流以高过采样速率和第二量化在第二处理块中进行处理。

4. 发明申请

WO2004095512A3 SAMPLE AND HOLD CIRCUITS AND METHODS WITH OFFSET ERROR CORRECTION AND SYSTEMS USING THE SAME 审中-公开
公开(公告)号：WO2004095512A3
公开(公告)日：2004-11-04
申请号：PCT/US2004/011527
申请日：2004-04-15
申请人： CIRRUS LOGIC, INC. , PRASAD, Ammisetti, V. , THOMPSON, Karl , MELANSON, John, Laurence , SOMAYAJULA, Shyam
发明人： PRASAD, Ammisetti, V. , THOMPSON, Karl , MELANSON, John, Laurence , SOMAYAJULA, Shyam
IPC分类号： G11C27/02
摘要： A sample and hold circuit including a sampling capacitor for storing a sample of an input signal, an output stage for outputting the sample stored on the sampling capacitor; and input circuitry for sampling the input signal and storing the sample on the sampling capacitor. The input circuitry includes an autozeroing input buffer which selectively samples the input signal during a first operating phase and holds a sample of the input signal during a second operating phase. The autozeroing input buffer cancels any offset error. The input circuitry also includes switching circuitry for selectively coupling the sampling capacitor with an input of the sample and hold circuitry during the second operating phase and to an output of the autozeroing input buffer during the first operating phase.

5. 发明申请

WO2010025450A3 LED LIGHTING SYSTEM WITH ACCURATE CURRENT CONTROL 审中-公开
标题翻译：具有精确电流控制的LED照明系统
公开(公告)号：WO2010025450A3
公开(公告)日：2010-05-20
申请号：PCT/US2009055515
申请日：2009-08-31
申请人： CIRRUS LOGIC INC , MELANSON JOHN LAURENCE
发明人： MELANSON JOHN LAURENCE
IPC分类号： H05B33/08 , H03M3/02 , H03M3/04
CPC分类号： H05B33/0839 , H05B33/0818 , H05B33/0848 , H05B33/086 , Y02B20/347
摘要： A light emitting diode (LED) lighting system and method are disclosed. The LED lighting system and method include an LED controller to accurately control a current in an LED system The LED controller includes components to calculate, based on the current and an active time period of an LED current time period, an actual charge amount delivered to the LED system wherein the LED current time period is duty cycle modulated at a rate of greater than fifty (50) Hz and to utilize the actual charge amount to modify and provide a desired target charge amount to be delivered during a future active time period of the LED current tune period The LED system and method further involve components to compare the actual charge amount to a desired charge amount for the active time period and compensate for a difference between the actual charge amount and the desired charge amount during the future active time period.
摘要翻译：公开了一种发光二极管（LED）照明系统和方法。该LED照明系统和方法包括用于精确控制LED系统中的电流的LED控制器。该LED控制器包括用于基于LED电流时间段的电流和活动时间段计算传送给 LED系统，其中LED电流时间周期以大于五十（50）Hz的速率被占空比调制并且利用实际电荷量来修改并提供期望的目标电荷量，该期望的目标电荷量在 LED电流调谐时段LED系统和方法还包括将实际电荷量与活动时间段期望的电荷量进行比较并且补偿未来活动时间段期间实际电荷量与期望电荷量之间的差异的部件。

6. 发明申请

WO2005001897A2 NON-INVASIVE, LOW PIN COUNT TEST CIRCUITS AND METHODS UTILIZING EMULATED STRESS CONDITIONS 审中-公开
标题翻译：非入网，低PIN计数测试电路和使用模拟应力条件的方法
公开(公告)号：WO2005001897A2
公开(公告)日：2005-01-06
申请号：PCT/US2004/017798
申请日：2004-06-04
申请人： CIRRUS LOGIC, INC. , KEJARIWAL, Murari , MELANSON, John, Laurence , PRASAD, Ammisetti, V. , WU, Xiaohong, Sherry
发明人： KEJARIWAL, Murari , MELANSON, John, Laurence , PRASAD, Ammisetti, V. , WU, Xiaohong, Sherry
IPC分类号： H01L
CPC分类号： G01R31/2884
摘要： A method of testing an internal block of an integrated circuit includes testing an internal block under a selected operating condition by setting a selected operating parameter to a value emulating operation of the internal block under another operating condition to detect potential failure of the internal block under the another operating condition.
摘要翻译：一种测试集成电路的内部块的方法包括在所选择的操作条件下测试内部块，在另一操作条件下将所选择的操作参数设置为内部块的值仿真操作，以检测内部块的潜在故障另一个操作条件。

7. 发明申请

WO2005001897A3 NON-INVASIVE, LOW PIN COUNT TEST CIRCUITS AND METHODS UTILIZING EMULATED STRESS CONDITIONS 审中-公开
标题翻译：非入网，低PIN计数测试电路和使用模拟应力条件的方法
公开(公告)号：WO2005001897A3
公开(公告)日：2007-03-29
申请号：PCT/US2004017798
申请日：2004-06-04
申请人： CIRRUS LOGIC INC , KEJARIWAL MURARI , MELANSON JOHN LAURENCE , PRASAD AMMISETTI V , WU XIAOHONG SHERRY
发明人： KEJARIWAL MURARI , MELANSON JOHN LAURENCE , PRASAD AMMISETTI V , WU XIAOHONG SHERRY
IPC分类号： G01R31/02 , G01R31/28
CPC分类号： G01R31/2884
摘要： A method of testing an internal block of an integrated circuit includes testing an internal block under a selected operating condition by setting a selected operating parameter to a value emulating operation of the internal block under another operating condition to detect potential failure of the internal block under the another operating condition.
摘要翻译：一种测试集成电路的内部块的方法包括在所选择的操作条件下测试内部块，在另一操作条件下将所选择的操作参数设置为内部块的值仿真操作，以检测内部块的潜在故障另一个操作条件。

8. 发明申请

WO2004079915A3 FEEDBACK STEERING DELTA-SIGMA MODULATORS AND SYSTEMS USING THE SAME 审中-公开
标题翻译：反馈转向三角形调制器和使用它的系统
公开(公告)号：WO2004079915A3
公开(公告)日：2005-10-06
申请号：PCT/US2004006881
申请日：2004-03-05
申请人： CIRRUS LOGIC INC , MELANSON JOHN LAURENCE , FEI XIAOFAN , GABORIAU JOHANN G
发明人： MELANSON JOHN LAURENCE , FEI XIAOFAN , GABORIAU JOHANN G
IPC分类号： H03M20060101 , H03M3/00 , H03M7/32 , H03M7/34 , H03M7/36 , H03M7/38
CPC分类号： H03M7/3006 , H03M7/3011 , H03M7/3026 , H03M7/3033 , H03M7/3037
摘要： A digital to analog converter including an input for receiving an input signal, a ramp generator, and a delta-sigma modulator responsive to the input signal and an output of the ramp generator. An order of a noise shaping transfer function of the delta-sigma modulator is response to a level of the output of the ramp generator.
摘要翻译：数模转换器，包括用于接收输入信号的输入端，斜坡发生器和响应于输入信号和斜坡发生器输出的Δ-Σ调制器。 Δ-Σ调制器的噪声整形传递函数的顺序响应于斜坡发生器的输出电平。

9. 发明申请

WO2004094965A2 NOISE-SHAPERS AND FILTERS WITH NOISE SHAPING QUANTIZERS AND SYSTEMS AND METHODS USING THE SAME 审中-公开
标题翻译：噪声成像器和具有噪声成像量子和系统的滤波器及其使用方法
公开(公告)号：WO2004094965A2
公开(公告)日：2004-11-04
申请号：PCT/US2004/005733
申请日：2004-02-26
申请人： CIRRUS LOGIC, INC. , MELANSON, John, Laurence
发明人： MELANSON, John, Laurence
IPC分类号： G01H
CPC分类号： H03H17/04 , H03B29/00 , H03M7/3028 , H03M7/304
摘要： A noise shaping system including an inner loop and outer noise shaping loops. The inner noise shaping loop includes an inner loop filter and a quantizer for quantizing an output of the inner loop filter. The outer noise shaping loop includes an outer loop filter having an input receiving feedback from the quantizer of the inner noise shaping loop and an output driving an input of the inner loop filter of the inner noise shaping loop.
摘要翻译：一种噪声整形系统，包括内环和外噪声整形环。内部噪声整形环路包括用于量化内部环路滤波器的输出的内部环路滤波器和量化器。外部噪声整形回路包括外部环路滤波器，其具有接收来自内部噪声整形环路的量化器的反馈的输入和驱动内部噪声整形环路的内部环路滤波器的输入的输出。

10. 发明申请

WO2004094965A3 NOISE-SHAPERS AND FILTERS WITH NOISE SHAPING QUANTIZERS AND SYSTEMS AND METHODS USING THE SAME 审中-公开
标题翻译：噪声形状和滤波器与噪声成像量子和系统及其使用方法
公开(公告)号：WO2004094965A3
公开(公告)日：2005-05-26
申请号：PCT/US2004005733
申请日：2004-02-26
申请人： CIRRUS LOGIC INC , MELANSON JOHN LAURENCE
发明人： MELANSON JOHN LAURENCE
IPC分类号： H03B29/00 , H03H17/04 , H03M3/02 , H03M7/36 , A61F11/06 , H04B15/00
CPC分类号： H03H17/04 , H03B29/00 , H03M7/3028 , H03M7/304
摘要： A noise shaping system including an inner loop and outer noise shaping loops. The inner noise shaping loop includes an inner loop filter and a quantizer for quantizing an output of the inner loop filter. The outer noise shaping loop includes an outer loop filter having an input receiving feedback from the quantizer of the inner noise shaping loop and an output driving an input of the inner loop filter of the inner noise shaping loop.
摘要翻译：噪声整形系统，包括内环和外噪声整形环。内部噪声整形环路包括用于量化内部环路滤波器的输出的内部环路滤波器和量化器。外部噪声整形环路包括外部环路滤波器，其具有接收来自内部噪声整形环路的量化器的反馈的输入和驱动内部噪声整形环路的内部环路滤波器的输入的输出。

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