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1. 发明申请

US20150301077A1 SYSTEMS AND METHODS FOR DETERMINING ACCELERATION BASED ON PHASE DEMODULATION OF AN ELECTRICAL SIGNAL 审中-公开
标题翻译：基于电信号相位解调的确定加速度的系统和方法
公开(公告)号：US20150301077A1
公开(公告)日：2015-10-22
申请号：US14686834
申请日：2015-04-15
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Anindya Bhattacharya , Roderick D. Holley , Ruoxin Jiang , Stephen T. Hodapp , John C. Tucker
IPC分类号： G01P15/125
CPC分类号： G01P15/125
摘要： In accordance with embodiments of the present disclosure, an apparatus for measuring acceleration may include a spring-mounted mass, a positional encoder configured to measure a position of the spring-mounted mass and output one or more signals indicative of a sine and a cosine of the position, a driver to set and maintain an oscillation of the spring-mounted mass, and a decoder configured to process the one or more signals to calculate an acceleration of the spring-mounted mass.
摘要翻译：根据本公开的实施例，用于测量加速度的装置可以包括弹簧安装的质量块，位置编码器被配置为测量弹簧安装质量块的位置，并输出一个或多个指示正弦和余弦的信号所述位置，设置和保持所述弹簧安装的质量的振荡的驱动器，以及被配置为处理所述一个或多个信号以计算所述弹簧安装的质量块的加速度的解码器。

2. 发明申请

US20150171889A1 LOW POWER ANALOG-TO-DIGITAL CONVERTER FOR SENSING GEOPHONE SIGNALS 有权
标题翻译：用于感应地球信号的低功率模拟数字转换器
公开(公告)号：US20150171889A1
公开(公告)日：2015-06-18
申请号：US14636417
申请日：2015-03-03
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Rahul Singh , Prashanth Drakshapalli , Dale Brummel , Stephen T. Hodapp
IPC分类号： H03M3/00 , G01V1/18
CPC分类号： G01V1/181 , H03M3/424 , H03M3/45 , H03M3/454
摘要： A low power analog-to-digital converter configured to sense sensor signals may include a loop filter and a feedback digital-to-analog converter. The loop filter may have a loop filter input configured to receive an input current signal from a sensor and generate an output signal responsive to the input current signal. The feedback digital-to-analog converter may have a feedback output configured to generate a current-mode or charge-mode feedback output signal responsive to the output signal, the feedback output coupled to the loop filter input in order to combine the input current signal and the feedback output signal at the input.
摘要翻译：被配置为感测传感器信号的低功率模数转换器可以包括环路滤波器和反馈数模转换器。环路滤波器可以具有环路滤波器输入，其被配置为从传感器接收输入电流信号，并响应于输入电流信号产生输出信号。反馈数模转换器可以具有被配置为响应于输出信号产生电流模式或电荷模式反馈输出信号的反馈输出，反馈输出耦合到环路滤波器输入，以便组合输入电流信号和输入端的反馈输出信号。

3. 发明授权

US10571484B2 Systems and methods for determining acceleration based on phase demodulation of an electrical signal 有权
公开(公告)号：US10571484B2
公开(公告)日：2020-02-25
申请号：US14686834
申请日：2015-04-15
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Anindya Bhattacharya , Roderick D. Holley , Ruoxin Jiang , Stephen T. Hodapp , John C. Tucker
IPC分类号： G01P15/125
摘要： In accordance with embodiments of the present disclosure, an apparatus for measuring acceleration may include a spring-mounted mass, a positional encoder configured to measure a position of the spring-mounted mass and output one or more signals indicative of a sine and a cosine of the position, a driver to set and maintain an oscillation of the spring-mounted mass, and a decoder configured to process the one or more signals to calculate an acceleration of the spring-mounted mass.

4. 发明授权

US09379732B2 Delta-sigma modulator with reduced integrator requirements 有权
标题翻译：降低积分器要求的Delta-Σ调制器
公开(公告)号：US09379732B2
公开(公告)日：2016-06-28
申请号：US14845899
申请日：2015-09-04
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Stephen T. Hodapp
IPC分类号： H03M1/30 , H03M3/00
CPC分类号： H03M3/30 , H03M3/436 , H03M3/44 , H03M3/464
摘要： Requirements placed on the first integrator of a filter in a continuous-time delta-feedback modulator may be reduced by using circuitry to reduce the speed of a signal provided to the first integrator of the modulator. The reduction in speed applied to the signal received at the first integrator may then be compensated with circuitry elsewhere in the modulator, such that the net effect of the slow down and speed up of signals does not affect the output of the modulator. The sigma-delta modulator may be implemented in converters, such as an analog-to-digital converter (ADC).
摘要翻译：通过使用电路来降低提供给调制器的第一积分器的信号的速度，可以减少在连续时间增量反馈调制器中对滤波器的第一积分器的要求。然后可以利用在调制器其他地方的电路补偿施加到在第一积分器处接收的信号的速度的降低，使得信号的减速和加速的净效应不影响调制器的输出。 Σ-Δ调制器可以在诸如模数转换器（ADC）的转换器中实现。

5. 发明授权

US09335429B2 Low power analog-to-digital converter for sensing geophone signals 有权
标题翻译：用于感应地震检波器信号的低功耗模数转换器
公开(公告)号：US09335429B2
公开(公告)日：2016-05-10
申请号：US14636417
申请日：2015-03-03
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Rahul Singh , Prashanth Drakshapalli , Dale Brummel , Stephen T. Hodapp
IPC分类号： H03M3/00 , G01V1/18
CPC分类号： G01V1/181 , H03M3/424 , H03M3/45 , H03M3/454
摘要： A low power analog-to-digital converter configured to sense sensor signals may include a loop filter and a feedback digital-to-analog converter. The loop filter may have a loop filter input configured to receive an input current signal from a sensor and generate an output signal responsive to the input current signal. The feedback digital-to-analog converter may have a feedback output configured to generate a current-mode or charge-mode feedback output signal responsive to the output signal, the feedback output coupled to the loop filter input in order to combine the input current signal and the feedback output signal at the input.
摘要翻译：被配置为感测传感器信号的低功率模数转换器可以包括环路滤波器和反馈数模转换器。环路滤波器可以具有环路滤波器输入，其被配置为从传感器接收输入电流信号，并响应于输入电流信号产生输出信号。反馈数模转换器可以具有被配置为响应于输出信号产生电流模式或电荷模式反馈输出信号的反馈输出，反馈输出耦合到环路滤波器输入，以便组合输入电流信号和输入端的反馈输出信号。

6. 发明授权

US09263964B1 Systems and methods for low-power lamp compatibility with an electronic transformer 有权
标题翻译：与电子变压器低功率灯兼容的系统和方法
公开(公告)号：US09263964B1
公开(公告)日：2016-02-16
申请号：US13972102
申请日：2013-08-21
申请人： Cirrus Logic, Inc.
发明人： Michael A. Kost , Wesley L. Mokry , Prashanth Drakshapalli , Stephen T. Hodapp , Firas Azrai
IPC分类号： H05B37/00 , H02M7/06 , H05B33/08
CPC分类号： H02M7/06 , H02M1/36 , H02M2001/0006 , H05B33/0809 , H05B33/0815
摘要： In accordance with systems and methods of the present disclosure, an apparatus for providing compatibility between a load having a reactive impedance and a secondary winding of an electronic transformer may include a power converter and a circuit. The power converter may be configured to transfer electrical energy from the secondary winding to the load. The circuit may be configured to charge an energy storage device coupled to the power converter following start-up of the electronic transformer in order to increase a voltage of the energy storage device to at least a voltage level sufficient for the electronic transformer to enter steady-state operation.
摘要翻译：根据本公开的系统和方法，用于提供具有无功阻抗的负载和电子变压器的次级绕组之间的兼容性的装置可以包括功率转换器和电路。功率转换器可以被配置为将电能从次级绕组传递到负载。电路可以被配置为对电子变压器起动之后耦合到功率转换器的能量存储装置进行充电，以便将能量存储装置的电压增加到至少足以使电子变压器进入稳定电压的电压，状态操作。

7. 发明授权

US09407279B2 Systems and methods of element scrambling for compensation and calibration of analog-to-digital converter feedback 有权
标题翻译：元件加扰的系统和方法用于模数转换器反馈的补偿和校准
公开(公告)号：US09407279B2
公开(公告)日：2016-08-02
申请号：US14617376
申请日：2015-02-09
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Jaimin Mehta , Stephen T. Hodapp
IPC分类号： H03M1/10 , H03M1/06 , H03M1/08 , H03M1/66 , H03M3/00
CPC分类号： H03M1/1038 , H03M1/06 , H03M1/0665 , H03M1/0863 , H03M1/10 , H03M1/1009 , H03M1/66 , H03M3/458
摘要： An apparatus may include a scrambler element configured to receive an input signal and generate a scrambled thermometer code-like signal having a plurality of bits based on the input signal and having a plurality of possible quantization values. The scrambler element may generate at least one equivalent code of the scrambled thermometer code-like signal for each possible quantization value. For each of one or more of the possible quantization values, the scrambler element may be configured to generate a plurality of possible equivalent codes of the scrambled thermometer code-like signal. Responsive to the input signal indicating a change in quantization value of the scrambled thermometer code-like signal, the scrambler element may change the scrambled thermometer code-like signal by transitioning the smallest possible number of the plurality of bits of the scrambled thermometer code-like signal to change quantization value of the scrambled thermometer code-like signal in accordance with the input signal.
摘要翻译：装置可以包括扰频器元件，其被配置为接收输入信号并且基于输入信号生成具有多个比特的加扰温度计类似码字的信号，并且具有多个可能的量化值。加扰器元件可以为每个可能的量化值生成加扰的温度计代码样信号的至少一个等效代码。对于一个或多个可能的量化值中的每个，加扰器元件可以被配置为生成加扰的温度计代码样信号的多个可能的等效代码。响应于指示加扰的温度计编码类信号的量化值的改变的输入信号，加扰器元件可以通过转换加扰的温度计代码样信号的多个比特的最小可能数来改变加扰的温度计代码样信号信号以根据输入信号改变加扰的温度计代码样信号的量化值。

8. 发明申请

US20160072521A1 DELTA-SIGMA MODULATOR WITH REDUCED INTEGRATOR REQUIREMENTS 有权
标题翻译：具减少积分器要求的DELTA-SIGMA调制器
公开(公告)号：US20160072521A1
公开(公告)日：2016-03-10
申请号：US14845899
申请日：2015-09-04
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Stephen T. Hodapp
IPC分类号： H03M3/00
CPC分类号： H03M3/30 , H03M3/436 , H03M3/44 , H03M3/464
摘要： Requirements placed on the first integrator of a filter in a continuous-time delta-feedback modulator may be reduced by using circuitry to reduce the speed of a signal provided to the first integrator of the modulator. The reduction in speed applied to the signal received at the first integrator may then be compensated with circuitry elsewhere in the modulator, such that the net effect of the slow down and speed up of signals does not affect the output of the modulator. The sigma-delta modulator may be implemented in converters, such as an analog-to-digital converter (ADC).
摘要翻译：通过使用电路来降低提供给调制器的第一积分器的信号的速度，可以减少在连续时间增量反馈调制器中对滤波器的第一积分器的要求。然后可以利用在调制器其他地方的电路补偿施加到在第一积分器处接收的信号的速度的降低，使得信号的减速和加速的净效应不影响调制器的输出。 Σ-Δ调制器可以在诸如模数转换器（ADC）的转换器中实现。

9. 发明申请

US20160006448A1 SYSTEMS AND METHODS OF ELEMENT SCRAMBLING FOR COMPENSATION AND CALIBRATION OF ANALOG-TO-DIGITAL CONVERTER FEEDBACK 有权
标题翻译：元件数字转换器反馈补偿和校准元件的系统和方法
公开(公告)号：US20160006448A1
公开(公告)日：2016-01-07
申请号：US14617376
申请日：2015-02-09
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Jaimin Mehta , Stephen T. Hodapp
IPC分类号： H03M1/12 , H03M1/00
CPC分类号： H03M1/1038 , H03M1/06 , H03M1/0665 , H03M1/0863 , H03M1/10 , H03M1/1009 , H03M1/66 , H03M3/458
摘要： An apparatus may include a scrambler element configured to receive an input signal and generate a scrambled thermometer code-like signal having a plurality of bits based on the input signal and having a plurality of possible quantization values. The scrambler element may generate at least one equivalent code of the scrambled thermometer code-like signal for each possible quantization value. For each of one or more of the possible quantization values, the scrambler element may be configured to generate a plurality of possible equivalent codes of the scrambled thermometer code-like signal. Responsive to the input signal indicating a change in quantization value of the scrambled thermometer code-like signal, the scrambler element may change the scrambled thermometer code-like signal by transitioning the smallest possible number of the plurality of bits of the scrambled thermometer code-like signal to change quantization value of the scrambled thermometer code-like signal in accordance with the input signal.
摘要翻译：装置可以包括扰频器元件，其被配置为接收输入信号并且基于输入信号生成具有多个比特的加扰温度计类似码字的信号，并且具有多个可能的量化值。加扰器元件可以为每个可能的量化值生成加扰的温度计代码样信号的至少一个等效代码。对于一个或多个可能的量化值中的每个，加扰器元件可以被配置为生成加扰的温度计代码样信号的多个可能的等效代码。响应于指示加扰的温度计编码类信号的量化值的改变的输入信号，加扰器元件可以通过转换加扰的温度计代码样信号的多个比特的最小可能数来改变加扰的温度计代码样信号信号以根据输入信号改变加扰的温度计代码样信号的量化值。

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