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1. 发明授权

US09020452B2 Envelope power supply calibration of a multi-mode radio frequency power amplifier 有权
标题翻译：多模射频功率放大器的信封电源校准
公开(公告)号：US09020452B2
公开(公告)日：2015-04-28
申请号：US14010617
申请日：2013-08-27
申请人： RF Micro Devices, Inc.
发明人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
IPC分类号： H04B1/04 , H01Q11/12 , H04B17/00 , H03C1/62 , H03G99/00 , H03G3/30 , H03G3/20 , H04B1/62
CPC分类号： H03G99/00 , H03G3/20 , H03G3/3042 , H04B1/62
摘要： The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.
摘要翻译：本公开涉及多模RF功率放大器（PA）的包络电源校准，以在使用多种通信模式中的一种进行操作时确保足够的余量。通信模式可以包括多种调制模式，半双工模式，全双工模式或其任何组合。因此，每个通信模式可以具有针对多模式RF PA的特定的峰均功率和线性要求。因此，每个通信模式可以具有对应的信封电源余量要求。校准可以包括基于在多模式RF PA的饱和操作期间获得的校准数据来确定饱和操作约束。在多模RFPA的操作期间，可以限制包络电源以基于多模式RF PA的RF信号电平，通信模式和饱和操作约束提供最小允许幅度，以提供足够的余量。

2. 发明授权

US09294063B1 Digital input circuit and method for high voltage sensors 有权
标题翻译：高压传感器数字输入电路及方法
公开(公告)号：US09294063B1
公开(公告)日：2016-03-22
申请号：US13472360
申请日：2012-05-15
申请人： Anthony S. Partow , Pirooz Parvarandeh
发明人： Anthony S. Partow , Pirooz Parvarandeh
IPC分类号： H03G11/00
CPC分类号： H03K19/017509 , H03G11/00 , H03G11/004 , H03G99/00 , H03K3/356
摘要： A digital input circuit includes a series connection of a current limiter and a switch having a switch control input coupled between a signal input and ground, and a logic level shifter coupled to the signal input and having a switch control output coupled to the switch control input and a signal output, where a maximum amplitude at the signal input is greater than a maximum amplitude at the signal output. A digital input method includes coupling an input signal to ground with a current limiter by closing an electronic switch, providing an output signal responsive to the input signal, where a maximum amplitude of the input signal is greater than a maximum amplitude of the output signal, by latching the output signal while the input signal is above a threshold voltage and opening the electronic switch after the output signal is latched.
摘要翻译：数字输入电路包括电流限制器和具有耦合在信号输入和接地之间的开关控制输入的开关的串联连接和耦合到信号输入的逻辑电平移位器，并且具有耦合到开关控制输入的开关控制输出以及信号输出，其中信号输入处的最大幅度大于信号输出处的最大振幅。数字输入方法包括通过关闭电子开关将输入信号与电流限制器相耦合，提供响应于输入信号的输出信号，其中输入信号的最大幅度大于输出信号的最大幅度，通过在输入信号高于阈值电压时锁存输出信号，并且在输出信号被锁存之后打开电子开关。

3. 发明申请

US20120034893A1 ENVELOPE POWER SUPPLY CALIBRATION OF A MULTI-MODE RADIO FREQUENCY POWER AMPLIFIER 有权
标题翻译：多模无线电频率功率放大器的包络电源校准
公开(公告)号：US20120034893A1
公开(公告)日：2012-02-09
申请号：US13019077
申请日：2011-02-01
申请人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
发明人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
IPC分类号： H03G3/20
CPC分类号： H03G99/00 , H03G3/20 , H03G3/3042 , H04B1/62
摘要： The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.
摘要翻译：本公开涉及多模RF功率放大器（PA）的包络电源校准，以在使用多种通信模式中的一种进行操作时确保足够的余量。通信模式可以包括多种调制模式，半双工模式，全双工模式或其任何组合。因此，每个通信模式可以具有针对多模式RF PA的特定的峰均功率和线性要求。因此，每个通信模式可以具有对应的信封电源余量要求。校准可以包括基于在多模式RF PA的饱和操作期间获得的校准数据来确定饱和操作约束。在多模RFPA的操作期间，可以限制包络电源以基于多模式RF PA的RF信号电平，通信模式和饱和运行约束来提供最小允许幅度，以提供足够的余量。

4. 发明授权

US09031522B2 Envelope power supply calibration of a multi-mode radio frequency power amplifier 有权
公开(公告)号：US09031522B2
公开(公告)日：2015-05-12
申请号：US14010630
申请日：2013-08-27
申请人： RF Micro Devices, Inc.
发明人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
IPC分类号： H04B1/04 , H03C1/62 , H04B17/00 , H01Q11/12 , H03G99/00 , H03G3/30 , H03G3/20 , H04B1/62
CPC分类号： H03G99/00 , H03G3/20 , H03G3/3042 , H04B1/62
摘要： The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.

5. 发明授权

US08548398B2 Envelope power supply calibration of a multi-mode radio frequency power amplifier 有权
公开(公告)号：US08548398B2
公开(公告)日：2013-10-01
申请号：US13019077
申请日：2011-02-01
申请人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
发明人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
IPC分类号： H03C1/62 , H04B17/00 , H04B1/04 , H01Q11/12
CPC分类号： H03G99/00 , H03G3/20 , H03G3/3042 , H04B1/62
摘要： The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.

6. 发明授权

US09608635B1 Digital input circuit and method for high voltage sensors 有权
公开(公告)号：US09608635B1
公开(公告)日：2017-03-28
申请号：US15018804
申请日：2016-02-08
申请人： Maxim Integrated Products, Inc.
发明人： Anthony S. Partow , Pirooz Parvarandeh
IPC分类号： H03K19/01 , H03K19/0175 , H03K3/356 , H03G11/00 , H03G99/00
CPC分类号： H03K19/017509 , H03G11/00 , H03G11/004 , H03G99/00 , H03K3/356
摘要： A digital input circuit includes a series connection of a current limiter and a switch having a switch control input coupled between a signal input and ground, and a logic level shifter coupled to the signal input and having a switch control output coupled to the switch control input and a signal output, where a maximum amplitude at the signal input is greater than a maximum amplitude at the signal output. A digital input method includes coupling an input signal to ground with a current limiter by closing an electronic switch, providing an output signal responsive to the input signal, where a maximum amplitude of the input signal is greater than a maximum amplitude of the output signal, by latching the output signal while the input signal is above a threshold voltage and opening the electronic switch after the output signal is latched.

7. 发明申请

US20130344828A1 ENVELOPE POWER SUPPLY CALIBRATION OF A MULTI-MODE RADIO FREQUENCY POWER AMPLIFIER 有权
公开(公告)号：US20130344828A1
公开(公告)日：2013-12-26
申请号：US14010617
申请日：2013-08-27
申请人： RF Micro Devices, Inc.
发明人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
IPC分类号： H04B1/62
CPC分类号： H03G99/00 , H03G3/20 , H03G3/3042 , H04B1/62
摘要： The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.

8. 发明申请

US20130342270A1 ENVELOPE POWER SUPPLY CALIBRATION OF A MULTI-MODE RADIO FREQUENCY POWER AMPLIFIER 有权
公开(公告)号：US20130342270A1
公开(公告)日：2013-12-26
申请号：US14010643
申请日：2013-08-27
申请人： RF Micro Devices, Inc.
发明人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
IPC分类号： H03G99/00
CPC分类号： H03G99/00 , H03G3/20 , H03G3/3042 , H04B1/62
摘要： The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.

9. 发明授权

US09197182B2 Envelope power supply calibration of a multi-mode radio frequency power amplifier 有权
公开(公告)号：US09197182B2
公开(公告)日：2015-11-24
申请号：US14010643
申请日：2013-08-27
申请人： RF Micro Devices, Inc.
发明人： Brian Baxter , Jason Millard , Roman Zbigniew Arkiszewski , Steven Selby
IPC分类号： H04B1/66 , H04B1/04 , H01Q11/12 , H04B17/00 , H03G99/00 , H03G3/30 , H03G3/20 , H04B1/62
CPC分类号： H03G99/00 , H03G3/20 , H03G3/3042 , H04B1/62
摘要： The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.

10. 发明申请

US20140294201A1 AUDIO CALIBRATION SYSTEM AND METHOD 审中-公开
标题翻译：音频校准系统和方法
公开(公告)号：US20140294201A1
公开(公告)日：2014-10-02
申请号：US14235205
申请日：2012-07-26
申请人： THOMSON LICENSING
发明人： Ronald Douglas Johnson , Mark Alan Schultz
IPC分类号： H03G99/00
CPC分类号： H03G99/00 , H04S7/301
摘要： Described herein is an audio calibration system and method that determines optimum placement and/or operating conditions of speakers for an entertainment system. The system receives an audio signal and transmits the audio signal to a speaker. A recordation of an emanated audio signal from each speaker is made. The system performs a sliding window fast Fourier transform (FFT) comparison of the recorded audio signal temporally and volumetrically with the audio signal. A time delay for each speaker is shifted so that each of the plurality of speakers is synchronized. The individual volumes are then compared for each speaker and are adjusted to collectively match. The method can align and move the convergence point of multiple audio sources. Time differences are measured with respect to a microphone as a function of position. The method uses any audio data and functions with background noise in real time.
摘要翻译：这里描述了确定用于娱乐系统的扬声器的最佳布置和/或操作条件的音频校准系统和方法。系统接收音频信号并将音频信号发送到扬声器。对每个扬声器发出的音频信号进行记录。该系统在时间上和体积上与音频信号执行所记录的音频信号的滑动窗口快速傅里叶变换（FFT）比较。每个扬声器的时间延迟被移位，使得多个扬声器中的每一个同步。然后对每个扬声器比较各个体积，并将其调整为集体匹配。该方法可以对齐和移动多个音频源的收敛点。时间差是相对麦克风测量的，作为位置的函数。该方法实时使用任何具有背景噪声的音频数据和功能。

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