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1. 发明授权

US08831085B2 Digital time-interleaved RF-PWM transmitter 有权
标题翻译：数字时间交织RF-PWM发射机
公开(公告)号：US08831085B2
公开(公告)日：2014-09-09
申请号：US13327247
申请日：2011-12-15
申请人： Rahmi Hezar , Lei Ding , Joonhoi Hur , Baher S. Haroun
发明人： Rahmi Hezar , Lei Ding , Joonhoi Hur , Baher S. Haroun
IPC分类号： H03K7/08
CPC分类号： H04L1/0071 , H04B1/04
摘要： A method for transmitting radio frequency (RF) signals is provided. In-phase (I) and quadrature (Q) signals are received and filtered using sigma-delta modulation. I and Q pulse width modulation signals are generated from the filtered I and Q signals and interleaved so as to generate a time-interleaved signal. The time-interleaved signal is then amplified to generate the RF signals.
摘要翻译：提供了一种用于发射射频（RF）信号的方法。使用Σ-Δ调制接收和滤波同相（I）和正交（Q）信号。从经滤波的I和Q信号产生I和Q脉宽调制信号并进行交织，以产生时间交织的信号。然后对时间交织的信号进行放大以产生RF信号。

2. 发明申请

US20130234795A1 FREE-FLY CLASS D POWER AMPLIFIER 有权
标题翻译：自由飞行类D功率放大器
公开(公告)号：US20130234795A1
公开(公告)日：2013-09-12
申请号：US13416841
申请日：2012-03-09
申请人： Joonhoi Hur , Lei Ding , Rahmi Hezar , Baher S. Haroun
发明人： Joonhoi Hur , Lei Ding , Rahmi Hezar , Baher S. Haroun
IPC分类号： H03F3/217
CPC分类号： H03F3/2173 , H03F1/56 , H03F2200/387
摘要： A method is provided. A first enable signal is asserted so as to enable a first driver, where the first driver has a first output and a first parasitic capacitance. A second enable signal is asserted so as to enable a second driver, where the second driver has a second output and a second parasitic capacitance. The first and second outputs are coupled together by a switching network when the second driver is enabled. Pulses from complementary first and second radio frequency (RF) signals are applied to the first driver, where there is a first set of free-fly intervals between consecutive pulses from the first and second RF signals, and pulses from complementary third and fourth RF signals are applied to the second driver, wherein there is a second set of free-fly interval between consecutive pulses from the third and fourth RF signals.
摘要翻译：提供了一种方法。第一使能信号被确定为使第一驱动器能够使第一驱动器具有第一输出和第一寄生电容。第二使能信号被确定为使第二驱动器能够启动，其中第二驱动器具有第二输出和第二寄生电容。当第二驱动器被使能时，第一和第二输出由交换网络耦合在一起。来自互补第一和第二射频（RF）信号的脉冲被施加到第一驱动器，其中在来自第一和第二RF信号的连续脉冲之间存在第一组自由飞行间隔，以及来自互补的第三和第四RF信号的脉冲被施加到第二驱动器，其中在来自第三和第四RF信号的连续脉冲之间存在第二组自由间隔。

3. 发明申请

US20130241663A1 PULSE WIDTH MODULATION SCHEME WITH REDUCED HARMONICS AND SIGNAL IMAGES 审中-公开
标题翻译：脉冲宽度调制方案与减少谐波和信号图像
公开(公告)号：US20130241663A1
公开(公告)日：2013-09-19
申请号：US13421567
申请日：2012-03-15
申请人： Lei Ding , Rahmi Hezar , Joonhoi Hur , Baher S. Haroun
发明人： Lei Ding , Rahmi Hezar , Joonhoi Hur , Baher S. Haroun
IPC分类号： H03K7/08
CPC分类号： H03K7/08
摘要： A method is provided. An input signal is received, and a noise-shaped signal is generated from the input signal. The noise-shaped signal is formed from a plurality of noise-shaping levels. A pulse stream is generated from the noise-shaped signal over a plurality of periods, where each period has a plurality of frames. The pulse stream also includes a plurality of pulse sets, where each pulse set is associated with at least one of the noise-shaping levels, and, for each pulse set having a total pulse width for its period that is less than its period and greater than zero, each pulse set includes at least one pulse in each frame for its period.
摘要翻译：提供了一种方法。接收输入信号，并从输入信号产生噪声信号。噪声形状信号由多个噪声整形电平形成。在多个周期中，从噪声信号产生脉冲流，其中每个周期具有多个帧。脉冲流还包括多个脉冲组，其中每个脉冲组与噪声整形电平中的至少一个相关联，并且对于每个具有小于其周期和更大周期的总脉冲宽度的脉冲集合每个脉冲组在其周期中包括每帧中的至少一个脉冲。

4. 发明授权

US08519791B1 Free-fly class D power amplifier 有权
标题翻译：自由D类功率放大器
公开(公告)号：US08519791B1
公开(公告)日：2013-08-27
申请号：US13416841
申请日：2012-03-09
申请人： Joonhoi Hur , Lei Ding , Rahmi Hezar , Baher S. Haroun
发明人： Joonhoi Hur , Lei Ding , Rahmi Hezar , Baher S. Haroun
IPC分类号： H03F3/217
CPC分类号： H03F3/2173 , H03F1/56 , H03F2200/387
摘要： A method is provided. A first enable signal is asserted so as to enable a first driver, where the first driver has a first output and a first parasitic capacitance. A second enable signal is asserted so as to enable a second driver, where the second driver has a second output and a second parasitic capacitance. The first and second outputs are coupled together by a switching network when the second driver is enabled. Pulses from complementary first and second radio frequency (RF) signals are applied to the first driver, where there is a first set of free-fly intervals between consecutive pulses from the first and second RF signals, and pulses from complementary third and fourth RF signals are applied to the second driver, wherein there is a second set of free-fly interval between consecutive pulses from the third and fourth RF signals.
摘要翻译：提供了一种方法。第一使能信号被确定为使第一驱动器能够使第一驱动器具有第一输出和第一寄生电容。第二使能信号被确定为使第二驱动器能够启动，其中第二驱动器具有第二输出和第二寄生电容。当第二驱动器被使能时，第一和第二输出由交换网络耦合在一起。来自互补第一和第二射频（RF）信号的脉冲被施加到第一驱动器，其中在来自第一和第二RF信号的连续脉冲之间存在第一组自由飞行间隔，以及来自互补的第三和第四RF信号的脉冲被施加到第二驱动器，其中在来自第三和第四RF信号的连续脉冲之间存在第二组自由间隔。

5. 发明授权

US08744378B2 LINC transmitter with improved efficiency 有权
标题翻译： LINC变送器效率提高
公开(公告)号：US08744378B2
公开(公告)日：2014-06-03
申请号：US13370151
申请日：2012-02-09
申请人： Joonhoi Hur , Rahmi Hezar , Lei Ding , Baher S. Haroun
发明人： Joonhoi Hur , Rahmi Hezar , Lei Ding , Baher S. Haroun
IPC分类号： H04B1/04
CPC分类号： H03F1/0294 , H03F1/0222 , H03F1/3241 , H03F1/3247 , H04B1/0475 , H04B2001/0425
摘要： A radio frequency (RF) transmitter is provided. The RF transmitter includes first and second drivers that are configured to receive first and second sets of complementary RF signals. Restoration circuits are coupled to the first and second drivers, and a bridge circuit is coupled to the first and second restoration circuits. By having the restoration circuits and the bridge circuit, a common mode impedance and a differential impedance can be provided, where the common mode impedance is lower than the differential impedance.
摘要翻译：提供射频（RF）发射机。 RF发射器包括被配置为接收第一和第二组互补RF信号的第一和第二驱动器。恢复电路耦合到第一和第二驱动器，并且桥接电路耦合到第一和第二恢复电路。通过具有恢复电路和桥接电路，可以提供共模阻抗和差分阻抗，其中共模阻抗低于差分阻抗。

6. 发明授权

US08654867B2 Transformer power combiner with filter response 有权
标题翻译：具有滤波器响应的变压器功率组合器
公开(公告)号：US08654867B2
公开(公告)日：2014-02-18
申请号：US13313971
申请日：2011-12-07
申请人： Rahmi Hezar , Lei Ding , Joonhoi Hur , Baher S. Haroun
发明人： Rahmi Hezar , Lei Ding , Joonhoi Hur , Baher S. Haroun
IPC分类号： H04L25/00
CPC分类号： H03F3/211 , H03F3/24 , H04L25/4902
摘要： A method for generating an amplified radio frequency (RF) signal is provided. In-phase (I) and quadrature (Q) signals are received and interleaved so as to generate a time-interleaved signal. Delayed time-interleaved signals are then generated from the time interleaved signal, and each of the delayed time-interleaved signals is amplified so as to generate a plurality of amplified signals. The amplified signals are then combined with a transformer, where the delayed time-interleaved signals are arranged to generate a filter response with the transformer.
摘要翻译：提供了一种用于产生放大射频（RF）信号的方法。接收和交织同相（I）和正交（Q）信号，以产生时间交织的信号。然后从时间交织信号产生延迟的时间交织信号，并且每个延迟时间交织的信号被放大以产生多个放大的信号。然后将放大的信号与变压器组合，其中延迟的时间交织信号被布置成产生与变压器的滤波器响应。

7. 发明申请

US20130210376A1 LINC TRANSMITTER WITH IMPROVED EFFICIENCY 有权
标题翻译：具有改进效率的LINC发射机
公开(公告)号：US20130210376A1
公开(公告)日：2013-08-15
申请号：US13370151
申请日：2012-02-09
申请人： Joonhoi Hur , Rahmi Hezar , Lei Ding , Baher S. Haroun
发明人： Joonhoi Hur , Rahmi Hezar , Lei Ding , Baher S. Haroun
IPC分类号： H04B1/04
CPC分类号： H03F1/0294 , H03F1/0222 , H03F1/3241 , H03F1/3247 , H04B1/0475 , H04B2001/0425
摘要： A radio frequency (RF) transmitter is provided. The RF transmitter includes first and second drivers that are configured to receive first and second sets of complementary RF signals. Restoration circuits are coupled to the first and second drivers, and a bridge circuit is coupled to the first and second restoration circuits. By having the restoration circuits and the bridge circuit, a common mode impedance and a differential impedance can be provided, where the common mode impedance is lower than the differential impedance.
摘要翻译：提供射频（RF）发射机。 RF发射器包括被配置为接收第一和第二组互补RF信号的第一和第二驱动器。恢复电路耦合到第一和第二驱动器，并且桥接电路耦合到第一和第二恢复电路。通过具有恢复电路和桥接电路，可以提供共模阻抗和差分阻抗，其中共模阻抗低于差分阻抗。

8. 发明授权

US08471747B1 Phase averaged pulse width modulator 有权
标题翻译：相位平均脉宽调制器
公开(公告)号：US08471747B1
公开(公告)日：2013-06-25
申请号：US13323511
申请日：2011-12-12
申请人： Lei Ding , Rahmi Hezar , Joonhoi Hur , Baher S. Haroun
发明人： Lei Ding , Rahmi Hezar , Joonhoi Hur , Baher S. Haroun
IPC分类号： H03M1/82
CPC分类号： H03K7/08
摘要： A method is provided. A noise shaped signal having a plurality of instants is generated with each instant being associated with at least one of a plurality of output levels. A next phase is selected for each instant, where each next phase is a circularly shifted phase based at least in part on a previous phase for the associated output level for its instant. A plurality of PWM signals is then generated using the phase for each instant, and an amplified signal is generated from the plurality of PWM signals.
摘要翻译：提供了一种方法。产生具有多个时刻的噪声整形信号，每个时刻与多个输出电平中的至少一个相关联。对于每个时刻选择下一阶段，其中每个下一阶段至少部分地基于相对于其瞬时的相关输出电平的先前相位的循环移位相位。然后使用每一瞬间的相位产生多个PWM信号，并且从多个PWM信号产生放大的信号。

9. 发明申请

US20130156089A1 DIGITAL TIME-INTERLEAVED RF-PWM TRANSMITTER 有权
标题翻译：数字时间间隔RF-PWM发射机
公开(公告)号：US20130156089A1
公开(公告)日：2013-06-20
申请号：US13327247
申请日：2011-12-15
申请人： Rahmi Hezar , Lei Ding , Joonhoi Hur , Baher S. Haroun
发明人： Rahmi Hezar , Lei Ding , Joonhoi Hur , Baher S. Haroun
IPC分类号： H03K7/08 , H04L27/00
CPC分类号： H04L1/0071 , H04B1/04
摘要： A method for transmitting radio frequency (RF) signals is provided. In-phase (I) and quadrature (Q) signals are received and filtered using sigma-delta modulation. I and Q pulse width modulation signals are generated from the filtered I and Q signals and interleaved so as to generate a time-interleaved signal. The time-interleaved signal is then amplified to generate the RF signals.
摘要翻译：提供了一种用于发射射频（RF）信号的方法。使用Σ-Δ调制接收和滤波同相（I）和正交（Q）信号。从经滤波的I和Q信号产生I和Q脉宽调制信号并进行交织，以产生时间交织的信号。然后对时间交织的信号进行放大以产生RF信号。

10. 发明申请

US20130147533A1 PHASE AVERAGED PULSE WIDTH MODULATOR 有权
标题翻译：相位平均脉冲宽度调制器
公开(公告)号：US20130147533A1
公开(公告)日：2013-06-13
申请号：US13323511
申请日：2011-12-12
申请人： Lei Ding , Rahmi Hezar , Joonhoi Hur , Baher S. Haroun
发明人： Lei Ding , Rahmi Hezar , Joonhoi Hur , Baher S. Haroun
IPC分类号： H03K7/08
CPC分类号： H03K7/08
摘要： A method is provided. A noise shaped signal having a plurality of instants is generated with each instant being associated with at least one of a plurality of output levels. A next phase is selected for each instant, where each next phase is a circularly shifted phase based at least in part on a previous phase for the associated output level for its instant. A plurality of PWM signals is then generated using the phase for each instant, and an amplified signal is generated from the plurality of PWM signals.
摘要翻译：提供了一种方法。产生具有多个时刻的噪声整形信号，每个时刻与多个输出电平中的至少一个相关联。对于每个时刻选择下一阶段，其中每个下一阶段至少部分地基于相对于其瞬时的相关输出电平的先前相位的循环移位相位。然后使用每一瞬间的相位产生多个PWM信号，并且从多个PWM信号产生放大的信号。

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