专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100009641A1 DIGITAL RF PHASE CONTROL IN POLAR MODULATION TRANSMITTERS 审中-公开
标题翻译：极性调制变送器中的数字RF相控制
公开(公告)号：US20100009641A1
公开(公告)日：2010-01-14
申请号：US12172125
申请日：2008-07-11
申请人： Saleh Osman , Wayne S. Lee , Earl W. McCune, JR.
发明人： Saleh Osman , Wayne S. Lee , Earl W. McCune, JR.
IPC分类号： H04B1/04
CPC分类号： H04B1/036
摘要： An exemplary modulator apparatus for a polar modulation transmitter includes a phase difference extractor, a phase modulator, and a coarse phase controller. The phase difference extractor is configured to extract +180° and −180° phase differences represented in a phase-difference modulation signal in a phase modulation path of the polar modulation transmitter, or extract other phase differences exceeding other predetermined phase difference thresholds, to produce a bandwidth-reduced phase-difference modulation signal. The phase modulator includes a controlled oscillator having a tuning port that is modulated by phase differences represented in the bandwidth-reduced phase-difference modulation signal, to produce a phase-modulated RF carrier signal. The coarse phase controller operates to effectuate phase reversals or introduce other coarse phase changes into the phase-modulated RF carrier signal, based on the phase differences extracted from the original phase-difference modulation signal.
摘要翻译：用于极性调制发射机的示例性调制器装置包括相位差提取器，相位调制器和粗略相位控制器。相位差提取器被配置为提取极坐标调制发射机的相位调制路径中的相位差调制信号中表示的+ 180°和-180°相位差，或者提取超过其他预定相位差阈值的其他相位差，以产生带宽减小的相位差调制信号。相位调制器包括受控振荡器，该控制振荡器具有调制端口，该调谐端口由在带宽减小的相位差调制信号中表示的相位差进行调制，以产生相位调制的RF载波信号。基于从原始相位差调制信号提取的相位差，粗略相位控制器操作以实现相位反转或将其它粗略相位变化引入相位调制RF载波信号。

2. 发明授权

US07576623B1 Amplitude modulation driver 有权
标题翻译：幅度调制驱动
公开(公告)号：US07576623B1
公开(公告)日：2009-08-18
申请号：US11818802
申请日：2007-06-14
申请人： Saleh Osman , Darwin De La Cruz
发明人： Saleh Osman , Darwin De La Cruz
IPC分类号： H03C3/38
CPC分类号： H03C5/00
摘要： A circuit includes a first semiconductor device and a second semiconductor device. The first semiconductor device has a first source region, a first gate region, and a first drain region. The first gate region and the first drain region are separated by a first distance. The second semiconductor device has a second source region, a second gate region, and a second drain region. The second gate region and the second drain region separated by a second distance. The first distance is greater than the second distance.
摘要翻译：电路包括第一半导体器件和第二半导体器件。第一半导体器件具有第一源极区域，第一栅极区域和第一漏极区域。第一栅极区域和第一漏极区域分开第一距离。第二半导体器件具有第二源极区域，第二栅极区域和第二漏极区域。第二栅极区域和第二漏极区域分开第二距离。第一距离大于第二距离。

3. 发明授权

US08054137B2 Method and apparatus for integrating a FLL loop filter in polar transmitters 有权
标题翻译：用于在极性发射器中集成FLL环路滤波器的方法和装置
公开(公告)号：US08054137B2
公开(公告)日：2011-11-08
申请号：US12481378
申请日：2009-06-09
申请人： Saleh Osman
发明人： Saleh Osman
IPC分类号： H03L7/085
CPC分类号： H03C3/09
摘要： The invention relates to a method and apparatus for integrating the various circuit components controlling a voltage-controlled oscillator (“VCO”) on an integrated circuit formed on a semiconductor device. In one embodiment, the integrated circuit includes a first digital-to-analog converter (“DAC”) for receiving and converting a digital representation of the frequency modulation for the VCO to an analog form. A filter removes any conversion error from the first analog signal. A second DAC receives and converts a digital representation of the center frequency for the VCO to a second analog signal. The first and second analog signals are combined at an adder and the resulting signal is used by a bridge circuit which controls the VCO.
摘要翻译：本发明涉及一种用于将控制压控振荡器（“VCO”）的各种电路部件集成在形成在半导体器件上的集成电路上的方法和装置。在一个实施例中，集成电路包括用于接收和将VCO的频率调制的数字表示转换为模拟形式的第一数模转换器（“DAC”）。滤波器会从第一个模拟信号中消除任何转换错误。第二DAC接收并将VCO的中心频率的数字表示转换为第二模拟信号。第一和第二模拟信号在加法器处组合，并且所得到的信号由控制VCO的桥接电路使用。

4. 发明授权

US07755443B2 Delay-based modulation of RF communications signals 有权
标题翻译： RF通信信号的基于延迟的调制
公开(公告)号：US07755443B2
公开(公告)日：2010-07-13
申请号：US12031866
申请日：2008-02-15
申请人： Saleh Osman , Earl W. McCune, Jr.
发明人： Saleh Osman , Earl W. McCune, Jr.
IPC分类号： H03C3/00
CPC分类号： H04L27/12 , H03C3/00 , H03K7/06
摘要： An apparatus for providing an angle modulated signal includes a tunable oscillator circuit, a variable time delay circuit, and an optional scaling and delay control apparatus. The tunable oscillator circuit generates an oscillatory signal having a predetermined frequency. The variable time delay circuit operates to delay the oscillatory signal in accordance with time varying changes in an angle control signal, thereby producing the desired angle modulated signal. The scaling and delay control apparatus is configured to scale the angle control signal to account for frequency dependent phase delays of the oscillatory signal through the variable time delay circuit. The methods and apparatus of the present invention may be advantageously used in RF transmitters and receivers, such as in a polar transmitter, where the oscillatory signal generated by the tunable oscillator apparatus serves as a carrier signal, and the angle control signal used to control the delay of the variable time delay circuit comprises a phase modulation signal from the phase path of the polar transmitter.
摘要翻译：用于提供角度调制信号的装置包括可调振荡器电路，可变时间延迟电路和可选的缩放和延迟控制装置。可调振荡器电路产生具有预定频率的振荡信号。可变时间延迟电路用于根据角度控制信号中的时变变化来延迟振荡信号，从而产生所需的角度调制信号。缩放和延迟控制装置被配置为通过可变时间延迟电路来缩放角度控制信号以考虑振荡信号的频率相关相位延迟。本发明的方法和装置可以有利地用在RF发射机和接收机中，例如在极性发射机中，由可调谐振荡器产生的振荡信号用作载波信号，以及用于控制可变时间延迟电路的延迟包括来自极性发射机的相位路径的相位调制信号。

5. 发明申请

US20100308926A1 METHOD AND APPARATUS FOR INTEGRATING A FLL LOOP FILTER IN POLAR TRANSMITTERS 有权
标题翻译：用于集成极性发射器中的FLL环路滤波器的方法和装置
公开(公告)号：US20100308926A1
公开(公告)日：2010-12-09
申请号：US12481378
申请日：2009-06-09
申请人： Saleh Osman
发明人： Saleh Osman
IPC分类号： H03L7/099
CPC分类号： H03C3/09
摘要： The invention relates to a method and apparatus for integrating the various circuit components controlling a voltage-controlled oscillator (“VCO”) on an integrated circuit formed on a semiconductor device. In one embodiment, the integrated circuit includes a first digital-to-analog converter (“DAC”) for receiving and converting a digital representation of the frequency modulation for the VCO to an analog form. A filter removes any conversion error from the first analog signal. A second DAC receives and converts a digital representation of the center frequency for the VCO to a second analog signal. The first and second analog signals are combined at an adder and the resulting signal is used by a bridge circuit which controls the VCO.
摘要翻译：本发明涉及一种用于将控制压控振荡器（“VCO”）的各种电路部件集成在形成在半导体器件上的集成电路上的方法和装置。在一个实施例中，集成电路包括用于接收和将VCO的频率调制的数字表示转换为模拟形式的第一数模转换器（“DAC”）。滤波器会从第一个模拟信号中消除任何转换错误。第二DAC接收并将VCO的中心频率的数字表示转换为第二模拟信号。第一和第二模拟信号在加法器处组合，并且所得到的信号由控制VCO的桥接电路使用。

6. 发明申请

US20070146074A1 Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain 有权
标题翻译：通过动态调整增益来保持无隔离器功率放大器的线性度
公开(公告)号：US20070146074A1
公开(公告)日：2007-06-28
申请号：US10538632
申请日：2003-12-10
申请人： Saleh Osman
发明人： Saleh Osman
IPC分类号： H03G3/00
CPC分类号： H03F1/302 , H03F1/0272 , H03F1/32 , H03F1/52 , H03F3/191 , H03F3/24 , H03F2200/294 , H03F2200/372 , H03G3/3042
摘要： An amplifier circuit (100) includes a driver stage ( ) 120 with at least an active device (140) for pre-amplification and output of a pre-amplified signal; and an output stage (160) with at least an active device (180) for further amplification of the pre-amplified signal and output of an amplified signal. A phase shifter (155) shifts the phase of the pre-amplified signal. A detector (190) measures levels of forward and reflected parts of the amplified signal, and a gain and phase control circuit (145) independently and selectively controls and adjusts the phase shifter (155) for optimal amplifier performance and minimal difference between the forward and reflected signals. The gain and phase control circuit also independently and selectively controls and modifies the gain of the active devices (140, 180) of the driver and output stages (120, 160) as a function of the levels of the forward and reflected signals to substantially maintain constant linearity of the amplifier circuit (100) with load variations.
摘要翻译：放大器电路（100）包括具有用于预放大和输出预放大信号的至少一个有源器件（140）的驱动级（）120; 以及具有至少一个有源器件（180）的输出级（160），用于进一步放大预放大的信号并输出放大的信号。移相器（155）使预放大信号的相位移位。检测器（190）测量放大信号的正向和反射部分的电平，并且增益和相位控制电路（145）独立地并且选择性地控制和调整移相器（155）以获得最佳的放大器性能，并且前向和反射信号。增益和相位控制电路还独立地和选择性地控制和修改驱动器和输出级（120,160）的有源器件（140,180）的增益，作为前向和反射信号的电平的函数，以基本维持具有负载变化的放大器电路（100）的恒定线性度。

7. 发明授权

US08477857B2 Efficient cartesian transmitter using signal combiner 有权
标题翻译：高效笛卡尔发射机使用信号组合器
公开(公告)号：US08477857B2
公开(公告)日：2013-07-02
申请号：US13103687
申请日：2011-05-09
申请人： Saleh Osman , Gregoire Le Grand de Mercey
发明人： Saleh Osman , Gregoire Le Grand de Mercey
IPC分类号： H04L27/00
CPC分类号： H04B1/0475 , H04L27/362
摘要： In one embodiment, the present invention includes a transmitter having a baseband, a multiplexer, a digital-to-analog converter unit, and/or a Chireix combiner. The baseband transmits components of an in-phase signal and a quadrature-phase signal to the multiplexer. The multiplexer generates a first signal and/or a second signal which have a phase difference which matches only a single predetermined phase difference. The single predetermined phase difference should be selected to ensure that the Chireix combiner is optimized for efficiency. Thus, a phase of the first signal or the second signal can have a phase of the in-phase signal or the quadrature-phase signal to ensure that the phase difference between the second signal and the first signal matches only the single predetermined phase difference. The Chireix combiner receives the first analog signal and the second analog signal.
摘要翻译：在一个实施例中，本发明包括具有基带，多路复用器，数模转换器单元和/或Chireix组合器的发射机。基带将同相信号和正交相位信号的分量发送到多路复用器。复用器产生具有仅与单个预定相位差匹配的相位差的第一信号和/或第二信号。应选择单个预定相位差，以确保Chireix组合器的效率得到优化。因此，第一信号或第二信号的相位可以具有同相信号或正交相位信号的相位，以确保第二信号和第一信号之间的相位差仅与单个预定相位差匹配。 Chireix组合器接收第一模拟信号和第二模拟信号。

8. 发明申请

US20120288018A1 EFFICIENT CARTESIAN TRANSMITTER USING SIGNAL COMBINER 有权
标题翻译：使用信号组合器的高效智能发射机
公开(公告)号：US20120288018A1
公开(公告)日：2012-11-15
申请号：US13103687
申请日：2011-05-09
申请人： Saleh Osman , Gregoire Le Grand de Mercey
发明人： Saleh Osman , Gregoire Le Grand de Mercey
IPC分类号： H04L27/00
CPC分类号： H04B1/0475 , H04L27/362
摘要： In one embodiment, the present invention includes a transmitter having a baseband, a multiplexer, a digital-to-analog converter unit, and/or a Chireix combiner. The baseband transmits components of an in-phase signal and a quadrature-phase signal to the multiplexer. The multiplexer generates a first signal and/or a second signal which have a phase difference which matches only a single predetermined phase difference. The single predetermined phase difference should be selected to ensure that the Chireix combiner is optimized for efficiency. Thus, a phase of the first signal or the second signal can have a phase of the in-phase signal or the quadrature-phase signal to ensure that the phase difference between the second signal and the first signal matches only the single predetermined phase difference. The Chireix combiner receives the first analog signal and the second analog signal.
摘要翻译：在一个实施例中，本发明包括具有基带，多路复用器，数模转换器单元和/或Chireix组合器的发射机。基带将同相信号和正交相位信号的分量发送到多路复用器。复用器产生具有仅与单个预定相位差匹配的相位差的第一信号和/或第二信号。应选择单个预定相位差，以确保Chireix组合器的效率得到最佳化。因此，第一信号或第二信号的相位可以具有同相信号或正交相位信号的相位，以确保第二信号和第一信号之间的相位差仅与单个预定相位差匹配。 Chireix组合器接收第一模拟信号和第二模拟信号。

9. 发明授权

US08126409B2 Adaptive delay alignment in polar transmitters 有权
标题翻译：极性发射机中的自适应延迟对准
公开(公告)号：US08126409B2
公开(公告)日：2012-02-28
申请号：US12272037
申请日：2008-11-17
申请人： Saleh Osman , Earl W. McCune, Jr.
发明人： Saleh Osman , Earl W. McCune, Jr.
IPC分类号： H04L27/34 , H03C1/52
CPC分类号： H04B1/0483
摘要： A polar transmitter includes a power amplifier (PA), an amplitude modulation (AM) path including an AM path adjustable delay, an AM path delay measurement circuit, a phase modulation (PM) path including a PM path adjustable delay, and a PM path delay measurement circuit. The AM path delay measurement circuit is configured to measure an AM path delay using waveform correlation, e.g., using peak magnitude events (PMEs) in signals transmitted along the AM path to a power supply port of the PA. The PM path delay measurement circuit is configured to measure a PM path delay using waveform correlation, e.g., using PMEs in signals transmitted along the PM path to a phase-modulated input of the PA. The measured AM and PM path delays are used to adjust the AM and PM path adjustable delays, to reduce the delay mismatch between signals appearing at the power supply and phase-modulated input ports of the polar transmitter's PA.
摘要翻译：极性发射机包括功率放大器（PA），包括AM路径可调延迟的调幅（AM）路径，AM路径延迟测量电路，包括PM路径可调延迟的相位调制（PM）路径和PM路径延时测量电路。 AM路径延迟测量电路被配置为使用波形相关来测量AM路径延迟，例如，使用沿着AM路径传输到PA的电源端口的信号中的峰值幅度事件（PME）。 PM路径延迟测量电路被配置为使用波形相关性来测量PM路径延迟，例如，在沿着PM路径发送的信号中使用PME到PA的相位调制输入。测量的AM和PM路径延迟用于调整AM和PM路径可调节延迟，以减少出现在极性发射器PA的电源和相位调制输入端口的信号之间的延迟失配。

10. 发明授权

US07382193B2 Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain and phase 有权
标题翻译：通过动态调整增益和相位来保持无隔离器功率放大器的线性度
公开(公告)号：US07382193B2
公开(公告)日：2008-06-03
申请号：US10538632
申请日：2003-12-10
申请人： Saleh Osman , Richard F. Keenan , Jaroslaw Lucek
发明人： Saleh Osman , Richard F. Keenan , Jaroslaw Lucek
IPC分类号： H03G3/00
CPC分类号： H03F1/302 , H03F1/0272 , H03F1/32 , H03F1/52 , H03F3/191 , H03F3/24 , H03F2200/294 , H03F2200/372 , H03G3/3042
摘要： An amplifier circuit (100) includes a driver stage ( ) 120 with at least an active device (140) for pre-amplification and output of a pre-amplified signal; and an output stage (160) with at least an active device (180) for further amplification of the pre-amplified signal and output of an amplified signal. A phase shifter (155) shifts the phase of the pre-amplified signal. A detector (190) measures levels of forward and reflected parts of the amplified signal, and a gain and phase control circuit (145) independently and selectively controls and adjusts the phase shifter (155) for optimal amplifier performance and minimal difference between the forward and reflected signals. The gain and phase control circuit also independently and selectively controls and modifies the gain of the active devices (140, 180) of the driver and output stages (120, 160) as a function of the levels of the forward and reflected signals to substantially maintain constant linearity of the amplifier circuit (100) with load variations.
摘要翻译：放大器电路（100）包括具有用于预放大和输出预放大信号的至少一个有源器件（140）的驱动级（）120; 以及具有至少一个有源器件（180）的输出级（160），用于进一步放大预放大的信号并输出放大的信号。移相器（155）使预放大信号的相位移位。检测器（190）测量放大信号的正向和反射部分的电平，并且增益和相位控制电路（145）独立地并且选择性地控制和调整移相器（155）以获得最佳的放大器性能，并且前向和反射信号。增益和相位控制电路还独立地和选择性地控制和修改驱动器和输出级（120,160）的有源器件（140,180）的增益，作为前向和反射信号的电平的函数，以基本维持具有负载变化的放大器电路（100）的恒定线性度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式