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1. 发明申请

US20130208827A1 METHOD AND APPARATUS TO USE AUXILIARY RECEIVER TO COMPENSATE MULTIPLE TRANSMITTERS BASED UPON ONE OF THE TRANSMITTERS 有权
标题翻译：使用辅助接收机来补偿基于发射机之一的多个发射机的方法和装置
公开(公告)号：US20130208827A1
公开(公告)日：2013-08-15
申请号：US13397101
申请日：2012-02-15
申请人： Khurram MUHAMMAD , Oleksiy KRAVETS
发明人： Khurram MUHAMMAD , Oleksiy KRAVETS
IPC分类号： H04L25/49
CPC分类号： H04L27/2089 , H04L27/364 , H04L27/367
摘要： A communications device includes a plurality of wireless transmitters operable at different respective frequencies and each configured to generate respective IQ signals having an initial IQ imbalance. An auxiliary receiver is coupled to a given wireless transmitter. In addition, a controller is configured to apply predistortion to the each wireless transmitter of the plurality thereof based upon the initial IQ imbalance generated by the given wireless transmitter to reduce the initial IQ imbalance in each wireless transmitter.
摘要翻译：通信设备包括可在不同的相应频率下操作的多个无线发射机，并且每个被配置成产生具有初始IQ不平衡的相应的IQ信号。辅助接收机耦合到给定的无线发射机。此外，控制器被配置为基于由给定无线发射机产生的初始IQ不平衡来对其多个的每个无线发射机应用预失真，以减少每个无线发射机中的初始IQ不平衡。

2. 发明申请

US20130196716A1 COMMUNICATIONS DEVICE AND METHOD HAVING NON-TOUCH BASED INPUT SCREEN 有权
标题翻译：具有非触摸式输入画面的通信设备和方法
公开(公告)号：US20130196716A1
公开(公告)日：2013-08-01
申请号：US13359889
申请日：2012-01-27
申请人： Khurram MUHAMMAD
发明人： Khurram MUHAMMAD
IPC分类号： H04W88/02
CPC分类号： G06F3/046 , G01S7/023 , G01S13/345 , G01S13/876 , G01S13/88 , G01S2013/466 , G06F3/03545
摘要： A communications device includes a housing and a wireless transceiver and processor carried by the housing and operative with each other. An input screen is carried by the housing and comprises a plurality of spaced transceivers positioned at the input screen and connected to the processor and each configured to transmit a millimeter wave RF signal and receive reflected signals from an object positioned close to the input screen. The processor is configured to determine the location of the object relative to the input screen based on the reflected signals received at each transceiver.
摘要翻译：通信设备包括壳体和由壳体承载并且彼此操作的无线收发器和处理器。输入屏幕由壳体承载并且包括位于输入屏幕处并连接到处理器的多个间隔开的收发器，并且每个收发器被配置为传送毫米波RF信号并且接收来自靠近输入屏幕的物体的反射信号。处理器被配置为基于在每个收发器处接收的反射信号来确定对象相对于输入屏幕的位置。

3. 发明申请

US20130082853A1 DIGITAL TO ANALOG CONVERTER 有权
标题翻译：数字到模拟转换器
公开(公告)号：US20130082853A1
公开(公告)日：2013-04-04
申请号：US13251935
申请日：2011-10-03
申请人： Khurram MUHAMMAD , Tajinder Manku , Semyon Lebedev
发明人： Khurram MUHAMMAD , Tajinder Manku , Semyon Lebedev
IPC分类号： H03M1/06 , H03M3/02 , H03M1/20
CPC分类号： H03M1/201 , H03M1/685 , H03M1/687 , H03M3/30
摘要： A digital-to-analog converter is disclosed. The converter includes a gradient correction module that generates a correction term based on a model of gradient error. The correction term is then applied to the signal path in the digital domain or applied to the output of the digital-to-analog converter in the analog domain. The model used to generate the correction term is based on a vertical gradient error in the array of current source elements, which may be modelled and calibrated using a second-order polynomial. Further, a digital-to-analog converter having a Nyquist DAC and an oversampled DAC is disclosed. When the oversampled DAC is enabled, the resolution of the Nyquist DAC may be increased while slowing the conversion rate.
摘要翻译：公开了一种数模转换器。该转换器包括梯度校正模块，该梯度校正模块基于梯度误差的模型产生校正项。然后将校正项应用于数字域中的信号路径或应用于模拟域中的数模转换器的输出。用于产生校正项的模型基于当前源元素阵列中的垂直梯度误差，其可以使用二阶多项式来建模和校准。此外，公开了具有奈奎斯特DAC和过采样DAC的数模转换器。当使能过采样DAC时，可能会增加奈奎斯特DAC的分辨率，同时降低转换速率。

4. 发明申请

US20130058388A1 WIRELESS COMMUNICATIONS DEVICE WITH IMPAIRMENT COMPENSATION AND ASSOCIATED METHODS 有权
标题翻译：无线通信设备，具有补偿和相关方法
公开(公告)号：US20130058388A1
公开(公告)日：2013-03-07
申请号：US13225783
申请日：2011-09-06
申请人： Khurram MUHAMMAD
发明人： Khurram MUHAMMAD
IPC分类号： H04B1/38
CPC分类号： H04B15/04
摘要： A mobile wireless communications device includes a transceiver, an auxiliary receiver and a controller. The transceiver includes a transmitter and a receiver. The transmitter upconverts a transmit baseband modulated signal and generates an RF modulated signal having a transmit impairment. The auxiliary receiver is coupled to the transmitter and downconverts the RF modulated signal and generates a receive baseband modulated signal having a receive impairment therein spectrally separated from the transmit impairment. The controller is coupled to the transmitter and the auxiliary receiver and estimates the transmit impairment while ignoring the receive impairment based on comparing the transmit baseband modulated signal with the receive baseband modulated signal. The controller generates an impairment compensation signal based upon the estimated transmit impairment.
摘要翻译：移动无线通信设备包括收发机，辅助接收机和控制器。收发器包括发射机和接收机。发射机上变频发射基带调制信号并产生具有发射损伤的RF调制信号。辅助接收机耦合到发射机并且对RF调制信号进行下变频，并产生具有与发射损伤频谱分离的接收损伤的接收基带调制信号。控制器耦合到发射机和辅助接收机，并基于将发射基带调制信号与接收基带调制信号进行比较来估计发射损伤，同时忽略接收损害。控制器基于估计的发射损伤产生减值补偿信号。

5. 发明申请

US20140146917A1 TRANSMITTER WITH PRE-DISTORTION MODULE, A METHOD THEREOF 有权
标题翻译：具有预失真模块的发射机及其方法
公开(公告)号：US20140146917A1
公开(公告)日：2014-05-29
申请号：US13688609
申请日：2012-11-29
申请人： Khurram MUHAMMAD
发明人： Khurram MUHAMMAD
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/3241 , H04B2001/0425
摘要： Aspects of the disclosure provide a transmitter that includes a pre-distortion module and a phase controller. The pre-distortion module is configured to receive a first digital value and generate a first pre-distorted digital value based on the first digital value and a corresponding angle. The first digital value is a combination of an in-phase component and a quadrature component of a signal for transmission. The phase controller is configured to control an amplifier to drive a current according to the first pre-distorted digital value and phase information in relation to the first digital value during a first phase range of a carrier signal determined at least partially based on the angle.
摘要翻译：本公开的方面提供了包括预失真模块和相位控制器的发射机。预失真模块被配置为接收第一数字值并且基于第一数字值和相应的角度生成第一预失真数字值。第一数字值是用于传输的信号的同相分量和正交分量的组合。相位控制器被配置为在至少部分地基于角度确定的载波信号的第一相位范围内，根据第一预失真数字值和相对于第一数字值的相位信息来控制放大器来驱动电流。

6. 发明申请

US20120236960A1 QUADRATURE COMMUNICATIONS DEVICE WITH I ANTENNAS AND Q ANTENNAS AND RELATED METHODS 有权
标题翻译：具有天线和Q天线的平坦通信设备及相关方法
公开(公告)号：US20120236960A1
公开(公告)日：2012-09-20
申请号：US13049243
申请日：2011-03-16
申请人： Khurram MUHAMMAD
发明人： Khurram MUHAMMAD
IPC分类号： H04L27/00
CPC分类号： H04L27/363 , H03F1/0211 , H03F3/211 , H03F3/24 , H03F3/68 , H03F2200/336 , H03F2200/378 , H03F2203/21157 , H03F2203/21193 , H03L7/1974 , H04L27/2067 , H04L2027/0018
摘要： A communications device may include In-phase (I) power amplifiers configured to respectively generate I amplified signals, Quadrature (Q) power amplifiers configured to respectively generate Q amplified signals, I antennas respectively coupled to the I power amplifiers, and Q antennas respectively coupled to the Q power amplifiers. The communications device may also include an I controller coupled to the I power amplifiers and configured to selectively enable some of the I power amplifiers, and a Q controller coupled to the Q power amplifiers and configured to selectively enable some of the Q power amplifiers.
摘要翻译：通信设备可以包括配置成分别产生I放大信号的同相（I）功率放大器，配置成分别产生Q放大信号的正交（Q）功率放大器，分别耦合到I功率放大器的I天线和分别耦合到到Q功率放大器。通信设备还可以包括耦合到I功率放大器并且被配置为选择性地启用I功率放大器中的一些的I控制器，以及耦合到Q功率放大器并被配置为选择性地使能一些Q功率放大器的Q控制器。

7. 发明申请

US20130196719A1 MOBILE WIRELESS COMMUNICATIONS DEVICE INCLUDING SENSING TRANSISTOR AND HYSTERETIC COMPARATOR AND RELATED METHODS 有权
标题翻译：包括感测晶体管和HYSTERETIVE COMPARATOR的移动无线通信设备及相关方法
公开(公告)号：US20130196719A1
公开(公告)日：2013-08-01
申请号：US13360414
申请日：2012-01-27
申请人： Khurram MUHAMMAD , Seong-Ryong Ryu
发明人： Khurram MUHAMMAD , Seong-Ryong Ryu
IPC分类号： H04B1/40
CPC分类号： H04B1/04 , H03F1/0227 , H03F3/19 , H03F3/2173 , H03F3/245 , H03F2200/102 , H03F2200/432 , H03F2200/451 , H03F2200/462
摘要： A mobile wireless communications device may include a portable housing, and a supply modulator carried by the portable housing. The supply modulator may include an output node, a linear amplifier coupled to the output node, and a switching amplifier also coupled to the output node. The switching amplifier may include at least one sensing transistor configured to sense current output from the linear amplifier and generate a drive voltage, and a hysteretic comparator coupled to the at least one sensing transistor and configured to be driven by the drive voltage. The mobile wireless communications device may also include a radio frequency (RF) power amplifier coupled to the output node of the supply modulator, and a wireless transceiver carried by the portable housing and coupled to the RF power amplifier.
摘要翻译：移动无线通信设备可以包括便携式外壳和由便携式外壳承载的电源调制器。电源调制器可以包括输出节点，耦合到输出节点的线性放大器和还耦合到输出节点的开关放大器。开关放大器可以包括至少一个感测晶体管，其被配置为感测来自线性放大器的电流输出并产生驱动电压，以及耦合到至少一个感测晶体管并被配置为由驱动电压驱动的迟滞比较器。移动无线通信设备还可以包括耦合到电源调制器的输出节点的射频（RF）功率放大器和由便携式外壳承载并耦合到RF功率放大器的无线收发器。

8. 发明申请

US20130176011A1 DCDC CONVERTER WITH CONVERTER MODULES THAT CAN BE DYNAMICALLY ENABLED OR DISABLED 有权
标题翻译：具有可以动态启用或禁用的转换器模块的DCDC转换器
公开(公告)号：US20130176011A1
公开(公告)日：2013-07-11
申请号：US13348474
申请日：2012-01-11
申请人： Khurram MUHAMMAD
发明人： Khurram MUHAMMAD
IPC分类号： G05F1/46
CPC分类号： H02M3/1584 , H02M3/1588 , Y02B70/1466
摘要： Provided is an apparatus comprising a DCDC converter having a plurality of converter modules each configured to convert current from a first voltage level to another voltage form. In accordance with an embodiment of the disclosure, the converter modules are configured to be dynamically enabled or disabled such that only each converter module that has been enabled converts current for an output of the DCDC converter. Any inefficiency that would have been introduced by converter modules that are not needed are mitigated or eliminated altogether. The effect is that efficiency can be improved during low load conditions when there is no need to enable all of the converter modules.
摘要翻译：提供了一种装置，其包括具有多个转换器模块的DCDC转换器，每个转换器模块被配置为将电流从第一电压电平转换为另一电压形式。根据本公开的实施例，转换器模块被配置为动态地启用或禁用，使得只有已经被使能的每个转换器模块才能转换DCDC转换器的输出的电流。由不需要的转换器模块引入的任何低效率都将被完全消除或消除。效果是，当不需要使能所有转换器模块时，可以在低负载条件下提高效率。

9. 发明申请

US20120236959A1 QUADRATURE COMMUNICATIONS DEVICE WITH I ANTENNAS AND Q ANTENNAS AND MODULATED POWER SUPPLY AND RELATED METHODS 有权
标题翻译：具有天线和Q天线的调制通信设备和调制电源及相关方法
公开(公告)号：US20120236959A1
公开(公告)日：2012-09-20
申请号：US13049200
申请日：2011-03-16
申请人： Khurram MUHAMMAD
发明人： Khurram MUHAMMAD
IPC分类号： H04L27/00
CPC分类号： H04L27/363 , H03L7/1974 , H04L27/2067 , H04L2027/0018
摘要： A communications device may include an In-phase (I) power amplifier configured to generate an I amplified signal, a Quadrature (Q) power amplifier configured to generate a Q amplified signal, an I digital-to-analog converter (DAC) configured to generate an I signal, and a Q DAC configured to generate a Q signal. The communications device may also include an I power supply circuit coupled to the I power amplifier and to the I DAC and configured to cause the I power amplifier to modulate an I carrier signal into the I amplified signal based upon the I signal, a Q power supply circuit coupled to the Q power amplifier and to the Q DAC and configured to cause the Q power amplifier to modulate a Q carrier signal into the Q amplified signal based upon the Q signal, and at least one antenna coupled to the I and Q power amplifiers.
摘要翻译：通信设备可以包括被配置为产生I放大信号的同相（I）功率放大器，被配置为产生Q放大信号的正交（Q）功率放大器，被配置为产生I信号和配置成产生Q信号的Q DAC。通信设备还可以包括耦合到I功率放大器和I DAC的I电源电路，并且被配置为使得I功率放大器基于I信号将I载波信号调制成I放大信号，Q功率电源电路耦合到Q功率放大器和Q DAC，并被配置为使得Q功率放大器基于Q信号将Q载波信号调制到Q放大信号中，并且至少一个天线耦合到I和Q功率放大器

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