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1.发明申请公开(公告)号：US20180082622A1
公开(公告)日：2018-03-22
申请号：US15711817
申请日：2017-09-21
申请人： Hopil Bae , Mahdi Farrokh Baroughi , Mohammad B. Vahid Far , Xiang Lu , Bo Yang , Derek K. Shaeffer , Henry C. Jen
发明人： Hopil Bae , Mahdi Farrokh Baroughi , Mohammad B. Vahid Far , Xiang Lu , Bo Yang , Derek K. Shaeffer , Henry C. Jen
CPC分类号： G09G3/006 , G09G3/32 , G09G3/367 , G09G2310/0275
摘要： The present techniques are capable of identifying and pinpointing defective microdrivers and/or row/column drivers either before or after any μLEDs have been placed on the display. Using the architectures described herein, test data may be delivered in a parallel fashion to the drivers from support circuitry, such as a timing controller and/or a main board, and outputs based on the test data may be similarly delivered back to the support circuitry do determine which drivers are defective. This yields access to the output of every microdriver and row drier, thus enabling the identification of specific defective elements.
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公开(公告)号：US08737529B2
公开(公告)日：2014-05-27
申请号：US12689058
申请日：2010-01-18
IPC分类号： H04L27/00
CPC分类号： H04L5/0023 , H04B7/0682 , H04L5/0048 , H04L25/0204 , H04L25/0224
摘要： Embodiments for at least one method and apparatus of transmitting a transmission signal through a plurality of antennas are disclosed. One method includes generating at least one dynamically adjustable phase shifted signal from the transmission signal. The transmission signal and the at least one dynamically adjustable phase shifted signal are separately amplified. The amplified transmission signal and the amplified at least one dynamically adjustable phase shifted signal are combined within a multiport network. An output signal for each of the plurality of antennas is generated by the multiport network.
摘要翻译： 公开了通过多个天线发送传输信号的至少一种方法和装置的实施例。 一种方法包括从传输信号产生至少一个动态可调的相移信号。 传输信号和至少一个动态可调相移信号被分别放大。 放大的发送信号和放大的至少一个动态可调相移信号在多端口网络内组合。 由多端口网络生成多个天线中的每一个的输出信号。
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公开(公告)号：US08275319B2
公开(公告)日：2012-09-25
申请号：US12719169
申请日：2010-03-08
IPC分类号： H04B1/02
CPC分类号： H04L27/2627 , H04L25/03834 , H04L27/2614 , H04L27/36
摘要： Embodiments for methods and apparatuses for processing a multi-carrier signal are disclosed. One method includes shaping a frequency spectrum of a multi-carrier transmit signal wherein an amplitude of a plurality of subcarriers of the multi-carrier transmit signal is increased relative to at least one other subcarrier of the multi-carrier transmit signal. The shaped frequency spectrum multi-carrier transmit signal is amplified with a power amplifier, wherein a power level of an output of the power amplifier is greater than a rated power level of the power amplifier.
摘要翻译： 公开了用于处理多载波信号的方法和装置的实施例。 一种方法包括对多载波发射信号的频谱进行整形，其中多载波发射信号的多个子载波的幅度相对于多载波发射信号的至少一个其他副载波增加。 成形频谱多载波发射信号用功率放大器放大，其中功率放大器的输出的功率电平大于功率放大器的额定功率电平。
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公开(公告)号：US20110176635A1
公开(公告)日：2011-07-21
申请号：US12689058
申请日：2010-01-18
IPC分类号： H04L27/00
CPC分类号： H04L5/0023 , H04B7/0682 , H04L5/0048 , H04L25/0204 , H04L25/0224
摘要： Embodiments for at least one method and apparatus of transmitting a transmission signal through a plurality of antennas are disclosed. One method includes generating at least one dynamically adjustable phase shifted signal from the transmission signal. The transmission signal and the at least one dynamically adjustable phase shifted signal are separately amplified. The amplified transmission signal and the amplified at least one dynamically adjustable phase shifted signal are combined within a multiport network. An output signal for each of the plurality of antennas is generated by the multiport network.
摘要翻译： 公开了通过多个天线发送传输信号的至少一种方法和装置的实施例。 一种方法包括从传输信号产生至少一个动态可调的相移信号。 传输信号和至少一个动态可调相移信号被分别放大。 放大的发送信号和放大的至少一个动态可调相移信号在多端口网络内组合。 由多端口网络生成多个天线中的每一个的输出信号。
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公开(公告)号：US08437697B2
公开(公告)日：2013-05-07
申请号：US13592813
申请日：2012-08-23
IPC分类号： H04B1/02
CPC分类号： H04L27/2627 , H04L25/03834 , H04L27/2614 , H04L27/36
摘要： Embodiments for methods and apparatuses for processing a multi-carrier signal are disclosed. One method includes shaping a frequency spectrum of a multi-carrier transmit signal wherein an amplitude of a plurality of subcarriers of the multi-carrier transmit signal is increased relative to at least one other subcarrier of the multi-carrier transmit signal. The shaped frequency spectrum multi-carrier transmit signal is amplified with a power amplifier, wherein a power level of an output of the power amplifier is greater than a rated power level of the power amplifier.
摘要翻译： 公开了用于处理多载波信号的方法和装置的实施例。 一种方法包括对多载波发射信号的频谱进行整形，其中多载波发射信号的多个子载波的幅度相对于多载波发射信号的至少一个其他副载波增加。 成形频谱多载波发射信号用功率放大器放大，其中功率放大器的输出的功率电平大于功率放大器的额定功率电平。
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公开(公告)号：US07382834B2
公开(公告)日：2008-06-03
申请号：US10841290
申请日：2004-05-06
IPC分类号： H04L25/49
CPC分类号： H03F1/32
摘要： Apparatus, systems, and methods implementing techniques for estimating a relative rotation between a first complex signal and a second complex signal. The first complex signal is quantized to produce a quantized signal, and the quantized signal and an additional signal are combined, where the additional signal corresponds to the second complex signal. An estimate of a relative rotation between the first complex signal and the second complex signal is generated in accordance with the combined signal.
摘要翻译： 实现用于估计第一复信号和第二复信号之间的相对旋转的技术的装置，系统和方法。 第一复信号被量化以产生量化信号，并且量化信号和附加信号被组合，其中附加信号对应于第二复信号。 根据组合信号产生第一复信号和第二复信号之间的相对旋转的估计。
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公开(公告)号：US07248628B2
公开(公告)日：2007-07-24
申请号：US09798727
申请日：2001-03-02
申请人： Derek K. Shaeffer
发明人： Derek K. Shaeffer
IPC分类号： H03H7/30
CPC分类号： H03H15/00
摘要： A system includes a sampling circuit, an analog filter, an analog input, a modulator, and a modulating source. The modulating source includes an output that generates an impulse response encoded as a sigma-delta sequence. The output of the modulating source is coupled to the modulator, which is coupled to the analog input. The analog filter is coupled to the modulator and the sampling circuit. When the system is configured as a filter, an analog signal is modulated with the sigma-delta sequence. The modulated signal is filtered and then sampled.
摘要翻译： 系统包括采样电路，模拟滤波器，模拟输入，调制器和调制源。 调制源包括产生编码为Σ-Δ序列的脉冲响应的输出。 调制源的输出耦合到调制器，调制器耦合到模拟输入。 模拟滤波器耦合到调制器和采样电路。 当系统配置为滤波器时，模拟信号用Σ-Δ序列调制。 对调制信号进行滤波，然后采样。
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8.发明申请公开(公告)号：US20100232413A1
公开(公告)日：2010-09-16
申请号：US12719169
申请日：2010-03-08
IPC分类号： H04J1/00
CPC分类号： H04L27/2627 , H04L25/03834 , H04L27/2614 , H04L27/36
摘要： Embodiments for methods and apparatuses for processing a multi-carrier signal are disclosed. One method includes shaping a frequency spectrum of a multi-carrier transmit signal wherein an amplitude of a plurality of subcarriers of the multi-carrier transmit signal is increased relative to at least one other subcarrier of the multi-carrier transmit signal. The shaped frequency spectrum multi-carrier transmit signal is amplified with a power amplifier, wherein a power level of an output of the power amplifier is greater than a rated power level of the power amplifier.
摘要翻译： 公开了用于处理多载波信号的方法和装置的实施例。 一种方法包括对多载波发射信号的频谱进行整形，其中多载波发射信号的多个子载波的幅度相对于多载波发射信号的至少一个其他副载波增加。 成形频谱多载波发射信号用功率放大器放大，其中功率放大器的输出的功率电平大于功率放大器的额定功率电平。
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9.发明授权公开(公告)号：US07132885B2
公开(公告)日：2006-11-07
申请号：US11088676
申请日：2005-03-23
IPC分类号： H03F1/36
CPC分类号： H03F3/45183 , H03F1/0205 , H03F1/3211 , H03F1/3247 , H03F1/3294 , H03F3/3022 , H03F2203/45366 , H03F2203/45644 , H03F2203/45652
摘要： A circuit is provided that includes a Cartesian feedback loop. The Cartesian feedback loop includes one or more operational amplifiers. At least one of the operational amplifiers includes two or more cascaded amplifier stages and one or more bypass amplifier stages. The bypass amplifier stages are connected in parallel with the cascaded amplifier stages.
摘要翻译： 提供了包括笛卡尔反馈回路的电路。 笛卡尔反馈回路包括一个或多个运算放大器。 至少一个运算放大器包括两个或多个级联放大器级和一个或多个旁路放大器级。 旁路放大器级与级联放大器级并联连接。
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公开(公告)号：US07164313B2
公开(公告)日：2007-01-16
申请号：US10988432
申请日：2004-11-12
IPC分类号： H03F1/36
CPC分类号： H03G3/3042 , H03F1/0205 , H03F1/3247 , H03F1/3252 , H03F1/34 , H03F3/24 , H03F2200/105 , H03F2200/465
摘要： Circuits, methods, and systems are provided for opening a primary feedback loop in a transmitter. An auxiliary feedback loop can be closed when the primary feedback loop is opened, and a controller can match a gain of the primary feedback loop to another gain in the transmitter.
摘要翻译： 提供电路，方法和系统用于打开发射机中的主反馈环路。 当主反馈回路打开时，辅助反馈回路可以闭合，并且控制器可以将主反馈回路的增益与变送器中的另一增益相匹配。
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