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41. 发明申请

US20130063191A1 Methods and Circuits for Duty-Cycle Correction 审中-公开
标题翻译：用于周期校正的方法和电路
公开(公告)号：US20130063191A1
公开(公告)日：2013-03-14
申请号：US13612540
申请日：2012-09-12
申请人： Dinesh Patil , Mohammad Hekmat , Kambiz Kaviani , Amir Amirkhany
发明人： Dinesh Patil , Mohammad Hekmat , Kambiz Kaviani , Amir Amirkhany
IPC分类号： H03K3/017 , H03L7/08
CPC分类号： H03L7/0812 , H03K5/1565
摘要： A duty-cycle correction circuit calibrates the duty cycle of a periodic input signal. The correction circuit includes a state machine that samples the input signal using a sample signal of a sample period. The sample period is selected to scan a period of the input signal over a number of sample periods. The resultant difference between the number of high and low samples provides a measure of the duty cycle deviation from e.g. 50%. An adjustable delay circuit adjusts the relative timing of the rising and falling edges of the input signal, and thus the duty cycle, responsive to the measure of duty cycle.
摘要翻译：占空比校正电路校准周期性输入信号的占空比。校正电路包括使用采样周期的采样信号对输入信号进行采样的状态机。选择采样周期以在多个采样周期上扫描输入信号的周期。所得到的高和低样本数之间的差异提供了与例如数据的占空比偏差的度量。 50％。可调节延迟电路调整输入信号的上升沿和下降沿的相对定时，从而根据占空比的测量来调整占空比。

42. 发明授权

US08325832B2 Analog multi-tone receiver 失效
标题翻译：模拟多音调接收机
公开(公告)号：US08325832B2
公开(公告)日：2012-12-04
申请号：US12369624
申请日：2009-02-11
申请人： Amir Amirkhany
发明人： Amir Amirkhany
IPC分类号： H04L27/28 , H04K1/10
CPC分类号： H04L27/2626 , H04L27/2647 , H04L2025/03414
摘要： An analog multi-tone receiver includes an interface for receiving a data transmission signal containing N sub-channel signals corresponding to N active sub-channels. The receiver includes a plurality of samplers to sample, during each time interval of a sequence of time intervals, the received signal in parallel to produce a plurality of data sets, each sampler having a distinct threshold level. The receiver includes a decoder to jointly decode the plurality of data sets to determine a plurality of data symbols including at least one data symbol for each of the N active sub-channels.
摘要翻译：模拟多音调接收机包括用于接收包含对应于N个有效子信道的N个子信道信号的数据传输信号的接口。接收机包括多个采样器，以在时间序列序列的每个时间间隔期间采样并行接收的信号以产生多个数据集，每个采样器具有不同的阈值电平。接收机包括解码器，以共同解码多个数据集，以确定包括N个有效子信道中的每一个的至少一个数据符号的多个数据符号。

43. 发明授权

US07817743B2 Multi-tone system with oversampled precoders 有权
标题翻译：具有过采样预编码器的多音系统
公开(公告)号：US07817743B2
公开(公告)日：2010-10-19
申请号：US11022468
申请日：2004-12-22
申请人： Vladimir M. Stojanovic , Amir Amirkhany , Jared L. Zerbe
发明人： Vladimir M. Stojanovic , Amir Amirkhany , Jared L. Zerbe
IPC分类号： H04L27/00
CPC分类号： H04L25/03343 , H04L27/2637
摘要： A multi-tone system includes a data transmission circuit with an interface for receiving a data stream for transmission, a data steam splitter that splits the data stream to produce multiple substreams and a plurality of parallel data preparation circuits. Each data preparation circuit prepares a respective substream for transmission and generates a respective sub-channel signal. At least a first data preparation circuit of the plurality of parallel data preparation circuits includes a first analog filter for filtering a first substream. The first analog filter operates at a sample rate greater than the respective symbol rate of the first substream. The first analog filter provides pre-emphasis of the respective sub-channel signal and attenuation of signals outside of a respective band of frequencies corresponding to the respective sub-channel signal. The data transmission circuit also includes a combiner for combining respective sub-channel signals to generate a data transmission signal.
摘要翻译：多音系统包括具有用于接收用于传输的数据流的接口的数据传输电路，分割数据流以产生多个子流的数据蒸汽分配器和多个并行数据准备电路。每个数据准备电路准备相应的子流进行传输，并产生相应的子信道信号。多个并行数据准备电路的至少第一数据准备电路包括用于对第一子流进行滤波的第一模拟滤波器。第一模拟滤波器以大于第一子流的相应符号率的采样率操作。第一模拟滤波器提供相应子信道信号的预加重和对应于相应子信道信号的相应频带之外的信号的衰减。数据传输电路还包括用于组合各个子信道信号以产生数据传输信号的组合器。

44. 发明申请

US20100020898A1 Adjustable Dual-Band Link 失效
标题翻译：可调双频链路
公开(公告)号：US20100020898A1
公开(公告)日：2010-01-28
申请号：US12574629
申请日：2009-10-06
申请人： Vladimir M. Stojanovic , Amir Amirkhany , Jared L. Zerbe
发明人： Vladimir M. Stojanovic , Amir Amirkhany , Jared L. Zerbe
IPC分类号： H04L27/00
CPC分类号： H04L27/2637 , H04L5/06 , H04L27/2653
摘要： A communication system utilizing an adjustable link has at least a first data transmission circuit including at least a first communication link circuit. The first communication link circuit has a baseband circuit and at least a passband circuit. The baseband circuit corresponds to a baseband sub-channel and the passband circuit corresponds to a passband sub-channel. The first communication link circuit also includes a circuit that distributes a first subset of a data stream having a first symbol rate to the baseband circuit and a second subset of the data stream having a second symbol rate to the passband circuit. The baseband sub-channel and the passband sub-channel are separated by an adjacent guardband of frequencies. The passband carrier frequency is adjusted to define the guardband and the guardband corresponds to a first notch in a channel response of a first communications channel.
摘要翻译：利用可调节链路的通信系统具有至少包括至少第一通信链路电路的第一数据传输电路。第一通信链路电路具有基带电路和至少一个通带电路。基带电路对应于基带子信道，通带电路对应于通带子信道。第一通信链路电路还包括将具有第一符号率的数据流的第一子集分配给基带电路的电路和具有第二符号率的数据流的第二子集传送给通带电路。基带子信道和通带子信道被相邻的频带保护带隔开。调整通带载波频率以定义保护带，并且保护频带对应于第一通信信道的信道响应中的第一个陷波。

45. 发明授权

US07483491B2 Linear transformation circuits 失效
标题翻译：线性变换电路
公开(公告)号：US07483491B2
公开(公告)日：2009-01-27
申请号：US11557101
申请日：2006-11-06
申请人： Amir Amirkhany , Vladimir Stojanovic , Elad Alon , Jared LeVan Zerbe , Mark A. Horowitz
发明人： Amir Amirkhany , Vladimir Stojanovic , Elad Alon , Jared LeVan Zerbe , Mark A. Horowitz
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： G06F17/141 , G06J1/005
摘要： A transform circuit includes a first circuit and a second circuit. The first circuit and the second circuit implement first and second mappings that together generate a pre-defined transform of N digital data symbols. The first circuit maps a set of N digital data symbols from N parallel data streams to N analog data symbols by generating N sets of first weighted sums of the N digital data symbols. Each respective first weighted sum is defined by a respective set of pre-determined first weighting values in a first matrix. The second circuit maps the N analog data symbols to a sequence of N output signals over N time intervals. Each of the N output signals corresponds to a respective second weighted sum of the N analog data symbols. Each respective second weighted sum is defined by a respective set of pre-determined second weighting values in a second matrix.
摘要翻译：变换电路包括第一电路和第二电路。第一电路和第二电路实现一起产生N个数字数据符号的预定义变换的第一和第二映射。第一电路通过产生N个数字数据符号的第一加权和的N组，将来自N个并行数据流的一组N个数字数据符号映射到N个模拟数据符号。每个相应的第一加权和由第一矩阵中的预定的第一加权值的相应集合来定义。第二电路在N个时间间隔内将N个模拟数据符号映射到N个输出信号的序列。 N个输出信号中的每一个对应于N个模拟数据符号的相应的第二加权和。每个相应的第二加权和由第二矩阵中的预定的第二加权值的相应集合来定义。

46. 发明授权

US07349484B2 Adjustable dual-band link 失效
标题翻译：可调节双频链路
公开(公告)号：US07349484B2
公开(公告)日：2008-03-25
申请号：US11022469
申请日：2004-12-22
申请人： Vladimir M. Stojanovic , Amir Amirkhany , Jared L. Zerbe
发明人： Vladimir M. Stojanovic , Amir Amirkhany , Jared L. Zerbe
IPC分类号： H04L27/28
CPC分类号： H04L27/2637 , H04L5/06 , H04L27/2653
摘要： A communication system utilizing an adjustable link has at least a first data transmission circuit including at least a first communication link circuit. The first communication link circuit has a baseband circuit and at least a passband circuit. The baseband circuit corresponds to a baseband sub-channel and the passband circuit corresponds to a passband sub-channel. The first communication link circuit also includes a circuit that distributes a first subset of a data stream having a first symbol rate to the baseband circuit and a second subset of the data stream having a second symbol rate to the passband circuit. The baseband sub-channel and the passband sub-channel are separated by an adjacent guardband of frequencies. The passband carrier frequency is adjusted to define the guardband and the guardband corresponds to a first notch in a channel response of a first communications channel.
摘要翻译：利用可调节链路的通信系统具有至少包括至少第一通信链路电路的第一数据传输电路。第一通信链路电路具有基带电路和至少一个通带电路。基带电路对应于基带子信道，通带电路对应于通带子信道。第一通信链路电路还包括将具有第一符号率的数据流的第一子集分配给基带电路的电路和具有第二符号速率的数据流的第二子集给通带电路。基带子信道和通带子信道被相邻的频带保护带隔开。调整通带载波频率以定义保护带，并且保护频带对应于第一通信信道的信道响应中的第一个陷波。

47. 发明申请

US20070058744A1 Linear Transformation Circuits 失效
标题翻译：线性变换电路
公开(公告)号：US20070058744A1
公开(公告)日：2007-03-15
申请号：US11557101
申请日：2006-11-06
申请人： Amir Amirkhany , Vladimir Stojanovic , Elad Alon , Jared Zerbe , Mark Horowitz
发明人： Amir Amirkhany , Vladimir Stojanovic , Elad Alon , Jared Zerbe , Mark Horowitz
IPC分类号： H04K1/10 , H04J11/00 , G06F17/14
CPC分类号： G06F17/141 , G06J1/005
摘要： A transform circuit includes a first circuit and a second circuit. The first circuit and the second circuit implement first and second mappings that together generate a pre-defined transform of N digital data symbols. The first circuit maps a set of N digital data symbols from N parallel data streams to N analog data symbols by generating N sets of first weighted sums of the N digital data symbols. Each respective first weighted sum is defined by a respective set of pre-determined first weighting values in a first matrix. The second circuit maps the N analog data symbols to a sequence of N output signals over N time intervals. Each of the N output signals corresponds to a respective second weighted sum of the N analog data symbols. Each respective second weighted sum is defined by a respective set of pre-determined second weighting values in a second matrix.
摘要翻译：变换电路包括第一电路和第二电路。第一电路和第二电路实现一起产生N个数字数据符号的预定义变换的第一和第二映射。第一电路通过产生N个数字数据符号的第一加权和的N组，将来自N个并行数据流的一组N个数字数据符号映射到N个模拟数据符号。每个相应的第一加权和由第一矩阵中的预定的第一加权值的相应集合来定义。第二电路在N个时间间隔内将N个模拟数据符号映射到N个输出信号的序列。 N个输出信号中的每一个对应于N个模拟数据符号的相应的第二加权和。每个相应的第二加权和由第二矩阵中的预定的第二加权值的相应集合来定义。

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