公开(公告)号：US08548031B2

公开(公告)日：2013-10-01

申请号：US12649761

申请日：2009-12-30

申请人： Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes

发明人： Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes

IPC分类号： H04B1/38 ,  H04L1/02

CPC分类号： H04B1/0028 ,  H04J3/0685

摘要： A tuner circuit includes circuitry to produce a first DSP frame based on a first RF signal and includes an inter-chip receiver circuit coupled to an inter-chip link and configured to receive an inter-chip frame. The inter-chip receiver circuit is configured to detect a start of frame symbol of the inter-chip frame and to extract a DSP offset and data related to a second DSP frame from the inter-chip frame. The tuner circuit further includes a digital signal processor coupled to the circuitry and to the inter-chip receiver circuit. The digital signal processor synchronizes the first DSP frame with the second DSP frame based on the start of frame symbol and the digital signal processor offset. The digital signal processor performs a selected antenna diversity operation on the first and second DSP frames to produce an output signal.

摘要翻译： 调谐器电路包括基于第一RF信号产生第一DSP帧的电路，并且包括耦合到芯片间链路并被配置为接收片间帧的芯片间接收器电路。 芯片间接收电路被配置为检测芯片间帧的帧符号的开始，并从芯片间帧提取DSP偏移量和与第二DSP帧有关的数据。 调谐器电路还包括耦合到电路和芯片间接收器电路的数字信号处理器。 数字信号处理器基于帧符号的开始和数字信号处理器的偏移量，将第一DSP帧与第二DSP帧同步。 数字信号处理器在第一和第二DSP帧上执行所选择的天线分集操作以产生输出信号。

公开(公告)号：US20130003637A1

公开(公告)日：2013-01-03

申请号：US13172110

申请日：2011-06-29

申请人： Javier Elenes ,  Dana Taipale ,  Dave Anderton

发明人： Javier Elenes ,  Dana Taipale ,  Dave Anderton

IPC分类号： H04W4/00 ,  H04L27/28 ,  H04H20/71

CPC分类号： H04L27/22 ,  H04H60/12

摘要： A method and apparatus for performing dynamic time alignment of program content extracted from analog and digital radio signals of a simulcast is disclosed. A delay estimation unit of a radio receiver is configured to dynamically determine an amount of received delay between analog-transmitted and digital portions of a radio program. An internal delay to compensate for the received delay may be applied to a data stream corresponding to the portion that is leading. The radio receiver may initially provide audio output from the analog-transmitted portion. In the case of leading analog-transmitted audio, the audio from the analog-transmitted portion may be incrementally delayed to align with the digitally transmitted audio. Once data streams corresponding to the analog-transmitted and digitally transmitted portions are sufficiently aligned in time, a blend operation may be performed. The blend operation may transition the output from being sourced by the analog-transmitted portion to the digitally-transmitted portion.

摘要翻译： 公开了一种从联播模拟和数字无线电信号中提取的节目内容进行动态时间对准的方法和装置。 无线电接收机的延迟估计单元被配置为动态地确定无线电节目的模拟发送和数字部分之间的接收延迟量。 补偿接收到的延迟的内部延迟可以应用于对应于正在引导的部分的数据流。 无线电接收机可以初始地提供来自模拟发送部分的音频输出。 在引导模拟发送音频的情况下，来自模拟发送部分的音频可以被递增地延迟以与数字传输的音频一致。 一旦对应于模拟发送和数字发送部分的数据流在时间上充分对准，则可以执行混合操作。 混合操作可以将来自模拟发送部分的输出转变为数字发送部分。

公开(公告)号：US08265133B2

公开(公告)日：2012-09-11

申请号：US12570645

申请日：2009-09-30

申请人： Javier Elenes

发明人： Javier Elenes

IPC分类号： H03H7/30

CPC分类号： H04B1/1081 ,  H04L25/03038

摘要： A radio receiver has a multipath equalizer that includes a filter and a coefficient estimator. The filter provides a reconstructed signal by applying a transfer function including a reflection coefficient and a delay coefficient to a multipath radio signal. The coefficient estimator adapts the reflection coefficient and the delay coefficient in response to a deviation in magnitude of the reconstructed signal from a normalized value. In one form, the filter evaluates the transfer function by truncating it to eight terms. In another form, the filter includes a delay line having delay elements for storing samples of the multipath radio signal received both before and after a current sample. In yet another form, the multipath equalizer further includes a normalizer that receives the multipath radio signal and provides a normalized multipath radio signal having a normalized magnitude to an input of the filter.

摘要翻译： 无线电接收机具有包括滤波器和系数估计器的多径均衡器。 滤波器通过对多径无线电信号应用包括反射系数和延迟系数的传递函数来提供重构信号。 系数估计器响应于重构信号的幅度与标准化值的偏差来适应反射系数和延迟系数。 在一种形式中，过滤器通过将其截断为八项来评估传递函数。 在另一种形式中，滤波器包括具有用于存储在当前采样之前和之后接收的多径无线电信号的采样的延迟元件的延迟线。 在另一种形式中，多路径均衡器还包括规范化器，其接收多径无线电信号并且向归一化的幅度提供具有归一化幅度的归一化多路径无线电信号到滤波器的输入。

公开(公告)号：US08264387B2

公开(公告)日：2012-09-11

申请号：US11396097

申请日：2006-03-31

申请人： Lawrence Der ,  George Tyson Tuttle ,  Alessandro Piovaccari ,  Chunyu Xin ,  Scott Haban ,  Javier Elenes ,  Dan Kasha ,  Peter Vancorenland

发明人： Lawrence Der ,  George Tyson Tuttle ,  Alessandro Piovaccari ,  Chunyu Xin ,  Scott Haban ,  Javier Elenes ,  Dan Kasha ,  Peter Vancorenland

IPC分类号： H03M1/00

CPC分类号： H04B1/40 ,  H03M3/398 ,  H03M3/40 ,  H03M3/448 ,  H03M3/452 ,  H03M3/50

摘要： A transceiver includes a processor and an analog-to-digital converter. The processor is adapted to in a transmit mode of the transceiver, generate a modulated signal in response to a first digital signal. In a receive mode of the transceiver, the processor is adapted to generate a demodulated signal in response to a second digital signal. The analog-to-digital converter provides the first digital signal in the transmit mode and provides the second digital signal in the receive mode.

摘要翻译： 收发器包括一个处理器和一个模拟 - 数字转换器。 处理器适于在收发器的发射模式中，响应于第一数字信号产生调制信号。 在收发器的接收模式中，处理器适于响应于第二数字信号产生解调信号。 模数转换器以发送模式提供第一数字信号，并在接收模式下提供第二数字信号。

公开(公告)号：US08150346B2

公开(公告)日：2012-04-03

申请号：US11803892

申请日：2007-05-16

申请人： Javier Elenes ,  Dana Taipale

发明人： Javier Elenes ,  Dana Taipale

IPC分类号： H04B1/18

CPC分类号： H03J1/0075

摘要： In one embodiment, the present invention includes a method for receiving an incoming radio frequency (RF) signal in a receiver, estimating a signal-to-noise ratio (SNR) of a constant modulus (CM) signal in the incoming RF signal based on a calculated magnitude of the incoming RF signal, and indicating presence of a modulated signal in the incoming RF signal if the estimated SNR is greater than a threshold.

摘要翻译： 在一个实施例中，本发明包括一种用于在接收机中接收输入射频（RF）信号的方法，基于输入RF信号估计恒定模量（CM）信号的信噪比（SNR），基于 输入RF信号的计算幅度，并且如果估计的SNR大于阈值，则指示在输入RF信号中存在调制信号。

公开(公告)号：US08130882B2

公开(公告)日：2012-03-06

申请号：US12570760

申请日：2009-09-30

申请人： Javier Elenes

发明人： Javier Elenes

IPC分类号： H04B1/10

CPC分类号： H04B1/1081 ,  H04L25/03076

摘要： A radio receiver has a multipath equalizer that includes a filter and a coefficient estimator. The filter provides a reconstructed signal by applying a transfer function including a reflection coefficient and a delay coefficient to a multipath radio signal. The coefficient estimator adapts the reflection coefficient and the delay coefficient in response to a deviation in magnitude of the reconstructed signal from a normalized value. In one form, the coefficient estimator adapts at least one of the reflection coefficient and the delay coefficient by estimating a partial derivative using a predetermined number of terms. In another form, the coefficient estimator acquires an initial value of the delay coefficient by determining a global minimum as a lowest one of a plurality of local minimums, each determined using a plurality of values of the delay coefficient, and selecting the initial value of the delay coefficient as its value at the global minimum.

摘要翻译： 无线电接收机具有包括滤波器和系数估计器的多径均衡器。 滤波器通过对多径无线电信号应用包括反射系数和延迟系数的传递函数来提供重构信号。 系数估计器响应于重构信号的幅度与标准化值的偏差来适应反射系数和延迟系数。 在一种形式中，系数估计器通过使用预定数量的项估计偏导数来适应反射系数和延迟系数中的至少一个。 在另一种形式中，系数估计器通过将全局最小值确定为多个局部最小值中的最小值来获取延迟系数的初始值，每个局部最小值使用多个延迟系数值来确定，并且选择该初始值 延迟系数作为其全球最小值。

公开(公告)号：US20110075719A1

公开(公告)日：2011-03-31

申请号：US12570645

申请日：2009-09-30

申请人： Javier Elenes

发明人： Javier Elenes

IPC分类号： H04B1/10 ,  H03H7/30

CPC分类号： H04B1/1081 ,  H04L25/03038

摘要： A radio receiver has a multipath equalizer that includes a filter and a coefficient estimator. The filter provides a reconstructed signal by applying a transfer function including a reflection coefficient and a delay coefficient to a multipath radio signal. The coefficient estimator adapts the reflection coefficient and the delay coefficient in response to a deviation in magnitude of the reconstructed signal from a normalized value. In one form, the filter evaluates the transfer function by truncating it to eight terms. In another form, the filter includes a delay line having delay elements for storing samples of the multipath radio signal received both before and after a current sample. In yet another form, the multipath equalizer further includes a normalizer that receives the multipath radio signal and provides a normalized multipath radio signal having a normalized magnitude to an input of the filter.

摘要翻译： 无线电接收机具有包括滤波器和系数估计器的多径均衡器。 滤波器通过对多径无线电信号应用包括反射系数和延迟系数的传递函数来提供重构信号。 系数估计器响应于重构信号的幅度与标准化值的偏差来适应反射系数和延迟系数。 在一种形式中，过滤器通过将其截断为八项来评估传递函数。 在另一种形式中，滤波器包括具有用于存储在当前采样之前和之后接收的多径无线电信号的采样的延迟元件的延迟线。 在另一种形式中，多路径均衡器还包括规范化器，其接收多径无线电信号并且向归一化的幅度提供具有归一化幅度的归一化多路径无线电信号到滤波器的输入。

公开(公告)号：US07702307B2

公开(公告)日：2010-04-20

申请号：US11374533

申请日：2006-03-13

申请人： Dana J. Taipale ,  G. Tyson Tuttle ,  Gerald D. Champagne ,  Javier Elenes

发明人： Dana J. Taipale ,  G. Tyson Tuttle ,  Gerald D. Champagne ,  Javier Elenes

IPC分类号： H04B17/00

CPC分类号： H04B1/1027 ,  H04B17/336

摘要： A frequency modulation (FM) radio receiver includes a processing unit that may generate a magnitude value corresponding to a signal strength of each of a plurality of digital samples of a received FM signal. The receiver also includes a noise estimation unit that may filter the magnitude values using a high pass filter and may generate a noise value representative of a noise portion of the received FM signal based upon the filtered magnitude values.

摘要翻译： 一种频率调制（FM）无线电接收机包括一个处理单元，该处理单元可产生对应于所接收的FM信号的多个数字样本中的每一个的信号强度的幅度值。 接收机还包括噪声估计单元，该噪声估计单元可以使用高通滤波器对幅度值进行滤波，并且可以基于滤波的幅值产生代表所接收的FM信号的噪声部分的噪声值。

公开(公告)号：US08949302B2

公开(公告)日：2015-02-03

申请号：US13173365

申请日：2011-06-30

申请人： Javier Elenes

发明人： Javier Elenes

IPC分类号： G06F17/17 ,  H04B1/00 ,  H03M3/00

CPC分类号： H04B1/0021 ,  H03M3/344 ,  H03M3/462 ,  H04B1/001

摘要： A digital radio signal is processed by converting an analog signal to a digital signal, decimating the digital signal using a CIC filter and supplying the decimated digital signal directly to an asynchronous sample rate converter (ASRC). The decimated signal is resampled in the ASRC and the ASRC output is supplied directly to a droop compensation filter to compensate the output of the ASRC. By carefully choosing the response of the CIC filter and the resample rate of the ASRC, aliased artifacts in the pass band can be kept below a threshold magnitude without the need for a channelization filter.

摘要翻译： 数字无线电信号通过将模拟信号转换为数字信号来处理，使用CIC滤波器抽取数字信号并将抽取的数字信号直接提供给异步采样率转换器（ASRC）。 抽样信号在ASRC中重新采样，ASRC输出直接提供给下降补偿滤波器，以补偿ASRC的输出。 通过仔细选择CIC滤波器的响应和ASRC的采样速率，通带中的混叠伪像可以保持在阈值以下，而不需要信道化滤波器。

公开(公告)号：US08774328B2

公开(公告)日：2014-07-08

申请号：US12894316

申请日：2010-09-30

申请人： Javier Elenes ,  Brian D. Green ,  Michael R. May

发明人： Javier Elenes ,  Brian D. Green ,  Michael R. May

IPC分类号： H03D1/00

CPC分类号： H04B1/086 ,  H04H20/30 ,  H04H60/12 ,  H04H2201/18 ,  H04L25/03834 ,  H04L27/0008 ,  H04W52/0229 ,  Y02D70/00

摘要： In one embodiment, a receiver front end circuit can receive and process multiple radio frequency (RF) signals and output downconverted signals corresponding to these signals. In turn, multiple signal processors can be coupled to this front end. Specifically, a first signal processor can receive and process the downconverted signals to output a first signal obtained from content of a first RF signal, and a second signal processor can receive and process the downconverted signals to output a second signal obtained from content of a second RF signal. In addition, the apparatus may include a detection circuit coupled to the receiver front end circuit to detect presence of at least the second signal and enable the second signal processor responsive to the detected presence.

摘要翻译： 在一个实施例中，接收器前端电路可以接收和处理多个射频（RF）信号并输出​​与这些信号对应的下变频信号。 反过来，多个信号处理器可以耦合到该前端。 具体地，第一信号处理器可以接收并处理下变频信号以输出从第一RF信号的内容获得的第一信号，并且第二信号处理器可以接收并处理下变频信号以输出从第二RF信号的内容获得的第二信号 射频信号。 此外，该装置可以包括耦合到接收器前端电路的检测电路，以检测至少第二信号的存在，并使第二信号处理器能够响应于检测到的存在。