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

US20130322571A1 SAMPLE RATE ESTIMATOR FOR DIGITAL RADIO RECEPTION SYSTEMS 有权
标题翻译：用于数字无线电接收系统的样本速率估计器
公开(公告)号：US20130322571A1
公开(公告)日：2013-12-05
申请号：US13485746
申请日：2012-05-31
申请人： Brian Green , javier Elenes
发明人： Brian Green , javier Elenes
IPC分类号： H04L27/00
CPC分类号： H04L25/0262 , H04H40/18 , H04L7/0029 , H04L7/005 , H04L25/05
摘要： A method and apparatus for adjusting a sample rate for an asynchronous sample rate converter is disclosed. In one embodiment, an apparatus includes an asynchronous sample rate converter (ASRC) that is configured to receive a digital data stream provided at a first sample rate. The ASRC is configured to convert the digital data stream to a second sample rate at which it is output. The apparatus also includes a sample rate estimator coupled to an interface through which samples from the digital data stream are conveyed subsequent to conversion to the second sample rate. The sample rate estimator is further coupled to the ASRC, and configured to adjust the second sample rate based on information obtained from the interface.
摘要翻译：公开了一种用于调整异步采样率转换器采样率的方法和装置。在一个实施例中，一种装置包括异步采样率转换器（ASRC），其被配置为接收以第一采样率提供的数字数据流。 ASRC被配置为将数字数据流转换成其输出的第二采样率。该装置还包括耦合到接口的采样率估计器，通过该接口，来自数字数据流的样本在转换到第二采样率之后被传送。采样率估计器还耦合到ASRC，并且被配置为基于从接口获得的信息来调整第二采样率。

2. 发明授权

US08548031B2 Antenna diversity system with frame synchronization 有权
标题翻译：具有帧同步的天线分集系统
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。

3. 发明申请

US20130003637A1 DYNAMIC TIME ALIGNMENT OF AUDIO SIGNALS IN SIMULCAST RADIO RECEIVERS 审中-公开
标题翻译：音频信号在SIMULCAST无线电接收机中的动态时间对齐
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。

4. 发明授权

US08265133B2 Radio receiver having a multipath equalizer 失效
标题翻译：具有多径均衡器的无线电接收机
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。

5. 发明授权

US08264387B2 Transceiver having multiple signal processing modes of operation 有权
标题翻译：收发器具有多种信号处理操作模式
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。

6. 发明授权

US08150346B2 Detecting a signal in the presence of noise 有权
标题翻译：在存在噪声的情况下检测信号
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。

7. 发明授权

US08130882B2 Radio receiver having a multipath equalizer 有权
标题翻译：具有多径均衡器的无线电接收机
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。

8. 发明申请

US20110075719A1 Radio Receiver Having a Multipath Equalizer 失效
标题翻译：具有多路径均衡器的无线电接收机
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。

9. 发明授权

US07702307B2 Frequency modulation radio receiver including a noise estimation unit 失效
标题翻译：包括噪声估计单元的调频无线电接收机
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。

10. 发明授权

US09001945B2 Providing phase diversity combining of digital radio broadcast signals 有权
标题翻译：提供数字无线电广播信号的相位分集组合
公开(公告)号：US09001945B2
公开(公告)日：2015-04-07
申请号：US13162164
申请日：2011-06-16
申请人： Javier Elenes , Lokesh Duraiappah
发明人： Javier Elenes , Lokesh Duraiappah
IPC分类号： H04B7/10 , H04L1/02 , H04B7/08
CPC分类号： H04B7/0845
摘要： In one embodiment, a method for performing antenna diversity combining for digitally broadcast radio signals includes generating a first signal quality metric for a first signal obtained from an incoming digitally broadcast radio signal received in a first signal path, and similarly generating a second signal quality metric for a second signal obtained from the radio signal received in a second signal path. Then the first and second signals from these paths can be coherently combined based on the signal quality metrics to obtain a combined frequency domain symbol. In some embodiments, this combined frequency domain symbol may be remodulated to a time domain symbol. Also in some embodiments N tuners can be daisy chained to generate a final output that is either a frequency domain symbol of combined sub-carriers, soft bits to a forward error correction (FEC) decoder, or a remodulated time domain symbol. As a further possibility, each of the N tuners can use a different local oscillator (LO) frequency.
摘要翻译：在一个实施例中，一种用于执行用于数字广播无线电信号的天线分集组合的方法包括为从在第一信号路径中接收的输入数字广播无线电信号获得的第一信号生成第一信号质量度量，并且类似地生成第二信号质量度量用于从在第二信号路径中接收的无线电信号获得的第二信号。然后，可以基于信号质量度量将来自这些路径的第一和第二信号相干地组合以获得组合的频域符号。在一些实施例中，该组合频域符号可以被重新调制为时域符号。同样在一些实施例中，N个调谐器可以被菊花链链接以产生作为组合子载波的频域符号，到前向纠错（FEC）解码器的软比特或重新调制的时域符号的最终输出。作为另外的可能性，N个调谐器中的每一个可以使用不同的本地振荡器（LO）频率。

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