公开(公告)号：US20120321012A1

公开(公告)日：2012-12-20

申请号：US13162164

申请日：2011-06-16

Applicant: Javier Elenes ,  Lokesh Duraiappah

Inventor： Javier Elenes ,  Lokesh Duraiappah

IPC: H04B15/00 ,  H04B1/10

CPC classification number: H04B7/0845

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08155610B2

公开(公告)日：2012-04-10

申请号：US12156275

申请日：2008-05-30

Applicant: Javier Elenes

Inventor： Javier Elenes

IPC: H04B1/16

CPC classification number: H04B7/0857 ,  H04B1/1081

Abstract: In one embodiment, the present invention provide a method for detecting signal quality metrics of a constant modulo (CM) signal received in two different signal paths, and combining the signal from the two signal paths based at least in part on the detected first and second signal quality metrics. Such method may be implemented in a radio receiver such as an automobile receiver.

Abstract translation: 在一个实施例中，本发明提供了一种用于检测在两个不同信号路径中接收的恒定模（CM）信号的信号质量度量的方法，并且至少部分地基于所检测的第一和第二信号组合来自两个信号路径的信号 信号质量指标。 这种方法可以在诸如汽车接收机的无线电接收机中实现。

公开(公告)号：US20120082271A1

公开(公告)日：2012-04-05

申请号：US12894316

申请日：2010-09-30

Applicant: JAVIER ELENES ,  Brian D. Green ,  Michael R. May

Inventor： JAVIER ELENES ,  Brian D. Green ,  Michael R. May

IPC: H04L27/06

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110275339A1

公开(公告)日：2011-11-10

申请号：US12799983

申请日：2010-05-06

Applicant: John L. Allen ,  Javier Elenes ,  Gerald D. Champagne

Inventor： John L. Allen ,  Javier Elenes ,  Gerald D. Champagne

IPC: H04B17/00

CPC classification number: H04B1/1676 ,  H04H40/81

Abstract: Methods and systems for blending the audio output from a received FM signal between stereo and mono in which the L−R (left-minus-right) gain of the FM MPX may be adjusted as a function of RF signal to noise ratio (SNR) and the L+R (left-plus-right) noise level. During blending, the L−R gain based on the RF SNR and L+R noise may be reduced in a manner such that the total noise is kept substantially constant throughout the stereo-to-mono blend region.

Abstract translation: 用于混合来自立体声和单声道之间的接收的FM信号的音频输出的方法和系统，其中FM MPX的L-R（左减右）增益可以被调整为RF信噪比（SNR）的函数， 和L + R（左右右）噪声电平。 在混合期间，基于RF SNR和L + R噪声的L-R增益可以以这样一种方式被减少，使得总体噪声在整个立体到单声道混合区域中保持基本恒定。

公开(公告)号：US20110158339A1

公开(公告)日：2011-06-30

申请号：US12650166

申请日：2009-12-30

Applicant: George Tyson Tuttle ,  Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes ,  Lokesh Duraiappah

Inventor： George Tyson Tuttle ,  Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes ,  Lokesh Duraiappah

IPC: H04L27/00 ,  H04L27/06 ,  H04B7/02

CPC classification number: H04B7/0682 ,  H04L25/03866

Abstract: In an embodiment, a tuner circuit includes an inter-chip receiver circuit configurable to couple to a first inter-chip communication link to receive a first data stream and includes an analog-to-digital converter configured to convert a radio frequency signal into a digital version of the radio frequency signal. The tuner circuit further includes a digital signal processor coupled to the inter-chip receiver circuit and the analog-to-digital converter. The digital signal processor is configurable to generate an output signal related to at least one of the first data stream and the digital version of the radio frequency signal based on a selected operating mode.

Abstract translation: 在一个实施例中，调谐器电路包括可配置为耦合到第一芯片间通信链路以接收第一数据流的芯片间接收器电路，并且包括被配置为将射频信号转换为数字 版本的射频信号。 调谐器电路还包括耦合到芯片间接收器电路和模数转换器的数字信号处理器。 数字信号处理器可配置为基于所选择的操作模式生成与第一数据流和数字版本的数字版本中的至少一个相关的输出信号。

公开(公告)号：US07835468B2

公开(公告)日：2010-11-16

申请号：US11374577

申请日：2006-03-13

Applicant: Javier Elenes ,  Dana J. Taipale

Inventor： Javier Elenes ,  Dana J. Taipale

IPC: H04L27/00 ,  H03K7/06 ,  H03D3/00

CPC classification number: H03D3/002 ,  H03D3/006

Abstract: A radio receiver includes a processing unit that may generate a respective phase value corresponding to each of a plurality of digital samples of a received complex frequency modulation (FM) signal. The receiver also includes an impulse unit that may detect whether a linear combination of a phase value of a current sample and a phase value of one or more previous samples will produce an impulse at an output of an FM demodulator. If the impulse unit detects that an impulse will be produced at the output, the impulse unit may replace the output of the FM discriminator with a predetermined value.

Abstract translation: 无线电接收机包括处理单元，该处理单元可以生成与接收的复频调制（FM）信号的多个数字样本中的每一个对应的各个相位值。 接收机还包括一个脉冲单元，其可以检测当前采样的相位值和一个或多个先前采样的相位值的线性组合是否将在FM解调器的输出端产生脉冲。 如果脉冲单元检测到在输出端产生脉冲，脉冲单元可以用预定值代替FM鉴频器的输出。

公开(公告)号：US20070232239A1

公开(公告)日：2007-10-04

申请号：US11396097

申请日：2006-03-31

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

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

IPC: H04B1/38

CPC classification number: H04B1/40 ,  H03M3/398 ,  H03M3/40 ,  H03M3/448 ,  H03M3/452 ,  H03M3/50

Abstract: 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.

Abstract translation: 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：US08976969B2

公开(公告)日：2015-03-10

申请号：US13172208

申请日：2011-06-29

Applicant: Javier Elenes ,  Dana Taipale ,  Dave Anderton

Inventor： Javier Elenes ,  Dana Taipale ,  Dave Anderton

IPC: H04L27/00 ,  H04H40/18

CPC classification number: H04H40/18 ,  H04H2201/18

Abstract: A method and apparatus is disclosed in which delay is applied to analog-sourced audio in a radio simulcast when the analog signal initially leads the digital signal. A radio receiver is configured to receive a simulcast radio program broadcast with an analog signal and a digital signal. The program content can be extracted from either the analog or digital signals, with the audio source eventually being blended to the digital signal. Audio is initially provided based on the analog signal. If the analog signal is initially leading the digital signal, delay is applied a data stream corresponding to the analog signal relative to a data stream corresponding to the digital signal. Delay applied to the data stream corresponding to the analog signal is increased at a rate that avoids audio artifacts of the output audio. The blend is performed when the data streams are aligned in time.

Abstract translation: 公开了一种方法和装置，其中当模拟信号最初引导数字信号时，在无线电联播中将延迟应用于模拟源音频。 无线电接收机被配置为接收用模拟信号和数字信号广播的同播广播节目。 可以从模拟或数字信号中提取节目内容，音频源最终被混合到数字信号中。 最初根据模拟信号提供音频。 如果模拟信号最初引导数字信号，则延迟相对于与数字信号对应的数据流对应于模拟信号的数据流。 对应于模拟信号的数据流的延迟以避免输出音频的音频伪像的速率增加。 当数据流在时间上对齐时执行混合。

公开(公告)号：US08737532B2

公开(公告)日：2014-05-27

申请号：US13485746

申请日：2012-05-31

Applicant: Brian Green ,  Javier Elenes

Inventor： Brian Green ,  Javier Elenes

IPC: H03K9/00 ,  H04L27/00

CPC classification number: H04L25/0262 ,  H04H40/18 ,  H04L7/0029 ,  H04L7/005 ,  H04L25/05

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130322572A1

公开(公告)日：2013-12-05

申请号：US13485778

申请日：2012-05-31

Applicant: Brian Green ,  Javier Elenes

Inventor： Brian Green ,  Javier Elenes

IPC: H04L27/00

CPC classification number: H04H40/18

Abstract: A radio tuner and corresponding method of operating are disclosed. A radio tuner includes a radio frequency (RF) unit, an analog-to-digital converter (ADC), and an asynchronous sample rate converter (ASRC). The RF unit is configured to receive a radio signal and output a corresponding analog signal. The ADC is configured to generate a digital data stream, output at a first sample rate, based on the analog signal. The ASRC is coupled to receive the digital data stream and configured to output the digital data stream at a second sample rate for output do a demodulator. The demodulator may in turn be coupled to provide a feedback signal to the ASRC. TheASRC may adjust the second sample rate in accordance with the feedback signal. The RF unit, the ADC, and the ASRC may be implemented on a single integrated circuit (IC).

Abstract translation: 公开了一种无线电调谐器和相应的操作方法。 无线电调谐器包括射频（RF）单元，模数转换器（ADC）和异步采样率转换器（ASRC）。 RF单元被配置为接收无线电信号并输出​​相应的模拟信号。 ADC被配置为基于模拟信号生成以第一采样率输出的数字数据流。 ASRC耦合以接收数字数据流并且被配置为以第二采样率输出数字数据流，以输出解调器。 解调器可以依次耦合以向ASRC提供反馈信号。 ASRC可以根据反馈信号调整第二采样率。 RF单元，ADC和ASRC可以在单个集成电路（IC）上实现。