公开(公告)号：US20130084818A1

公开(公告)日：2013-04-04

申请号：US13249508

申请日：2011-09-30

Applicant: Russell Croman ,  Christopher S. Gregg ,  Dan B. Kasha ,  Michael R. May ,  John Khoury ,  Javier Elenes

Inventor： Russell Croman ,  Christopher S. Gregg ,  Dan B. Kasha ,  Michael R. May ,  John Khoury ,  Javier Elenes

IPC: H04W24/00 ,  H04W88/00

CPC classification number: H04W52/0238 ,  H04B1/06 ,  H04W52/0245 ,  Y02D70/40

Abstract: In one embodiment, a method includes receiving and processing an incoming radio frequency (RF) signal in a receiver. Based on this signal, an environmental noise level can be determined, where this level corresponds to environmental noise present in an environment in which the receiver is located. Then, if the environmental noise level is substantially greater than receiver-generated noise, power consumption of at least one analog front end component of the receiver can be reduced.

Abstract translation: 在一个实施例中，一种方法包括在接收机中接收和处理输入射频（RF）信号。 基于该信号，可以确定环境噪声电平，其中该电平对应于存在于接收器所处的环境中的环境噪声。 然后，如果环境噪声电平显着大于接收器产生的噪声，则可以减少接收机的至少一个模拟前端部件的功耗。

公开(公告)号：US20130007082A1

公开(公告)日：2013-01-03

申请号：US13173365

申请日：2011-06-30

Applicant: Javier Elenes

Inventor： Javier Elenes

IPC: G06F17/10 ,  H03M3/02

CPC classification number: H04B1/0021 ,  H03M3/344 ,  H03M3/462 ,  H04B1/001

Abstract: 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.

Abstract translation: 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：US20110158357A1

公开(公告)日：2011-06-30

申请号：US12649761

申请日：2009-12-30

Applicant: Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes

Inventor： Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes

IPC: H04L27/06

CPC classification number: H04B1/0028 ,  H04J3/0685

Abstract: In an embodiment, 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 is to synchronize 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 configured to perform a selected antenna diversity operation on the first and second DSP frames to produce an output signal.

Abstract translation: 在一个实施例中，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。 数字信号处理器将基于帧符号开始和数字信号处理器偏移来同步第一DSP帧与第二DSP帧，数字信号处理器被配置为在第一和第二DSP帧上执行所选择的天线分集操作， 产生输出信号。

公开(公告)号：US20110158298A1

公开(公告)日：2011-06-30

申请号：US12649911

申请日：2009-12-30

Applicant: Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes ,  Gerald Champagne ,  Michael Robert May

Inventor： Younes Djadi ,  Russell Croman ,  Scott Thomas Haban ,  Javier Elenes ,  Gerald Champagne ,  Michael Robert May

IPC: H04B1/38 ,  H04L27/00

CPC classification number: H04B1/38

Abstract: A tuner circuit includes a digital signal processor to generate a digital data stream related to a radio frequency signal and a transceiver circuit coupled to the digital signal processor and configurable to generate an inter-chip communication frame having a start portion and a plurality of channels. The plurality of channels includes a first data channel to carry a portion of the digital data stream and a control channel to carry control data. The transceiver circuit is configurable to send the inter-chip communication frame to an additional tuner circuit through an inter-chip communication link.

Abstract translation: 调谐器电路包括数字信号处理器，用于产生与射频信号相关的数字数据流，以及耦合到数字信号处理器的收发器电路，并且可配置为产生具有起始部分和多个通道的芯片间通信帧。 多个信道包括携带数字数据流的一部分的第一数据信道和用于携带控制数据的控制信道。 收发器电路可配置为通过芯片间通信链路将片间通信帧发送到附加的调谐器电路。

公开(公告)号：US20080287072A1

公开(公告)日：2008-11-20

申请号：US11803892

申请日：2007-05-16

Applicant: Javier Elenes ,  Dana Taipale

Inventor： Javier Elenes ,  Dana Taipale

IPC: H04B1/38 ,  H03D7/16 ,  H04B1/10

CPC classification number: H03J1/0075

Abstract: 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.

Abstract translation: 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：US07436252B2

公开(公告)日：2008-10-14

申请号：US11529076

申请日：2006-09-28

Applicant: Dana Taipale ,  Javier Elenes

Inventor： Dana Taipale ,  Javier Elenes

IPC: H03D1/00

CPC classification number: H03D1/2245

Abstract: In one aspect, the present invention includes a method for receiving an amplitude modulation (AM) signal in a receiver and performing a coordinate rotation digital computer (CORDIC) operation in obtaining a demodulated AM signal. The demodulated AM signal may be obtained from a magnitude output of the CORDIC operation or as a real output of a multiplication between a complex baseband signal and a demodulating carrier signal generated in a feedback loop.

Abstract translation: 一方面，本发明包括一种在接收机中接收幅度调制（AM）信号并且在获得解调的AM信号中执行坐标旋转数字计算机（CORDIC）操作的方法。 解调的AM信号可以从CORDIC操作的幅度输出中获得，或者作为在反馈回路中产生的复基带信号和解调载波信号之间的乘法的实际输出。

公开(公告)号：US08804865B2

公开(公告)日：2014-08-12

申请号：US13172260

申请日：2011-06-29

Applicant: Javier Elenes ,  Dana Taipale ,  Dave Anderton

Inventor： Javier Elenes ,  Dana Taipale ,  Dave Anderton

IPC: H04B7/02 ,  H04B1/10 ,  H04L1/00 ,  H04H60/12 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04H60/12 ,  H04L5/0007 ,  H04L27/2662

Abstract: A method and apparatus for adjusting the delay of a first data stream relative to a second data stream is disclosed. An apparatus receives first and second data streams having identical content. A timing difference between the first and second data streams is estimated. At least the leading one of the data streams is applied to a sample rate converter. The sample rate converter is configured to receive a data stream at an input sampling rate and to output the data stream at an output sampling rate. Based on the estimated timing difference, delay is applied to the leading one of the data streams by changing the sampling rate of the sampling rate converter. The output sampling rate of the sampling rate converter may be adjusted until both data streams are aligned in time.

Abstract translation: 公开了一种用于调整第一数据流相对于第二数据流的延迟的方法和装置。 一种装置接收具有相同内容的第一和第二数据流。 估计第一和第二数据流之间的定时差。 至少将前导数据流应用于采样率转换器。 采样率转换器被配置为以输入采样率接收数据流，并以输出采样率输出数据流。 基于估计的定时差，通过改变采样率转换器的采样率，将延迟应用于数据流中的一个。 可以调整采样率转换器的输出采样率，直到两个数据流在时间上对准。

公开(公告)号：US08417206B2

公开(公告)日：2013-04-09

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: H04B1/30

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：US20130003904A1

公开(公告)日：2013-01-03

申请号：US13172290

申请日：2011-06-29

Applicant: Javier Elenes ,  Dana Taipale ,  Dave Anderton

Inventor： Javier Elenes ,  Dana Taipale ,  Dave Anderton

IPC: H04B1/10

CPC classification number: H04H40/18 ,  H04H2201/18

Abstract: A delay estimation unit is disclosed. The delay estimation unit may receive first and second streams of data having identical content. The amount of data in the data streams is reduced by filtering (e.g., lowpass filtering) the first and second data streams to produce first and second filtered streams, respectively. The amount of data is further reduced by decimating the first and second filtered streams, discarding all but one of every N samples to produce first and second decimated data, respectively. The first and second decimated streams are received by a correlator that performs a correlation operation. The output of the correlator is received by a peak search unit that analyzes the correlation results over time and searches for peaks that indicate alignment of the first and second data streams.

Abstract translation: 公开了一种延迟估计单元。 延迟估计单元可以接收具有相同内容的第一和第二数据流。 通过对第一和第二数据流进行滤波（例如，低通滤波）来分别产生第一和第二滤波数据流来减少数据流中的数据量。 通过抽取第一和第二滤波流来进一步减少数据量，丢弃每N个采样中的除了一个以外的所有样本以产生第一和第二抽取数据。 第一和第二抽取流由执行相关操作的相关器接收。 相关器的输出由峰值搜索单元接收，峰值搜索单元分析随时间的相关结果，并搜索指示第一和第二数据流对齐的峰值。

公开(公告)号：US20130003801A1

公开(公告)日：2013-01-03

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

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。