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：US20130003894A1

公开(公告)日：2013-01-03

申请号：US13172260

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： H04L27/00

CPC分类号： H04H60/12 ,  H04L5/0007 ,  H04L27/2662

摘要： 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.

摘要翻译： 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：US08976969B2

公开(公告)日：2015-03-10

申请号：US13172208

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： H04L27/00 ,  H04H40/18

CPC分类号： H04H40/18 ,  H04H2201/18

摘要： 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.

摘要翻译： 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：US08804865B2

公开(公告)日：2014-08-12

申请号：US13172260

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

CPC分类号： H04H60/12 ,  H04L5/0007 ,  H04L27/2662

摘要： 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.

摘要翻译： 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：US20130003904A1

公开(公告)日：2013-01-03

申请号：US13172290

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： H04B1/10

CPC分类号： H04H40/18 ,  H04H2201/18

摘要： 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.

摘要翻译： 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

申请人： Javier Elenes ,  Dana Taipale ,  Dave Anderton

发明人： Javier Elenes ,  Dana Taipale ,  Dave Anderton

IPC分类号： H04L27/00

CPC分类号： H04H40/18 ,  H04H2201/18

摘要： 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.

摘要翻译： 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：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：US20070211830A1

公开(公告)日：2007-09-13

申请号：US11374577

申请日：2006-03-13

申请人： Javier Elenes ,  Dana Taipale

发明人： Javier Elenes ,  Dana Taipale

IPC分类号： H04L27/00 ,  H04L27/22

CPC分类号： H03D3/002 ,  H03D3/006

摘要： 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.

摘要翻译： 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：US20080287072A1

公开(公告)日：2008-11-20

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： H04B1/38 ,  H03D7/16 ,  H04B1/10

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：US07436252B2

公开(公告)日：2008-10-14

申请号：US11529076

申请日：2006-09-28

申请人： Dana Taipale ,  Javier Elenes

发明人： Dana Taipale ,  Javier Elenes

IPC分类号： H03D1/00

CPC分类号： H03D1/2245

摘要： 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.

摘要翻译： 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。