公开(公告)号：US20180068665A1

公开(公告)日：2018-03-08

申请号：US15706079

申请日：2017-09-15

Applicant: Sirius XM Radio Inc.

Inventor： Paul Marko ,  Deepen Sinha ,  Hariom Aggrawal

IPC: G10L19/008 ,  H04H60/58 ,  G10L19/00 ,  G10L19/02

CPC classification number: G10L19/008 ,  G10L19/00 ,  G10L19/0212 ,  G10L2019/0001 ,  H04H60/58 ,  H04H2201/18

Abstract: Systems and methods for increasing transmission bandwidth efficiency by the analysis and synthesis of the ultimate components of transmitted content are presented. To implement such a system, a dictionary or database of elemental codewords can be generated from a set of audio clips. Using such a database, a given arbitrary song or other audio file can be expressed as a series of such codewords, where each given codeword in the series is a compressed audio packet that can be used as is, or, for example, can be tagged to be modified to better match the corresponding portion of the original audio file. Each codeword in the database has an index number or unique identifier. For a relatively small number of bits used in a unique ID, e.g. 27-30, several hundreds of millions of codewords can be uniquely identified. By providing the database of codewords to receivers of a broadcast or content delivery system in advance, instead of broadcasting or streaming the actual compressed audio signal, all that need be transmitted is the series of identifiers along with any modification instructions to the identified codewords. After reception, intelligence on the receiver having access to a locally stored copy of the dictionary can reconstruct the original audio clip by accessing the codewords via the received IDs, modify them as instructed by the modification instructions, further modify the codewords either individually or in groups using the audio profile of the original audio file (also sent by the encoder) and play back a generated sequence of phase corrected codewords and modified codewords as instructed. In exemplary embodiments of the present invention, such modification can extend into neighboring codewords, and can utilize either or both (i) cross correlation based time alignment and (ii) phase continuity between harmonics, to achieve higher fidelity to the original audio clip.

公开(公告)号：US09842048B2

公开(公告)日：2017-12-12

申请号：US14939863

申请日：2015-11-12

Applicant: iBiquity Digital Corporation

Inventor： Marek Milbar

IPC: H04L27/06 ,  G06F12/06 ,  H03M13/27 ,  H03M13/00 ,  H04L27/26 ,  H04B1/06 ,  H04W52/02

CPC classification number: G06F12/0607 ,  G06F2212/1028 ,  G06F2212/154 ,  G06F2212/174 ,  H03M13/2707 ,  H03M13/2785 ,  H03M13/6569 ,  H04B1/06 ,  H04H2201/18 ,  H04L27/2601 ,  H04L27/2649 ,  H04W52/0206 ,  Y02D70/164

Abstract: A method of block deinterleaving data received at a digital radio broadcast receiver is described. The method includes providing a block of memory having a n×k addresses, wherein the block comprises a single table, receiving a digital radio broadcast signal at the receiver, and demodulating the digital radio broadcast signal into a plurality of interleaved data units. For at least one series of n×k data units a pointer step size is determined, and for each data unit in the series, an address in the block is calculated based on the pointer step size, and an output data unit is read from the block at the address, such that said output data units represent block deinterleaved data units. An input data unit from the plurality of interleaved data units is then written to the block at the address. Associated systems and computer readable storage media are presented.

公开(公告)号：US20170272143A1

公开(公告)日：2017-09-21

申请号：US15071389

申请日：2016-03-16

Applicant: iBiquity Digital Corporation

Inventor： Brian W. Kroeger ,  Paul J. Peyla ,  Jeffrey S. Baird

IPC: H04B7/08 ,  H04L1/00 ,  H04H40/18 ,  H04B1/10 ,  H04H20/22

CPC classification number: H04B7/0885 ,  H04B1/1027 ,  H04H20/22 ,  H04H20/30 ,  H04H40/18 ,  H04H60/11 ,  H04H60/12 ,  H04H2201/18 ,  H04L1/0045 ,  H04L1/0061 ,  H04L7/0054

Abstract: A method for processing a digital audio broadcast signal in a radio receiver includes: receiving a digital audio broadcast signal; demodulating the digital audio broadcast signal to produce an analog audio stream and a digital audio stream; determining a digital signal quality value for the digital audio stream; blending an output of the radio receiver from the analog audio stream to the digital audio stream when the digital signal quality value exceeds an adaptive analog-to-digital threshold value; and blending the output of the radio receiver from the digital audio stream to the analog audio stream when the digital signal quality value falls below an adaptive digital-to-analog threshold value, wherein the adaptive digital-to-analog threshold value is lower than the adaptive analog-to-digital threshold value.

公开(公告)号：US09768948B2

公开(公告)日：2017-09-19

申请号：US14862800

申请日：2015-09-23

Applicant: iBiquity Digital Corporation

Inventor： Scott Vincelette

IPC: H03K9/00 ,  H04L27/00 ,  H04L7/00 ,  G10L19/16 ,  H04B1/16 ,  H04H20/22 ,  H04H60/58

CPC classification number: H04L7/0079 ,  G10L19/167 ,  H04B1/16 ,  H04H20/22 ,  H04H60/58 ,  H04H2201/18 ,  H04L7/0016

Abstract: A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.

公开(公告)号：US20170179899A1

公开(公告)日：2017-06-22

申请号：US14974809

申请日：2015-12-18

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： Gabriel Olochwoszcz ,  Ashwini Pahuja ,  Scott Vincelette

IPC: H03G3/30 ,  H03G3/00 ,  G10L19/16

CPC classification number: H03G3/3005 ,  G10L19/167 ,  H03G3/002 ,  H04H20/22 ,  H04H20/26 ,  H04H20/47 ,  H04H40/36 ,  H04H2201/18

Abstract: A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.

公开(公告)号：US20170085363A1

公开(公告)日：2017-03-23

申请号：US14862800

申请日：2015-09-23

Applicant: iBiquity Digital Corporation

Inventor： Scott Vincelette

IPC: H04L7/00 ,  H04B1/16 ,  G10L19/16

CPC classification number: H04L7/0079 ,  G10L19/167 ,  H04B1/16 ,  H04H20/22 ,  H04H60/58 ,  H04H2201/18 ,  H04L7/0016

Abstract: A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.

公开(公告)号：US20170019215A1

公开(公告)日：2017-01-19

申请号：US15277481

申请日：2016-09-27

Applicant: iBiquity Digital Corporation

Inventor： Marek Milbar ,  Ashruf S. El-Dinary ,  Jason K. Carlock ,  Jeffrey Jury ,  Jeffrey R. Detweiler ,  Timothy L. Tenniswood ,  James DeRidder

IPC: H04L1/08 ,  H04L1/16 ,  H04H20/72

CPC classification number: H04L1/08 ,  H04H20/72 ,  H04H60/12 ,  H04H2201/18 ,  H04H2201/37 ,  H04L1/16 ,  H04L1/1671 ,  H04L1/1838 ,  H04L1/20 ,  H04L1/203 ,  H04L2001/0093

Abstract: Systems and methods are described for rendering content at a digital radio broadcast receiver system. A digital radio broadcast signal comprises data for rendering content at the digital radio broadcast receiver. The digital radio broadcast signal is processed to determine whether the data from the digital radio broadcast transmission contains a data error. A portion of the data containing the data error is identified. A download request is transmitted to a computing system, where the download request requests duplicate data for the portion of the data containing the data error. The duplicate data is received at the digital radio broadcast receiver for the portion of the data containing the error via other wireless communication other than the digital radio broadcast. The duplicate data is processed to provide an uninterrupted rendering of the content.

Abstract translation: 描述了在数字无线电广播接收机系统中呈现内容的系统和方法。 数字无线电广播信号包括用于在数字无线电广播接收机处呈现内容的数据。 处理数字无线电广播信号以确定来自数字无线电广播传输的数据是否包含数据错误。 识别包含数据错误的数据的一部分。 将下载请求发送到计算系统，其中下载请求请求包含数据错误的数据的部分的重复数据。 通过数字无线电广播以外的其他无线通信，在数字无线电广播接收机处接收包含错误数据的部分的重复数据。 处理重复数据以提供内容的不间断呈现。

公开(公告)号：US09544039B2

公开(公告)日：2017-01-10

申请号：US14920684

申请日：2015-10-22

Applicant: iBiquity Digital Corporation

Inventor： Brian W. Kroeger ,  Paul J. Peyla

IPC: H04B7/08 ,  H04L1/20 ,  H04L27/26 ,  H04B7/02 ,  H04B17/29 ,  H04B17/309

CPC classification number: H04B7/0814 ,  H04B7/02 ,  H04B7/0805 ,  H04B17/29 ,  H04B17/309 ,  H04H2201/12 ,  H04H2201/18 ,  H04H2201/19 ,  H04H2201/20 ,  H04L1/20 ,  H04L27/2663 ,  H04L27/2678

Abstract: A method for detecting the digital quality of a radio signal includes: receiving a radio signal including an analog modulated portion; digitally sampling an analog modulated portion of the radio signal to produce a plurality of samples; using a ratio between an average magnitude and an RMS magnitude of a block of the samples to compute an analog signal quality metric. Receivers that implement the method are also provided.

Abstract translation: 用于检测无线电信号的数字质量的方法包括：接收包括模拟调制部分的无线电信号; 对无线电信号的模拟调制部分进行数字采样以产生多个采样; 使用样本块的平均幅度和RMS幅度之间的比率来计算模拟信号质量度量。 还提供了实现该方法的接收器。

公开(公告)号：US09467255B2

公开(公告)日：2016-10-11

申请号：US14580920

申请日：2014-12-23

Applicant: iBiquity Digital Corporation

Inventor： Marek Milbar ,  Ashruf S. El-Dinary ,  Jason K. Carlock ,  Jeffrey Jury ,  Jeffrey R. Detweiler ,  Timothy L. Tenniswood ,  James DeRidder

IPC: H04L1/00 ,  H04L1/08 ,  H04H20/72

CPC classification number: H04L1/08 ,  H04H20/72 ,  H04H60/12 ,  H04H2201/18 ,  H04H2201/37 ,  H04L1/16 ,  H04L1/1671 ,  H04L1/1838 ,  H04L1/20 ,  H04L1/203 ,  H04L2001/0093

Abstract: Systems and methods are described for rendering content at a digital radio broadcast receiver system. A digital radio broadcast signal comprises data for rendering content at the digital radio broadcast receiver. The digital radio broadcast signal is processed to determine whether the data from the digital radio broadcast transmission contains a data error. A portion of the data containing the data error is identified. A download request is transmitted to a computing system, where the download request requests duplicate data for the portion of the data containing the data error. The duplicate data is received at the digital radio broadcast receiver for the portion of the data containing the error via other wireless communication other than the digital radio broadcast. The duplicate data is processed to provide an uninterrupted rendering of the content.

Abstract translation: 描述了在数字无线电广播接收机系统中呈现内容的系统和方法。 数字无线电广播信号包括用于在数字无线电广播接收机处呈现内容的数据。 处理数字无线电广播信号以确定来自数字无线电广播传输的数据是否包含数据错误。 识别包含数据错误的数据的一部分。 将下载请求发送到计算系统，其中下载请求请求包含数据错误的数据的部分的重复数据。 通过数字无线电广播以外的其他无线通信，在数字无线电广播接收机处接收包含错误数据的部分的重复数据。 处理重复数据以提供内容的不间断呈现。

公开(公告)号：US09407383B2

公开(公告)日：2016-08-02

申请号：US14581291

申请日：2014-12-23

Applicant: iBiquity Digital Corporation

Inventor： Marek Milbar ,  Ashruf El-Dinary ,  Jeffrey R. Detweiler

IPC: H04H20/71 ,  H04H20/72

CPC classification number: H04H20/72 ,  H04H20/06 ,  H04H2201/18

Abstract: A translator includes: an input configured to receive a bit stream having a plurality of digitally encoded contents and control information; processing circuitry configured to select one of the digitally encoded contents, to use the selected digitally encoded content to produce an analog modulated signal, to use the digitally encoded contents to produce a digitally modulated signal, and to combine the analog modulated signal and the digitally modulated signal to produce a hybrid signal; and an output configured to output the hybrid signal. A method performed by the radio signal translator is also provided.

Abstract translation: 翻译器包括：被配置为接收具有多个数字编码内容和控制信息的比特流的输入; 处理电路，被配置为选择所述数字编码内容之一，以使用所选择的数字编码内容来产生模拟调制信号，以使用所述数字编码内容来产生数字调制信号，并且将所述模拟调制信号和所述数字调制信号 信号产生混合信号; 以及被配置为输出混合信号的输出。 还提供了由无线电信号转换器执行的方法。