公开(公告)号：EP3238353A1

公开(公告)日：2017-11-01

申请号：EP15874296.5

申请日：2015-12-22

Applicant: Ibiquity Digital Corporation

Inventor： MILBAR, Marek ,  EL-DINARY, Ashruf S. ,  CARLOCK, Jason K. ,  JURY, Jeffrey ,  DETWEILER, Jeffrey R. ,  TENNISWOOD, Timothy L. ,  DERIDDER, James

IPC: H04H20/86

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: 描述了用于在数字无线电广播接收机系统处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一部分数据。 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部分的重复数据。 在数字无线电广播接收机处通过除了数字无线电广播之外的其他无线通信在包含错误的数据部分接收复制数据。 处理重复数据以提供不间断的内容呈现。

公开(公告)号：EP2777177A1

公开(公告)日：2014-09-17

申请号：EP12787606.8

申请日：2012-11-01

Applicant: Ibiquity Digital Corporation

Inventor： KROEGER, Brian ,  PEYLA, Paul J. ,  BAIRD, Jeffrey S.

IPC: H04B7/08

CPC classification number: H04B7/0857 ,  H04B7/0845 ,  H04B7/0885 ,  H04H2201/18

Abstract: A radio receiver includes a first signal path including a first tuner configured to receive a first signal from a first antenna, and a first demodulator configured to demodulate symbols from an output of the first tuner to produce first branch metrics derived from the demodulated symbols; a second signal path including a second tuner configured to receive a second signal from a second antenna, and a second demodulator configured to demodulate symbols from an output of the second tuner to produce second branch metrics derived from the demodulated symbols; a combiner for maximum ratio combining the first branch metrics and the second branch metrics; and processing circuitry to process the combined first and second branch metrics to produce an output signal.

Abstract translation: 无线电接收机包括第一信号路径，包括被配置为从第一天线接收第一信号的第一调谐器，以及第一解调器，被配置为从第一调谐器的输出解调符号以产生从解调符号导出的第一分支度量; 第二信号路径，包括被配置为从第二天线接收第二信号的第二调谐器，以及第二解调器，被配置为从所述第二调谐器的输出解调符号，以产生从所述解调符号导出的第二分支度量; 组合第一分支度量和第二分支度量的最大比率的组合器; 以及处理电路，用于处理组合的第一和第二分支度量以产生输出信号。

公开(公告)号：EP3353915A1

公开(公告)日：2018-08-01

申请号：EP16770395.8

申请日：2016-09-06

Applicant: Ibiquity Digital Corporation

Inventor： VINCELETTE, Scott

IPC: 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：EP1959577A1

公开(公告)日：2008-08-20

申请号：EP06833618.9

申请日：2006-11-29

Applicant: Pioneer Corporation

Inventor： YAMAMOTO, Yuji

IPC: H04B1/16

CPC classification number: H04B1/1027 ,  H03D3/006 ,  H04H20/30 ,  H04H40/18 ,  H04H2201/18 ,  H04L1/0036 ,  H04L1/004 ,  H04L1/203 ,  H04L1/22 ,  H04L5/0005 ,  H04L27/0002 ,  H04L27/2647

Abstract: An object is to demodulate analog modulated and digitally modulated waves, and automatically switch to demodulate the digital modulated wave component when the reception quality becomes good while the analog modulated wave component is being demodulated.
IF filters (1, 2) extract the analog modulated wave component and the digital modulated wave component from a modulated wave signal (Sin). The extracted components are frequency shifted at a frequency shifter section (3) and combined at a combining section (4) into a combined modulated wave signal (Shdaa), which is in turn converted at an analog-to-digital converter (5) to combined modulated wave data (Dhdaa). A band-pass filter (6) extracts data (Dd) corresponding to the digital modulated wave component from the combined modulated wave data (Dhdaa), so that a digital broadcast demodulation section (8) demodulates the data (Dd). A band-pass filter (7) extracts data (Da) corresponding to the analog modulated wave component from the combined modulated wave data (Dhdaa), so that an analog broadcast demodulation section (9) demodulates the data (Da). In accordance with an error sense signal (ERR) detected at the digital broadcast demodulation section (8), a reception quality decision section (10) determines whether or not the reception quality is good. When the reception quality is good, a digital broadcast demodulated data (DMd) is output via a switching section (11), whereas when the reception quality has degraded, an analog broadcast demodulated data (DMa) is output via the switching section (11).

Abstract translation: 目的是解调模拟调制和数字调制波，并且当模拟调制波分量被解调时，当接收质量变好时，自动切换到解调数字调制波分量。 IF滤波器（1,2）从调制波信号（Sin）提取模拟调制波分量和数字调制波分量。 所提取的分量在移频器部分（3）处被频移，并在组合部分（4）处组合成组合的调制波信号（Shdaa），后者又在模数转换器（5）转换成 组合调制波数据（Dhdaa）。 带通滤波器（6）从组合调制波数据（Dhdaa）中提取与数字调制波分量相对应的数据（Dd），从而数字广播解调部分（8）解调数据（Dd）。 带通滤波器（7）从组合调制波数据（Dhdaa）中提取与模拟调制波分量相对应的数据（Da），从而模拟广播解调部分（9）解调数据（Da）。 根据在数字广播解调部分（8）检测到的错误检测信号（ERR），接收质量判定部分（10）确定接收质量是否良好。 当接收质量好时，通过切换部分（11）输出数字广播解调数据（DMd），而当接收质量下降时，经由切换部分（11）输出模拟广播解调数据（DMa） 。

公开(公告)号：EP2974102A2

公开(公告)日：2016-01-20

申请号：EP14723548.5

申请日：2014-03-13

Applicant: Ibiquity Digital Corporation

Inventor： KROEGER, Brian W. ,  PEYLA, Paul J.

IPC: H04L1/00 ,  H04H20/30 ,  H04L1/04 ,  H04L5/00 ,  H03M13/25 ,  H04L1/08

CPC classification number: H03M13/1105 ,  G06F11/10 ,  H03M13/1102 ,  H03M13/1154 ,  H03M13/1515 ,  H03M13/255 ,  H03M13/2906 ,  H03M13/31 ,  H03M13/63 ,  H03M13/6362 ,  H04H20/30 ,  H04H2201/18 ,  H04L1/0013 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0063 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/08 ,  H04L5/0044 ,  H04L27/2697 ,  H04L2001/0093

Abstract: A method of transmitting digital information includes: receiving a plurality of information bits representing audio information and/or data; encoding the information bits using complementary low density parity check coding to produce a composite codeword and a plurality of independently decodable semi-codewords; modulating at least one carrier signal with the forward error corrected bits; and transmitting the carrier signal(s). Transmitters that implement the method, and receivers that receive signals produced by the method, are also provided.

公开(公告)号：EP1959577A4

公开(公告)日：2010-08-04

申请号：EP06833618

申请日：2006-11-29

Applicant: PIONEER CORP

Inventor： YAMAMOTO YUJI

IPC: H04L1/22

CPC classification number: H04B1/1027 ,  H03D3/006 ,  H04H20/30 ,  H04H40/18 ,  H04H2201/18 ,  H04L1/0036 ,  H04L1/004 ,  H04L1/203 ,  H04L1/22 ,  H04L5/0005 ,  H04L27/0002 ,  H04L27/2647

公开(公告)号：EP3391562A1

公开(公告)日：2018-10-24

申请号：EP16843241.7

申请日：2016-12-16

Applicant: Ibiquity Digital Corporation

Inventor： OLOCHWOSZCZ, Gabriel S. ,  PAHUJA, Ashwini ,  VINCELETTE, Scott

IPC: H04H20/22 ,  H04H60/12 ,  H04H20/26

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：EP3332495A1

公开(公告)日：2018-06-13

申请号：EP16759894.5

申请日：2016-07-25

Applicant: Ibiquity Digital Corporation

Inventor： NEKHAMKIN, Michael ,  CHEN, Hangjun ,  LI, Linlin

IPC: H04H20/30 ,  H04H60/11 ,  H04H40/18

CPC classification number: H04L7/0041 ,  H04B1/16 ,  H04H20/30 ,  H04H40/18 ,  H04H60/11 ,  H04H2201/18 ,  H04L7/0029 ,  H04L7/0079 ,  H04L12/18 ,  H04L27/2647 ,  H04L27/2662 ,  H04W56/005

Abstract: A method of processing a digital radio broadcast signal in a digital radio receiver includes: receiving baseband signal samples at a first sample rate; adjusting the sample rate of the baseband signals based on a difference between a receiver clock and a transmitter clock to produce adjusted baseband signal samples at a second sample rate; filtering the adjusted baseband signal samples to separate a digital component of the samples and an analog component of the samples, wherein the digital component and the analog component are synchronous; and separately demodulating the digital component and the analog component to produce a digital output signal and an analog output signal. A receiver that uses the method is also provided.

公开(公告)号：JP2013187808A

公开(公告)日：2013-09-19

申请号：JP2012052838

申请日：2012-03-09

Applicant: Clarion Co Ltd ,  クラリオン株式会社

Inventor： ISHIDA MASAKI

IPC: H04B1/16 ,  H04H20/30 ,  H04H60/13 ,  H04H60/25 ,  H04H60/27

CPC classification number: H04H2201/18

Abstract: PROBLEM TO BE SOLVED: To provide a broadcasting receiver capable of displaying additional information on a frequency channel to be displayed without delay after channel restoration, by requiring no reacquisition of the additional information.SOLUTION: A broadcasting receiver comprises: reception means for receiving a digital broadcasting signal obtained by multiplexing additional information; storage means for storing the received additional information in a predetermined storage medium; determination means for determining whether or not there is possibility of using additional information already stored in the predetermined storage medium on the basis of additional information received in the past, when storing newly received additional information in the predetermined medium is to make overflow of storage capacity of the storage medium; and deletion means for securing storage capacity for storing the newly received additional information, by deleting additional information which it is determining by the determination means that there is no possibility of using.

Abstract translation: 要解决的问题：提供一种广播接收机，其能够在频道恢复后无延迟地显示频道上的附加信息，不需要重新获取附加信息。解决方案：广播接收机包括：接收装置，用于接收数字 通过复用附加信息获得的广播信号; 存储装置，用于将所接收的附加信息存储在预定的存储介质中; 确定装置，用于基于在过去接收到的附加信息来确定是否存在已经存储在预定存储介质中的附加信息的可能性，当将新接收到的附加信息存储在预定介质中时，使存储容量溢出 存储介质; 以及删除装置，用于通过删除由确定装置确定的不存在使用可能性的附加信息来确保用于存储新接收的附加信息的存储容量。

公开(公告)号：WO2016126674A1

公开(公告)日：2016-08-11

申请号：PCT/US2016/016122

申请日：2016-02-02

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： MILBAR, Marek

IPC: H04H60/07

CPC classification number: H04L25/0228 ,  H04B1/126 ,  H04H20/33 ,  H04H60/07 ,  H04H2201/18 ,  H04L5/0048 ,  H04L27/22

Abstract: Enhanced digital broadcast signals are transmitted on a digital radio broadcast signal by allocating spectral resources of the digital radio broadcast signal to simultaneously serve existing receivers (which can decode default content but not new content from the enhanced digital broadcast signal) and new receivers (which can decode default content and can decode new digital content from the enhanced digital broadcast signal) by modulating a first plurality of reference subcarriers with a first signal constellation, and modulating a second plurality of reference subcarriers with a second modified signal constellation such that a receiver processes the digital radio broadcast signal to produce a first coherent reference signal estimate for the first plurality of reference subcarriers to extract the default content for playback and to produce a second coherent reference signal estimate for the second plurality of reference subcarriers to disregard the new content.

Abstract translation: 增强的数字广播信号通过分配数字无线电广播信号的频谱资源以同时提供现有的接收机（其可以解码默认内容，但不能从增强的数字广播信号解码新的内容）和新的接收机（可以 解码默认内容并且可以从增强型数字广播信号解码新的数字内容），通过用第一信号星座调制第一多个参考子载波，以及用第二修改信号星座调制第二多个参考子载波，使得接收机处理 数字无线电广播信号，以产生第一多个参考子载波的第一相干参考信号估计，以提取用于重放的默认内容，并产生第二多个参考子载波的第二相干参考信号估计，以忽视新内容。