公开(公告)号：US09350471B1

公开(公告)日：2016-05-24

申请号：US14064971

申请日：2013-10-28

Applicant: iBiquity Digital Corporation

Inventor： Joseph P Haggerty ,  Chinmay M Shah ,  Marek Milbar ,  James C Stekas

IPC: H04H20/00 ,  G06F9/54

CPC classification number: H04H20/00 ,  G06F9/546 ,  H04H2201/18 ,  H04W4/06 ,  H04W4/18

Abstract: Methods and systems for transmitting and receiving large objects via digital radio broadcast involve retrieving an object and an object description; assigning a unique identifier to the object; segmenting the object into a plurality of fragments; generating at least one long message having selected ones of the fragments and a long header including the unique identifier and the object description; generating at least one short message having selected ones of the fragments and a short header including the unique identifier; and communicating the at least the long message or the short message to a digital radio broadcast transmitter. In accordance with certain embodiments, reassembly of the object can begin with either a long message or a short message.

公开(公告)号：US20150381297A1

公开(公告)日：2015-12-31

申请号：US14317673

申请日：2014-06-27

Applicant: GM Global Technology Operations LLC

Inventor： Lawrence D. Cepuran ,  William J. Clifford

IPC: H04H60/14 ,  H04H40/18 ,  H04H20/71 ,  H04B1/16

CPC classification number: H04H60/15 ,  H04H40/18 ,  H04H60/13 ,  H04H2201/18

Abstract: A system and method of controlling a digital radio broadcast receiver in a vehicle includes: detecting an instruction to activate the digital radio broadcast receiver; accessing a software application at the vehicle in response to the instruction; and activating the digital radio broadcast receiver in the vehicle at the direction of the software application.

Abstract translation: 一种控制车辆中数字无线电广播接收机的系统和方法，包括：检测激活数字无线电广播接收机的指令; 响应于指令访问车辆上的软件应用程序; 以及在软件应用的方向上激活车辆中的数字无线电广播接收机。

公开(公告)号：US20140342682A1

公开(公告)日：2014-11-20

申请号：US14296578

申请日：2014-06-05

Applicant: iBiquity Digital Corporation

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

IPC: H04B7/08

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

Abstract: A method for processing a radio signal includes: receiving a signal on two antennas; demodulating the signal using first and second independent signal paths that are synchronized by symbol number; maximum ratio combining branch metrics from the two receiver paths; and using the combined branch metrics to produce an output, wherein the receiver paths include an arbitration scheme. A receiver that implements the method is also provided.

Abstract translation: 一种处理无线电信号的方法包括：在两个天线上接收信号; 使用由符号号同步的第一和第二独立信号路径来解调信号; 组合来自两个接收器路径的分支度量的最大比率; 以及使用所述组合分支度量来产生输出，其中所述接收器路径包括仲裁方案。 还提供了一种实现该方法的接收器。

公开(公告)号：US20140281833A1

公开(公告)日：2014-09-18

申请号：US13835011

申请日：2013-03-15

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： Brian W. Kroeger ,  Paul J. Peyla

IPC: H03M13/11

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.

Abstract translation: 一种发送数字信息的方法包括：接收表示音频信息和/或数据的多个信息比特; 使用互补低密度奇偶校验编码来对信息比特进行编码以产生复合码字和多个可独立解码的半码字; 用前向纠错比特调制至少一个载波信号; 并发送载波信号。 还提供了实现该方法的发射机和接收由该方法产生的信号的接收机。

公开(公告)号：US20140270252A1

公开(公告)日：2014-09-18

申请号：US13844096

申请日：2013-03-15

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： Ashwini Pahuja ,  Weifeng Mu

IPC: H03G11/08

CPC classification number: G10L19/005 ,  G10L21/0208 ,  H04H2201/18

Abstract: A method and apparatus are provided for processing a received digital radio broadcast signal to efficiently remove signal interference artifacts from digital and/or analog signals by using signal quality information extracted from audio samples in one or more buffered audio frames to detect audio frames containing clipped noise artifacts and weaker noise artifacts and to selectively apply anti-interference processing to remove the signal interference artifacts.

Abstract translation: 提供了一种用于处理接收到的数字无线电广播信号的方法和装置，以通过使用从一个或多个缓冲音频帧中的音频样本提取的信号质量信息来有效地消除来自数字和/或模拟信号的信号干扰伪影，以检测包含剪切噪声的音频帧 伪影和较弱的噪声伪像，并选择性地应用抗干扰处理以去除信号干扰伪像。

公开(公告)号：US20140270006A1

公开(公告)日：2014-09-18

申请号：US13836417

申请日：2013-03-15

Applicant: Dongsheng Bi ,  Binuraj K. Ravindran

Inventor： Dongsheng Bi ,  Binuraj K. Ravindran

IPC: H04H20/59 ,  H04H20/33 ,  H04H20/31

CPC classification number: H04H20/59 ,  H04H20/31 ,  H04H20/33 ,  H04H20/426 ,  H04H2201/18

Abstract: A method and system for offline processing alert messages (AR) on a digital radio broadcast receiver is described. A digital radio broadcast signal is received at the digital radio broadcast receiver. AR receivers will constantly look for AR alerts at a periodic interval by monitoring the station information service (SIS) on Primary IBOC Data Service (PIDS) channel to maximize the battery life at the same time achieving a reasonable latency in receiving AR alerts.

Abstract translation: 描述了一种用于数字无线电广播接收机上的离线处理警报消息（AR）的方法和系统。 在数字无线电广播接收机处接收数字无线电广播信号。 AR接收器将通过监视主IBOC数据服务（PIDS）通道上的站信息服务（SIS）来定期寻找AR警报，以最大限度地延长电池寿命，同时在接收AR警报时达到合理的延迟。

公开(公告)号：US08774328B2

公开(公告)日：2014-07-08

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: H03D1/00

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：US20130343576A1

公开(公告)日：2013-12-26

申请号：US13533548

申请日：2012-06-26

Applicant: Ashwini Pahuja

Inventor： Ashwini Pahuja

IPC: H04B1/00

CPC classification number: H04H40/36 ,  H04H2201/18

Abstract: A method and apparatus are provided for blending analog and digital portions of a composite digital audio broadcast signal by using look ahead metrics computed from previously received audio frames to guide the blending process and prevent unnecessary blending back and forth between analog and digital if the look ahead metrics indicate that future digital signal quality is degraded or impaired.

Abstract translation: 提供了一种方法和装置，用于通过使用从先前接收到的音频帧计算出的前瞻度量来混合复合数字音频广播信号的模拟和数字部分，以指导混合处理并且防止在模拟和数字之间前后的不必要的混合 指标表明未来的数字信号质量下降或受损。

公开(公告)号：US08526897B2

公开(公告)日：2013-09-03

申请号：US12938451

申请日：2010-11-03

Applicant: Matthew Henson

Inventor： Matthew Henson

IPC: H04B1/18

CPC classification number: H04W52/0229 ,  H04H2201/18 ,  Y02D70/00

Abstract: According to one aspect of the present invention, a controller is coupled to at least first and second signal processors (at least one of which includes analog demodulation circuitry and another of which includes digital demodulation circuitry). The controller may operate to disable the first signal processor responsive to a control signal that indicates that a second signal (corresponding to a demodulator output) is available from the second signal processor.

Abstract translation: 根据本发明的一个方面，控制器耦合到至少第一和第二信号处理器（其中至少一个包括模拟解调电路，另一个包括数字解调电路）。 控制器可以操作以响应于指示来自第二信号处理器的第二信号（对应于解调器输出）的控制信号来禁用第一信号处理器。

公开(公告)号：US08351843B2

公开(公告)日：2013-01-08

申请号：US11896565

申请日：2007-09-04

Applicant: Robert Michael Dillon ,  Harvey Chalmers ,  Thomas Joseph O'Brien ,  Gregory Nungester ,  Rodney Bernard Burke ,  Joseph F. D'Angelo

Inventor： Robert Michael Dillon ,  Harvey Chalmers ,  Thomas Joseph O'Brien ,  Gregory Nungester ,  Rodney Bernard Burke ,  Joseph F. D'Angelo

IPC: H04H20/71

CPC classification number: H04H20/71 ,  H04H20/28 ,  H04H20/93 ,  H04H60/27 ,  H04H60/33 ,  H04H60/74 ,  H04H60/82 ,  H04H2201/18

Abstract: A method for specifying content of interest using a digital radio broadcast receiver is described. A digital radio broadcast signal includes first audio content and first program data, wherein the first program data includes information identifying a first item, and includes second audio content and second program data, wherein the second program data includes information identifying a second item. A user command entered at a user interface during reception of audio content is registered, indicating a user's interest in either the first or second audio content. It is determined whether there is an ambiguity in the content of interest. If there is an ambiguity, a first data structure is stored for the first audio content, and a second data structure is stored for the second audio content. The first data structure includes the information identifying the first item, and the second data structure includes the information identifying the second item.