公开(公告)号：US08976969B2

公开(公告)日：2015-03-10

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 ,  H04H40/18

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。

公开(公告)号：US20140281835A1

公开(公告)日：2014-09-18

申请号：US13843956

申请日：2013-03-15

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： Marek Milbar

IPC: H04L1/00

CPC classification number: H04L1/0045 ,  H03M13/09 ,  H03M13/333 ,  H04H60/11 ,  H04H2201/18 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/04 ,  H04L2001/0093

Abstract: A method and apparatus are provided for recovering audio packet location fields and/or frame boundary information from a received digital radio broadcast signal frame in which there are detected errors in the signal frame header by using selected header elements and/or protocol data unit (PDU) structured data block parameters relating to minimum, maximum, and average packet length or PDU length in a scalable recovery process that may be throttled dynamically or configured statically based on available computation resources within a specific implementation and/or at a specific time.

Abstract translation: 提供了一种方法和装置，用于从接收到的数字无线电广播信号帧中恢复音频分组位置字段和/或帧边界信息，其中通过使用选择的报头元素和/或协议数据单元（PDU）来检测信号帧报头中的错误 ）可扩展恢复过程中与最小，最大和平均分组长度或PDU长度有关的结构化数据块参数，其可以基于特定实现中的可用计算资源和/或在特定时间静态地限制。

公开(公告)号：US20140012570A1

公开(公告)日：2014-01-09

申请号：US13977640

申请日：2012-03-30

Applicant: Dongsheng Bi ,  Bomiraj Ravindran ,  Bassel Haddad

Inventor： Dongsheng Bi ,  Bomiraj Ravindran ,  Bassel Haddad

IPC: G10L19/16

CPC classification number: G10L19/167 ,  H04H20/426 ,  H04H2201/18 ,  H04N7/24 ,  H04N21/4382 ,  H04N21/4435 ,  H04N2007/246

Abstract: Described herein are systems, methods and apparatus for decoding in-band on-channel signals and extracting audio and data signals. Memory requirements are reduced by selectively filtering a bit stream of data in the signal so that services of interest which are encoded therein are processed. A single pool of memory may be shared between physical layer and data link layer processing. Memory in this pool may be allocated dynamically between processing of data at the physical and data link layers. When the available memory is not sufficient to support the required services, the dynamic allocation allows for graceful degradation.

Abstract translation: 这里描述了用于解码带内通道信号和提取音频和数据信号的系统，方法和装置。 通过选择性地过滤信号中的数据的比特流来减少存储器要求，从而处理其中编码的感兴趣的服务。 可以在物理层和数据链路层处理之间共享单个存储器池。 可以在物理层和数据链路层的数据处理之间动态地分配该池中的存储器。 当可用内存不足以支持所需的服务时，动态分配允许优雅的降级。

公开(公告)号：US08255277B1

公开(公告)日：2012-08-28

申请号：US13048493

申请日：2011-03-15

Applicant: David Corts ,  Bryce Wells ,  Paul Signorelli ,  Lee Hunter ,  Terrance Snyder

Inventor： David Corts ,  Bryce Wells ,  Paul Signorelli ,  Lee Hunter ,  Terrance Snyder

IPC: G06Q30/00

CPC classification number: H03G3/001 ,  G06F17/30887 ,  G06Q20/123 ,  G06Q30/0269 ,  G06Q30/0271 ,  G06Q30/0272 ,  H03G3/20 ,  H04H20/18 ,  H04H20/28 ,  H04H20/30 ,  H04H20/31 ,  H04H20/93 ,  H04H2201/18

Abstract: A method and system is presented for coordinating the transmission of supplemental digital data to accompany broadcast data, and in particular, analog radio broadcasts, among a plurality of broadcasters. The supplemental digital data may provide information about the particular broadcast data being transmitted (i.e. cut data) or may be supplemental to such data (i.e. news, weather and traffic data). The supplemental digital data to be presented is sorted based on particular algorithms which may take into account broadcaster-specified criteria such as target audience, time of day, type of broadcast data presented, and the like. The supplemental digital data may be audio data, visual data, or audio-visual data for presentation with the broadcast data. The supplemental digital data may further be advertisement data. The advertisement data may be sold by the broadcasters or the party coordinating the IBOC transmission of the supplemental digital data. The supplemental digital data may play simultaneously with muted broadcast data or at a user-specified time.

Abstract translation: 提出了一种方法和系统，用于协调在多个广播机构之间的广播数据，特别是模拟无线电广播的附加数字数据的传输。 补充数字数据可以提供关于正在发送的特定广播数据（即，切割数据）的信息，或者可以补充这样的数据（即新闻，天气和交通数据）。 要呈现的补充数字数据基于可考虑广播者指定的标准（例如目标受众，一天中的时间，所呈现的广播数据的类型等）的特定算法进行排序。 辅助数字数据可以是音频数据，视觉数据或用于用广播数据呈现的视听数据。 补充数字数据还可以是广告数据。 广告数据可以由广播商或协调补充数字数据的IBOC传输的方出售。 补充数字数据可以与静音广播数据同时播放，或者在用户指定的时间播放。

公开(公告)号：US20120028567A1

公开(公告)日：2012-02-02

申请号：US13189674

申请日：2011-07-25

Applicant: PAUL MARKO

Inventor： PAUL MARKO

IPC: H04W4/06

CPC classification number: H04W4/20 ,  H04H2201/18 ,  H04W4/06 ,  H04W4/21

Abstract: A low cost DAB multichannel receiver comprising a simplified buffering method for buffering content segments from multiple streams contained within the DAB channel, where the receiver enables the listener to navigate buffered content segments from multiple streams within the DAB channel while enabling the broadcaster to control the timeshift of commercial content to the receiver output stream. The receiver's buffered content grows over time and is cleared when tuning away from the channel, thus encouraging listeners desiring to tune in to new content to instead navigate to new buffered segments. Broadcaster control of the listener experience may be enabled by setting content control fields which are observed in the broadcast by the multichannel receivers. Additional embodiments are disclosed.

Abstract translation: 一种低成本DAB多信道接收机，包括用于从DAB信道中包含的多个流缓冲内容段的简化缓冲方法，其中接收器使得收听者能够使听众从DAB信道内的多个流中导航缓冲的内容段，同时使广播者能够控制时移 的商业内容给接收机输出流。 接收器的缓冲内容随着时间的推移而增长，并在从通道调出时清除，从而鼓励听众希望调整新的内容，而不是导航到新的缓冲区段。 可以通过设置由多声道接收机在广播中观察到的内容控制字段来实现听众体验的广播者控制。 公开了另外的实施例。

公开(公告)号：US20110202270A1

公开(公告)日：2011-08-18

申请号：US12930130

申请日：2010-12-28

Applicant: Sridar G. Sharma ,  Binuraj K. Ravindran ,  Jonathan Eng

Inventor： Sridar G. Sharma ,  Binuraj K. Ravindran ,  Jonathan Eng

IPC: G06Q30/00 ,  H04W84/02 ,  H04L27/04 ,  G01C21/00

CPC classification number: H04L65/4069 ,  G06Q30/02 ,  G06Q30/0241 ,  G06Q30/0261 ,  G06Q30/0273 ,  H04H2201/18 ,  H04L27/2602 ,  H04W4/14

Abstract: A system to add metadata to downstream broadcasts to devices such as smart phones, MP3 music players, tablet computers, etc. equipped with receivers to receive said downstream broadcasts and a full time or part time upstream digital data communication path. The devices are controlled to display or playback advertisements, images etc. in the metadata, detect click events indicating interest by a user in something in the metadata and communicate that click event upstream over a full time or part time internet or an SMS data path connection. Upstream communications to implement user interest such as visit web pages, make a phone call, start an e-commerce transaction are implemented by the client devices. The Transmitters have structure to insert metadata in band or out of band with the broadcast program content and can be coupled to ad servers.

Abstract translation: 将元数据添加到下游广播到诸如配备有用于接收所述下游广播的接收机的智能电话，MP3音乐播放器，平板电脑等设备的系统以及全时间或部分时间的上游数字数据通信路径。 这些设备被控制以在元数据中显示或回放广告，图像等，检测指示用户在元数据中的某些内容感兴趣的点击事件，并在全时间或兼职互联网或SMS数据路径连接上传送该点击事件上游 。 上游通信实现用户兴趣，如访问网页，打电话，开始电子商务交易是由客户端设备实现的。 发射机具有将频带或带外的元数据与广播节目内容插入的结构，并且可以耦合到广告服务器。

公开(公告)号：US20090190701A1

公开(公告)日：2009-07-30

申请号：US12010731

申请日：2008-01-29

Applicant: Michael Nekhamkin ,  Valeriy Lotarevich ,  William Schier

Inventor： Michael Nekhamkin ,  Valeriy Lotarevich ,  William Schier

IPC: H04L7/00

CPC classification number: H04L7/0029 ,  H04H40/18 ,  H04H2201/18

Abstract: Methods and systems for adjusting a sampling rate of a digital radio receiver are disclosed that comprise the steps of receiving from a decoder a first frame of data having a first number of samples; determining at the digital radio receiver a phase difference between a receiver clock and a transmitter clock; generating at the digital radio receiver a second frame of data having a second number of samples, wherein the second number of samples depends on the phase difference between the receiver clock and the transmitter clock such that the second number of samples is less than the first number of samples if the transmitter clock is ahead of the receiver clock, and the second number of samples is greater than the first number of samples if the receiver clock is ahead of the transmitter clock; outputting the second frame of data having the second number of samples; and requesting a next frame of data from the decoder at a time that is earlier than a processing time for the first number of samples if the transmitter clock is ahead of the receiver clock and at a time that is later than the processing time for the first number of samples if the receiver clock is ahead of the transmitter clock such that the next frame of data from the decoder and a next transmitter frame are synchronized, and wherein whether the second number of samples is greater than or less than the first number of samples is determined by whether the sampling rate is increased or decreased.

Abstract translation: 公开了一种用于调整数字无线电接收机的采样率的方法和系统，其包括以下步骤：从解码器接收具有第一数量样本的第一数据帧; 在数字无线电接收机处确定接收机时钟和发射机时钟之间的相位差; 在所述数字无线电接收机处产生具有第二数量样本的第二帧数据，其中所述第二数量样本取决于所述接收器时钟和所述发射机时钟之间的相位差，使得所述第二数量的采样小于所述第一数量 如果发射机时钟在接收机时钟之前，并且如果接收机时钟在发射机时钟之前，则第二个采样数量大于第一采样数; 输出具有第二数量样本的第二数据帧; 以及如果所述发射机时钟在所述接收机时钟之前的时间以及比所述第一接收机的处理时间晚的时间，则在比所述第一采样数的处理时间早的时间，从所述解码器请求下一帧数据 如果接收机时钟在发射机时钟之前，使得来自解码器和下一发射机帧的下一帧数据被同步，并且其中第二数目的样本是否大于或小于第一数目的采样 由取样率是否增加决定。

公开(公告)号：US20070274420A1

公开(公告)日：2007-11-29

申请号：US11696578

申请日：2007-04-04

Applicant: William Billings

Inventor： William Billings

IPC: H04L27/06

CPC classification number: H04H20/26 ,  H03J1/0008 ,  H04H2201/18 ,  H04L5/0005

Abstract: The present invention is directed to a radio designed to receive both analog and digital subchannels from radio stations that are broadcasting either an analog only signal, a digital only signal, or a hybrid signal containing both analog and digital subchannels. It allows a user to direct the radio to search for either the next active analog or digital subchannel, or alternately to ignore the analog subchannels and search only for digital subchannels. This is accomplished using a single button for either functionality when searching through incrementing frequencies. Another button may be added for decrementing frequencies with the same basic functionality. In the present invention, when the user presses the “Scan Up” button once for a short period of time, the radio will search for the next active analog or digital subchannel above the current location of the virtual channel map. But if the user presses the button twice in quick succession or holds the button down for a longer period of time, the radio will search only for the next digital subchannel above the current location in the virtual channel map.

Abstract translation: 本发明涉及一种设计用于从正在广播仅模拟信号，仅数字信号或包含模拟和数字子信道的混合信号的无线电台接收模拟和数字子信道的无线电设备。 它允许用户引导无线电装置搜索下一个活动的模拟或数字子信道，或者替代地忽略模拟子信道并仅搜索数字子信道。 当通过增加频率进行搜索时，可以使用单个按钮实现任一功能。 可以添加用于具有相同基本功能的递减频率的另一个按钮。 在本发明中，当用户在短时间内按下“扫描”按钮一次时，无线电装置将搜索虚拟频道图的当前位置之上的下一个活动的模拟或数字子信道。 但是，如果用户快速连续按下按钮两次或将按钮保持较长时间，则无线电将仅搜索虚拟频道图中当前位置之上的下一个数字子信道。

公开(公告)号：US20050099938A1

公开(公告)日：2005-05-12

申请号：US10636161

申请日：2003-08-07

Applicant: Mohsen Sarraf ,  Mohammad Zarrabizadeh

Inventor： Mohsen Sarraf ,  Mohammad Zarrabizadeh

IPC: H04B1/66 ,  H04J11/00

CPC classification number: H04B1/667 ,  H04H2201/18

Abstract: A method and apparatus are disclosed for increasing the time and frequency diversity of a multi-stream signal in a DAB system. A plurality of audio streams are divided into four (4) digital sub-streams, C00, C01, C10, and C11. Each sub-stream C00, C01, C10, and C11 is assigned a unique frequency band, and time slot. A first core sub-stream C10 is mapped to one frequency partition and a second core sub-stream C00 is mapped to another frequency partition and delayed relative to the first core sub-stream. Similarly, two enhancement sub-streams C11 and C01 are mapped to different frequency partitions and are time delayed relative to each other and the core sub-streams. The two core sub-streams C00 and C10 can have a maximum separation across both the time and frequency axes. Each core sub-stream C00 and C10 is separate from one of the enhancement sub-streams in the frequency domain and separate in the time domain from the other enhancement sub-stream. Each core sub-stream C00 and C10 can be combined with any other available core or enhancement sub-stream to form a 64 kbps PAC. In addition, a 96 kbps PAC can be obtained by combining the two core sub-streams C00 and C10 with one of the enhancement sub-streams C00 or C11. Finally, the combination of all four sub-streams produces a full-rate 128 kbps PAC.

Abstract translation: 公开了一种用于增加DAB系统中的多流信号的时间和频率分集的方法和装置。 多个音频流被分成四（4）个数字子流，C 00，C 01，C 10和C 10， SUB> 11 。 每个子流C 00，C 01，C 10和C 11分配了唯一的频带 ，和时间段。 第一核心子流C 10被映射到一个频率分区，并且第二核心子流C 00被映射到另一频率分区并相对于第一核延迟 子流。 类似地，两个增强子流C11和C01被映射到不同的频率分区，并且相对于彼此和核心子流是时间延迟的。 两个核心子流C 00和C 10可以在时间轴和频率轴之间具有最大间隔。 每个核心子流C 00和C 10 10与频域中的一个增强子流分离，并且在时域中与另一个增强子流分开， 流。 每个核心子流C 00和C 10可与任何其他可用的核心或增强子流组合以形成64kbps PAC。 另外，可以通过将两个核心子流C 00和C 10与增强子流C 00之一组合来获得96kbps PAC /或C 11。 最后，所有四个子流的组合产生全速率128kbps PAC。

公开(公告)号：US20040066736A1

公开(公告)日：2004-04-08

申请号：US10377513

申请日：2003-02-28

Inventor： Brian William Kroeger

IPC: H04J015/00

CPC classification number: H04H20/30 ,  H04H40/18 ,  H04H60/50 ,  H04H60/51 ,  H04H60/70 ,  H04H2201/18

Abstract: A method of transmitting digital audio broadcasting signals comprises the steps of generating a plurality of output frames of information to be transmitted, wherein each of the output frames includes a plurality of blocks of data and each of the output frames is synchronized with an absolute time reference, and transmitting the output frames to a plurality of receivers. The information to be transmitted can identify the location of a transmitter. Transmitters that broadcast in accordance with the method and receivers that receive the transmitted signal are also disclosed. A method is also provided for receiving digital audio broadcasting signals comprising the steps of receiving a digital audio broadcasting signal comprising a plurality of output frames of information to be transmitted, wherein each of the output frames includes a plurality of blocks of data and each of the output frames is synchronized with an absolute time reference, and determining the start of each output frame relative to an absolute time reference.

Abstract translation: 一种发送数字音频广播信号的方法包括以下步骤：产生要发送的多个信息输出帧，其中每个输出帧包括多个数据块，并且每个输出帧与绝对时间参考同步 ，并将输出帧发送到多个接收机。 要发送的信息可以识别发射机的位置。 还公开了根据方法广播的发射机和接收发射信号的接收机。 还提供了一种用于接收数字音频广播信号的方法，包括以下步骤：接收包括要发送的多个信息输出帧的数字音频广播信号，其中每个输出帧包括多个数据块， 输出帧与绝对时间参考同步，并且确定每个输出帧相对于绝对时间参考的开始。