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    Method and system for generating an error indicator based on code and control information consistency in a communication system
    3.
    发明公开
    Method and system for generating an error indicator based on code and control information consistency in a communication system 有权
    方法和系统，用于在通信系统中显示的控制和代码信息之间的一致性错误

    公开(公告)号：EP1109345A3

    公开(公告)日：2006-07-12

    申请号：EP00310942.8

    申请日：2000-12-08

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Laneman, Jerry Nicholas ,  Sinha, Deepen ,  Sundberg, Carl-Erik Wilhelm ,  Tracey, James Walter

    IPC: H04L1/00

    CPC classification number: H04L1/00 ,  H04L1/004

    Abstract: Improved error screening techniques for use in processing digital audio or other types of information received in a digital communication system. Control information associated with a given packet of the received information is identified and compared with a decoding requirement of the packet, in order to control the generation of an error indicator for the packet. More particularly, the error indicator may be generated in response to an inconsistency between the control information and the decoding requirement. For example, the control information may include an indication of packet length that can be compared to a number of bits required to decode the corresponding packet, with any inconsistency between the packet length indication and the number of required bits leading to the generation of an error flag for the packet. The invention is particularly well-suited for use in the processing of encoded digital audio information received in a hybrid in-band on-channel (HIBOC) digital audio broadcasting (DAB) system, but is also applicable to other types of information and other types of communication systems.

    Apparatus for communicating multiple digital representations of a signal
    5.
    发明公开
    Apparatus for communicating multiple digital representations of a signal 审中-公开
    Anordnung zurÜbertragungvon vielfachen digitalen Darstellungen eines Signals

    公开(公告)号：EP1041766A2

    公开(公告)日：2000-10-04

    申请号：EP00302319.9

    申请日：2000-03-22

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Lou, Hui-Ling ,  Sinha, Deepen ,  Sundberg, Carl-Erik Wilhelm

    IPC: H04L5/02

    CPC classification number: H04H20/30 ,  H04H60/07 ,  H04H2201/186

    Abstract: In a communications system implementing, e.g., an in-band on channel AM (IBOC-AM) (also known as "hybrid IBOC-AM") scheme, multiple bit streams are used to represent an audio signal to be transmitted over one or more frequency bands including, e.g., parts of an AM frequency band for radio broadcast. These bit streams contain various and/or equivalent amounts of audio information. In an illustrative embodiment, at least one of the bit streams is a core bit stream containing core audio information. The remaining bit streams are enhancement bit streams containing enhancement audio information. The core bit stream is necessary for recovering the audio signal with minimal acceptable quality. Such quality is enhanced when the core bit stream, together with one or more of the enhancement bit streams, is used to recover the audio signal. In accordance with the invention, the AM frequency band is divided into subbands. Each of the core and enhancement bit streams is assigned to a respective one of the subbands for transmission. The assignment is conducive to an effective treatment of interference affecting the IBOC-AM system. Other embodiments may include, e.g., communications of the multiple bit streams in accordance with the invention in an IBOC-FM system, a satellite broadcasting system, etc.

    Abstract translation: 在实现例如带内频道AM（IBOC-AM）（也称为“混合IBOC-AM”）方案的通信系统中，使用多个比特流来表示要通过一个或多个 频带包括例如用于无线电广播的AM频带的部分。 这些比特流包含各种和/或等量的音频信息。 在说明性实施例中，位流中的至少一个是包含核心音频信息的核心位流。 剩余的比特流是包含增强音频信息的增强比特流。 核心比特流对于以最小可接受的质量恢复音频信号是必需的。 当使用核心位流与一个或多个增强比特流来恢复音频信号时，这种质量得到增强。 根据本发明，AM频带被划分成子带。 核心和增强比特流中的每一个被分配给相应的一个子带用于传输。 这项任务有利于对影响IBOC-AM系统的干扰的有效处理。 其他实施例可以包括例如根据本发明的多个比特流在IBOC-FM系统，卫星广播系统等中的通信。

    Joint multiple program error concealment for Digital Audio Broadcasting DAB and other applications
    8.
    发明公开
    Joint multiple program error concealment for Digital Audio Broadcasting DAB and other applications 有权
    为数字无线电广播DAB和其他应用几个方案相结合的错误隐藏

    公开(公告)号：EP1024616A3

    公开(公告)日：2006-04-05

    申请号：EP00300357.1

    申请日：2000-01-19

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Sinha, Deepen ,  Sundberg, Carl-Erik Wilhelm

    IPC: H04H1/00

    CPC classification number: H04L1/0083 ,  H04H2201/17 ,  H04H2201/20 ,  H04L1/0054 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/08

    Abstract: The invention provides methods and apparatus for processing information, e.g., audio, video or image information, for transmission in a communication system. In an illustrative embodiment, a multiple program coder encodes a bitstream associated each of the programs, in accordance with a specified bit allocation. An outer code encoder receives the encoded bitstreams from the multiple program coder, and jointly applies an outer code, e.g., a CRC code, RS code, BCH code or other type of linear block code, to subblocks of a subset of the resulting encoded bitstreams. The outer code is applied such that subblocks of each of the encoded bitstreams in the subset of the encoded bitstreams are associated with a single outer code block. The number of subblocks associated with a given outer code block may be an integer or non-integer number of code blocks. The invention allows a designated number of program subblocks to share a given outer code block, such that outer code error flags can be generated for smaller groups of bits per program than would otherwise be possible. An inner code encoder may be used to apply an inner code, e.g., a convolutional code, turbo code or trellis coded modulation, to the resulting outer code blocks.

    Abstract translation: 本发明提供了用于处理信息的方法和装置，例如，音频，视频或图像信息，用于在通信系统中的传输。在一个说明性实施例中，多个程序编码器进行编码相关联的每个节目的比特流，在雅舞蹈与指定位 分配。 外码编码器接收来自多个程序编码器的编码比特流，共同适用于外码，例如CRC码，RS码，BCH码或其它类型的线性块码，对所得到的编码比特流的子集的子块 ， 外码应用于搜索做各自的编码比特流的所述子集的编码比特流的子块与单个外部码块相关联。 与给定的外码块相关联的子块的数目可以是代码块的整数或非整数。 本发明允许程序子块的指定数目共享一个给定的外码块，检查没有外码错误标志可以比其它可能更小的组每个节目的比特来生成。 内码编码器可用于以适用于帧内码，E. G.，卷积码，turbo码或网格编码调制，向得到的外码块。

    Multistream-in-band-on-channel transmission system
    9.
    发明公开
    Multistream-in-band-on-channel transmission system 有权
    设备中有用频带上的信道传输具有多个数据流

    公开(公告)号：EP1041756A3

    公开(公告)日：2003-02-12

    申请号：EP00302601.0

    申请日：2000-03-29

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Mansour, David ,  Sinha, Deepen ,  Sundberg, Carl-Erik Wilhelm

    IPC: H04H1/00 ,  H04L5/06 ,  H04L5/02 ,  H04L1/00

    CPC classification number: H04H20/30 ,  H04H60/07 ,  H04H2201/183 ,  H04H2201/186 ,  H04L5/023

    Abstract: Methods and apparatus for processing information, e.g., audio, speech, video or image information, for transmission in a communication system. In an illustrative embodiment, a set of bit streams are generated from an audio information signal. The set of bit streams may be, e.g., a total of four bit streams generated by separating each of two multiple description bit streams, corresponding to separate representations of the audio information signal, into first and second class bit streams. The first and second class bit streams associated with the first multiple description bit stream may then be transmitted in respective first and second subbands of a first sideband of an FM host carrier, while the first and second class bit streams associated with the second multiple description bit stream are transmitted in respective first and second subbands of a second sideband of the FM host carrier. The first class bit streams may be provided with a different level of error protection than the second class bit streams, e.g., by utilizing different portions of a non-uniform power profile for the corresponding subbands, or by placement of the bit streams in subbands having different susceptibility to interference. Delay may be introduced between at least a subset of the bit streams in order to provide improved performance, e.g., in the presence of fading.

    Multiple program decoding for digital audio broardcasting and other applications
    10.
    发明公开
    Multiple program decoding for digital audio broardcasting and other applications 审中-公开
    Mehrfachprogrammdekodierungfürden digitalenHörfunkundfürandere Anwendungen

    公开(公告)号：EP1024617A2

    公开(公告)日：2000-08-02

    申请号：EP00300377.9

    申请日：2000-01-19

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Sinha, Deepen ,  Sundberg, Carl-Erik Wilhelm

    IPC: H04H1/00

    CPC classification number: H04L1/0083 ,  H04H2201/186 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/08

    Abstract: The invention provides methods and apparatus for decoding multiple program information, e.g., audio, video or image information, in a communication system. In an illustrative embodiment, a multiple program decoder includes a deinterleaver for deinterleaving information corresponding to a set of frames, using a specified deinterleaving length. A given one of the frames includes information from each of at least a subset of the programs, and the frames are encoded using an outer code, e.g., a CRC code, RS code, BCH code or other type of linear block code, and an inner code, e.g., a convolutional code, turbo code or trellis coded modulation. The multiple program decoder includes an inner code decoder for decoding the inner code over one or more of the programs, and an outer code decoder for decoding the outer code for a selected one of the programs. The deinterleaving length of the deinterleaver and operating rate of the inner code decoder can be configured such that the multiple program decoder provides substantially instantaneous tuning within a given cluster of programs, or within a set of clusters each including multiple programs. The programs may, but need not, include jointly-coded audio programs. The invention may be implemented in numerous applications, such as simultaneous multiple program listening and/or recording, simultaneous delivery of audio and data, etc.

    Abstract translation: 本发明提供了用于在通信系统中解码多个节目信息（例如音频，视频或图像信息）的方法和装置。 在说明性实施例中，多程序解码器包括用于使用指定的去交织长度对与一组帧相对应的信息进行解交织的解交织器。 给定的一个帧包括来自节目的至少一个子集中的每一个的信息，并且使用外部码例如CRC码，RS码，BCH码或其他类型的线性块码对帧进行编码，以及 内部代码，例如卷积码，turbo码或网格编码调制。 多重节目解码器包括用于通过一个或多个节目对内部码进行解码的内部码解码器，以及用于解码所选择的一个节目的外部码的外部码解码器。 解码器的解交织长度和内码解码器的操作速率可以被配置为使得多程序解码器在给定的程序集群内或在包括多个程序的一组集群内提供基本上即时的调谐。 程序可以但不必包括联合编码的音频节目。 本发明可以在许多应用中实现，例如同时多节目收听和/或记录，同时传送音频和数据等。

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