公开(公告)号：US20080040121A1

公开(公告)日：2008-02-14

申请号：US11973690

申请日：2007-10-09

申请人： Tian Wang ,  Kazuhito Koishida ,  Hosam Khalil ,  Xiaoqin Sun ,  Wei-Ge Chen

发明人： Tian Wang ,  Kazuhito Koishida ,  Hosam Khalil ,  Xiaoqin Sun ,  Wei-Ge Chen

IPC分类号： G10L19/00

CPC分类号： G10L19/005 ,  G10L19/12 ,  G10L2019/0005

摘要： Techniques and tools related to coding and decoding of audio information are described. For example, redundant coded information for decoding a current frame includes signal history information associated with only a portion of a previous frame. As another example, redundant coded information for decoding a coded unit includes parameters for a codebook stage to be used in decoding the current coded unit only if the previous coded unit is not available. As yet another example, coded audio units each include a field indicating whether the coded unit includes main encoded information representing a segment of an audio signal, and whether the coded unit includes redundant coded information for use in decoding main encoded information.

摘要翻译： 描述与音频信息的编码和解码相关的技术和工具。 例如，用于解码当前帧的冗余编码信息包括仅与先前帧的一部分相关联的信号历史信息。 作为另一示例，用于对已编码单元进行解码的冗余编码信息包括仅当前一编码单元不可用时才将用于解码当前编码单元的码本级的参数。 作为另一示例，编码音频单元各自包括指示编码单元是否包括表示音频信号的段的主编码信息的字段，以及编码单元是否包括用于解码主编码信息的冗余编码信息。

公开(公告)号：US20060271354A1

公开(公告)日：2006-11-30

申请号：US11142603

申请日：2005-05-31

申请人： Xiaoqin Sun ,  Tian Wang ,  Hosam Khalil ,  Kazuhito Koishida ,  Wei-Ge Chen

发明人： Xiaoqin Sun ,  Tian Wang ,  Hosam Khalil ,  Kazuhito Koishida ,  Wei-Ge Chen

IPC分类号： G10L19/14

CPC分类号： G10L19/26

摘要： Techniques and tools are described for processing reconstructed audio signals. For example, a reconstructed audio signal is filtered in the time domain using filter coefficients that are calculated, at least in part, in the frequency domain. As another example, producing a set of filter coefficients for filtering a reconstructed audio signal includes clipping one or more peaks of a set of coefficient values. As yet another example, for a sub-band codec, in a frequency region near an intersection between two sub-bands, a reconstructed composite signal is enhanced.

摘要翻译： 描述了处理重建音频信号的技术和工具。 例如，使用至少部分地在频域中计算的滤波器系数在时域中对重构音频信号进行滤波。 作为另一示例，产生用于对重构音频信号进行滤波的滤波器系数的集合包括限定一组系数值的一个或多个峰值。 作为另一示例，对于子带编解码器，在两个子带之间的交叉点附近的频率区域中，重构的复合信号被增强。

公开(公告)号：US07962335B2

公开(公告)日：2011-06-14

申请号：US12502984

申请日：2009-07-14

申请人： Hosam A. Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

发明人： Hosam A. Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

IPC分类号： G10L21/02

CPC分类号： G10L21/045 ,  G10L19/005

摘要： Techniques and tools related to delayed or lost coded audio information are described. For example, a concealment technique for one or more missing frames is selected based on one or more factors that include a classification of each of one or more available frames near the one or more missing frames. As another example, information from a concealment signal is used to produce substitute information that is relied on in decoding a subsequent frame. As yet another example, a data structure having nodes corresponding to received packet delays is used to determine a desired decoder packet delay value.

摘要翻译： 描述与延迟或丢失的编码音频信息相关的技术和工具。 例如，基于一个或多个因素选择一个或多个缺失帧的隐藏技术，所述一个或多个因素包括一个或多个缺失帧附近的一个或多个可用帧中的每一个的分类。 作为另一示例，来自隐藏信号的信息用于产生在对后续帧进行解码时所依赖的替代信息。 作为另一示例，使用具有与接收到的分组延迟相对应的节点的数据结构来确定期望的解码器分组延迟值。

公开(公告)号：US07831421B2

公开(公告)日：2010-11-09

申请号：US11142602

申请日：2005-05-31

申请人： Hosam A. Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

发明人： Hosam A. Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

IPC分类号： G10L21/02

CPC分类号： G10L21/045 ,  G10L19/005

摘要： Techniques and tools related to delayed or lost coded audio information are described. For example, a concealment technique for one or more missing frames is selected based on one or more factors that include a classification of each of one or more available frames near the one or more missing frames. As another example, information from a concealment signal is used to produce substitute information that is relied on in decoding a subsequent frame. As yet another example, a data structure having nodes corresponding to received packet delays is used to determine a desired decoder packet delay value.

摘要翻译： 描述与延迟或丢失的编码音频信息相关的技术和工具。 例如，基于一个或多个因素选择一个或多个缺失帧的隐藏技术，所述一个或多个因素包括一个或多个缺失帧附近的一个或多个可用帧中的每一个的分类。 作为另一示例，来自隐藏信号的信息用于产生在对后续帧进行解码时所依赖的替代信息。 作为另一示例，使用具有与接收到的分组延迟相对应的节点的数据结构来确定期望的解码器分组延迟值。

公开(公告)号：US20090276212A1

公开(公告)日：2009-11-05

申请号：US12502984

申请日：2009-07-14

申请人： Hosam A. Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

发明人： Hosam A. Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

IPC分类号： G10L21/02

CPC分类号： G10L21/045 ,  G10L19/005

摘要： Techniques and tools related to delayed or lost coded audio information are described. For example, a concealment technique for one or more missing frames is selected based on one or more factors that include a classification of each of one or more available frames near the one or more missing frames. As another example, information from a concealment signal is used to produce substitute information that is relied on in decoding a subsequent frame. As yet another example, a data structure having nodes corresponding to received packet delays is used to determine a desired decoder packet delay value.

摘要翻译： 描述与延迟或丢失的编码音频信息相关的技术和工具。 例如，基于一个或多个因素来选择一个或多个缺失帧的隐藏技术，所述一个或多个因素包括一个或多个缺失帧附近的一个或多个可用帧中的每一个的分类。 作为另一示例，来自隐藏信号的信息用于产生在对后续帧进行解码时所依赖的替代信息。 作为另一示例，使用具有与接收到的分组延迟相对应的节点的数据结构来确定期望的解码器分组延迟值。

公开(公告)号：US07280960B2

公开(公告)日：2007-10-09

申请号：US11197914

申请日：2005-08-04

申请人： Tian Wang ,  Kazuhito Koishida ,  Hosam A. Khalil ,  Xiaoqin Sun ,  Wei-Ge Chen

发明人： Tian Wang ,  Kazuhito Koishida ,  Hosam A. Khalil ,  Xiaoqin Sun ,  Wei-Ge Chen

IPC分类号： G10L21/00

CPC分类号： G10L19/005 ,  G10L19/12 ,  G10L2019/0005

摘要： Techniques and tools related to coding and decoding of audio information are described. For example, redundant coded information for decoding a current frame includes signal history information associated with only a portion of a previous frame. As another example, redundant coded information for decoding a coded unit includes parameters for a codebook stage to be used in decoding the current coded unit only if the previous coded unit is not available. As yet another example, coded audio units each include a field indicating whether the coded unit includes main encoded information representing a segment of an audio signal, and whether the coded unit includes redundant coded information for use in decoding main encoded information.

摘要翻译： 描述与音频信息的编码和解码相关的技术和工具。 例如，用于解码当前帧的冗余编码信息包括仅与先前帧的一部分相关联的信号历史信息。 作为另一示例，用于对已编码单元进行解码的冗余编码信息包括仅当前一编码单元不可用时才将用于解码当前编码单元的码本级的参数。 作为另一示例，编码音频单元各自包括指示编码单元是否包括表示音频信号的段的主编码信息的字段，以及编码单元是否包括用于解码主编码信息的冗余编码信息。

公开(公告)号：US20060271373A1

公开(公告)日：2006-11-30

申请号：US11142602

申请日：2005-05-31

申请人： Hosam Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

发明人： Hosam Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

IPC分类号： G10L21/00

CPC分类号： G10L21/045 ,  G10L19/005

摘要： Techniques and tools related to delayed or lost coded audio information are described. For example, a concealment technique for one or more missing frames is selected based on one or more factors that include a classification of each of one or more available frames near the one or more missing frames. As another example, information from a concealment signal is used to produce substitute information that is relied on in decoding a subsequent frame. As yet another example, a data structure having nodes corresponding to received packet delays is used to determine a desired decoder packet delay value.

公开(公告)号：US20060271359A1

公开(公告)日：2006-11-30

申请号：US11197792

申请日：2005-08-04

申请人： Hosam Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

发明人： Hosam Khalil ,  Tian Wang ,  Kazuhito Koishida ,  Xiaoqin Sun ,  Wei-Ge Chen

IPC分类号： G10L21/02

CPC分类号： G10L21/045 ,  G10L19/005

摘要： Techniques and tools related to delayed or lost coded audio information are described. For example, a concealment technique for one or more missing frames is selected based on one or more factors that include a classification of each of one or more available frames near the one or more missing frames. As another example, information from a concealment signal is used to produce substitute information that is relied on in decoding a subsequent frame. As yet another example, a data structure having nodes corresponding to received packet delays is used to determine a desired decoder packet delay value.

公开(公告)号：US20060271355A1

公开(公告)日：2006-11-30

申请号：US11142605

申请日：2005-05-31

申请人： Tian Wang ,  Kazuhito Koishida ,  Hosam Khalil ,  Xiaoqin Sun ,  Wei-Ge Chen

发明人： Tian Wang ,  Kazuhito Koishida ,  Hosam Khalil ,  Xiaoqin Sun ,  Wei-Ge Chen

IPC分类号： G10L19/00

CPC分类号： G10L19/005 ,  G10L19/12 ,  G10L2019/0005

摘要： Techniques and tools related to coding and decoding of audio information are described. For example, redundant coded information for decoding a current frame includes signal history information associated with only a portion of a previous frame. As another example, redundant coded information for decoding a coded unit includes parameters for a codebook stage to be used in decoding the current coded unit only if the previous coded unit is not available. As yet another example, coded audio units each include a field indicating whether the coded unit includes main encoded information representing a segment of an audio signal, and whether the coded unit includes redundant coded information for use in decoding main encoded information.

摘要翻译： 描述与音频信息的编码和解码相关的技术和工具。 例如，用于解码当前帧的冗余编码信息包括仅与先前帧的一部分相关联的信号历史信息。 作为另一示例，用于对已编码单元进行解码的冗余编码信息包括仅当前一编码单元不可用时才将用于解码当前编码单元的码本级的参数。 作为另一示例，编码音频单元各自包括指示编码单元是否包括表示音频信号的段的主编码信息的字段，以及编码单元是否包括用于解码主编码信息的冗余编码信息。

公开(公告)号：US09435873B2

公开(公告)日：2016-09-06

申请号：US13182449

申请日：2011-07-14

申请人： Shankar Regunathan ,  Kazuhito Koishida ,  Harshavardhana Narayana Kikkeri

发明人： Shankar Regunathan ,  Kazuhito Koishida ,  Harshavardhana Narayana Kikkeri

IPC分类号： H04R3/00 ,  G01S3/80 ,  G01S3/808 ,  G01S3/82

CPC分类号： G01S3/8083 ,  G01S3/8006 ,  G01S3/82 ,  H04R3/005

摘要： An array of microphones placed on a mobile robot provides multiple channels of audio signals. A received set of audio signals is called an audio segment, which is divided into multiple frames. A phase analysis is performed on a frame of the signals from each pair of microphones. If both microphones are in an active state during the frame, a candidate angle is generated for each such pair of microphones. The result is a list of candidate angles for the frame. This list is processed to select a final candidate angle for the frame. The list of candidate angles is tracked over time to assist in the process of selecting the final candidate angle for an audio segment.

摘要翻译： 放置在移动机器人上的麦克风阵列提供多个音频信号通道。 接收到的一组音频信号被称为音频片段，其被分成多个帧。 对来自每对麦克风的信号的帧进行相位分析。 如果在帧期间两个麦克风处于活动状态，则为每个这样的麦克风生成候选角度。 结果是帧的候选角度列表。 处理该列表以选择帧的最终候选角度。 候选角度的列表随着时间被跟踪以帮助选择音频片段的最终候选角度的过程。