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1. 发明授权

US08041051B2 Dual streaming with exchange of FEC streams by audio sinks 失效
标题翻译：通过音频接收器交换FEC流的双流
公开(公告)号：US08041051B2
公开(公告)日：2011-10-18
申请号：US12053743
申请日：2008-03-24
申请人： Laurent Pilati , Mickael Jougit
发明人： Laurent Pilati , Mickael Jougit
IPC分类号： H04B5/00 , H04B3/00
CPC分类号： H04L5/0001 , H04L1/004 , H04L1/0083 , H04L1/02 , H04L25/14 , H04L2001/0092
摘要： A system and method is described herein in which an audio source wirelessly transmits audio content to a first audio sink over one wireless link and to a second audio sink over another wireless link. The two audio sinks also exchange forward error correction (FEC) streams over a wireless link between the two audio sinks, wherein the FEC streams are generated by FEC encoding the audio content received from the audio source. The audio sinks advantageously use the exchanged FEC information to synchronize the playback of the audio content as well as to improve the robustness of the wireless links with the audio source in a manner that does not consume additional bandwidth on those links.
摘要翻译：本文描述了一种系统和方法，其中音频源通过一条无线链路将音频内容无线传输到第一音频接收器，并通过另一无线链路传输到第二音频接收器。两个音频接收器还通过两个音频接收器之间的无线链路交换前向纠错（FEC）流，其中通过对从音频源接收的音频内容进行FEC编码来生成FEC流。音频接收器有利地使用交换的FEC信息来同步音频内容的回放，以及以不消耗这些链路上的附加带宽的方式来提高与音频源的无线链路的鲁棒性。

2. 发明申请

US20110051957A1 JITTER BUFFER ADAPTATION BASED ON AUDIO CONTENT 有权
标题翻译：基于音频内容的抖动缓冲器适配器
公开(公告)号：US20110051957A1
公开(公告)日：2011-03-03
申请号：US12942856
申请日：2010-11-09
申请人： Mickael Jougit , Laurent Pilati
发明人： Mickael Jougit , Laurent Pilati
IPC分类号： H04B15/00
CPC分类号： H04J3/0632
摘要： A system and method for discarding or inserting audio frames in a jitter buffer is described. The system and method provides improved audio quality as compared to conventional jitter buffer management systems. In one embodiment, buffer control logic determines whether to discard audio frames to be stored in a jitter buffer or to insert audio frames among audio frames to be output from a jitter buffer based not only on the number of audio frames currently stored in the jitter buffer but also based on the power of the current audio frame to be stored in or output from the jitter buffer. The system and method is generally applicable to any wireless or wired communication system in which audio signals are transmitted between entities operating in different clock domains.
摘要翻译：描述了用于在抖动缓冲器中丢弃或插入音频帧的系统和方法。与传统的抖动缓冲管理系统相比，该系统和方法提供了改进的音频质量。在一个实施例中，缓冲器控制逻辑确定是否丢弃要存储在抖动缓冲器中的音频帧，或者不仅基于当前存储在抖动缓冲器中的音频帧的数量，从抖动缓冲器输出的音频帧中插入音频帧而且还基于要存储在抖动缓冲器中或从抖动缓冲器输出的当前音频帧的功率。该系统和方法通常适用于任何无线或有线通信系统，其中在不同时钟域内操作的实体之间传输音频信号。

3. 发明授权

US07852882B2 Jitter buffer adaptation based on audio content 失效
标题翻译：基于音频内容的抖动缓冲器适配
公开(公告)号：US07852882B2
公开(公告)日：2010-12-14
申请号：US12019044
申请日：2008-01-24
申请人： Mickael Jougit , Laurent Pilati
发明人： Mickael Jougit , Laurent Pilati
IPC分类号： H04J3/06 , G06F15/173
CPC分类号： H04J3/0632
摘要： A system and method for discarding or inserting audio frames in a jitter buffer is described. The system and method provides improved audio quality as compared to conventional jitter buffer management systems. In one embodiment, buffer control logic determines whether to discard audio frames to be stored in a jitter buffer or to insert audio frames among audio frames to be output from a jitter buffer based not only on the number of audio frames currently stored in the jitter buffer but also based on the power of the current audio frame to be stored in or output from the jitter buffer. The system and method is generally applicable to any wireless or wired communication system in which audio signals are transmitted between entities operating in different clock domains.
摘要翻译：描述了用于在抖动缓冲器中丢弃或插入音频帧的系统和方法。与传统的抖动缓冲管理系统相比，该系统和方法提供了改进的音频质量。在一个实施例中，缓冲器控制逻辑确定是否丢弃要存储在抖动缓冲器中的音频帧，或者不仅基于当前存储在抖动缓冲器中的音频帧的数量，从抖动缓冲器输出的音频帧中插入音频帧而且还基于要存储在抖动缓冲器中或从抖动缓冲器输出的当前音频帧的功率。该系统和方法通常适用于任何无线或有线通信系统，其中在不同时钟域内操作的实体之间传输音频信号。

4. 发明授权

US08706479B2 Packet loss concealment for sub-band codecs 有权
标题翻译：子带编解码器的丢包隐藏
公开(公告)号：US08706479B2
公开(公告)日：2014-04-22
申请号：US12614153
申请日：2009-11-06
申请人： Robert W. Zopf , Laurent Pilati
发明人： Robert W. Zopf , Laurent Pilati
IPC分类号： G10L19/00
CPC分类号： G10L19/005 , G10L19/0204
摘要： Packet loss concealment systems and methods are described that may be used in conjunction with a Bluetooth® Low-Complexity Sub-band Coding (LC-SBC) codec or other sub-band codecs, including but not limited to an MPEG-1 Audio Layer 3 (MP3) codec, an Advanced Audio Coding (AAC) codec, and a Dolby AC-3 codec.
摘要翻译：描述了可以与蓝牙低复杂度子带编码（LC-SBC）编解码器或其他子带编解码器结合使用的分组丢失隐藏系统和方法，包括但不限于MPEG-1音频层3 （MP3）编解码器，高级音频编码（AAC）编解码器和杜比AC-3编解码器。

5. 发明申请

US20090222264A1 SUB-BAND CODEC WITH NATIVE VOICE ACTIVITY DETECTION 有权
标题翻译：具有内部语音活动检测的子带编码器
公开(公告)号：US20090222264A1
公开(公告)日：2009-09-03
申请号：US12394403
申请日：2009-02-27
申请人： Laurent Pilati , Syavosh Zad-Issa
发明人： Laurent Pilati , Syavosh Zad-Issa
IPC分类号： G10L15/20
CPC分类号： G10L19/0204 , G10L25/78
摘要： An augmented version of a Low-Complexity Sub-band Coder (LC-SBC) is described herein that is better suited than conventional LC-SBC for wideband voice communication in the Bluetooth™ framework, where minimizing the power consumption is of paramount importance. The augmented version of LC-SBC utilizes certain techniques associated with speech coding, such as Voice Activity Detection (VAD), to reduce bandwidth usage and power consumption while maintaining voice quality. The augmented version of LC-SBC reduces the average bit rate used for transmitting wideband speech in a manner that does not add significant computational complexity. Furthermore, the augmented version of LC-SBC may advantageously be implemented in a manner that does not require any modification of the underlying logic/structure of LC-SBC.
摘要翻译：本文描述了低复杂度子带编码器（LC-SBC）的增强版本，其在蓝牙TM框架中比传统LC-SBC更适合于宽带语音通信，其中最小化功率消耗是至关重要的。 LC-SBC的增强版本利用与语音编码相关联的某些技术，例如语音活动检测（VAD），以在保持语音质量的同时减少带宽使用和功耗。 LC-SBC的增强版本以不增加显着计算复杂度的方式降低了用于发送宽带语音的平均比特率。此外，可以有利地以不需要对LC-SBC的基础逻辑/结构进行任何修改的方式实现LC-SBC的增强版本。

6. 发明申请

US20090190614A1 JITTER BUFFER ADAPTATION BASED ON AUDIO CONTENT 失效
标题翻译：基于音频内容的抖动缓冲器适配器
公开(公告)号：US20090190614A1
公开(公告)日：2009-07-30
申请号：US12019044
申请日：2008-01-24
申请人： Mickael Jougit , Laurent Pilati
发明人： Mickael Jougit , Laurent Pilati
IPC分类号： H04J3/06
CPC分类号： H04J3/0632
摘要： A system and method for discarding or inserting audio frames in a jitter buffer is described. The system and method provides improved audio quality as compared to conventional jitter buffer management systems. In one embodiment, buffer control logic determines whether to discard audio frames to be stored in a jitter buffer or to insert audio frames among audio frames to be output from a jitter buffer based not only on the number of audio frames currently stored in the jitter buffer but also based on the power of the current audio frame to be stored in or output from the jitter buffer. The system and method is generally applicable to any wireless or wired communication system in which audio signals are transmitted between entities operating in different clock domains.
摘要翻译：描述了用于在抖动缓冲器中丢弃或插入音频帧的系统和方法。与传统的抖动缓冲管理系统相比，该系统和方法提供了改进的音频质量。在一个实施例中，缓冲器控制逻辑确定是否丢弃要存储在抖动缓冲器中的音频帧，或者不仅基于当前存储在抖动缓冲器中的音频帧的数量，从抖动缓冲器输出的音频帧中插入音频帧而且还基于要存储在抖动缓冲器中或从抖动缓冲器输出的当前音频帧的功率。该系统和方法通常适用于任何无线或有线通信系统，其中在不同时钟域内操作的实体之间传输音频信号。

7. 发明申请

US20090099851A1 ADAPTIVE BIT POOL ALLOCATION IN SUB-BAND CODING 审中-公开
标题翻译：子带编码中的自适应位池分配
公开(公告)号：US20090099851A1
公开(公告)日：2009-04-16
申请号：US12018443
申请日：2008-01-23
申请人： Laurent Pilati , Mickael Jougit
发明人： Laurent Pilati , Mickael Jougit
IPC分类号： G10L19/00
CPC分类号： G10L19/035 , G10L19/002 , G10L19/0204
摘要： In a Bluetooth™ Sub-band Codec (SBC), the size of a bit pool allocated for encoding is adapted in a manner that is dependent upon the audio content that is being encoded. In one implementation, the size of the bit pool is increased during periods when the audio input signal represents an active audio signal, such as speech or music, and decreased when the audio input signal represents background noise or silence. This has the effect of increasing the bit rate (and thus the audio quality) in the presence of speech or music but decreasing the bit rate (and thus the audio quality) in the presence of background noise or silence. By adapting the size of the bit pool in this manner, the quality of the encoded bit-stream transmitted from the SBC encoder may be improved or power may be conserved depending upon the implementation.
摘要翻译：在蓝牙（TM）子频带编解码器（SBC）中，分配用于编码的比特池的大小以取决于正被编码的音频内容的方式进行调整。在一个实现中，当音频输入信号表示诸如语音或音乐的有效音频信号的时段期间，比特池的大小增加，并且当音频输入信号表示背景噪声或静音时，位池的大小减小。这具有在存在语音或音乐的情况下增加比特率（并因此提高音频质量）但是在存在背景噪声或静音的情况下降低比特率（并因此降低音频质量）的效果。通过以这种方式调整比特池的大小，可以根据实现来改善从SBC编码器发送的编码比特流的质量或功率可以被保存。

8. 发明申请

US20110320214A1 DUAL STREAMING WITH EXCHANGE OF FEC STREAMS BY AUDIO SINKS 有权
标题翻译：通过音频接口交换FEC流的双向流
公开(公告)号：US20110320214A1
公开(公告)日：2011-12-29
申请号：US13227710
申请日：2011-09-08
申请人： Laurent Pilati , Mickael Jougit
发明人： Laurent Pilati , Mickael Jougit
IPC分类号： G10L19/00
CPC分类号： H04L5/0001 , H04L1/004 , H04L1/0083 , H04L1/02 , H04L25/14 , H04L2001/0092
摘要： A system and method is described herein in which an audio source wirelessly transmits audio content to a first audio sink over one wireless link and to a second audio sink over another wireless link. The two audio sinks also exchange forward error correction (FEC) streams over a link between the two audio sinks, wherein the FEC streams are generated by FEC encoding the audio content received from the audio source. The audio sinks advantageously use the exchanged FEC information to synchronize the playback of the audio content as well as to improve the robustness of the wireless links with the audio source in a manner that does not consume additional bandwidth on those links.
摘要翻译：这里描述了一种系统和方法，其中音频源通过一条无线链路将音频内容无线传输到第一音频接收器，并通过另一无线链路传输到第二音频接收器。两个音频接收器还通过两个音频接收器之间的链路交换前向纠错（FEC）流，其中通过对从音频源接收的音频内容进行FEC编码来生成FEC流。音频接收器有利地使用交换的FEC信息来同步音频内容的回放，以及以不消耗这些链路上的附加带宽的方式来提高与音频源的无线链路的鲁棒性。

9. 发明申请

US20100125454A1 PACKET LOSS CONCEALMENT FOR SUB-BAND CODECS 有权
标题翻译：分组编码器的分组丢失保护
公开(公告)号：US20100125454A1
公开(公告)日：2010-05-20
申请号：US12614153
申请日：2009-11-06
申请人： Robert W. Zopf , Laurent Pilati
发明人： Robert W. Zopf , Laurent Pilati
IPC分类号： G10L21/04
CPC分类号： G10L19/005 , G10L19/0204
摘要： Packet loss concealment systems and methods are described that may be used in conjunction with a Bluetooth® Low-Complexity Sub-band Coding (LC-SBC) codec or other sub-band codecs, including but not limited to an MPEG-1 Audio Layer 3 (MP3) codec, an Advanced Audio Coding (AAC) codec, and a Dolby AC-3 codec.
摘要翻译：描述了可以与蓝牙低复杂度子带编码（LC-SBC）编解码器或其他子带编解码器结合使用的分组丢失隐藏系统和方法，包括但不限于MPEG-1音频层3 （MP3）编解码器，高级音频编码（AAC）编解码器和杜比AC-3编解码器。

10. 发明申请

US20090238375A1 DUAL STREAMING WITH EXCHANGE OF FEC STREAMS BY AUDIO SINKS 失效
标题翻译：通过音频接口交换FEC流的双向流
公开(公告)号：US20090238375A1
公开(公告)日：2009-09-24
申请号：US12053743
申请日：2008-03-24
申请人： Laurent Pilati , Mickael Jougit
发明人： Laurent Pilati , Mickael Jougit
IPC分类号： H04B5/00
CPC分类号： H04L5/0001 , H04L1/004 , H04L1/0083 , H04L1/02 , H04L25/14 , H04L2001/0092
摘要： A system and method is described herein in which an audio source wirelessly transmits audio content to a first audio sink over one wireless link and to a second audio sink over another wireless link. The two audio sinks also exchange forward error correction (FEC) streams over a wireless link between the two audio sinks, wherein the FEC streams are generated by FEC encoding the audio content received from the audio source. The audio sinks advantageously use the exchanged FEC information to synchronize the playback of the audio content as well as to improve the robustness of the wireless links with the audio source in a manner that does not consume additional bandwidth on those links.
摘要翻译：这里描述了一种系统和方法，其中音频源通过一条无线链路将音频内容无线传输到第一音频接收器，并通过另一无线链路传输到第二音频接收器。两个音频接收器还通过两个音频接收器之间的无线链路交换前向纠错（FEC）流，其中通过对从音频源接收的音频内容进行FEC编码来生成FEC流。音频接收器有利地使用交换的FEC信息来同步音频内容的回放，以及以不消耗这些链路上的附加带宽的方式来提高与音频源的无线链路的鲁棒性。

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