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1. 发明授权

US09191516B2 Teleconferencing using steganographically-embedded audio data 有权
标题翻译：使用隐形嵌入式音频数据进行电话会议
公开(公告)号：US09191516B2
公开(公告)日：2015-11-17
申请号：US13771957
申请日：2013-02-20
申请人： Qualcomm Incorporated
发明人： Stephane Pierre Villette , Daniel J. Sinder
IPC分类号： H04M3/56 , G10L19/018
CPC分类号： H04M3/568 , G10L19/018
摘要： A multi-party control unit (MCU) generates, based on audio data streams that represent sounds associated terminal devices, a mixed audio data stream. In addition, the MCU modifies the mixed mono audio data to steganographically embed sub-streams that include representations of the mono audio data streams. A terminal device receives the modified mixed audio data stream. When the terminal device is configured for stereo playback, the terminal device performs an inverse steganographic process to extract, from the mixed audio data stream, the sub-streams. The terminal device generates and outputs multi-channel audio data based on the extracted sub-streams and the mixed audio data stream. When the terminal device is not configured for stereo playback, the terminal device outputs sound based on the mixed audio data stream without extracting the embedded sub-streams.
摘要翻译：多方控制单元（MCU）基于表示声音关联终端设备的音频数据流，生成混合音频数据流。此外，MCU将混合的单声道音频数据修改为隐写地嵌入包括单声道音频数据流的表示的子流。终端设备接收修改的混合音频数据流。当终端设备被配置为用于立体声回放时，终端设备执行逆隐写处理以从混合音频数据流中提取子流。终端设备基于所提取的子流和混合音频数据流生成并输出多声道音频数据。当终端设备未配置为立体声播放时，终端设备基于混合音频数据流输出声音，而不提取嵌入的子流。

2. 发明申请

US20150317994A1 HIGH BAND EXCITATION SIGNAL GENERATION 有权
标题翻译：高带激发信号产生
公开(公告)号：US20150317994A1
公开(公告)日：2015-11-05
申请号：US14265693
申请日：2014-04-30
申请人： QUALCOMM Incorporated
发明人： Pravin Kumar Ramadas , Daniel J. Sinder , Stephane Pierre Villette , Vivek Rajendran
IPC分类号： G10L19/08
CPC分类号： G10L19/08 , G10L19/24
摘要： A particular method includes determining, at a device, a voicing classification of an input signal. The input signal corresponds to an audio signal. The method also includes controlling an amount of an envelope of a representation of the input signal based on the voicing classification. The method further includes modulating a white noise signal based on the controlled amount of the envelope. The method also includes generating a high band excitation signal based on the modulated white noise signal.
摘要翻译：一种特定的方法包括在设备处确定输入信号的语音分类。输入信号对应于音频信号。该方法还包括基于语音分类来控制输入信号的表示的包络的量。该方法还包括基于信封的受控量来调制白噪声信号。该方法还包括基于调制的白噪声信号产生高频激励信号。

3. 发明授权

US09053702B2 Systems, methods, apparatus, and computer-readable media for bit allocation for redundant transmission 有权
标题翻译：用于冗余传输的比特分配的系统，方法，装置和计算机可读介质
公开(公告)号：US09053702B2
公开(公告)日：2015-06-09
申请号：US13719701
申请日：2012-12-19
申请人： Qualcomm Incorporated
发明人： Vivek Rajendran , Venkatesh Krishnan , Daniel J. Sinder
IPC分类号： G10L19/00 , G10L21/00 , G10L19/04 , G10L19/008 , H04L1/00 , H04L1/08 , G10L19/005 , G10L19/107 , G10L19/09
CPC分类号： G10L19/04 , G10L19/005 , G10L19/008 , G10L19/09 , G10L19/107 , H04L1/0009 , H04L1/0014 , H04L1/007 , H04L1/08
摘要： Compressibility-based reallocation of initial bit allocations for frames of an audio signal is described. Applications to redundancy-based retransmission of critical frames (e.g., for fixed-bit-rate modes of speech codec operation) are also described.
摘要翻译：描述了对音频信号的帧的初始位分配的基于压缩性的重新分配。还描述了用于关键帧冗余重传（例如，对于固定比特率模式的语音编解码器操作）的应用。

4. 发明授权

US10297263B2 High band excitation signal generation 有权
公开(公告)号：US10297263B2
公开(公告)日：2019-05-21
申请号：US15611706
申请日：2017-06-01
申请人： QUALCOMM Incorporated
发明人： Pravin Kumar Ramadas , Daniel J. Sinder , Stephane Pierre Villette , Vivek Rajendran
IPC分类号： G10L19/08 , G10L19/24
摘要： A method includes extracting a voicing classification parameter of an audio signal and determining a filter coefficient of a low pass filter based on the voicing classification parameter. The method also includes filtering a low-band portion of the audio signal to generate a low-band audio signal and controlling an amplitude of a temporal envelope of the low-band audio signal based on the filter coefficient. The method also includes modulating a white noise signal based on the amplitude of the temporal envelope to generate a modulated white noise signal and scaling the modulated white noise signal based on a noise gain to generate a scaled modulated white noise signal. The method also includes mixing a scaled version of the low-band audio signal with the scaled modulated white noise signal to generate a high-band excitation signal that is used to generate a decoded version of the audio signal.

5. 发明申请

US20140233404A1 APPLYING ERROR RESILIENCY BASED ON SPEED 有权
标题翻译：基于速度应用错误修复
公开(公告)号：US20140233404A1
公开(公告)日：2014-08-21
申请号：US13770687
申请日：2013-02-19
申请人： QUALCOMM INCORPORATED
发明人： Alireza Ryan Heidari , Daniel J. Sinder , Zheng Fang
IPC分类号： H04W4/02
CPC分类号： H04W4/027 , H04L1/0009
摘要： A method for applying error resiliency based on speed is disclosed. A speed of the wireless communication device is detected. Source-based error resiliency is dynamically applied to a signal based on the speed. The signal is sent on an uplink. In addition to the speed, the source-based error resiliency may be dynamically applied to the signal based on a characteristic of the signal.
摘要翻译：公开了一种基于速度应用错误弹性的方法。检测无线通信装置的速度。基于源的错误弹性基于速度动态地应用于信号。信号在上行链路上发送。除了速度之外，可以基于信号的特性将基于源的错误弹性动态地应用于信号。

6. 发明申请

US20130185062A1 SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR CRITICALITY THRESHOLD CONTROL 有权
标题翻译：系统，方法，设备和计算机可读介质的关键控制
公开(公告)号：US20130185062A1
公开(公告)日：2013-07-18
申请号：US13718797
申请日：2012-12-18
申请人： Qualcomm Incorporated
发明人： Venkatesh Krishnan , Daniel J. Sinder , Vivek Rajendran
IPC分类号： G10L19/04
CPC分类号： G10L19/04 , G10L19/005 , G10L19/008 , G10L19/09 , G10L19/107 , H04L1/0009 , H04L1/0014 , H04L1/007 , H04L1/08
摘要： Systems, methods, and apparatus as disclosed herein may be implemented to adjust criticality thresholds for speech frames, based on channel conditions. Such a threshold may be used to control retransmission frequency in response to changes in channel state.
摘要翻译：可以实现本文公开的系统，方法和装置，以基于信道条件来调整语音帧的临界阈值。这样的阈值可以用于响应于信道状态的变化来控制重发频率。

7. 发明授权

US10225814B2 Conference audio management 有权
公开(公告)号：US10225814B2
公开(公告)日：2019-03-05
申请号：US15083974
申请日：2016-03-29
申请人： QUALCOMM Incorporated
发明人： Venkatraman S. Atti , Daniel J. Sinder , Nikolai Leung , Vivek Rajendran
IPC分类号： H04M3/56 , H04W56/00 , H04L29/06 , H04L12/26 , H04S7/00 , H04R29/00 , H04W88/02 , H04W80/04
摘要： A method for managing audio during a conference includes receiving, at a first buffer of a mobile device, a first audio stream from a first device associated with a first participant of the conference. The method also includes receiving, at a second buffer of the mobile device, a second audio stream from a second device associated with a second participant of the conference. The method further includes generating a control signal at a delay controller of the mobile device. The control signal is provided to the first buffer and to the second buffer to synchronize first buffered audio that is output from the first buffer with second buffered audio that is output from the second buffer.

8. 发明授权

US09047863B2 Systems, methods, apparatus, and computer-readable media for criticality threshold control 有权
标题翻译：用于临界阈值控制的系统，方法，设备和计算机可读介质
公开(公告)号：US09047863B2
公开(公告)日：2015-06-02
申请号：US13718797
申请日：2012-12-18
申请人： Qualcomm Incorporated
发明人： Venkatesh Krishnan , Daniel J. Sinder , Vivek Rajendran
IPC分类号： G10L19/005 , G10L19/04 , G10L19/008 , H04L1/00 , H04L1/08 , G10L19/107 , G10L19/09
CPC分类号： G10L19/04 , G10L19/005 , G10L19/008 , G10L19/09 , G10L19/107 , H04L1/0009 , H04L1/0014 , H04L1/007 , H04L1/08
摘要： A method of audio signal processing is described. The method includes calculating a criticality measure based on information about a first frame of the audio signal. The method also includes calculating a threshold value based on information relating to a state of a transmission channel. The method further includes comparing the calculated criticality measure to the calculated threshold value. The method additionally includes deciding to transmit a redundant copy of the first frame based on a result of the comparison. The method also includes transmitting the redundant copy of the first frame with a second frame. The first frame precedes the second frame in the audio signal.
摘要翻译：描述音频信号处理的方法。该方法包括基于关于音频信号的第一帧的信息计算临界度度量。该方法还包括基于与传输信道的状态有关的信息来计算阈值。该方法还包括将计算的临界度测量值与所计算的阈值进行比较。该方法还包括基于比较的结果决定发送第一帧的冗余副本。该方法还包括用第二帧发送第一帧的冗余副本。第一帧在音频信号中的第二帧之前。

9. 发明申请

US20140233716A1 TELECONFERENCING USING STEGANOGRAPHICALLY-EMBEDDED AUDIO DATA 有权
标题翻译：使用STEGANOGRAPHICALLI嵌入式音频数据进行通信
公开(公告)号：US20140233716A1
公开(公告)日：2014-08-21
申请号：US13771957
申请日：2013-02-20
申请人： QUALCOMM INCORPORATED
发明人： Stephane Pierre Villette , Daniel J. Sinder
IPC分类号： H04M3/56
CPC分类号： H04M3/568 , G10L19/018
摘要： A multi-party control unit (MCU) generates, based on audio data streams that represent sounds associated terminal devices, a mixed audio data stream. In addition, the MCU modifies the mixed mono audio data to steganographically embed sub-streams that include representations of the mono audio data streams. A terminal device receives the modified mixed audio data stream. When the terminal device is configured for stereo playback, the terminal device performs an inverse steganographic process to extract, from the mixed audio data stream, the sub-streams. The terminal device generates and outputs multi-channel audio data based on the extracted sub-streams and the mixed audio data stream. When the terminal device is not configured for stereo playback, the terminal device outputs sound based on the mixed audio data stream without extracting the embedded sub-streams.
摘要翻译：多方控制单元（MCU）基于表示声音关联终端设备的音频数据流，生成混合音频数据流。此外，MCU将混合的单声道音频数据修改为隐写地嵌入包括单声道音频数据流的表示的子流。终端设备接收修改的混合音频数据流。当终端设备被配置为立体声回放时，终端设备执行反隐匿处理以从混合音频数据流中提取子流。终端设备基于所提取的子流和混合音频数据流生成并输出多声道音频数据。当终端设备未配置为立体声播放时，终端设备基于混合音频数据流输出声音，而不提取嵌入的子流。

10. 发明申请

US20170270942A1 HIGH BAND EXCITATION SIGNAL GENERATION 审中-公开
公开(公告)号：US20170270942A1
公开(公告)日：2017-09-21
申请号：US15611706
申请日：2017-06-01
申请人： QUALCOMM Incorporated
发明人： Pravin Kumar Ramadas , Daniel J. Sinder , Stephane Pierre Villette , Vivek Rajendran
IPC分类号： G10L19/08 , G10L19/24
CPC分类号： G10L19/08 , G10L19/24
摘要： A method includes extracting a voicing classification parameter of an audio signal and determining a filter coefficient of a low pass filter based on the voicing classification parameter. The method also includes filtering a low-band portion of the audio signal to generate a low-band audio signal and controlling an amplitude of a temporal envelope of the low-band audio signal based on the filter coefficient. The method also includes modulating a white noise signal based on the amplitude of the temporal envelope to generate a modulated white noise signal and scaling the modulated white noise signal based on a noise gain to generate a scaled modulated white noise signal. The method also includes mixing a scaled version of the low-band audio signal with the scaled modulated white noise signal to generate a high-band excitation signal that is used to generate a decoded version of the audio signal.

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