公开(公告)号：US09053697B2

公开(公告)日：2015-06-09

申请号：US13149714

申请日：2011-05-31

申请人： Hyun Jin Park ,  Erik Visser ,  Jongwon Shin ,  Kwokleung Chan ,  Samir K Gupta ,  Andre Gustavo P. Schevciw ,  Ren Li ,  Jeremy P. Toman

发明人： Hyun Jin Park ,  Erik Visser ,  Jongwon Shin ,  Kwokleung Chan ,  Samir K Gupta ,  Andre Gustavo P. Schevciw ,  Ren Li ,  Jeremy P. Toman

IPC分类号： G10K11/16 ,  H04B15/00 ,  G10K11/178 ,  G10L21/0208 ,  G10L21/0216

CPC分类号： G10K11/1782 ,  G10K11/178 ,  G10L21/0208 ,  G10L2021/02082 ,  G10L2021/02165 ,  H04R2460/01

摘要： Methods and apparatus for generating an anti-noise signal and equalizing a reproduced audio signal (e.g., a far-end telephone signal) are described, wherein the generating and the equalizing are both based on information from an acoustic error signal.

摘要翻译： 描述了用于产生抗噪声信号和均衡再现的音频信号（例如，远端电话信号）的方法和装置，其中生成和均衡均基于来自声学误差信号的信息。

公开(公告)号：US08548460B2

公开(公告)日：2013-10-01

申请号：US12904900

申请日：2010-10-14

申请人： Min Wang ,  Dai Yang ,  Vivek Rajendran ,  Ananthapadmanabhan Arasanipalai Kandhadai ,  Alireza R. Heidari ,  Jeremy P. Toman

发明人： Min Wang ,  Dai Yang ,  Vivek Rajendran ,  Ananthapadmanabhan Arasanipalai Kandhadai ,  Alireza R. Heidari ,  Jeremy P. Toman

IPC分类号： H04W4/00 ,  H04B1/38 ,  H04M3/42

CPC分类号： H04L65/1043 ,  H04L65/1069 ,  H04L65/601 ,  H04L69/24 ,  H04W76/20 ,  H04W88/181

摘要： After a call is established between two stations using a codec that has been negotiated during call setup, in-band signaling may be used between the two stations to change the codec that is to be used. The in-band signals are indicative that the station that is transmitting the in-band signals can operate with a second codec and are used to probe whether the receiving station can also operate with that second codec. If the receiving station detects and reacts to the in-band signals, then both stations change to communicate with the second codec. The second codec has compatible packet sizes of the deployed (originally negotiated) codec without any need of infrastructure upgrade and/or quality compromise to legacy phone users (i.e., stations that cannot operate with the second codec).

摘要翻译： 在使用在呼叫建立期间协商的编解码器的两个站之间建立呼叫之后，可以在两个站之间使用带内信令来改变要使用的编解码器。 带内信号指示正在发送带内信号的站可以用第二编解码器操作，并且用于探测接收站是否也可以与该第二编解码器一起操作。 如果接收站检测并对带内信号作出反应，则两台站改变以与第二编解码器进行通信。 第二编解码器具有部署的（最初协商的）编解码器的兼容分组大小，而不需要对传统电话用户（即，不能与第二编解码器一起操作的站）的基础架构升级和/或质量损害。

公开(公告)号：US20110293103A1

公开(公告)日：2011-12-01

申请号：US13149714

申请日：2011-05-31

申请人： Hyun Jin Park ,  Erik Visser ,  Jongwon Shin ,  Kwokleung Chan ,  Samir K. Gupta ,  Andre Gustavo P. Schevciw ,  Ren Li ,  Jeremy P. Toman

发明人： Hyun Jin Park ,  Erik Visser ,  Jongwon Shin ,  Kwokleung Chan ,  Samir K. Gupta ,  Andre Gustavo P. Schevciw ,  Ren Li ,  Jeremy P. Toman

IPC分类号： H03G3/20

CPC分类号： G10K11/1782 ,  G10K11/178 ,  G10L21/0208 ,  G10L2021/02082 ,  G10L2021/02165 ,  H04R2460/01

摘要： Methods and apparatus for generating an anti-noise signal and equalizing a reproduced audio signal (e.g., a far-end telephone signal) are described, wherein the generating and the equalizing are both based on information from an acoustic error signal.

摘要翻译： 描述了用于产生抗噪声信号和均衡再现的音频信号（例如，远端电话信号）的方法和装置，其中生成和均衡均基于来自声学误差信号的信息。

公开(公告)号：US20110196673A1

公开(公告)日：2011-08-11

申请号：US13014572

申请日：2011-01-26

申请人： Amit Sharma ,  Jeremy P. Toman ,  Hyun Jin Park ,  Sang-Uk Ryu

发明人： Amit Sharma ,  Jeremy P. Toman ,  Hyun Jin Park ,  Sang-Uk Ryu

IPC分类号： G10L11/04

CPC分类号： G10L19/005

摘要： An electronic device for reconstructing a lost packet in a Sub-Band Coding (SBC) decoder is described. The electronic device includes a processor and instructions stored in memory. The electronic device detects a lost packet, obtains a zero-input response of a synthesis filter bank and obtains a coarse pitch estimate. The electronic device also obtains a fine pitch estimate based on the zero-input response and the coarse pitch estimate. The electronic device selects a last pitch period based on the fine pitch estimate and uses samples from the last pitch period for the lost packet.

摘要翻译： 描述了用于重构子带编码（SBC）解码器中的丢失分组的电子设备。 电子设备包括处理器和存储在存储器中的指令。 电子设备检测丢失的分组，获得合成滤波器组的零输入响应并获得粗音调估计。 电子设备还基于零输入响应和粗调估计获得精细间距估计。 电子设备基于精细音调估计来选择最后音调周期，并对丢失分组使用来自最后音调周期的采样。

公开(公告)号：US20120263317A1

公开(公告)日：2012-10-18

申请号：US13444735

申请日：2012-04-11

申请人： Jongwon Shin ,  Erik Visser ,  Jeremy P. Toman

发明人： Jongwon Shin ,  Erik Visser ,  Jeremy P. Toman

IPC分类号： H04B15/00

CPC分类号： G10L21/0224 ,  G10L19/0204

摘要： Enhancement of audio quality (e.g., speech intelligibility) in a noisy environment, based on subband gain control using information from a noise reference, is described.

摘要翻译： 描述了基于使用来自噪声参考的信息的子带增益控制在噪声环境中提高音频质量（例如，语音清晰度）。

公开(公告)号：US20110294501A1

公开(公告)日：2011-12-01

申请号：US12904900

申请日：2010-10-14

申请人： Min Wang ,  Dai Yang ,  Vivek Rajendran ,  Ananthapadmanabhan Arasanipalai Kandhadai ,  Alireza R. Heidari ,  Jeremy P. Toman

发明人： Min Wang ,  Dai Yang ,  Vivek Rajendran ,  Ananthapadmanabhan Arasanipalai Kandhadai ,  Alireza R. Heidari ,  Jeremy P. Toman

IPC分类号： H04W4/00

CPC分类号： H04L65/1043 ,  H04L65/1069 ,  H04L65/601 ,  H04L69/24 ,  H04W76/20 ,  H04W88/181

摘要： After a call is established between two stations using a codec that has been negotiated during call setup, in-band signaling may be used between the two stations to change the codec that is to be used. The in-band signals are indicative that the station that is transmitting the in-band signals can operate with a second codec and are used to probe whether the receiving station can also operate with that second codec. If the receiving station detects and reacts to the in-band signals, then both stations change to communicate with the second codec. The second codec has compatible packet sizes of the deployed (originally negotiated) codec without any need of infrastructure upgrade and/or quality compromise to legacy phone users (i.e., stations that cannot operate with the second codec).

摘要翻译： 在使用在呼叫建立期间协商的编解码器的两个站之间建立呼叫之后，可以在两个站之间使用带内信令来改变要使用的编解码器。 带内信号指示正在发送带内信号的站可以用第二编解码器操作，并且用于探测接收站是否也可以与该第二编解码器一起操作。 如果接收站检测并对带内信号作出反应，则两台站改变以与第二编解码器进行通信。 第二编解码器具有部署的（最初协商的）编解码器的兼容分组大小，而不需要对传统电话用户（即，不能与第二编解码器一起操作的站）的基础架构升级和/或质量损害。