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1. 发明申请

WO9807278A3 VIDEO ENCODER/DECODER 审中-公开
标题翻译：视频编码器/解码器
公开(公告)号：WO9807278A3
公开(公告)日：1998-05-14
申请号：PCT/US9713039
申请日：1997-08-06
申请人： 3COM CORP , PROCTOR JOHN J , BALDASSARI MARK M , RICHARDSON CRAIG H , HODGES CHRIS J , TRUONG KWAN K , SMITH DAVID L , DESJARDINS PHILIP A , KNIGHT THOMAS H
发明人： PROCTOR JOHN J , BALDASSARI MARK M , RICHARDSON CRAIG H , HODGES CHRIS J , TRUONG KWAN K , SMITH DAVID L , DESJARDINS PHILIP A , KNIGHT THOMAS H
IPC分类号： G06T9/00 , H04N7/28
CPC分类号： H04N19/94 , G06T9/008
摘要： A method and an apparatus for encoding an image signal. The apparatus includes an acquisition module disposed to receive the image signal. A first processor is coupled to the acquisition module. At least one encoder processor is coupled to the first processor. The at least one encoder processor produces an encoded image signal under control of the first processor. The method includes the steps of converting an input image signal to at least one encoder processor. The method further includes the step of applying, at the at least one encoder processor, a hierarchical vector quantization compression algorithm to the digitized image signal. At the next step, a resultant encoded bit stream generated by the application of the algorithm is collected. The method and apparatus of the present invention may be used in conjunction with an ordinary modem to transmit and/or receive audio, video sequences of still images.

2. 发明申请

WO1998007278A2 VIDEO ENCODER/DECODER 审中-公开
标题翻译：视频编码器/解码器
公开(公告)号：WO1998007278A2
公开(公告)日：1998-02-19
申请号：PCT/US1997013039
申请日：1997-08-06
申请人： 3COM CORPORATION , PROCTOR, John, J. , BALDASSARI, Mark, M. , RICHARDSON, Craig, H. , HODGES, Chris, J. , TRUONG, Kwan, K. , SMITH, David, L. , DESJARDINS, Philip, A. , KNIGHT, Thomas, H.
发明人： 3COM CORPORATION
IPC分类号： H04N07/28
CPC分类号： H04N19/94 , G06T9/008
摘要： A method and an apparatus for encoding an image signal. The apparatus includes an acquisition module disposed to receive the image signal. A first processor is coupled to the acquisition module. At least one encoder processor is coupled to the first processor. The at least one encoder processor produces an encoded image signal under control of the first processor. The method includes the steps of converting an input image signal to at least one encoder processor. The method further includes the step of applying, at the at least one encoder processor, a hierarchical vector quantization compression algorithm to the digitized image signal. At the next step, a resultant encoded bit stream generated by the application of the algorithm is collected. The method and apparatus of the present invention may be used in conjunction with an ordinary modem to transmit and/or receive audio, video sequences of still images.
摘要翻译：一种用于对图像信号进行编码的方法和装置。该装置包括被设置为接收图像信号的采集模块。第一处理器耦合到采集模块。至少一个编码器处理器耦合到第一处理器。所述至少一个编码器处理器在第一处理器的控制下产生编码图像信号。该方法包括将输入图像信号转换为至少一个编码器处理器的步骤。该方法还包括在至少一个编码器处理器上对数字化图像信号应用分层矢量量化压缩算法的步骤。在下一步骤中，收集通过算法应用产生的最终编码比特流。本发明的方法和装置可以与普通调制解调器一起使用以发送和/或接收静止图像的音频，视频序列。

3. 发明申请

WO2015191990A1 ACOUSTIC PERIMETER FOR REDUCING NOISE TRANSMITTED BY A COMMUNICATION DEVICE IN AN OPEN-PLAN ENVIRONMENT 审中-公开
标题翻译：用于减少通信设备在开放式计划环境中传输的噪声的声音周边
公开(公告)号：WO2015191990A1
公开(公告)日：2015-12-17
申请号：PCT/US2015/035536
申请日：2015-06-12
申请人： POLYCOM, INC. , TRUONG, Kwan, K. , CHU, Peter, L. , POTTS, Steven, L.
发明人： TRUONG, Kwan, K. , CHU, Peter, L. , POTTS, Steven, L.
IPC分类号： H04M9/08 , G10L21/02 , G10L21/0208
CPC分类号： H04R3/005 , G10L21/0208 , G10L2021/02165 , H04R27/00 , H04R2227/001 , H04R2410/05
摘要： The amount of far-field noise transmitted by a primary communication device in an open-plan office environment is reduced by defining an acoustic perimeter of reference microphones around the primary device. Reference microphones generate a reference audio input including far-field noise in the proximity of the primary device. The primary device generates a main audio input including the voice of the primary speaker as well as background noise. Reference audio input is compared to main audio input to identify the background noise portion of the main audio signal. A noise reduction algorithm suppresses the identified background noise in the main audio signal. The one or more reference microphones defining the acoustic perimeter may be included in separate microphone devices placed in proximity to the main desktop phone, microphones within other nearby desktop telephone devices, or a combination of both types of devices.
摘要翻译：在开放式办公环境中由主要通信设备发送的远场噪声的量通过在主设备周围定义参考麦克风的声学周长来减少。参考麦克风在主设备附近产生包括远场噪声的参考音频输入。主设备产生包括主扬声器的声音以及背景噪声的主音频输入。将参考音频输入与主音频输入进行比较，以识别主音频信号的背景噪声部分。噪声降低算法抑制主音频信号中识别的背景噪声。限定声学周界的一个或多个参考麦克风可以包括在放置在主桌面电话附近的单独的麦克风设备中，在其他附近的桌面电话设备内的麦克风，或两种类型的设备的组合。

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