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1. 发明申请

WO2020154300A1 MINIMIZING ECHO DUE TO SPEAKER-TO-MICROPHONE COUPLING CHANGES IN AN ACOUSTIC ECHO CANCELER 审中-公开
公开(公告)号：WO2020154300A1
公开(公告)日：2020-07-30
申请号：PCT/US2020/014434
申请日：2020-01-21
申请人： POLYCOM, INC.
发明人： CHU, Peter L.
IPC分类号： G10L21/0208 , H04M9/08 , H04M3/00 , H04M3/56
摘要： An endpoint receives audio from a remote endpoint. A first signal corresponding to the audio is received at an adaptive filter, and a filtered signal is generated. First audio is emitted at a loudspeaker based on the first signal. A microphone collects second audio which is based on the first audio. The microphone signal emits a signal based on the second audio. The filtered signal is subtracted from microphone signal to generate an adapted signal, the adapted signal having an energy level. The adapted signal is then transmitted to a double-talk detector, the double-talk detector configured to allow transmission of the adapted signal to the remote endpoint when the energy level of the adapted signal exceeds an energy threshold. The degree of cross-correlation between the first signal and the adapted signal is determined (iteratively). If the cross-correlation exceeds a cross-correlation threshold, the energy threshold of the double-talk detector is raised.

2. 发明申请

WO2020103078A1 JOINT USE OF FACE, MOTION, AND UPPER-BODY DETECTION IN GROUP FRAMING 审中-公开
公开(公告)号：WO2020103078A1
公开(公告)日：2020-05-28
申请号：PCT/CN2018/116923
申请日：2018-11-22
申请人： POLYCOM, INC. , WANG, Tianran
发明人： WANG, Tianran , HE, Wenxue , QIN, Lidan , XU, Hai
IPC分类号： H04N7/15
摘要： A videoconferencing endpoint is described that uses a combination of face detection, motion detection, and upper body detection for selecting participants of a videoconference for group framing. Motion detection is used to remove fake faces as well as to detect motion in regions around detected faces during postprocessing. Upper body detection is used in conjunction with the motion detection in postprocessing to allow saving faces that have been initially detected by face detection for group framing even if the participant has turned away from the camera, allowing the endpoint to keep tracking the participant's region better than would be possible based only on an unstable result coming from face detection.

3. 发明申请

WO2003075130A3 SYSTEM AND METHOD FOR COMMUNICATION CHANNEL AND DEVICE CONTROL VIA AN EXISTING AUDIO CHANNEL 审中-公开
公开(公告)号：WO2003075130A3
公开(公告)日：2003-09-12
申请号：PCT/US2003/006736
申请日：2003-03-03
申请人： POLYCOM, INC.
发明人： RODMAN, Jeffrey , DRELL, David
IPC分类号： H04L12/66
摘要： A system and method for communication channel and device control via an existing audio channel (110). A combined communication signal is received from a communication device (102, 104) comprising an audio signal and a modulated carrier signal via an audio channel. The audio signal is separated from the carrier signal. Digital data is extracted from the carrier signal. Device control is performed utilizing the extracted digital data.

4. 发明申请

WO2003049418A3 METHOD AND AN APPARATUS FOR MIXING COMPRESSED VIDEO 审中-公开
公开(公告)号：WO2003049418A3
公开(公告)日：2003-06-12
申请号：PCT/US2002/038562
申请日：2002-12-04
申请人： POLYCOM, INC.
发明人： YONA, Ilan , ELBAZ, Moshe
IPC分类号： H04N7/12
摘要： A system for controlling a conference that takes input streams (140) from a variety of sources, at least some of the streams having a relatively low-resolution, and composes the input streams into a single output stream (150) of a relatively high-resolution. In doing the conversion the system takes intra Macro Blocks (MBs) of the input stream and produces inter output frames. As part of the conversion process, the system converts the Groups Of Blocks (GOBs) that have GOB headers into slices.

5. 发明申请

WO2017053714A1 COMPACT AUDIO OUTPUT ELECTRONIC DEVICE WITH HEAT DISSIPATION 审中-公开
标题翻译：具有散热功能的紧凑型音频输出电子设备
公开(公告)号：WO2017053714A1
公开(公告)日：2017-03-30
申请号：PCT/US2016/053326
申请日：2016-09-23
申请人： POLYCOM, INC.
发明人： FOLETTA, Wayne
IPC分类号： H04R1/02 , H04R1/22 , H04R1/28
CPC分类号： H04R1/02 , H04R1/2826 , H04R9/022 , H04R2201/028
摘要： A compact audio output electronic device that includes a compact enclosure that has a cover and a base and supports a speaker. At least one heat emitting device is located within the enclosure. A bent bass port is located within the enclosure for enhancing bass frequency. The bent bass port has an external vent end and an opposite internal vent end, and a curved body therebetween. The external vent end is located at the cover and the internal vent end is positioned proximate the heat emitting device. A bidirectional air flow path is defined through the bent bass port such that heat from the heat emitting device exits at the external vent end of the bent bass port, and air flows from the internal vent end of the bent bass port toward the heat emitting device, thereby providing cooling to the at least one heat emitting device.
摘要翻译：一种紧凑的音频输出电子设备，其包括具有盖和基座并且支撑扬声器的紧凑的外壳。至少一个发热装置位于外壳内。外壳内设有一个弯曲的低音端口，用于提高低音频率。弯曲的低音端口具有外部通气端和相对的内部通风端，以及其间的弯曲体。外部排气口位于盖子上，内部通风口端部位于靠近发热装置的位置。通过弯曲的低音端口限定双向空气流动路径，使得来自发热装置的热量在弯曲低音端口的外部通风端处离开，并且空气从弯曲的低音端口的内部通风端流向发热装置从而向至少一个发热装置提供冷却。

6. 发明申请

WO2012065081A1 SCALABLE AUDIO IN A MULTI-POINT ENVIRONMENT 审中-公开
标题翻译：可扩展音频在多点环境中
公开(公告)号：WO2012065081A1
公开(公告)日：2012-05-18
申请号：PCT/US2011/060398
申请日：2011-11-11
申请人： POLYCOM, INC. , FENG, Jinwei , CHU, Peter , BOTZKO, Stephen
发明人： FENG, Jinwei , CHU, Peter , BOTZKO, Stephen
IPC分类号： G06F15/16
CPC分类号： G10L19/002 , G10L19/0212 , G10L19/24 , G10L25/18 , H04M3/568 , H04M7/0072
摘要： Use of a scalable audio codec to implement distributed mixing and/or sender bit rate regulation in a multipoint conference is disclosed. The scalable audio codec allows the audio signal from each endpoint to be split into one or more frequency bands and for the transform coefficients within such bands to be prioritized such that usable audio may be decoded from a subset of the entire signal. The subset may be created by omitting certain frequency bands and/or by omitting certain coefficients within the frequency bands. By providing various rules for each endpoint in a conference, the endpoint can determine the importance of its signal to the conference and can select an appropriate bit rate, thereby conserving bandwidth and/or processing power throughout the conference.
摘要翻译：公开了使用可扩展音频编解码器来实现多点会议中的分布式混合和/或发送器比特率调节。可扩展音频编解码器允许来自每个端点的音频信号被分成一个或多个频带，并且为了使这些频带内的变换系数被优先化，使得可以从整个信号的子集中解码可用的音频。可以通过省略某些频带和/或通过省略频带内的某些系数来创建该子集。通过为会议中的每个端点提供各种规则，端点可以确定其信号到会议的重要性，并且可以选择适当的比特率，从而节省整个会议的带宽和/或处理能力。

7. 发明申请

WO2010104772A1 METHOD AND APPARATUS FOR CONTROLLING THE STATE OF A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于控制通信系统状态的方法和装置
公开(公告)号：WO2010104772A1
公开(公告)日：2010-09-16
申请号：PCT/US2010/026482
申请日：2010-03-08
申请人： POLYCOM, INC. , HARDER, Rob , BEDROSSIAN, Ara , MACLEAR, Geraldine , MIKULAJ, Vladimir , XIN, Yu , BECKER, Ted , ELIAS, Eric, David , RODMAN, Jeffrey, C.
发明人： HARDER, Rob , BEDROSSIAN, Ara , MACLEAR, Geraldine , MIKULAJ, Vladimir , XIN, Yu , BECKER, Ted , ELIAS, Eric, David , RODMAN, Jeffrey, C.
IPC分类号： G06F1/00
CPC分类号： H04N21/443 , G06F1/3206 , G06F1/3215 , G06F1/325 , H04N7/142 , H04N7/147 , H04N21/42202 , H04N21/42203 , H04N21/4223 , H04N21/4436
摘要： A networked conferencing device includes at least one speaker, a display and a plurality of environmental sensors such as cameras, microphones, light level sensors, thermal sensors and motion sensors. The conferencing device receives environmental information from the sensors and processes this information to identify qualified events. The identified qualified events are then used to determine a next powered state for the conferencing device. If the next powered state is different than a current powered state, then the conferencing system transitions to the next powered state.
摘要翻译：网络会议设备包括至少一个扬声器，显示器和多个环境传感器，例如照相机，麦克风，光级传感器，热传感器和运动传感器。会议设备从传感器接收环境信息并处理该信息以识别合格的事件。所识别的合格事件然后用于确定会议设备的下一个供电状态。如果下一个供电状态与当前供电状态不同，则会议系统转换到下一个供电状态。

8. 发明申请

WO2009049163A1 CONFIGURING VIDEOCONFERENCING SYSTEMS TO CREATE VIDEO SESSIONS WITH REALISTIC PRESENCE 审中-公开
标题翻译：配置视频系统创建视频会议与现实存在
公开(公告)号：WO2009049163A1
公开(公告)日：2009-04-16
申请号：PCT/US2008/079523
申请日：2008-10-10
申请人： POLYCOM, INC. , SALEH, Youssef , PARIPALLY, Gopal , DUCKWORTH, Mark , CHEN, Kathy
发明人： SALEH, Youssef , PARIPALLY, Gopal , DUCKWORTH, Mark , CHEN, Kathy
IPC分类号： H04N7/14
CPC分类号： H04N7/142 , H04N7/148 , H04N7/15
摘要： Methods and apparatuses for automating the interface of different videoconferencing systems are disclosed. In brief, according to one or more embodiments according to the invention, a first method comprises, upon connection of two videoconferencing systems, information containing the number and type of screens in each system is exchanged, and this information is used to set up custom camera and/or display settings in each local system.
摘要翻译：公开了用于使不同视频会议系统的接口自动化的方法和装置。简而言之，根据本发明的一个或多个实施例，第一种方法包括：在连接两个视频会议系统时，交换包含每个系统中的屏幕的数量和类型的信息，并且该信息用于设置定制相机和/或显示每个本地系统中的设置。

9. 发明申请

WO2008134482A1 DE-BLOCKING FILTER ARRANGEMENTS 审中-公开
标题翻译：阻塞滤波器安排
公开(公告)号：WO2008134482A1
公开(公告)日：2008-11-06
申请号：PCT/US2008/061522
申请日：2008-04-25
申请人： POLYCOM, INC. , SAMPEDRO, Jesus , SHAH, Athar , BOTZKO, Stephen
发明人： SAMPEDRO, Jesus , SHAH, Athar , BOTZKO, Stephen
IPC分类号： H04N7/12
CPC分类号： H04N19/439 , H04N19/117 , H04N19/136 , H04N19/174 , H04N19/176 , H04N19/194 , H04N19/46 , H04N19/61 , H04N19/82 , H04N19/85 , H04N19/86
摘要： Described herein is a de-blocking filter arrangement for video encoders and decoders that include a de-blocking loop filter. In some embodiments, the post filter may be configured to process all edges that were not processed by the loop filter. In other embodiments the encoder may specify which edges should be processed by the loop filter and/or by the post filter. Also disclosed herein is a de¬ blocking filter arrangement for video encoders and decoders that include first and second de-blocking loop filters. The second loop filter is configured to operate only on slice boundaries that were not processed by the first loop filter, e.g., for one of the reasons described above.
摘要翻译：这里描述的是用于视频编码器和解码器的解块滤波器装置，其包括解块环路滤波器。在一些实施例中，后置滤波器可以被配置为处理未被环路滤波器处理的所有边缘。在其他实施例中，编码器可以指定应由环路滤波器和/或后置滤波器处理哪些边缘。本文还公开了一种用于视频编码器和解码器的去块滤波器装置，其包括第一和第二解块环路滤波器。第二环路滤波器被配置为仅对未由第一环路滤波器处理的片段边界进行操作，例如由于上述原因之一。

10. 发明申请

WO03061167B1 DIGITAL LINKING OF MULTIPLE MICROPHONE SYSTEMS 审中-公开
标题翻译：数字麦克风系统的数字连接
公开(公告)号：WO03061167B1
公开(公告)日：2004-05-27
申请号：PCT/US0301974
申请日：2003-01-21
申请人： POLYCOM INC
发明人： POCINO MICHAEL , TRUONG KWAN
IPC分类号： H04M3/56 , H04R3/00 , H04M3/24
CPC分类号： H04M3/562 , H04M3/561 , H04M3/568 , H04R3/005
摘要： Systems and methods for digitally linking multiple microphones and managing microphone signals are provided. Embodiments provide for digitally linking of multiple auto-mixer systems (102-108) where a large number of microphones (134-148) are required. In large auto-mixer systems, microphone input channels may be distributed among many devices. Rather than transmitting these signals individually to a central processing device for the auto-mixer, it is most efficient to distribute the audio signal processing functions of the automatic microphone mixer among multiple devices in an audio conferencing system.
摘要翻译：提供了用于数字连接多个麦克风和管理麦克风信号的系统和方法。实施例提供了需要大量麦克风（134-148）的多个自动混合器系统（102-108）的数字连接。在大型自动混音器系统中，麦克风输入通道可以分布在许多设备中。将这些信号单独地发送到用于自动混频器的中央处理装置，而不是在音频会议系统中的多个装置之间分配自动麦克风混频器的音频信号处理功能是最有效的。

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