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公开(公告)号：US09237238B2
公开(公告)日：2016-01-12
申请号：US14339244
申请日：2014-07-23
Applicant: Polycom, Inc.
Inventor： Peter L. Chu , Yibo Liu , Uri Avni , Ami Noy
CPC classification number: H04M3/568 , H04M3/56 , H04M2201/14
Abstract: A conference apparatus reduces or eliminates noise in audio for endpoints in a conference. Endpoints in the conference are designated as a primary talker and as secondary talkers. Audio for the endpoints is processed with speech detectors to characterize the audio as speech or not and to determine energy levels of the audio. As the audio is written to buffers and then read from the buffers, decisions for the gain settings of faders for read audio of the endpoints being combined in the speech selective mix. In addition, the conference apparatus can mitigate the effects of a possible speech collision that may occur during the conference between endpoints.
Abstract translation: 会议设备减少或消除会议中端点的音频噪声。 会议的终点被指定为主要讲话者，也被指定为次要讲话者。 使用语音检测器处理端点的音频，以将音频表征为语音，并且确定音频的能级。 当音频被写入缓冲器然后从缓冲器读取时，用于在语音选择性混合中组合端点的读取音频的推子的增益设置的决定。 此外，会议装置可以减轻可能在端点之间的会议期间可能出现的语音冲突的影响。
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22.发明申请Pairing Devices in Conference Using Ultrasonic Beacon amd Subsequent Control Thereof 有权配对设备在会议中使用超声波信标及其后续控制公开(公告)号：US20150208033A1
公开(公告)日：2015-07-23
申请号：US14673477
申请日：2015-03-30
Applicant: Polycom, Inc.
Inventor： Peter L. Chu , Yibo Liu
Abstract: A videoconferencing system has a videoconferencing unit that use portable devices as peripherals for the system. The portable devices obtain near-end audio and send the audio to the videoconferencing unit via a wireless connection. In turn, the videoconferencing unit sends the near-end audio from the loudest portable device along with near-end video to the far-end. The portable devices can control the videoconferencing unit and can initially establish the videoconference by connecting with the far-end and then transferring operations to the videoconferencing unit. To deal with acoustic coupling between the unit's loudspeaker and the portable device's microphone, the unit uses an echo canceller that is compensated for differences in the clocks used in the ND and D/A converters of the loudspeaker and microphone.
Abstract translation: 视频会议系统具有视频会议单元，其使用便携式设备作为系统的外围设备。 便携式设备获得近端音频，并通过无线连接将音频发送到视频会议单元。 反过来，视频会议单元将最接近便携式设备的近端音频和近端视频一起发送到远端。 便携式设备可以控制视频会议单元，并且可以通过与远端连接然后将操作传送到视频会议单元来最初建立视频会议。 为了处理单元的扬声器和便携式设备的麦克风之间的声耦合，该单元使用回波消除器来补偿扬声器和麦克风的ND和D / A转换器中使用的时钟的差异。
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公开(公告)号：US11343469B2
公开(公告)日：2022-05-24
申请号：US17084200
申请日：2020-10-29
Applicant: Polycom, Inc.
Inventor： Peter L. Chu , Yibo Liu
Abstract: A videoconferencing system has a videoconferencing unit that use portable devices as peripherals for the system. The portable devices obtain near-end audio and send the audio to the videoconferencing unit via a wireless connection. In turn, the videoconferencing unit sends the near-end audio from the loudest portable device along with near-end video to the far-end. The portable devices can control the videoconferencing unit and can initially establish the videoconference by connecting with the far-end and then transferring operations to the videoconferencing unit. To deal with acoustic coupling between the unit's loudspeaker and the portable device's microphone, the unit uses an echo canceller that is compensated for differences in the clocks used in the A/D and D/A converters of the loudspeaker and microphone.
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Patent Agency Ranking
公开(公告)号：US20190174068A1
公开(公告)日：2019-06-06
申请号：US16227815
申请日：2018-12-20
Applicant: Polycom, Inc.
Inventor： Xiangdong Wang , Yibo Liu , Jinwei Feng , Edmund Thompson , Peter Chu
CPC classification number: H04N5/23296 , G06K9/00234 , G06K9/00255 , G06K9/00369 , G06T7/20 , G06T2207/10016 , G06T2207/30201 , H04N5/2258 , H04N5/23219 , H04N5/23254 , H04N5/23299 , H04N5/247 , H04N7/147 , H04N7/15 , H04N7/152
Abstract: A videoconference apparatus and method coordinates a stationary view obtained with a stationary camera to an adjustable view obtained with an adjustable camera. The stationary camera can be a web camera, while the adjustable camera can be a pan-tilt-zoom camera. As the stationary camera obtains video, participants are detected and localized by establishing a static perimeter around a participant in which no motion is detected. Thereafter, if no motion is detected in the perimeter, any personage objects such as head, face, or shoulders which are detected in the region bounded by the perimeter are determined to correspond to the participant.
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公开(公告)号：US20190007623A1
公开(公告)日：2019-01-03
申请号：US15640371
申请日：2017-06-30
Applicant: Polycom, Inc.
Inventor： Xiangdong Wang , Yibo Liu , Jinwei Feng , Edmund Thompson , Peter Chu
Abstract: A videoconference apparatus and method coordinates a stationary view obtained with a stationary camera to an adjustable view obtained with an adjustable camera. The stationary camera can be a web camera, while the adjustable camera can be a pan-tilt-zoom camera. As the stationary camera obtains video, participants are detected and localized by establishing a static perimeter around a participant in which no motion is detected. Thereafter, if no motion is detected in the perimeter, any personage objects such as head, face, or shoulders which are detected in the region bounded by the perimeter are determined to correspond to the participant.
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公开(公告)号：US10003765B2
公开(公告)日：2018-06-19
申请号：US15808685
申请日：2017-11-09
Applicant: Polycom, Inc.
Inventor： Edmund Thompson , Yibo Liu
CPC classification number: H04N5/57 , G06K9/00255 , H04N7/152
Abstract: A videoconferencing system includes at least one processor and at least one camera. The endpoint can capture one or more images with the camera. The system can locate a region of interest within an image, such as the area surrounding the face of a person participating in a videoconference. If the face area or other region of interest is too dark, the system can brighten the region to make it more visible. The system can determine whether the face is too dark by comparing the captured image to previously captured images, or comparing the luma values and other data making up the face to predetermined values, or both. The system can check the second image for over-brightening or saturation, and further adjust the image as needed. The brightening of the face area is done in such a way that the brightened region is unobtrusive to the viewer.
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27.发明授权Pairing devices in conference using ultrasonic beacon and subsequent connection transfer 有权配对设备在会议中使用超声波信标和随后的连接传输公开(公告)号：US09538136B2
公开(公告)日：2017-01-03
申请号：US14673491
申请日：2015-03-30
Applicant: Polycom, Inc.
Inventor： Peter L. Chu , Yibo Liu
Abstract: A videoconferencing system has a videoconferencing unit that use portable devices as peripherals for the system. The portable devices obtain near-end audio and send the audio to the videoconferencing unit via a wireless connection. In turn, the videoconferencing unit sends the near-end audio from the loudest portable device along with near-end video to the far-end. The portable devices can control the videoconferencing unit and can initially establish the videoconference by connecting with the far-end and then transferring operations to the videoconferencing unit. To deal with acoustic coupling between the unit's loudspeaker and the portable device's microphone, the unit uses an echo canceller that is compensated for differences in the clocks used in the A/D and D/A converters of the loudspeaker and microphone.
Abstract translation: 视频会议系统具有视频会议单元，其使用便携式设备作为系统的外围设备。 便携式设备获得近端音频，并通过无线连接将音频发送到视频会议单元。 反过来，视频会议单元将最接近便携式设备的近端音频和近端视频一起发送到远端。 便携式设备可以控制视频会议单元，并且可以通过与远端连接然后将操作传送到视频会议单元来最初建立视频会议。 为了处理单元的扬声器和便携式设备的麦克风之间的声耦合，该单元使用回波消除器，其补偿扬声器和麦克风的A / D和D / A转换器中使用的时钟的差异。
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28.发明申请Pairing Devices in Conference Using Ultrasonic Beacon and Subsequent Content Sharing 有权配对设备在会议中使用超声波信标和随后的内容共享公开(公告)号：US20150208034A1
公开(公告)日：2015-07-23
申请号：US14673482
申请日：2015-03-30
Applicant: Polycom, Inc.
Inventor： Peter L. Chu , Yibo Liu
Abstract: A videoconferencing system has a videoconferencing unit that use portable devices as peripherals for the system. The portable devices obtain near-end audio and send the audio to the videoconferencing unit via a wireless connection. In turn, the videoconferencing unit sends the near-end audio from the loudest portable device along with near-end video to the far-end. The portable devices can control the videoconferencing unit and can initially establish the videoconference by connecting with the far-end and then transferring operations to the videoconferencing unit. To deal with acoustic coupling between the unit's loudspeaker and the portable device's microphone, the unit uses an echo canceller that is compensated for differences in the clocks used in the ND and D/A converters of the loudspeaker and microphone.
Abstract translation: 视频会议系统具有视频会议单元，其使用便携式设备作为系统的外围设备。 便携式设备获得近端音频，并通过无线连接将音频发送到视频会议单元。 反过来，视频会议单元将最接近便携式设备的近端音频和近端视频一起发送到远端。 便携式设备可以控制视频会议单元，并且可以通过与远端连接然后将操作传送到视频会议单元来最初建立视频会议。 为了处理单元的扬声器和便携式设备的麦克风之间的声耦合，该单元使用回波消除器来补偿扬声器和麦克风的ND和D / A转换器中使用的时钟的差异。
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