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11.发明授权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：US09538135B2
公开(公告)日：2017-01-03
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 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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公开(公告)号：US20140072143A1
公开(公告)日：2014-03-13
申请号：US13865008
申请日：2013-04-17
Applicant: Polycom, Inc.
Inventor： Yibo Liu , Peter L. Chu , Jeff Rodman
IPC: G06F3/16
Abstract: Methods and systems for cancelation of table noise in a speaker system used for video or audio conferencing are disclosed. Table noise is cancelled in one embodiment by providing a signal or a message whenever a key is depressed on a keyboard or a mouse is clicked. When the key depression signal or message is received, the system evaluates whether speech is occurring. If speech is not occurring, then the microphone in the system is muted. However, if speech is occurring, the microphone is not muted for a period of time to allow the speech to be transmitted to the far end. This allows the conference to be continued in the presence of keyboard sounds if speech is occurring at the same time but also silences the keyboard sounds if speech is not occurring.
Abstract translation: 公开了用于视频或音频会议的扬声器系统中用于消除表噪声的方法和系统。 在一个实施例中，通过在键盘上按下键或点击鼠标时提供信号或消息来消除表噪声。 当接收到按键抑制信号或消息时，系统评估是否发生语音。 如果没有发生语音，则系统中的麦克风静音。 然而，如果发生语音，则麦克风不会被静音一段时间，以允许语音被发送到远端。 这样就可以在出现语音的同时存在键盘声音的情况下继续进行会议，但是如果没有发生语音，则会使键盘声音静音。
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公开(公告)号：US11153531B2
公开(公告)日：2021-10-19
申请号：US16931169
申请日：2020-07-16
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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公开(公告)号：US20210051300A1
公开(公告)日：2021-02-18
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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公开(公告)号：US10757364B2
公开(公告)日：2020-08-25
申请号：US16378557
申请日：2019-04-08
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：US20190373217A1
公开(公告)日：2019-12-05
申请号：US16378557
申请日：2019-04-08
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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公开(公告)号：US20180359447A1
公开(公告)日：2018-12-13
申请号：US16105894
申请日：2018-08-20
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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公开(公告)号：US20180091760A1
公开(公告)日：2018-03-29
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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公开(公告)号：US09843761B2
公开(公告)日：2017-12-12
申请号：US15017262
申请日：2016-02-05
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 modified 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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公开(公告)号：US20170302886A1
公开(公告)日：2017-10-19
申请号：US15395492
申请日：2016-12-30
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.
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