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629 条记录 (耗时 0.036 秒)

    Natural language processing while sound sensor is muted
    3.
    发明授权
    Natural language processing while sound sensor is muted 有权

    公开(公告)号：US11189275B2

    公开(公告)日：2021-11-30

    申请号：US16170327

    申请日：2018-10-25

    申请人： Polycom, Inc.

    发明人： Subramanyam Irukuvajhula ,  Ravi Kiran Nalla

    IPC分类号： G10L15/22 ,  G10L15/08 ,  H04L29/06 ,  G06F3/16 ,  H04M3/56

    摘要： A method includes generating first audio data based on sound detected by a sound sensor at a first time. The method further includes transmitting, via one or more communication interfaces, the first audio data to another device during a communication session based on a determination that the sound sensor is unmuted with respect to the communication session at the first time. The method further includes generating second audio data based on sound detected by the sound sensor at a second time. The method further includes refraining from transmitting the second audio data to the other device during the communication session based on a determination that the sound sensor is muted with respect to the communication session at the second time. The method further includes initiating a natural language processing operation on the second audio data based on detecting a wake phrase in the second audio data.

    Collaboratively controlling display of information across multiple displays
    4.
    发明授权
    Collaboratively controlling display of information across multiple displays 有权

    公开(公告)号：US11178196B2

    公开(公告)日：2021-11-16

    申请号：US16948121

    申请日：2020-09-03

    申请人： Polycom, Inc.

    发明人： Alain Elon Nimri ,  Junqing Shao ,  Shu Gao ,  Rob Murphy ,  Stephen Schaefer

    IPC分类号： H04L29/06 ,  G06F3/0481 ,  G06F8/38 ,  G06F3/0484

    摘要： Systems and methods for collaboratively controlling the display of information across multiple displays is disclosed. A plurality of electronic devices linked to a plurality of co-located display devices are accessed. At least one of the plurality of electronic devices is a master electronic device. Different users can select and transfer content elements from the set displayed on the master display device to the remainder of display devices, such that the selected and transferred content elements advance in order across the remainder of display devices. Users can select individual content elements from a device under their control for display by one or more display devices without the need to transfer an entire document or file from which the content element is taken. Once a content element is so displayed, other currently displayed content elements are advanced in a logical manner, or removed from display.

    Advanced audio feedback reduction utilizing adaptive filters and nonlinear processing
    6.
    发明授权
    Advanced audio feedback reduction utilizing adaptive filters and nonlinear processing 有权

    公开(公告)号：US10938992B1

    公开(公告)日：2021-03-02

    申请号：US16404468

    申请日：2019-05-06

    申请人： Polycom, Inc.

    发明人： Kwan Truong ,  Peter L. Chu

    IPC分类号： H04M3/56 ,  G10L21/0208 ,  H03H21/00 ,  H04R29/00 ,  G06F3/16

    摘要： Traditional audio feedback elimination systems may attempt to reduce the effect of the audio feedback by simply scaling down the audio volume of the signal frequencies that are prone to howling. Other traditional feedback elimination systems may also employ adaptive notch filtering to detect and “notch” the so-called “singing” or “howling” frequencies as they occur in real-time. Such devices may typically have several knobs and buttons needing tuning, for example: the number of adaptive parametric equalizers (PEQs) versus fixed PEQs; attack and decay timers; and/or PEQ bandwidth. Rather than removing the singing frequencies with PEQs, the devices described herein attempt to holistically model the feedback audio and then remove the entire feedback signal. Two advantages of the devices described herein are: 1.) the system can operate at a much larger loop-gain (and hence with a much higher loudspeaker volume); and 2) setup is greatly simplified (i.e., no tuning knobs or buttons).

    Pairing Devices in Conference Using Ultrasonic Beacon and Subsequent Control Thereof
    7.
    发明申请
    Pairing Devices in Conference Using Ultrasonic Beacon and Subsequent Control Thereof 有权

    公开(公告)号：US20210037210A1

    公开(公告)日：2021-02-04

    申请号：US16931169

    申请日：2020-07-16

    申请人： Polycom, Inc.

    发明人： Peter L. Chu ,  Yibo Liu

    IPC分类号： H04N7/15 ,  H04N7/14 ,  H04M3/56 ,  G06F3/16

    摘要： 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.

    Motion estimation
    9.
    发明授权
    Motion estimation 有权

    公开(公告)号：US10757438B2

    公开(公告)日：2020-08-25

    申请号：US15463387

    申请日：2017-03-20

    申请人： Polycom, Inc.

    发明人： Sean Chen ,  David Wang

    IPC分类号： H04N19/513 ,  H04N19/533 ,  H04N19/523 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182

    摘要： A technique of motion estimation in video compression is described, the technique including: determining, in one or more reference frames of a video picture, the best full-pixel motion vector F for a block in a current frame of the video picture, wherein m and n are signed numbers and integer multiples of the distance between two adjacent full-pixels; selecting the best half-pixel motion vector candidates from a set of half-pixel motion vectors based on the best full-pixel motion vector; determining the best half-pixel motion vector H; selecting the best quarter-pixel motion vector candidates from a set of quarter-pixel motion vectors based on the best full-pixel motion vector and the best half-pixel motion vector; determining the best quarter-pixel motion vector Q; and determining the best motion vector for the block as BMV.

    Method and system for dispatching received sessions between a plurality of instances of an application using the same IP port
    10.
    发明授权
    Method and system for dispatching received sessions between a plurality of instances of an application using the same IP port 有权

    公开(公告)号：US10609096B2

    公开(公告)日：2020-03-31

    申请号：US15962666

    申请日：2018-04-25

    申请人： Polycom, Inc.

    发明人： Kirill Tsym

    IPC分类号： H04L29/06 ,  H04L29/08 ,  H04L12/803

    摘要： A logical module, referred as Load Balancer Module (LBM), is disclosed which listens to one of certain common predefined port number. These well-known ports for receiving communication video conference signaling and control protocols is thereafter load balanced and multi-plexed to a number of instances of protocol stack applications. By balancing the multi-media data stream across a multitude of application instances multiple multi-media data streams may be serviced and processed by a single internet protocol host processor. A mutipoint control unit (MCU) may therefore process multiple input data streams containing multi-media video conferencing information.