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公开(公告)号：US12137053B2
公开(公告)日：2024-11-05
申请号：US17989138
申请日：2022-11-17
Applicant: Pexip AS
Inventor： Håvard Graff , Tulio Beloqui , Knut Inge Hvidsten
IPC: H04L47/2416 , H04L47/11 , H04L47/283
Abstract: A system and method for determining congestion of a communication link transmitting a media stream over the communication link from a sender device to a receiving device.
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公开(公告)号：US11824915B2
公开(公告)日：2023-11-21
申请号：US17519064
申请日：2021-11-04
Applicant: Pexip AS
Inventor： Mikhail Fludkov
Abstract: A system and method for streaming a video conference in a multi-point videoconferencing system includes video conferencing terminals in communication with a multipoint conferencing node (MCN), a streaming server in communication with the MCN and media stream viewers in communication with the streaming server.
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3.发明公开公开(公告)号：US20230171299A1
公开(公告)日：2023-06-01
申请号：US17989120
申请日：2022-11-17
Applicant: Pexip AS
Inventor： Håvard Graff , Tulio Beloqui
IPC: H04L65/75 , H04L47/2416
CPC classification number: H04L65/75 , H04L47/2416
Abstract: A system, method and computer program of upspeeding a media stream transmitted over a communication link from a sender device to a receiving device.
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公开(公告)号：US20140247320A1
公开(公告)日：2014-09-04
申请号：US14047270
申请日：2013-10-07
Applicant: PEXIP AS
CPC classification number: H04N7/157 , G06T3/40 , H04L65/607 , H04N5/23245 , H04N7/142 , H04N7/15 , H04N7/152
Abstract: A method and a device providing one virtual endpoint dedicated to serve one particular real endpoint, and the virtual endpoint is typically installed on a server in the same local network as the associated real endpoint, where an MCU or a fraction of a distributed MCCJ also is installed. In the upstream direction, the virtual endpoint includes at least an upstream decoder, a scaling unit and an upstream encoder. In the downstream direction, the virtual endpoint includes at least a number of decoders, a composing unit and a downstream encoder.
Abstract translation: 提供专用于服务于一个特定实际端点的一个虚拟端点的方法和设备，并且虚拟端点通常安装在与相关联的实际端点相同的本地网络中的服务器上，其中MCU或分布式MCCJ的一部分也是 已安装。 在上游方向，虚拟端点至少包括上游解码器，缩放单元和上游编码器。 在下行方向，虚拟端点包括至少多个解码器，组合单元和下游编码器。
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公开(公告)号：US12015875B2
公开(公告)日：2024-06-18
申请号：US17551339
申请日：2021-12-15
Applicant: Pexip AS
Inventor： Håvard Graff , Tulio Beloqui
CPC classification number: H04N7/152 , G10L19/0017 , H04L12/1827 , H04L65/65 , H04L65/70
Abstract: A real time audio multi-point videoconferencing system comprising at least two videoconferencing endpoints in communication with a multipoint control unit, and a method of providing the real time audio. The method comprising capturing input lossless digital audio streams on each of the at least two videoconferencing endpoints, transmitting the input lossless digital audio streams from each of the at least two videoconferencing endpoints to the MCU using a frame size in the range 0.25 ms-3 ms, mixing, using the MCU, the input lossless digital audio streams into a plurality of output lossless digital audio streams, transmitting a different one of the plurality of output lossless digital audio streams to each of the at least two videoconferencing endpoints using a frame size in the range 0.25 ms-3 ms, and playback the plurality of output lossless digital audio streams on each of the at least two videoconferencing endpoints.
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Patent Agency Ranking
公开(公告)号：US20240005936A1
公开(公告)日：2024-01-04
申请号：US18342025
申请日：2023-06-27
Applicant: PEXIP AS
Inventor： Knut Inge Hvidsten
IPC: G10L21/013 , H04L12/18
CPC classification number: G10L21/013 , H04L12/1831 , G10L2021/0135
Abstract: A method and audio processing device for voice anonymization in an audio- or videoconferencing session. The method comprises receiving a plurality of input audio samples comprising speech, calculating a frequency spectrum of each the plurality of input audio samples, calculating a smoothed spectral magnitude envelope of a first of the plurality of frequency spectrums to determine a plurality of formant features of the speech, each of the plurality of formant features being located at different frequencies in the frequency spectrum, determining one random scaling factor for the audio- or videoconferencing session, determining, based on the one random scaling factor, a voice anonymization function shifting the formant location of at least one of the plurality of formants, and applying the voice anonymization function on the frequency spectrum of each the subsequent plurality of input audio samples in the audio- or videoconferencing session.
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公开(公告)号：US20230005469A1
公开(公告)日：2023-01-05
申请号：US17852548
申请日：2022-06-29
Applicant: PEXIP AS
Inventor： Anna Kim , Eamonn Shaw
IPC: G10L15/06 , G10L25/57 , G10L15/02 , G10L25/84 , G10L21/0232 , G10L21/0224
Abstract: A method of speech detection and speech enhancement in a speech detection and speech enhancement unit of Multipoint Conferencing Node (MCN) and a method of training the same. The method comprising receiving input audio segments, and determining an acoustic environment based on input audio auxiliary information, extracting T-F-domain features from the received input audio segments, determining if each of the received input audio segments is speech by inputting the T-F domain features into a speech detection classifier trained for the determined acoustic environment, determining, when one of the received input audio segments is speech, if the received audio segment is noisy speech by inputting the T-F domain features into a noise classifier using a statistical generative model representing the probability distributions of the T-F domain features of noisy speech trained for the determined acoustic environment, and applying a noise reduction mask on the received input audio segments according to the determination of the received audio segment is noisy speech
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8.发明授权公开(公告)号：US11538169B2
公开(公告)日：2022-12-27
申请号：US17349252
申请日：2021-06-16
Applicant: Pexip AS
Inventor： Håvard Graff
Abstract: The present invention relates to an image processing device and a method of framing changes and movements in a video image divided into N×N blocks of pixel positions. The method comprises calculating a first bitmap of the video image by a DCT transform on each of the N×N blocks of pixel positions, assigning a first binary value to the pixel positions of the N×N blocks when more than an amount of change, and a second binary value to the pixel positions of the N×N blocks when less than an amount of change. Calculating a third bitmap by an OR operation between a number of bitmaps representing past time frames of the video image, calculating a fourth bitmap by performing a dilation process of the third bitmap representing the current time frame of the video image, and creating one or more frames identifying area of changes and movements in the video image based on detecting BLOBs (Binary Large Objects) in the fourth bitmaps.
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9.发明申请公开(公告)号：US20220272301A1
公开(公告)日：2022-08-25
申请号：US17675077
申请日：2022-02-18
Applicant: Pexip AS
Inventor： Eamonn Shaw
Abstract: A multi-point videoconferencing system includes video conferencing terminals in communication with a multipoint conferencing node (MCN). A method includes defining at least a first virtual studio and a second virtual studio, each of the at least first and second virtual studios having a policy for each of a set of the tags; initiating a first multi-point videoconferencing session according to the first virtual studio, such that each of the video conferencing terminals in the first multi-point videoconferencing session is connected to the MCN according to the first virtual studio policy of at least one tag of the video conferencing terminal; and reconfiguring, upon switching to the second virtual studio, the first multi-point videoconferencing session according to the second virtual studio, such that each of the videoconferencing terminals in the first multi-point videoconferencing session is connected to the MCN according to the second virtual studio policy for at least one tag.
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公开(公告)号：US20220201252A1
公开(公告)日：2022-06-23
申请号：US17551339
申请日：2021-12-15
Applicant: Pexip AS
Inventor： Håvard Graff , Tulio Beloqui
Abstract: A real time audio multi-point videoconferencing system comprising at least two videoconferencing endpoints in communication with a multipoint control unit, and a method of providing the real time audio. The method comprising capturing input lossless digital audio streams on each of the at least two videoconferencing endpoints, transmitting the input lossless digital audio streams from each of the at least two videoconferencing endpoints to the MCU using a frame size in the range 0.25 ms-3 ms, mixing, using the MCU, the input lossless digital audio streams into a plurality of output lossless digital audio streams, transmitting a different one of the plurality of output lossless digital audio streams to each of the at least two videoconferencing endpoints using a frame size in the range 0.25 ms-3 ms, and playback the plurality of output lossless digital audio streams on each of the at least two videoconferencing endpoints.
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