公开(公告)号：US12277949B2

公开(公告)日：2025-04-15

申请号：US18342025

申请日：2023-06-27

Applicant: PEXIP AS

Inventor： Knut Inge Hvidsten

IPC: G10L21/013 ,  H04L12/18

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.

公开(公告)号：US11838687B2

公开(公告)日：2023-12-05

申请号：US17675077

申请日：2022-02-18

Applicant: Pexip AS

Inventor： Eamonn Shaw

IPC: H04N7/14 ,  H04N7/15

CPC classification number: H04N7/152 ,  H04N7/147 ,  H04N7/157

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.

公开(公告)号：US20230156064A1

公开(公告)日：2023-05-18

申请号：US17989101

申请日：2022-11-17

Applicant: Pexip AS

Inventor： Håvard Graff ,  Tulio Beloqui ,  Knut Inge Hvidsten

IPC: H04L65/75 ,  H04L47/27 ,  H04L47/263 ,  H04L47/283

CPC classification number: H04L65/762 ,  H04L47/27 ,  H04L47/263 ,  H04L47/283

Abstract: A system and method of downspeeding a media stream transmitted over a communication link from a sender device to a receiving device.

公开(公告)号：US20210258179A1

公开(公告)日：2021-08-19

申请号：US17168411

申请日：2021-02-05

Applicant: Pexip AS

Inventor： Benjamin John Hockley

IPC: H04L12/18 ,  H04N7/15 ,  H04L9/06

Abstract: The present invention includes a method and a system providing balancing of work items required to be completed as a whole over the available computing systems in a video conference node cluster, in addition to providing sufficient redundancy among conference nodes by means of consistent hash functions.
Consistent hashing is based on mapping each object or work item to a point on a virtual circle. The system maps each available machine or node to many pseudo-randomly distributed points on the same circle.
The present invention can be used for example in monitoring calendar servers for scheduled video conferences and providing a user interface icon to endpoints participating in a scheduled video conference through which the endpoints enter the video conference, or monitoring dial-ins from an endpoint participating in a scheduled video conference and dialing out to the other endpoints participating in the scheduled video conference.

公开(公告)号：US11088860B1

公开(公告)日：2021-08-10

申请号：US17168411

申请日：2021-02-05

Applicant: Pexip AS

Inventor： Benjamin John Hockley

IPC: H04L12/18 ,  H04L9/06 ,  H04N7/15

Abstract: The present invention includes a method and a system providing balancing of work items required to be completed as a whole over the available computing systems in a video conference node cluster, in addition to providing sufficient redundancy among conference nodes by means of consistent hash functions.
Consistent hashing is based on mapping each object or work item to a point on a virtual circle. The system maps each available machine or node to many pseudo-randomly distributed points on the same circle.
The present invention can be used for example in monitoring calendar servers for scheduled video conferences and providing a user interface icon to endpoints participating in a scheduled video conference through which the endpoints enter the video conference, or monitoring dial-ins from an endpoint participating in a scheduled video conference and dialing out to the other endpoints participating in the scheduled video conference.

公开(公告)号：US20190199955A1

公开(公告)日：2019-06-27

申请号：US16153184

申请日：2018-10-05

Applicant: Pexip AS

Inventor： Håvard GRAFF

IPC: H04N5/44 ,  H04N7/025 ,  H04N7/15

CPC classification number: H04N5/4403 ,  G06F3/017 ,  G06F3/0304 ,  G06F3/04815 ,  G06F3/0482 ,  G06F3/167 ,  H04N7/025 ,  H04N7/152

Abstract: A control unit and a method for a video conferencing system, the method performed by a control unit in a video conferencing system during an ongoing video conference, comprising a plurality of endpoints, comprising receiving at least one input media stream from at least one endpoint, detecting a first pointer event in the at least one input media stream, providing a first graphical item associated with the first pointer event, encoding the first graphical item in an output media stream, transmitting the output media stream to the at least one endpoint, detecting a second pointer event in the at least one input media stream from the at least one endpoint, and perform an action associated with the second pointer event, where one of a group consisting of a first and second pointer event includes one of a group consisting of a light signal, a gesture, and a sound signal.

公开(公告)号：US20170295102A1

公开(公告)日：2017-10-12

申请号：US15485956

申请日：2017-04-12

Applicant: Pexip AS

Inventor： Gregory ADAMS ,  John Robert BASSETT ,  Nicolas CORMIER ,  Håvard GRAFF ,  Eoin Stuart MCLEOD

IPC: H04L12/803 ,  H04L29/06

CPC classification number: H04L47/125 ,  H04L12/1827 ,  H04L65/1069 ,  H04L65/403 ,  H04L65/608 ,  H04L65/80 ,  H04N7/152

Abstract: Load balancing in a multimedia conference is disclosed, involving one or more internal terminals (Terminal 3) and one or more internal nodes (Node B) separated from one or more external terminals (Terminal 1, Terminal 2) and one or more external nodes (Node A) by a firewall. Media data from at least one of said terminals received at at least a first one of said nodes are forwarded through the firewall to at least a second one of the nodes, and received media data at the at least a second one of said nodes are processed by the second one of the nodes. At a first event, reconfiguration is performed of said first one of said nodes to process received media data and of said second one of said nodes to forward received media data to said first one of said nodes. At a second event, loading is done of at least a part of said received media data being processed at the first one or second one of said nodes to at least a third one of said nodes.

公开(公告)号：US09407933B2

公开(公告)日：2016-08-02

申请号：US13968719

申请日：2013-08-16

Applicant: Pexip AS

Inventor： Lars Petter Endresen

IPC: H04N19/60 ,  H04N19/436 ,  H04N19/91 ,  H04N19/93

CPC classification number: H04N19/60 ,  H04N19/436 ,  H04N19/91 ,  H04N19/93

Abstract: A method and a decoding or coding device for calculating at least one of run and level representations of respective quantized transform coefficients representing pixel values in a block of a video picture inserted in a coefficient array is disclosed. The method and the decoding or coding device are adjusted to generate a bitmask of the quantized transform coefficients, respectively perform a look up of the 8 least significant bits and the 8 most significant bits of the bitmask in a look up table, patch the looked up lower part and upper part bytemap values and insert the bytes of the first bytemap array from index position 8 minus the number of non-zeros in the 8 least significant bits of the bitmask.

Abstract translation: 公开了一种方法和解码或编码装置，用于计算表示插入系数数组中的视频图像的块中的像素值的各个量化变换系数的运行和电平表示中的至少一个。 调整方法和解码或编码装置以产生量化变换系数的位掩码，分别在查找表中查找位掩码的8个最低有效位和8个最高有效位，修补查找 下部分和上部的地图值，并从索引位置8插入第一个bytemap数组的字节减去位掩码的8个最低有效位中的非零数。

公开(公告)号：US08976225B2

公开(公告)日：2015-03-10

申请号：US13945347

申请日：2013-07-18

Applicant: Pexip AS

Inventor： Giles Russell Chamberlin ,  Hani Mustafa Elsayed Abdelkader Hashim ,  Nicolas Jean Michel Cormier ,  John-Mark Bell ,  Eoin Stuart McLeod ,  Benjamin John Hockley

IPC: H04N7/15 ,  H04L12/18 ,  H04M3/56

CPC classification number: H04N7/152 ,  H04L12/1822 ,  H04M3/563 ,  H04M3/565 ,  H04M3/567 ,  H04M2201/50

Abstract: A method for managing media streams including at least video data and audio data in a multi-party video conference involving one or more groups of one or more nodes respectively receiving a media stream from each of a plurality of associated endpoints is provided. In each of the one or more nodes of each of the one or more groups, the loudest audio of the media streams received from the respective plurality of associated endpoints is determined. An indication of the volume of the determined loudest audio and an identification of the node is transmitted to a decision maker. The highest received volume and the associated identification is determined. The node of the identification is instructed to transmit the received media stream of the endpoint to one of: all nodes in the one or more groups and to a proxy.

Abstract translation: 提供了一种在多方视频会议中管理至少包括视频数据和音频数据的媒体流的方法，所述多方视频会议涉及分别从多个关联端点中的每一个接收媒体流的一个或多个节点的一个或多个组。 在一个或多个组中的每一个的一个或多个节点的每一个中，确定从相应的多个相关联的端点接收的媒体流的最大音频。 将确定的最大音频的音量和节点的标识的指示传送给决策者。 确定最高接收量和相关标识。 指示识别的节点将接收到的端点的媒体流发送到一个或多个组中的所有节点之一，并发送到代理。

公开(公告)号：US11909800B2

公开(公告)日：2024-02-20

申请号：US17989101

申请日：2022-11-17

Applicant: Pexip AS

Inventor： Håvard Graff ,  Tulio Beloqui ,  Knut Inge Hvidsten

IPC: H04L65/75 ,  H04L47/263 ,  H04L47/27 ,  H04L47/283

CPC classification number: H04L65/762 ,  H04L47/263 ,  H04L47/27 ,  H04L47/283

Abstract: A system and method of downspeeding a media stream transmitted over a communication link from a sender device to a receiving device.