公开(公告)号：US10798137B2

公开(公告)日：2020-10-06

申请号：US15282840

申请日：2016-09-30

Applicant: Polycom, Inc.

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

IPC: G06F3/0482 ,  H04L29/06 ,  G06F3/0481 ,  G06F8/38 ,  G06F3/0484

Abstract: 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.

公开(公告)号：USD894876S1

公开(公告)日：2020-09-01

申请号：US29687057

申请日：2019-04-10

Applicant: Polycom, Inc.

Designer： Hector Rodriguez ,  Anthony Martin Duys ,  Yanlin Zhu ,  Nathan Yang ,  Samuel Alexander Moon ,  Nathan Evan Careless ,  Adam Thomas Prather

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

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

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.

公开(公告)号：US10686873B2

公开(公告)日：2020-06-16

申请号：US15221371

申请日：2016-07-27

Applicant: Polycom, Inc.

Inventor： Deep Subhash Pai ,  Dragan Ignjatic

IPC: H04L29/08 ,  H04L29/06 ,  H04W84/18

Abstract: A technique is disclosed for making transitions between mesh and bridge topology seamless to the end user of the video session, without a significant gap between the audio and video experience of the video session when the transition occurs. In addition, a function provides a way for determining whether a trigger event for such a transition has occurred.

公开(公告)号：US10686845B2

公开(公告)日：2020-06-16

申请号：US15939019

申请日：2018-03-28

Applicant: Polycom, Inc.

Inventor： Eric Nylander ,  George David

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

Abstract: SIP INVITE messages received at a load balancer are returned as SIP Redirect messages which are addressed to an access director and include additional information, such as a tracing token and a cryptographic token. When the access director receives the redirected SIP INVITE, the access director analyzes the included cryptographic token and passes the SIP INVITE if the cryptographic token is correct. This provides the needed access control function to allow the access directors to be directly accessed by the endpoints, rather than funneling all communications through the load balancer.

公开(公告)号：US10681309B2

公开(公告)日：2020-06-09

申请号：US15939501

申请日：2018-03-29

Applicant: Polycom, Inc.

Inventor： Jeffrey Adams ,  Eric Nylander ,  Damian Diaz ,  Chad Alexander ,  Joanne Kubischta ,  George David ,  Matt Parker ,  Jozef Saniga ,  Ryan Hermanson

IPC: H04N7/15 ,  H04L29/06 ,  H04N19/40 ,  H04L29/08

Abstract: A non-Skype multipoint control unit (MCU) is configured to operate differently for handling incoming streams from endpoints and outgoing streams from a Skype multipoint control unit. When passing incoming streams from non-Skype endpoints to a Skype conference, the non-Skype MCU acts as a gateway, passing the streams to Skype MCU as if they were coming from Skype endpoints. When receiving outgoing streams from Skype MCU, the non-Skype MCU acts as an MCU, transcoding, compositing, and scaling streams into continuous presence layouts for delivery to the non-Skype endpoints. Thus, non-Skype endpoints can participate in Skype conferences as if they were Skype endpoints, allowing a better user experience for both Skype endpoints and non-Skype endpoints.

公开(公告)号：US10609330B2

公开(公告)日：2020-03-31

申请号：US16037984

申请日：2018-07-17

Applicant: Polycom, Inc.

Inventor： Anthony Martin Duys ,  Alain Nimri ,  Stephen Schaefer ,  Shu Gao ,  Glenn G. George ,  Alvin Okunami

IPC: H04N7/14 ,  H04N7/15 ,  H04N5/232

Abstract: Systems for videoconferencing are designed for where people are seated around a video conferencing system. The systems include a camera so the far site can see the local participants and the systems include displays that show the far site. The displays are properly aligned with the cameras so that when people at the far site view the displayed images of the near site, it looks like they have eye contact with the near site. Obtaining the alignments of the camera and the displays to provide this apparent eye contact result requires meeting a series of different constraints relating to the various sizes and angles of the components and the locations of the participants.

公开(公告)号：US10555080B2

公开(公告)日：2020-02-04

申请号：US16376904

申请日：2019-04-05

Applicant: Polycom, Inc.

Inventor： Kwan K. Truong ,  Peter L. Chu ,  Steven L. Potts ,  Eric Elias

IPC: H04R3/00 ,  H04R27/00 ,  G10L21/0216

Abstract: The amount of far-field noise transmitted by a primary communication device in an open-plan office environment is reduced by defining an acoustic perimeter of reference microphones around the primary device. Reference microphones generate a reference audio input including far-field noise in the proximity of the primary device. The primary device generates a main audio input including the voice of the primary speaker as well as background noise. Reference audio input is compared to main audio input to identify the background noise portion of the main audio signal. A noise reduction algorithm suppresses the identified background noise in the main audio signal. The one or more reference microphones defining the acoustic perimeter may be included in separate microphone devices placed in proximity to the main desktop phone, microphones within other nearby desktop telephone devices, or a combination of both types of devices.

公开(公告)号：US20190394458A1

公开(公告)日：2019-12-26

申请号：US16017842

申请日：2018-06-25

Applicant: Polycom, Inc.

Inventor： Jian Wang ,  Yong Yan ,  Kui Zhang

IPC: H04N19/105 ,  H04N19/159 ,  H04N7/15 ,  H04N19/142 ,  H04N19/172

Abstract: A video encoding method eliminates the need for back channel feedback by using long-term reference frames for recovering data transmission errors. A videoconferencing endpoint captures image data and designates a first frame as a long term reference (LTR) frame. Subsequent intra frames us the LTR frame for reference. When a new LTR frame is designated, subsequent frames use the newly designated LTR frame for reference only after it is determined that the newly designated LTR frame is fully operational to serve in that role.

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

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

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.