公开(公告)号：US20170195686A1

公开(公告)日：2017-07-06

申请号：US15463387

申请日：2017-03-20

Applicant: Polycom, Inc.

Inventor： Sean Chen ,  David Wang

IPC: H04N19/513 ,  H04N19/105

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/523 ,  H04N19/533

Abstract: 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.

公开(公告)号：US09628793B1

公开(公告)日：2017-04-18

申请号：US14498010

申请日：2014-09-26

Applicant: Polycom, Inc.

Inventor： Sean Chen ,  David Wang

IPC: H04N19/63 ,  H04N19/523 ,  H04N19/583 ,  H04N19/51

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/523 ,  H04N19/533

Abstract: 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.

公开(公告)号：US09602771B2

公开(公告)日：2017-03-21

申请号：US14965469

申请日：2015-12-10

Applicant: Polycom, Inc.

Inventor： Mark Duckworth ,  Anat Levy ,  Jesse Coleman

IPC: H04N7/14 ,  H04N7/15

CPC classification number: H04N7/147 ,  H04N5/247 ,  H04N7/142 ,  H04N7/152

Abstract: A videoconferencing device that determines a spatial arrangement of the video streams output at a first endpoint based on a number of display devices being utilized at the first endpoint and a number of cameras being utilized at each of the one or more additional endpoints.

公开(公告)号：US09590694B2

公开(公告)日：2017-03-07

申请号：US13682012

申请日：2012-11-20

Applicant: Polycom, Inc.

Inventor： Jarrod M. Lumpkin

IPC: H03F99/00 ,  H04B3/02 ,  H03F3/217

CPC classification number: H04B3/02 ,  H03F3/217

Abstract: Audio transmitter circuitry is disclosed that is configurable into different modes by the user, and can output either a differential or single-ended audio signal on two signal wires. Depending on the mode, the transmitter deals with noise on the signal wires by adjusting the input resistance that such noise sees looking into the transmitter. If the transmitter is configured in a differential mode, the input resistance looking back into the transmitter from the perspective of the noise on both signal wires is relatively high. If the transmitter is configured in a single ended mode, the input resistance of noise looking back from the active signal wire into the transmitter is relatively low, to in effect ground such noise back into the transmitter, without significantly presenting such noise to the receiver.

Abstract translation: 公开了可由用户配置成不同模式的音频发射器电路，并且可以在两条信号线上输出差分或单端音频信号。 根据模式，发射机通过调整这种噪声看到发射机的输入电阻来处理信号线上的噪声。 如果变送器配置为差分模式，则从两个信号线上的噪声的角度看，返回到发射机的输入电阻相对较高。 如果发射机配置为单端模式，则从有源信号线回送到发射机中的噪声的输入电阻相对较低，从而实际上将这种噪声接地发射回发射机，而不会对接收机显着地呈现这种噪声。

公开(公告)号：US09544541B2

公开(公告)日：2017-01-10

申请号：US14673477

申请日：2015-03-30

Applicant: Polycom, Inc.

Inventor： Peter L. Chu ,  Yibo Liu

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

CPC classification number: H04N7/15 ,  G06F3/165 ,  H04M3/568 ,  H04N7/142

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，其被补偿在扬声器和麦克风的A / D和D / A转换器中使用的时钟的差异。

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

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

CPC classification number: H04N7/15 ,  G06F3/165 ,  H04M3/568 ,  H04N7/142

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。

公开(公告)号：US20160373697A1

公开(公告)日：2016-12-22

申请号：US15181132

申请日：2016-06-13

Applicant: Polycom, Inc.

Inventor： Uri Avni ,  Alon Klein ,  Danny Shnaps ,  Yoella Bourshan ,  Eyal Leviav ,  Noa Reiter

IPC: H04N7/15 ,  H04L29/06 ,  H04N7/14

CPC classification number: H04N7/152 ,  H04L65/403 ,  H04L65/605 ,  H04N7/147

Abstract: A technique allows delivering content in a videoconference among a plurality of conferees in multiple quality levels. Content distributed from a multipoint control unit that is connected to an endpoint that delivers the content to receiving endpoints may have two or more quality levels. The quality level can be adapted to the capabilities of the receiving endpoints and the current quality of the connection that is used to deliver the content toward the receiving endpoints. The quality level associated with an endpoint may change during a session dynamically, adapting the delivery mode to changes in the condition of the connection between the receiving endpoints and the multipoint control unit.

Abstract translation: 一种技术允许在多个质量级别的多个参与者之间在视频会议中传送内容。 从连接到将内容传送到接收端点的端点的多点控制单元分发的内容可以具有两个或更多个质量等级。 质量水平可以适应接收端点的能力和用于向接收端点传送内容的连接的当前质量。 与端点相关联的质量水平可以在会话期间动态地改变，使得递送模式适应接收端点和多点控制单元之间的连接状况的变化。

公开(公告)号：US09525651B2

公开(公告)日：2016-12-20

申请号：US14549850

申请日：2014-11-21

Applicant: Polycom, Inc.

Inventor： Edward Gonen ,  Guil Yedlin ,  Anupam Sahai ,  Shai Toren ,  Boris Rakhlin

IPC: G06F15/16 ,  H04L12/58 ,  H04L12/18 ,  H04L29/06

CPC classification number: H04L51/046 ,  H04L12/1818 ,  H04L29/06027 ,  H04L65/403 ,  H04L65/4038

Abstract: Multimedia communication systems and methods are disclosed. An exemplary system comprises a server adapted to communicate with two or more multimedia endpoints; and a MCU adapted to communicate with the at least one server and the multimedia endpoints, wherein the server contains a module for instructing the multimedia endpoints to call a dial number for the MCU to establish a multimedia conference in response to a requested list of multimedia endpoints received from one of the multimedia endpoints. An exemplary method for establishing a multimedia conference comprises receiving at a server from a first endpoint a requested list of second endpoints desired to participate in the multimedia session; reviewing at the server the status of the second endpoints; and if the status of a particular second endpoint is an available status, instructing at least some of the available second endpoints to call a dial number for a MCU to participate in the multimedia conference. A further exemplary method allows for a determination to be made whether a multipoint or point-to-point conference is required, and allows a user to leave a message for users who unavailable to participate in the conference.

Abstract translation: 公开了多媒体通信系统和方法。 示例性系统包括适于与两个或多个多媒体端点进行通信的服务器; 以及适于与所述至少一个服务器和所述多媒体端点进行通信的MCU，其中，所述服务器包含用于指示所述多媒体端点响应所请求的多媒体端点列表来呼叫所述MCU拨打号码以建立多媒体会议的模块 从多媒体端点之一接收。 用于建立多媒体会议的示例性方法包括：在服务器处从第一端点接收期望参与多媒体会话的第二端点的请求列表; 在服务器上检查第二个端点的状态; 并且如果特定的第二端点的状态是可用状态，则指示所述可用的第二端点中的至少一些可以呼叫用于MCU参与所述多媒体会议的拨号号码。 另外的示例性方法允许确定是否需要多点或点对点会议，并且允许用户对不可用于参加会议的用户留下消息。

公开(公告)号：US09478233B2

公开(公告)日：2016-10-25

申请号：US14209465

申请日：2014-03-13

Applicant: Polycom, Inc.

Inventor： Jeffrey C. Rodman

IPC: G10L15/04 ,  G10L25/78 ,  H04M3/56

CPC classification number: G10L25/78 ,  H04M3/568 ,  H04M2201/40 ,  H04M2203/252

Abstract: A conferencing system and method involves conducting a conference between endpoints. The conference can be a videoconference in which audio data and video data are exchanged or can be an audio-only conference. Audio of the conference is obtained from one of the endpoints, and speech is detected in the obtained audio. The detected speech is analyzed to determine that the detected speech constitutes a speech fragment, and an indicia indicative of the determined speech fragment is generated. For a videoconference, the indicia can be a visual cue to be added to video for the given endpoint when displayed at other endpoints. For an audio-only conference, the indicia can be an audio cue to be added to the audio of the conference at the other end points.

Abstract translation: 会议系统和方法涉及在端点之间进行会议。 会议可以是视频会议，其中音频数据和视频数据被交换或可以是仅音频会议。 从一个端点获得会议的音频，并且在获得的音频中检测到语音。 分析检测到的语音以确定检测到的语音构成语音片段，并且生成指示所确定的语音片段的标记。 对于视频会议，当在其他端点显示时，标记可以是为给定端点添加到视频中的视觉提示。 对于音频会议，标记可以是在其他端点添加到会议音频的音频提示。

公开(公告)号：US09379984B2

公开(公告)日：2016-06-28

申请号：US14459987

申请日：2014-08-14

Applicant: Polycom, Inc.

Inventor： Kirill Tsym

IPC: G06F15/16 ,  H04L12/803 ,  H04L29/08

CPC classification number: H04L65/403 ,  H04L47/125 ,  H04L65/1006 ,  H04L65/1009 ,  H04L65/1083 ,  H04L65/80 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1014 ,  H04L67/1029 ,  H04L67/1031 ,  H04L67/141

Abstract: 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 multipoint control unit (MCU) may therefore process multiple input data streams containing multi-media video conferencing information.

Abstract translation: 公开了一种称为负载平衡器模块（LBM）的逻辑模块，该模块侦听某个公共预定义端口号之一。 用于接收通信视频会议信令和控制协议的这些众所周知的端口此后被负载平衡并且多路复用到多个协议栈应用的实例。 通过跨多个应用实例平衡多媒体数据流，可以由单个互联网协议主机处理器来服务和处理多个多媒体数据流。 因此，多点控制单元（MCU）可以处理包含多媒体视频会议信息的多个输入数据流。