摘要:
An automatic switching system and method for determining and effecting an optimal video display mode based on the interaction among participants in a conference or discussion is disclosed. The system includes a timer which continuously monitors the duration of signals received from each of a number of endpoints. The system further includes a signal switching processor which compares the signal durations to predefined parameters which define various display mode switching thresholds. The system reacts to the conversational interaction of endpoint participants by automatically switching the display mode of all endpoints between single-window, single speaker presentation mode, and multiple-window, multiple speaker discussion mode.
摘要:
Various embodiments of a system and method for selecting a video input signal to send to remote endpoints in a videoconference are disclosed. The method may comprise simultaneously displaying a plurality of icons on a display device, where each icon displays a live version of a video input signal from a respective local video source. The icons are selectable to select a video input signal to send to the remote endpoints in the videoconference. In other words, by selecting a particular icon, a user can select the video input signal displayed by the icon as the video input signal to send to the remote endpoints.
摘要:
In various embodiments, a system may include a first conferencing system with a first speaker and a second speaker. The first conferencing system may be coupled to a second conferencing system and a third conferencing system. In some embodiments, audio from the second conferencing system may be reproduced through the first speaker, and audio from the third conferencing system may be reproduced through the second speaker. In some embodiments, audio from various participants at various conferencing systems may be reproduced on audio system components relative to the location of participants at the conferencing system. For example, audio from a first participant on the left side of a camera at a second conferencing system may be reproduced through left side speakers at the first conferencing system.
摘要:
System and method for controlling video display modes in a video conferencing system. An audio signal from each of a plurality of video conferencing system locations may be received. An accumulated amount of audio signal may be determined from each of one or more of the audio signals. Subsequently, a display mode of two or more possible display modes may be determined for at least one of the video conferencing system locations based on the determined accumulated audio signal. Determining the accumulated audio signal may comprise determining a signal metric for each of one or more of the audio signals using an integrated form of the signal. The method may include comparing accumulated amounts of audio signal from one or more audio signals with at least one accumulation threshold. The display mode may also be determined based on the comparison between the accumulated audio signal and at least one accumulation threshold.
摘要:
A system may be configured to: receive remote audio signals and corresponding spatial indicators from remote systems; generate output signals for local speakers based on the remote audio signals and the corresponding spatial indicators; supply a microphone input signal to a first echo canceller in a series of echo cancellers, where each echo canceller of the series corresponds to a position in a set of positions along a one-dimensional locus connecting the speakers; map each of the remote audio signals to a corresponding one of the positions based on the corresponding spatial indicator; for each position of the set of positions, combine any of the remote audio signals that map to that position in order to form a corresponding input signal for the corresponding echo canceller; transmit a resultant signal including at least an output of a last echo canceller of the series to the remote systems.
摘要:
A system and method for integrating a personal computer based presentation with a videoconferencing system. A coupling device includes a card, insertable into a PCMCIA slot of a laptop computer or like machine, which includes a cable coupled to the card at a first end and to a connector coupled at a second end. The card includes firmware for loading into RAM of the computer and software operable to execute code.
摘要:
A videoconferencing unit is provided which integrates several components of a videoconferencing system to facilitate system setup and operation. The videoconferencing unit comprises a generally planar base structure adapted to be removably supported on a top surface of a video display monitor, such as a television monitor. The base structure terminates forwardly in a lip member which engages a front surface of the video display monitor. A first set of microphones is located at the lower portions of the lip member, and a second set of microphones is located at the upper edge surface of a tower member extending upwardly from the rear portion of the base structure. The vertical offset between the two sets of microphones thus established enables differential signal analysis to locate sound sources. The lip member may also be provided with one or more transmitters for transmitting control signals to a cooperatively placed receiver on the video display monitor.
摘要:
A system and method are provided which utilize biometrics technology in a conference environment. A biometrics engine detects facial images of a user, generates biometrics of the detected facial images, and compares the generated biometrics with biometrics information of authorized users. If a match is found, then the user is authorized and is automatically logged into the conference network. Once logged in, conferences may be automatically established, the user may be tracked by at least one video sensor, user preferences may be automatically set, and/or conference content may be easily accessed and shared with remote conference participants.
摘要:
In some embodiments, the components of a videoconferencing system may be incorporated in a unitary housing. For example, an integrated videoconferencing system may include microphones to capture participant audio and a camera to capture participant video (along with corresponding audio processing capabilities) in a unitary housing. The unitary housing may also include speakers to produce audio from conference participants and a display to provide video of conference participants. The integrated videoconferencing system may include a codec for encoding and/or decoding). The integrated videoconferencing system may also perform other conference related functions. The integrated videoconferencing system may be used as a speakerphone (e.g., in audio only calls) and/or a videoconference system. The integrated videoconferencing system may also fold into a compact form for portability.
摘要:
A videoconferencing system may include a camera, microphones, speakers, and a codec. In some embodiments, the codec functionality may be incorporated in a set-top box (e.g., a cable box, a satellite box, or a gaming box). The codec functionality may also be split between different components of the videoconferencing system. The camera and speakers may be coupled to or placed around a display. The videoconferencing system may send/receive signals through a network coupled to the computer system. The various functions to support the videoconference (e.g., compression and decompression of video signals) may be performed by circuitry in the camera base, codec/set top box, and/or on the computer system. The computer system may be a laptop computer. In some embodiments, ported speakers may be used to maximize sound quality for the provided speaker size.