Abstract:
A High Speed Serial Bus connecting teleconference devices, such as video conference unit, speakerphone, external loudspeakers or microphones is disclosed. The disclosed embodiments enable the distributing and sharing of controls among the linked devices. They enable incremental upgrades or capacity increases of the teleconference system.
Abstract:
The present application discloses a method and apparatus for a multipoint video conferencing system that can offer a wide variety of layouts and the ability to support a large number of conferees. A received stream of NALs from a plurality of endpoints can be processed by an exemplary NAL Processor Module (NPM) and be arranged into a stream of NALs that are referred to in this disclosure as organized NALs (ONALs). Two or more streams of compressed video organized into ONALs can be received by an exemplary NAL Editor Module (NEM), wherein each stream was created from a video image that was generated at an endpoint participating in the conference. An exemplary NEM can comprise a compressed composed frame memory (CCFM) module. Each CCFM can be divided into segments according to the layout of the continuous presence (CP) image that is to be displayed by one or more receiving endpoints.
Abstract:
Use of a scalable audio codec to implement distributed mixing and/or sender bit rate regulation in a multipoint conference is disclosed. The scalable audio codec allows the audio signal from each endpoint to be split into one or more frequency bands and for the transform coefficients within such bands to be prioritized such that usable audio may be decoded from a subset of the entire signal. The subset may be created by omitting certain frequency bands and/or by omitting certain coefficients within the frequency bands. By providing various rules for each endpoint in a conference, the endpoint can determine the importance of its signal to the conference and can select an appropriate bit rate, thereby conserving bandwidth and/or processing power throughout the conference.
Abstract:
Systems and methods are disclosed to automatically rescheduling and optionally transferring audio/video conferences when a conference runs longer than its previously allocated time. The disclosed relocation process incorporates one or more of a plurality of input sources such as electronic calendars, face/voice recognition systems, proximity systems, enterprise maps, and/or resource databases to assist in schedule adjustments. For example, if it is determined a meeting is running long then an organizer of a second impacted meeting can be notified of the over-run and prompted for information. If the second meeting organizer is amenable to delay or reschedule, options are presented to the second meeting organizer Once a plan change is determined, changes in schedule or location are automatically propagated to resources and attendees scheduled for the second meeting. Also, when a conference must relocate, actions associated with relocating resources are automated and confidentiality concerns can be taken into account.
Abstract:
A videoconferencing system for enhanced telepresence employs a single wide aspect ratio high resolution camera for capturing video images of near end conference participants. Captured video image can be divided into adjacent portions, where video images corresponding to each portion is separately encoded and sent to a far end videoconferencing system to be displayed on adjacently placed display devices. Misalignment in displayed images at the far end can be mitigated by selecting portions that are non-overlapping and horizontally aligned. Number and size of the portions can be determined based on configuration information of the far end videoconferencing system.
Abstract:
A novel technique allows synchronizing a plurality of audio and video streams received at a receiving media relay endpoint via an intermediate node, such as a media relay multipoint control unit. The received streams were generated by a plurality of transmitting media relay endpoints and been relayed to the plurality of receiving media relay endpoints via the intermediate node, but are seen as being using a single time domain, in terms of wall clock and manipulated timestamps, while preserving the correct capture time.
Abstract:
A home videoconferencing system interfaces with traditional set-top boxes and typical home A/V equipment. The system includes a camera, a microphone, and a codec module. The module can couple to a modem connected to a television network and can couple to a display and a set-top box. Alternatively, the module can connect to a network for exchanging videoconference data and can connect between the set-top box and the display. The set-top box can connect to the television network on its own.
Abstract:
A videoconferencing system includes a touch screen display device and a videoconferencing unit. The display device displays video data for the videoconference and generates touch data based on user selections relative to the touch screen. The videoconferencing unit is operatively coupled to the touch screen device by a video connection and a data interface connection, for example. The unit establishes and conducts a videoconference with one or more endpoints via a network. The unit sends video data to the display device and receives touch data from the device. The received touch data is used to control operation of the videoconferencing system. The received touch data can be used to initiate a videoconference call, change an operating parameter, change orientation of a camera, initiate a picture-in-picture display, access a menu, access memory, change a source of video data, initiate a whiteboard display, and access a screen of a connected device.
Abstract:
Disclosed herein are methods and systems for providing continuous presence video stream in a cascading video conference, i.e., a video conference that is conducted over more than one MCU. A cascading continuous presence composition controller (CCCC) selects which endpoints from among all of the endpoints participating in the conference should be displayed in the layout, regardless of which endpoints are associated with which MCU. The CCCC can be resident on one of the MCUs, resident on a cascading conference server, or can be distributed among all of the MCUs involved in a cascading conference.
Abstract:
A method for efficiently accessing pertinent information retrieved from a videoconferencing system call log. System call logs typically contain a chronological list of raw information pertaining to inbound and outbound videoconferencing calls. The method for efficiently accessing this chronological information is performed using input from the user at an endpoint to correlate and sort for display the information required at the current time. Videoconferencing systems typically are shared use or community type devices and the method of this disclosure allows for more user friendly access to pertinent information. Auto population of a speed dial list or associating a smart tag with the retrieved information is another possible feature to aid the end user. This method will allow a business to more efficiently use a limited number of videoconferencing systems amongst diverse groups of users with diverse calling needs.