Patent application number | Description | Published |
20080225735 | REDUCING EFFECTS OF PACKET LOSS IN VIDEO TRANSMISSIONS - An error correction system determines a level of error correction protection to apply to a frame of video data to be transmitted by a sending endpoint to a receiving endpoint based on the predicted impact of packet loss as well as the importance of the frame based on inter-frame dependencies, frame size, packet loss probability, historical packet loss pattern, central processing unit (CPU) load, and available network bandwidth. At the receiving endpoint, when packet loss is detected for a particular frame, the receiving endpoint will attempt to recover the frame using protection packets received along with the video data. | 09-18-2008 |
20080316362 | MECHANISMS TO CONCEAL REAL TIME VIDEO ARTIFACTS CAUSED BY FRAME LOSS - The claimed subject matter provides systems and/or methods that facilitate describing, communicating, utilizing, etc. a frame dependency structure in connection with real time video communication. For example, a protocol can be employed to communicate the dependency structure from a sender to a receiver. Moreover, a mechanism on a receiver side can detect frame(s) that will be rendered with artifacts if displayed due to previous frame loss; this mechanism can leverage receiver side knowledge concerning the dependency structure of the of the frames. | 12-25-2008 |
20090003309 | CAPABILITY OR ROLE-BASED ROUTING - The claimed subject matter provides a system and/or a method that facilitates enhancing incoming data communication connectivity within a network. An analyzer component can evaluate a portion of an incoming data communication targeted for a network to identify a context associated with the data communication. A transfer component can direct the incoming data communication to a cluster within the network based at least in part upon the identified context, wherein the cluster includes a physical entity with pre-existing knowledge of the identified context. | 01-01-2009 |
20090003569 | VIRTUAL CONTACT IDENTIFIER - The claimed subject matter provides a system and/or a method that facilitates enhancing connectivity associated with data communications. An interface can receive a portion of communication state data, wherein the communication state data is related to at least one of a data communication mode and a user context state. A routing component can evaluate the portion of communication state data to identify an optimized data communication mode, wherein the optimized data communication mode is dynamically linked to a virtual contact identifier. Moreover, the routing component can automatically and seamlessly employ an optimized communication session utilizing the dynamically identified optimized data communication mode based upon an activation of the virtual contact identifier. | 01-01-2009 |
20090006660 | AGGREGATION OF DEVICES FOR A MULTIMEDIA COMMUNICATION SESSION - A system that facilitates aggregation of devices for a multimedia communication session (e.g., voice, video, audio, graphics) is disclosed. In particular, the innovation can automatically separate a multimedia input into individual streams thereafter facilitating the selection of appropriate devices for which to render the input so as to maintain the multimedia communication experience. Logic is provided to assist in the selection the devices from a network of user-available devices. | 01-01-2009 |
20090213206 | Aggregation of Video Receiving Capabilities - Video receiving capabilities of participants and source capabilities are compared and conference capabilities for providing different resolutions, frame rates, bit rate, and number of streams are determined by maintaining a conference receiving capability list updated as number and capability of participants' changes. Preferred receiving capabilities of participants are also taken into account in determining conference characteristics based on comparison with allowed capabilities. | 08-27-2009 |
20090231415 | Multiple Video Stream Capability Negotiation - Video send and receive capabilities of participants are determined by the respective machines determining available combinations, as well as preferences for the receivers. Receiver capabilities are forwarded to the source for computation of negotiated video capabilities through a logic intersection of the determined capabilities based on desired number of streams and resolutions. If a resolution of a send capability exists within the receive capability, the highest frame and/or bit rate may be selected for transmission. | 09-17-2009 |
20100329461 | AUTOMATIC DETECTION OF WIRELESS NETWORK TYPE - A system and method for facilitating automatic detection of a type of wireless network is provided. In accordance with an aspect of the present invention, wireless network client(s) can automatically detect the “type” of a network (e.g., method of authentication and encryption) without requiring input from the user. For example, unencrypted network, WEP encrypted net work requiring a WEP key, WPA encrypted network requiring a pre-shared key, an IEEE 802.1x enabled net work supporting WPA anchor an IEEE 802.1x enabled network not supporting WPA. In accordance with an aspect of the present invention, a wireless network detection system having a connection component and a detection component is provided. The connection component facilitates connection of a client system to at least one of a plurality of wireless networks The detection component identities a type of an available wireless network. Identification can be based for example, upon information received in an information element and/or iterative probing of the wireless network beacon. | 12-30-2010 |
20110179107 | Parking and Un-Parking of Conversations in Multiple Modalities - A park request is received from a first computing system. The park request is a request to park a conversation between a user of the first computing system and a user of a second computing system. The park request conforms to a protocol that supports parking and unparking of conversations having a first modality and conversations having a second modality. Furthermore, an unpark request is received from a third computing system. The unpark request is a request to unpark the conversation. Referral information is sent to the third computing system. The referral information enables the third computing system to establish a communication session to carry the conversation. | 07-21-2011 |
20110282985 | NETWORK AND INTERFACE SELECTION ON A COMPUTING DEVICE CAPABLE OF ESTABLISHING CONNECTIONS VIA MULTIPLE NETWORK COMMUNICATIONS MEDIA - A system and method for carrying out network and interface selections across multiple media is disclosed. The disclosed system facilitates automated network interface configuration decision-making that spans a set of networks supporting communications via differing media. A set of media specific modules associated with differing communications media acquire network interface status/capabilities information. A rules engine thereafter applies a designated network selection rule(s) to the acquired network interface status/capabilities information, and any other appropriate parameters attributable to either an interface or network, to select one or more networks and interfaces with which to establish/maintain a connection. | 11-17-2011 |
20110304686 | UNIFIED COMMUNICATION BASED MULTI-SCREEN VIDEO SYSTEM - A multiple screen telepresence style video conferencing experience is provided employing generic hardware and intelligent software, which may be based on existing enhanced communication systems such as unified communication systems. Through a component based approach, the system can be deployed in any conference room, assembled on the spot by an untrained user, flexible to accommodate any number of screens. | 12-15-2011 |
20120154516 | AGGREGATION OF VIDEO RECEIVING CAPABILITIES - Video receiving capabilities of participants and source capabilities are compared and conference capabilities for providing different resolutions, frame rates, bit rate, and number of streams are determined by maintaining a conference receiving capability list updated as number and capability of participants' changes. Preferred receiving capabilities of participants are also taken into account in determining conference characteristics based on comparison with allowed capabilities. | 06-21-2012 |
20120176469 | MULTIPLE VIDEO STREAM CAPABILITY NEGOTIATION - Video send and receive capabilities of participants are determined by the respective machines determining available combinations, as well as preferences for the receivers. Receiver capabilities are forwarded to the source for computation of negotiated video capabilities through a logic intersection of the determined capabilities based on desired number of streams and resolutions. If a resolution of a send capability exists within the receive capability, the highest frame and/or bit rate may be selected for transmission. | 07-12-2012 |
20130003948 | PROVIDING CONTEXTUAL INFORMATION WITH A VOICEMAIL MESSAGE - Aspects of the present invention are directed at obtaining contextual information with a voicemail message. In accordance with one embodiment, a method is provided that obtains additional contextual information that is not obtained automatically when a voicemail message is received. More specifically, the method includes automatically obtaining a first set of contextual information from a client associated with the caller when the caller is transferred to a voicemail system. Then a determination is made regarding whether the callee requests that additional contextual information be obtained. If the callee requests that additional contextual information be obtained, the requested information is obtained from a third-party service or by prompting the caller. | 01-03-2013 |
20130114421 | ADAPTIVE BANDWIDTH ESTIMATION - It can be determined whether relative one way delay for data packets in a data stream exceeds a delay threshold. If so, then a delay congestion signal indicating that the relative one way delay exceeds the delay threshold can be generated. The delay congestion signal can be used in calculating an adaptive bandwidth estimate for the data stream. A packet loss rate congestion signal may also be used in calculating the bandwidth estimate. It can be determined whether a data stream of data packets is in a contention state. If the data stream is in the contention state, then an adaptive bandwidth estimate can be calculated for the data stream using a first bandwidth estimation technique. If the data stream is not in the contention state, then the bandwidth estimate for the data stream can be calculated using a second bandwidth estimation technique. | 05-09-2013 |
20130298204 | Automatic Detection of Wireless Network Type - Techniques for facilitating automatic detection of a type of wireless network are described. In accordance with one or more embodiments, wireless network client(s) can automatically detect the “type” of a network (e.g., method of authentication and encryption) without requiring input from the user. In accordance with one or more embodiments, a wireless network detection system having a connection component and a detection component is provided. The connection component facilitates connection of a client system to at least one of a plurality of wireless networks. The detection component identifies a type of an available wireless network. Identification can be based, for example, upon information received in an information element and/or iterative probing of the wireless network beacon. | 11-07-2013 |
20140092205 | MECHANISMS TO CONCEAL REAL TIME VIDEO ARTIFACTS CAUSED BY FRAME LOSS - The claimed subject matter provides systems and/or methods that facilitate describing, communicating, utilizing, etc. a frame dependency structure in connection with real time video communication. For example, a protocol can be employed to communicate the dependency structure from a sender to a receiver. Moreover, a mechanism on a receiver side can detect frame(s) that will be rendered with artifacts if displayed due to previous frame loss; this mechanism can leverage receiver side knowledge concerning the dependency structure of the of the frames. | 04-03-2014 |
20140111603 | Routing For Video in Conferencing - Methods and systems for routing video in conferencing are disclosed. A device receives one or more data streams from a media source, where each data stream associated with a data stream identifier. A media source identifier is assigned to each data stream from the media source. The data stream identifiers are mapped to the media source identifiers. At least one of the data streams may be modified by replacing an associated data stream identifier with the media source identifier. The modified data streams are provided to a destination device. A request is received from a destination device for data streams associated with a media source identifier. One or more data stream identifiers are associated with the requested media source identifier. The one or more data streams may be associated with Application sharing/Desktop Sharing, a video quality, a video resolution, a video frame rate, or an audio quality. | 04-24-2014 |
20140114664 | Active Participant History in a Video Conferencing System - Embodiments of methods and systems for dominant speaker identification in video conferencing are described. In one embodiment, the computer-implemented method includes identifying one or more dominant speakers in a video conference. The method may also include generating a list of the one or more dominant speakers. Additionally, the method may include communicating the list of one or more dominant speakers to clients in a video conferencing system. In a further embodiment, the method includes communicating the list of the one or more dominant speakers to a client in response to the client joining the video conference. | 04-24-2014 |