Abstract: Media gateways (MGs), grouped into a hierarchy, are operable to provide a multiparty conferencing among client devices. Gateway resources such as processors, Codecs and network interfaces are aggregated at each MG to establish distributed connection sessions based on resource management metrics such as minimizing total network. The distributed connection sessions are utilized to provide the multiparty conferencing. Each MG may aggregate the gateway resources, which may be determined utilizing a look-up table, from other MGs for sharing among the MGs. Each MG may be activated to provide the media gateway controller (MGC) processing utilizing the shared aggregated gateway resources. A MG may be de-activated from the MGC processing when needed and the associated connection sessions may be subsequently released. Gateway resources are managed at each MG based on the resource management metrics in order to establish distributed connection sessions to support the multiparty conferencing among the client devices.

Abstract: A media gateway that services a plurality of client devices may be used to combine a plurality of encoded multimedia transport streams, which may comprise a buffered copy of received encoded broadcast multimedia transport stream and an encoded local multimedia transport stream that pertains to the broadcast transport stream. The media gateway may decode the encoded broadcast multimedia transport stream to extract broadcast multimedia content carried therein based on determination of capabilities of one or more client devices used in playback of the content. The encoded local multimedia transport stream may be generated based on local multimedia content generated and/or captured via one or more client devices. The buffering duration of the received encoded broadcast multimedia transport stream may be adaptively determined, to ensure that the encoded local multimedia transport stream and the encoded broadcast multimedia transport stream are synchronized when they are combined.

Abstract: A video reception device, comprising a single video decoder, may dynamically allocate media-processing resources based on QoS parameters associated with the received time-sensitive and non-time-sensitive video streams. The single video decoder is utilized to decode the content of the received time-sensitive and non-time-sensitive video streams for display. The QoS parameters associated with the received time-sensitive and non-time-sensitive video streams are mapped to corresponding media-processing resource requirements at the video reception device. The video reception device performs resource allocation for the received time-sensitive and non-time-sensitive video streams based on the corresponding media-processing resource requirements. Multi-dimensional resources allocation metrics are selected or formed from the corresponding associated QoS parameters for media-processing resource allocation. The video reception device starts resource allocation for the received time-sensitive video streams.

Abstract: In a media gateway (MG) that enables communication with a plurality of client devices, at least a portion of video conferencing (VC) processing during a VC call between at least one of said plurality of client devices and at least one other VC client may be handled by the media gateway. The portion of the VC processing handled by said media is offloaded from a centralized VC multipoint control unit (MCU). The MG may handle one or more VC MCU functions, which may comprise video conferencing call control and/or management and/or audio/video (A/V) transcoding. The MG may adaptively control and/or configure latency associated with handling and/or communication of data by the media gateway's client device during the video conference call. The adaptive latency control and/or configuration may be based on determination of end-to-end latency associated with exchange of data during the video conference call.

Abstract: A participation device in a multiparty conference call may act as a server device and/or a client device for two-way audio and video (AV) streaming. A server device may encode a requested AV stream into a set of different encoding profiles that may be dynamically determined based on the varying channel conditions and device capacities of the client devices. At least a portion of differently encoded AV streams is selected and dynamically communicated to the client devices for display. Session parameters are determined according to the varying channel conditions and the device capacities of the client devices to create intended sessions. The selected encoded AV streams are communicated utilizing segment-based adaptive streaming techniques such as HTTP. A client device may access to a HTTP session to download an expected AV stream from the server device. The downloaded AV stream may be decoded into different decoding profiles for display as needed.

Abstract: To fortify trust in a roaming environment, a token is introduced in transactions between an authoritative entity (e.g., a Home AAA in RADIUS) and a service providing entity (e.g., a NAS in RADIUS). A Token-Information is sent from the authoritative entity to the service providing entity during the initial authentication. Subsequent transactions include a token computed from the Token-Information. The service providing entity discards messages that it receives that do not contain the correct token. The Token-Information is transported in an encrypted fashion. The token provides secure transactions when messages between the authoritative entity and the service providing entity are routed through proxy servers.

Abstract: Systems and methods for providing adaptive fine-grained fair usage controls are provided. Rather than providing a fixed fair usage threshold having time and data volume for all subscribers in the network, a quota manager at the policy controller defines an initial fair usage window having a longer period of time and higher data volume. When a subscriber exceeds the initial window, the quota manager provides a smaller time period and lower data volume. The quota manager continues to adapt the fair usage window in this way until a violation of the fair usage threshold is detected. The adaptive fair usage windows may be based on subscriber profile information, subscriber session information, and/or prior subscriber usage history.

Abstract: The present invention relates to the tantalum powder and the process for preparing the same, and also relates to the electrolytic capacitor anode made of the tantalum powder. More particularly, the present invention relates to the tantalum powder having a BET surface area not more than 0.530 m2/g, Fisher mean particle size not less than 3.00 ?m. The present invention relates to the process for preparing the tantalum powder, wherein the tantalum powder is prepared through reducing tantalum compound with a reducing agent, wherein the tantalum powder as seed is added during reduction, and said tantalum powder as seed is the tantalum powder that has been milled.

Abstract: The present invention provides a high exchange capacity perfluorinated resin comprising two kinds of sulfonyl fluoride-containing short pendant groups of different structures, which is prepared by copolymerizing tetrafluoroethylene, vinyl ether monomers comprising two kinds of sulfonyl fluoride-containing short pendant groups of different structures, and vinyl ether monomer comprising bromine-containing pendant group, wherein based on all monomer units in the copolymer, the mol % of tetrafluoroethylene monomer is 50-85%, the mol % of vinyl ether monomers comprising two kinds of sulfonyl fluoride-containing short pendant groups of different structures is 5-49% and the mol % of vinyl ether monomer comprising bromine-containing pendant group is 1-10%.

Abstract: A housing includes a screen guard defining a transparent section, and a main body molded to the screen guard. The screen guard and the main body cooperatively define a cavity for accommodating electronic components of the electronic device.

Abstract: A battery cover assembly for a portable electronic device, the battery cover assembly includes a housing, a removable battery cover and a locking mechanism. The housing has a latching portion. The locking mechanism latches the battery cover to the housing, and includes an operating member, a slidable member and an elastic member. The operating member engages in the latching portion of the housing, and the operating member includes a resisting block. The slidable member releasably engages with the battery cover, and the slidable member has a support block engaging with the resisting block. The elastic member is between the slidable member and the latching portion and provides an elastic force to the slidable member and the operating member.

Abstract: A controller of an AC/DC flyback switching power supply uses adaptive digital control approaches to control the switching operation of a BJT power switch based on primary-side feedback to regulate the secondary-side constant output voltage and output current, without using the input line voltage. Switching-cycle by switching-cycle peak current control and limit are achieved based on the sensed primary-side current rather than the input line voltage in both constant-voltage and constant-current modes, operating in PWM, PFM and/or combinations of a plurality of PWM and PFM modes. The controller IC does not need a separate pin and ADC circuitry for sensing the input line voltage. The controller IC directly drives the BJT base, and dynamically adjusts the BJT base current amplitude cycle by cycle based on load change.

Abstract: A mounting bracket for mounting a storage mechanism to an electronic device includes a main portion and two fixing portions located at opposite ends of the main portion. At least one of the fixing portions defines a through hole therein, and a buffering protrusion extending out from a surface of the fixing portion and surrounds the through hole. An electronic device having the mounting bracket is also provided.

Abstract: An EMI shield includes a first contacting member and a second contacting member connected to the first contacting member. The first contacting member includes a first bent portion and a second bent portion extending from the first bent portion. An opening is defined in the first bent portion. The second bent portion comprises a main body connected to and slanted to the first bent portion, a tongue-like sheet extending from the main body, towards and corresponding to the opening of the first bent portion, and one or more hooks formed on the sides of the main body. The tongue-like sheet includes a latching portion. An electronic device using the EMI shield is also provided.

Abstract: An electronic device includes a fixing structure to receive a circuit board. The fixing structure includes a first latching hook and a second latching hook spaced from each other. The circuit board defines a first latching slot corresponding to the second latching hook and a second latching slot corresponding to the first latching hook, at opposite ends of the circuit board. The first latching hook includes a first latching corner protrusion at the distal end of the first latching hook. The second latching hook includes a second latching corner protrusion at the distal end of the second latching hook. The circuit board is detachably fixed to the side wall, with the first latching hook engaged in the second latching slot, the second latching hook engaged in the first latching slot, and the first and second latching corner protrusions resisting any movement by the circuit board.

Abstract: A frame averaging circuit adapted for a color blood flow frame in a medical ultrasound imaging system. The frame averaging circuit comprises two sections, i.e., a recursive calculation section and a non-recursive section. The recursive calculation section employs an IIR filter in combination with a look-up table, and is adapted for dealing with the cases where no change occurs to the blood flow velocity direction. The non-recursive section compares the blood flow velocity, the energy and the energy prior to wall filtering of the color blood flow echo signal to various threshold values. Different from the recursive calculation section, the non-recursive section is employed when a change occurs to the blood flow velocity direction.

Abstract: An electric motor includes a stator and a rotor installed in the stator. The stator has a laminated stator core and at least two stator windings wound on the stator core. The stator core has at least two stator poles facing the rotor and at least two yokes connecting adjacent stator poles. T stator core is constituted by at least two separate members joined together. The at least two stator poles are only arranged at a single one of the at least two separate members.

Abstract: An electronic device includes a supporting member, a circuit board fixed to the supporting member, a bottom cover assembled with the supporting member, and at least one conductive resilient sheet fixed on the circuit board. The conductive resilient sheet includes a fixing portion fixed on the circuit board and a conductive portion. The conductive portion defines a first elastic sheet and a second elastic sheet. The bottom cover is fixed between the first elastic sheet resisting the outer side of the bottom cover and the second elastic sheet resisting the inner side of the bottom cover.

Abstract: The present invention provides a perfluorinated ion exchange resin, whose structural formula is shown in formula M. The present invention also provides preparation method of the perfluorinated ion exchange resin, comprising subjecting tetrafluoroethylene monomers and two kinds of sulfonyl fluoride-containing vinyl ether monomers in the presence of initiator to ternary copolymerization. The perfluorinated ion exchange resin provided in accordance with the present invention can fulfill the requirements of mechanical strength and ion exchange capacity at the same time and has good thermal stability.

Abstract: An apparatus (100) and method for measuring an extract (1000) released from a product sample (330) in vitro. The apparatus (100) comprising an in vitro environment which simulates an in vivo environment. The apparatus (100) contains a product sample (330) with the product sample (330) exposed to the in vitro environment. An extract (1000) is produced from the product sample (330) when the product sample (330) is subjected to the in vitro environment. The extract (1000) is analyzed to determine the amount of at least one element in the extract and the rate of release of at least one element in the product sample (330). The product sample is a smokeless tobacco product. An element analyzed for is nicotine.