1110 results about "Dynamic switching" patented technology

A novel apparatus and method for a hybrid Cartesian / polar digital QAM modulator. The hybrid technique of the present invention utilizes a combination of an all digital phase locked loop (ADPLL) that features a wideband frequency modulation capability and a digitally controlled power amplifier (DPA) that features interpolation between 90 degree spaced quadrature phases. This structure is capable of performing either a polar operation or a Cartesian operation and can dynamically switch between them depending on the instantaneous value of a metric measured by a thresholder / router. In this manner, the disadvantages of each modulation technique are avoided while the benefits of each are exploited.

A multimodal browser for rendering a multimodal document on an end system defining a host can include a visual browser component for rendering visual content, if any, of the multimodal document, and a voice browser component for rendering voice-based content, if any, of the multimodal document. The voice browser component can determine which of a plurality of speech processing configuration is used by the host in rendering the voice-based content. The determination can be based upon the resources of the host running the application. The determination also can be based upon a processing instruction contained in the application.

A wireless communication system is provided that has at least three nodes arranged in a multi-hop ultra wide band (UWB) communication network such that communications from a first node destined for a third node pass through a second node. Each of the devices in the system includes a radio and a media access control (“MAC”) module that is configured to establish multi-hop UWB wireless communications between the three or more wireless communication devices that enables high bandwidth applications such as Voice Over Internet Protocol (“VoIP”); multiplayer gaming; Wireless High Definition Television; and Internet Protocol Television (“IPTV”) among others. The MAC module is configured to avoid bandwidth reservation conflicts so that network performance does not degrade as the number of hops or the number of nodes in the wireless communication system increases. The MAC also facilitates utilization of multiple channels to maximize the available spectrum and is further configured to dynamically switch between channels to maximize throughput and meet or exceed quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized.

Systems and methods for selecting reception of video streams in an adaptive fashion, for example, from a multi-stream video source. In one implementation, reception of the video streams may be dynamically switched such that optimal bandwidth is selected in adaptive fashion using a set of video parameters, such as the size or dimensions of the viewing window, and / or a set of system and network parameters, to ascertain the optimal stream selection.

An apparatus, system, and process are disclosed for dynamically determining a best network service for an electronic computing device. A network query module queries two or more active networks to determine the network characteristics, such as bandwidth, security level, and cost, of each network. A service level module determines a service level associated with each active network. The service level is determined based on an algorithm using the network characteristics of each network. A best network module determines the best network from the active networks based on the service levels of each network, and a network connection module dynamically connects the electronic computing device to the best network. The network selection apparatus may also maintain and use a profile module to store default, user-defined, application, and network profiles. A dynamic switching module may dynamically switch between active networks as the service levels of individual networks are re-evaluated and the network characteristics of each network change.

The present invention provides a system and methods for producing multiple encoded representations of a video input sequence. The multiple representations produced each contain identified synchronization frames that allow a server and a client to switch between streamed representations in real time without interruption. Synchronization frames are frames of encoded video that can be independently decoded. A representation can thus be decoded starting at a synchronization frame. Each synchronization frame in one representation has a corresponding synchronization frame at a substantially similar temporal location in any other generated representation of the same video input sequence. The temporal co-location of synchronization frames in all representations facilitates the dynamic switching between representations during the streaming process. The present invention also provides a video encoder application that shares data during the encoding of multiple representations of a video input sequence by reusing data calculated in the encoding of one representation to encode other representations. The application can also generate the multiple encoded representations simultaneously.

Embodiments of the present invention generally relate to a system and method of processing data signals. More specifically, in one embodiment, system architecture splits mixing functions between client and server to enable dynamic switching between a client-server and a peer-to-peer paradigm. In another embodiment, architecture allows one to efficiently trade-off computation in the server and link bandwidth in the network. In another embodiment a system is provided to minimize computational load on server subject to link bandwidth constraint. In another embodiment a system is provided to maximize use of client computational resources. In another embodiment a system is provided to adapt to changing network environments and changing service requirements (e.g. number of clients).

An end station for a videoconference / multimedia conference is disclosed, where the end station requests, receives and displays multiple video streams. Call control messages request video streams with specified video policies. A static policy specifies a constant source video stream, e.g., a participant. A dynamic policy dynamically maps various source streams to a requested stream and shows, for example, the current speaker, or a round robin of participants. A network access device, e.g., a media switch or a video composition system, mediates between the multi-stream end station and the core conference system. Multi-stream endpoints need not handle the complexity of directly receiving video according to a potentially wide variety of call control protocols, formats, and bit-rates. Multi-stream endpoints decentralize compositing video streams, which increases functional flexibility and reduces the need for centralized equipment.

The Graphical User Interface (GUI) of a videoconference terminal is provided with user-selectable icons which are associated by the user with various video signals. Textual labels for the various video signals may also be provided. This information may be exchanged with the “far end” participant in the video conference. During the videoconference participants may then simply select an icon to dynamically switch video feeds without having to remember by number the particular camera or other video signal associated with a desired video feed.

Storage gateway provisioning, configuration, and management functions provide mechanisms to specify and manage parameters and operations associated with storage gateways. The parameters may include any combination of VLAN topology, zoning behavior, LUN masking, bandwidth, and priority. The parameters may also include path information describing initiator to target associations, enabling load-balancing aggregations and multipathing redundancy. Parameters may be specified at relatively low-levels, describing specific HW elements, or may be specified at relatively high-levels, describing desired bandwidth and redundancy requirements, with SW determining low-level HW assignments. Configuration and management functions enable dynamic modification of storage gateway parameters (such as bandwidth between selected initiator and target pairs). Management functions also enable dynamic switchover from a primary path to a secondary path with respect to a storage device.

A method for dynamically switching between communications protocols used in communicating with each of a plurality of physical computing devices includes configuring, by a storage delivery management service, a storage system in a storage area network, to communicate, according to a first communications protocol with a first physical computing device executing a virtual machine, the storage system providing, to the virtual machine, access to a virtual storage resource. The storage delivery management service receives a request to migrate the virtual machine from the first physical computing device to a second physical computing device. The storage delivery management service configures the storage system to communicate with the second physical computing device according to a second communications protocol. The storage delivery management service transmits, to the second physical computing device, an identification of the storage system providing access to the virtual storage resource for the virtual machine.

A method and system for increasing the overall network throughput over a wireless local area network (WLAN). Specifically, in one embodiment of the present invention, the dynamic switching between the Distributed Coordination Function (DCF) and Point Coordination Function IEEE 802.11 access modes is determined according to the load conditions over the WLAN in a method and system. Stations and access points within a WLAN monitor conditions within the network to determine which access mechanism is most optimum for the current load conditions. Some factors to consider in determining the load conditions include but are not limited to the number of transmissions, number of receptions, and number of collisions.

The invention relates to a method and system for preventing blind DDoS attacks on SDN controllers. The system comprises an SDN controller resource pool monitor, a controller list dynamic switching module deployed on an SDN switch and an attack detection application module, and the attack detection application module and the controllers carry out data interaction through data interfaces. The SDN controller resource pool monitor is used for maintaining the establishment of a plurality of physical machine and / or virtual machine controllers, data synchronism, IP address distribution and state lists to be issued to the switch. The attack detection application module detects the communication data streams of the controllers and the switch in an SDN network, and when blind DDoS attack streams on the controllers are detected, the SDN controller resource pool monitor dynamically adjusts the number of the controllers according to attack flow generated when the blind DDoS attacks occur. The method can dynamically adjust the number of the controllers, the blind DDoS attacks on the controllers can be effectively prevented, and the usability of the SDN network is guaranteed.

A system and method for managing power consumption of an information handling system dynamically switches between high and low clock speed data transfers with double data rate (DDR) memory. The selection of a high clock speed dynamically switches the DDR memory to connect to a parallel termination for more rapid data transfers with increased power consumption. The selection of a low clock speed dynamically switches the DDR memory to disconnect the parallel termination for slower data transfers with reduced power consumption. In one embodiment, portable computer graphics DDR memory reduces power consumption by selecting low clock speed transfers without parallel termination when operating on internal power. The portable computer graphics DDR memory provides improved display resolution by selecting high clock speed transfers with parallel termination when operating on external power or when displaying information from high resolution applications.

In a GSM / EDGE Single Antenna Interference Cancellation (SAIC) operation environment, a mobile station is required to operate in a wide range of interference levels. An SAIC linear equalizer that takes advantage of the GMSK signal structure performs better than a conventional Maximum Likelihood Sequence Estimation (MLSE) equalizer in high interference levels, while it performs worse in low interference levels. A dynamic selection between the SAIC linear equalizer and the MLSE equalizer for each received burst is achieved to provide the optimal performance across the entire required operation environments. The dynamic selection is based on the estimated noise plus interference energy relative to the total received signal energy. The soft information calculated by the two categories of equalizers is properly scaled to generate soft information with balanced magnitude.

A data center management unit (100) for managing and controlling power distribution to computers in a data center, comprising:a first power inlet (101) for connectivity to a first power feed;a second power inlet (102) for connectivity to a second power feed;a plurality of power outlets (111, 112, 113, 114, 115, 116, 117, 118) for providing power to the computers;a plurality of power switches (131, 132, 133, 134, 135, 136, 137, 138) each having a first input coupled to the first power inlet, a second input coupled to the second power inlet, and an output coupled to a respective power outlet; anda processor (161) adapted to control the power switches for dynamically switching individual power outlets between the first power inlet and the second power inlet or vice versa, and for dynamically switching off individual power outlets.

A system and method for dynamically changing the quality of service (QoS) for a subscriber of a cellular radio system. Bandwidth-on-Demand (BoD) enables the subscriber to dynamically switch to higher bandwidth and to enable a higher throughput. This may be for a limited time or amount of data, for example. The initiation may be by the subscriber, carrier, sponsor, or automatically by an application. The QoS increase may be dynamically priced in a kind of auction. The wireless device may contact the policy servers of a multiple network operator (MNO), which in turn contacts the Authentication, Authorization and Accounting (AAA) server in the MNO's core network. The policy server contacts the scheduler on the serving basestation which then determines whether to allocate more resources (i.e. bandwidth in the form of subcarriers, resource blocks, resource elements, timeslots) to the subscriber. The initiation may start a timer or data counter.

The present invention relates to method and device for realizing multilingual user interface. The key of the present invention includes setting and saving various language resource information data to be displayed in the user interface; and establishing user interface assembly to call required language resource information data and display in the user interface, so as to provide user interface of corresponding language. Therefore, no matter how much kinds of language are to be supported in the user interface, only one user interface is needed, and this raises the development efficiency and lowers the maintenance cost greatly. In addition, the present invention can perform the dynamic switching between the supported languages during the normal application of the user interface.

A system and method for transmitting voice data traffic over a wireless medium, such as a voice call using a wireless Internet Protocol mobile phone on a wireless local area network, to increase the quality and the number of voice calls on a Basic Service Set. Endpoints are capable of dynamically switching to alternate voice coding profiles. The WLAN is surveyed by a wireless endpoint to determine whether a congested network condition exists. Coding profiles may be dynamically switched to decrease the congested conditions and improve call quality. If dynamically switching of profiles in not available then the wireless endpoint gracefully degrades the transmission by periodically dropping packets until network congestion reduces and / or call quality increases.

An end station for a videoconference / multimedia conference is disclosed, where the end station requests, receives and displays multiple video streams. Call control messages request video streams with specified video policies. A static policy specifies a constant source video stream, e.g., a participant. A dynamic policy dynamically maps various source streams to a requested stream and shows, for example, the current speaker, or a round robin of participants. A network access device, e.g., a media switch or a video composition system, mediates between the multi-stream end station and the core conference system. Multi-stream endpoints need not handle the complexity of directly receiving video according to a potentially wide variety of call control protocols, formats, and bit-rates. Multi-stream endpoints decentralize compositing video streams, which increases functional flexibility and reduces the need for centralized equipment.

The invention discloses a multi-conducting-channel synchronous electrocardio signal processing method and an apparatus. The method comprises the following steps: A1, collecting electrocardio signals of each conducting channel respectively and obtaining electrocardio signal data of each conducting channel; B1, calculating a quality judgment guideline of each conducting channel according to the electrocardio signal data; C1, performing optimized conducting channel selection according to the quality judgment guideline; D1, performing QRS wave identification and specification to each single conducting channel or at least to the optimized conducting channel according to the electrocardio signal data; E1, performing a combination judgment to the QRS wave identification and specification result of the optimized conducting channel to form a combination detection result. The invention realizes the tracing of dynamic variation of the quality of signals in a comparatively complicated clinical application environment and the effective extraction of electrocardio signals through dynamic switching of the optimized conducting channels, and finally a reliable analyzing information of the rhythm of heart of a patient can be obtained.

A user interface method and system for positioning graphical objects in the display area of a free form system. A selected object may operate in a first state where it can be moved to different positions within the display area. The selected object may further operate in a second state where movement of the selected object causes other graphical objects within its path of movement to also move. The state of the selected object is indicated by a visually distinct presentation of the graphical object, for example when in the first state the graphical object is shown to have shadow to provide the visual clue that it is “above” the other graphical objects in the display area. A user may dynamically switch between states based on signals provided to the system.

The invention discloses an access method of a cognitive wireless MESH network, comprising the following steps of: dividing the wireless network into a multi-layer structure; selecting a cluster head of each single-hop cluster, and taking each cluster head of the same layer as a node of each single-hop cluster of the upper layer thereof until the highest layer; and finishing negotiation between every two transceiving nodes through a common control channel, and locking channel communication through the negotiation. The invention also discloses a control method of the cognitive wireless MESH network, and in the method, each node generates and maintains a data channel priority information table and a neighbor node communicating table; each transceiving node broadcasts and updates information on the corresponding common control channel; and communication is carried out on the channel in a DATA-ACK-DATA-ACK mode. The control method has the advantages that a data transmission channel between every two transceiving nodes can be flexibly matched; interference of a neighbor node is overcome; channel dynamic switch is implemented according to channel quality information; the business demands of a cognitive user is satisfied, and the priority of the user is guaranteed; and self-adaptation loading and regulation are carried out according to the variation of cognitive nodes.

Method and system for switching a network application operating in a first communication mode to a second mode within a wireless local area network, comprising: judging whether mobile nodes are neighboring according to location information; when nodes are neighboring inquiring whether mobile nodes want to switch to second mode to run network applications; when all mobile nodes agree to switch to second mode, downloading and installing network application provided by the application server to one of the mobile nodes; configuring each of the mobile nodes with the communication parameters under the second mode; and switching all mobile nodes to the second communication mode to continue the previous network application. The invention dynamically switches between Infrastructure mode and Ad-hoc mode to balance system resources, improve QoS, reduce the communication traffic, waiting time and the cost of the users, and increase the income of the provider of the network service.

A vertical color detector group according to the present invention is formed on a semiconductor substrate and includes layers for collecting photons of different wavelength bands. The color detector group can be programmed to perform dynamic switching between sub-sampled color data and full measured color readout. The color detector group can also be configured in a portion of an array to emulate color filter array patterns, and programmed to dynamically alter the degree to which color information is sub-sampled. The programmable color detector groups can allow for switching between different levels of quality and resolution, allowing for selection of an optimal pattern based on image content or lighting conditions. By combining the color detector group of the present invention with conventional color filters, color filter arrays of more than three colors can be constructed.

An embodiment of the invention discloses a method for dynamically switching channels. The method includes detecting signal intensity interfering data transmission of an access point on a current operating channel; judging whether the signal intensity detected is larger than switching threshold or not; detecting signal intensity interfering data transmission of the access point in an effective channel when the signal intensity detected is larger than the switching threshold; switching to one effective channel from the current operating channel, wherein signal intensity interfering data transmission of the access point in one effective channel is detected to be smaller than the switching threshold at least. By detecting the signal intensity interfering data transmission of the AP (access point) on the current operating channel, the signal intensity interfering data transmission of the AP in one effective channel is detected when the signal intensity detected is larger than the switching threshold, and a low-interfered channel in the effective channels is selected to be a new operating channel, so that the AP has higher signal transmission efficiency and provides higher-quality wireless networking experience for users.

The embodiment of the present invention discloses a live broadcasting room dynamic configuration method, device, system and a server which solve the technical problems at present that when different types of live broadcasting rooms need to change the UI templates, the on-line configuration and dynamic switching can not realized, so that the dynamic repair can not be realized when problems occur, but the continuous iterative development is needed; moreover, users are required to upgrade the versions and install the applications again, and the personnel of multiple service lines develop in a same engineering, so that the coordinated development and positioning problems are difficult, and accordingly, the efficiency of updating the configuration is low. The live broadcasting room dynamic configuration method of the embodiment of the present invention comprises the steps of obtaining the live broadcasting room service assembly templates issued according to the service demands corresponding to the live broadcasting room service functions; and carrying out the corresponding interface rendering according to the live broadcasting room service assembly templates and the preset assembly layout.

Systems and methods for dynamically switching between unicast and multicast delivery of media content are disclosed. An exemplary method includes a user device 1) accessing, over a wireless network, a unicast stream carrying data representative of a media content program, 2) detecting, during the accessing of the unicast stream, an instruction to switch to a multicast stream carrying data representative of the media content program, and 3) switching, in response to the instruction, from the accessing of the unicast stream to accessing the multicast stream by way of the wireless network. Corresponding systems and methods are also disclosed.

A digital video encoder is presented adapted for dynamically switching between sets of quantizer matrix tables without pausing encoding of a stream of video data. Two or more sets of quantizer matrix tables are held at the encoder's quantization unit and compressed store interface for dynamically switching between sets of quant matrix tables at a picture boundary of the sequence of video data, i.e., without stopping encoding of the sequence of video data. Further, while one set of matrix tables is being employed to quantize the stream of video data, the encoder can be updating or modifying another set of quantization matrix tables, again without stopping encoding of the sequence of video data.

A method and system of multi-channel echo cancellation using round robin regularization. The multi-channel round robin regularization echo cancellation method includes applying a plurality of adaptive filters, each having an inverse correlation matrix, to the multi-channel playback signal. Each of the plurality of adaptive filters is selected in a round robin sequence, so that every round each of the filters is selected. The inverse correlation matrix associated with each selected adaptive filter then is regularized as needed. The regularized adaptive filter then is used to remove the echo of the multi-channel playback signal from a captured signal. Regularization is implemented in a round robin manner to ensure that each subband is selected so that the adaptive filter for that subband can be examined. Other features of the multi-channel echo cancellation system and method include dynamic switching between monaural and multi-channel echo cancellation and mixed processing for lower and upper subbands.