50th week of 2008 patent applcation highlights part 27 |
Patent application number | Title | Published |
20080304448 | System and Method for Dynamic Resource Allocation in Wireless Communications Networks - System and method for dynamic resource allocation in wireless communications networks. A method for dynamically allocating resources of a contention channel comprises computing an expected delay for a transmission made by a user over the contention channel, determining a target probability of collision from the expected delay, computing an allocation of resources of the contention channel using the target probability of collision, and allocating resources of the contention channel using the computed allocation of resources. | 2008-12-11 |
20080304449 | Fa Assignment Method, Fa Assignment Module and Policy Server in the Wireless Portable Internet System - Provided are a broadband wireless access communication system, and a method for assigning a frequency assignment (FA) to a newly accessing portable subscriber station (PSS) when a radio access station in a portable Internet system serves a number of FAs. The method for assigning a FA includes the steps of: receiving a connection request signal from a PSS through a primary FA; acquiring a MAC address of the PSS in a connection initialization process with the PSS; acquiring information on the number of available FAs in a sector receiving the connection request signal; determining a FA for the PSS based on the MAC address and the number of the FAs; transmitting the determined FA information to the PSS; and changing the FA of the PSS from the primary FA to the determined FA. | 2008-12-11 |
20080304450 | Inter-Mode/Inter-Rat Handover - There is disclosed a method of packet switched handover in a communications system having at least two modes of operation, the method comprising, at a terminal of the system, associating identifiers of each mode of operation, and responsive to a packet switched connection handover to a new mode, allocating the connection from an identifier of the existing mode to the associated identifier of the new mode. | 2008-12-11 |
20080304451 | METHOD TO ALLOW HAND-OFF OF A CDMA MOBILE FROM IMS FEMTOCELL TO CIRCUIT MSC - A method for hand-off of a cell division multi-access mobile from an internet protocol base network to a circuit mobile switching center is disclosed. The system includes determining whether a hand-off is appropriate based at least in part on signal strength of a call for a mobile unit. The method continues with sending a message indicating that the mobile identification of the mobile unit and a target cell locating the circuit identification of a circuit that is available to support a hand-off. The method continues on with allocating the circuit and reconfiguring the mobile unit to a macrocell (CDMA access network) and legacy MSC via the circuit. | 2008-12-11 |
20080304452 | Method for a mobile phone to automatically adapt to different frequency bands - A wide area communication network includes a first and second local wireless communication network, each local network operating in a different frequency band. A mobile phone previously configured to operate in the frequency band of the first local wireless communication network is transported to the second local wireless communication network and after powered runs a reconfiguration routine to operate in the frequency band of the second local wireless communication network. The reconfiguration routine includes scanning the wireless medium for a signal that includes wireless LAN identification information and after receiving such a signal comparing this identification information to identification information stored in the mobile phone. If the comparison results in a match, the mobile phone can successfully associate with the second local wireless communication network. | 2008-12-11 |
20080304453 | METHOD AND APPARATUS FOR SEQUENTIAL MESSAGES - A method and apparatus for sequential measurement reporting in media independent handover communications are disclosed. In a first embodiment a measurement time field is added to existing IEEE 802.21 measurement report messages. In a second embodiment a measurement sequence number field is added to existing IEEE 802.21 measurement report messages. Optionally, the measurement time field, or sequence number field may be included in an IEEE 802.21 message. | 2008-12-11 |
20080304454 | HETEROGENEOUS NETWORK AND METHOD FOR HANDOVER BETWEEN HETEROGENEOUS NETWORKS - A heterogeneous network includes a terminal side and a network side. The network side includes an original PoA and handover candidate PoAs. The terminal side is used to select the handover candidate PoAs, initiate a media independent handover request, terminate a connection with the original PoA, and establish a connection with the handover candidate PoAs. The original PoA is used to terminate the connection with the terminal side according to the media independent handover request initiated by the terminal side. The handover candidate PoAs is used to establish the connection with the terminal side according to the media independent handover request initiated by the terminal side. A method for handover between heterogeneous networks initiated by the terminal side and the network side based on the 802.21 architecture is also provided, which improves the processing of the handover process. | 2008-12-11 |
20080304455 | Method, System, Mobile Communication Terminal and a Node Adapted for End-to-End Quality Access Selection of an Access Network - In a method of selecting an access network from among one or more access networks capable of providing service to a mobile communication terminal, measuring (S | 2008-12-11 |
20080304456 | Communication System, Radio Lan Base Station Control Device, and Radio Lan Base Station Device - There are provided a communication system, a radio LAN base station control device, and a radio LAN base station device capable of increasing the control reliability and improving communication stability and safety between the radio LAN base station control device and the radio LAN base station device. In this communication system ( | 2008-12-11 |
20080304457 | Secure mobile IPv6 registration - In one embodiment, a method comprises receiving by an agent a request from a network node for generation of a secure IPv6 address for use by the network node, the request including a selected subset of parameters selected by the network node and required for generation of the secure IPv6 address according to a prescribed secure address generation procedure, the selected subset including at least a public key owned by the network node; dynamically generating by the agent at least a second of the parameters required for generation of the secure IPv6 address; generating by the agent the secure IPv6 address based on the selected subset and the second of the parameters required for generation of the secure IPv6 address; and outputting, to the network node, an acknowledgment to the request and that includes the secure IPv6 address, and the parameters required for generation of the secure IPv6 address. | 2008-12-11 |
20080304458 | Inter-Working of Networks - In a heterogeneous network environment comprising a plurality of first wireless networks and a second wireless network, said plurality of first wireless network utilizing a first wireless communication protocol and said second wireless network utilizing a second wireless communication protocol different to said first, a method of gathering data from said plurality of first wireless networks, which method comprises the steps of: electronically extracting a network identifier from at least one of said first wireless networks; transmitting said network identifier to a remote server; and said remote server compiling a database of network identifiers received from said plurality of first wireless networks, storing of said database facilitating inter-working between one or more of said plurality of first wireless networks and said second wireless network. | 2008-12-11 |
20080304459 | METHOD FOR CONTROLLING A CONTROL STATION, A METHOD FOR CONTROLLING A TERMINAL STATION, A CONTROL STATION, A TERMINAL STATION, AND A COMPUTER READABLE STORAGE MEDIUM - A method for controlling a control station (H | 2008-12-11 |
20080304460 | CELLULAR NETWORK/WLAN VoIP SERVICE INTERACTION BY HOME WIRELESS ROUTER - A home wireless router establishes a Wireless Local Area Network (WLAN). The home wireless router services a plurality of wireless terminals within the WLAN service area, the plurality of wireless terminals including at least one Voice over Internet Protocol (VoIP) wireless terminal. The home wireless router receives a request to terminate a WLAN VoIP call to the VoIP wireless terminal. The home wireless router determines that the VoIP wireless terminal is currently servicing a cellular call via a cellular network. The home wireless router causes the cellular network to be misled into concluding that another cellular call is to be serviced by the VoIP wireless terminal, the cellular network places the cellular call on hold in the incorrect conclusion that it will service the another cellular call, and the WLAN VoIP call is terminated to the VoIP wireless terminal. | 2008-12-11 |
20080304461 | SYSTEM AND METHOD FOR MULTI-NETWORK COVERAGE - A system and method are provided for a multi-network wireless communications access terminal (AT) to access multi-network coverage. The method registers a multi-network AT in a first communications network. In response to registering with the first network, the AT receives information via the first network that is required for accessing a second communications network (e.g., an IEEE 802.20 or 1xEV-DO network). The AT obtains services accessed via the second network, in response to the access information received via the first network. For example, the second network access information may be system information, channel information, or access point parameters. The AT retains the option of obtaining services accessed via the first network if the second network cannot be accessing the second network. | 2008-12-11 |
20080304462 | SESSION INITIATION PROTOCOL/INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM BASED ARCHITECTURE FOR SUPPORTING 3G1x VOICE/DATA - A core network architecture for supporting an internet protocol based network is disclosed. The system includes a base station which is configured to convert a signal from a first network to an internet protocol network signal and send the converted signal through the internet protocol base network. The network also includes a gateway which is configured to receive the converted signal and deploy the converted signal through the internet protocol base network. In this sense, the internet protocol base network manages the call mobility and delivery of the signal. The base station in this disclosure may be a femto base station and the first network may be a code division multi-access (CDMA) network. | 2008-12-11 |
20080304463 | Reduced search space technique for codeword selection - A method of determining indicators for matrix codewords in a matrix codeword codebook, where the matrix codewords are adapted for communicating information between a transmitter and a receiver. The method includes providing a lookup table that is associated with multiple codewords that are associated with a codebook. The lookup table has m rows, and each row in the lookup table has a one-to-one correspondence with a codeword in the multiple codewords. Each row has p entries and each of the p entries holds a codeword indicator that identifies a codeword in the multiple codewords. The (i,j) | 2008-12-11 |
20080304464 | Low complexity precoding matrix selection - A method of determining indices for matrix codewords in a matrix codeword codebook. The matrix codewords are adapted for communicating information between a transmitter and a receiver. The method includes retrieving from temporary storage, an eigenmode representation for a communications channel, where the eigenmode representation is based upon on a received signal precoded by a first matrix codeword. The method also includes performing a test on multiple vector codewords to identify a first vector codeword among the multiple vector codewords, where the test includes determining a relationship between the first vector codeword and the representation of an eigenmode. The first vector codeword is associated with a first vector codeword index that identifies the first vector codeword. The method also includes generating a matrix codeword index associated with a second matrix codeword in the matrix codeword codebook. The matrix codeword index is based upon the first vector codeword index, and the order of the first vector codeword is different from the order of the second matrix codeword. | 2008-12-11 |
20080304465 | WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD - A wireless transceiver device employing the code select code division multiple access method includes an encoder configured to execute error correction coding on data having a predetermined number of bits among data inputted from outside, and a code selector configured to select a code corresponding to the data subjected to correction coding. The wireless transceiver device performs wireless communication by use of the data inputted from the outside excluding the data having the predetermined number of bits and by use of the code. | 2008-12-11 |
20080304466 | WIRELESS MULTIPOINT VOICE NETWORK - In general, a mobile unit for communicating with other mobile units assigned to a group within a Multipoint Voice Network (“MVN”) having a plurality of groups is shown. The mobile unit may include transmitter, receiver, and controller. The transmitter is enabled to transmit a set of multiple carrier frequencies, where the transmitter is configured to transmit on one frequency chosen from a sub-set of multiple carrier frequencies from the set of multiple carrier frequencies. The sub-set of multiple carrier frequencies correspond the group. The receiver is configured to receive and demodulate the sub-set of multiple carrier frequencies and the controller configures the receiver to receive and demodulate the sub-set of multiple carrier frequencies that is assigned to the group. | 2008-12-11 |
20080304467 | CONTROL AND DATA SIGNALING IN SC-FDMA COMMUNICATION SYSTEMS - Apparatus and method for multiplexing control information bits and data information bits into sub-frame symbols depending on the location of symbols carrying a reference signal (RS), to provide an estimate for the channel medium and enable coherent demodulation for signals carrying information bits. The control information bits include ACK or NAK and/or channel CQI bits. The ACK/NAK bits are placed with priority in symbols around the symbols carrying the RS, to allow for improved accuracy of the channel estimate, followed by the CQI bits when both ACK/NAK and CQI bits exist. Moreover, the sub-frame resources required to achieve the desired reception reliability for the control information depend on the operating conditions and can varied to minimize the associated control overhead. | 2008-12-11 |
20080304468 | Multiple Spatial Channel Transmission with Rate Control - A MIMO ARC transmitter derives demux streams ( | 2008-12-11 |
20080304469 | Radiocommunication System Mobile Station Which Can Communicate Directly with Another Mobile Station - The present invention relates to a mobile station of a mobile radiocommunication system of the type comprising means for receiving synchronisation channels transmitted on at least one carrier so as to be able to synchronise with a base station and transmit data in a traffic channel defined with respect to said synchronisation channels. | 2008-12-11 |
20080304470 | METHOD AND SYSTEM FOR PROVIDING INTELLIGENT CALL REJECTION AND CALL ROLLOVER IN A DATA NETWORK - A system and method may include receiving an invite message associated with a calling device over a data network, the invite message requesting establishment of a voice over data communication session, and presenting a plurality of call rejection options, each of the plurality of call rejection options being associated with separate call rejection messages. The system and method may further include determining which one of the plurality of call rejection options is selected, where the plurality of call rejection options permit a called party to intelligently reject a voice over data communication session. | 2008-12-11 |
20080304471 | METHODS AND APPARATUS TO PERFORM CALL SCREENING IN A VOICE OVER INTERNET PROTOCOL (VOIP) NETWORK - Methods and apparatus to perform call screening in a voice over Internet protocol (VoIP) network are disclosed. An example method comprises sending a call initiation request to a VoIP endpoint, receiving a call screening indication from a user of the VoIP endpoint in response to the call initiation request and prior to a no answer determination made by an initiating call server, and playing a message for the user while a calling party is leaving the message. | 2008-12-11 |
20080304472 | Communication embodiments and low latency path selection in a multi-topology network - In one embodiment, a source device (e.g., a VOIP phone) establishes a call connection with a remote device depending on which of multiple network paths provides an acceptable latency (e.g., a lower latency). For example, in response to receiving a request to establish a connection with a remote destination device over a network, the source device (e.g., a caller's phone) obtains multiple service code values. The source device encodes each of multiple data packets to include a unique service code value for transmission of the messages over different network topologies to a remote destination. Thus, when transmitted, each of the multiple messages follows a different logical network topology of a network as specified by a respective service code value. Based on feedback from a remote device that receives the multiple messages, the source learns a preferred logical network topology of the network for establishing the call connection. | 2008-12-11 |
20080304473 | Enhanced terminal adapter - An enhanced terminal adapter (ETA) allows multiple communication devices connected to either similar or dissimilar networks, and typically accessible through different access numbers/addresses, to be used as extensions of each other when any of the devices are accessed via their access number/address. In the case of a PSTN call, communications devices connected to the ETA are considered POTS extensions. For a VoIP call, the communications devices connected to the ETA could be considered enhanced extensions in a VoIP network. In this way, the communications devices are each extensions of each other, depending on which device is accessed. | 2008-12-11 |
20080304474 | Techniques to Synchronize Packet Rate In Voice Over Packet Networks - Method and apparatus to synchronize packet rate for audio information are described. | 2008-12-11 |
20080304475 | Hybrid fiber twisted pair local loop network service architecture - A new architecture capable of utilizing the existing twisted pair interface between customer premises equipment and an associated serving local switching office is used to provide a vast array of new services to customers. Using an intelligent services director (ISD) at the customer services equipment as an interface for the equipment to an existing twisted cable pair and a facilities management platform (FMP) at the serving local switching office as an interface to various networks and service opportunities, new services such as simultaneous, multiple calls (voice analog or digital), facsimile, Internet traffic and other data can be transmitted and received over the twisted cable pair by using digital subscriber loop transmission schemes. The new services include but are not limited to videophone, utility meter reading and monitoring, broadcasting and multicasting. The architecture provides for fault-tolerant, transparent interaction of components and services and supports a variety of standards for each level of the open systems interconnection layers and layers of TCP/IP. The FMP connects electronically or optically to the public switched telephone network, Internet backbone, a private Intranet as well as other possible network connections. | 2008-12-11 |
20080304476 | ETHERNET OVER MPLS CIRCUIT EMULATION SERVICE - A method and apparatus are provided for providing CES using both Ethernet and MPLS networks. TDM data is packetized and Ethernet encapsulated, and then MPLS encapsulated. Following insertion into an MPLS core network, the packet is routed to a destination MPLS router using MPLS routing. The MPLS encapsulation is then removed, and the resulting Ethernet frame inserted into a destination Ethernet network. The Ethernet frame is routed to a destination Ethernet port using Ethernet routing. The TDM data is extracted, and inserted into the appropriate TDM channel. The invention allows inexpensive Ethernet equipment to be used at the boundary with the TDM network, and a reliable MPLS network with its QoS functionality to be used for any long-haul part of the CES. | 2008-12-11 |
20080304477 | Carrier Class Resilience Solution For Switched Ethernet Local Area Networks (Lans) - A Carrier Class Ethernet switch is described herein that has a resilient switch control system (RSCS) which manages redundant switch matrixes that use redundant links to connect to one or more application blades (e.g., switches, end stations). The Ethernet switch has Carrier Class characteristics because a Rapid Link Supervision Protocol (RLSP) is used to detect a fault in anyone of the redundant links between the redundant switch matrixes and the application blades. And, a RLSP distribution policy is used to coordinate and control isolation measures between the redundant switch matrixes and the application blades. Also described herein is a method for providing resilient Ethernet connectivity in a network. | 2008-12-11 |
20080304478 | Communications Network - A distributed Internet Protocol communications network comprises a central control system comprising control processing means and at least one access point remote from the central control system for providing access to the packet based communications network. Under normal operating conditions the at least one access point is controlled by the control processing means. The network also comprises an emergency processing distinct from the central control system for controlling the lease one access point when there is a failure in the control processing means control of the at least one access point. | 2008-12-11 |
20080304479 | ONE-WAY MESSAGE NOTIFICATOIN WITH OUT-OF-ORDER PACKET DELIVERY - A multiprocessor computer system comprises a sending processor node and a receiving processor node. The sending processor node is operable to send packets comprising part of a message to a receiver, and to send a message complete packet after all packets in the message are sent. The message complete packet includes an indicator of the number of packets in the message, and the message is recognized as complete in the receiver once the number of packets indicated in the message complete packet have been received for the message. The sender tracks acknowledgment from the receiver of receipt of the sent packets; and notifies the receiver when it has received all packets comprising a part of the message. | 2008-12-11 |
20080304480 | Method for Determining the Forwarding Direction of Ethernet Frames - A method and switch for determining the routing direction of Ethernet frames in order to route them to a destination, e.g. a computer, by means of Ethernet switches, according to which a frame is received by a first switch are provided. The first switch determines that the source address of the frames is not a destination address that has been registered in the switch for the routing of frames. The source address is registered by the first switch as a new destination address for the routing of frames. The first switch then communicates the new destination address to a second Ethernet switch and when the destination address has been received, the second switch defines a routing direction for the frames to the new destination in the destination address. | 2008-12-11 |
20080304481 | System and Method of Offloading Protocol Functions - A method of communicating a packet sent from a sending processing element to a recipient processing element over a fast Ethernet network is provided, wherein an offload engine is used to process portions of the Ethernet protocol functions. The offload engine is a field-programmable gate array in communication with a switched fabric, and can send “fake” acknowledgements of a received packet to the sending processing element. If acknowledgement of receipt of the packet is not received by the offload engine prior to expiry of a timer, the offload engine will request the sending processing element resend the packet. | 2008-12-11 |
20080304482 | Device and method for communicating with a legacy device, network or application - A translation device allows communication between two entities that are not compatible. The two entities can include a legacy entity that uses an address format not compatible with a newer entity. The translation device receives a packet for the legacy entity and converts its address to one that is compatible with the legacy entity. The translation device may use different processes to convert the address in accordance with messaging protocols, packet configuration or the destination address desired. Once the packet includes a compatible address, the device sends the packet to the legacy entity. | 2008-12-11 |
20080304483 | SYSTEM AND METHOD FOR ACHIEVING ACCELERATED THROUGHPUT - Systems and methods for transporting data between two endpoints over an encoded channel are disclosed. Data transmission units (data units) from the source network are received at an encoding component logically located between the endpoints. These first data units are subdivided into second data units and are transmitted to the destination network over the transport network. Also transmitted are encoded or extra second data units that allow the original first data units to be recreated even if some of the second data units are lost. These encoded second data units may be merely copies of the second data units transmitted, parity second data units, or second data units which have been encoded using erasure correcting coding. At the receiving endpoint, the second data units are received and are used to recreate the original first data units. | 2008-12-11 |
20080304484 | METHOD FOR OPERATING MULTIPOINT CONTROL SYSTEM - The present invention provides method for operating a multipoint control system. It utilizes start packets pass through every one of controlled units which could be modified and transmitted to the next stage to achieve addressing for all of the system. The method comprises providing the multipoint control system, wherein the multipoint control system includes a plurality of controlled units serially connected, each of the controlled units has a execution unit and an interpretive unit, each of the interpretive unit has a data processing unit and a memory unit; transmitting an information stream by a controller, wherein the information stream includes a first start packet and a plurality of first data packets, the first start packet includes a first leading message, a first address, and a first length message; modifying the first address by each of the data processing units included in each of the interpretive units according to the first leading message and transmitting to the next stage; retrieving the first data packet corresponding to the first address by each of the interpretive units according to the first address, the first length message; and enabling each of the execution units included in each of the interpretive units according to content of each of the first data packets. | 2008-12-11 |
20080304485 | CENTRALLY CONTROLLED ROUTING WITH TAGGED PACKET FORWARDING IN A WIRELESS MESH NETWORK - Embodiments of the present invention include a method, an apparatus, and logic encoded in one or more computer-readable tangible medium to carry out a method. One method includes tagging packets and forwarding packets in a wireless mesh network using stored forwarding information for the tag, wherein the forwarding information is according to a centrally determined routing method and tag distribution method. | 2008-12-11 |
20080304486 | MULTIPLEXED DATA STREAM PROTOCOL - Multiplexed data stream protocols are described. In one embodiment, a method to provide a multiplexed data stream protocol includes packetizing a data stream to provide packets with headers and transmitting the packets through an interface which is not designed to use Internet Protocol (IP) addresses. The headers contain data for flow control and sequencing and are associated with a port for an application, and the headers allow multiple applications to maintain an arbitrary and changeable number of multiple concurrent sessions through the interface. The headers may be Transmission Control Protocol (TCP) like headers and may not include IP like headers. Systems, computer readable media, software architectures and other methods are also described. | 2008-12-11 |
20080304487 | Enhancing subscriber location tracking mechanism for voice over internet protocol services - A system for providing a Voice over Internet Protocol (VoIP) service has an Internet Protocol (IP) address detector for detecting an IP address assigned to a customer by an IP network during a VoIP communication session with the customer. An IP address database stores detected IP addresses. The IP address detector is configured for detecting a first IP address assigned to a customer during a first VoIP communication session with the customer, and for detecting a second IP address assigned to the customer during a second VoIP communication session with the customer. The second IP address is compared with the first IP address to produce an address change signal indicating a change in a physical location of the customer when the second IP address does not correspond to the first IP address. | 2008-12-11 |
20080304488 | NON-STOP SWITCHING EQUIPMENT FOR PACKET BASED COMMUNICATION LINKS - When packets reach from the | 2008-12-11 |
20080304489 | APPARATUS AND METHOD TO SET THE SIGNALING RATE OF A NETWORK DISPOSED WITHIN AN INFORMATION STORAGE AND RETRIEVAL SYSTEM - A method is disclosed to set the speed of a network. The method supplies a network interconnected with a system controller and a plurality of switch domains, where each of those plurality of switch domains comprises one or more information storage devices and a switch domain controller, and sets by each of the plurality of switch domains a signaling rate for that switch domain. The method queries in-band by the system controller each of the plurality of switch domains for that switch domain's signaling rate, and provides in-band by each of the plurality of switch domains the signaling rate for that switch domain. The method provides in-band by the system controller to each of the plurality of switch domains a first speed selection command specifying a first network speed, and resets by each of the plurality of switch domains the signaling rate for that switch domain to the first network speed. | 2008-12-11 |
20080304490 | Systems and computer program products for header suppression in a network that guarantees in order delivery of packets - A method and computer program product for providing RTP suppression across a DOCSIS network. An index number and a set of rules are sent to a receiver. The index number indicates the type of header suppression technique (i.e., RTP header suppression) to be performed, and the set of rules define how to recreate the RTP packets on the receiving end. At least one complete RTP packet is transmitted upstream for enabling a receiver to learn the RTP header. Subsequent RTP packets are transmitted upstream for reconstruction at the receiving end. The subsequent RTP packets are comprised of delta values representing fields that dynamically change from packet to packet in an RTP header. | 2008-12-11 |
20080304491 | RELIABLE MESSAGE TRANSPORT NETWORK - A multiprocessor computer system comprises a sending processor node and a receiving processor node. The sending processor node is operable to send packets comprising part of a message to a receiver, to maintain a message buffer entry in the sender comprising the sent packets, to track acknowledgment from the receiver that sent packets have been received; to maintain a timer indicating the time since message data has been sent, and to resend packets not acknowledged upon the timer reaching a timeout state. The receiving processor node is operable to send acknowledgement to the sender that received packets have been received, to track packets using a received message table to track which packets comprising part of the message have been received and whether all packets in the message have been received, and to process packets once all packets in a message are received to reassemble the received message. | 2008-12-11 |
20080304492 | VCAT TRANSMISSION SYSTEM AND VCAT BAND CONTROL METHOD - A source node or a sink node retains path information of a VC path and actualizes an efficient process in an LCAS process on the basis of the path information. This can actualize an efficient process procedure in the LCAS and reduce an amount of loss data. | 2008-12-11 |
20080304493 | ADAPTIVE DHT NODE RELAY POLICIES - In a distributed hash table overlay network, messages directed to a message ID are relayed one or more nodes that have published interest in that message ID. Messages are distributed, processed, and/or cached in accordance with relay policies, which enable a wide variety of different applications. Nodes to specify relay policies on a per-node, per-message, and/or per-message ID basis. Relay policies can specify any behavior associated with messages, including: message caching, distribution, and processing as well as migration of relay policies when nodes join or leave the network. Intermediate nodes can perform any arbitrary processing of message based on relay policies. Intermediate nodes can offload processing to other nodes, either by forwarding messages to a different message ID or by enlisting the help of nodes subscribed to the message ID. Messages can include one or more subfields specifying commands and/or data to be evaluated by the intermediate node. | 2008-12-11 |
20080304494 | COMMUNICATION DEVICE - A communication device comprising: a checking unit checking whether a bandwidth from the ingress of first path down to the egress thereof and a bandwidth from the ingress of second path down to the egress thereof as a standby of a partial zone of first path, are established or not; a route information management unit generating, when the checking unit confirms that the bandwidth from the ingress of first path down to the egress thereof and the bandwidth from the ingress of second path down to the egress thereof as the standby of the partial zone of first path are established, route maintaining information for maintaining the bandwidth of the partial zone of first path; and a transmission unit transmitting the route maintaining information generated by the route information management unit to the neighboring communication device on the side of the egress of first path. | 2008-12-11 |
20080304495 | SYSTEM FOR COMMUNICATING WITH AN INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM NETWORK - A system for communicating with an Internet Protocol Multimedia Subsystem (IMS) network is provided. A system that incorporates teachings of the present disclosure may include, for example, an intermediate node having a controller element to receive from a non IP Multimedia Subsystem (IMS) compliant node a Session Initiation Protocol (SIP) message having a calling party number and a called party number, and insert in the SIP message a request that instructs a receiving IMS-compliant node to bypass validation of the calling party number. Additional embodiments are disclosed. | 2008-12-11 |
20080304496 | Inferred Discovery Of A Data Communications Device - Methods, apparatus, and products for inferred discovery of a data communications device connected to a router, unreachable by a management module, and characterized by a device address are disclosed that include querying, by the management module, the router for connection data and identifying, by the management module in dependence upon the connection data, the device address. | 2008-12-11 |
20080304497 | Methods of route control in communications network - Methods of route control in a communications network are provided. In an example, routing information is received from a first router, the received routing information reporting at least one routing path between a first autonomous system and a second autonomous system. Next, a determination is made as to whether the reported routing path is superior to a previously known routing path. Filter instructions are sent to a given router instructing the given router not to report routing paths between the first autonomous system and the second autonomous system unless a routing path superior to one of the at least one reported routing path is received based on the determining step. In another example, filter instructions are received, from a given router, requesting a blockage of route reporting for routing paths between a first autonomous system and a second autonomous system which are inferior to a first routing path threshold. A determination is made as to whether to report known routes to the given router based on the first filter instructions. Second filter instructions are received, from the given router, the received second filter instructions requesting a modification to the first filter instructions. | 2008-12-11 |
20080304498 | Packet mirroring - Network devices, systems, and methods are provided for packet processing. One network device includes a network chip including logic and a number of network ports for the device for receiving and transmitting packets therefrom. The logic is operable to mirror packets on a per port per virtual local area network (VLAN) membership basis. | 2008-12-11 |
20080304499 | GATEWAY DEVICE, NETWORK SYSTEM AND DATA CONVERTING METHOD APPLIED TO VEHICLE USING PLURALITY OF NETWORK PROTOCOL DIFFERENT FROM EACH OTHER - The present invention relates to a gateway device, a network system and a data converting method using a plurality of network protocols different from each other. A gateway device includes a first communication controller connected to first device via a first bus in accordance with a first network protocol to exchange data with the first device in accordance with the first network protocol, a second communication controller connected to second device via a second bus in accordance with a second network protocol different from the first network protocol to exchange the data with the second device in accordance with the second network protocol, and a control unit interconverting the data in accordance with the first network protocol and the data in accordance with the second network protocol into each other so that the data is exchanged between the first device and the second device. | 2008-12-11 |
20080304500 | Architecture of Gateway Between a Home Network and an External Network - A Home Gateway (HGW) interconnects a Home Network (HN) and an External Network (EN), and is adapted to communicate with the HN and EN at a Network layer. HGW is provided with a Service Application Programming Interface Layer (SAPI Layer) capable of performing, at an Application layer, mediator functions for supporting communication and services between the HN and EN. Devices of the HN are able to communicate with devices of EN via the HGW, and to actualize services via the HGW. | 2008-12-11 |
20080304501 | TUNNELING SERVICE METHOD AND SYSTEM - A tunneling service method and system enabling data communication between different networks, in which an address of a tunneling service server used in a client node can be easily designated, the tunneling service method includes: transmitting an information request message, which requests information required for connection to the network, to a dynamic host configuration protocol (DHCP) server selected by the client node; receiving an acknowledgement message, which contains an address of the tunnel router, from the DHCP server selected by the client node; and the client node detecting the address of the tunnel router contained in the acknowledgement message and generating a packet for a tunneling service using the detected address of the tunnel router. | 2008-12-11 |
20080304502 | VEHICLE GATEWAY DEVICE, A COMMUNICATION DATA CONTROL METHOD AND COMPUTER PROGRAM PRODUCT THEREFOR - A vehicle gateway device is provided with a relay function unit ( | 2008-12-11 |
20080304503 | TRAFFIC MANAGER AND METHOD FOR PERFORMING ACTIVE QUEUE MANAGEMENT OF DISCARD-ELIGIBLE TRAFFIC - A traffic manager and a method are described herein that are capable of performing an active queue management of discard-eligible traffic for a shared memory device (with a per-CoS switching fabric) that provides fair per-class backpressure indications. | 2008-12-11 |
20080304504 | PCI Express Switch with Backwards Compatibility - There are disclosed apparatus and methods for switching. Transparent and non-transparent ports are provided. Data units are transferred between the transparent ports, between the transparent and non-transparent ports, and between the non-transparent ports. | 2008-12-11 |
20080304505 | PACKET TRANSMISSION CONTROL APPARATUS AND METHOD - A packet transmission control apparatus includes a plurality of controllers, an arbitrator, a BUSY control circuit, and a memory. The controller controls a transmission of a packet to an interface and manages a request for data to a memory and a reception of data from the memory. The arbitrator selects a controller to be used from among the plurality of controllers. The BUSY control circuit recognizes a BUSY state of a control unit at destination of a packet. The memory stores data to be requested. | 2008-12-11 |
20080304506 | MULTIPLE REQUEST INTERVALS - Methods and apparatuses are presented for communicating using a shared communication medium. A request is sent over the shared communication medium. The shared communication medium is organized to include a request signal space and a scheduled transmission signal space. The request signal space includes a plurality of request segments each having a different location within the request signal space. The scheduled transmission signal space includes a plurality of scheduled transmission segments each having a different location within the scheduled transmission signal space. The request occupies more than one request segment. Each of the more than one request segments is randomly selected by the first node. An assignment is received assigning the request to a transmission opportunity in the scheduled transmission signal space. The assignment is made in response to detecting at least one of the more than one request segments. A data transmission is sent using the assigned transmission opportunity. | 2008-12-11 |
20080304507 | QUASISYNCHRONOUS RESERVATION REQUESTS - Methods and apparatuses are presented for communicating using a shared communication medium. A request is sent in a request signal space where the request represents a code sequence that is a member of a set of code sequences. Each member is characterized by an autocorrelation function that has a peak centered at zero time offset. Each member is further characterized by a cross correlation function. The cross correlation function has a low correlation window having a width and surrounding a zero time offset. An assignment is received that assigns the request to a transmission opportunity in a scheduled transmission signal space. The assignment is made in response to detecting the code sequence from receiving multiple requests having relative timing offsets less than the width of the low correlation window. A data transmission is sent using the assigned transmission opportunity in the scheduled transmission signal space. | 2008-12-11 |
20080304508 | Time slot interchanger - There is provided a time slot interchanger for processing channel setting data functioning as control data for interchanging time slots of multiplexed transmission data. In the time slot interchanger, processing of the channel setting data based on alarm data is performed in accordance with a preset first transmission capacity, and with respect to the channel setting data in accordance with a preset second transmission capacity, processing of the channel setting data in accordance with the first transmission capacity is dispersedly performed in a time series manner. | 2008-12-11 |
20080304509 | OUT OF BAND SIGNALING ENHANCEMENT FOR HIGH SPEED SERIAL DRIVER - An integrated microelectronic serial driver is provided which is operable to transmit a differential pattern signal during a burst interval and a predetermined common mode voltage level during a second interval between adjacent burst intervals, the serial driver including at least one pre-driver and a driver coupled to an output of the pre-driver for transmitting the differential communication signal. A switching circuit is operable to switch the serial driver between a first power supply voltage level for the burst interval and the predetermined common mode voltage level, wherein the predetermined common mode voltage level is independent of variations in power supply voltage conditions and temperature conditions. | 2008-12-11 |
20080304510 | METHOD AND APPARATUS FOR CONTROLLING RADIO CONNECTION BASED ON INPUTS FROM APPLICATIONS - Techniques for detecting end of activity and controlling a radio connection are described. In one design, inputs may be received from at least one application exchanging data with a wireless communication network via a radio connection. Whether to maintain or close the radio connection may be determined based on the inputs from the application(s). In another design, flow preferences may be received from at least one application for data flows. The states of the data flows may be determined based on their flow preferences and inputs from the application(s). A data flow may be determined to be active or inactive based on its flow preference, inputs received from an application for the data flow, activity detected on the data flow, etc. Whether to maintain or close a radio connection may be determined based on the states of the data flows. The radio connection may be closed when all data flows are inactive. | 2008-12-11 |
20080304511 | DATA TRANSMITTING APPARATUS, DATA TRANSMITTING METHOD, AND RECORDING MEDIUM INCLUDING DATA TRANSMISSION PROGRAM - The present invention provides a data transmitting apparatus capable of switching a plurality of switches and performing different data transmission processes to effectively transmit data. | 2008-12-11 |
20080304512 | Context associating for context designated destination communication system - One aspect relates to associating an at least one identifiable person and/or identifiable communication device with an at least one context at least partially by specifying an at least one context designated destination that designates the at least one identifiable person and/or identifiable communication device based at least partially on the at least one context. | 2008-12-11 |
20080304513 | Method For Signaling of Splitting Information - A signaling method for signal division information is disclosed. The signaling method divides a signal into several signals, and effectively represents division information of the divided signals. The present invention provides the method signaling for signaling signal division information comprising: assigning number of lower nodes equal to the number of divisions to a lower layer if a node of an upper layer is represented by a division identifier (ID); and un-assigning any lower node to the lower layer if the node of the upper layer is represented by a non-division identifier (ID), wherein the signal division information includes the division ID and the non-division ID indicating the presence or absence of a signal division at a node of a layer. | 2008-12-11 |
20080304514 | METHOD AND APPARATUS FOR COMMUNICATING WITH A HETEROGENEOUS TERMINAL - Provided are a method and apparatus for communicating with a heterogeneous terminal, more particularly, a method and apparatus for communicating with a heterogeneous terminal in which the communication between terminals using different modulation methods can be initialized by transmitting throughout a network a preamble with a waveform that is commonly used in the network. The apparatus includes a preamble-generation unit which generates a preamble having a plurality of sequences corresponding to a combination of a modulation method and a waveform that are to be applied to a packet; and a communication unit which attaches the preamble to the packet and then transmits the packet. | 2008-12-11 |
20080304515 | COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A communication system includes a transmitting unit transmitting a packet data and a receiving unit receiving a packet data. The transmitting unit includes a first detection unit receiving a packet data transmitted using a first protocol, detecting a predetermined bit pattern in the received packet data, and determining the packet data in which the bit pattern is detected is a target of protocol conversion; and a first converting unit converting the first protocol of the determined packet data into a second protocol including a retransmission function, adding a tag indicating the protocol conversion to the converted packet data and transmitting the converted data. The receiving unit includes a second detection unit receiving the packet data transmitted using the second protocol and detecting the tag; and a second converting unit converting the protocol of the packet data in which the conversion tag is detected into a third protocol. | 2008-12-11 |
20080304516 | Distributed Joint Admission Control And Dynamic Resource Allocation In Stream Processing Networks - Methods and apparatus operating in a stream processing network perform load shedding and dynamic resource allocation so as to meet a pre-determined utility criterion. Load shedding is envisioned as an admission control problem encompassing source nodes admitting workflows into the stream processing network. A primal-dual approach is used to decompose the admission control and resource allocation problems. The admission control operates as a push-and-pull process with sources pushing workflows into the stream processing network and sinks pulling processed workflows from the network. A virtual queue is maintained at each node to account for both queue backlogs and credits from sinks. Nodes of the stream processing network maintain shadow prices for each of the workflows and share congestion information with neighbor nodes. At each node, resources are devoted to the workflow with the maximum product of downstream pressure and processing rate, where the downstream pressure is defined as the backlog difference between neighbor nodes. The primal-dual controller iteratively adjusts the admission rates and resource allocation using local congestion feedback. The iterative controlling procedure further uses an interior-point method to improve the speed of convergence towards optimal admission and allocation decisions. | 2008-12-11 |
20080304517 | IEEE 1394 TRANSMITTER, IEEE 1394 RECEIVER and AUDIO DATA CONTENT TRANSMISSION METHOD - There is provided an IEEE 1394 transmitter for transmitting a plurality of audio data contents, having an audio data generator configured to sample the plurality of audio data contents sequentially to generate format data of an audio data content; and an IEEE 1394 transmission controller configured to add an IEEE 1394 header packet to the format data of the audio data content. | 2008-12-11 |
20080304518 | Network device for embedding data in a data packet sequence - Techniques for embedding selected data in a data packet sequence are disclosed. Accordingly to one embodiment, a network device is deployed in an in-line fashion, preferably at a data traffic point along a network. Depending on the constraints of data packets in a data packet sequence from a website, the network device is configured to modify some of the data packets or fabricate new data packets to embed the selected data in the data packet sequence. By keeping the headers of the data packets substantially identical, changes to a data packet or addition of a new data packet become transparent to users as well as to the website. | 2008-12-11 |
20080304519 | METHOD FOR ETHERNET POWER SAVINGS ON LINK AGGREGATED GROUPS - This invention provides the ability to significantly lower the power consumed by a group of Ethernet links when organized in a Link Aggregation Group. When the server or switch senses low bandwidth utilization across multiple links in the group, it will negotiate the transition of un-necessary links to a lower power state. When the bandwidth requirements increases, the algorithm will quickly re-establish links and distribute the Ethernet traffic across the multiple links when necessary. | 2008-12-11 |
20080304520 | TIME-INTERLEAVED SIMULCAST FOR TUNE-IN REDUCTION - A system and method for providing faster tuning into a chosen program in a time-sliced multicast and/or broadcast transmission environment. Multimedia data of the same source material but of different transmission and presentation characteristics are coded and compressed. According to various embodiments, simulcast streams of a program are time-sliced, placed maximally apart from each other in terms of transmission time, and sent over the channel. | 2008-12-11 |
20080304521 | INTERNAL SIGNALING METHOD TO SUPPORT CLOCK SYNCHRONIZATION OF NODES CONNECTED VIA A WIRELESS LOCAL AREA NETWORK - This invention discloses a set of internal signaling (i.e., management primitives) to support a clock-synchronization protocol for wirelessly synchronizing clock registers of wired or wireless nodes via a wireless local area network (i.e., 802.11 network). The clock synchronization is performed between two higher-layer protocol entities residing within two different wireless stations (STAs). | 2008-12-11 |
20080304522 | Catalyst laser - Provided is a laser based on the formation of an inverted population in an atom or ion of an element wherein at least one oxidation state of the element serves as a catalyst with atomic hydrogen to form states that are lower in energy than that of the n=1 state of having a binding energy of 13.6 eV. The catalytic reaction between atomic hydrogen and the catalyst pumps the exited states of catalyst or species caused by the ionization of the catalyst as the reaction releases energy with the formation of atomic-hydrogen states with binding energies lower than those of uncatalyzed atomic hydrogen. In an embodiment, the system comprises a source of catalyst and hydrogen gases and a means to cause a plasma of these gases. The plasma dissociates molecular hydrogen to atomic hydrogen and ionizes the source of catalyst to form the catalyst. The catalyst looses one or more electrons during the catalytic reaction, and the recombination of electrons with the ionized catalyst creates an inverted population. | 2008-12-11 |
20080304523 | Method of increasing the contrast of a high-intensity laser - In the improved method for increasing the contrast of a high-intensity laser, signal light outputted from a laser oscillator, a preamplifier or the like is amplified by OPCPA which is excited by pump light having a short pulse width comparable to that of the signal light, thereby producing an extremely high contrast. | 2008-12-11 |
20080304524 | QUANTUM CASCADE LASER SUITABLE FOR PORTABLE APPLICATIONS - A highly portable, high-powered infrared laser source is produced by intermittent operation of a quantum cascade laser power regulated to a predetermined operating range that permits passive cooling. The regulation process may boost battery voltage allowing the use of more compact, low-voltage batteries. | 2008-12-11 |
20080304525 | Method for Internal Laser Marking in Transparent Materials and Device for Implementing Said Method - The invention concerns a method for internal laser marking in transparent materials, for example for marking an identifier ( | 2008-12-11 |
20080304526 | GREEN LASER OPTICAL PACKAGE - A green laser optical package includes a laser light source generating light of an infrared wavelength band, a harmonic wave generator converting an infrared light output from the laser light source into a second harmonic wave so as to output the converted second harmonic wave, and at least one support member attached to side surfaces of the laser light source and the harmonic wave generator. | 2008-12-11 |
20080304527 | Controlling a bias current for an optical source - In one embodiment, the present invention includes an apparatus having a current mirror with a current source coupled to a first terminal and an output current to flow from an output terminal, a laser coupled to the output terminal to be biased by the output current, and a comparator to compare a voltage of the first terminal to the voltage of the output terminal and gate the current mirror based on the comparison. Other embodiments are described and claimed. | 2008-12-11 |
20080304528 | Nitride semiconductor laser device and fabrication method thereof - In a nitride semiconductor laser device so structured as to suppress development of a step on nitride semiconductor layers, the substrate has the (11-20) plane as the principal plane, the resonator end surface is perpendicular to the principal plane, and, in the cleavage surface forming the resonator end surface, at least by one side of a stripe-shaped waveguide, an etched-in portion is formed as an etched-in region open toward the surface of the nitride semiconductor layers. | 2008-12-11 |
20080304529 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser device includes an active layer, a pair of guiding layers sandwiching the active layer, and a pair of cladding layers sandwiching the active layer and the pair of guiding layers. The pair of guiding layers are InGaAsP lattice-matched to GaAs. The pair of cladding layers are AlGaAs. The Al composition ratios of the pair of AlGaAs cladding layers are 0.4 or less. The Al composition ratios are set such that the refractive indices of the pair of AlGaAs cladding layers do not exceed those of the pair of InGaAsP guiding layers. | 2008-12-11 |
20080304530 | NITRIDE SEMICONDUCTOR LASER ELEMENT - A nitride semiconductor laser element comprises; a nitride semiconductor layer that includes a first nitride semiconductor layer, an active layer, and a second nitride semiconductor layer, and that has a cavity with end faces, and a first protective film that is in contact with at least one end face of the cavity, wherein the first protective film has a film structure in which bright and dark parts comprising a region in contact with the active layer and a region in contact with the first and second nitride semiconductor layers are observed under scanning transmission electron microscopy, or the first protective film has a film structure in which the crystallinity at a portion adjacent to the active layer is different from that at portions adjacent to the first and second nitride semiconductor layers. | 2008-12-11 |
20080304531 | Integrated broadband quantum cascade laser - A broadband, integrated quantum cascade laser is disclosed, comprising ridge waveguide quantum cascade lasers formed by applying standard semiconductor process techniques to a monolithic structure of alternating layers of claddings and active region layers. The resulting ridge waveguide quantum cascade lasers may be individually controlled by independent voltage potentials, resulting in control of the overall spectrum of the integrated quantum cascade laser source. Other embodiments are described and claimed. | 2008-12-11 |
20080304532 | SURFACE EMITTING LASER, SURFACE EMITTING LASER ARRAY, AND IMAGE FORMING APPARATUS USING SURFACE EMITTING LASER ARRAY - Provided is a surface emitting laser in which a reflector material is not limited, a film thickness of the reflector is uniform, and a single lateral mode operation can be performed at high light output power. The surface emitting laser includes a resonator including a first refractive index region located at a central portion thereof and a second refractive index region which is located at a peripheral portion thereof and is lower in effective refractive index than the first refractive index region. Further, the resonator is configured such that a resonator length of a region including the first refractive index region satisfies a resonance condition and a resonator length of a region including the second refractive index region does not satisfy the resonance condition. | 2008-12-11 |
20080304533 | STARTUP METHOD FOR GAS LASER UNIT AND GAS LASER UNIT HAVING STARTUP FUNCTION - A startup method capable of easily and inexpensively activating a laser oscillator by limiting an output current of a high-frequency power supply, without using a particular element or a complicated system, even when the laser oscillator is activated in a low-temperature environment, and a gas laser unit having such a function. According to the normal pressure control, the laser gas is gradually increased from pressure p | 2008-12-11 |
20080304534 | POWER SCALEABLE THIN DISK LASERS - A thin disk laser includes a thin disk of a host material incorporating a laser gain medium. The disk has opposite first and second surfaces, at least one of which is non-planar. The first surface is coated with a high reflectivity coating. The second surface has an anti-reflection coating thereon. The shape and mounting of the laser is such that mismatch of the coefficients of thermal expansion between the disk laser and the mount does not affect scaling of the laser to larger size disks for higher power lasers | 2008-12-11 |
20080304535 | Mirror Structure and Laser Device Comprising Such a Mirror Structure - For increasing the power emitted by surface emitting lasers and for improving the spatial coherence of the laser beam, emitted in particular by disk lasers, microchip lasers and VCSELs having a relatively wide emitting area, the invention proposes to select a low order transverse cavity mode by means of a mirror structure ( | 2008-12-11 |
20080304536 | High Intensity Laser or Diode-Based Lighting Apparatus Having Integrated Optics - A high intensity lighting apparatus ( | 2008-12-11 |
20080304537 | Threaded Pin, Carbon Electrode, and Electrode Assembly - Carbon electrodes have at least one socket with an internal thread to be mated with a threaded pin having at least one external thread. Also such a threaded pin is provided for connecting to such carbon electrodes. The internal thread or external thread of the carbon electrodes and/or the pins are provided with non-load bearing abutment thread windings. | 2008-12-11 |
20080304538 | Safety Device For Detecting Electrode Breakage - The invention relates to a safety device ( | 2008-12-11 |
20080304539 | ELECTROMAGNETICALLY HEATING A CONDUCTIVE MEDIUM IN A COMPOSITE AIRCRAFT COMPONENT - Nondestructive examination is performed on a composite aircraft component including a composite body and a conductive medium. The conductive medium is substantially more conductive than the composite body. The nondestructive examination includes applying an electromagnetic field that penetrates the composite body and heats the conductive medium, and creating a thermal image of the conductive medium to reveal conductivity information about the conductive medium. | 2008-12-11 |
20080304540 | SYSTEM AND METHOD FOR THERMAL ANALYSIS USING VARIABLE THERMAL RESISTANCE - A thermal measurement apparatus and method for performing heat flux differential scanning calorimetry (DSC) is disclosed. A variable thermal resistor is used to couple a measurement assembly to a heat sink in the thermal measurement apparatus, such that samples can be rapidly heated and rapidly cooled. The apparatus can be configured with a highly conductive sample assembly enclosure. The enclosure can include a high emissivity coating. In one embodiment, the enclosure extends along a longitudinal direction that is about the same as that of an infrared lamp assembly used to heat the enclosure, thereby increasing the efficiency of heating the sample enclosure. In one configuration, the variable thermal resistor comprises a gap whose gas composition can be varied during a sample measurement to independently optimize sample heating and cooling rates. | 2008-12-11 |
20080304541 | Ranking Fragment Types with Calorimetry - Test and reference groups of samples can be provided and concurrently combined and output signals can be provided. Each sample can have a volume not exceeding approximately 100 microliters, and each group can be provided in a region, such as in a cell of an array calorimeter. Each test group can include at least one fragment sample and one target sample, and its reference group can include similar samples. The output signals can include information about heat of reaction due to combining the fragment and target samples. For each target type, the output signals can be used to rank fragment types. For example, a subset of fragment types that react with the target type can be identified; an equilibrium constant or ligand efficiency can be obtained for each such fragment type; or a rank ordering can be obtained of such fragment types. | 2008-12-11 |
20080304542 | INFRARED HEATED DIFFERENTIAL SCANNING CALORIMETER - A heat flux differential scanning calorimeter (DSC) is disclosed. The DSC can be configured with a highly conductive sample assembly enclosure. The enclosure can include a high emissivity coating. In one embodiment, the enclosure extends along a longitudinal direction that is about the same as that of an infrared lamp assembly used to heat the enclosure, thereby increasing the efficiency of heating the sample enclosure. In one embodiment, a gas-filled thermal resistor is used to couple the measurement assembly to a heat sink, such that samples can be rapidly heated and rapidly cooled. | 2008-12-11 |
20080304543 | TEMPERATURE MEASURING APPARATUS AND TEMPERATURE MEASURING METHOD - A temperature measuring apparatus includes a light source, a first splitter, a second splitter, a reference beam reflector, an optical path length adjuster, a reference beam transmitting member, a first to an nth measuring beam transmitting member and a photodetector. The temperature measuring apparatus further includes an attenuator that attenuates the reference beam reflected from the reference beam reflector to thereby make an intensity thereof closer to an intensity of the measurement beam reflected from the temperature measurement object. | 2008-12-11 |
20080304544 | Vacuum Sensor - A micro mechanical vacuum sensor for determining the pressure within a cavity of a micro mechanical device is provided. The sensor comprises a substrate, at least one electrically conductive support member connected to the substrate, and a thermally resistive layer supported by the at least one support member and spaced from the substrate by the support member to provide a space between the thermally resistive layer and the substrate. The sensor is arranged such that the thermally resistive layer is substantially thermally insulated from the substrate. The sensor is further arranged to be driven such that the pressure within the cavity is determined by a temperature value sensed by the sensor. | 2008-12-11 |
20080304545 | SYSTEMS AND METHODS FOR DETERMINING A TEMPERATURE OF A FERROELECTRIC SENSOR - Systems and methods for determining a temperature of a ferroelectric sensor are provided. The ferroelectric sensor has operational characteristics defined by a polarization versus voltage hysteresis loop. In one exemplary embodiment, the method includes applying a symmetrical periodic voltage waveform to the ferroelectric sensor so as to induce the ferroelectric sensor to traverse the polarization versus voltage hysteresis loop. The method further includes monitoring voltages across the ferroelectric sensor and polarization states of the ferroelectric sensor over a first time interval to determine a first zero field polarization state and a first coercive field voltage. The method further includes determining a first temperature value indicative of the temperature of the ferroelectric sensor based on the first coercive field voltage. | 2008-12-11 |
20080304546 | SYSTEM TO CALIBRATE ON-DIE TEMPERATURE SENSOR - A system may include biasing of diodes of a temperature sensor disposed in an integrated circuit die using a current from an off-die current source, generation of a voltage based on the current and a temperature of the integrated circuit die, and determination of a first temperature based on the voltage. Such a system may further include amplification of the voltage using an oscillator and a chopper stabilizer, determination of a first amplified voltage associated with a first state of the oscillator and a second amplified voltage associated with a second state of the oscillator, and determination of a third voltage based on the first amplified voltage and the second amplified voltage, wherein determination of the first temperature based on the voltage comprises determination of the first temperature based on the third voltage. | 2008-12-11 |
20080304547 | TEMPERATURE MEASURING DEVICE - There is provided a temperature measuring device capable of achieving cost reduction even in the case where the same is a multichannel temperature measuring device. The temperature-measuring device comprises a thermocouple having two dissimilar metal wires, ends thereof, on one-side, being joined with each other, and the other ends thereof, being connected to one pair of contact terminals, respectively, a unit of a temperature-measurement set made up by joining together a plurality of the thermocouples, and a reference junction compensation circuit provided for every unit of the temperature-measurement set, wherein at least one of the reference junction compensation circuits of the temperature-measuring device is left out while the other reference junction compensation circuits of the temperature-measuring device are removed upon a plurality of the units of the temperature-measurement sets being disposed in series. | 2008-12-11 |