51st week of 2010 patent applcation highlights part 32 |
Patent application number | Title | Published |
20100322199 | Methods and Arrangements for Channelization Code Selection - A method of channelization code selection for up-link transmission of a wireless communication system is disclosed. The method comprises determining, based on a first power limitation indication value associated with a first terminal of the wireless communication system, if the first terminal is power limited; dynamically selecting at least one first channelization code associated with a first signal variation value for allocation to the first terminal so that, if the first terminal is power limited, the first signal variation value indicates a first minimal signal variation; and signaling an indication of the at least one first channelization code to the first terminal. Corresponding arrangements are also disclosed. | 2010-12-23 |
20100322200 | METHOD OF ALLOCATING UPLINK TRANSMISSION CHANNELS IN A COMMUNICATION SYSTEM - A method of allocating channels in a user equipment is disclosed. In particular, a method of allocating a plurality of Dedicated Physical Channels (DPCHs) and Enhanced Dedicated Channels (E-DCHs) in a user equipment of a multicode transmission system. The method includes determining whether a High Speed Downlink Shared Channel (HS-DSCH) is configured for the user equipment (UE) and determining a number of codes used by the DPCH and the E-DCH. The method further includes allocating the DPCH and the E-DCH channels to an I branch or a Q branch based on the number of codes used by the DPCH and the E-DCH and the HS-DSCH configuration. | 2010-12-23 |
20100322201 | METHOD OF ALLOCATING UPLINK TRANSMISSION CHANNELS IN A COMMUNICATION SYSTEM - A method of allocating channels in a user equipment is disclosed. In particular, a method of allocating a plurality of Dedicated Physical Channels (DPCHs) and Enhanced Dedicated Channels (E-DCHs) in a user equipment of a multicode transmission system. The method includes determining whether a High Speed Downlink Shared Channel (HS-DSCH) is configured for the user equipment (UE) and determining a number of codes used by the DPCH and the E-DCH. The method further includes allocating the DPCH and the E-DCH channels to an I branch or a Q branch based on the number of codes used by the DPCH and the E-DCH and the HS-DSCH configuration. | 2010-12-23 |
20100322202 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, AND METHOD FOR DETERMINING TRANSMISSION PARAMETER - A wireless communication system comprises a base station, wherein the base station performs scheduling for determining a resource block allocated to a mobile station, and determines a downlink transmission parameter based on a reception quality reported from the mobile station. The base station determines a transmission parameter by a predetermined first method for determining a transmission parameter when an identical resource block as a resource block allocated to any mobile station is allocated in an area adjacent to an area to which the mobile station is connecting, and determines a transmission parameter by a second method for determining a transmission parameter which selects a transmission parameter having a transmitting efficiency equal to or more than that by the first method for determining a transmission parameter when an identical resource block as a resource block allocated to any mobile station is not allocated in an area adjacent to an area to which the mobile station is connecting. | 2010-12-23 |
20100322203 | SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station. The method also includes transmitting to the base station an instruction to delay a reduction of a number of timeslots monitored by the user equipment to less than the first set of timeslots for communications. In some implementations, the instruction comprises at least one of a predetermined communication and a block including at least one of a dummy block format and a specified block format. The method may include transmitting a control block to the base station, the control block identifying one or more timeslots being monitored by the user equipment | 2010-12-23 |
20100322204 | SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for uplink communications between the user equipment and the base station using an Extended Dynamic Allocation (EDA) resource allocation algorithm. The method includes, after receiving the assignment of the first set of timeslots for uplink communications, reducing a number of timeslots monitored by the user equipment to less than the first set of timeslots for uplink communications, and transmitting uplink data to the base station using a non-EDA resource allocation algorithm. | 2010-12-23 |
20100322205 | SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station, reducing a number of timeslots monitored by the user equipment to a reduced set of timeslots, and receiving a second assignment of a second set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station. When the second assignment message assigns a number of timeslots that is less than or equal to at least one of the number of timeslots in the reduced set of timeslots and the first set of timeslots, the method includes continuing to monitor the reduced set of timeslots. | 2010-12-23 |
20100322206 | SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station, and reducing a number of timeslots monitored by the user equipment to less than the first set of timeslots for communications. The method includes, after reducing the number of timeslots monitored by the user equipment to less than the first set of timeslots for communications, transmitting a block to the base station, the block signaling a resumption of timeslot monitoring by the user equipment, wherein the block includes at least one of a dummy block format, a specified block format, and a predetermined communication, and increasing the number of timeslots monitored by the user equipment. | 2010-12-23 |
20100322207 | SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of timeslots within each of a plurality of contiguous radio blocks for at least one of uplink and downlink communications between the user equipment and the base station. After receiving the assignment of timeslots within each of a plurality of contiguous radio blocks, the method includes reducing a number of radio blocks and associated timeslots monitored by the user equipment. | 2010-12-23 |
20100322208 | SYNCHRONIZATION DEVICE AND SYNCHRONIZATION METHOD - There is provided a synchronization device capable of, even when transmission timings of a plurality of other ships are different, almost reliably synchronizing with the other ships during a transmission of a ship concerned and is also provided a synchronization method. The synchronization device | 2010-12-23 |
20100322209 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD FOR DETECTING ELECTRIC FIELD INTENSITY OF WIRELESS CHANNEL, AND PROGRAM STORING MEDIUM - A wireless communication apparatus includes a communication unit and a control unit. The communication unit periodically transmits a beacon signal to wireless terminal devices existing in a network using a use channel selected from wireless channels and to detect electric field intensities of the wireless channels. The control unit detects, by the communication unit, the electric field intensities of the wireless channels in a predetermined communication limiting period in a period during which wireless communication with an unspecified wireless terminal device existing in the network is prohibited in a period in which the beacon signal is transmitted. | 2010-12-23 |
20100322210 | 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 corresponds to the group to which the mobile unit is assigned. 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. | 2010-12-23 |
20100322211 | SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station using a dual-channel communications protocol is presented. The method includes identifying a first set of timeslots for uplink and downlink communications between the user equipment and the base station for a first channel and a second channel. The method also includes, after identifying the first set of timeslots for uplink and downlink communications between the user equipment and the base station for a first channel and a second channel, reducing a number of timeslots monitored by the user equipment to less than the first set of timeslots on at least one of the first channel and the second channel. In some implementations, the method includes, after reducing the number of timeslots monitored by the user equipment, transmitting a control block, the control block identifying one or more timeslots being monitored by the user equipment. | 2010-12-23 |
20100322212 | Optimization in heterogeneous networks - A heterogeneous wireless communication network includes a home access network with a home network characteristic and a home network policy, and a visiting access network with a visiting network characteristic and a visiting network policy. A packet data node gateway is adapted to communicate with the home access network and the visiting access network over a first communication path. An out-of-band communication path substantially separate from the first communication path is adapted to carry the visiting network policy from the visiting access network to the packet data node gateway. When the terminal is handed off from the home network to the visiting network, the packet data node gateway retrieves the visiting network policy, and the terminal accesses the visiting network over the first communication path using the visiting network policy. | 2010-12-23 |
20100322213 | SERVICE DISCOVERY IN A WIRELESS NETWORK - Embodiments of service discovery in a wireless network involve an Access Point (AP) proxy service to represent service providers. The AP manages service provider information, which is provided in response to service requests from service consumers. The AP proxy capability is advertised as a broadcast message in the wireless network. | 2010-12-23 |
20100322214 | WIRELESS NETWORK POLLING AND DATA WAREHOUSING - Methods and systems are provided to collect and update data on client devices connected to WiFi access points is provided. An inventory of WiFi cable modems and WiFi access points coupled to the WiFi cabled modems within a specific network is periodically collected. Internet Protocol (IP) addresses of WiFi cable modems and WiFi access points coupled to the WiFi cabled modems are periodically updated. Traps are periodically received from the WiFi access points. The traps are parsed to collect an inventory of client devices wirelessly connected to the WiFi access points and a time at which a client device connected to the WiFi access point. The WiFi access points are periodically polled to collect data on client devices, the data including a period of time that a client device has been connected to a WiFi access point and a physical location of the client device. | 2010-12-23 |
20100322215 | METHODS FOR CONTROLLING ACCESS DOMAIN SWITCHING, NETWORK NODES, USER TERMINAL AND COMPUTER PROGRAM PRODUCT THEREFOR - A technique for controlling an access domain selection is described. The technique is applicable to user terminals that are capable of switching from a first network access domain to a second network access domain while services are provided to the user terminals. According to a network aspect of this technique, a network node receives a request message from a user terminal. In response to this request message, the network node sends a rule set including one or more access domain switching rules to the user terminal. These access domain switching rules may be dynamically selected by the network node to control the access domain switching behaviour of the user terminal. | 2010-12-23 |
20100322216 | Method for controlling the steering of the roaming of user equipment in a wireless telecommunication network - The invention concerns a method for controlling the steering of the roaming of a user equipment (UE) by the HPLMN to which said UE is attached via a WLAN Access Point wherein said HPLMN sends a EAP Request Identity message to said UE including a SoR information (SoR Command) and said UE performs a network reselection based on said SoR information as soon as possible. | 2010-12-23 |
20100322217 | METHOD FOR SUPPORTING IDLE MODE IN WIRELESS LOCAL AREA NETWORK SYSTEM - Disclosed is a method for supporting an idle mode of a terminal in a wireless local area network (WLAN) system. In the method, a first request message for starting an idle mode is transmitted to a first access node to which the terminal is currently connected and a first response message with respect to the first request message is received from the first access node, and in this case, when the first response message includes acceptance information with respect to the start of the idle mode, the idle mode starts. | 2010-12-23 |
20100322218 | MULTI-USER, MULTI-MODE BASEBAND SIGNALING METHODS, TIMING/FREQUENCY SYNCHRONIZATION, AND RECEIVER ARCHITECTURES - A femtocell wireless signaling/data mesh network for multi-user, multi-mode baseband signaling methods, timing/frequency synchronization, and receiver architectures is disclosed. The femtocell wireless signaling/data mesh network includes a plurality of femtocells connected by a plurality of wireless links. A first femtocell of the plurality of femtocells directly communicates with a second femtocell of the plurality of femtocells via a wireless link between the first femtocell and the second femtocell. | 2010-12-23 |
20100322219 | Management frame directed cluster assignment within multiple user, multiple access, and/or MIMO wireless communications - Management frame directed cluster assignment within multiple user, multiple access, and/or MIMO wireless communications. From a first wireless communication device, a management frame may be transmitted to a number of other wireless communication devices to assign respective clusters (i.e., cluster being one or more channels within one or more bands) for use in communications by those other wireless communication devices. The first wireless communication device may be an access point (AP), and the others may be wireless stations (STAs); alternatively, all of the wireless communication devices in the communication system (e.g., including the first wireless communication device) may be STAs. The cluster assignment may be modified for any of a number of various reasons (e.g., periodically, after a certain number of packets being transmitted and/or received, communication system operating condition change, change in number, type, capabilities, etc. of the various wireless communication devices in the communication system, etc.). | 2010-12-23 |
20100322220 | METHOD AND DEVICE FOR REGULATING SENDING IN A WIRELESS TELECOMMUNICATION NETWORK - A method of regulating sending implemented by a station having at least one data packet to be sent via a wireless communication network comprises at least one step of obtaining a binary value representative either of an authorization to send, or of a prohibition to send, a step of sending said packet, said sending step being executed on condition that at least one criterion relating to the binary value or values obtained is satisfied, wherein the binary value or values are dependent on an index value assigned randomly to said station and a class of packets to which the packet to be sent belongs. | 2010-12-23 |
20100322221 | RADIO TRANSMITTING DEVICE AND RADIO TRANSMISSION METHOD - Each of radio frame multiplexing circuits generates radio frame data by multiplexing multiplexed data inputted from a LAN terminating circuit, into the transmission area of a radio frame, and by assigning the transmission area of the radio frame other than the area, to which LAN-received data is assigned, as the transmission area of PDH data signal strings; inserts data assignment information into a radio over-header; and transmits the data from a radio transmitting/receiving circuit to a remote device via a transmission line. Each of radio frame demultiplexing circuits demultiplexes the multiplexed data based on the data assignment information in the radio over-header. | 2010-12-23 |
20100322222 | SHARED PROCESSING BETWEEN WIRELESS INTERFACE DEVICES OF A COMMUNICATION DEVICE - An integrated circuit includes a first wireless interface circuit that transceives first packetized data with a first external device in accordance with a first wireless communication protocol, wherein the first wireless interface circuit includes a first processing module that processes the first packetized data. A second wireless interface circuit, coupled to the first wireless interface device, transceives second packetized data with a second external device in accordance with a second wireless communication protocol, wherein the second wireless interface circuit includes a second processing module that processes the second packetized data, wherein the second wireless interface circuit is operable to assign a first processing task to the first processing module and wherein the first processing task relates to the processing of the second packetized data. | 2010-12-23 |
20100322223 | BEAM FORMING METHOD AND APPARATUS - The present invention relates to a method of forming a random beam, and a beam forming apparatus. A quantization preprocessor and a random unitary matrix having a predetermined pattern are used to form a beam on a mobile terminal. A base station forms a beam using a codeword index of a quantization codebook received from a mobile terminal and channel quality information corresponding to the codeword index, and the mobile terminal generates the codeword index and the channel quality information using pilot signals generated by the base station. The number of pilot signals is equal to the number of transmitting antennas. Therefore, a codebook that has been known to both the mobile terminal and the base station is used, and the mobile terminal can select the codeword index for quantization, which makes it possible to selectively give diversity and thus improve the system efficiency. | 2010-12-23 |
20100322224 | SERVER, TERMINAL AND METHOD FOR END TO END CHANNEL CAPACITY ESTIMATION IN HIGH SPEED DOWNLINK PACKET ACCESS NETWORK - A server and a terminal enabling channel capacity estimation in a High-Speed Downlink Packet Access (HSDPA) network and a method of controlling the server and the terminal are provided. More particularly, when transmitting data between both terminals in an HSDPA network, a server end may transmit a packet pair of the same size and a client end may measure a time difference between the packet pair and thereby proceed filtering. Through this, it is possible to estimate the channel capacity. Therefore, it is possible to prevent data transmission from exceeding the channel capacity in the HSDPA to thereby prevent a packet loss and to effectively use a channel. | 2010-12-23 |
20100322225 | EFFICIENT CHANNEL ESTIMATION METHOD USING SUPERIMPOSED TRAINING FOR EQUALIZATION IN UPLINK OFDMA SYSTEMS - The present invention relates to channel estimation in uplink OFDMA systems and in particular to an efficient channel estimation method involving superimposed training for equalization in uplink OFDMA systems. The method is also directly applicable to the uplink in important linearly pre-coded versions of OFDMA like SC-FDMA. Importantly, the invention provides for the first time iterative time domain least squares based channel estimation method of superimposed training based uplink OFDMA/SC-FDMA wherein the training sequence for such channel estimation is optimal in terms of BER minimization. Hence the method according to the present invention is of improved accuracy and is well suited for practical implementation. The method of the invention can have wide application in various wireless communication systems and enabled devices, cellular systems, handheld devices, computers, PDAs and cell phones and the like. | 2010-12-23 |
20100322226 | Pilot signal in an FDMA communication system | 2010-12-23 |
20100322227 | METHODS AND APPARATUS FOR COORDINATION OF SENDING REFERENCE SIGNALS FROM MULTIPLE CELLS - Methods and apparatus for coordination of sending reference signals in wireless network are disclosed. A network node may select a cell ID based on a measurement of adjacent cells so as to mitigate interference. A network node may communicate information to another network node to control transmitted resources in a protected interval so as to measure channel characteristics. | 2010-12-23 |
20100322228 | POWER SUPPLY CONTROL IN A WIRELESS RECEIVER - A wireless receiver is activated periodically to measure the level of received signals. It measures the average received level over a plurality of the activation periods, and enables the supply of power to receiver circuitry dependent on the measured average value. In one embodiment the power is enabled if an increase in the average value is detected which is greater than a predetermined margin. The average value may be measured in a sliding or stepped window. In another embodiment the power is enabled if the level in an activation period exceeds the average value by a predetermined margin. | 2010-12-23 |
20100322229 | METHOD FOR ALLOCATING DYNAMIC TRANSMIT TIME INTERVAL - A method for allocating various transmit time intervals (TTIs) if a sub-frame structure is used, in a radio access system is provided. A transmitter transmits a super frame header including TTI information of a sub-frame included in a super frame to a receiver and transmits a sub-map including resource allocation information to the receiver, thereby dynamically allocating the TTI. Since the TTI information may not be received via the sub-map in every sub-frame, it is possible to prevent waste of a radio resource. | 2010-12-23 |
20100322230 | ARRANGEMENT AND APPROACH FOR TIME SLOT INDEX SYNCHRONIZATION FOR WIRELESS COMMUNICATIONS - The time slot index for wireless signals is synchronized using an approach that facilitates rapid synchronization acquisition and tracking synchronization recovery. According to an example embodiment, a synchronization circuit (e.g., | 2010-12-23 |
20100322231 | VOIP DEVICE AND METHOD FOR ADJUSTING INTERRUPT TIME THEREOF - A voice over Internet protocol (VoIP) device for providing VoIP service for a telephone includes a time detecting module and a time adjusting module. The time detecting module is operable to receive a dual tone multiple frequency (DTMF) signal, detect interrupt time of the DTMF signal, and determine whether the interrupt time is less than a predefined time interval. The time adjusting module is operable to adjust the interrupt time to the predefined time interval upon the condition that the interrupt time is less than the predefined time interval. | 2010-12-23 |
20100322232 | MODEM AND CALLING PACKET PROCESSING METHOD THEREOF - A modem to process calling packets includes receiving a calling request packet from a software phone of a communication terminal, and determining if the calling request packet includes a special tag. If the IP phone is idle, the modem records a source IP address of the calling request packet, and modifies the source IP of the calling request packet to be an IP address of the IP phone, then the modem transmits the modified calling request packet to a server, and receives a calling reply packet from the server, then modifies a destination IP address of the calling reply packet to be the IP address of the communication terminal. The modem transmits the modified calling reply packet to the software phone to establish the call. | 2010-12-23 |
20100322233 | Switchboard For Multiple Data Rate Communication System - A switchboard device and methods of operation of same are disclosed. Embodiments of the invention may provide a flexible means of interconnecting wideband and narrowband communications interfaces, where wideband communications interfaces may transfer low-band data and high-band data, and narrowband communication interfaces may transfer low-band data. Low-band data may be combined and sent to a narrowband communications interface or a wideband communications interface. High-band data may be combined and sent to a wideband communications interface. The low-band data may represent audio signals below a predetermined frequency, while the high-band data may represent audio signals above the predetermined frequency. The predetermined frequency may be, for example, approximately 4 kHz. The spectral mask of the low-band data may meet the spectral mask of G.712. Methods of operating embodiments of the present invention are included. An additional aspect of the present invention may include machine-readable storage having stored thereon a computer program having a plurality of code sections executable by a machine for causing the machine to perform the foregoing. | 2010-12-23 |
20100322234 | IP TELECOMMUNICATION SYSTEM, METHOD FOR CONTROLLING COMMUNICATION IN IP NETWORK, CLIENT TERMINAL AND CLIENT SERVER - A terminal including: a remote control section for transmitting and receiving data with respect to a main device which performs call control processing with a target device via a telephony server in place of the terminal; and a call communication section for performing audio communication with the target device, wherein the remote control section transmits a command including a calling request for the target device and an IP address of the terminal to the main device, and receives an IP address of the target device from the main device, and the call control section performs audio communication with the target device using the IP address of the terminal and the IP address of the target device. | 2010-12-23 |
20100322235 | METHOD AND SYSTEM FOR AUTHENTICATED FAST CHANNEL CHANGE OF MEDIA PROVIDED OVER A DSL CONNECTION - A method and system for fast channel changes of media that is provided by carriers over an xDSL connection to a home. Each customer's subscriber information is stored at the DSLAM that supports the xDSL connection to the home. Also, each DSLAM supports multicast protocols so that only one instance of a channel is provided on the core network regardless of how many customers have requested access to the channel. | 2010-12-23 |
20100322236 | METHOD AND APPARATUS FOR MESSAGE ROUTING BETWEEN CLUSTERS USING PROXY CHANNELS - An approach is provided for message routing among clusters via a proxy channel. A subscription request is received from a node within a local cluster. The subscription request is for a service. It is determined that the service is provided by a remote cluster. A transmission of the subscription request to a service platform of the remote cluster is initiated. The service is provided to the node via a proxy channel. | 2010-12-23 |
20100322237 | SYSTEMS AND METHODS FOR N-CORE TRACING - Described herein are systems and methods for aggregating performance data or trace data for a multi-core, multi-packet-engine networked appliance. A plurality of packet engines operate on the appliance and manage network traffic between a plurality of clients and a plurality of servers. In various embodiments, the system comprises a plurality of packet engines and an aggregator communicating with the packet engines through shared memory allocations. Each packet engine can write performance data or trace data to the a shared memory allocation. The aggregator can obtain the performance data or trace data and consolidate the data to provide unified performance data or unified trace data representative of the appliance. | 2010-12-23 |
20100322238 | METHOD, APPARATUS AND SOFTWARE FOR PACKET MODIFICATION - Embodiments provide an apparatus, method and software configured to modify a transmission control protocol packet so as to become a user datagram protocol datagram, or to modify a user datagram protocol datagram so as to become a transmission control protocol packet. An embodiment uses a mapping between TCP packet format, such as TCP wire packet format, and an UDP-encapsulated TCP packet format, such as UDP-encapsulated TCP wire packet format, allowing direct re-use of any TCP protocol implementation. TCP frames can be modified into valid UDP datagrams before being transmitted, and inverse modifications can be done when receiving datagrams from the network. | 2010-12-23 |
20100322239 | METHOD AND AN APPARATUS FOR PROCESSING PACKETS - The present invention discloses a packet processing method, which applies to a high-performance and scalable flow processing system architecture. The service board performs security processing for packets received from external devices by using the firewall function before sending them to the main CPU; similarly, the service board also performs security processing for packets sent from the main CPU by using the firewall function before the main CPU sends them to external devices. The methods of the present invention utilize high performance and good scalability of the new architecture. In a network with heavy and high-speed traffic, the service board performs security processing for packets by using the firewall function and then transmits the valid packets to the main CPU. Thus, the main CPU is protected by the firewall function against attack packets. | 2010-12-23 |
20100322240 | NO-SIGHT ROUTING FOR AD-HOC NETWORKS - A system comprising a plurality of nodes forming a network, the plurality of nodes comprising source nodes and destination nodes; wherein a propagation limit restricts the travel of link-state information transmitted by the sources nodes to a subset of destination nodes within the network. A network-layer protocol provided at a layer above that of the network facilitates communication between nodes within and outside of this subset of nodes. | 2010-12-23 |
20100322241 | ROLE AWARE NETWORK SECURITY ENFORCEMENT - Generating a binding between a source address and one or more roles of a user accessing the network and distributing the binding to a filter node. The source address is currently assigned to the device. The binding may be generated by one or more nodes on an ingress path used during authentication of the user. The binding may be distributed to the filter node on demand or without any request from the filter node. Responsive to a determination that the user is associated with a new source address, a new binding is generated to associate a new source address with the one or more roles for the user. The new binding is distributed to the filter node. Another aspect is a method of enforcing a role based security policy at a filter node, using bindings of source addresses to roles. | 2010-12-23 |
20100322242 | BUNDLING ATM AND POS DATA IN A SINGLE OPTICAL FIBER - A forwarding node decapsulates and encapsulates data. The decapsulation may be performed using pattern matching techniques and the encapsulation may be performed using pattern insertion techniques. The decapsulation and encapsulation are preferably performed by hardware devices such as application specific integrated circuits (ASICs) to enhance the speed of such operations. The decapsulation and encapsulation may be independent of each other and performed on a per virtual circuit basis. | 2010-12-23 |
20100322243 | SCHEDULER FOR TRANSMIT SYSTEM INTERFACES - A system balances bandwidth used by a data stream. The system receives data in the data stream and partitions the data into bursts. The system then identifies whether a size of a current one of the bursts is less than a size of a maximum burst associated with the data stream and schedules an additional burst in the data stream when the current burst size is less than the maximum burst size. The system transmits the current burst and the additional burst to balance bandwidth used by the data stream. | 2010-12-23 |
20100322244 | Utilizing Betweenness to Determine Forwarding State in a Routed Network - A set of critical nodes or links is identified on the network through which most of the shortest paths on the network occur. Each node compares their distance to end points on the network with a distance between the end points and each of the distinct critical nodes. Where the distance between the end points and the critical nodes is shorter than the distance between the end points and the node, the node is not on the shortest path and does not install forwarding state. Where the distance between the end points and the critical node is larger than or equal to the distance between the end points and the node, the node may be on the shortest path between the pair of end nodes and installs forwarding state. Installation of forwarding state may cause packet duplication, but determining forwarding state is dramatically simplified. The level of duplication may be reduced by selecting a larger number of critical nodes on the network. | 2010-12-23 |
20100322245 | ROUTING MANAGER HIERARCHY - There are provided a scalable method for mobility management applied to an IP-based network system including a plurality of routers and a plurality of servers, a part of which serve as a home routing manager (HRM), a part of which serve as local routing managers (LRM) for individual mobile nodes. The method at least comprises the steps of sending a first query about a routing address of a destination mobile node toward the HRM, based on an activation notification (AN) from an ingress access router (AR) of the plurality of routers, triggered by a source mobile mode, from an LRM receiving the activation notification; relaying the first query via one or more intermediate routing managers (IRM) closer to the HRM until the first query reaches the HRM; and in response to the first query, sending the routing address of the destination mobile node back to the ingress access router through the relay path from the HRM. | 2010-12-23 |
20100322246 | DISTRIBUTED OPERATION - A method comprises determining that at least one data portion is missing from a first data set; the first data set comprising a plurality of data portion; creating a second data set having a plurality of parts from the plurality of data portions; inserting an indicator for each data portion in the second data set; the indicator indicating the end of the respective data portion; and calculating which parts of the second data set are affected by one or more data portions which have not been received. | 2010-12-23 |
20100322247 | INTERNETWORK DEVICE - An internetwork device comprises a receiving module, an inter-device packet transfer interface, an inter-device packet transfer controller, an address translation module, and a transmission module. The receiving module receives a packet from a first network. The inter-device packet transfer interface carries out inter-device packet transfer involving transfer of a packet to or from another internetwork device. The inter-device packet transfer controller controls the inter-device packet transfers such that multiple fragmented packets created from a same original packet are collected by the same internetwork device, the fragmented packets being packets created by dividing a single original packet into multiple parts. The address translation module translates between a local address used within a specific network and a global address used across multiple networks, for at least one of a source address and a destination address of a packet. The transmission module transmits an address-translated packet to a second network. | 2010-12-23 |
20100322248 | COMMUNICATIONS NETWORK - A communications network for reliable data transfer from a first node and a second node via two channels. A first unreliable channel transfers data according to an unreliable communications protocol such as RTP. A second reliable channel transfers the same data according to a reliable communications protocol, such as TCP. At the second node, data parts missing from the data received from the first node via the unreliable channel is detected and corresponding data parts received from the first node via the reliable channel used. The RTP channel may be operated over UDP over multicast or unicast. The TCP channel may be supplemented by a multicast group or a peer-to-peer network. | 2010-12-23 |
20100322249 | DISCOVERING PATH MAXIMUM TRANSMISSION UNIT SIZE - Intermediate network devices, such as routers, are configured to discover a maximum transmission unit (MTU) for a path between two network endpoints by removing data from packets when the packet size exceeds a link MTU to a next hop. An example intermediate network device includes a forwarding engine to determine an interface card through which to forward a received packet and to determine a link MTU for a link corresponding to the interface card, wherein the received packet comprises a header and a payload, the header indicating not to fragment the packet, and a PMTU determination module to determine whether a size of the received packet exceeds the link MTU, and to remove a portion of data from the payload of the packet, discard the removed portion, and adjust the header of the packet according to the removed portion when the size of the received packet exceeds the link MTU. | 2010-12-23 |
20100322250 | SYSTEMS AND METHODS FOR DISTRIBUTED HASH TABLE IN A MULTI-CORE SYSTEM - The present invention is directed towards systems and methods for using a distributed hash table to maintain the same configuration and resource persistency across a plurality of cores in a multi-core system. The distributed hash table includes a plurality of partitions, each partition being owned by a respective core of the multi-core system. A core may establish resources in the partition it owns. A core may request other cores to establish resources in the partitions they own and send resource information to the core. The core may locally cache the resource information. | 2010-12-23 |
20100322251 | Method and System for Virtually Switching Digital Video/Audio and Auxiliary Control Signals for Digital Signage Applications - This invention is to use managed Ethernet switches, such as the 100 Megabit, 1 Gigabit, or 10 Gigabit Ethernet switches, to create virtual video switches for digital signage applications. Video switching is accomplished through dynamically configuring port-based virtual local area networks (VLAN). A dedicated VLAN is created for each video source to broadcast the video. All the digital signage displays joined to the VLAN will display the same content. The connection and removal of displays from the VLAN is controlled by centralized software. A converter at the video source converts the pre-compressed video source into Ethernet frames, or a compressor at the video source compresses the raw video in real time into Ethernet frames to be sent over the Ethernet switches. A decoder at the receiving side decodes the incoming Ethernet frames and outputs uncompressed digital video for display. Auxiliary control signals, such as serial ports, USB mouses, USB keyboards and generic I/O controls normally associated with digital signage applications, can also be switched in parallel with the video/audio. Compared to custom-designed video switches, Ethernet switches are widely available and inexpensive. Ethernet switches of various sizes, like 4, 8, 16, 32, 64 ports, etc., can be used in this way to create virtual video switches of virtually any size. Ethernet switches can be either stacked together at the same location to create a centralized video matrix switch or linked together through high-bandwidth trunks to create a distributed virtual video switch. Furthermore, while specialized video cable, such as coaxial or HDMI cables, can be rare and costly, Ethernet cables are widely available and inexpensive. The Ethernet cable is also the standard communication wiring in modern buildings, and is, in many cases, pre-wired. Overall, this virtual video switch solution increases flexibility and reduces engineering costs for digital signage applications. | 2010-12-23 |
20100322252 | SYSTEMS AND METHODS FOR HANDLING A MULTI-CONNECTION PROTOCOL BETWEEN A CLIENT AND SERVER TRAVERSING A MULTI-CORE SYSTEM - The present application is directed towards systems and methods for handling a multi-connection protocol communication between a client and a server traversing a multi-core system. The multi-connection protocol comprises a first connection and a second connection, which may be used respectively for control communications and data communications. Because different cores in the multi-core system may handle the first connection and second connection, the present invention provides systems and methods for efficiently coordinating protocol management between a plurality of cores. | 2010-12-23 |
20100322253 | Method and Apparatus for Simulating IP Multinetting - IP Multinetting on a local area network is simulated by performing VLAN translation at a port connecting to the local area network. This allows IP addresses from multiple subnets to be associated with a single VLAN on the Local Area Network (LAN), while allowing the core switch to process the packets with a one-to-one correspondence between IP Subnet and VLAN. When a packet is received from the local area network at an IP multinetting port, the VLAN ID will be read to determine if the packet contains the IP Multinetting VLAN ID. The IP Subnet address will also be checked to see if the packet is associated with an IP Subnet that is part of the Multinetting. If so, the multinetting VLAN ID will be changed to an IP Subnet specific VLAN ID before the packet is processed by the core switch. In the reverse direction, IP subnet specific VLAN IDs will be translated to the IP Multinetting VLAN ID. | 2010-12-23 |
20100322254 | Extended VLAN Classification - A bridge and method are described herein that translate at least a portion of a port VID (VLAN identifier) for an incoming tagged frame to form a relay VID for a corresponding relay tagged frame by using a VID mask table, a VID filter table, and a VID rule table. In an additional embodiment, the bridge and method also implement a port VLAN membership technique to ensure that an ingress port associated with the port VID is a member of the current VLAN. | 2010-12-23 |
20100322255 | PROVIDING CLOUD-BASED SERVICES USING DYNAMIC NETWORK VIRTUALIZATION - The invention is directed to providing cloud-based services using dynamic network virtualization. Embodiments of the invention provide a cloud-based service over a system that has a dynamic network virtualization architecture. The architecture includes a set of distributed forwarding elements with centralized control, and at least one virtual machine that is bound to one of the forwarding elements. These features enable the virtual machine to be migrated across a wide area network while maintaining its original IP address and service continuity. | 2010-12-23 |
20100322256 | USING DISTRIBUTED TIMERS IN AN OVERLAY NETWORK - The present invention extends to methods, systems, and computer program products for using distributed timers in an overlay network. Embodiments of the invention can be used to replicate timers within an overlay network and can be used to make progress towards completing a portion of work within the overlay network based on a replicated timer. Accordingly, embodiments of the invention can be used to increase the availability of timer data as well as compensate for node failures within an overlay network. | 2010-12-23 |
20100322257 | SENSOR NODE FOR USING ASYNCHRONOUS MAC - Provided is a Media Access Control (MAC) technology that may improve a data transmission performance in an asynchronous sensor network. The MAC technology may increase a waked-up time interval of a reception node to thereby continue to receive traffic from a transmission node, and change a frequency band where data is transmitted and received to thereby reduce occurrence of collision. Also, when the wake-up time interval of the reception node is similar to a wake-up time of a neighboring node, the wake-up time interval of the reception node may be moved to another time interval, thereby improving the data transmission performance. | 2010-12-23 |
20100322258 | METHODS AND APPARATUS FOR COMMUNICATING USING A GATEWAY COMMUNICATIONS DEVICE - Methods and a gateway apparatus for facilitating communication between communications devices which support different communications protocols are described. The gateway device may receive an identifier of interest from a first device which supports a first communications protocol but not a second communications protocol. The gateway monitors signals corresponding to the second communications protocol to detect signals corresponding to the identifier of interest. An externally perceivable alert is generated by the gateway device when a signal corresponding to the identifier of interest is detected. Communications is established between the first communications device and a second communications device with the gateway device performing protocol conversion to the extent required. The first device may power down its interface after sending the identifier of interest to the gateway and then power up the interface in response to sensing of the alert or input from a user responding to the alert. | 2010-12-23 |
20100322259 | SYSTEM AND METHOD FOR VOICE AND DATA COMMUNICATION - A method, device, and system for conducting communication over one or more communication networks. The method comprises determining a number, A, of simultaneously receivable communication paths at a receiving device; and selecting, based on A, a version of data for reception from a plurality of available versions. | 2010-12-23 |
20100322260 | SWITCH, NETWORK SYSTEM AND TRAFFIC MOVEMENT METHOD - In an FDB provided for a switch, line information associated with MAC address information is managed separately for sending destination line information and receiving discrimination line information, and provides an incompatibility permission flag of permitting that they are different. Also, a function of rewriting the sending destination line information with a command from a manager is provided and linked with the change of the incompatibility permission flag. While the traffic is moved to a new line at the time of the line switching, this incompatibility is permitted, and even if a frame is received from an old line, the receiving line is not updated based on the frame. | 2010-12-23 |
20100322261 | METHOD FOR IMPLEMENTING AN OPEN CHARGING (OC) MIDDLEWARE PLATFORM AND GATEWAY SYSTEM - The art of present discloses a method and system for enabling mobile network operators to collect charging information from various other network elements; and indeed, is intended to exploit the resiliency of open network architecture and lessen the requisite dependency on proprietary network elements services and billing systems. The Open Charging (OC) middleware platform and gateway system interacts with proprietary network elements and effectually creates a unifying, enabling layer in mobile networks. Indeed, the art is directed at permitting mobile subscriber access to, among others, third party content and services with the simplicity and convenience of such charges appearing on either mobile phone bill, or decremented from said mobile subscriber's pre-paid account. | 2010-12-23 |
20100322262 | METHOD AND APPARATUS FOR CONTROLLING REPORTING OF A MATCHING RESULT - A method and an apparatus for controlling reporting of a matching result are disclosed. A matching failure reporting parameter is set by the MGC onto the MG or is preset on the MG. In this way, the MG is controlled as to whether to report the result of a matching failure to the MGC or not report the result of the matching failure, and thus the system overhead is reduced and the operation efficiency is improved. | 2010-12-23 |
20100322263 | Method and Apparatus for Implementing Control of Multiple Physically Dual Homed Devices - A ring control protocol is used to establish a separate control plane for a plurality of physically dual homed devices to enable collections of dual homed devices to be represented by a single pair of addresses into the attached routed Ethernet network. The gateway devices analyze the passing ring control packets to create direct mappings for data packets to the routed Ethernet network. Thus, although the dual homed devices are treated as a ring from a control perspective, the data path is implemented to be direct so that data packets continue to flow directly from the dual homed devices to each of the attached gateway devices. In one embodiment, each of the gateway devices implements a virtual switch and advertises the MAC address of the virtual switch into the routed Ethernet network rather than the MAC addresses of each of the attached Ethernet Switch Units. | 2010-12-23 |
20100322264 | METHOD AND APPARATUS FOR MESSAGE ROUTING TO SERVICES - An approach is provided for message routing to services. A publish request associated with a service is received from a user equipment. A query is generated to determine a plurality of locations of the service. Each location corresponds respectively to a plurality of clusters. Transmission of the query is initiated to a home locator. The locations from the home locator are received. One of the locations is selected. Transmission of the publish request to the selected location is initiated. | 2010-12-23 |
20100322265 | SYSTEMS AND METHODS FOR RECEIVE AND TRANSMISSION QUEUE PROCESSING IN A MULTI-CORE ARCHITECTURE - Described herein is a method and system for directing outgoing data packets from packet engines to a transmit queue of a NIC in a multi-core system, and a method and system for directing incoming data packets from a receive queue of the NIC to the packet engines. Packet engines store outgoing traffic in logical transmit queues in the packet engines. An interface module obtains the outgoing traffic and stores it in a transmit queue of the NIC, after which the NIC transmits the traffic from the multi-core system over a network. The NIC receives incoming traffic and stores it in a NIC receive queue. The interface module obtains the incoming traffic and applies a hash to a tuple of each obtained data packet. The interface module then stores each data packet in the logical receive queue of a packet engine on the core identified by the result of the hash. | 2010-12-23 |
20100322266 | HARDWARE-BASED PARSER FOR PACKET-ORIENTED PROTOCOLS - The invention relates to the field of packet-oriented protocols. More particularly, the invention concerns a method of operating a protocol parser generated onto a predefined hardware structure. The protocol is packet-oriented and is hierarchically built from different fields in packets. According to the invention, it comprises: —a step of synthesis to define a parser architecture from the hardware structure; —a step of processing parser operations based on the hardware architecture. | 2010-12-23 |
20100322267 | TIME SYNCHRONIZATION SYSTEM AND TIME SYNCHRONIZATION METHOD IN TRAIN - An inter-vehicle network that connects monitoring and control devices communicating with an intra-vehicle network that couples in-vehicle devices with the monitoring and control devices. A train clock station at an uppermost level in a hierarchical structure and a vehicle clock station in a middle level in a hierarchical structure are established from the monitoring and control devices. Other devices are established as a correction information waiting station at a lowermost level in the hierarchical structure. The train clock station performs a time correction of its own station with time information that is arbitrarily obtained as reference time. The vehicle clock station performs a time correction of its own station based on a message transmitted from the train clock station. The correction information waiting station performs a time correction of its own station based on a message transmitted from the vehicle clock station. | 2010-12-23 |
20100322268 | Dynamic Compensator for Controlling Stresses on Fiber in Fiber Optic Cables - A dynamic compensator for a fiber optic cable having a jacket which is centered along a longitudinal axis, an elongated buffer tube surrounded by the jacket, and an elongated fiber surrounded by the buffer tube and dimensioned to move radially inwards and outwards within the buffer tube. The dynamic compensator includes a cable holder configured to receive and loop a portion of the fiber optic cable so that when the jacket elongates, the fiber extending along the loop is displaced radially inwards so as to release stresses upon end portions of the fiber, and when the jacket shrinks, the fiber is displaced radially outward to increase stresses upon the end portions of the fiber. | 2010-12-23 |
20100322269 | TUNABLE LASER - A tunable laser has a gain material and a mirror defining an external resonant cavity. A tunable Fabry-Perot etalon disposed along the optical path between the mirror and the gain material includes a liquid crystal layer having a variable refractive index to tune the transmission peaks of the etalon and the resonant frequency of the laser resonant cavity. A second etalon having a fixed set of transmission peaks can also be included in the laser resonant cavity. The tunable etalon is then tuned to select a resonant frequency corresponding to one of the transmission peaks of the fixed etalon. | 2010-12-23 |
20100322270 | INTRACAVITY FREQUENCY-CONVERTED OPTICALLY-PUMPED SEMICONDUCTOR LASER WITH RED-LIGHT OUTPUT - In a branched resonator OPS-laser arrangement, a combination of intra-cavity optical parametric generation and intra-cavity sum-frequency mixing provides output radiation in a range between about 550 nanometers about 700 nanometers from an OPS fundamental wavelength in a range between about 900 nm and about 1100 nm. | 2010-12-23 |
20100322271 | METHOD FOR DRIVING OPTICAL TRANSMITTER - A method to control an LD (laser diode) is disclosed. The method compares the operating temperature of the LD with a transition temperature. When the former temperature exceeds the latter, the modulation current is set based on the bias current, which is independently determined by the APC loop. On the other hand, the operating temperature is less than the transition temperature; the modulation current is determined by the operating temperature. | 2010-12-23 |
20100322272 | Minimizing power variations in laser sources - The present invention relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present invention, a projected laser image is generated utilizing an output beam of the semiconductor laser. A gain current control signal is generated by a gain current feedback loop to control the gain section of the semiconductor laser. Wavelength fluctuations of the semiconductor laser are narrowed by incorporating a wavelength recovery operation in a drive current of the semiconductor laser and by initiating the wavelength recovery operations as a function of the gain current control signal or an optical intensity error signal. Additional embodiments are disclosed and claimed. | 2010-12-23 |
20100322273 | LIGHT EMISSION DEVICE, LIGHT EMISSION DEVICE DRIVING METHOD, AND PROJECTOR - A light emission device includes: a first clad layer; an active layer disposed above the first clad layer; a second clad layer disposed above the active layer; a first electrode electrically connected with the first clad layer; and second electrodes electrically connected with the second clad layer, wherein at least a part of the active layer forms a plurality of gain areas, the plural second electrodes are provided in correspondence with the plural gain areas, the plural gain areas extend from a first side of the active layer to a second side of the active layer opposed to the first side while inclined to a vertical line of the first side in the plan view, at least a first gain area and a second gain area included in the plural gain areas form a set of gain areas, a plurality of the sets of the gain areas are provided, the first gain area and the second gain area included in each set of the gain areas are disposed in this order in a second direction perpendicular to a first direction extending from the first side to the second side in the plan view, the second electrodes disposed above the plural first gain areas are electrically connected with one another by a first common electrode, and the second electrode disposed above the plural second gain areas are electrically connected with one another by a second common electrode. | 2010-12-23 |
20100322274 | LIGHT TRANSMITTER AND AUTOMATIC POWER CONTROL CIRCUIT THEREOF - A light transmitter and an auto-control circuit thereof are provided. The circuit includes a driving module and a feedback module. The driving module is coupled to the feedback module and a load. The driving module provides a driving current for driving the load. The feedback module provides a bias signal to the driving module according to the change of the temperature, for adjusting the driving current and stabilizing an output power. | 2010-12-23 |
20100322275 | WHITE LIGHT-EMITTING LAMP AND ILLUMINATING DEVICE USING THE SAME - A white light-emitting lamp ( | 2010-12-23 |
20100322276 | GROUP-III NITRIDE SEMICONDUCTOR LASER DEVICE, AND METHOD FOR FABRICATING GROUP-III NITRIDE SEMICONDUCTOR LASER DEVICE - Provided is a group-III nitride semiconductor laser device with a laser cavity allowing for a low threshold current, on a semipolar surface of a support base in which the c-axis of a hexagonal group-III nitride is tilted toward the m-axis. First and second fractured faces | 2010-12-23 |
20100322277 | VERTICAL CAVITY SURFACE EMITTING LASER - A vertical cavity surface emitting laser includes, a lower DBR layer; an upper DBR layer; an active layer existing between the lower DBR layer and the upper DBR layer; and a laser emitting region provided on a surface layer of the upper DBR layer, in which the upper DBR layer includes a doped first semiconductor multilayer film layer and an undoped second semiconductor multilayer film layer; an electrode provided on the upper DBR layer is formed in a region which is on an upper part of the first semiconductor multilayer film layer and is surrounded by the second semiconductor multilayer film layer; the laser emitting region is formed on a surface layer of the second semiconductor multilayer film layer; and the surface layer of the first semiconductor multilayer film layer is formed by a contact layer and the second semiconductor multilayer film layer is stacked on the contact layer. | 2010-12-23 |
20100322278 | LIGHT EMITTING DEVICE - A light emitting device includes: a single crystal substrate having a plane tilted from a low-index plane and first and second cladding layers sandwiching an active layer, wherein the active layer includes first and second parallel side surfaces, part of the active layer constitutes first and second gain regions, a first side surface reflectance is higher than a second side surface reflectance, each of the first and second gain regions is disposed from a first side surface end surface to a second side surface end surface, the first gain region end surface partially overlaps the second gain region end surface so the end surfaces do not overlap each other in the first and second gain regions, a perpendicular of the first side surface is parallel to an off-direction of the substrate, and the first and second gain regions have equal lengths. | 2010-12-23 |
20100322279 | Multiwaveform Light Source - There is provided a light source apparatus including at least a excitation light source and a photocoupler, a light source medium formed of one kind of a single, rare-earth element doped fiber that is excited by the excitation light source and has two terminals, and an output end formed of an optical fiber, the light source apparatus being characterized in that an optical component having at least one of reflection, branching or attenuation function is provided in anywhere of an optical circuit from the light source medium to the output terminal and that it is possible to output lights of different wavelengths derived from different spontaneous emission light peaks that are generated from rare-earth element ions added to the rare-earth element doped fiber, and that at least one of the lights to be obtained is visible light. | 2010-12-23 |
20100322280 | Measurement Method of Distinguishing Dew and Frost Point Using Quartz Crystal Microbalance Dew-Point Sensor in Low Temperature - The present invention relates to a measurement method of dew-point in low temperature, and more specifically to a measurement method of accurately distinguishing dew-point and frost-point using a quartz crystal microbalance dew-point sensor in a low temperature of 0° C. or less. To this end, the present invention provides a measurement method of distinguishing dew and frost point using a quartz crystal microbalance dew-point sensor in low temperature, comprising the steps of: measuring a resonant frequency of a quartz crystal microbalance dew-point sensor while slowly dropping temperature; observing shock waves of the resonant frequency; and determining dew point or frost point through the observation of the resonant frequency and shock waves of the quartz crystal microbalance dew-point sensor. | 2010-12-23 |
20100322281 | Large Array Defferential Scanning Calorimeter, DSC Measuring Unit - Embodiments of the present invention feature a method and apparatus for an energetics-based approach to screen and to characterize binding interactions between potential therapeutic (or diagnostic) agents and unknown target molecules. The methods and apparatus detect the occurrence of these reactions, the strength of the binding interaction and possibly the rate at which these processes take place. | 2010-12-23 |
20100322282 | MULTI-SITE INFRARED THERMOMETER - An infrared thermometer includes a probe and an infrared sensor. The probe with an infrared target absorbs thermal radiation to provide a substantially consistent source of infrared radiation and an aperture for preventing contamination of the infrared target while permitting the transmission of thermal radiation to the target. The infrared sensor is configured for sensing infrared radiation from the infrared target. The infrared target is positioned within the probe such that it absorbs thermal radiation that comes from the aperture and thereafter emits thermal radiation to the infrared sensor. | 2010-12-23 |
20100322283 | MAGNETIC ELEMENT TEMPERATURE SENSORS - The temperature sensors ( | 2010-12-23 |
20100322284 | Method For Determining Power Semiconductor Temperature - A method for determining power semiconductor operating temperatures uses a database of measured temperatures. Each temperature is associated with operating conditions and determined by laboratory testing in an environment indicative of operation of the power semiconductors actual operations. | 2010-12-23 |
20100322285 | APPARATUS AND METHOD FOR MEASURING LOCAL SURFACE TEMPERATURE OF SEMICONDUCTOR DEVICE - An apparatus and method is described for measuring a local surface temperature of a semiconductor device under stress. The apparatus includes a substrate, and a reference MOSFET. The reference MOSFET may be disposed closely adjacent to the semiconductor device under stress. A local surface temperature of the semiconductor device under stress may be measured using the reference MOSFET, which is not under stress. The local surface temperature of the semiconductor device under stress may be determined as a function of drain current values of the reference MOSFET measured before applying stress to the semiconductor device and while the semiconductor device is under stress. | 2010-12-23 |
20100322286 | QUICK-RESPONSE THERMOCOUPLE FOR HIGH-SPEED FLUID - An object of the invention is to provide a thermocouple having a high response speed without receiving mechanical damages such as bending and curving even when it is used in a high-speed fluid. The invention provides a quick-response thermocouple for high-speed fluid in which a sheathed thermocouple having a small outer diameter that is formed by housing, in a metal sheath, a positive-side thermocouple filament and a negative-side thermocouple filament embedded within a powder of an inorganic insulating material, and by forming a temperature sensing point at a tip portion thereof by bonding the tips of the positive-side thermocouple filament and the negative-side thermocouple filament together at the tip portion thereof, is inserted in a protective tube having a large outer diameter so that the tip portion is exposed, in which a portion of the sheathed thermocouple that is exposed from the protective tube is inserted in a protective cylinder having a bottom cover with a hole on a tip side through which the sheathed thermocouple is inserted and having a plurality of through windows, the tip of the sheathed thermocouple is slightly exposed from the bottom cover of the protective cylinder, and the bottom cover of the protective cylinder and the sheathed thermocouple as well as the protective cylinder and a lower portion of the protective tube are welded. | 2010-12-23 |
20100322287 | Method and Apparatus for Multi-Radio Coexistence - A method for multi-radio coexistence receives historical frequency usage information and historical time usage information from a first radio. The method creates a time and frequency mask by extrapolating the historical frequency and time usage information to future times and frequencies when the first radio will be active and uses the time and frequency mask to schedule a second radio to avoid receiving when the first radio will likely be active. A related apparatus has a collocated radio input for receiving timing usage information, a non-collocated radio input for receiving frequency usage information, and a time and frequency mask generator for creating a time and frequency mask using the timing usage information and the frequency usage information. The method and apparatus predicts collocated and non-collocated radio activity in both the time and frequency dimensions to reduce interference among radios operating in overlapping or adjacent frequency bands. | 2010-12-23 |
20100322288 | RADIO COMMUNICATION APPARATUS AND OFFSET CORRECTION METHOD - An apparatus includes: an offset adjustment unit that supplies an offset correction signal corresponding to a frequency switching to an adder unit that receives an output from a mixer; a timing adjustment unit that adjusts the timing of a frequency switching signal supplied to a local oscillator and the timing of an offset correction amount switching signal supplied to the offset adjustment unit for changing an offset amount in correspondence with the frequency switching in the local oscillator; a noise amount measurement and calculation unit that receives a signal obtained by amplifying and filtering of the signal from the adder unit, to measure a noise amount of the signal and generates a timing determination signal based on the measured noise amount; and a control unit that controls the timing of the frequency switching signal and the offset correction amount switching signal supplied to the timing adjustment unit, based on the timing determination signal from the noise amount measurement and calculation unit. | 2010-12-23 |
20100322289 | CONSTANT AMPLITUDE ENCODING APPARATUS AND METHOD FOR CODE DIVISION MULTIPLEXING COMMUNICATION SYSTEM - Disclosed are an apparatus and method for constant amplitude encoding of a transmission signal in a CDM (Code Division Multiplexing) communication system. The apparatus for constant amplitude encoding of a transmission signal includes: an encoding module sequentially performing horizontal encoding and vertical encoding on an input signal; and a spreading and multiplexing module spreading the signal which has been encoded by the encoding module and multiplexing the spread signal in a vertical direction to output a data stream having a constant amplitude. | 2010-12-23 |
20100322290 | MODULATION AND DEMODULATION APPARATUS USING FREQUENCY SELECTIVE BASEBAND AND TRANSMISSION AND RECEPTION APPARATUS USING THE SAME - There is provided a communication method using a human body as a medium. A modulation apparatus using a frequency selective baseband according to an aspect of the invention may include: a serial-to-parallel conversion unit converting serial data supplied from an upper layer into parallel data consisting of M+1 number of data input bits; and a frequency selective spreader selecting one subgroup among a plurality of subgroups obtained by dividing 2 | 2010-12-23 |
20100322291 | Control Signaling for Multiple Carrier High Speed Uplink Packet Access in Radio Frequency Communication Systems - Systems and methods for providing an efficient mechanism for transmitting information needed to receive a secondary carrier over an existing message protocol on a primary carrier for a multiple carrier capable communications terminal. The receiver terminal may receive, on a primary carrier, a message containing information including a timing offset and a cell identification for a secondary carrier, for example. The communications terminal may then correlate a receiver to receive the secondary carrier without the need for a separate synchronization signal on the secondary carrier. These embodiments result in additional efficiency in a communications system. | 2010-12-23 |
20100322292 | Method and System for Channel Estimation in a Single Channel (SC) Single-Input Multiple-Output (SIMO) System - The method and system for channel estimation in a single channel (SC) single-input multiple-output (SIMO) system described herein may provide a fast and cost effective approach to concurrently determine propagation channel estimates in a single-transmit (1-Tx) and multiple-receive (M-Rx) antennas wireless communication system. A single weight baseband generator may comprise a set generator, a channel estimator, and an algorithm generator. The set generator may generate orthogonal function sequences that may be applied to the M receive antennas and may be utilized by the channel estimator to generate channels estimates. The orthogonal function sequences may be transferred to the channel estimator after a delay. The algorithm generator may generate phase values based on the channels estimates that may be applied to the M receive antennas to improve the system's signal-to-noise performance. | 2010-12-23 |
20100322293 | COMMUNICATION BETWEEN SUBMERGED STATION AND AIRBORNE VEHICLE - The present invention discloses a system for digitally modulated radio communication directly between a submerged underwater station and an airborne station. Each of the underwater station and the airborne station has or is associated with a radio communications antenna. Suitable radio communications antennas include loop antennas, solenoid antennas, stacked multiple loop antennas, planar arrayed loop antennas, a multiple resonant loop antennas. In some embodiments, the communications antennas of the submerged underwater station and the airborne station are each deployed horizontally thereby improving the efficiency of the signal transfer between the submerged underwater station and the airborne station. | 2010-12-23 |
20100322294 | HUMAN BODY COMMUNICATION DEVICE, HUMAN BODY COMMUNICATION SYSTEM AND METHOD USING THE SAME - A human body communication apparatus, a human body communication system, and a method using the same are provided. The communication apparatus is directly in contact with a human body and allows a small amount of current including a data signal to flow through the body so that information is communicated through the human body. | 2010-12-23 |
20100322295 | MULTICARRIER PACKET COMMUNICATION SYSTEM - Messages transmitted between a receiver and a transmitter are used to maximize a communication data rate. In particular, a multicarrier modulation system uses messages that are sent from the receiver to the transmitter to exchange one or more sets of optimized communication parameters. The transmitter then stores these communication parameters and when transmitting to that particular receiver, the transmitter utilizes the stored parameters in an effort to maximize the data rate to that receiver. Likewise, when the receiver receives packets from that particular transmitter, the receiver can utilize the stored communication parameters for reception. | 2010-12-23 |
20100322296 | SLOC SPOT MONITORING - Systems and methods for controlling transmission of signals are described. A camera-side modem is configured to receive two signals from a video camera and to extract a received passband signal from a transmission line. A detector in the camera-side modem generates an enable signal when the received passband signal is identified. The enable signal is used to control transmission of at least one of the baseband video signal and the passband video signal. The passband signal may be identified by an estimate of mean square error in a quadrature amplitude demodulator, a measurement of reliability provided by a constellation detector, a measurement of reliability based on a sequence of frame synchronizations and/or an estimate of mean square error in an equalizer. The detector may monitor a gain factor in an automatic gain control module of the camera-side modem and/or a magnitude of the received passband signal. | 2010-12-23 |
20100322297 | CARRIER PHASE OFFSET CORRECTION FOR A QAM SYSTEM - Systems and methods are described that may be used to detect and correct carrier phase offset in a signal. A phase offset corrector receives an equalized signal representative of a quadrature amplitude modulated signal and derives a phase-corrected signal from the equalized signal. The equalized signal is sliced to obtain real and imaginary sequences and a frame synchronizer performs a correlation of the real and imaginary sequences with corresponding parts of a stored frame-sync pseudo-random sequence. Phase correction is based on the maximum real and imaginary values of the correlation. The signal is typically quadrature amplitude modulated signal is modulated using punctured trellis codes. Quadrature phase shift keying modulation, 16-QAM, 64-QAM and other QAM schemes may be used. | 2010-12-23 |
20100322298 | DEVICE FOR EVALUATING SIDE-CHANNEL ATTACK RESISTANCE, METHOD FOR EVALUATING SIDE-CHANNEL ATTACK RESISTANCE, AND PROGRAM FOR EVALUATING SIDE-CHANNEL ATTACK - A side channel attack resistance evaluation apparatus includes: a measurement section that measures side channel information leaking from an encryption device to be evaluated; a noise removal section that removes noise from the measured side channel information using a band-pass filter (BPF); a passband determination section that determines the passband of the band-pass filter; and a DSCA (Differential Side-Channel Analysis) evaluation section that evaluates resistance against the differential side channel analysis. The passband determination section preferably has a DFT processing section and a power spectrum analysis section, or has a DFT processing and a DFA processing section. | 2010-12-23 |