11th week of 2009 patent applcation highlights part 31 |
Patent application number | Title | Published |
20090067387 | WIRELESS USER EQUIPMENT FOR USE IN REDUCING CROSS CELL INTERFERENCE - A method for reducing cross cell interference in a wireless time division duplex communication system using code division multiple access, the system having at least one user equipment (UE) and a base station (BS) is disclosed. The method begins by measuring an interference level of each timeslot at the BS. A timeslot is eliminated for additional uplink communication if the measured interference level exceeds a first threshold. UEs in nearby cells that are large interferers are identified and their downlink timeslot usage is gathered. A timeslot is eliminated for uplink communication for a large interferer UE that uses the timeslot for downlink communication. | 2009-03-12 |
20090067388 | Method and System for Mobile Receiver Architecture for US Band Cellular and VHF/UHF Broadcasting - In a video processing system, a method and system for a mobile receiver architecture for US Band cellular and VHF/UHF broadcasting are provided. Received channels may be processed in at least one radio frequency front end (RFFE) in a mobile terminal and may comprise at least one of a VHF/UHF broadcast channel and World band cellular channels capable of carrying voice and data. The cellular channels may be WCDMA 1900 or 850 MHz and GSM 1900 or 850 MHz. A single cellular/broadcast radio frequency integrated circuit (RFIC) may be utilized for processing the received channels. In another embodiment, a cellular band RFIC may process the EU band cellular channels and a broadcast RFIC may process the broadcast channel. Moreover, a first RFIC may process the WCDMA channels, a second RFIC may process the GSM channels, and a broadcast RFIC may process the broadcast channel. | 2009-03-12 |
20090067389 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD FOR UWB IMPULSE COMMUNICATION - Provided is a radio communication system for ultra wideband (UWB) impulse communications and a radio communication apparatus and method thereof. The present patent provides a radio communication system that can minimize power consumption by eliminating a need for carrier detection and sharing transmission/reception time information in UWB impulse communications. The system includes a network coordinator; and one or more devices communicating on a superframe basis in subordination to the network coordinator. The devices perform data transmission/reception in predetermined time slots and then they are inactivated to thereby reduce power consumption. | 2009-03-12 |
20090067390 | METHOD FOR SPECIFYING TRANSMITTING TIMES FOR CYCLICALLY SENDING OUT DATA MESSAGES, AND SUBSCRIBER DEVICE THEREFOR - A method for specifying transmitting times for cyclically sending out data messages ( | 2009-03-12 |
20090067391 | Separate Rank and CQI Feedback in Wireless Networks - A transmission of information within a wireless network may include a first and second type of feedback information, wherein the second type of feedback information is derived based on the first type of feedback information. The first type of feedback information is embedded in a configured frame every T1 frames. The second type of feedback is embedded in a configured frame every T2 frames, wherein T1 is greater than or equal to T2. A sequence of frames is transmitted from one node in the network to a second node on an uplink control channel. | 2009-03-12 |
20090067392 | FLOOR DETERMINATION FOR A WIRELESS DEVICE - An apparatus configured to acquire received signal strength intensities (RSSIs) for a wireless device from a plurality of access points (APs) located on a plurality floors. The apparatus is configured to determine which floor the wireless device is on by analyzing the RSSIs. In an example embodiment, the RSSIs are adjusted, and the adjusted RSSIs for each floor are summed. The floor with highest sum of adjusted RSSIs is determined to be the floor the wireless device is on. In an example embodiment, the floor that the wireless device is on is determined by calculating the probability that the wireless device is within the cell of each AP on the network, and combining the probabilities for each floor. Known RSSIs between APs can be employed for comparing measured RSSIs with the known RSSIs to determine the probability that the wireless device is within the cell of each AP. | 2009-03-12 |
20090067393 | Concentric rings wireless network architecture - A wireless network includes access points arranged in concentric rings and grids of concentric rings. At low network loads, only access points in the center are on to reduce power consumption. As network loads increase, access points in concentric rings are turned on. As network loads decrease, access points in concentric rings are turned off. | 2009-03-12 |
20090067394 | Mobile Network user Terminal Status Monitoring | 2009-03-12 |
20090067395 | Routing Network Requests Based on a Mobile Network Signature - Disclosed are systems and methods for responding to a web page request from a mobile device by providing the network address of a server hosting content formatted for the mobile device. The systems and methods include means and ways for redirecting a request for URL resolution from a DNS server to an enhanced DNS server with facilities to determine the kind of the requesting device, e.g., whether the requesting device is fixed or mobile. | 2009-03-12 |
20090067396 | METHOD AND SYSTEM FOR BLUETOOTH (BT) DELAYED ACKNOWLEDGEMENT (ACK) - A method and system for Bluetooth (BT) delayed acknowledgment is presented. Aspects of the system may include an initiator device, such as a WLAN access point (AP), which enables transmission of a protocol data unit, such as a BlockAckReq frame, to a responder device, such as a Smartphone, via a first network, for example a WLAN. The Smartphone may be equipped with capabilities that enable communication via WLAN and Bluetooth networks. The AP may wait to receive a response protocol data unit, such as a BlockAck frame, via the first network (WLAN) for a response time duration. The response time duration may be based on the communication slot time duration for communication by the Smartphone on a second network, for example a BT piconet. The communication slot time duration may correspond to the time duration for a BT slot. | 2009-03-12 |
20090067397 | PROCEDURE FOR WIRELESS NETWORK MANAGEMENT AND STATION SUPPORTING THE PROCEDURE - There is provided a procedure for wireless network management and a station supporting the procedure. In the procedure, non-AP station which wants to us a traffic filter service (TFS) transmits a TFS request message including one or more TFS request elements for defining information about the requesting traffic filters to an access point (AP). And, the non-AP station receives, from the AP in response to the first TFS request message, a TFS response message including one or more TFS response elements for defining information about the status of the requesting traffic filters. | 2009-03-12 |
20090067398 | Implementing Location Awareness In WLAN Devices - A set of global location signals, an SBAS (Satellite Based Augmentation System), or an ACI (ambient country identifier) signal can be used to automatically provide location awareness for a WLAN device. If one of the set of global location signals, the SBAS signal, or the ACI signal is detected, then the WLAN device can configure itself to comply with channel and power settings for the country/region having the detected signal(s). After configuration, the WLAN device can be “locked” to the country/region having the signal(s), thereby ensuring legal operation of the WLAN device even after subsequent restarts. If one of the signals is not detected, then the WLAN device can be configured in a default mode, e.g. an “open mode” in which end users can configure the WLAN device by entering a country of operation or a “common mode” in which the channel and transmit power settings meet global spectrum usage requirements. | 2009-03-12 |
20090067399 | Method and System for Imposing Air Interface Service Level - A method and system for providing services in communications networks. A gateway layer determines information about a communication session and responsively sends a signaling message to a session manager, providing the information. The session manager may then send a signaling message to a service agent, also providing the information. The service agent may in turn apply a set of service logic based at least in part on the information, so as to derive a service treatment, and the service agent may send a signaling message so as to cause an enforcement engine (such as the gateway or session manager) to carry out the service treatment. Advantageously, this arrangement may facilitate imposition of services across various types of communication sessions (such as voice sessions and/or data sessions) and access networks (such as circuit-switched and/or packet-switched), at session initiation and during the course of an ongoing session. A variety of useful services may thereby be provided. | 2009-03-12 |
20090067400 | METHOD OF SUPERVISING AT LEAST ONE TUNNEL SET UP FOR ROUTING PACKETS BETWEEN A MOBILE ROUTER AND A REFERRING EQUIPMENT ITEM IN A HOME NETWORK OF THE MOBILE ROUTER - A method supervises at least one tunnel set up for routing packets between a mobile router and a referring piece of equipment in a home network of the mobile router. The method detects a change in an availability state of the tunnel and sends notification of the change in the availability state of the tunnel to at least one node connected to the mobile router, and uses the tunnel set up for routing packets between itself and a network. | 2009-03-12 |
20090067401 | METHOD AND DEVICE FOR RECOGNIZING A SYNCHRONIZATION MESSAGE FROM A WIRELESS TELECOMMUNICATION DEVICE - A method of recognizing a synchronization message from a wireless telecommunications device comprising the steps of: dividing a series of known identification codes into a plurality of sections; processing and storing the sections of the known identification codes; dividing a signal received from the wireless telecommunications device into a plurality of sections; processing the sections of the received signal; and comparing the sections of the received signal with the sections of the known identification codes. | 2009-03-12 |
20090067402 | System and Method For Distributed Input-Distributed Output Wireless Communications - A system and method are described for dynamically adapting the communication characteristics of a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”). For example, a method according to one embodiment of the invention comprises: transmitting a training signal from each antenna of a base station to each of a plurality of wireless client devices, each of the client devices analyzing each training signal to generate channel characterization data, and receiving the channel characterization data at the base station; computing a plurality of MU-MAS precoder weights based on the channel characterization data, the combined MU-MAS precoder weights comprising a MU-MAS channel matrix; determining instantaneous or statistical channel quality (“link quality metric”) for the wireless client devices using mutual information of MU-MAS links or singular values of the MU-MAS composite channel matrix; determining a subset of users and a MU-MAS transmission mode based on the link quality metric; precoding data using the MU-MAS precoder weights to generate precoded data signals for each antenna of the base station; and transmitting the precoded data signals through each antenna of the base station to each respective client device within the selected subset. | 2009-03-12 |
20090067403 | Selecting Wider Bandwidth Channels in a Wireless Network - Techniques are provided for selecting channels for a wider bandwidth operation mode of a wireless network, such as wireless network that operates in accordance with the IEEE 802.11n amendment. Alignments of so-called primary and secondary channels are selected to mitigate interference. Interfering sources, such as other transceivers or external interferers, or the energy from their transmissions, are identified and channels are selected. The selected channels are analyzed to determine whether primary-secondary channel assignments for the selected channels are feasible. | 2009-03-12 |
20090067404 | APPARATUS AND METHOD FOR RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method for random access in a wireless communication system are provided. In the method, a random access response message is received. The random access response message is analyzed to determine a status of a random access process. A count variable value is updated according to the status. And the count variable value is compared with at least one reference value to determine a random access period. By adaptively changing the period of periodic ranging in a wireless communication system, the probability of success is increased while the waste of resources is decreased. | 2009-03-12 |
20090067405 | COMMUNICATION OF CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEMS - A wireless system has a high rate data channel for time multiplexed communications to multiple mobile stations (MSs). Control channels include a forward link common power control channel and reverse link feedback channels for pilot, forward channel quality, and data acknowledgements from each MS. An MS can have an active state for data communications, for which these control channels are used at the full (time slot) rate, or a control hold state, in which acknowledgements are not needed and the others of these control channels can be shared among a plurality of MSs in the control hold state and each using a reduced rate such as ½, ¼, or ⅛ of the full rate. The arrangement can support an increased number of active MSs, facilitating an increased total throughput on the high rate data channel, without increasing system resources for the control channels. | 2009-03-12 |
20090067406 | METHOD FOR BRANCHING DATA IN MOBILE COMMUNICATION TERMINAL - A method for branching data in a mobile communication terminal to perform data communication between a mobile station and a network which have media access control sublayers. In a data sending mode, each of the media access control sublayers of the mobile station and network attaches logical channel types based on traffic characteristic information and a radio bearer status to a media access control header contained in data to be sent. Then, each of the media access control sublayers branches the data to be sent, to transport channels corresponding to the attached logical channel types. In a data receiving mode, each of the media access control sublayers determines logical channels corresponding to logical channel types of a media access control header contained in received data. Then, each of the media access control sublayers branches the received data to the determined logical channels. Each of the media access control sublayers performs mapping and multiplexing/demultiplexing between logical channels and transport channels according to traffic characteristics to branch data. Therefore, it is possible to efficiently provide various multimedia and packet services. | 2009-03-12 |
20090067407 | KEEP-ALIVE FOR WIRELESS NETWORKS - A transmitting device transmits data to one or more receiving devices. At least one of the receiving devices transmits a keep-alive to the transmitting device. The keep-alive is transmitted at a reduced rate relative to the data transmission rate. In some implementations multiple receiving devices may transmit keep-alives. In these cases, each receiving device may transmit its keep-alives according to a schedule to prevent or reduce the likelihood of overlapping keep-alives. In some implementations a receiving device may be selected to transmit keep-alives. Here, if the selected receiving device stops transmitting keep-alives another receiving device is selected to transmit keep-alives. Through the use of the above techniques, the transmitting device need not keep track of which receiving devices are listening to the data transmission. Rather, the transmitting device may simply stop transmitting in the event that it no longer receives keep-alives. | 2009-03-12 |
20090067408 | CENTRALIZED CALL LOG AND METHOD THEREOF - The present invention relates to a method and system thereof, which comprises a communication network having at least a serving session network node, through which communication initiation requests of the communication network are routed. The system further comprises an application services providing network node, which interfaces with the serving session network node. The application services providing network node is configured for providing functions related to a group of several terminal devices of one user. A communication initiation request is addressed to the user on the basis of a user related identifier associated with the group of several terminal devices and comprised by the communication initiation request. A protocol network node is configured for registering protocol information about a communication session upon reception of a detection signalization indicating the communication initiation request to the user having the corresponding service available. | 2009-03-12 |
20090067409 | SYSTEM FOR COMMUNICATING BETWEEN INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM NETWORKS - A system that incorporates teachings of the present disclosure may include, for example, a Telephone Number Mapping system operating in a first IP Multimedia Subsystem (IMS) communication system having a controller adapted to receive first contact information of a communication device registered through a terminating Serving Call Session Control Function (S-CSCF) operating in a second IMS communication system and second contact information of at least one among an Interrogating CSCF (I-CSCF) of the second IMS communication system and the terminating S-CSCF. Additional embodiments are disclosed. | 2009-03-12 |
20090067410 | DETECTION OF SPIT ON VOIP CALLS - A method for packet telephony includes receiving over a packet communication network ( | 2009-03-12 |
20090067411 | Call Forwarding in an IP Multimedia Subsystem (IMS) - A method and Serving Call/State Control Function (S-CSCF) for handling a Session Initiation Protocol (SIP) communication within an IP Multimedia Subsystem (IMS), wherein the communication is subject to a call-forwarding operation handled by a SIP Application Server (AS). An INVITE is received at the S-CSCF, which serves a user equipment (UE) identified by an R-URI. The S-CSCF adds a URI for the S-CSCF to the INVITE route header together with an Original Dialog Identifier (ODI) mapped to the R-URI. The S-CSCF forwards the INVITE to the AS, which changes the R-URI to a URI of a UE to which the call is to be forwarded. The AS adds a forwarding indicator to the INVITE and returns it to the S-CSCF. The S-CSCF identifies the forwarding indicator and determines the original R-URI based on the ODI received in the returned INVITE. The S-CSCF determines call restrictions and Initial Filter Criteria (IFCs) based on the original R-URI. | 2009-03-12 |
20090067412 | METHOD FOR SUPPORTING MULTIPLE DEVICES FROM A BROADBAND CONNECTION - A method adds a MAC address per line for a multiline EMTA. After the EMTA initializes, the method creates “Virtual MTA” instances corresponding to each analog line/MAC address. The method facilitates MTA emulation of each of the Virtual MTA instances. For each virtual EMTA line, the emulation method includes acquiring an IP address via DHCP and acquiring a configuration file via TFTP for each virtual MTA instance. | 2009-03-12 |
20090067413 | PACKET NETWORK BASED EMERGENCY BACKUP TELEPHONE SYSTEM - In an emergency backup telephone system, members of an enterprise use their personal computers to log into an emergency communications web page. Upon logging in, software that enables the personal computer to act as a webphone is automatically downloaded. This software allows a person to initiate a call from personal computer to a conventional PSTN number destination using a PSTN gateway, or to another party's computer at a specified URL using VoIP telephony. Upon logging in, an authoritative index of employees reachable via the backup system updated to include information such as a phone number and/or IP address where the member can be reached in order to allow calls originating from the PSTN to be routed to the member's computer. The index is made available to other members of the enterprise via the enterprise's intranet, and, in some embodiments, to the public via a web page on the internet and/or email. | 2009-03-12 |
20090067414 | Systems and Methods for Communicating Documents - A system includes telephone and packet-switched network interfaces and a translator. The translator receives messages. Outgoing messages originate from a multiple-function peripheral (MFP) and are received via a transfer agent (TA). Outgoing e-mail messages include an attached file in an image file format. The translator removes and delivers the attachment in facsimile format. Incoming fax messages are attached to an e-mail message. The TA receives and relays the e-mail message to an identified MFP, which discards the e-mail message and prints the attachment. A method for processing fax messages includes associating an identifier with a MFP, receiving a fax intended for the MFP, generating an e-mail message with an attachment representing the fax and communicating the e-mail message to a transfer agent that relays the e-mail to the MFP, which discards the e-mail body and prints the attachment. | 2009-03-12 |
20090067415 | Optical network terminal with integrated internet protocol private branch exchange - Internet Protocol (IP) private branch exchange (IP-PBX) functionality may be provided on existing optical network terminal (ONT) hardware without support of an IP-PBX device by using a method of managing an IP-PBX that includes identifying IP configuration data on downstream network communications associated with at least one private IP branch exchange service received from an upstream node on a session initiation protocol (SIP) network and applying the configuration data to a node in an access network that supports the IP-PBX service. In this way, centralized configuration of IP-PBX services are supported, simplifying network management for service providers. | 2009-03-12 |
20090067416 | ALLOWING TCP ACK TO PASS A GATEWAY WHILE QUEUING DATA FOR PARSING - In one embodiment, a method for providing an ACK packet while queuing data is provided. One or more packets in a series of packets may be received from a client at a gateway. The gateway determines that a packet in the series of packets has not been received. The one or more packets are then queued. The queued packets may have included an ACK for one or more previously sent packets. Thus, if the gateway had forwarded the one or more packets that are queued, then the ACK would have been received by the server. However, the one or more packets are queued and thus the ACK included in the packets is not sent with the queued packets. Even though the plurality of packets are queued, an acknowledgement packet is generated and then sent for the previously sent packets. The acknowledgement packet acknowledges to the server that the one or more previously sent packets were received by the client. The server may then continue transmitting packets to the client and knows it does not need to retransmit the one or more previously sent packets. | 2009-03-12 |
20090067417 | Method and apparatus for supporting SIP/IMS-based femtocells - A femtocell is integrated into a core network so as to securely and efficiently deliver one or more mobile services to an end user on an existing mobile device over a broadband connection. This integration can be into a basic Internet Protocol (IP)-based network, or an IMS-based network. In an illustrated embodiment, a femtocell is integrated to a SIP- or IMS-based network using a “convergence” server. The convergence server preferably is a SIP-based fixed mobile convergence (FMC) application server that provides an all-IP approach to core network integration for femtocells. The convergence server provides a number of high level functions including secure access of an end user mobile device into the core network through the femtocell (which involves authenticating the femtocell as well as a specific end user mobile device), single number voice and messaging services (by updating an end user's location to be the femtocell), mobility (to support handover between the femtocell and macro cell networks), delivery of supplementary services (such as call waiting, call hold, caller ID, three-way calling, and the like) on the femtocell network, and the delivery of new and advanced services (such as home landline routing, mobile TV, multimedia downloads and the like). | 2009-03-12 |
20090067418 | Systems and Methods for Communicating Documents Via an Autonomous Multiple-Function Peripheral Device - A multiple-function peripheral device includes a packet-switched network interface and an autonomous application programming interface. The application programming interface requests image information from a remote server via the packet-switched network interface in a first mode of operation. The application programming interface sends image information to a remote device via the packet-switched network interface in a second mode of operation. | 2009-03-12 |
20090067419 | TRANSMISSION CONTROL APPARATUS AND METHOD - A transmission control apparatus capable of controlling the transmission of actual data from the beginning of the data transmission. Attribute information indicative of the attribute of data to be transmitted is notified by a transmission request source, which requests the transmission of the data, to a transmission request destination prior to the transmission of the data. A transmission control method (policy) for transmitting the data is established by use of a transmission quality that is required for the transmission of the data, which corresponds to the notified attribute information, in accordance with this attribute information. Then, the transmission of the data corresponding to the attribute information is controlled in accordance with the established transmission control method. | 2009-03-12 |
20090067420 | Location Determination for a Packet-Switched Device for Providing Location-Based Services - A device is operable to determine location of a packet-switched device, and the location is used to provide location-based services for the packet-switched device. The device includes an interface receiving a message. The message includes a tag inserted by an access point between the packet-switched device and the device. A database stores a plurality of tags and a location for each tag. The device parses the received message to identify the tag, and performs a lookup on the database using the tag to determine a corresponding location for the tag. This location is an estimation of a location of the packet-switched device, and the location is operable to be used to provide a location-based service for the packet-switched device. | 2009-03-12 |
20090067421 | Method and device for transferring digital information - A device and method for transmitting digital information, where the Transmission takes place from an information-providing entity ( | 2009-03-12 |
20090067422 | COMMUNICATION SYSTEM AND METHOD - A communication system and method include an intermediate router arranged to facilitate communication between any of a plurality of communication nodes over a data communications network. The intermediate router receives communications over the data communications network from a transmitting communication node for a receiving communication node. The communication includes a unique identifier of the transmitting and receiving communication node. The intermediate router includes a routing database, and is arranged to record the unique identifier of the transmitting communication node against the network address of the transmitting communication node from which the communication was received. The intermediate router is also arranged to route communications to receiving nodes by obtaining the recorded network address associated with the unique identifier of the receiving node and routing the communication to the recorded network address. The unique identifier is independent of the network address of a node to cater for changed in network address. | 2009-03-12 |
20090067423 | System and Method for Service Assurance in IP Networks - A system and method for providing service assurance in a data network is provided. Resource control points are positioned throughout a data network, such as an IP data network. The resource control points obtain network topology information and correlates that information with information associated with a particular service session. The resource control points utilize the correlated information to generate quality service records and to provide status information regarding the network topology and particular sessions. The resource control points may further retrieve link and utilization information to control sessions during periods of congestion. | 2009-03-12 |
20090067424 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A DATA BLOCK IN A WIRELESS COMMUNICATION SYSTEM - The invention provides methods and apparatus for transmitting and receiving a source data block in a wireless communication system using hybrid automatic retransmission request protocol. According to the scheme provided by the invention, at transmitting side, the source data block or part of source data block that is not decoded correctly at receiving side is divided into a plurality of data segments, each the plurality of data segments may be paded with known data to expand the data segments to be a predetermined lengthen, the data segment is encoded with linear code to be a data packet including the data segment and a redundancy information segment or including only redundancy information, and after that the encoded data packets are transmitted. At the receiving side, when each of the received data packets includes a data segment and a redundancy information segment, decoding is performed directly based on the received data packet, decoding is performed based on the received redundancy information segment and an data segment and redundancy information segment extracted from buffered data packets with a first and second chance to restore the data segment that is not decoded correctly in previous decoding processing. With the additional decoding chance, the scheme provided by the invention can improve decoding probability and thus the transmission efficiency of the system. | 2009-03-12 |
20090067425 | SWITCHING SOURCE DEVICE, SWITCHING DESTINATION DEVICE, HIGH SPEED DEVICE SWITCHING SYSTEM, AND SIGNALING METHOD - A session mobility for moving a session held between a switching source device and a communication counterpart to a switching destination device other than the switching source device. The switching source device transmits media data relating to a session by multicast or broadcast prior to device switching. The switching destination candidate device receives the transmitted media data, and thereby switching destination determined device, in replace of the switching source device, outputs media data. Thus, a switching time from a switching source device to a switching destination device can be made fast such that a user cannot perceive it. | 2009-03-12 |
20090067426 | Join message load control system and method in network using PIM-SSM - A Join message load control system in a network using a Protocol Independent Multicast-Source Specific Multicast (PIM-SSM) protocol, the Join message load control system including a source access hop router creating a SOURCE-INACTIVE message and transmitting the created SOURCE-INACTIVE message when a multicast traffic is not received from the multicast server during a set Keep-Alive Time (KAT), and the SOURCE-INACTIVE message including information on an update set time of a PIM Join message; and a group access hop router resetting the update set time of the PIM Join message when the SOURCE-INACTIVE message is received from the source access hop router. Accordingly, it is possible to reduce the periodical transmission of unnecessary Join(S, G) messages and thereby reduce traffic load in a network by adjusting a JP timer of the Join(S, G) message depending on whether a channel(S, G) is active or inactive. | 2009-03-12 |
20090067427 | ROUTING DEVICE, ROUTING MODULE AND ROUTING METHOD FOR AN ACCESS NETWORK - The invention relates to a routing device for an access network, a routing module therefor and a routing method for an access network. The routing device comprises forwarding means able to determine a destination device for a message sent by a sending device. The message contains an anycast address being assigned to a first possible destination device and at least one second possible destination device of a group of destination devices. The forwarding means are able to determine the first destination device or the at least one second possible destination device out of the group of destination devices by assignment data. The assignment data comprise a link between the sending device and the destination device. The assignment data comprise credential data and/or are determined by means of credential data of a user of the sending device. | 2009-03-12 |
20090067428 | Apparatus, Method and Computer Program Product Providing High Performance Communication Bus Having Preferred Path Source Routing, Multi-Guarantee QoS and Resource Reservation, Management and Release - Disclosed are methods, apparatus and computer program products, in accordance with exemplary embodiments of this invention, that provide a communication network having an enhanced data packet source routing procedure, that provide enhanced QoS functionality in a communication network where a first network protocol layer implements QoS with relative guaranties and best effort, while an underlying layer provides physical resource distribution between data pipes with absolute QoS guaranties, and that provide provides resource reservation, management and releasing for per flow resource management with strict/hard QoS guaranties. The communication network may employ optical and/or electrical data paths. | 2009-03-12 |
20090067429 | PACKET FORWARDING APPARATUS SUITABLE FOR FORWARDING EXTENDED FRAME - A packet forwarding apparatus (L | 2009-03-12 |
20090067430 | PARTIAL BUILD OF A FIBRE CHANNEL FABRIC - In one embodiment, a technique for performing partial build fabric operations when merging two or more Fibre Channel fabrics is provided. By maintaining a Principal Switch already assigned for one of two merging fabrics, a limited “partial build” may be performed for the other merging fabric. As a result, the time required for a Principal Switch selection phase may be greatly reduced. | 2009-03-12 |
20090067431 | HIGH PERFORMANCE NETWORK ADAPTER (HPNA) - A high performance network adapter is provided for forwarding traffic and providing adaptation between packetized memory fragment based processor links of multiple CPUs and multiple switch planes of a packet switching network. Low latency for short and long packets is provided by innovative packet reassembly, overlapping transmission, and reverse order transmission in the upstream direction, and cut through operation in the downstream direction. | 2009-03-12 |
20090067432 | METHOD AND SYSTEM FOR CONTROLLING A BACK-UP MULTIPLEXER IN A LOCAL COLLECTION FACILITY FROM A REMOTE FACILITY - A system and method suitable for processing television signals includes a remote facility and a local collection facility in communication with the remote facility. The local facility has a plurality of receivers receiving a plurality of channel signals and a plurality of encoders generating a plurality of encoded signals from the plurality of channel signals. The local collection facility includes a primary multiplexer multiplexing the plurality of encoded signals to form a first multiplexed signal and communicates the first multiplexed signal to the remote facility. A monitoring system at a remote facility commanding switching to a back-up multiplexer at the local collection facility. The back-up multiplexer multiplexing the plurality of encoded signals to form a second multiplexed signal and communicating the second multiplexed signal to the remote facility. The remote facility generating an output signal in response to the second multiplexed signal. | 2009-03-12 |
20090067433 | METHOD AND SYSTEM FOR CONTROLLING A BACK-UP NETWORK ADAPTER IN A LOCAL COLLECTION FACILITY FROM A REMOTE FACILITY - A system and method suitable for processing television signals includes a local collection facility that has a plurality of receivers receiving a plurality of channel signals a plurality of encoders generating a first plurality of encoded signals from the plurality of channel signals, a multiplexer multiplexing the first plurality of encoded signals at a multiplexer to form first multiplexed signals, an ATM switch forming a primary ATM circuit between the local collection facility and the remote facility, and an ATM network adapter forming first ATM signals from the multiplexed signals and communicating the first ATM signals to a remote facility through the primary ATM circuit and the ATM switch. The system also includes a remote facility that includes a monitoring system generating control signals to tear down the primary ATM circuit and communicating the control signal to tear down the primary ATM circuit to the local collection facility. The ATM switch tears down the primary ATM circuit in response thereto. The multiplexer multiplexes a second plurality of encoded signals at the multiplexer to form second multiplexed signals. The ATM network adapter and the ATM switch forms a secondary ATM circuit between the local collection facility and the remote facility and forms secondary ATM signals from the second multiplexed signals. The ATM adapter communicates the secondary ATM signals to the remote facility through the secondary ATM circuit. The remote facility generates an output signal at the remote facility in response to the secondary ATM signals. | 2009-03-12 |
20090067434 | ATM COMMUNICATIONS SYSTEM AND METHOD - Traffic from a number of different service type users is multiplexed into minicells for transmission over an ATM link. Service type information is transmitted in a service specific field and is stored. This stored information is used to derive length information to delineate the different length user minicells. The technique occupies less bandwidth than the conventional methods for transmitting cell length information. | 2009-03-12 |
20090067435 | SYSTEMS, METHODS AND COMPUTER PRODUCTS FOR A TCP/IP STACK TO NOTIFY AN APPLICATION OF A STATE CHANGE MADE TO ALL ROUTES OVER A SINGLE IPV4 INTERFACE - Systems, methods and computer products for a TCP/IP stack to notify an application of a state change made to all routes over a single IPV4 interface. Exemplary embodiments include a including creating a master socket to the TCP/IP stack, obtaining all IPV4 active and inactive home interfaces from the TCP/IP stack, building and maintaining a home interface hash table of the obtained home interfaces, obtaining all the IPV4 host and network routes from the TCP/IP stack, building and maintaining a route hash table of obtained host and network routes, determining that a route is active when the route's home interface is active, receiving a notification via the master socket from the TCP/IP stack in response to a state change occurring in a home interface, and changing a respective state entry of the home interface in the home interface hash table. | 2009-03-12 |
20090067436 | NETWORK ASSIGNMENT BASED ON PRIORITY - Systems and methods for network assignment based on priority are described in this application. In one aspect, a technique for network assignment based on priority relates to establishing a connection between a client and a virtual local area network (VLAN), based on an explicit or implicit network priority preference of the client. In an embodiment, multiple VLANs can be combined into one network bundle, the network bundle being a unit network for priority specification. In addition, multiple network bundles may be available for network assignment on a particular network controller (e.g., network switch). For example, the preferred network of a client may be comprised of several individual VLANs. Thus, the client can be assigned to any of the constituent VLANs included in the preferred network bundle. | 2009-03-12 |
20090067437 | METHODS, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR MANAGING ATM ETHERNET FLOWS - Methods, systems and computer program products are provided for associating multiple Ethernet flows between a transceiver/uplink endpoint and a subscriber endpoint over an underlying ATM VCC including generating an ATM VCC record having a first endpoint identifier corresponding to a subscriber device such as a passive optical network (“PON”) or digital subscriber line (“DSL”) device and a second endpoint identifier corresponding to a transceiver card, such as a GigE card. | 2009-03-12 |
20090067438 | METHOD, APPARATUS AND PROGRAM FOR TRANSFERRING DATA - A method, apparatus, and program for allowing a first transmitting apparatus among a plurality of transmitting apparatuses connected to a network to transmit data packets to the network. The method includes: receiving a control packet transmitted from a second transmitting apparatus among the plurality of transmitting apparatuses, judging whether the received control packet indicates permission for the first transmitting apparatus to transmit data packets, and also, transmitting data packets in response to the judgment that the permission is indicated, or receiving an additional control packet in response to the judgment that the permission is not indicated; and, transmitting a new control packet indicating, as a transmitting apparatus permitted to transmit data packets subsequently, one transmitting apparatus selected by a predetermined rule from the plurality of transmitting apparatuses, on condition that the transmission of the data packet is completed. | 2009-03-12 |
20090067439 | DATA COMMUNICATION SYSTEM - A method and a system for speeding up session establishment are provided, wherein the time required to establish a session is reduced, even in the case where a session management server requires a large amount of time to process respective functions required for establishing the session (such as making a decision regarding whether to permit or deny provision of a service, or generating a session key). | 2009-03-12 |
20090067440 | Systems and Methods for Bridging a WAN Accelerator with a Security Gateway - The solution described herein provides systems and methods for the interoperability of network processing programs that process network packets at different levels of the network stack. This solution bridges the communications of a network packet between a first network processing program operating at a first level of a network stack in an intermediary and a second network processing program operating at a second level of the network stack of the intermediary. The first network processing program may modify an incoming network packet so that the packet may traverse the network stack to an upper level of the stack to the second network processing program. After processing the network packet at the upper layers of the stack or by the second network processing program, the first network processing program modifies the network pack in order to transmit the packet to the intended destination while traversing the intermediary. | 2009-03-12 |
20090067441 | Multi-interface wireless adapter and network bridge - Among other things, a wireless device is disclosed for enabling communication with a gateway device within a user premises. The wireless device includes a wireless local area network transceiver for bidirectional wireless data communication at the premises, an interface for wired communication, a processor for converting data between the wireless and wired interfaces. The wireless device receives instructions from the gateway device via the transceiver or the interface and implements conversion and communication control functions to implement a selected one of a plurality of wireless-wired adaptations for communications flowing between the selected one of the transceiver and the interface and the other of the transceiver and the interface for communication within the user premises for application service delivered by the gateway device. | 2009-03-12 |
20090067442 | METHOD AND SYSTEM FOR MANAGING MULTIPLE NETWORKS OVER A SET OF PORTS - A system has a switch that allows virtual private networks to be created dynamically. The system includes at least one network. The system also includes a computer having an address. The system also includes a plurality of ports for coupling to the computer. The system also includes a switch that assigns one of the plurality of ports to a private network according to the address of the computer. The switch assigns the port by correlating the address with an address list. | 2009-03-12 |
20090067443 | Method for Network Visualization - A method of visualizing network data includes parsing a collection of packets in accordance with a set of categories related to characteristics of the collection of packets, the categories including listings of categorical elements, wherein at least some of the categorical elements are selectable by a user. When a categorical element is selected by a user, the collection of packets is filtered in accordance with the selected categorical element. Alongside each categorical element is a selectable count value that is indicative of the number of discrete communications sessions in which an associated categorical element is present in the collection of packets. When the count value is selected, a session view or views is/are created for each respective session, with content payload available for review and viewing. | 2009-03-12 |
20090067444 | Virtual networks in a communication system architecture - A method may include assigning to one or more I/O channels masks of message types that may pass through the channels, and when a message is sent or received, assigning to the message a channel having a mask that matches a type of the message. | 2009-03-12 |
20090067445 | ROUTER AND ROUTING NETWORK - A router in which each of the input/output ports is associated with identifiers enabling each of the other input/output ports to locate it according to a code specific to each of them, comprising means for identifying in an incident packet a routing instruction indicating a forward identifier of the desired output port; and means for sending back the packet where the forward identifier is suppressed from the routing instruction and a return identifier is inserted therein. | 2009-03-12 |
20090067446 | Multi-part parsing in a network device - A network device for processing data on a data network includes a plurality of ports configured to receive data from a data network and to send processed data to the data network, and a multi-part parser configured to parse the data received. The multi-part parser comprises several parsing blocks configured to serially parse the data, with each block designated to parse particular values and where each block but a first block receives parsed data from a prior block with the particular values at a zero offset position. | 2009-03-12 |
20090067447 | Wireless channel selection techniques and devices - Techniques for locating wireless channels usable for transmitting media signals from personal media players that are adequately separated from wireless channels used for other purposes. One technique involves identifying a target channel and at least two additional channels within a certain proximity of the target channel, and evaluating a channel usability algorithm based on characteristics, such as the received signal strengths, of the target channel and the received signal strengths of each of the proximate channels. Based on evaluation of the algorithm, the target channel is deemed either usable or not usable to transmit the media signal. The most desirable available target channel(s) in a particular group or sub-group of wireless channels may also be identified. | 2009-03-12 |
20090067448 | Contention-Based Communication - For an example embodiment, a method for a communication device operating in a synchronous communication system is described. The method includes performing a listen-before-talk (LBT) procedure prior to the start of a downlink subframe of a synchronous frame and determining if a transmission from another communication device of another communication system is detected during the LBT procedure. In the case that a transmission is detected during the LBT procedure, the communication device refrains from transmitting during the downlink subframe. In the case that a transmission is not detected during the LBT procedure, the communication device transmits during the downlink subframe. | 2009-03-12 |
20090067449 | Integrated system and method for interactive communication and multimedia support in vehicles - An integrated system for interactive communication and multimedia support in a vehicle. The system includes a plurality of peripheral devices and a central control unit. Each of the peripheral devices is configured to be installed in the vehicle. The central control unit is also configured to be installed in the vehicle and has a communication interface. The communication interface includes first and second communication platforms and communicates with the plurality of peripheral devices via at least one of the first and second communication platforms. Each communication platform is configured to support bi-directional and selective communication between each of the peripheral devices. | 2009-03-12 |
20090067450 | METHOD AND SYSTEM FOR ENCODING OR DECODING A SEQUENCE OF DIGITAL DATA - A method is provided for encoding and decoding a sequence of digital data, according to which a portion of the sequence of digital data corresponds to a data block that includes several data packets, at least two data packets per data block containing an identifier. The position of the data packet within the corresponding data block can be determined based on the identifier, and the data is encoded or decoded by taking into account the identifier. | 2009-03-12 |
20090067451 | System and method for extending DSL transmission range - A system and method is provided to extend transmission range of a digital subscriber line (DSL). In one embodiment, a method includes receiving an input signal including a broadband data signal having a first signal strength and a telecommunication signal. The broadband data signal may be separated from the telecommunication signal. The broadband data corresponding to the broadband data signal may be regenerated, wherein the regenerated broadband data signal has a second signal strength which is greater than the first signal strength according to an embodiment of the invention. According to another aspect of the invention, the regenerated broadband data signal may be merged with the telecommunication signal into an output signal and the output signal may be transmitted over a subscriber line. | 2009-03-12 |
20090067452 | SYNCHRONIZATION USING MULTICASTING - A process to synchronize information transmitted from an information provider to a plurality of network elements is provided. The process determines a temporal difference between related network elements and compensates for this difference by dilating an information signal provided to at least one of the network elements to resynchronize the data presented to the network elements. The process is repeated periodically in order to maintain a desired synchronization level. | 2009-03-12 |
20090067453 | Laser Light Source and Optical Device - A laser light source is provided with a pump light source ( | 2009-03-12 |
20090067454 | Power Stabilization Of Semiconductor Laser Harmonic Frequency Conversion Modules - The invention relates to a fiber laser and harmonic frequency conversion module incorporating a 90 degree Polarization Maintaining (PM) fiber fusion splice therebetween for providing temperature insensitive power stabilization. The present invention has found that incorporating at least one 90 degree splice of the transmission axes of the PM fiber, coupling a fast axis to a slow axis, to create substantially equal optical path lengths of the two transmission axes of the fiber coupling can nearly eliminate output amplitude fluctuation within a practical operating temperature range. | 2009-03-12 |
20090067455 | METHOD AND SYSTEM FOR A PULSED LASER SOURCE EMITTING SHAPED OPTICAL WAVEFORMS - A laser system for processing a workpiece includes a tunable pulsed laser source having an output comprising a set of optical pulses. The tunable pulsed laser source includes a seed source, an optical circulator having a first port coupled to the seed source, a second port, and a third port, a modulator driver, and an amplitude modulator coupled to the modulator driver. The tunable pulsed laser source also includes a first optical amplifier characterized by an input end and a reflective end and a second optical amplifier coupled to the third port of the optical circulator. The laser system also includes a controller configured to adjust laser parameters of the tunable pulsed laser source, a supporting member configured to support the workpiece, and an optical system configured to adjust laser beams from the tunable pulsed laser source and direct them towards the workpiece. | 2009-03-12 |
20090067456 | Tunable mode-locked laser - A tunable laser cavity for selectively emitting laser light having a first wavelength and a second wavelength using pump light emitted by a pump light source. The tunable laser cavity includes an optical resonator, the optical resonator having a configuration, optical properties and dimensions such that a first round-trip time of the laser light having the first wavelength in the optical resonator differs from a second round-trip time of the laser light having the second wavelength in the optical resonator; a gain medium inserted in the optical resonator, the gain medium being responsive to the pump light for converting the pump light to the laser light; a pump light input port optically coupled to the gain medium for receiving the pump light and conveying the pump light to the gain medium; an optical intensity modulator inserted in the optical resonator for absorbing a portion of the laser light as the laser light propagates back and forth in the optical resonator, the optical intensity modulator having a light absorption coefficient that is modulated with a modulation period, the modulation period being selectively adjustable between a first modulation period value and a second modulation period value, the first and second round-trip times being substantially equal to a respective integer multiple of respectively the first and second modulation period values; and an output port for releasing the laser light from the optical resonator. | 2009-03-12 |
20090067457 | Ultraviolet laser light source pulse energy control system - A method and apparatus is disclosed which may comprise: a gas discharge laser system energy controller which may comprise: a laser system energy controller providing a first laser operating parameter control signal based on an error signal related to a value of the output energy of the laser system compared to a target value for output energy and an energy controller model of the value of the first laser operating parameter necessary to change the value of the laser system output energy to the target value; a first laser system operating parameter control signal modifier providing a modification to the first laser system operating parameter control signal based upon a controller signal modification model of the impact of a second laser system operating parameter on the value of the first laser system operating parameter necessary to change the value of the output energy to the target value. | 2009-03-12 |
20090067458 | NONLINEAR IMAGING USING PASSIVE PULSE SPLITTERS AND RELATED TECHNOLOGIES - An apparatus includes a pulsed laser source that produces a pulsed laser beam at an input repetition rate and an input pulse power, a passive pulse splitter that receives the pulsed laser beam and outputs a signal including a plurality of sub-pulses for each input pulse of the pulsed laser beam, a sample, and a detector. The output signal has a repetition rate that is greater than the input repetition rate and the powers of each of the sub-pulses are less than the input pulse power. The sample is placed in the path of a sample beam that is formed from the beam that exits the pulse splitter. The detector receives a signal of interest emitted from the sample. | 2009-03-12 |
20090067459 | ILLUMINATION LIGHT SOURCE DEVICE AND LASER PROJECTION DEVICE - An illumination light source is provided with a laser light source having a laser medium with a specified gain region, and a reflector having a narrow band reflection characteristic. A part of a laser light emitted from the laser light source is reflected and fed back by the reflector, so that an oscillation wavelength of the laser light source is fixed at a reflection wavelength. A peak of the gain region of the laser medium is shifted from the reflection wavelength by a change of an oscillation characteristic of the laser light source, so that the oscillation wavelength of the laser light source is changed from the reflection wavelength. Thus, an oscillation spectrum of the laser light source is spread to reduce speckle noise. | 2009-03-12 |
20090067460 | Semiconductor optical device with suppressed double injection phenomenon - A semiconductor optical device where the leak current due to the double injection of carriers may be suppressed and a simplified process to form the device are disclosed. The device | 2009-03-12 |
20090067461 | ROTATING LASER TRANSMITTER - The transmitter has a generally flat, circuit board stator, a rotor including a plurality of magnets mounted in a ring around a central opening, and a bearing, supporting the rotor for rotation about an axis that extends through the central opening, A pentaprism assembly including an optics holder is mounted on the rotor for rotation therewith. The pentaprism assembly receives a beam of laser light through the central opening and redirects at least a portion of the laser light outward in a direction normal to the rotation axis. A laser source, mounted on the stator, provides a beam of laser light through the central opening to the pentaprism assembly. The beam of laser light is aligned with the rotation axis. The laser source includes a collimating lens positioned within the rotor. A shield plate of magnetic material beneath the stator exerts a force on the rotor in conjunction with the magnets, taking play out of the bearing. The transmitter uses Hall effect sensors on the stator to control switching current to coils on the stator. The transmitter also uses the outputs of the Hall effect sensors and a timer output to control dithering of the laser beam. | 2009-03-12 |
20090067462 | SEMICONDUCTOR DEVICE - A semiconductor device includes an InP substrate, an AlGaInAs-based first layer, an AlGaInAs-based second layer, an InGaAsP-based third layer, and an InGaAsP-based fourth layer. The first and second layers have compositions which are same or substantially same as each other on an interface therebetween. The composition of the layer varies such that a band gap continuously increases from the first layer side toward the third layer side. The compositions of the second and third layers are set such that energy levels of a valence band maximum are substantially equal to each other on an interface between the second and third layers. The composition of the third layer varies such that a band gap continuously increases from the second layer side toward the fourth layer side. The compositions of the third and fourth layers are same or substantially same as each other on an interface between the third and fourth layers. | 2009-03-12 |
20090067463 | STRUCTURES HAVING LATTICE-MISMATCHED SINGLE-CRYSTALLINE SEMICONDUCTOR LAYERS ON THE SAME LITHOGRAPHIC LEVEL AND METHODS OF MANUFACTURING THE SAME - A semiconductor substrate containing a single crystalline group IV semiconductor is provided. A single crystalline lattice mismatched group IV semiconductor alloy layer is epitaxially grown on a portion of the semiconductor layer, while another portion of the semiconductor layer is masked. The composition of the lattice mismatched group IV semiconductor alloy layer is tuned to substantially match the lattice constant of a single crystalline compound semiconductor layer, which is subsequently epitaxially grown on the single crystalline lattice mismatched group IV semiconductor alloy layer. Thus, a structure having both the group IV semiconductor layer and the single crystalline compound semiconductor layer is provided on the same semiconductor substrate. Group IV semiconductor devices, such as silicon devices, and compound semiconductor devices, such as GaAs devices having a laser emitting capability, may be formed on the on the same lithographic level of the semiconductor substrate. | 2009-03-12 |
20090067464 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser device includes: a laminated body including an active layer, a cladding layer provided on the active layer, and a contact layer provided on the cladding layer, the laminated body having a first and second end face forming a resonator for light emitted from the active layer; and an electrode provided on the contact layer and including an ohmic section injecting a current into the active layer and a first current adjustment section provided between one end of the ohmic section and the first end face. The ohmic section contains a metal which has a smaller work function than any metal constituting the current adjustment section. | 2009-03-12 |
20090067465 | MULTIPLE CAVITY ETCHED-FACET DFB LASERS - A semiconductor chip has at least two DFB etched facet laser cavities with one set of facets with AR coatings and a second set of etched facets with HR coatings that have a different relative position with respect to the gratings. This creates a difference in the phase between each of the etched facets and the gratings which changes the operational characteristics of the two laser cavities such that at least one of the lasers provides acceptable performance. As a result, the two cavity arrangement greatly improves the yield of the fabricated chips. | 2009-03-12 |
20090067466 | SEMICONDUCTOR LASER DEVICE AND METHOD FOR MANUFACTURING THE SAME - A semiconductor laser device comprising: a submount having a front surface and a back surface corresponding to the opposing face that are in parallel with each other and a visible light transmittance of 60% or more; a connection electrode that is formed on the front surface; and a semiconductor laser element that is packaged on the submount through the connection electrode, and is allowed to emit a laser beam in a direction parallel to the front surface. | 2009-03-12 |
20090067467 | Pre-ionizer for pulsed gas-discharge laser | 2009-03-12 |
20090067468 | Laser system - A method/apparatus may comprise a laser light source which may comprise a solid state seed laser system producing a seed laser output having a nominal center wavelength at a pulse repetition rate; a first and a second gas discharge laser amplifier gain medium each operating at a pulse repetition rate less than that of the seed laser system; a beam divider providing each of the respective first and second amplifier gain mediums with seed laser output pulses; a frequency converter modifying the nominal center wavelength of the output of the seed laser to essentially the nominal center wavelength of the amplifier gain medium; a beam combiner combining the outputs of the respective amplifier gain mediums to provide a light source output having the pulse repetition rate of the seed laser; a coherence buster operating on either or both of the output of the seed laser or amplifier gain mediums. | 2009-03-12 |
20090067469 | Optical module having a block with feedthrough pins - The present invention provides an optical module with a relatively wider mounting area for the devices with a CAN package. The optical module of the present invention provides the stem and the cap, both of which form a cavity where the devices are to be installed. The stem provides the block extruding from the primary surface of the stem into the cavity. The block mounts the optical and electrical devices in surfaces opposite to each other, and provides feedthrough pins between these two surfaces. The device mounted in each surface may be electrically connected through these feedthrough pins. | 2009-03-12 |
20090067470 | METHOD FOR HEAT TREATMENT OF POWDERY MATERIALS - The present invention relates to a method for heat treatment of powdery products ( | 2009-03-12 |
20090067471 | TEMPERATURE SENSING CIRCUIT AND ELECTRONIC DEVICE USING SAME - A temperature sensing circuit that detects a given temperature includes a first differential input circuit and a second differential input circuit connected to the first differential input circuit. The first differential input circuit is configured to provide a first offset voltage with no temperature coefficient. The second differential input circuit is configured to provide a second offset voltage with a non-zero temperature coefficient. The given temperature is detected based on the first offset voltage and the second offset voltage. An electronic device using such a temperature sensing circuit is also disclosed. | 2009-03-12 |
20090067472 | Infrared thermometer and detecting head component thereof - The present invention discloses an infrared thermometer and a detecting head component thereof. The novel detecting head component is located on the top of the infrared thermometer. The detecting head component includes a shell, n infrared detector inside the shell, and a sleeve unit, coupled to the part of the shell which contacts with a measuring object. The infrared thermometer in the present invention can increase the comfortableness of user during using the infrared thermometer. | 2009-03-12 |
20090067473 | Device for measuring the termperature in a solid phase polycondensation - The invention relates to a measuring device for measuring the temperature in a reactor container which can be crossflown by bulk material, in particular in a solid phase polycondensation, which takes place in an SSP-reactor. The aim of the invention is to protect the measuring device against mechanical stresses. Said aim is achieved by virtue of the fact that the measuring device, which is used to measure temperature, comprises at least one metal profile, at least one measuring tube and at least one sensor which is arranged therein. The metal profile can be connected to the walls of the reactor container and the measuring tube is connected to the metal profile such that it is partially reinforced on the external wall thereof by means of the metal profile. As a result, the measuring tube is soldered, screwed, riveted or rigidly connected in another manner to the metal profile. The metal profile is then secured to the inner wall of the reactor container. Another advantage thereof is that the weight, which is exerted on the column of the bulk material, is partially applied to the SSP reactors which are equipped with the measuring devices. | 2009-03-12 |
20090067474 | Adjusting method and system thereof for a temperature sensing element - A method and a system thereof for adjusting a temperature sensing element are proposed. The temperature sensing element is coupled to a control chip and has a temperature sensing resistor. Firstly, a memory area of the control chip is set to pre-store a temperature standard, and a predetermined standard is defined such that the temperature standard is equal to the predetermined standard ±ΔT. Then, the temperature sensing element is placed in and thermal equilibrates with a constant-temperature environment. The temperature sensing resistor is oscillated until a temperature measured by the temperature sensing element is consistent with the predetermined standard such that a first oscillation time is determined. A reference resistor is provided and oscillated based on the first oscillation time to determine an updated temperature standard, and then the updated temperature standard is stored to the memory area to replace the temperature standard pre-stored in the memory area. | 2009-03-12 |
20090067475 | TEMPERATURE MEASURING DEVICE - A temperature measuring device incorporates a fixed point cell to provide an integrated structure. The fixed point cell houses a pure substance within a substantially cylindrical graphite crucible. The pure substance is to be melted to give an absolute temperature. The crucible is enclosed within a sealed metal container. An annular metal tube surrounds the container and the inner wall of the tube is formed by the outer peripheral wall of the container. This provides excellent heat conduction from the interior of the tube to the interior of the crucible. The tube is arranged to define either a heat pipe or a thermal siphon and includes an appropriate vaporizable fluid. | 2009-03-12 |
20090067476 | WIRELESS COMMUNICATION SYSTEM AND METHOD - Disclosed is a wireless communication system in which a mobile station transmits a plurality of reference signals upon placing the reference signals in temporally spaced-apart relation in at least one of information transmission units wirelessly transmitted in conformity with a hopping period, and a base station receives an information transmission unit that has been transmitted from the mobile station and, if this information transmission unit is one that includes a plurality of the reference signals, obtains a phase fluctuation from the plurality of reference signals and obtains a frequency deviation from the phase fluctuation. | 2009-03-12 |
20090067477 | Method and Apparatus for Measuring Timing of Signals Received from Multiple Base Stations in a CDMA Communication System - Unassigned finger processors are used to process and measure the arrival times of transmissions from base stations not in the active set. A first set of one or more base stations in active communication with the remote terminal is identified and each base station in the first set is assigned at least one finger processor. A second set of one or more base stations not in active communication with the remote terminal is also identified and an available finger processor is assigned to each of at least one base station in the second set. A (signal arrival) time measurement is then performed for each base station, and outputs indicative of the measurements are provided for further processing. | 2009-03-12 |
20090067478 | Method and System for Implementing a PLL using High-Voltage Switches and Regulators - A method and apparatus in an integrated circuit radio transceiver are operable to apply a modified control signal to drive logic that includes a plurality of first devices having a first threshold voltage and a first gate oxide thickness that are both greater than a second threshold voltage and a second gate oxide thickness for a greater second plurality of devices within the integrated circuit radio transceiver. The transceiver therefore generates a first control signal having a first magnitude operable to drive logic that includes a plurality of devices having a second threshold voltage and applies the first control signal to a level shifter to produce the modified control signal. | 2009-03-12 |
20090067479 | Processing Received Digital Data Signals based on a Received Digital Data Format - An integrated circuit radio receiver includes radio frequency (“RF”) front end circuitry for receiving and transmitting digital data received through a wireless interface. A baseband processor is operable to process the digital data received through the wireless interface. A plurality of digital filtering logic is included wherein each digital filtering logic includes a level of digital filtering based upon a received digital data signal format. The integrated circuit radio receiver includes logic that is operable to select between each digital filtering logic of the plurality of digital filtering logic based upon the received digital data signal format to process the digital data received through the wireless interface with the selected level of digital filtering. | 2009-03-12 |
20090067480 | Method and System for Monitoring Various Signals in a Continuous Processing Circuit for a Single Channel in a Communication System - A method and system for monitoring includes a transfer switch and a first receiver decoder circuit for a first channel coupled to the first transfer switch. The first receiver decoder circuit generates a first receiver decoder circuit signal. A second receiver decoder circuit for the first channel is coupled to the first transfer switch. The second receiver decoder circuit generates a second receiver decoder circuit signal. A monitoring display is formed in response to the first receiver decoder circuit signal and the second receiver decoder circuit signal. | 2009-03-12 |
20090067481 | IDENTIFICATION OF TARGET SIGNALS IN RADIO FREQUENCY PULSED ENVIRONMENTS - A system and method for processing signals are disclosed. The method may be performed, at least partially, by the system. In one embodiment, the method comprises sending a first plurality of data including transmission parameters to a transmission system for transmitting of a first plurality of signals, receiving a second plurality of signals including signals based on the power level of the first plurality of signals, detecting in the second plurality of signals the signals corresponding to the first plurality of signals, outputting a second plurality of data based on the power levels of the second plurality of signals corresponding to the first plurality of signals, and receiving the second plurality of data and associating the first plurality of data and the second plurality of data based on the time when the first plurality of signals was transmitted and the second plurality of signals was received | 2009-03-12 |
20090067482 | Selectable-Tap Equalizer - A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval. | 2009-03-12 |
20090067483 | Efficient adaptive equalizer implementation - The present invention is related to the digital implementation of adaptive equalizers for high-speed communication systems, using finite precision arithmetic, for example, as implemented in a silicon ASIC. | 2009-03-12 |
20090067484 | Selectable-Tap Equalizer - A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval. | 2009-03-12 |
20090067485 | WAVEFORM EQUALIZING DEVICE - A waveform equalizing device for performing high-precision waveform equalization for an input signal and outputting the result as an output signal, includes: a FIR filter for performing convolution operation between the input signal and a plurality of tap coefficients; first and second slicers at least one of which makes decision on the value of the output signal; a first delay device for imparting a delay to the output of the second slicer; an IIR filter; and an addition section for summing the output of the FIR filter and the output of the IIR filter and outputting the sum as the output signal. The IIR filter includes first and second delay portions for respectively receiving the outputs of the first slicer and the first delay device and imparting delays, and performs convolution operation between the signal received by the first delay portion and tap coefficients for the first delay portion and between the signal received by the second delay portion and tap coefficients for the second delay portion. | 2009-03-12 |
20090067486 | Method and apparatus for joint decoding and equalization - The present invention is related to joint trellis decoding and equalization using a decision feedback equalizer. | 2009-03-12 |