Patents Examined by Samina Choudhry
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Patent number: 8400905Abstract: Physical downlink channels PPHY1, PHY2 are summed in a summation unit 10. The output of summation unit 10 is forwarded to another summation unit 12, where it is combined with the primary and secondary synchronization channels P-SCH, S-SCH. The secondary synchronization channel S-SCH is formed as in WCDMA. The primary synchronization channel P-SCH is formed by connecting a switch SW either to a code generator 14 generating the conventional code PSCWCDMA or a code generator 18 generating the code PSCNEW. The selection is controlled by a PSC controller 18. This controller can be adapted to produce a P-SCH in accordance with one of several formats. PSCNEW has the properties that it is a hierarchical Golay sequence constructed by a plurality of constituent sequences with at least one of the constituent sequences being the Golay sequence, and that it is orthogonal to the primary and secondary synchronization codes used in non-MBSFN capable WCDMA.Type: GrantFiled: September 18, 2008Date of Patent: March 19, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Lars Lindbom, Dirk Gerstenberger, Yi-Pin Eric Wang
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Patent number: 8391133Abstract: A network system comprises at least one input TNE (10) and one output TNE (11) interconnected by circuits in the network (20). Each TNE in the protection step comprises a traffic selector (22, 23) switchable between listening to the traffic input from a work circuit (13, 14) and listening to the traffic input from a reset circuit (18, 19) and a Split module (21, 24) allowing sending of a same traffic output either to a work circuit or to a reset circuit. Each TNE comprises in addition an agent (25, 26) termed ASTN agent commanding activation and deactivation of the reset circuit and switching of the traffic selector between work circuit and reset circuit.Type: GrantFiled: December 7, 2004Date of Patent: March 5, 2013Assignee: Ericsson ABInventor: Diego Caviglia
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Patent number: 8385207Abstract: The invention provides a method and apparatus for network congestion management. The method includes inserting a probe frame into data traffic in the network from a first endpoint in the network, reflecting the probe frame from a second endpoint in the network back to the first endpoint, receiving the reflected probe frame at the first endpoint via the network, determining a round-trip delay based on flow of the probe frame through the network, and throttling network traffic according to the determined delay to manage network traffic congestion.Type: GrantFiled: May 27, 2008Date of Patent: February 26, 2013Assignee: International Business Machines CorporationInventors: Mircea Gusat, Michael Anthony Ko
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Patent number: 8379548Abstract: A wireless device that simultaneously transmits first wireless signals according to a first protocol and second wireless signals according to a second protocol. The wireless device may comprise an antenna, first wireless protocol circuitry, second wireless protocol circuitry, a switch, and at least one gain element. The first wireless protocol circuitry sends first signals according to the first wireless protocol. The second wireless protocol circuitry sends second signals according to the second wireless protocol. The switch comprises a combiner. The switch receives the first signals and the second signals, combines the first signals and the second signals to produce third signals having aspects of the first signals and the second signals, and sends the third signals to a gain element. The gain element amplifies the third signals and sends the amplified third signals to the antenna. The antenna wirelessly transmits the amplified third signals.Type: GrantFiled: March 6, 2009Date of Patent: February 19, 2013Assignee: QUALCOMM IncorporatedInventor: Paul J. Husted
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Patent number: 8374164Abstract: Improved detection of specific BFD LSP path failures is herein disclosed. The improved detection described herein allow for faster fault isolation of a failure along a LSP path, which in turn may allow for faster repair of the failure. When opening a BFD session with a LSP egress node, the LSP ingress node provides the LSP egress node a path descriptor along with the BFD Discriminator. If a BFD failure is detected at the LSP egress node, the LSP egress node can signal an alarm that includes a full description of the path.Type: GrantFiled: April 6, 2007Date of Patent: February 12, 2013Assignee: Cisco Technology, Inc.Inventors: Thomas D. Nadeau, Danny Prairie, George Swallow, Reshad Rahman
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Patent number: 8374153Abstract: Various embodiments are described to enable improved inter-network/inter-technology handover of mobile devices. A network device (131, 132) collects dynamic information corresponding to mobile devices (101, 102), such as wireless measurement information at the device's location, and/or information corresponding to wireless network nodes (121-124), such loading levels/loading distributions. The network device then sends some or all of the dynamic information collected and/or statistical information generated from the dynamic information collected to a neighboring network information server (150) for access by other communication networks. By maintaining dynamic and/or statistical information in a neighboring network information server, such information can be made available to all the communication networks in a given region. One potential benefit to making this information available is improved inter-network handoff decision-making.Type: GrantFiled: April 8, 2008Date of Patent: February 12, 2013Assignee: Motorola Mobility LLCInventors: Qiaobing Xie, Anand S. Bedekar, Suresh Kalyanasundaram
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Patent number: 8363536Abstract: A receiver for receiving an orthogonal frequency division multiplexed (OFDM) digital video broadcast (DVB) signal including OFDM symbol sets including data symbols and pilot symbols transmitted using a plurality of sub-carriers, the OFDM DVB signal being transmitted toward the receiver via a transmission channel, the receiver including an input module configured to receive the OFDM DVB signal via the transmission channel, and a channel estimation module coupled to the input module and configured to calculate channel estimates of the transmission channel by performing Fourier transforms on the OFDM symbol sets to produce transformed symbol sets in the frequency domain and by performing minimum mean square error (MMSE) equalization on the transformed symbol sets using a sub-set of the pilot symbols in the OFDM DVB signal.Type: GrantFiled: August 28, 2006Date of Patent: January 29, 2013Assignee: QUALCOMM IncorporatedInventors: Xiaoqiang Ma, Azzedine Touzni
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Patent number: 8358579Abstract: A system and method are provided for controlling Quality of Service (QoS), content quality, or both QoS and content quality in a content sharing network based on user relationships. More specifically, QoS, content quality, or both QoS and content quality may be controlled based on a relationship of a user of a network node requesting content and either a user of a network node hosting the requested content or an owner of the requested content, a relationship between the user of the network node requesting the content and the content, or any combination thereof.Type: GrantFiled: August 23, 2006Date of Patent: January 22, 2013Assignee: Quiro Holdings, Inc.Inventors: Richard J. Walsh, Alfredo C. Issa, Sid Stafford, James Evans
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Patent number: 8345561Abstract: A method and system for measuring latency is provided. A monitor node is used to measure latency in a computer network or in a computing device by time stamping signal messages sent from nodes in the computer network and/or tasks in a particular node or device. The time stamps are generated using a system clock of the monitor node to reduce any discrepancies in timing. In addition, the monitor node may compensate for latencies between the monitor node and each of the one or more nodes or devices across which latency is to be measured. Signal messages may include a data message ID and/or a node ID identifying the message that is being tracked and for which latency is being measured. Latency may further be measured across multiple tasks being performed in the same or different nodes or devices by transmitting signal messages for each of the multiple tasks.Type: GrantFiled: August 22, 2006Date of Patent: January 1, 2013Assignee: Rueters America Inc.Inventors: Timothy P. Edwards, Rajasekhar R. Gunturu, Brian D. Sandri, John Patrick Merrick
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Patent number: 8339937Abstract: A distributed Internet Protocol communications network comprises a central control system comprising control processing means and at least one access point remote from the central control system for providing access to the packet based communications network. Under normal operating conditions the at least one access point is controlled by the control processing means. The network also comprises an emergency processing distinct from the central control system for controlling the at least one access point when there is a failure in the control processing means control of the at least one access point.Type: GrantFiled: August 18, 2005Date of Patent: December 25, 2012Assignee: Siemens Enterprise Communications GmbH & Co. KGInventors: Karl Bittnar, Arno-Gert Fabritius, Viktor Karell, Klaus Kirchberger
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Patent number: 8340037Abstract: A method for generating continuous resource allocation signaling comprises: a sender determines a value of the total number of resource blocks NRB in a system according to the total resource number in the system and determines, according to the amount and location of the total resources occupied by the continuous resources allocated to the target user equipment, the number of continuous resource blocks allocated to the user equipment LCRBs and the value of the index number of the starting resource block RBstart in the continuous resource blocks allocated to the user equipment; the sender compares LCRBs?1 with ?NRB/2? to compute the value RIV of the resource allocation signaling of the user equipment; if the LCRBs?1 is greater than the ?NRB/2?, then the RIV is NRB(NRB?LCRBs+1)+(NRB?1?RBstart); else the RIV is NRB(LCRBs?1)+RBstart; and the resource allocation signaling of the target user equipment is generated according to RIV and transmitted.Type: GrantFiled: December 24, 2007Date of Patent: December 25, 2012Assignee: ZTE CorporationInventors: Bo Dai, Shuqiang Xia, Guanghui Yu
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Patent number: 8305907Abstract: To prevent, in using a multicast DA in an OAM frame, an increase in the network bandwidth usage and in the load of node processing and a degradation of the network reliability caused by a frame being transmitted to all routes in a broadcast domain. A MAC address and other basic frame information and the MEGID are associated with each other, and the MEGID information is added to the OAM frame, and these information are transmitted from an edge node serving as an end point of an ME. In a relay node of the ME, a route control table used for OAM frame control is provided, and a filter is generated by snooping of the OAM frame. Furthermore, when the relay node does not support the OAM function, the MEGID is denoted by a VLAN tag and the route control is made using the snooping function of each VLAN tag.Type: GrantFiled: December 28, 2006Date of Patent: November 6, 2012Assignee: Hitachi, Ltd.Inventors: Masahiko Mizutani, Atsushi Iwamura, Yoshihiro Ashi, Kenichi Sakamoto
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Patent number: 8279817Abstract: A method of managing an offset operation of discontinuous reception, hereinafter called DRX, for a mobile device of a wireless communication system includes separately managing a start offset operation of a long DRX cycle and a start offset operation of a short DRX cycle.Type: GrantFiled: August 20, 2009Date of Patent: October 2, 2012Assignee: HTC CorporationInventor: Chih-Hsiang Wu
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Patent number: 8264952Abstract: For a ring protection method in a packet transport network a failure is detected at a first network node (N4) in the ring (1, 2). The failure is communicated along the ring (1, 2) using an automatic protection switching protocol. At the first node (N4) or at a second node (N1) adjacent to the failure, a protection switch-over for at least one protected traffic stream (4) is activated by redirecting the traffic stream (4) into the reverse direction of the ring (1, 2). Selected network nodes (N2, N5) along the ring squelch the traffic stream (4) in accordance with pre-configured squelching tables. Squelching is performed only by networks nodes along the ring which perform either an add function or a drop & continue function for the traffic stream (4) to be squelched.Type: GrantFiled: March 4, 2008Date of Patent: September 11, 2012Assignee: Alcatel LucentInventors: Igor Umansky, Alon Shavit
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Patent number: 8259600Abstract: A throughput of an air interface is recorded during a plurality of intervals to produce a set of recorded throughputs. A slot utilization is also recorded during each of the plurality of intervals to produce a set of recorded slot utilizations. A slot is an allocation of time and frequency. A linear regression on the data points of the set of recorded throughputs and the set of recorded slot utilizations is performed to produce a regression line of throughput versus slot utilization. An indicator of air interface quality is calculated based on the slope of the regression line.Type: GrantFiled: June 13, 2008Date of Patent: September 4, 2012Assignee: Clearwire IP Holdings LLCInventors: Esmail Hejazi Dinan, Vijay Rudraraju, Howard Bishop Anderson, Hemanth Balaji Pawar, Daniel A. Vivanco
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Patent number: 8248910Abstract: Aspects of the invention are directed to physical layer and data link layer signaling in digital video broadcast preamble symbols. Embodiments are directed to distributing physical layer pre-signalling data among preamble symbols. If physical layer data is larger than a predetermined number of preamble symbols, then excess physical layer data is written to data symbols immediately following the preamble symbols in top-down order symbol by symbol or the predetermined number of preamble symbols is increased. If physical layer data is not larger than the predetermined number of preamble symbols such that there is excess preamble symbol space, physical layer pipe 0 data comprising link layer signaling and notification data is carried in the excess preamble symbols or the excess preamble symbols are left empty. Different permutation rules may be used to frequency interleave odd-numbered versus even-numbered orthogonal frequency division multiplexing symbols.Type: GrantFiled: January 29, 2008Date of Patent: August 21, 2012Assignee: Nokia CorporationInventors: Tero Jokela, Jussi Vesma, Harri J. Pekonen
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Patent number: 8238228Abstract: A system and method for enabling a disabled port on a device such as a Two Port Medium Access Control (MAC) Relay (TPMR), which relays MAC frames in a communication network. When a link in the network fails, the TPMR disables the port due to operation of a link failure propagation protocol. When the TPMR detects that the failed link is repaired, the TPMR stops transmitting link failure Packet Data Units (PDUs) and transmits a Link Failure Terminating PDU to other connected TPMRs in the network. Receipt of the Link Failure Terminating PDU indicates the failed link is repaired and all ports disabled as a result of the failure should consequently be enabled.Type: GrantFiled: July 10, 2007Date of Patent: August 7, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Panagiotis Saltsidis
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Patent number: 8213321Abstract: A method and system monitor a communications network, e.g., a controller area network (CAN), and more specifically, an in-vehicle communications network, by maintaining a count of each type of error code and a histogram of all network messages seen by each of the controllers during a measurement period; and by determining a bus health index of the communication bus based upon a percentage of a given type of error to the total count of all errors during a measurement period. An individual controller or controller area network bus segment can be indicated as having a communications problem as a result of the health index.Type: GrantFiled: January 29, 2008Date of Patent: July 3, 2012Assignee: Deere & CompanyInventors: Nicholas Lloyd Butts, Noel Wayne Anderson
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Patent number: 8204073Abstract: A method, system, and medium providing personalized media content to a display device.Type: GrantFiled: August 23, 2006Date of Patent: June 19, 2012Assignee: Sprint Communications Company L.P.Inventors: Michael A. Gailloux, Devon L. Biere
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Patent number: 8203961Abstract: Methods and apparatus for providing modified timestamps in a communication system. In an aspect, a method includes receiving one or more packets associated with a selected destination, computing an average relative delay associated with each packet, determining a modified timestamp associated with each packet based on the average relative delay associated with each packet, and outputting the one or more packets and their associated modified timestamps. In an aspect, an apparatus is provided for generating modified timestamps. The apparatus includes a packet receiver configured to receive one or more packets associated with a selected destination and processing logic configured to compute an average relative delay associated with each packet, determine a modified timestamp associated with each packet based on the average relative delay associated with each packet, and output the one or more packets and their associated modified timestamps.Type: GrantFiled: August 11, 2008Date of Patent: June 19, 2012Assignee: QUALCOMM IncorporatedInventors: Mehmet Yavuz, Matthew S. Grob, Peter J. Black, Rohit Kapoor, Serafin Diaz