Patents Examined by Phuongchau B Nguyen
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Patent number: 8675471Abstract: A method for constructing a space-time/space-frequency code, and a transmitting method and apparatus are provided, which relate to the field of wireless communication technologies. The method for constructing a space-time/space-frequency code includes: classifying at least two transmitter antennas into K groups, and classifying information symbols into K? groups; constructing a Toeplitz matrix for information symbols in each group according to the number of transmitter antennas in a transmitter antenna group; and substituting the Toeplitz matrix for nonzero elements in an Orthogonal Space-Time Block Coding (OSTBC) matrix that is based on K and K?, and when the OSTBC matrix comprises a zero element, substituting a zero matrix with a corresponding dimension, for the zero element. The space-time code constructed with the above method has orthogonality.Type: GrantFiled: April 28, 2011Date of Patent: March 18, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: XiangGen Xia, Bin Li, Hui Shen, Yi Luo
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Patent number: 8665851Abstract: A system of at least one wireless access device in a local area network (LAN) having a plurality of transceivers. Each transceiver has a directional antenna positioned in a substantially circular array to communicate signals with a plurality of stations in a corresponding sector. Each sector defines a portion of a coverage area surrounding the wireless access device. The wireless access device has a network interface to a data network, and an array controller to control communication of data between the stations and the transceivers, and between the transceivers and the network interface. The array controller is configured to modify channel assignments so as to minimize channel interference dynamically.Type: GrantFiled: December 31, 2012Date of Patent: March 4, 2014Assignee: Xirrus, Inc.Inventors: Steve Smith, Dirk Ion Gates, Ian Laity, Michael R. Conley, Michael de la Garrigue, Kurt Sauter
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Patent number: 8665850Abstract: A wireless access device in a local area network (LAN) having a plurality of transceivers. Each transceiver has a directional antenna positioned in a substantially circular array to communicate signals with a plurality of stations in a corresponding sector. Each sector defines a portion of a coverage area surrounding the wireless access device. The wireless access device has a network interface to a data network, and an array controller to control communication of data between the stations and the transceivers, and between the transceivers and the network interface. The array controller is configured to modify channel assignments so as to minimize channel interference dynamically.Type: GrantFiled: December 31, 2012Date of Patent: March 4, 2014Assignee: Xirrus, Inc.Inventors: Steve Smith, Dirk Ion Gates, Ian Laity, Michael R. Conley, Michael de la Garrigue, Kurt Sauter
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Patent number: 8660063Abstract: A method (300) and apparatus (200) for cell detection in a wireless communication system may include acquiring (315), using a transceiver, synchronization to first radio frame boundaries of a first physical channel from a cell. The method may include attempting to decode frames (320) of a second physical channel that has second radio frame boundaries that are a multiple of the first radio frame boundaries. The method may include performing (325) a cyclic redundancy check on the frames of the second physical channel. The method may include extracting (345) predictable information from a payload from frames that fail the cyclic redundancy check.Type: GrantFiled: July 23, 2010Date of Patent: February 25, 2014Assignee: Intel CorporationInventors: Ramakrishna Yellapantula, Karthik Nagasubramanian, Brett Robertson
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Patent number: 8654629Abstract: Systems, methods and interfaces are provided for the modeling of network data capacity for a network corresponding to a set of nodes interconnected via point-to-point network paths. A network capacity processing system obtains demand estimates for the nodes and network paths of the network. The network capacity processing system then identifies a set of failure scenarios for the network nodes and network paths. The network capacity processing system then generates of a set of processing results corresponding to load estimates for the network paths of the network and based on applying the set of failure scenarios to the model of network data capacity. Utilizing data capacity models, failure scenarios and set of processing results, the network capacity processing system can provide for network capacity planning or contingency planning.Type: GrantFiled: June 29, 2011Date of Patent: February 18, 2014Assignee: Amazon Technologies, Inc.Inventors: Joseph L. Craig, Alan M. Judge, Colin J. Whittaker
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Patent number: 8638707Abstract: In a wireless mobile communications system, a method of supporting quality of Multimedia Broadcast Multicast Service (MBMS) while using minimum possible radio resource(s) of a cell. A method of providing a multimedia multicast broadcast service (MBMS) in a wireless communications system that may include: transmitting a feedback configuration parameter to at least one terminal that is subscribed in a MBMS service; transmitting a MBMS service data to the at least one terminal; and receiving feedback information from the at lest one terminal that uses the feedback configuration parameter for a transmission of the feedback information.Type: GrantFiled: June 21, 2007Date of Patent: January 28, 2014Assignee: LG Electronics Inc.Inventors: Sung-Duck Chun, Young-Dae Lee, Sung-Jun Park
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Patent number: 8630169Abstract: In accordance with an example embodiment of the present invention, a communications apparatus participates in a packet-based communication, obtains a temperature of the apparatus, and compares the temperature of the apparatus to a threshold temperature, and responsive to a result of the comparison, the apparatus starts dropping packets pertaining to the packet-based communication in the protocol layer.Type: GrantFiled: February 25, 2010Date of Patent: January 14, 2014Assignee: Nokia CorporationInventors: Pasi Petteri Laitinen, Jarkko Juhani Eskelinen
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Patent number: 8630160Abstract: A method for uplink transmission in an OFDMA system is provided. The subcarrier transmission method includes arranging 4 pilot REs at different positions of a frequency axis in a basic unit when the basic unit includes 4 subcarriers on the frequency axis and 6 OFDM(A) symbols in a time axis, arranging data REs at remaining positions of the basic unit, and transmitting the basic unit to a receiving end.Type: GrantFiled: January 5, 2011Date of Patent: January 14, 2014Assignee: LG Electronics Inc.Inventors: Min Seok Noh, Yeong Hyeong Kwon, Sung Ho Moon, Jin Sam Kwak, Dong Cheol Kim, Seung Hee Han, Hyun Woo Lee, Jin Soo Choi
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Patent number: 8625601Abstract: A method for wireless communications where a control packet is not transmitted for all transmissions of a new data packet. A control packet is only sent with a retransmission of a data packet where the previously transmitted data packet is not completely received. The control packet contains information related to a previously transmitted data packet. The previously transmitted data packet and the retransmission data packet are derived from common data. The common data is derived based on the information related to the previously transmitted data packet, wherein the previously transmitted data packet and the retransmission data packet are associated with a series of data packets.Type: GrantFiled: August 17, 2007Date of Patent: January 7, 2014Assignee: QUALCOMM IncorporatedInventors: Aziz Gholmieh, Bharat Ahuja, Etienne F. Chaponniere, Juan Montojo, Stein A. Lundby, Vinay Chande
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Patent number: 8625516Abstract: A method of determining a radio network temporary identifier (RNTI) includes descrambling a control channel, decoding control messages included in the control channel wherein the decoded control messages include control bits and received cyclic redundancy check (CRC) bits, generating a CRC from the decoded control bits, determining the RNTI from the generated CRC and received CRC and utilizing the RNTI for decoding subsequent subframes.Type: GrantFiled: June 30, 2011Date of Patent: January 7, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ.)Inventors: Bengt Lindoff, Matthias Kamuf, Reial Andres
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Patent number: 8605598Abstract: The number of data frames transmitted between two apparatuses is counted by a transmission counter, while the number of received frames is counted by a reception counter. When an OAM frame for frame loss measurement is transmitted, the value of the transmission counter is cached in a cache memory. At the time of generation of an OAM frame at an OAM frame generation unit, the value of the cache memory is used so as to generate an OAM frame carrying the value of the transmission counter at the time of transmission of the OAM frame transmitted previously. The frame loss is calculated from the difference of the value of the transmission counter carried in the OAM frame from the previous value and the difference of the value of the reception counter at the time of reception of the previous previous OAM frame from the previous value.Type: GrantFiled: July 28, 2010Date of Patent: December 10, 2013Assignee: Fujitsu LimitedInventor: Takashi Fukagawa
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Patent number: 8605757Abstract: A network comprising a destination node, and a plurality of source nodes configured to transmit high-priority data and low-priority data to the destination node, wherein the source nodes correlate the transmission of the high-priority data to the destination node such that the high-priority data from each source node does not substantially contend with the high-priority data from the other source nodes upon arrival at the destination node. Also disclosed is a network component comprising at least one processor configured to implement a method comprising creating a periodic time window, partitioning the time window into low-priority time-bands and high-priority time-bands, placing a plurality of high-priority packets in the high priority time-bands, and placing a plurality of low-priority packets in the low-priority time-bands.Type: GrantFiled: July 23, 2010Date of Patent: December 10, 2013Assignee: Futurewei Technologies, Inc.Inventor: Serge Francois Fourcand
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Patent number: 8599717Abstract: The present invention discloses a method for stopping a tracing flow, wherein, a mobility management entity sends a tracing de-activating message to an evolved node B, wherein, the tracing de-activating message carries tracing reference information; responding to the tracing de-activating message, the evolved node B stops related tracing flow according to the tracing reference information. And the tracing de-activating message carries stopping description information. The related tracing flow may be stopped by the tracing de-activating message by means of the present invention so as to achieve flexibility of tracing function and improve network performance.Type: GrantFiled: July 22, 2010Date of Patent: December 3, 2013Assignee: ZTE CorporationInventors: Yin Gao, Lin Liu
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Patent number: 8600766Abstract: Provided are methods and apparatuses for encoding data. One method of encoding data includes generating second data by altering locations of bits within first data to be encoded next based on values of bits within at least one piece of previously encoded data; and entropy-encoding the second data. Also provided are methods and apparatuses for decoding data.Type: GrantFiled: July 27, 2010Date of Patent: December 3, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-woo Kim, Sung-bum Park, Dai-woong Choi, Jae-won Yoon
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Patent number: 8594108Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: GrantFiled: September 6, 2011Date of Patent: November 26, 2013Assignee: Hitachi, Ltd.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Patent number: 8594125Abstract: A system and method are provided for framing messages in a data streams encoded with redundant information for transmission and recovering the messages at a receiver. The transmission method accepts an energy waveform representing N words at a first bit rate, encoded with redundant information, where each word includes P number of bits. The N words are transformed, creating N transcoded words, where each transcoded word includes Q number of bits, and where Q<P. The N transcoded words are mapped into M lanes in a buffer memory, where M>1 and each lane receives a frame of N/M transcoded words. A frame alignment marker is generated and mapped into each frame. Each frame is represented as an energy waveform that is transmitted on a corresponding physical lane at the first bit rate divided by M.Type: GrantFiled: October 8, 2010Date of Patent: November 26, 2013Assignee: Applied Micro Circuits CorporationInventor: Matthew Brown
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Patent number: 8588705Abstract: A system and method of determining an unbalanced current condition in Power over Ethernet applications are disclosed. In some implementations, a user or network administrator may be notified of potential impairments due to unbalanced current.Type: GrantFiled: November 25, 2008Date of Patent: November 19, 2013Assignee: Marvell International Ltd.Inventors: Tak-Lap Tsui, Runsheng He, Ozdal Barkan, Dance Wu
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Patent number: 8583292Abstract: A multiprocessor system used in a car, home, or office environment includes multiple processors that run different real-time applications. A dynamic configuration system runs on the multiple processors and includes a device manager, configuration manager, and data manager. The device manager automatically detects and adds new devices to the multiprocessor system, and the configuration manager automatically reconfigures which processors run the real-time applications. The data manager identifies the type of data generated by the new devices and identifies which devices in the multiprocessor system are able to process the data.Type: GrantFiled: May 7, 2010Date of Patent: November 12, 2013Assignee: Eagle Harbor Holdings, LLCInventors: Dan Alan Preston, Robert Pierce Lutter
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Patent number: RE44701Abstract: Provided is a method and system for TCP SYN cookie validation. The method includes receiving a session SYN packet by a TCP session setup module of a host server, generating a transition cookie including a time value representing the actual time, sending a session SYN/ACK packet, including the transition cookie, in response to the received session SYN packet, receiving a session ACK packet, and determining whether a candidate transition cookie in the received session ACK packet comprises a time value representing a time within a predetermined time interval from the time the session ACK packet is received.Type: GrantFiled: March 6, 2012Date of Patent: January 14, 2014Assignee: A10 Networks, Inc.Inventors: Lee Chen, Ronald Wai Lun Szeto, Shih-Tsung Hwang
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Patent number: RE44702Abstract: VPI/VCI of an ATM cell is translated into an internal ID by distribute VPI/VCI entries into sections in a table according to a portion of each VPI/VCI entry. A section to be searched according to the portion of a VPI/VCI of the received ATM cell is selected; and a search over the selected section is performed to find an entry corresponding to the VPI/VCI of the received ATM cell. An internal ID corresponding to the found entry is outputted.Type: GrantFiled: June 4, 2010Date of Patent: January 14, 2014Assignee: Sony Europa, B.V.Inventors: Paul Hodgins, Gert Josef Elisa Copejans, Yoeri Apts, Johan De Vos