Patents Examined by Kai Chang
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Patent number: 10142675Abstract: A particular implementation for controlling single program transport streams during remultiplexing to a multiple program transport stream uses a series of leaky bucket buffers to minimize timing artifacts in the multi-program transport stream. Another implementation for controlling the remultiplexing process limits the number of consecutive packets to be transferred from each single program transport stream, or controls the multiplex frequency of each single program transport stream within the multi-program transport stream. An alternative implementation controls the remultiplexing process using multiple program clock reference values such that packets from each single program transport stream are released only after a previous program clock reference value is greater than the system time.Type: GrantFiled: December 14, 2015Date of Patent: November 27, 2018Assignee: InterDigital CE Patent HoldingsInventors: Thomas A. Stahl, Suresh V. Leley
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Patent number: 10142989Abstract: Methods and apparatuses providing a visual metric of the efficiency of a network of devices communicating through a wireless access point (AP). These apparatuses and methods may also determine and display pseudo-dynamic error vector magnitude (EVM) information for a network of wireless stations, including displaying a pseudo-dynamic constellation diagrams using EVM information. These methods and apparatuses may transmit a plurality of sounding packets from each of one or more radio devices different modulation types (e.g., BPSK, QPSK, 16QAM, 64QAM, 256QAM and 1024QAM), and receiving at least some of the sounding packets at a second radio device (e.g., an access point) and determining EVM information from the received sounding packets, and displaying (or providing for display) a constellation diagram including pseudo-dynamic EVM information that is a constrained approximation of actual EVM information.Type: GrantFiled: October 20, 2015Date of Patent: November 27, 2018Assignee: Ubiquiti Networks, Inc.Inventors: Sriram Dayanandan, Vish Ponnampalam, Robert J. Pera
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Patent number: 10116368Abstract: A communication unit comprises a plurality of antenna element feeds (203, 205) for coupling to a plurality of antenna elements of an antenna array, where each antenna element feed comprises at least one coupler; and a plurality of transmitters operably coupled to the plurality of antenna element feeds. At least one transmitter of the plurality of transmitters comprises: an input for receiving a first signal and at least one second signal; beamformer logic arranged to apply independent beamform weights (RefBF1, RefBF2) on the first signal and the at least one second signal of the transmitter respectively, wherein each of the independent beamform weights is allocated on a per sector basis; and a signal combiner arranged to combine the first signal and the second signal to produce a combined signal, such as that the combined signal supports a plurality of sectored beams.Type: GrantFiled: August 15, 2014Date of Patent: October 30, 2018Assignee: Analog Devices GlobalInventors: Conor O'Keeffe, Michael O'Brien, Sean Sexton
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Patent number: 10097321Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives first information from a base station, determines, based on the first information, a position of resources for receiving a signal transmitted from a connection point, detects the signal via at least one beam receiving direction based on the resources, determines a beam transmitting direction of the connection point and a beam receiving direction of the UE based on the signal, identifies a beam receiving direction of the connection point based on the beam transmitting direction of the connection point, and provides the connection point with second information based on the beam receiving direction of the connection point, wherein the second information may comprise an intent to establish a millimeter-wave (mmW) link with the connection point, the beam receiving direction of the UE, and/or the beam transmitting direction of the connection point.Type: GrantFiled: May 8, 2014Date of Patent: October 9, 2018Assignee: QUALCOMM IncorporatedInventors: Sundar Subramanian, Junyi Li, Ashwin Sampath
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Patent number: 10064037Abstract: A method and apparatus for relocating a group owner (GO) of a proximity services (ProSe) group in a wireless communication system is provided. A first user equipment (UE), which is the GO of the ProSe group currently, receives at least one of channel quality of a second UE in the ProSe group or priority of the second UE in the ProSe group, from the second UE. The first UE determines the second UE as a new GO of the ProSe group based on the at least one of the channel quality of the second UE in the ProSe group or priority of the second UE in the ProSe group. Alternatively, the second UE may determine itself as the new GO of the ProSe group if the priority of the second UE in the ProSe group is higher than a priority of the first UE in the ProSe group.Type: GrantFiled: August 4, 2014Date of Patent: August 28, 2018Assignee: LG ELECTRONICS INC.Inventors: Youngdae Lee, Sunghoon Jung
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Patent number: 10064031Abstract: An apparatus and method are disclosed for migrating between terminals. An apparatus that incorporates teachings of the present disclosure may include, for example, a network proxy having a controller that manages a communications interface in a communication system. The controller can be programmed to receive a request to migrate a first terminal to a third terminal while active communications are taking place on a first voice channel connecting the first terminal to a second terminal, establish a second voice channel with the third terminal, connect the first and second voice channels, and terminate without action of an end user of the first terminal a connection between the first terminal and the first voice channel. Additional embodiments are disclosed.Type: GrantFiled: August 1, 2017Date of Patent: August 28, 2018Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Marco Schneider, Yi Zhang
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Patent number: 10057428Abstract: A variety of methods, systems, devices and arrangements are implemented for assessing and/or controlling call routing for VoIP/VioIP calls. According to one such method, endpoint devices are used to monitor and/or assess the call-quality. The assessment is sent to a centralized server arrangement and call-routing is controlled therefrom. Endpoint devices employ a decentralized testing mechanism to further monitor and assess call quality including the use of test connections. Aspects of call quality are analyzed and attributed to endpoint devices and/or local connections or networks to distinguish intermediate routing issues from local/endpoint issues.Type: GrantFiled: September 19, 2017Date of Patent: August 21, 2018Assignee: 8x8, Inc.Inventors: Marc Petit-Huguenin, Garth Judge
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Patent number: 10056970Abstract: An access network for terminals of a digital telecommunications system includes base stations adapted for receiving radiofrequency signals emitted by the terminals, each terminal a physical layer processing module adapted to form a radiofrequency signal on the basis of binary data in accordance with a predefined physical layer protocol. Moreover, for at least one base station, termed the “partial station”, an inverse physical layer processing, making it possible to extract binary data from a radiofrequency signal, is distributed between the partial station and a processing server distinct from the partial station, an inverse physical layer processing module being made up of a first inverse processing module, integrated into the partial station, and a second inverse processing module, integrated into the processing server. The invention also relates to a method of digital telecommunications.Type: GrantFiled: March 2, 2017Date of Patent: August 21, 2018Assignee: SIGFOXInventors: Marc Vertes, Cèdric Artigue, Christophe Fourtet
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Patent number: 10051622Abstract: Disclosed in the present invention is a method for a terminal to transmit/receive a signal from a base station in a wireless communication system. More particularly, the present invention comprises the steps of: receiving through a physical control channel for receiving from the base station an indicator for changing a specific subframe set for one of the uses from a downlink resource and an uplink resource to another one of the uses; and according to the indicator, transmitting a signal to the base station from the specific subframe, or receiving a signal from the base station.Type: GrantFiled: March 7, 2012Date of Patent: August 14, 2018Assignee: LG ELECTRONICS INC.Inventors: Seungmin Lee, Hanbyul Seo
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Patent number: 10045246Abstract: A mobile device that incorporates the subject disclosure may perform, for example, obtaining performance characteristics for network segments of a network where the network segments are selected from a group of network segments of the network based on a trajectory of the mobile device. The mobile device can monitor power state transitions of the mobile device, and can predict a future power state of the mobile device based on the monitoring of the power state transitions. The mobile device can determine a target time for sending a request for transmission of a data packet over the network where the target time is determined based on the performance characteristics for the network segments and based on the future power state of the mobile device. The mobile device can schedule a time for sending the request for transmission according to the target time. Other embodiments are disclosed.Type: GrantFiled: March 10, 2017Date of Patent: August 7, 2018Assignee: AT&T Intellectual Property I, L.P.Inventors: David Crawford Gibbon, Andrea Basso
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Patent number: 10020873Abstract: Even in the case of satellite communications to which LTE is applied, a difference between reception timings of uplink singles transmitted from a plurality of mobile stations UE located in the same cell is kept within GI specified in LTE. A mobile station UE#1 according to the present invention includes: an offset calculation unit 23 configured to calculate an offset ? from a transmission timing to be referenced, based on a distance Lx between the mobile station UE#1 and a satellite 1 used in satellite communications, and a distance Lref between the satellite 1 and a reference mobile station UE; and an RACH functional unit 24 configured to adjust a transmission timing of a random access preamble based on the calculated offset ?.Type: GrantFiled: July 18, 2014Date of Patent: July 10, 2018Assignee: NTT DOCOMO, INC.Inventors: Tooru Uchino, Yoshiaki Ofuji, Kohei Kiyoshima
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Patent number: 10015819Abstract: A method and apparatus for transmitting control information in a wireless communication system supporting carrier aggregation (CA) is disclosed. A method for transmitting control information to a base station (BS) by a user equipment (UE) in a wireless communication system includes receiving at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) from the base station through at least one serving cell configured in the user equipment, and transmitting control information regarding PDCCH reception or PDSCH reception indicated by the PDCCH to the base station. The control information is transmitted through a physical uplink control channel (PUCCH) of a primary cell, using control information feedback timing of at least one of the primary cell and a first cell of the at least one serving cell, and the at least one serving cell uses different uplink and downlink (UL-DL) configurations.Type: GrantFiled: January 9, 2017Date of Patent: July 3, 2018Assignee: LG ELECTRONICS INC.Inventors: Hyunwoo Lee, Jinmin Kim, Seunghee Han
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Patent number: 10009819Abstract: Apparatus and methods of performing a network cell transition for a voice over long term evolution (VoLTE) capable mobile device. Initially, the mobile device can detect a call initiation event. Thereafter, the mobile device determines whether a radio signal power associated with its serving LTE network base station is less than a radio access technology (RAT) specific threshold (i.e., an LTE-specific threshold). In a scenario where the radio signal power is less than the RAT-specific threshold the mobile device can effectuate a transition to an available neighbor network base station employing a legacy RAT, prior to establishing a voice call. When the mobile device is in a radio resource control (RRC) connected mode the network cell transition may be associated with an induced network handover procedure. Alternatively, when the mobile device is in an RRC idle mode the network cell transition may be associated with network reselection procedure.Type: GrantFiled: October 29, 2013Date of Patent: June 26, 2018Assignee: Apple Inc.Inventors: Samy Khay-Ibbat, Tarik Tabet
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Patent number: 10009132Abstract: Time stamp replication within wireless networks is described. In an embodiment, a wireless station receives an input time stamp and uses this input time stamp to generate an output time stamp. The wireless station transmits the output time stamp to wireless stations in one of a number of groups which make up the wireless network. The output time stamp is generated to compensate for delays between receiving the input time stamp and transmitting the output time stamp such that output time stamp which is transmitted at a time T corresponds to the value that the input time stamp would have had if it had been received at time T (and not at a time earlier than T). This may, therefore, reduce or eliminate independent time stamp errors and jitter caused by multiple disparate systems and processes.Type: GrantFiled: May 11, 2015Date of Patent: June 26, 2018Assignee: Imagination Technologies LimitedInventor: Ian Knowles
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Patent number: 10003544Abstract: An apparatus is configured to perform a method for congestion control in an Ethernet network. The method includes determining an egress queue congestion state for each of a plurality of egress queues. The method also includes determining an ingress queue congestion state for each of a plurality of ingress queues. The method further includes determining a flow control state for at least one of the ingress queues based on the determined egress queue congestion states and ingress queue congestion states. In addition, the method includes transmitting a flow control message to the at least one ingress queue based on the determined flow control state.Type: GrantFiled: December 10, 2015Date of Patent: June 19, 2018Assignee: FUTUREWEI TECHNOLOGIES, INC.Inventors: Fangping Liu, Zhenjiang Li, Serhat Avci
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Patent number: 9985682Abstract: Embodiments of a tunable radio frequency (RF) diplexer and methods of duplexing transmission and receive signals are disclosed. In one embodiment, the RF diplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit, and a phase inversion component. Both the RF filter circuit and the phase inversion component are connected between the first hybrid coupler and the second hybrid coupler. In some embodiments, the phase inversion component is provided by the RF filter circuit, while in other embodiments, the phase inversion component is provided separately. The phase inversion component is configured to provide a differential phase shift. The benefit of introducing the differential phase shift is that it provides increased isolation and broadband isolation between the different frequency bands being diplexed by the RF diplexer.Type: GrantFiled: October 24, 2014Date of Patent: May 29, 2018Assignee: Qorvo US, Inc.Inventors: Nadim Khlat, Marcus Granger-Jones
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Patent number: 9967132Abstract: The present invention relates to a session handling entity in a communication system, the session handling entity (S-CSCF) maintain a relationship between at least one public user identity, at least one private user identity and at least one contact address of a user of a communication system. Then receives from a subscription entity an indication of a correlation identity associated with the user, and stores the indication of the correlation identity as part of the relationship maintained by the maintaining means. When a session request of the user is received, determining the correlation identity for the user based on a contact address of the user included in the session request and the indication of a correlation identity associated with the user take place, and the correlation identity is included in the session request.Type: GrantFiled: April 7, 2009Date of Patent: May 8, 2018Assignee: Nokia Solutions and Networks OyInventors: Jari Mutikainen, Miikka Juhana Poikselka
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Patent number: 9954766Abstract: A centralized network control device for controlling a plurality of network devices in a centralized manner includes a processor configured to determine a load state of path calculation based on a predetermined threshold value when a path setting request is received, and perform, when a heavy load state of the path calculation is determined, setting control for a temporary path by using a path based on a path tree obtained by past path calculation execution.Type: GrantFiled: November 27, 2013Date of Patent: April 24, 2018Assignee: FUJITSU LIMITEDInventor: Sho Shimizu
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Patent number: 9936381Abstract: A master terminal transmits sound waves that are a synchronization signal from a speaker to a slave terminal at random time intervals. Upon acquiring the sound waves that are the synchronization signal by microphone, the slave terminal promptly transmits a response signal through wireless communication to the master terminal. The master terminal receives the response signal and a terminal ID transmitted from the slave terminal. The master terminal receives the response signal multiple times and determines whether time intervals when synchronization signals were transmitted and time intervals when response signals were received match. When the synchronization signal time intervals and the response signal time intervals match, the master terminal recognizes the slave terminal that transmitted response signals at time intervals matching the synchronization signal time intervals as a wireless communication connection target.Type: GrantFiled: September 15, 2015Date of Patent: April 3, 2018Assignee: CASIO COMPUTER CO., LTD.Inventors: Yuji Tabata, Takahiro Tomida
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Patent number: 9906245Abstract: A communications system having two terminals, each including two antennas, the communications system using spatial multiplexing. One antenna of a first terminal transmits a tracking tone along with a data signal. Two antennas in a second terminal receive the tracking tone. The signals from the two antennas are processed by a feed circuit. The feed circuit includes a variable delay circuit and a combiner that forms, at a first difference output, a linear combination, of a signal from the first antenna and a signal from the second antenna, in which the tracking tone is canceled. The variable delay circuit is actively adjusted to maintain this cancellation.Type: GrantFiled: September 15, 2015Date of Patent: February 27, 2018Assignee: RAYTHEON COMPANYInventors: Kenneth W. Brown, Michael J. Sotelo, April R. Sanders