Patents Issued in August 19, 2008
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Patent number: 7414956Abstract: An optical disc includes a read-only area having a first wobble, which is a data wobble formed in the read-only area for only reading, a readable/writable area having a second wobble, which is different from the data wobble, and a connection area between the read-only area and the readable/writable area having a third wobble having the same frequency as one of the first and second wobbles.Type: GrantFiled: May 12, 2006Date of Patent: August 19, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-geun Lee, Jung-wan Ko, In-sik Park, Du-seop Yoon
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Patent number: 7414957Abstract: An optical disc is manufactured under a uniform condition by forming grooves and lands on the entire surface of the disc. The optical disc is configured to obtain a reliable reproduction signal, and the grooves and lands are formed on a lead-in area, a user data area and a lead-out area of the optical disc. Since the same manufacturing condition can be adopted in mastering discs, the yield can be enhanced and the manufacturing cost can be reduced.Type: GrantFiled: December 19, 2007Date of Patent: August 19, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-geun Lee, In-sik Park, Du-seop Yoon
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Patent number: 7414958Abstract: A method for data communication includes providing an order for assigning bits of an input data stream to tones in a multi-tone modulation scheme, and allocating respective bit-loading values to the tones, such that some of the tones are allocated a first bit-loading value and other tones are allocated at least one second bit-loading value. The order is modified so as to form pairs of the tones that are allocated the first bit-loading value, with one or more of the other tones intervening between at least some of the pairs. The input data stream is modulated by assigning the bits to the tones in accordance with the modified order and the respective bit-loading values, and encoding the bits that are assigned to each of the pairs of the tones as a constellation point.Type: GrantFiled: October 20, 2004Date of Patent: August 19, 2008Assignee: STMicroelectronics Ltd.Inventor: Guy Reina
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Patent number: 7414959Abstract: A communication device for receiving and transmitting OFDM signals in a wireless communication system, in which each OFDM signal is composed of a plurality of subcarrier signals each being assigned to a respective transmission channel of said communication system, including a diversity antenna unit including a plurality of antenna elements; an examination unit adapted for examining, individually for each antenna element, at least one subcarrier signal of an OFDM reception signal received by a respective one of the antenna elements and for gaining, from the result of such subcarrier signal examination, attenuation information on attenuation properties of at least some of the transmission channels associated to the respective antenna element; and an amplitude adjustment unit adapted for adjusting, individually for each antenna element, the amplitude of at least one subcarrier signal of an OFDM transmission signal to be transmitted from a respective one of said antenna elements.Type: GrantFiled: November 13, 2006Date of Patent: August 19, 2008Assignee: Sony Deutschland GmbHInventor: Seiichi Izumi
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Patent number: 7414960Abstract: Systems and methods for bidirectional communication are provided. In one embodiment, a multipoint-to-point, orthogonal frequency division multiplexed (OFDM) communication system comprises: a plurality of remote units, a host unit; wherein the host sends an adjustment signal to a remote instructing the remote to adjust the timing of transmissions from the remote to improve orthogonality of the OFDM waveform received at the host, wherein the host sends an adjustment signal to a remote instructing the remote to adjust the frequency of transmissions from the remote to improve orthogonality of the OFDM waveform received at the host, wherein payload data is transmitted between a remote and the host over a first orthogonal tone within the OFDM communication system during a first time interval, and wherein control data is transmitted between a remote and the host over the first orthogonal tone within the OFDM communication system during a second time interval.Type: GrantFiled: July 20, 2007Date of Patent: August 19, 2008Assignee: ADC Telecommunications Inc.Inventors: Michael J. Geile, James J. Herrmann, Mark S. Wadman, Brian D. Anderson
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Patent number: 7414961Abstract: Systems and methods for multiframe alignment in a multipoint-to-point orthogonal frequency division multiplexing (OFDM system are provided. In one embodiment, an (OFDM) communication system comprises: a host unit; a plurality of remote units that access the host unit using an orthogonal frequency division multiple access scheme; wherein each of the remote units modulates upstream information into an OFDM signal modulated using a Fourier transform; wherein the host unit receives upstream OFDM signals from a plurality of the remote units, wherein portions of the upstream OFDM signals arrive at the host unit at the same time; and wherein the host unit causes at least one remote unit to align symbols with symbols transmitted from another remote unit based on a predefined multiframe pattern.Type: GrantFiled: October 23, 2007Date of Patent: August 19, 2008Assignee: ADC Telecommunications Inc.Inventors: Michael J. Geile, Jeffrey Brede
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Patent number: 7414962Abstract: In an OFDM transmission a transmission diversity technique is used without orthogonal signaling. The phases of the subcarriers received at the different antennas are compared by different techniques and then the phases of the signals for different antennas are adjusted for a subsequent transmission over the OFDM interface. The phase (and optionally amplitude) adjustment is calculated in only one (transmitting) side and no orthogonal signaling required. The number of antennas can be increased as much as necessary to get a sharper beam. The negative effects of fading and interference can be reduced so that at same time a down link transmission power can be reduced.Type: GrantFiled: April 17, 2001Date of Patent: August 19, 2008Assignee: Sony Deutschland GmbHInventor: Seiichi Izumi
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Patent number: 7414963Abstract: A method of processing a received OFDM symbol is disclosed. The received OFDM symbol has a symbol portion and a zero suffix portion. An information bearing portion of the zero suffix portion that is likely to contain information is determined and is combined with the symbol portion.Type: GrantFiled: April 4, 2005Date of Patent: August 19, 2008Assignee: Staccato Communications, Inc.Inventors: Nishant Kumar, Dan Meacham
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Patent number: 7414964Abstract: A method and apparatus are provided for selecting and signalling the identity of sub-carriers to be used for transmission of data in a radio communication system, and for using other sub-carriers. A remote unit determines which sub-carriers are acceptable for use in data transmission by comparing the signal to interference ratio of each sub-carrier with a threshold. A sequence of numbers is generated using one set of values to identify acceptable sub-carriers and another set of values to identify unacceptable sub-carriers. The sequence of numbers is transmitted to a base station. The average signal to interference ratio of sub-carriers whose signal to interference ratio was above the threshold can also be transmitted to the base station, thereby allowing the base station to determine an optimum set of transmission parameters for use only in the acceptable sub-carriers. Alternatively, the remote unit can determine the optimum set of transmission parameters itself for transmission to the base station.Type: GrantFiled: February 3, 2006Date of Patent: August 19, 2008Assignee: Nortel Networks LimitedInventors: Bassam M. Hashem, David G. Steer, Shalini S. Periyalwar
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Patent number: 7414965Abstract: A network element with equipment protection has first and second redundant signal paths for first and second redundant signals; a selector for selecting either of the two redundant signals as active; and first and second transition monitors coupled to the first and second signal paths, respectively, for monitoring the first and second signals for bit level transitions. The selector is controlled by the transition monitors to alter selection in the case that the selected signal does not contain bit level transitions while the non-selected signal does.Type: GrantFiled: April 2, 2004Date of Patent: August 19, 2008Assignee: AlcatelInventors: Michael Joachim Wolf, Werner Beisel
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Patent number: 7414967Abstract: A method of route distribution for implementing multi-service optimization in Synchronous Digital Hierarchy Transmit Network comprises the following steps: A. dividing the SDH transmit network into subnets in term of rings to form a plurality of ring subnets, calculating initial routes of all services demand in the SDH transmit network; B. judging whether there are link resource overload between subnets and inside subnets respectively, if yes, recalculating the route; C. judging whether the load balance index is satisfied by ring subnet, if yes, performing route adjustment; D. after dividing the subnets into edge subnets and core subnets, judging whether the aggregative indicator of each link in the core subnets satisfies convergence condition, if no, checking whether the route calculation times exceeds the threshold, if yes, ending; otherwise, recalculating the corresponding routes.Type: GrantFiled: March 17, 2005Date of Patent: August 19, 2008Assignee: Huawei Technologies Co., Ltd.Inventors: Qi Ao, Liang Liu
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Method for call admission on packet voice system statistical multiplexing and dynamic voice encoding
Patent number: 7414968Abstract: An AAL2/SSCS packet voice system multiplexes various forms of voice-band traffic including voice packets, fax packets, and data packets into a virtual circuit (VC). This AAL2/SSCS packet voice system executes a dynamic call admission algorithm that takes into account call type in deciding whether to admit a new call to the VC. In particular, this approach takes into account different bandwidth needs for different call types. The AAL2/SSCS packet voice system also performs bit or block dropping on voice packets to mitigate the effects of traffic congestion. The bit or block dropping is done based on the packet queue fill value exceeding at least one queue threshold. Further, the AAL2/SSCS packet voice system also dynamically varies a queue threshold as a function of capacity.Type: GrantFiled: March 9, 2000Date of Patent: August 19, 2008Assignee: Lucent Technologies Inc.Inventors: Kotikalapudi Sriram, Yung-Terng Wang -
Patent number: 7414969Abstract: A system and method are provided for periodic stream admission control in an IEEE 802.11 network. The method comprises: at an access point (AP), receiving a transmit specification, including a requested bandwidth, from a quality of service station (QSTA); computing Ttemp, the time equivalent to the requested bandwidth; computing Tall, the time already allocated; and, computing Tres, the total time available. IfTtemp+Tall<Tres, then the QSTA is admitted. If Ttemp+Tall>Tres, the QSTA is not admitted. Some aspects of the method further comprise: monitoring the bandwidth of the admitted QSTA. In another aspect, the method: determines the bandwidth required by the admitted QSTA; and, modifies the bandwidth of the admitted QSTA in response to the determined QSTA requirements. In one aspect, the method: monitors channel conditions; and, modifies the bandwidth of the admitted QSTA in response to the channel conditions.Type: GrantFiled: October 15, 2003Date of Patent: August 19, 2008Assignee: Sharp Laboratories of America, Inc.Inventor: Srinivas Kandala
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Patent number: 7414970Abstract: An apparatus in one example may have: at least two endpoints operatively coupled to one another via an application function (AF) in a home network; a combined policy decision function (AAA-PDF) operatively coupled to the AF; a combined policy decision enforcement (PDE) operatively coupled to the one of the endpoints; the AAA-PDF operatively coupled to the PDE; and a QoS managed bearer that is operatively connected to the endpoints.Type: GrantFiled: April 4, 2005Date of Patent: August 19, 2008Assignee: Lucent Technologies Inc.Inventor: Thomas T. Towle
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Patent number: 7414971Abstract: A method converts an input data rate associated with N units of data to an output data rate associated with M units of data. The method includes calculating N write-control parameters each associated with one of M addresses of an output memory, directing each of N values of input data to an associated address of the output memory in response to the N calculated write-control parameters, and reading the output memory to provide output data associated with the output data rate. If N is greater than M, some of the N write-control parameters are associated with at least one shared address of the M addresses. If M is greater than N, all of the N write-control parameters are associated with different addresses of the M addresses. An apparatus is configured to implement this method.Type: GrantFiled: September 3, 2004Date of Patent: August 19, 2008Assignee: Analog Devices, Inc.Inventors: Guolin Pan, Anshoo Tandon, Ravikumar Ramanathan, Michael J. Lopez
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Patent number: 7414972Abstract: Systems and methods of reducing service jitter in WFQ scheduling schemes used in packet traffic management are described. Service jitter is the variance in time between when a queue should have been selected for servicing and when it was actually serviced. The service jitter is generally not a problem in lower speed applications but in a high speed implementation such as a OC192 device latency can lead to downstream service contract violations. According to the invention jitter is controlled by applying a dampening factor to a difference amount that is used by the WFQ process to adjust its timing of queue selection. The difference amount is queue-specific and is a running difference between calculated and actual queue servicing times.Type: GrantFiled: January 11, 2005Date of Patent: August 19, 2008Assignee: Alcatel LucentInventors: Adrian Grah, Bin Du
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Patent number: 7414973Abstract: Communication traffic management systems and methods are disclosed. A threshold status of a communication traffic queue of a second communication traffic management device which is capable of receiving communication traffic from a first communication traffic management device is determined, by comparing a depth of the queue to a corresponding threshold for instance. A rate of transfer of communication traffic to the second device, and possibly to particular queues of the second device from corresponding queues of the first device, is controlled based on the threshold status. Transmission of communication traffic from the queues of the second device may thus be in accordance with one communication traffic management scheme, whereas the content of each queue of the second device is controlled according to another communication traffic management scheme used by the first device to transfer communication traffic from its queues, to thereby provide for complex combined communication traffic management.Type: GrantFiled: January 24, 2005Date of Patent: August 19, 2008Assignee: Alcatel LucentInventors: Neil Darren Hart, Paul Thomas Kondrat, David Martin Harvey, Shafiq Pirbhai, Shawn McAllister, Mark Alexander Leith Smallwood
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Patent number: 7414974Abstract: A transmission control apparatus of the present invention includes a reliable service unit for providing reliable peer-to-peer data communication at layer 2 of a TCP/IP stack, and a setup unit for setting the reliable service unit. The reliable service unit includes a fragmentation part for fragmenting a service data unit (SDU) from an upper layer into protocol data units (PDUs) of a predetermined length, a sending buffer for temporarily storing the PDUs from the fragmentation part, a receiving buffer for temporarily storing PDUs received through a communication channel, a reassemble part for assembling the PDUs stored in the receiving buffer to a SDU of the upper layer, a poller for controlling data transmission/reception by checking network conditions, and a control unit for controlling at least one of the fragmentation part, sending buffer, receiving buffer, reassemble part, and poller.Type: GrantFiled: September 4, 2002Date of Patent: August 19, 2008Assignee: LG Electronics Inc.Inventor: Young Lak Kim
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Patent number: 7414975Abstract: There are disclosed processes and systems relating to protocol stacks. The protocol stack may be run entirely in a single memory space. There may be a communal memory region available to certain layers of the protocol stack. The layers of the protocol stack may form condensed versions of data and headers, and data units may be formed by hardware within the device when needed. After transmission, data units may be immediately deleted but recreated if needed for retransmission.Type: GrantFiled: March 24, 2005Date of Patent: August 19, 2008Assignee: IXIAInventor: Jan Olderdissen
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Patent number: 7414976Abstract: A method and apparatus to insert control blocks into a stream of data user blocks. Data user blocks are transmitted onto a network during transmission slots. One of the data user blocks is buffered during one of the transmission slots. Instead of transmitting the buffered data user block during this transmission slot, a control block is transmitted onto the network in the data user block's place. Transmission of the data user block is delayed until the next transmission slot. The control block is inserted at a required position into the stream of data user blocks at a transmit engine, as opposed to a queue manager, leaving the queue manager unconcerned with the insertion details of the control block. Insertion of the control block by the transmit engine enables the queue manager to handle frames containing large numbers of user blocks as a single unit (e.g., such as is the case with AAL-5) and avoid complications related to inserting the control block in the midst of these frames.Type: GrantFiled: December 16, 2003Date of Patent: August 19, 2008Assignee: Intel CorporationInventors: Muthaiah Venkatachalam, Vedvyas Shanbhogue, Elena Chaikovsky, Rajendra Yavatkar
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Patent number: 7414977Abstract: An ad-hoc wireless communication network includes multiple nodes. Each node maintains a routing table. The routing table is constructed by broadcasting route request packets from a source node. The request packet includes an address of a destination node. Intermediate nodes in the network receiving the request packet, determine power and delay cost associated with the intermediate node participating in the route. If the cost is less than a threshold value, then the intermediate node participates in the routing of packets for other nodes. The intermediate node then sends a reply packet back to the source node. The reply packet includes the intermediate node addresses, as well as the power and delay costs. The source can thus construct the routing table. The source node can select a particular node for transferring application data packets based on either the power cost, the delay cost or both costs.Type: GrantFiled: November 25, 2003Date of Patent: August 19, 2008Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Philip Orlik, Zafer Sahinoglu, Jinyun Zhang
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Patent number: 7414978Abstract: A method and computer program product for performing minimum cost routing with network coding is presented. The method and system model a network as a directed graph. A cost per unit flow is associated with each link of the directed graph. A link capacity is associated with each link of the directed graph. A network code is then computed that sets up a routing connection that achieves an optimal cost using the cost per unit flow for each link of the directed graph and using the link capacity for each link of the directed graph.Type: GrantFiled: December 30, 2004Date of Patent: August 19, 2008Assignee: Massachusetts Institute of TechnologyInventors: Desmond S. Lun, Muriel Medard, Tracey Ho, Ralf Koetter, Niranjan Ratnakar
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Patent number: 7414979Abstract: Systems and methods for implementing per-session load balancing of packets that increase traffic sharing and reduce systematic unequal distribution of traffic are provided by virtue of one embodiment of the present invention. A method for operating a selected router is provided that uses a load balancing algorithm that is configured to de-correlate distribution of sessions among the active paths at the selected router relative to distributions of sessions of other algorithms at other routers of said network. Packets arriving at the selected router are assigned to an output path according to the load balancing algorithm. A method of routing a packet received at a router having an associated identifier is provided. The source address and a destination address of the packet are obtained.Type: GrantFiled: May 26, 2006Date of Patent: August 19, 2008Assignee: Cisco Technology, Inc.Inventor: Neil Alasdair James Jarvis
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Patent number: 7414980Abstract: The present invention is a method and system for estimating interference. Packet characteristics of relevant packets within the channel at a given point in time may be processed. For example, a power level, occupied frequency and corresponding time references may be accumulated and stored for each relevant packet within the channel at a given point in time. As each packet is processed for demodulation, the channel samples, at which interference occurred, may be appropriately weighted based on the packet characteristics. Advantageously, the nature of the interfering channel traffic may be measured to properly de-weight the interference in a computationally efficient manner.Type: GrantFiled: April 4, 2005Date of Patent: August 19, 2008Assignee: Rockwell Collins, Inc.Inventors: Carlos J. Chavez, Robert J. Frank, Erik M. Sjolander
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Patent number: 7414981Abstract: A system and method is provided for higher-level service intelligence to cooperatively interoperate via a common session control and uniformly control and coordinate at least one transport resource provided by a communication network service provider. Including in the system is at least one association controller (AC) which is connectable to one or more communications networks so as to communicate with a systems entity located therein. In particular, the AC is configured to dynamically receive event registration list (ERL) which include a listing of events, wherein the list is received through an interactive exchange with an integrated services controller (ISC) associated with the particular AC. Receipt of the list registers one or more events for communications services which have a notification interest in the particular event.Type: GrantFiled: February 28, 2002Date of Patent: August 19, 2008Assignee: Qwest Communications International, Inc.Inventors: Paul Daniel Jaramillo, Jafar S. Nabkel, Ronald J. Egan
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Patent number: 7414982Abstract: In one embodiment, a first node among a number of distributed nodes capable of forming or reforming a communication network between the nodes, each of the nodes including functionally similar components for forming or reforming such a network, includes a memory for storing values for variables for the node.Type: GrantFiled: June 24, 2003Date of Patent: August 19, 2008Assignee: Raytheon CompanyInventors: Stephen P. Hershey, William W. Su
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Patent number: 7414983Abstract: In the present technique of a data transmission management, responsive to a reselection during a data transmission, a determination (314, 514) is made as to whether remaining untransmitted data blocks of the data transmission can be sent within an allowed transmission time. If so, the remaining untransmitted data blocks are transmitted (318, 518) to complete the data transmission. If, however, the remaining untransmitted data blocks cannot be transmitted within the allowed transmission time, the communication link is terminated (312, 510) to stop the downlink data transmission with a serving station.Type: GrantFiled: December 30, 2004Date of Patent: August 19, 2008Assignee: Motorola, Inc.Inventors: Damondaran Vasudevan, Gary E. Western, Zhou Gao, Patrick R. Marcell
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Patent number: 7414984Abstract: A system and method for efficiently adding a new network resource to a digital video network, without the need to purchase costly ancillary network hardware or extensive manual configuration, is disclosed. The inventive system and method provide for a loop-through for adding new resources to a digital video network. The present invention provides for the resources to be daisy chained from the network switch, where each resource is configured simply as either a loop-through (“LT”) resource or the “last” resource in the daisy chain. Then, only upstream traffic with Media Access Control (“MAC”) addresses of upstream LT resources are transmitted out of the loop-through by the last network resource.Type: GrantFiled: August 27, 2004Date of Patent: August 19, 2008Assignee: General Instrument CorporationInventors: Robert E. Mack, Scott Randell, David H. Brouda
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Patent number: 7414985Abstract: A method and system for aggregating a plurality of parallel communications links transmitting data between adjacent nodes in a network is provided. The method simplifies network topology by replacing multiple parallel communications links between nodes in the network with a single aggregated link. The method advertises the available bandwidth of each aggregated link to the network, the available bandwidth being the maximum bandwidth available for any one of the parallel links in the aggregate. The method permits each aggregated link to select which of the parallel links in the aggregate is to be used to transfer data from one node to the other. Aggregating links can be automatic and based on one or more predetermined criteria, such as the service class supported by the parallel links.Type: GrantFiled: February 1, 2002Date of Patent: August 19, 2008Assignee: Ciena CorporationInventors: Theodore E. Tedijanto, Paul Curtis, Neeraj Gulati, Helen Zhang
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Patent number: 7414986Abstract: A system and method are provided for controlling bandwidth allocation in a wireless local area network (wLAN). The method comprises: expressing device bandwidth allocations in terms of a time base; in response to expressing the bandwidth allocation in terms of a time base, monitoring network communications; and, measuring the allocated bandwidths. The method may further comprise: establishing polling schedules in response to the time-based bandwidth allocation; and, de-energizing devices in response to the polling schedules. Expressing device bandwidth allocations in terms of a time base includes establishing: an inter-transmission opportunity (TXOP) interval; and, a TXOP jitter. These fields are supplied in the IEEE 802.11e transmit specification (TSPEC). Then, de-energizing devices in response to the polling schedule includes disengaging transmission and receiving functions in the minimum TXOP intervals between polling events, where the minimum TXOP interval is the inter-TXOP interval minus the TXOP jitter.Type: GrantFiled: July 31, 2003Date of Patent: August 19, 2008Assignee: Sharp Laboratories of America, Inc.Inventors: Srinivas Kandala, John Kowalski, Yoshihiro Ohtani, Shugong Xu
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Patent number: 7414987Abstract: A hybrid cellular telephonic and satellite radio broadcast system for enabling a wireless mobile computer to rapidly and effectively access information from the Web. The combination of a mobile wireless receiving computer, with wireless cellular telecommunication associated with the receiving computer for transmitting a request for data from the receiving computer to the Web, an implementation for accessing the requested data from the Web, a satellite transponder, wireless communication for transmitting said accessed requested data to the satellite transponder, an implementation on the satellite transponder for broadcasting the accessed requested data and apparatus in the mobile wireless receiving computer for receiving the broadcast data.Type: GrantFiled: May 5, 2005Date of Patent: August 19, 2008Assignee: International Business Machines CorporationInventors: Timothy Alan Dietz, Anthony Cappa Spielberg
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Patent number: 7414988Abstract: A location beacon database and server, method of building location beacon database, and location based service using same. Wi-Fi access points are located in a target geographical area to build a reference database of locations of Wi-Fi access points. At least one vehicle is deployed including at least one scanning device having a GPS device and a Wi-Fi radio device and including a Wi-Fi antenna system. The target area is traversed in a programmatic route to avoid arterial bias. The programmatic route includes substantially all drivable streets in the target geographical area and solves an Eulerian cycle problem of a graph represented by said drivable streets. While traversing the target area, Wi-Fi identity information and GPS location information is detected. The location information is used to reverse triangulate the position of the detected Wi-Fi access point; and the position of the detected access point is recorded in a reference database.Type: GrantFiled: October 28, 2005Date of Patent: August 19, 2008Assignee: Skyhook Wireless, Inc.Inventors: Russel Kipp Jones, Farshid Alizadeh-Shabdiz, Edward James Morgan, Michael George Shean
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Patent number: 7414989Abstract: A method for ACK/NACK determination reliability for a communication device includes a first step of defining a supplementary indicator of message acceptability. A next step includes sending data from a communication device to a BTS on an uplink channel. A next step includes checking the data to see if it was properly received. A next step includes providing the supplementary indicator of message acceptability to the communication device in addition to ACK/NACK information. A next step includes utilizing the supplementary indicator of message acceptability to determine a reliability of the ACK/NACK information.Type: GrantFiled: May 7, 2003Date of Patent: August 19, 2008Assignee: Motorola, Inc.Inventors: Ravi Kuchibhotla, Robert T. Love
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Patent number: 7414990Abstract: A controller (103a, 103b) provides dynamic capacity, for use in connection with a communication network (101). A processor of the controller (103a, 103b) that can be utilized in the communication network can be configured to facilitate determining whether a current load level is below a predetermined low usage, and responsive thereto, adjusts a bearer configuration to allow higher throughput per user. Further, the processor (103a, 103b) can be configured to facilitate determining whether the current load level exceeds a predetermined high usage, and responsive thereto, adjusting the bearer configuration to allow lower throughput per user.Type: GrantFiled: September 28, 2004Date of Patent: August 19, 2008Assignee: Motorola, Inc.Inventors: Dennis W. Gilliland, Michael S. Witherell
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Patent number: 7414991Abstract: A method for selecting data packets includes including identifying available data packets for transmission, determining a number of time-slots available for the transmission, identifying data packet types that fit into the available time-slots and meet a minimum transfer length requirement, and determining whether any of the identified data packet types are capable of transmitting the entire required data length. If so, a data packet type capable of transmitting most data in the shortest time is chosen for the transmission from the data packet types capable of transmitting the entire required data length. If not, a data packet type capable of transmitting most data in the shortest time is chosen for the transmission from the identified data packet types.Type: GrantFiled: November 14, 2001Date of Patent: August 19, 2008Assignee: Intel CorporationInventors: David Emerson, Seh Kwa
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Patent number: 7414992Abstract: A communication unit (10) with dual-mode operating capability comprises: a receiver (203, 204) and a transmitter (207, 208) for supporting an initial connection with another communication unit (12) on a first wireless network (16, 18, 20); and a controller (205), coupled to and controlling the receiver and transmitter, to maintain the initial connection and receive messages from or send messages to the other communications unit to effectuate a new connection over a second wireless network (11). A corresponding method includes while participating in an initial connection (302) detecting availability of a new connection (304) and establishing the new connection by exchanging messages between the communication units over the initial connection (310, 312).Type: GrantFiled: June 30, 2003Date of Patent: August 19, 2008Assignee: Motorola, Inc.Inventors: Alex P. Hirsbrunner, Anatoly S. Belkin, Ajaykumar Idnani
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Patent number: 7414993Abstract: Disclosed herein is an intelligent channel selection apparatus and method against various interferers in wireless communication systems, and a receiver using the same. The intelligent channel selection apparatus includes a channel power measurement unit, a channel list storage unit, a channel selection data generation unit and a channel selection unit. The channel power measurement unit measures received signal channel power of a plurality of available channels and storing the received signal channel power as channel power data. The channel list storage unit arranges the plurality of available channels and storing the plurality of available channels in a channel list. The channel selection data generation unit generates data for channel selection based on the signal channel power data and the frequency offsets of the channels of the channel list. The channel selection unit selects the highest priority channel from the channel list based on the data for channel selection.Type: GrantFiled: June 24, 2004Date of Patent: August 19, 2008Assignee: Korea Electronics Technology InstituteInventors: Hae-Moon Seo, Yong-Kuk Park, Kwang-Ho Won, June-Jae Yoo
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Patent number: 7414994Abstract: A method for subcarrier allocation and loading for a multi-carrier, multi-subscriber system is described. At least one cluster in a first and second set of clusters of subcarriers is associated for use in communication with a first and second subscriber, respectively. Then, for each cluster associated for use in communication with the first subscriber and the second subscriber, usage of that cluster is multiplexed between the first subscriber during a first time division and the second subscriber during a second time division.Type: GrantFiled: November 22, 2006Date of Patent: August 19, 2008Assignee: Adaptix, Inc.Inventors: Xiaodong Li, Hui Liu, Hujun Yin
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Patent number: 7414995Abstract: In general, one embodiment of the invention is a radio access point (RAP) system adapted to a wired network. The RAP system comprises a radio access point and a switch coupled together by an interconnect. The radio access point includes components to digitally sample a detected, wireless analog signal thereby producing digital data. The digital data is placed into a frame for transmission over the interconnect. The switch includes a radio access point (RAP) component that recovers the digital data from the frame transmitted over the interconnect. The RAP component processes the digital data to recover media access control (MAC) frames containing data for subsequent transmission over the wired network.Type: GrantFiled: September 9, 2002Date of Patent: August 19, 2008Assignee: Aruba Networks, Inc.Inventors: Keerti G. Melkote, Pankaj S. Manglik, Joel F. Adam
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Patent number: 7414996Abstract: The invention provides a system whereby a node can configure itself automatically with an address when it joins or establishes a network. Once the network is established, the nodes within that network exchange hello messages that are modified to give an indication of the network to which the nodes belongs. If two networks begin to merge with each other then the nodes at the edge of that network will receive hello messages from nodes which identify two different networks. When this occurs, the node can determine that network merging is occurring and carry out the process of duplicate address detection to ensure the uniqueness of its address within the entire combined network.Type: GrantFiled: February 13, 2004Date of Patent: August 19, 2008Assignee: Kabushiki Kaisha ToshibaInventor: Zhong Fan
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Patent number: 7414997Abstract: Network efficiency is improved by building and maintaining path integrity tables in nodes of a network. The tables include path integrity information for paths associated with the nodes. A path is defined by a source address, a destination address and a port or version number. Once a node is made aware of a path, either by handling network message traffic associated with the path or through manual entry, the node maintains path status information with information provided by normal network message traffic, or absent the normal network message traffic, by transmitting Echo Request messages and processing information related to Echo Response messages or the lack thereof. Information related to paths that are disabled for longer than a disabled path duration limit is deleted from the tables. A Gratuitous GTP Echo Response message can notify other nodes of an administrative state change in a node.Type: GrantFiled: March 12, 2004Date of Patent: August 19, 2008Assignee: Lucent Technologies Inc.Inventor: Bryan A. Lauer
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Patent number: 7414998Abstract: A Bluetooth responder device for transmitting non-Bluetooth related data is disclosed. The device (2) comprises means for receiving non-Bluetooth data to be sent, means for receiving an incoming Bluetooth inquiry packet, means for generating a Bluetooth FHS packet to be sent in response to the incoming Bluetooth inquiry packet, which FHS packet represents data received via the input; and means for sending the generated Bluetooth FHS packet. The non-Bluetooth data may be carried in an undefined field of the FHS packet.Type: GrantFiled: November 22, 2004Date of Patent: August 19, 2008Assignee: Ezurio LimitedInventor: Mahendra J Tailor
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Patent number: 7414999Abstract: A transmitter site transmits a plurality of data signals over a shared spectrum in a code division multiple access communication system. Each transmitted data signal experiences a similar channel response. A combined signal of the transmitted data signals is received. The combined signal is sampled at a multiple of the chip rate. The channel response for the combined signal is determined. A first element of a spread data vector is determined using the combined signal samples and the estimated channel response. Using a factor from the first element determination, remaining elements of the spread data vector are determined. The data of the data signals is determined using the determined elements of the spread data vector.Type: GrantFiled: September 12, 2006Date of Patent: August 19, 2008Assignee: Interdigital Technology CorporationInventors: Parthapratim De, Ariela Zeira, Jung-Lin Pan, Raj Mani Misra
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Patent number: 7415000Abstract: In base station 100, TA control amount calculating section 106 calculates a time alignment control amount based on a signal received from communication terminal station 150. Then, TA control amount rounding section 107 performs rounding on the time alignment control amount to obtain a time aliment control amount of the predetermined number of significant digits and a rounding error amount. Reception timing correcting section 109 corrects the reception timing detected in reception timing detecting section 103, using the rounding error amount. Receiving section 104 obtains demodulated data from a received signal at the corrected reception timing.Type: GrantFiled: July 18, 2002Date of Patent: August 19, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Kimihiko Ishikawa
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Patent number: 7415001Abstract: The invention relates to the field of signal processing for telecommunications, and concerns a method and receiver for processing a multi-user signal.Type: GrantFiled: June 13, 2003Date of Patent: August 19, 2008Assignee: DSpace Pty LtdInventors: Sanjeev Naguleswaran, Mark Rice
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Patent number: 7415002Abstract: A device that synchronizes circuits over asynchronous links is disclosed. Some embodiments of the invention include a device that comprises a plurality of circuits. One of the plurality of circuits is designated as a “master” circuit. The master circuit is configured to send a first synchronization signal to one or more of the plurality of circuits, and each circuit that receives the first synchronization signal is configured to responsively send a second synchronization signal to one or more of the plurality of circuits.Type: GrantFiled: October 24, 2003Date of Patent: August 19, 2008Assignee: Brocade Communications, Inc.Inventors: Kreg A. Martin, Ronald K. Kreuzenstein, John M. Terry
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Patent number: 7415003Abstract: In a communication network managing system, at a network manager, a management section manages QoS (Quality of Service) capability management information from element managers, a request reception section receives a request for a target QoS capability, and a section and notification section selects a candidate subnetwork such as to satisfy the target QoS capability for which the request has been received by the request reception section, and notifies the corresponding element managers of information about the selection. At the individual element manager, based on the selection information from the selection and notification section of the network manager, a control section controls the corresponding subnetwork.Type: GrantFiled: September 26, 2000Date of Patent: August 19, 2008Assignee: Fujitsu LimitedInventors: Takao Ogura, Kenichi Fukuda, Makoto Minoura, Hitoshi Ueno, Kohei Iseda
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Patent number: 7415004Abstract: A method for establishing VoIP connection between a caller and a called party. Upon receipt of a first dial tone, the caller enters only the access code of the called party's central office. Then, VoIP call setup and a speech path are established between a remote gateway and the caller via a local gateway. A second dial tone is generated by the central office of the PSTN of the called party and this dial tone is relayed to the caller which prompts the caller to enter the telephone number of the called party to thereby establish communication between the caller and the called party.Type: GrantFiled: October 15, 2002Date of Patent: August 19, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Eung-Moon Yeom, Jung-Gi Kim
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Patent number: 7415005Abstract: A method and apparatus for a communication system technique involving ad hoc selection of at least two audio streams is provided. Each of the at least two audio streams is a packetized version of an audio source. A data connection exists between a server and a client where a transport protocol actively propagates the at least two audio streams from the server to the client. Furthermore, software instructions executable on the client indicate a presence of the at least two audio streams, allow selection of at least one of the at least two audio streams, and direct the selected at least one of the at least two audio streams for audio playback.Type: GrantFiled: October 24, 2002Date of Patent: August 19, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Mitchell G. Macha, John T. Bullock
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Patent number: 7415006Abstract: For transporting data packets of a data stream between a packet-oriented network (LAN) and a channel-oriented data stream processing module (VMOD), a data stream controller (ST) is provided which, via a data channel allocation module (VMUX), accesses an interface module (PS) for exchanging the data packets with the network (LAN) and/or accesses the data stream processing module (VMOD). The data stream controller (ST) transmits a data channel allocation information item (DKl1, DKl2) to the interface module (PS) and/or to the data stream processing module (VMOD). Using a data channel allocation information item (DKl1, DKl2) in each case transmitted, the data packets are transmitted directly between the interface module (PS) and the data stream processing module (VMOD), bypassing the data channel allocation module (VMUX).Type: GrantFiled: December 16, 2002Date of Patent: August 19, 2008Assignee: Siemens AktiengesellschaftInventor: Manfred Riedel