51st week of 2008 patent applcation highlights part 28 |
Patent application number | Title | Published |
20080310254 | SYSTEM AND METHOD FOR ADJUSTING SENSITIVITY OF AN ACOUSTIC SENSOR - A method of adjusting a sensitivity of an acoustic detector. The acoustic detector receives a signal from a remote device. The signal embodies an operating instruction for the acoustic detector. The signal is decoded into an operating instruction for the acoustic detector. The sensitivity of the acoustic detector is adjusted according to the operating instruction. The acoustic detector can increase or decrease the sensitivity. After the sensitivity is adjusted, the acoustic detector sends a confirmation of the adjustment to the user. | 2008-12-18 |
20080310255 | Self-Supporting and Self-Aligning Vibration Excitator - A vibration excitator is described, comprising: a main body ( | 2008-12-18 |
20080310256 | Adaptive High Frequency Laser Sonar System - An acoustic sensing device includes a housing having an internal cavity filled with a vibration decoupling medium. An acoustic window formed of an acoustically transparent material is mounted in the housing. This mounting can be by antivibration mounts to prevent housing noise from affecting the acoustic window. A scanning laser vibrometer is positioned within the housing and directed to detect vibrations of the acoustic window. Antivibration mounts are joined between said scanning laser vibrometer and said housing. In further embodiments, the scanning laser vibrometer detects vibrations at a plurality of locations on the acoustic window forming a virtual array. | 2008-12-18 |
20080310257 | Time Piece Chronograph Clockwork Movement - A chronograph clockwork movement for measuring time includes a control lever actuatable by a first control member for alternatively activating or deactivating a time measurement, clutch elements for driving or not a second timer in response to an action produced on the control lever and selective locking members for locking the second timer in response to an action produced on the control lever. A lever and a hammer for resetting the second timer to zero are also provided. The clockwork movement is arranged in such a way that a user does not feel any difference, while measuring a time, whether the second timer is pre-set or not. The clockwork movement has a structure enabling to activate time measuring by delaying the effective departure of the second timer until an external resetting device controlling the lever is released in the rest position thereof. | 2008-12-18 |
20080310258 | Clockwork Movement - A clockwork movement includes at least two control elements which are movable with respect to the frame thereof, are used for interacting with the same external control member in response to the activation thereof and are positioned remotely to each other in the direction of the clockwork movement thickness. The clockwork movement has an intermediate connecting unit which is rotatable about an axis substantially extending in the direction of the clockwork movement thickness, pivotally mounted on the clockwork movement frame element and provided with a reception area which is distant from the axis and exposable to a force produced in response to the control member activation. The intermediate unit also includes at least two contact areas each of which is used for producing a force on the corresponding control element and which are located on both sides of the reception area in the direction of the axis. | 2008-12-18 |
20080310259 | MECHANISM FOR MOVING AN INDICATOR OF A CLOCK - A mechanism is disclosed for setting a clock hand, which indicates for example a date in defined positions of a scale. The mechanism comprises a cam disc and a first rake which is connected to the cam disc in a force-transmitting manner and has teeth which engage into the teeth of a pinion and transmit a force. A second rake likewise has teeth that engage into the teeth of the pinion, wherein the second rake exerts a force on the teeth of the pinion that is opposite to the force exerted by the first rake exerts on the pinion. According to the invention, the first rake and the second rake are arranged so as to overlap, and the second rake can likewise be borne pivotally around the first axle. The embodiment has the advantage that it is space-saving and the rakes stabilize one another mutually. | 2008-12-18 |
20080310260 | Modular watch and device for securing a watch strap to a watch casing - A modular watchcase having a substantially hollow protective casing configured to hold a watch mechanism allowing passage for at least one watch control projection and a frame member configured to surround the casing and having anchor elements for the attachment of a watch strap. The frame member allows passage for the watch control projection, and a bezel ring is attachable to the enclosure without need of tools for easy interchangeability of the frame member. | 2008-12-18 |
20080310261 | OPTICAL PICKUP AND OPTICAL DISK APPARATUS - An optical pickup includes: a base; a lens holder that is provided on the base to hold an objective lens which collects a light beam emitted from a light source and applies it onto an optical disk; a supporting plate that is provided on the base and spaced from the lens holder in a direction orthogonal to a focusing direction in parallel with a plane including the focusing direction and a tracking direction; and a plurality of suspension wires that is provided over the lens holder and the supporting plate to movably support the lens holder in the focusing direction and the tracking direction with respect to the supporting plate. The supporting plate has flexibility. A damping member is provided on the mounting plate. When the supporting plate is bent in the longitudinal direction of the suspension wire, the damping member is deformed to absorb vibrations of the lens holder. | 2008-12-18 |
20080310262 | METHOD FOR AUTOMATICALLY CALIBRATING OUTPUT POWER OF OPTICAL PICK-UP HEAD AND OPTICAL DISC DRIVER USING THE METHOD - A method for automatically calibrating an output power of an optical pick-up head is provided. First, an optical disc is provided, wherein a relationship between the output power for writing the optical disc and a specific parameter corresponding thereto is defined as a first function. Next, the optical pick-up head is controlled to perform a writing operation on the optical disc according to an instruction value, and obtain the specific parameter corresponding to the instruction value. Next, the output power corresponding to the instruction value is obtained according to the first function and the specific parameter. Next, the instruction value is adjusted according to the instruction value and the output power, and the output power of the optical pick-up head is calibrated according to the adjusted instruction value. | 2008-12-18 |
20080310263 | COMPENSATION VALUE SETTING DEVICE AND COMPENSATION VALUE SETTING METHOD - A compensation value setting device selects, based on the first and second index values calculated by the first and second index value calculation sections for each combination of the spherical aberration compensation value and the lens' position compensation value, one combination of the spherical aberration compensation value and the lens' position compensation value and then sets the selected combination for correcting the spherical aberration and the position of the objective lens. | 2008-12-18 |
20080310264 | Information recording method and apparatus with suppressed mark edge jitters - Recording information is disclosed in which an information recording medium is irradiated with a recording energy beam that is power-modulated into at least a record power level and a record-ready power level lower than the record power level. The information is recorded on the recording medium in the form of length and interval of a mark portion. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion. | 2008-12-18 |
20080310265 | METHOD OF RECORDING DATA, METHOD OF MANUFACTURING READ-ONLY OPTICAL DISC, AND READ-ONLY OPTICAL DISC - A method of recording data includes: a first recording step of recording data in a condition that, within a certain error correction block in a data format in which error correction blocks with n rows and m columns including at least main data, error detection code, and error correction parity are formed, an allocated location of additional supplementary information is set in a location in the same column as an allocated location of the error detection code, and an additional recording area is formed for recording additional information containing the additional supplementary information and the error detection code and the error correction parity necessary to be recorded according to the recording of the additional supplementary information; and a second recording step of recording the additional information in the additional recording area after the data recording at the first step is executed. | 2008-12-18 |
20080310266 | Recording Device - A recording device is equipped with an input unit for inputting information data, a memory for storing the input information data, a writing unit for reading the information data stored in the memory, and writing the information data read from the memory on a disk-like recording medium having plural recording layers, and a control unit for changing a writing procedure by the writing unit, in accordance with a difference between a writing position on the disk-like recording medium by the writing unit and a position on the disk-like recording medium where the recording layer is to be transitioned, coming to a predetermined value. | 2008-12-18 |
20080310267 | Information processing apparatus, information processing method and computer program - An information processing apparatus includes a storage section storing subsequent data subsequently acquired or generated as data corresponding to a medium stored content, a control section executing a management process of managing subsequent data with respect to the storage section, the control section being configured to execute, as the management process of the subsequent data, a process of generating and recording subsequent data descriptive information including medium identification information corresponding to subsequent data and title identification information at a time of executing a process of recording subsequent data in the storage section, a process of generating display data based on the subsequent data descriptive information, and a process of reproducing or deleting subsequent data based on user designation information for the display data based on the subsequent data descriptive information. | 2008-12-18 |
20080310268 | POWER CONTROL SYSTEM AND METHOD OF OPTICAL DISK DRIVE - The present invention provides a power control system and a method which are capable of generating an optimized output power of the optical disk drive under a variation of operational environment. The power control system comprises a photo detecting unit and a laser emitting unit, two sample-and-hold circuits, two amplifiers, a power control unit, and a digital-to-analog converter. The sample-and-hold circuits and the amplifiers construct a power signal circuit for generating the reading or writing power signals to drive the laser driver. The photo detecting unit detects current laser power and generates a feedback signal. The power control unit is adapted to define a power to feedback signal transfer function and a power-to-DAC transfer function according a relationship between the laser power, the feedback signal and the DAC value. The power control unit transmits a compensating signal to the digital-to-analog converter for compensating the variation of laser power under a temperature variation. The method of the present invention is adapted to define the power to feedback signal transfer function and the power-to-DAC transfer function according the relationship between the laser power, the feedback signal and the DAC value. The compensating signal can be obtained from the power to feedback signal transfer function and the power-to-DAC transfer function for adjusting the total output power of the laser diode of the optical disk drive in order to maintain the output power of the laser diode in a stable state. Therefore, the recording performance of the optical disk drive can be improved by an optimized writing power of the laser emitting unit. | 2008-12-18 |
20080310269 | METHOD AND SYSTEM FOR CALIBRATING AN OPTIMIZED POWER - The present invention sets forth a method and a system for calibrating optimized power of an optical pick-up unit of an optical disk drive. The system comprises a micro-processor, and a signal processor. The micro-processor coupled to the optical pick-up unit sets an initial power corresponding to an optical disk, and calculates a predetermined number of power levels to cover the range of the initial power for performing a recording procedure. The signal processor coupled to the micro-processor determines whether a servo state failed during optimized power calibration, and calculates recording performance of each power level. The signal processor transmits the servo state and the recording performance to the micro-processor for determining the optimized power. | 2008-12-18 |
20080310270 | Information recording method and apparatus with suppressed mark edge jitters - Recording information is disclosed in which an information recording medium is irradiated with a recording energy beam that is power-modulated into at least a record power level and a record-ready power level lower than the record power level. The information is recorded on the recording medium in the form of length and interval of a mark portion. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion. | 2008-12-18 |
20080310271 | RECORDING AND/OR REPRODUCING APPARATUS AND CONTROL METHOD THEREOF - A recording and/or reproducing apparatus outputs a loading time of a recording medium through a display to inform a user of the loading time, and a control method thereof. The recording and/or reproducing apparatus includes a calculation unit to calculate loading time of a recording medium when the recording medium is inserted into the recording and/or reproducing apparatus, and an output unit to output the calculated loading time to a display. | 2008-12-18 |
20080310272 | Method and Recorder for Reducing Rejection of Record Carriers Due to Write Errors - When writing on a recordable medium the recorder can encounter write errors. When a write error occurrs the record carrier is discarded. By ignoring write errors in sections of the record carrier comprising unused information, for instance sections of the lead-in or lead-out the record carrier no longer needs to be discarded. | 2008-12-18 |
20080310273 | CIRCUIT FOR GENERATING TRACKING ERROR SIGNAL - A circuit for generating a tracking error signal is provided. The circuit includes a digitized circuit, a short signal removing circuit and phase comparator. The digitized circuit receives first and second pick-up signals outputted from a pick-up head, and respectively compares the first and the second pick-up signals with a reference signal to obtain a first digital signal and a second digital signal. The short signal removing circuit is used for removing pulses in the first and the second digital signals, wherein the pulse width of the removed pulses are shorter than a preset time, and the first and second digital without the removed pulses are respectively served as a first determining signal and a second determining signal. The phase comparator receives the first determining signal and the second determining signal for outputting the tracking error signal according to a phase difference between the first and the second determining signals. | 2008-12-18 |
20080310274 | Radial Tilt Estimation Via Diagonal Push-Pull - A device is arranged for scanning an optical record carrier ( | 2008-12-18 |
20080310275 | METHOD FOR DISPLAYING RESULT OF MEASUREMENT OF ECCENTRICITY - A method for displaying a result of measurement of eccentricity in an optical system is provided where an amount of eccentricity for each lens element's surface in a lens system can be displayed and where the amount of eccentricity displayed can be a magnified amount of eccentricity. Additionally a sectional view of the lens system can be displayed using scaling factor. | 2008-12-18 |
20080310276 | Method and apparatus of recording information in reduced waiting time - A method, apparatus and computer-readable recording medium are disclosed, for recording information in an information recording medium. The method includes a first step of outputting, in response to an initialization request for initializing the information recording medium, termination information indicative of termination of the initialization before the initialization starts, and a second step of starting the initialization at a predetermined timing after the output of the termination information. In this procedure, it is possible to start to record data in a blank disc sooner than in conventional methods. | 2008-12-18 |
20080310277 | STORAGE DEVICE - A storage device includes: a storage medium including a first and a second main surface; a first cover member disposed on the first main surface side; a second cover member in a frame shape disposed on the second main surface side corresponding to the first cover member; and a pair of hook portions connected to the second cover member and sandwiching outer edge portions of the first cover member. | 2008-12-18 |
20080310278 | De-Icing of Multi-Layer Storage Media - A device for recording information on a record carrier ( | 2008-12-18 |
20080310279 | Rewritable phase-change optical recording medium - A rewritable phase-change optical recording medium is provided, which includes a substrate, a first information layer, a spacer layer, a second information layer, and a cover layer. The second information layer includes a recording film containing Sb as a main component and V or V and In as second components. When an amorphous mark formed in the recording film is irradiated with a reproduction beam, crystallization of the amorphous mark occurs only in a central portion in the width direction of the amorphous mark. The width direction is orthogonal to the scanning direction of the laser beam. The recording film is formed of a material that exhibits a change in degree of modulation of 5% or less when recorded information is repeatedly reproduced. The change in degree of modulation is a change from when the number of times of reproduction is 100,000 to when it is 400,000. | 2008-12-18 |
20080310280 | INFORMATION RECORDING MEDIUM AND DISK APPARATUS USING THE MEDIUM - According to one embodiment, an information recording medium has a plurality of recording layers, and records and reproduces information by using a semiconductor layer of 450 nm or less. When reproducing information, letting x be the frequency of repetitive recording of a shortest mark length and shortest space length of the information, the ratio of the value of a highest level to the value of a level at x/190 of a sum signal detected within the frequency range of x/3240 to x/190 is lower than 32 dB, or the ratio of the average value of the amplitudes of signals of repetitive recording of the shortest mark length and shortest space length to the value of the highest level within the frequency range of x/3240 to x/190 is higher than 10 dB. | 2008-12-18 |
20080310281 | RECORDING AND REPRODUCING APPARATUS, RECORDING AND REPRODUCING METHOD, REPRODUCING APPARATUS, AND REPRODUCING METHOD - A recording and reproducing apparatus includes a spatial-light-intensity modulating unit, a spatial-light-phase modulating unit, an optical system that transmits light and leads the light to a hologram recording medium, a converting unit that converts an input data sequence; an amplitude and phase controlling unit that controls, during recording, the spatial-light-intensity modulating unit and the spatial-light-phase modulating unit to generate a signal light and a reference light, and controls, during reproduction, light intensity of each of pixels in a reference light area and a signal light area and controls a phase of each of the pixels, an image-signal acquiring unit that receives the reproduced image and the DC light and obtains two kinds of image signals, a difference calculating unit that calculates a difference between the two kinds of image signals, and a decoding unit that decodes data formed by a combination of the two kinds of values. | 2008-12-18 |
20080310282 | Method for Acquiring Optimum Position of Reserved Block in Holographic Storage System - A method for acquiring an optimum position of a reserved block in a holographic storage system is provided. Firstly, an initial offset error between an initial reserved block and its two nearest neighbors is computed. Then, according to a dynamically adjustable modified centroid function β′, a second reserved block is obtained by interpolating the covariance values associated with the initial reserved block and the respective two nearest neighbors. Afterwards, the optimum position of the reserved block is acquired according to the second reserved block and the initial offset error. | 2008-12-18 |
20080310283 | Method of Reading Out Information from a Multiple Layer Optical Recording Medium and Optical Readout Device - The present invention relates to a method of reading out information from a multiple layer optical recording medium ( | 2008-12-18 |
20080310284 | DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL PICKUP APPARATUS - An optical pickup apparatus includes a diffractive optical element, and an objective lens that focuses a light beam of a first wavelength λ | 2008-12-18 |
20080310285 | Laminated Wave Plate and Optical Pickup Using the Same - A laminated wave plate having a wider bandwidth at a desired retardation is provided. | 2008-12-18 |
20080310286 | OPTICAL PICKUP APPARATUS - An optical pickup apparatus comprising: an objective lens formed so that a first and second laser beams different in wavelength are respectively focused onto signal recording layers of a first and second optical discs; and a photodetector including a square-shaped light-receiving portion for being irradiated with return light, as a spot, of the first or second laser beam respectively reflected from the signal recording layers of the first or second optical discs, to generate a focus error signal, a length of a diagonal line of the light-receiving portion being substantially equal to a longer diameter of an elliptical spot formed in a direction of the diagonal line when the focus error signal is at a maximum level for an optical disc that is either one of the first and second optical discs, to which a laser beam shorter in wavelength out of the first and second laser beams is focused. | 2008-12-18 |
20080310287 | DEFORMABLE MIRROR APPARATUS, OPTICAL PICKUP AND OPTICAL DRIVE APPARATUS - A deformable mirror apparatus is disclosed. The apparatus includes a flexible member having a mirror on a surface and having a part having a different section form to form a convex on the opposite surface of the mirror such that a predetermined strength distribution is imparted to the flexible member; a base substrate; a strength securing member provided between the base substrate and the flexible member to support the flexible member from the base substrate side; and a driving section that deforms the form of the mirror by applying driving force to the opposite surface of the mirror of the flexible member. | 2008-12-18 |
20080310288 | Universal Numerical Disc of Optically Readable Type - A universal numerical disc comprising an essentially single moulded generally planar part having a printing side and a readable side carrying encoded data. The moulded part has a central opening and a ring-shaped area with increased thickness, disposed concentrically around the central opening at the side of the reading side, which reading side is provided with a protective resin coating. | 2008-12-18 |
20080310289 | Data Recording/Reproduction for Write-Once Discs - A recording method of the present invention includes the steps of: receiving a write instruction which specifies at least a logical sector in which data is to be written; determining whether the logical sector specified by the write instruction corresponds to a recorded physical sector or an unrecorded physical sector (S | 2008-12-18 |
20080310290 | Information Recording Medium, Information Recording Apparatus and Method, and Computer Program - An information recording medium ( | 2008-12-18 |
20080310291 | METHOD FOR RECOVERING MANAGEMENT INFORMATION OF A RECORDING MEDIUM AND APPARATUS THEREFOR - A method for recovering disc management information of a recording medium. (a) When the recording medium is not closed, a readable TDMS which is included in an in-use TDMA of TDMAs of the recording medium and is readable is searched for. (b) It is determined whether a piece of information associated with an inconsistency flag of the readable TDMS is reliable. (c) If the associated piece of information is unreliable, at least a detection condition is determined according to the information included in the readable TDMS and the in-use TDMA. (d) A detection procedure, constrained by the at least the detection condition, is performed on the recording medium for determining an update on the piece of information associated with the inconsistency flag. (e) An update TDMS is generated according to the readable TDMS and the update on the piece of information associated with the inconsistency flag. | 2008-12-18 |
20080310292 | OPTICAL DISK, OPTICAL DISK RECORDING AND REPRODUCING APPARATUS, METHOD FOR RECORDING, REPRODUCING AND DELETING DATA ON OPTICAL DISK, AND INFORMATION PROCESSING SYSTEM - A recording type optical disk on which data is recordable includes a data recording and reproducing area for recording data therein and reproducing data therefrom, and a read-only disk identification information area for recording disk identification information for identifying the optical disk therein. In the optical disk, the disk identification information is formed by removing a reflection film that is formed on the optical disk in a strip shape. The disk identification information includes an inherent disk identifier for each optical disk, and the data recording and reproducing area includes an area for recording encrypted data therein. The encrypted data is encrypted by using information including the disk identification information for identifying the optical disk as a key. | 2008-12-18 |
20080310293 | OPTICAL INFORMATION RECORDING MEDIUM AND METHOD OF RECORDING INFORMATION - The optical information recording medium comprises a reflective layer, a recording layer, a barrier layer, and a cover layer in this order on a surface of a support, and a layer formed by curing an ultraviolet radiation-curable composition between the barrier layer and the cover layer, the layer having a glass transition temperature of equal to or lower than 25° C. The surface of the support has pregrooves with a track pitch of 50 to 500 nm. The recording layer ranges in thickness from 1 to 100 nm on the lands and from 5 to 150 nm on the grooves, and comprises at least one azo dye compound selected from the group consisting of an azo compound and an azo metal complex compound comprising an azo compound and a metal ion or metal oxide ion, with an attenuation coefficient of 0.15 to 0.3 at a wavelength of 405 nm. | 2008-12-18 |
20080310294 | Recording method, master for optical disk, and optical recording medium - A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833). | 2008-12-18 |
20080310295 | METHODS FOR EXTRA APPENDING DATA IN A MULTIPLE LAYER DISC - A method for extra appending data in a multiple layer disc is provided. The capacity of the data zone in the multiple layer disc is fixed, and each layer comprises a plurality of appended sessions. When multiple layer disc is mounted, it is determined whether data is appended in zones following a middle zone. If the data is appended in the zones following the middle zone, a first jump address is obtained from a table of extended contents to serve a start address of appending the data. Data is appended to the multiple layer disc. An end address of appending the data is recorded in the table of extended contents to serve a second jump address for a next appending operation. | 2008-12-18 |
20080310296 | Systems and Methods for Transmit-Only Peak-to-Average Ratio Reduction in the Oversampled Regime Using Reserved Tones - Systems and methods for reducing the peak-to-average power ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal in the oversampled regime, using tones reserved for PAR reduction. A set of vectors corresponding to PAR tones is generated by processing out-of-phase symbols for each PAR tone to form a span matrix. The span matrix is used to find a best fit of a desired target signal to a time-domain compensation signal comprising only PAR tones. | 2008-12-18 |
20080310297 | ERROR CONTROL APPARATUS - A plurality of system board modules are connected to a crossbar module. An error detection unit detects an error in a packet received from a corresponding system board module. When an error is detected by the error detection unit, a transmission control unit issues a completion data generation request. When receiving the completion data generation request, a packet completion unit generates completion data. When receiving an error packet, a selector circuit outputs a completion packet in which completion data is provided in place of a data unit involving error. | 2008-12-18 |
20080310298 | Providing Bypass Switches to Bypass Faulty Nodes - A streamer or cable for use in subterranean surveying includes a communications link, a plurality of network nodes interconnected by the communications link, where each of the plurality of network nodes is configured to perform a self-test to detect a fault condition of the corresponding network node, and bypass switches to bypass faulty one or more network nodes. | 2008-12-18 |
20080310299 | Virtual Path Restoration Scheme Using Fast Dynamic Mesh Restoration in an Optical Network - A method for restoring a virtual path, provisioned between a source and a target node, in a mesh zoned optical network is described. The method, in one embodiment, broadcasts or floods restore path requests in the network to expedite the identification of an alternate route and minimize the service disruption for failed virtual path. The flooding of requests is controlled to ensure efficient performance of the network yet guaranteeing minimum restoration time to allow critical telecommunication related traffic to flow through the network with virtually no interruption. The constant update of nodal topology by each node allows a fast identification of alternate physical path for failed virtual path. | 2008-12-18 |
20080310300 | Traffic Activity-Based Forwarding Table Updates For Ethernet-Based Mobile Access Networks - A system and method for granting an association request from a mobile terminal, determining, during a predetermined time interval after granting the association request, if the mobile terminal has received traffic from a network and sent traffic to the network and sending a broadcast update packet to the network if it is determined that the mobile terminal has not both received traffic from and sent traffic to the network within the predetermined time interval. | 2008-12-18 |
20080310301 | SYSTEM AND METHOD FOR MANAGING PRE-EMPTION OF QUALITY OF SERVICE (QoS) ALLOCATIONS IN A NETWORK - A system and method manages Quality-of-Service (QoS) in a network by allocating resources, such as available network bandwidth. The network devices transmit and receive data traffic streams, each of which includes QoS parameters, including a priority level and bandwidth allocation. The method includes choosing which existing QoS allocations are pre-empted, notifying original requesters of pre-empted allocations, and re-establishing pre-empted allocations with appropriate modifications. If a new QoS request cannot be accommodated due to the previous allocations to lower-priority requesters, the existing lower-priority allocations are released until enough allocations are released to accommodate the new request. Once the new request is allocated, the pre-empted configurations may be reallocated. | 2008-12-18 |
20080310302 | LOAD BALANCING DISTRIBUTION OF DATA TO MULTIPLE RECIPIENTS ON A PEER-TO-PEER NETWORK - A method and system for load balancing the distribution of a file or block of data to multiple recipients on a peer to peer network is disclosed. | 2008-12-18 |
20080310303 | QUALITY OF SERVICE INFORMATION CONFIGURATION - Quality of service information can be used to facilitate wireless communication. A network entity, such as a terminal, as well as a network can initialize an authorization to establish a link using quality of service information. Various features can be integrated with the use of quality of service information, such as having quality of service reservation before a call and supplying a permanent identity for use in correlation. | 2008-12-18 |
20080310304 | EXTENDED REACH DATA NETWORK - In one embodiment, estimating a length of a network connection, determining whether the estimated network connection length deviates from a predetermined threshold range, modifying one or more signal characteristics when it is determined that the estimated network connection length deviates from the predetermined threshold range are provided. | 2008-12-18 |
20080310305 | Interruption control - A communications system in which a user may control interruptions to ongoing communications operations is provided. Using a communications device, a user may perform any suitable communications operation (e.g., voice, video or data communications). In response to receiving a communications request from another device, the communications device may determine whether the other device is authorized to interrupt the ongoing communications operation using any suitable approach (e.g., priority rankings of devices, or specific exceptions for certain devices). The interruption, if authorized, may be in any suitable form including, for example, audio interruptions, visual interruptions, physical interruptions, or any other suitable interruption type. | 2008-12-18 |
20080310306 | PROGRAMMABLE PSEUDO VIRTUAL LANES FOR FIBRE CHANNEL SYSTEMS - A method and switch element for assigning priority to pseudo virtual lanes (“PVL”) using a fibre channel switch element is provided. The method includes, assigning received R_RDYs based on a PVL distribution scheme; and determining traffic congestion on a PVL if there is no credit available to transfer frames from the PVL. A minimum bandwidth feature is enabled to avoid lower priority PVLs from getting no credit for transmitting frames; and distributing credit and R_RDYs based on frame age bits, wherein a lower priority PVL gets credit if a frame is waiting in the PVL for a longer duration compared to a higher priority PVL. The switch element includes, a PVL module having credit counters for plural PVLs; and a timer that monitors frame traffic for each PVL lane. If a PVL gets congested, then a state machine adjusts priority of R_RDY distribution scheme of other PVLs to transmit frames. | 2008-12-18 |
20080310307 | IP converged system and packet processing method therein - An IP converged system includes a VoIP ALG module and a policer module. The VoIP ALG module acquires dynamically changing RTP IP/port information of a packet by parsing a VoIP SIP message, and transmits the RTP IP/port information to the policer module. The policer module sets IP/port, which provides a real-time data service, by referring to the information from the VoIP ALG module, and discriminatively sets a packet processing condition for a non-real-time data service and a packet processing condition for the real-time data service. The VoIP ALG module and the policer module share RTP IP/port information, dynamically determined by the negotiation between VoIP gateways or VoIP terminals, in call setup/release, so that the policer can discriminately drop or mark VoIP packets by referring to the RTP IP/port information. | 2008-12-18 |
20080310308 | System and method for adaptive flow control - The system and method for adaptive flow control transmits pause off packets to network nodes after a calculated time based on switch resource usage thereby alleviating congestion is a network switching system. | 2008-12-18 |
20080310309 | SENDING CONTENT FROM MULTIPLE QUEUES TO CLIENTS - In an embodiment, a content server has multiple queues, each of which includes records. Each record in a queue represents a frame in a logical group of frames. Each of the queues transitions between a control state, an ingestion state, and a distribution state. During the control states, records are added to the queues. During the ingestion states, the frames are copied into memory at the content server. During the distribution states, the content server sends the logical groups to a client. Each of the control state, the ingestion state, and the distribution state has a time duration equal to the amount of time needed to play the logical group. | 2008-12-18 |
20080310310 | Algorithm for network Route Selection - A method for selecting a path in a physical network that selects nodes for the path based on the coordinates of the nodes in a representation of the subject network in space. From a working node M that is included in the selected path, the next node that is selected for the path is a node N such that (a) a link MN exists, and (b) the link MN forms an angle relative to a line that connects working node with the destination node that is smaller than the angle that any other link from node M forms with the line that connects working node with the destination node | 2008-12-18 |
20080310311 | Method and system for providing network and routing protocols for utility services - A method and system for providing a network and routing protocol for utility services are disclosed. In one embodiment, a computer-implemented method comprises discovering a utility network, wherein a utility device (for example, a constant powered meter) sends network discovery messages to find the utility network. Neighboring meters are discovered and the device listens for advertised routes for one or more networks from the neighbors. The device is then registered with one or more utility networks, receiving a unique address for each network registration. Also illustrated in this invention disclosure is how each device of a class of devices (for example, battery powered meter) finds and associates itself with another device (for example, constant powered meter). The constant powered meter also registers its associate battery powered meter with the utility networks. The constant powered meter registers itself with the access points and the upstream nodes in the path out of each network. Each upstream node can independently make forwarding decisions on both upstream and downstream packets i.e. choose the next hop according to the best information available to it. The constant powered meter can sense transient link problems, outage problems, and traffic characteristics. It uses the information to find the best route out of and within each network. Each network device thus maintains multi-egress, multi-ingress network routing options both for itself and the device(s) associated with it. | 2008-12-18 |
20080310312 | Method for Monitoring SIP Call-Flows by Tracking Message Transformation - Systems and methods are provided for monitoring session initiation communications without modifying the operational code of the session initiation protocol proxy servers through which the messages that constitute a given communication are routed. The inbound and outbound versions of session initiation protocol messages are identified at a plurality of proxy servers. The inbound and outbound message versions are correlated at each proxy server using user-defined correlation rules that test conditions of the message headers. The correlated inbound and outbound message versions are then examined for transformations, and these transformations are used to determine the actions taken by the appropriate proxy server on that message. These actions are used to check the proper operation of both the proxy server and the session initiation protocol communication. | 2008-12-18 |
20080310313 | PROTOCOL DATA UNIT RECOVERY - Information can transfer from a transmitter to a receiver; however, the transmission can consume valuable resources. Therefore, a number of times a transmission is attempted can be tracked and compared against a threshold value. If the transmission occurs too many times—based upon the comparison—then a reset can occur. Tracking can occur for a protocol data unit and/or a control protocol data unit to determine if a reset should occur. | 2008-12-18 |
20080310314 | Method for Detecting a Message Interface Fault in a Communication Device - In one aspect, a method for detecting the fault of a message interface in a communications device is provided, wherein the message interface comprises at least two layers which communicate with each other, a top layer accesses to the services of the lower layer and offers the services thereof to upper layers, for detecting a fault in the layers, at least one test application sends at least one test message for testing the information state of at least certain individual layers, thereby making it possible to control the information capabilities between the layers of the message interface. | 2008-12-18 |
20080310315 | Equalized trigger - A data acquisition apparatus and method are provided. The apparatus comprises a receiver for receiving an analog data signal, an equalizer for equalizing the received analog data signal. A trigger element is provided for generating a trigger signal in accordance with the equalized analog data signal. A memory element stores a digitized version of the received analog data signal digitized by an analog to digital converter in accordance with the generated trigger signal. | 2008-12-18 |
20080310316 | Surrogate Stream for Monitoring Realtime Media - In one embodiment, a separate surrogate monitor stream provides real-time media monitoring statistics for non-media savvy protocols. The surrogate monitor stream contains packet transmission parameters, such as sequence numbers and time stamps, for associated media packets in the non-savvy media stream. The surrogate monitor stream also contains checksums derived from the media packets. The checksums are used to correlate the packets in the surrogate monitor stream with the media packets in the media stream. The information in the surrogate monitor stream is then used in conjunction with the non-savvy media stream to provide real-time media monitoring without having to modify existing infrastructure. For example, head-end video servers do not have to add Real-time Transport Protocol (RTP) support or deal with protocol upgrades like RTP/UDP co-existence. | 2008-12-18 |
20080310317 | Information Acquisition - A method of acquiring network information from a network is disclosed. The network comprises an end terminal and a target terminal and installed on the end terminal is (a) a plurality of applications; and (b) mediation means arranged in operation to mediate between the plurality of applications and the target terminal. The method comprises: (i) receiving at the mediation means a query from one of the plurality of applications, the query requesting network information from a target terminal; (ii) operating the mediation means to: check if there is an existing connection to the target terminal; in the absence of an existing connection, establish a new connection between the mediation means and the target terminal; and acquire the requested network information over the new connection. | 2008-12-18 |
20080310318 | Apparatus and Method For Monitoring Base Station Signal in Communication System Having Multiple Antennas - In a signal monitoring apparatus of a base station of a communication system having multiple antennas, a transmitting/receiving unit transmits a plurality of transmit signals by using the multiple antennas or processes a plurality of receive signals received through the multiple antennas. A radio frequency calibration unit calibrates the transmit signals transmitted through the multiple antennas, and processes at least one target transmit signal among the plurality of transmit signals so as to monitor the at least one target transmit signal. A signal monitoring unit receives at least one first signal or at least one second signal, and transmits the at least one first signal or the at least one second signal to user equipment. The at least one first signal is a signal processed from at least one target receive signal among the plurality of receive signals, and the at least one second signal is a signal processed from the at least one target transmit signal by controlling the radio frequency calibration unit. | 2008-12-18 |
20080310319 | SERVER, NETWORK SYSTEM, AND NETWORK CONNECTION METHOD USED FOR THE SAME - A server includes a packet monitoring unit for monitoring a packet that is sent from a terminal without a function of automatically allocating an Internet Protocol (IP) address to a destination via an unknown network so as to detect the destined IP address of the packet; and a setting changing unit for setting the destined IP address detected by the packet monitoring unit to a self device. | 2008-12-18 |
20080310320 | Apparatus and method for parameter rollback in a self configurable broadband wireless communication system - An apparatus and method for rolling back operation parameters of a base station in a self-configurable broadband wireless communication system are provided, in which in a manager server, an optimizer for determining optimized operation parameters of the base station based on information which is needed to optimize and is received from the base station, an evaluator for calculating service level of the base station using the optimized operation parameters, and a controller for requesting to roll back the optimized operation parameters when the service level is greater than or equal to a first threshold value. | 2008-12-18 |
20080310321 | METHOD AND APPARATUS FOR TIME-ALIGNING TRANSMISSIONS FROM MULTIPLE BASE STATIONS IN A CDMA COMMUNICATION SYSTEM - Schemes to time-align transmissions from multiple base stations to a terminal. To achieve time-alignment, differences between the arrival times of transmissions from the base stations, as observed at the terminal, are determined and provided to the system and used to adjust the timing at the base stations such that terminal-specific radio frames arrive at the terminal within a particular time window. In one scheme, a time difference between two base stations is partitioned into a frame-level time difference and a chip-level time difference. Whenever requested to perform and report time difference measurements, the terminal measures the chip-level timing for each candidate base station relative to a reference base station. Additionally, the terminal also measures the frame-level timing and includes this information in the time difference measurement only if required. Otherwise, the terminal sets the frame-level part to a predetermined value (e.g., zero). | 2008-12-18 |
20080310322 | Methods and Arrangements for Estimating Uplink Coverage in Wireless Communication Networks with Dynamic Cell Coverage - The present invention relates to methods and arrangements in cellular communication networks exhibiting dynamic cell coverage, in particular, to estimate the uplink coverage in a network in operation. According to the method of the present invention a received rate is determined from at least one mobile terminal being in a communication session, by measuring the number of received transport blocks during a predetermined time interval. The received rate is compared with a predetermined expected rate, and if the received rate is below the expected rate poor coverage is identified. Since the coverage is potentially load dependent an estimate of the uplink coverage has been obtained. | 2008-12-18 |
20080310323 | Method and Apparatus for DNS Update Triggered IPv6 Neighbor Advertisement - In a 3GPP2 Converged Access Network (CAN), IPv6 stateless auto configuration can be used to configure an IPv6 address of an access terminal (AT) for Simple IPv6 operation. A domain name system (DNS) update is triggered by IPv6 Neighbor Advertisement addresses a need for a DNS update when the full IPv6 address (128 bits) has not yet been sent in IPv6 packets from the AT. Upon receipt of the full address in response to the IPv6 Neighbor Advertisement, provision is made for prompting this DNS update even when the requesting network entity (e.g., access gateway (AGW) or home agent (HA)) does not have security authentication with a responsible home DNS server by utilizing access to an authentication, authorization, and accounting (AAA) function, perhaps via a local visited AAA, to submit an Accounting Request (Start) message that prompts the home DNS server to perform the DNS update. | 2008-12-18 |
20080310324 | ABORTING A PACKETIZED WIRELESS COMMUNICATION - Systems and methods are provided for a signaling an ongoing communication of a data unit in a data packet is to be aborted. Upon a determination to abort an ongoing communication is made, a code-point in a data unit header is utilized to indicate the ongoing communication is to be aborted. A first class of code-point is a dedicated, predefined abort data unit field header. A second class of code-point is a combination of a set of existing, predefined data unit header fields, at least one data unit header field in the combination holds a value that is either invalid or legitimate yet unlikely to occur. Conveying code-point(s) to indicate termination of an ongoing communication of a data unit in a data packet in a regular communication mitigates transmission disruption and saves channel capacity. | 2008-12-18 |
20080310325 | METHOD FOR CONSTRUCTING VIRTUAL BACKBONE IN WIRELESS SENSOR NETWORK - Disclosed is a method for constructing a virtual backbone in a Wireless Sensor Network (WSN). The method including the steps of setting a ‘Dominator’ status for a gateway or a sink node within the WSN, setting a ‘CoveredByDominator’ status for each neighbor node positioned in the transmission range of a node for which the ‘Dominator’ status is set, and setting a ‘NULL’ status for each of the other nodes, transmitting a beacon frame by periods from each node to neighbor nodes thereof within the WSN, receiving, by each node in the ‘CoveredByDominator’ status, the beacon frame from neighbor nodes thereof in the ‘NULL’ status, computing a time duration of a defer timer, and enabling the defer timer to operate by the computed time duration; and changing, to the ‘Dominator’ status, a status of a node whose defer timer expires earliest among the nodes all having the ‘CoveredByDominator’ status. | 2008-12-18 |
20080310326 | NETWORK PHYSICAL CONNECTION INFERENCE FOR IP TUNNELS - The physical connection corresponding to IP tunnels in a network are found by tracing through the device configuration and routing tables at the routers in the network to determine the outbound interface associated with each tunnel endpoint, and then inferring a likely return interface associated with the opposite tunnel endpoint. Having determined the physical devices at the source and destination of each tunnel, the physical path between these source and destination devices is traced from the source toward the destination until the path is terminated at the destination device, or at an interface to an external network. If the path ends at an external network, the path is traced from the destination device toward the source device until a corresponding interface to the external network is reached. | 2008-12-18 |
20080310327 | Registry of modular services and a method for automatically selecting an appropriate service to provide particular logical guarantees - A system, method, and computer program product are provided for selecting a service to provide a service operation. | 2008-12-18 |
20080310328 | CLIENT-SIDE ECHO CANCELLATION FOR MULTI-PARTY AUDIO CONFERENCING - A “Client-Side Echo Canceller” provides a unique system and method for reducing Multipoint Control Unit (MCU) computational overhead in a multi-point audio conference. In general, the local audio input signal of each client is transmitted in real-time to the MCU. The MCU then combines the audio input signals of all clients to create a single composite signal that is transmitted back to all clients in real-time. Each client then locally processes the composite signal to remove each client's local contribution to the composite signal prior to local playback in order to eliminate a local echo of each client's local audio input. In various embodiments, local cancellation of the local audio input from the composite signal is performed on either a time domain or a transform domain representation of the composite signal. Further, since each client receives the same signal, MCU transmission bandwidth can be reduced via multicast transmissions. | 2008-12-18 |
20080310329 | Method and Apparartus for Mitigating Psp Interference Psp-Enabled Communication Systems - A method to be performed by a network system is proposed, for P2P communication to cancel interference, comprising steps of: determining the redundant code group information, according to the code group usage information of the cell in which two UEs to establish P2P connection camp and its adjacent cells; detecting the relative position between said two UEs and each of other active UEs in communication state in the cell where said two UEs are camping and its adjacent cells; if at least one UE of said two UEs causes radio interference to at least one of said active UEs according to the relative position, further determining whether said UE and said active UE are assigned in the same time slot; selecting a scrambling code from the redundant code group information and assigning it to said two UEs if said UE and said active are assigned in the same time slot, so that said two UEs can perform scrambling operation by using said scrambling code on P2P signals transferred between said two UEs. | 2008-12-18 |
20080310330 | STARTUP PROTOCOL FOR HIGH THROUGHPUT COMMUNICATIONS SYSTEMS - A startup protocol is provided for use in a communications system having a plurality of transceivers, one transceiver acting as a master and another transceiver acting as slave, each transceiver having a noise reduction system, a timing recovery system and at least one equalizer. The operation of the startup protocol is partitioned into three stages. During the first stage the timing recovery system and the equalizer of the slave are trained and the noise reduction system of the master is trained. During the second stage the timing recovery system of the master is trained in both frequency and phase, the equalizer of the master is trained and the noise reduction system of the slave is trained. During the third stage the noise reduction system of the master is retrained, the timing recovery system of the master is retrained in phase and the timing recovery system of the slave is retrained in both frequency and phase. The protocol then enters a fourth stage in which the master transceiver and the slave transceiver are ready to communicate with each other. | 2008-12-18 |
20080310331 | APPARATUS, AND ASSOCIATED METHOD, FOR CONFIGURING AN IMS SERVICE FOR USE BY A CIRCUIT-SWITCHED DEVICE - Apparatus, and an associated method, to facilitate performance of an IMS (IP Multimedia Subsystem) service to a circuit-switched-connected user equipment. The user equipment includes a USSD message generator that generates an initiation message that is sent to a network of a radio communication system. The message is routed through the network to an entity that decodes the USSD message to form an XCAP message. The XCAP message is routed to an associated service node that operates responsive to the XCAP message. | 2008-12-18 |
20080310332 | METHOD AND SYSTEM FOR UTILIZING A 60 GHZ PHY LAYER FOR HIGH SPEED DATA TRANSMISSION BETWEEN BLUETOOTH DEVICES - Wireless devices may utilize a Bluetooth stack to setup a data transmission session between the devices. The data transmission session may comprise a Bluetooth PHY and/or MAC/PHY layer that enables the wireless devices to perform discovery, pairing, and security setup operations. A secondary physical layer may be utilized to perform high speed data transmission. The secondary physical layer may comprise a 60 GHz PHY and/or MAC/PHY. The secondary physical layer may be integrated via the Bluetooth stack, and applications running on top of the Bluetooth stack may utilize the secondary physical layer transparently. A portion of the transmitted data may be multiplexed onto other secondary physical layers that may be available in the wireless devices. Alternatively, transmission of data may comprise switching among available secondary physical layers. The Bluetooth PHY and/or MAC/PHY layer may be utilized during data transmission to continually monitor and/or manage the data transmission. | 2008-12-18 |
20080310333 | SEMI-PERSISTENT RESOURCE ALLOCATION METHOD FOR UPLINK TRANSMISSION IN WIRELESS PACKET DATA SYSTEMS - A wireless telecommunications network supplies a semi-persistent resource that a wireless station can use for special purposes (such as a retransmission of packets for ARQ purposes or a control signal. The semi-persistent resource can be allocated by the system to other terminals if, e.g., a retransmission is not required. Since a retransmission is generally performed in response to a NACK received from a base station, the NACK may itself serve as a token that permits the wireless station to use the semi-persistent allocation. Thus, the technology includes, e.g., a method for resource allocation on a semi-persistent basis and efficient signaling for the usage of such allocation. | 2008-12-18 |
20080310334 | Communication system, server, control apparatus and communication apparatus - Disclosed herewith is a communication system, which can solve the following conventional problem that if packets exchanged between a terminal and an HA are encapsulated with use of the mobile IPv6 protocol, the PDSN cannot identify any IP flows in the mobile IPv6 tunnel. Consequently, there is no QoS usable appropriately to the services in the EV-D0 RAN. To solve such a problem, the PCRF notifies the HA of the filter information used to specify each IP flow and the flow label assigned to each IP flow. The HA then sets the flow label in the outer IPv6 header of the packet matching with the filter information and transfers the packet to the object unit. The PDSN then refers to the flow label set in the outer IPv6 header to identify the object IP flow in the mobile IPv6 tunnel. Consequently, a proper QoS can be usable for the services respectively in the EV-D0 RAN. | 2008-12-18 |
20080310335 | METHOD AND APPARATUS FOR ACCOUNTING IN A MOBILE DATA PACKET NETWORK - In a converged communication network, IP data packet services are provided by a core network to access terminals via radio access nodes (RAN). By positioning accounting report triggering closer to the usage, accuracy and comprehensive of accounting is achieved, which can also reduce overhead burdens on the core network. Additional responsibility is given to an access gateway (AGW) between an enhanced base station (eBS) of the RAN and the core network that can reduce the volume and increase the accuracy of accounting message traffic to an authentication, authorization and accounting (AAA) server of the core network. The AGW informs the eBS of accounting rules to be used in making air link records that are merged and formatted in accordance with an accounting protocol for sending to the AAA server, to address duration and volume based accounting needs, postpaid and prepaid accounting types, and user, service and flow based accounting categories. | 2008-12-18 |
20080310336 | Dynamic receiver filter adjustment across preamble and information payload - A method and apparatus is disclosed to dynamically select among two or more receiver filter bandwidths to more closely approximate a bandwidth of a corresponding signal field included in a received communications signal. A communications transmitter may transmit a transmitted communication signal in at least one formatted blocks of data or packets. Each one of the at least one formatted blocks of data or packets include at least one single stream signal field such as, but not limited to, a single stream preamble, a single stream signal field, and/or a single stream single stream information payload in accordance with the known single stream communications standard and/or at least one multiple stream signal field such as, but not limited to, a multiple stream preamble, a multiple stream signal field, and/or a multiple stream multiple stream information payload in accordance with the known multiple stream communications standard. The communications receiver may include one or more receiver filters to select among one or more receiver filter bandwidths to filter the at least one single stream signal field and/or the at least one multiple stream signal field. | 2008-12-18 |
20080310337 | Periodic heartbeat communication between devices and a control point - A method, apparatus and system of periodic heartbeat communication between devices and a control point is disclosed. In one embodiment, a method includes generating a periodic heartbeat signal using a counter of a system on chip embedded in a device, and communicating the heartbeat signal to a control point managing the device to trigger a communication between the device and the control point in order to allow the device to use a low power mode between heartbeat communications. In another embodiment, a method includes communicating a heartbeat signal of a device to a control point when the device is coupled to a network of the device and the control point managing the device, performing a key exchange between the device and the control point to authenticate the device, and configuring the device based on parameter data of the control point when key exchange is successful. | 2008-12-18 |
20080310338 | Configurable Acknowledgement Mode for a Hybrid Automatic Repeat Request Protocol - The present invention relates to a method for configuring an acknowledgement mode of an HARQ re-transmission protocol used for acknowledging the delivery of data packets of a service provided from a transmitting entity to a receiving entity in a wireless communication system comprising a controlling entity in a radio access network. To improve the overall transmission efficiency while providing transmission robustness, the controlling entity configures, based on at least one of a QoS attribute or physical layer parameter, one of a first and second acknowledgement mode. An acknowledgement message is transmitted according to the configured acknowledgement mode, wherein, in case the data packet has not been decoded successfully by the receiving entity, the acknowledgement message in the first acknowledgement mode indicates one of a plurality of decoding quality levels of the data packet obtained when decoding the data packet at the receiving entity, and the acknowledgement message in the second acknowledgement mode indicates a decoding failure of the data packet. | 2008-12-18 |
20080310339 | Radio Communication System, Radio Communication Apparatus and Radio Communication Method - Provided is a radio communication method including: notifying a reception-side radio communication apparatus of omitted-source-address information indicating a first source address permanently assigned to a source device of a first data frame to be transmitted to the reception-side radio communication apparatus; determining whether or not the first source address is identical to a second source address permanently assigned to a source device of a second data frame to be transmitted to the reception-side radio communication apparatus; and transmitting the second data frame to the reception-side radio communication apparatus after omitting transmission of the second source address and also adding, to the second data frame, an omission indication indicating that the second source address is omitted, if the first source address is determined to be identical to the second source address. | 2008-12-18 |
20080310340 | Communication System, Communication Method, Communication Terminal Device, Control Method Thereof, and Program - The present invention proposes a highly reliable communication system and communication method, a communication terminal device used for the communication system, a control method thereof, and a program installed on the communication terminal device. In communication system and communication method, the communication terminal device used for the communication system, the control method thereof, and the program installed on the communication terminal device, a first communication terminal originates a first message. In response to the first message, a third communication terminal originates a second message. Based on these messages, the first through third communication terminals create routes to the first or third communication terminal. The first communication terminal transmits a route request composed of a request for a route used for communication with the third communication terminal. The second and third communication terminals create multiple routes to the first or third communication terminal. A communication route is established between the first and third communication terminals using a route that belongs to the created routes and satisfies the route request transmitted from the first communication terminal. | 2008-12-18 |
20080310341 | Wireless Transmission System - In the present invention, a wireless transmission system includes a plurality of mobile stations in a cell area, and a base station. The base station divides each of an uplink frame and a downlink frame into a plurality of blocks, assigns a specific one of the plurality of blocks to each of the plurality of the mobile stations, assigns a specific frequency channel to the mobile station, and notifies the specific block and the specific frequency channel to the mobile station. The length of each of the plurality of blocks is optional, and a sum of the lengths of the plurality of blocks is equal to the length of the frame. | 2008-12-18 |
20080310342 | Addressing Messages in a Two-Tier Network - In one embodiment, a method includes accessing a frame including a baseline header including a recipient address (RA) field, a transmitter address (TA) field, a destination address (DA) field, and a source address (SA) field. The method includes inserting into the frame a mesh header including a mesh destination address (MDA) field and a mesh source address (MSA) field. The MSA field specifies an address of a first edge node of the wireless mesh network, and the MDA field specifies an address of a second edge node of the wireless mesh network. The first edge node is a first transmitter of the frame with the baseline and mesh headers in the wireless mesh network, and the second edge node is a last recipient of the frame with the baseline and mesh headers in the wireless mesh network. The RA, TA, DA, and SA fields precede the MDA and MSA fields in the frame after insertion of the mesh header into the frame. | 2008-12-18 |
20080310343 | Methods of jointly assigning resources in a multi-carrier, multi-hop wireless communication system - Methods for jointly determining tones, power, scheduling and routing of links in a multi-carrier, multi-hop network to achieve certain desired throughput objectives between source and destination nodes. The methods effectively enhance or optimize throughput received by each destination router under node traffic constraints such as power, scheduling and flow constraints that apply to each link between each of a plurality of nodes within the mesh network. | 2008-12-18 |
20080310344 | TUNNEL OVERHEAD REDUCTION - Reduction of overhead normally caused by the addition of a second IP header in case of tunneling between a home agent and a mobile node located in a foreign network is achieved by replacing an encapsulated first IP header by a tunnel identifier. The home agent and the mobile node agree on a tunnel identifier value at the time of binding update and acknowledgement. The tunnel identifier may be used independently at the home agent and at the mobile node to reconstruct the first IP header, which identifies a correspondent node. Because the encapsulated first IP header is not terminated at either of the home agent or mobile node, overhead reduction is not impacted by eventual transmission error or loss between these two nodes. | 2008-12-18 |
20080310345 | Method of Generating Lower Layer Data Block in Wireless Mobile Communication System - A method of generating a data block including control information in a specific layer of a mobile communication apparatus having a hierarchical structure constructed with a plurality of layers is disclosed. The present invention includes the steps of inserting a control data block including control information into a first region of a lower layer data block if the lower layer has the control information to be transmitted to a receiving side and inserting at least one portion of the data block of an upper layer into a second region of the lower layer data block, wherein the first region is allocated to the control data block before the second region is allocated to the at least one portion of the upper layer data block. | 2008-12-18 |
20080310346 | Communication protocol for a wireless mesh architecture - A wireless mesh communication protocol that dynamically assigns communication time-slots and frequencies to mesh nodes. A first node is established as a PC that sequentially polls other nodes. A second node responds at a predetermined time with information that includes database records, and then a third node responds similarly. The second node is then established as the PC and the first node is polled during dynamically allocated time-slots and on a frequency that depend on the second node's database records. The third node is then established as a PC and acts similarly. In both cases the first node responds by sending information and data records. The first node is then re-established as the PC. The first node then polls the second and third nodes at times and frequencies that depend on the first node's database records. | 2008-12-18 |
20080310347 | Mobile communications system PDIF and method for peer detection of mobile terminal - With a system having no paging function, dead peer detection control and cutoff of a session are implemented as is the case with a system having a paging function. There is provided a method for dead peer detection of a mobile terminal, to be executed in a mobile communications system including a mobile terminal connected to plural wireless systems, a first connection device terminating a first wireless system with access points managing a connection status between the mobile terminal and a wireless link, and a second connection device terminating a second wireless system with access points not managing a connection status between the mobile terminal and a wireless link, said method comprising the steps of the second connection device acquiring the connection status of the mobile terminal in the first wireless system from the first connection device, and the second connection device changing a dead peer detection control process on the basis of the connection status of the mobile terminal, as acquired. | 2008-12-18 |
20080310348 | Wireless Systems and Methods Including Cooperative Communication Medium Access Control - A complementary medium access control (CMAC) method and apparatus are described. | 2008-12-18 |
20080310349 | MULTIPLE BINDINGS HAVING INDEPENDENT FORWARD AND REVERSE LINK BINDINGS FOR MOBILE INTERNET PROTOCOLS - Methods, apparatus, systems and computer program products are defined that provide multiple bindings in a Mobile Internet Protocol (MIP) network environment. The multiple bindings that are established are independent of one another, such that a forward link binding is decoupled from, or otherwise does not affect, a reverse link binding and vice versa. Multiple reverse link-only bindings may be established within an active route set for an access terminal. Additionally a single primary binding may be established that provides a forward link binding and reverse link binding. At any point in time, the access terminal may maintain only one primary binding. | 2008-12-18 |
20080310350 | WIRELESS MESH NETWORK - A wireless mesh network where a portion of the nodes have reduced receive sensitivity. The negative effects of the density of the wireless mesh network, such as interference, are reduced when fewer nodes receive messages to rebroadcast. In an alternative embodiment, some of the nodes of the mesh network are configured to not rebroadcast even if they receive a message. A method for configuring a dense mesh network is also provided. As many nodes as possible are discovered and registered in the network. Node characteristics of those nodes are adjusted to reduce or eliminate the negative effects of the dense mesh network so that additional nodes may be discovered and registered. | 2008-12-18 |
20080310351 | Preamble Formats for MIMO Wireless Communications - A method for generating a preamble of a frame for a multiple input multiple output (MIMO) wireless communication begins by, for each transmit antenna of the MIMO wireless communication, generating a carrier detect field, wherein, from transmit antenna to transmit antenna, the carrier detect field is cyclically shifted. The method continues by, for a first grouping of the transmit antennas of the MIMO wireless communication: generating a first guard interval following the carrier detect field; and generating at least one channel sounding field, wherein, from transmit antenna to transmit antenna in the first grouping, the at least one channel sounding field is cyclically shifted, and wherein the at least one channel sounding field follows the first guard interval. The method continues by, when the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas: generating at least one other channel sounding field, wherein, from transmit antenna to transmit antenna in the another grouping, the at least one other channel sounding field is cyclically shifted, and wherein the at least one other channel sounding field follows the at least one channel sounding field; and generating the first guard interval prior to the at least one other channel sounding field. | 2008-12-18 |
20080310352 | METHOD AND APPARATUS FOR REUSING PACKET DATA CONTROL ASSIGNMENT BITS FOR RESOURCE ALLOCATION INDICATIONS - The PDCAB packet ( | 2008-12-18 |
20080310353 | Method and Apparatus to Facilitate Use of Default Transmitter-Receiver Configurations - A wireless communications system base station ( | 2008-12-18 |