46th week of 2008 patent applcation highlights part 28 |
Patent application number | Title | Published |
20080279043 | Method of seismic processing of the type comprising depth migration before addition - A seismic processing method of the migration type, comprising the steps of:
| 2008-11-13 |
20080279044 | Ultrasonic Ranging in the Near Zone - An ultrasonic ranging device for ultrasonic ranging in the near zone. The device may include a transducer for generating an ultrasonic signal and for detecting an echo signal. The device may also include a processor for calculating the distance to a target object based on a first time period defined by a first set of ultrasonic signals when the target object is located outside the near zone and a second time period defined by a second set of ultrasonic signals when the target object is located within the near zone. The processor may also adjust the amplitude of the generated ultrasonic signal until the first set of ultrasonic signals is detected at the transducer. | 2008-11-13 |
20080279045 | APPARATUS, SYSTEMS AND METHODS FOR DETERMINING POSITION OF MARINE SEISMIC ACOUSTIC RECEIVERS - Apparatus, systems and methods for calculating position of marine seismic acoustic receivers, and for estimating sound velocity profile of a fluid, are disclosed. One position calculation system includes a vessel, two or more vessel hull-mounted transmitters, a plurality of acoustic receivers on a cable being deployed from the vessel into the fluid, and a calculation unit. The calculation unit may be adapted to calculate position of the receivers, and may be used in calculating the sound velocity profile in the fluid and correcting raw seismic data. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b). | 2008-11-13 |
20080279046 | ACOUSTIC LOCATION OF GUNSHOTS USING COMBINED ANGLE OF ARRIVAL AND TIME OF ARRIVAL MEASUREMENTS - A gunshot location system computes candidate gunshot locations [ | 2008-11-13 |
20080279047 | SYSTEM AND METHOD FOR UNDERWATER WIRELESS COMMUNICATION - An underwater wireless communication system and method includes a sensor node for transforming measured underwater data into ultrasound signals, and transmitting the transformed ultrasound signals and receiving other ultrasound signals. | 2008-11-13 |
20080279048 | Sample analyzing apparatus - A sample analyzing apparatus is provided with a memory for storing a schedule of maintenance, a display, and a controller for displaying on the display a screen of calendar format, wherein the screen includes a date display area for displaying a date and a maintenance item display area for displaying a maintenance item scheduled on the date. | 2008-11-13 |
20080279049 | Drive Mechanism for a Timepiece Calendar Date Display - A calendar date display comprises a ten-day indicator ( | 2008-11-13 |
20080279050 | Timepiece with alert timer - A timepiece includes a time provider providing a current time and an alert timer. The alert timer includes a time setter setting a time interval at the current time as a starting time, a time processor counting the time interval starting from the starting time, and a signal generator automatically and timely generating an alert signal in a punctual time manner when said time processor is finished counting the time interval in responsive to the starting time. | 2008-11-13 |
20080279051 | Portable article with alert timer - A portable article includes a portable item having a primary function and adapted for being conveniently carried by a user, and an alert timer, which is built-in with the portable item, including a time setter setting a time interval at a starting time, a time processor counting the time interval starting from the starting time, and a signal generator automatically and timely generating an alert signal in a punctual time manner when said time processor is finished counting the time interval in responsive to the starting time. | 2008-11-13 |
20080279052 | Watch Escapement - The invention concerns an escapement for a mechanical watch comprising: an escapement wheel ( | 2008-11-13 |
20080279053 | Timepiece with Two Rotating Bezels - The timepiece includes a case ( | 2008-11-13 |
20080279054 | Device for digitalizing, recording and playing audio signals of a record - A device includes a turntable, a pickup, and a digital audio signal processor with a built-in compression/uncompression chip; in use, as soon as the pickup reads analogous audio signals of a vinyl record, the analogous audio signals will be converted into digital ones by means of an analog-to-digital converter, which are next sent to the digital audio signal processor, and compressed by means of the built-in chip of the digital audio signal processor, and stored in a large-capacity storage medium; afterwards, the digital audio signals are uncompressed by means of the chip, and converted into analogous ones by means of a digital-to-analog converter, which are next sent out through a low-pass wave filter. | 2008-11-13 |
20080279055 | Communication Optical Write Strategies Via Central Databases - The present invention relates to an optical drive ( | 2008-11-13 |
20080279056 | Calibration Method for Determining Servo Parameters for Accessing an Optical Disc - Calibration methods are provided for determining servo parameters to enhance an optical drive in reading and writing a blank optical disc. First, test data is written on the blank disc with various writing parameters. Second, the written test data is read from the optical disc with various reading parameters. A plurality of quality measures are obtained, each corresponds to a specific combination of the writing parameter and the reading parameter. An optimal writing parameter and an optimal reading parameter are determined by comparing the quality measures with respect to both the reading and writing parameters respectively. | 2008-11-13 |
20080279057 | ASSEMBLING METHOD FOR OPTICAL SYSTEM OF OPTICAL PICK-UP - There is provided an assembling method for expanding a maximum admissible astigmatism of objective lens which includes defining a maximum admissible astigmatism for the entire optical system, installing the collimator lens on the optical system to cause a predetermined amount of astigmatism lying within a range of up to the maximum admissible astigmatism by tilting the collimator lens from a condition where a point source of the semiconductor laser lies on an optical axis of the collimator lens, and installing the objective lens on the body case of the optical system to bring a total amount of astigmatism of the entire optical system to a level smaller than or equal to the maximum admissible astigmatism for the entire optical system by rotating the objective lens from a condition where the point source of the semiconductor laser and the center of the collimator lens lie on the optical axis of the objective lens. | 2008-11-13 |
20080279058 | Information Recording/Reproducing Device, Information Recording/Reproducing Method, and Information Recording/Reproducing Program - It is possible to obtain preferable recording characteristic and reproduction characteristic by considering irregularities of unique characteristics of an LD or the like mounted on an information recording and reproduction apparatus as well as characteristics of an optical disc used. In the information recording and reproduction apparatus, a light source such as a laser diode is driven by a laser drive signal so that a laser beam for recording or reproduction is emitted from the light source. Moreover, the laser drive signal is superimposed by a high-frequency signal of a predetermined frequency so as to eliminate effect of the return light from the optical disc. The information recording and reproduction apparatus superimposes the high-frequency signal by using a high-frequency signal level during recording which is different from a high-frequency signal level during reproduction. | 2008-11-13 |
20080279059 | Method and System For Correction of Errors - A method and system for removing periodic disturbances pertaining to turntable and spindle motor errors during recording of a blank optical information carrier. The periodic disturbances are determined in advance and removed only during recording by a repetitive control/learning feedforward control circuit ( | 2008-11-13 |
20080279060 | OBJECTIVE LENS DEVICE, OPTICAL PICKUP DEVICE, OPTICAL-DISC DRIVING DEVICE AND DRIVING METHOD OF OBJECTIVE LENS - An objective lens device includes: a first objective lens having a first numerical aperture, which can condense light into a disc-shaped first optical recording medium including a first cover layer of first thickness; a second objective lens having a second numerical aperture which is smaller than the first numerical aperture, which can condense light into a disc-shaped second optical recording medium including a second cover layer of second thickness which is thicker than the first thickness; a third objective lens having a third numerical aperture which is smaller than the second numerical aperture, which can condense light into a disc-shaped third optical recording medium including a third cover layer of third thickness which is thicker than the second thickness; and a lens holder configured to integrally hold the first, second, and third objective lenses. | 2008-11-13 |
20080279061 | Method for Recording and Reproducing a Hologram and Apparatus Therefor - A hologram recording method is a method of recording a hologram, on a hologram recording apparatus that records information by forming a diffraction grating through oppositely irradiating the signal beam and the reference beam to the hologram record carrier. The hologram recording method includes a step of focusing the reference beam at a first numerical aperture from a first effective diameter by means of the reference-beam objective lens, a step of separating the reference beam in a part on the optical axis and a neighborhood thereof to thereby produce from the reference beam a recording reference beam to passes through the hologram record carrier at a second numerical aperture smaller than the first numerical aperture from a second effective diameter smaller than the first effective diameter by means of the reference-beam objective lens of the reference-beam optical system, and allowing the recording reference beam to exit coaxially to the reference beam, and a step of not allowing only the recording reference beam to exit toward the hologram record carrier by means of the signal-beam optical system. | 2008-11-13 |
20080279062 | ELECTRIC FIELD READ/WRITE DEVICE AND METHOD OF DRIVING THE SAME - Provided are an electric field read/write device and a method of driving an electric field read/write device. The method including an electric field read/write head comprising a resistance region disposed between a source region and a drain region and a writing electrode disposed on the resistance region, wherein the method includes: applying a controlling voltage to the writing electrode, wherein the controlling voltage is smaller than a threshold voltage which causes polarization of a recording medium, and reproducing data recorded in the recording medium according to change of an amount of a current flowing through the resistance region according to a polarization direction of electric domains of the recording medium. | 2008-11-13 |
20080279063 | Drive Device - A drive apparatus of the present invention includes: a recording/reproduction section, a drive control section and a memory circuit. The drive control section performs a process including: receiving a recording instruction specifying at least data to be recorded; storing the data to be recorded in the memory circuit; defining data from a start location of the data stored in the memory circuit to a location corresponding to a next writable address as a first data portion; defining data from the location corresponding to the next writable address to an end location of the data stored in the memory circuit as a second data portion; and controlling the recording/reproduction section to record the second data portion before recording the first data portion. | 2008-11-13 |
20080279064 | Optical Data Storage System and Method of Optical Recording and/or Reading - An optical data storage system for recording and/or reading, using a radiation beam having a wavelength X is described. The radiation beam is focused onto a data storage layer of an optical data storage medium. The medium has a cover layer that is transparent to the focused radiation beam. The cover layer has a thickness h smaller than 5 μm. A cover layer with thickness variation of substantially less than the focal depth, i.e. 50 nm, eliminates the need of dynamic focus control of the objective which is otherwise required in addition to the gap servo. Further a method of optical recording is described using such an optical data storage system by which a static focus control and spherical aberration correction to accommodate medium-to-medium variance is achieved. The static focus control can be realised by optimising the modulation depth of a known signal, e.g. from a lead-in track. | 2008-11-13 |
20080279065 | INFORMATION STORAGE MEDIUM HAVING MULTIPLE STORAGE LAYERS WITH OPTIMAL POWER CONTROL (OPC) AREAS AND BUFFER AREAS - An information storage medium and an apparatus for recording and/or reproducing the information storage medium are provided to control optimal recording power without an influence of an optimal power control (OPC) area in a layer upon an OPC area in a different layer. The information storage medium includes at least one information storage layer including an optimal power control area for obtaining an optical recording condition. OPC areas in adjacent information storage layers are disposed within different radiuses of the information storage medium. Accordingly, even when the information storage medium is made eccentric or has a manufacturing error, a recording property of the information storage medium is prevented from being degraded due to an influence of an OPC area in an information storage layer upon an OPC area in an adjacent information storage layer. | 2008-11-13 |
20080279066 | METHOD FOR EVALUATING SIGNAL IN OPTICAL RECORDING AND READING AND METHOD FOR OPTICAL RECORDING AND READING - A signal quality evaluation method is provided that can objectively evaluate signal quality regardless of a PRML detection method used. The signal quality evaluation method is used when recording and reading is performed by irradiating a medium with a laser beam having a wavelength of λ through an objective lens having a numerical aperture of NA. In the signal quality evaluation method, information of the difference between an ideal signal recoded in the medium and a real signal obtained by irradiating the medium with the laser beam is statistically analyzed for each signal level of the ideal signal. The evaluation of the quality of the real signal is made using the statistics obtained by the statistical analysis. | 2008-11-13 |
20080279067 | Optical Record Carrier Comprising An Indiction Area for Indicating Whether A Recordable Area Is Fully Recorded, And Devices For Use With Such Record Carrier - The inventions relates to an optical record carrier ( | 2008-11-13 |
20080279068 | Method of inspecting disc information - A method of inspecting disc information stored on an optical disc, for applying in an optical drive of a computer system. The method of inspecting disc information comprises a. outputting a standard command, for reading the disc structure of the disc; b. determining whether the reading was successful, if not, step c is performed; if yes, step d is performed; c. outputting a force read command, for reading the disc structure; d. receiving the disc structure; and e. outputting the corresponding disc information according to the disc structure. The invention can inspect various disc information of the optical disc, and the user database can be manually updated and expanded according to a user's will, thereby increasing the convenience of inspecting optical discs. | 2008-11-13 |
20080279069 | Optical Disk Apparatus With Approximate Focus Control of Laser Beam - An optical disk apparatus is constructed for writing or reading information by irradiating a laser beam onto an optical disk while rotating the optical disk under a focus control of the laser beam relative to the rotated optical disk. In the optical disk apparatus, an irradiating section is operated to irradiate a laser beam onto the optical disk. A determining section determines a process pattern of the focus control by operating the irradiating section to irradiate the laser beam onto a predetermined area of the optical disk and by monitoring the laser beam reflected back from the predetermined area. A focusing section performs the focus control to regulate a spot diameter of the laser beam based on the determined process pattern during either of the writing or reading of information. | 2008-11-13 |
20080279070 | Optical Data Storage System and Method of Optical Recording and/or Reading - An optical data storage system for recording and/or reading, using a radiation beam, having a wavelength λ, focused onto a data storage layer of an optical data storage medium is described. The system comprises the medium having a cover layer that is transparent to the focused radiation beam, an optical head, including an objective having a numerical aperture NA, said objective including a solid immersion lens that is adapted for being present at a free working distance of smaller than λ/10 from an outermost surface of said medium. The optical head comprises a first adjustable optical element corresponding to the solid immersion lens, means for axially moving the first optical element and dynamically keeping constant the distance between cover layer and solid immersion tens, a second adjustable optical element, means for dynamically adjusting the second optical element for changing the focal position of the focal point of the focused radiation beam relative to an exit surface of the solid immersion lens. This achieves reliable read-out and writing during cover layer thickness variations. Further a method is described for controlling such a system. | 2008-11-13 |
20080279071 | APPARATUS AND METHOD FOR DETECTING DEFECT OF OPTICAL DISC - A method for detecting a defect of an optical disc includes steps of: confirming an optical pickup head being accessing data in a track on state; determining a defective region of the optical disc according to a peak-to peak value of a wobble signal; and, maintaining the optical pickup head being unchanged when the defective region is detected. | 2008-11-13 |
20080279072 | RECORDING MEDIUM, RECORDING APPARTUS, REPRODUCTION APPARATUS, RECORDING METHOD AND REPRODUCTION METHOD - The present invention allows the usability of a write-once recording medium to be enhanced. The write-once recording medium is provided with an ordinary recording/reproduction area, an alternate area, a first alternate-address management information area (DMA) and a second alternate-address management information area (TDMA). In addition, written/unwritten state indication information (a space bitmap) is also recorded. The second alternate-address management information area is an area allowing alternate-address management information recorded therein to be renewed by adding alternate-address management information thereto. In addition, the written/unwritten state indication information indicates whether or not data has been recorded in each data unit (cluster) on the recording medium. Thus, it is possible to correctly execute management of defects and properly implement renewal of data in the write-once recording medium. | 2008-11-13 |
20080279073 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD AND INFORMATION RECORDING/REPRODUCTION SYSTEM - An information recording medium including a plurality of sectors of the present invention includes: a first spare area including a spare sector for replacing a defective sector among the plurality of sectors; a defect management information area for managing the replacement of the defective sector by the spare sector; and a volume space in which user data can be recorded. The volume space is configured so that a second spare area including a spare sector for replacing a defective sector among the plurality of sectors can be additionally allocated. Location information indicating a location of the second spare area is recorded in the defect management information area. | 2008-11-13 |
20080279074 | RECORD CARRIER, DEVICE AND METHOD FOR QUALITATIVE AND RECORD CARRIER INDEPENDENT HIGH SPEED DATA RECORDING - A record carrier | 2008-11-13 |
20080279075 | DEVICE, METHOD FOR PROCESSING RF SIGNAL, AND OPTICAL DISK DRIVE UTILIZING THE SAME - A device for processing a radio frequency (RF) signal of an optical disk drive includes a high-pass (HP) filter, an RF variable gain amplifier (VGA), an RF analog-digital converter (ADC), and a digital module. The HP filter filters the RF signal and is capable of selectively utilizing one of a first cut-off frequency and a second cut-off frequency. The RF VGA amplifies the filtered RF signal. The RF ADC converts the amplified RF signal into a digital code. The digital module is capable of executing a first function and a second function with the digital code. The HP filter utilizes the first cut-off frequency when the digital module desires to execute the first function, and the HP filter utilizes the second cut-off frequency when the digital module desires to execute the second function. | 2008-11-13 |
20080279076 | Method and system for playing audio DVD, and method of recording same - A method of recording a pulse code modulation (PCM) audio on a digital versatile disc (DVD), comprising: inserting the DVD into the optical disc drive; utilizing the laser beam to write a PCM audio data to an audio contents area on the DVD; and writing a PCM audio data to an audio contents area on the DVD utilizing the laser beam, wherein the audio contents area is a fragment or a zone on the DVD, and wherein the DVD is either a DVD−R/−RW or a DVD+R/+RW corresponding to the audio contents area being the fragment or the zone, respectively The invention allows existing PCM audio data stored on a CD to be recorded on a DVD, and provides the playback of the recorded PCM audio data on the DVD. | 2008-11-13 |
20080279077 | Apparatus for and a method of enabling copying a copy-protected recording medium - Apparatus and methods are described to inhibit automatic installation of software by an installer carried on a recording medium so as to enable copying of content data from the recording medium. When the recording medium is inserted into a reader, an inhibitor inhibits an installer carried upon the recording medium from installing a copy protector by mimicking prior installation of the copy protector. | 2008-11-13 |
20080279078 | Split Disc Optical Storage Medium and Device - Optical data storage medium comprising a first disc ( | 2008-11-13 |
20080279079 | Optical Recording Medium - The main object of the present invention is to provide an optical recording medium with no need to use a control subject substance of the PRTR law, capable of using for an optical recording device with a blue laser, and giving consideration to the environmental aspect. | 2008-11-13 |
20080279080 | Optical storage medium and method of producing optical storage medium - An optical storage medium has a substrate and a cover layer that allows light to pass therethrough in recording or reproduction. Provided between the substrate and the cover layer are at least a reflective film, a first dielectric film, a recording film, and a second dielectric film formed in this order from the substrate side. Provided further between the second dielectric film and the cover layer is a damp-proof film that is at least partially an amorphous film and contains at least an indium oxide. | 2008-11-13 |
20080279081 | Optical Device for Recording and Reproducing - An optical device compatible with at least three different types of information carrier. It comprises a main optical branch comprising detecting means ( | 2008-11-13 |
20080279082 | OPTICAL PICKUP, RECORDING/REPRODUCING APPARATUS AND RECORDING/REPRODUCING METHOD - A recording medium, a recording/reproducing apparatus, and a recording/reproducing method are disclosed. The apparatus uses the number of record layers contained in a recording medium and a multi-wavelength light source including a plurality of optical signals having different wavelengths, and irradiates an optical signal emitted from a light source on each recording medium according to wavelengths of the light beams. As a result, the apparatus can effectively gain access to the recording medium including a plurality of record layers, such that it can simultaneously record/reproduce data in/from the recording medium. | 2008-11-13 |
20080279083 | OBJECTIVE LENS DESIGN METHOD, LENS, AND OPTICAL SYSTEM, OPTICAL HEAD, AND OPTICAL DISC APPARATUS USING THE SAME - When the DVD provided with the DVD substrate | 2008-11-13 |
20080279084 | Image Reader - An LPF performs low-pass filtering for a light reception signal responsive to return light received by an optical pickup. A comparator makes a comparison between the level of the signal output from the LPF and a predetermined threshold value and outputs a high or low pulse signal MIR. A system control section determines the pulse signal MIR for each predetermined dot region. If the pulse signal MIR output from the comparator is high, the system control section writes “1” into buffer memory; if the pulse signal MIR is low, the system control section writes “0” into the buffer memory. The pixel string data recorded in the buffer memory is transferred to a host and an image responsive to pixel string data is displayed on a display. | 2008-11-13 |
20080279085 | Optical Disc, Optical Disc Driving Apparatus, Optical Disc Driving Method, Data Processing Apparatus, and Optical Disc Recording/Reproducing Apparatus - By avoiding the problem that in a hybrid optical disc with a standard-density recording area and a high-density recording area, an optical pickup designed to be suitable for the standard-density recording area cannot operate as desired in the high-density recording area and may cause a malfunction, damage to the disc drive or optical disc is prevented and optimal control is enabled. Access operation identification information such as reproducing identification information | 2008-11-13 |
20080279086 | Record Carrier Comprising a Rom Mark and a Playback Device For Retrieving the Rom Mark - In order to distinguish a duplicated record carrier from an original record carrier a pattern is included in a ROM type record carrier that is oriented perpendicular to the reading direction. During illegal duplication the spatial relationship is disturb which can be easily detected. The patterns can be read out simultaneously by the same single read-out spot by including both patterns within the diameter of the optical spot thus guaranteeing that the read-out patterns are actually still spatially close together. Special patterns can be used that allow an easy detection of disturbances caused by the illegal duplication. | 2008-11-13 |
20080279087 | Method for Multi-Level Recording and Reproduction of Information and Apparatus Therefor - A method for recording and reproducing information at multiple levels comprises steps of recording an information-coding pit at one of multiple levels in each of recording domains placed successively on a track of an optical information recording medium by utilizing combination of a width in a track direction of an information-coding pit and a position in the track direction of the information-coding pit, detecting reproduced signals at two or more positions in the recording domain, and reproducing the information according to judgment of the width of the information pit by comparison of the reproduced signals with a predetermined threshold width value and judgment of the shift direction and/or shift degree by comparison with levels of the plural reproduced signals. | 2008-11-13 |
20080279088 | Record Carrier and Method of Recording an Image - A record carrier ( | 2008-11-13 |
20080279089 | Multiplexing separately modulated channels - A method of data transmission which includes providing a plurality of data streams, having different content, modulating the different data streams by respective modulators, multiplexing the modulated data streams into a single data stream alternately in time, such that the resultant stream includes at any specific time signals from fewer than all the data streams and transmitting the multiplexed single data stream onto a transmission channel. | 2008-11-13 |
20080279090 | DRM receiver with analog and digital separation filter and demodulation method - A Digital Radio Mondiale (DRM) receiver and demodulation method includes an analog and digital separation filter for filtering and separating a DRM-encoded signal and a non DRM-encoded signal from a composite RF signal received at the receiver. The DRM receiver includes a programmable downsampler and a programmable N-point Fast Fourier Transform (FFT) to recover and demodulate the OFDM symbols in a received DRM-encoded RF signal. The received signal is digitally sampled at a rate operably integer downsampled to achieve a number N samples in the useful portion of the OFDM symbol for input to an N-point FFT, where N equal to a power of two. The downsampling rate and size (N-points) of the FFT depend on the DRM encoding and transmission parameters, notably the robustness mode and spectrum occupancy. The structure and operation of the receiver in this manner simplifies the design and reduces the required filter order of the analog and digital separation filter. | 2008-11-13 |
20080279091 | Fourier-transform based linear equalization for MIMO CDMA downlink - In the reception of a downlink MIMO CDMA signal, the receiving unit performs a simplified process of linear equalization that eliminates the need for inverting the correlation matrix. The correlation matrix is approximated to a good degree by a circulation matrix that is diagonalized by FFT operations, thus substituting two FFTs and one IFFT having a complexity of | 2008-11-13 |
20080279092 | Channel control based on error correction values - A computing device configured for wireless communication may effectively control adaptation to channel conditions. The device may be configured to identify and classify conditions impacting performance of a channel so that appropriate adaptations may be made. Interference may be detected by correlating received signal strength and packet errors. High received signal strength correlated to a high packet error rate may signify presence of a source of interference. Once a source of interference is detected, other criteria may be used to determine the nature of the interference so that an adaptation that is minimally disruptive of applications can be selected. Additionally, channel degradation may be predicted by monitoring trends in error rates, including Forward Error Correction rates, and adaptation may be used before packet error rates exceed an unacceptable level. | 2008-11-13 |
20080279093 | Interference detection - A computing device configured for wireless communication may effectively control adaptation to channel conditions. The device may be configured to identify and classify conditions impacting performance of a channel so that appropriate adaptations may be made. Interference may be detected by correlating received signal strength and packet errors. High received signal strength correlated to a high packet error rate may signify presence of a source of interference. Once a source of interference is detected, other criteria may be used to determine the nature of the interference so that an adaptation that is minimally disruptive of applications can be selected. Additionally, channel degradation may be predicted by monitoring trends in error rates, including Forward Error Correction rates, and adaptation may be used before packet error rates exceed an unacceptable level. | 2008-11-13 |
20080279094 | Switching System And Method For Improving Switching Bandwidth - A switching system compatible with ATCA/ATCA 300 architecture and a method for improving switching bandwidth, including: a backplane, a plurality of node boards and at least two hub boards; the node boards are connected with the hub nodes through the backplane; each node board is connected with the at least two hub boards; different data is transmitted on at least two data links between the node boards and the at least two hub boards, and the at least two hub boards cooperate with each other to implement a data switching between the node boards. | 2008-11-13 |
20080279095 | REDUNDANT ROUTER AND RELATED METHODS - A router for routing data redundantly relative to a network. The router includes a circuit card having a processor, a user port for connecting at least one user device with the processor, and a plurality of interface ports for redundantly connecting the processor with the network to provide active redundant communication with the user device(s). This router can have a small form factor, can be ruggedized, and can provide fast redundant routing through redundant network backbones. | 2008-11-13 |
20080279096 | LIGHTWEIGHT NODE BASED NETWORK REDUNDANCY SOLUTION LEVERAGING RAPID SPANNING TREE PROTOCOL (RSTP) - A method for dynamic path failover in a network with two or more redundant and interconnected bridges, is described. A first bridge operates as a root bridge and each node includes two ports where each port is coupled to a respective one of the bridges. The method includes defining a bridge identifier at a node which presents the node as a capable bridge to the two or more fully compliant, RSTP enabled MAC bridges, forwarding a BPDU message from the node that defines the node as an inferior alternate path to the root bridge, facilitating the dynamic sensing of the absence of communication between the root bridge and the node, receiving a topology change message at the node from the second redundant bridge, and sending an agreement message from the node to the second redundant bridge such that the node automatically begins receiving messages from the second redundant bridge. | 2008-11-13 |
20080279097 | Methods, Systems, and Computer Program Products for Network Device Congestion Relief - A method, system, and computer program product for network device congestion relief are provided. The method includes receiving a level of congestion for a network device, receiving a data packet including a codec list, and determining a filter policy based on the level of congestion. The method further includes applying the filter policy to the data packet to remove at least one codec from the codec list when a filter policy condition is met, resulting in a filtered data packet, and outputting the filtered data packet. | 2008-11-13 |
20080279098 | Wireless Receiver Code Download and Boot Sequence - A process for initializing and booting the CPU of a wireless communication device includes a sequence controller, ROM, a ROM controller, a DMA controller, a wireless front end, a memory, and a remote wireless host which contains the download code. The sequence controller causes the ROM controller initially transfers a Source, a Destination and a Length to the DMA controller, which uses these values to copy the ROM contents into the memory. Thereafter, the sequence controller causes the CPU to start executing the code that has been transferred into memory by the ROM controller, and the CPU thereafter downloads the operating system into memory using the wireless front end, which is receiving an original and duplicate packet from the remote host. Upon completion of the download, the CPU executes the downloaded operating system and begins operation of the device. | 2008-11-13 |
20080279099 | High Capacity Scheduler - A first interface for receiving downlink data packets from a core network, a second interface for transmitting data packets to user entities, a processor comprising a scheduler, a first memory partition comprising and parameter data pertaining to a first subset of allocated priority queues, a second memory partition comprising parameter data pertaining to a second subset of allocated priority queues, is provided. The processor is transferring parameter data between the first and second memory partitions, and vice versa, whereby parameter data for priority queues having no data packets in corresponding buffers is prioritized for being transferred to the first memory partition, parameter data for priority queues having data packets in corresponding buffers is prioritized for being transferred to the second memory partition, the processor performing scheduling based on a selection of priority queues whose parameter data is residing in the second memory partition. | 2008-11-13 |
20080279100 | System and method to control communication of data - Systems and methods of controlling communication of data are provided. A method of controlling communication of data may include receiving, at a network component, a request for data associated with a data source. The network component may have a limited capacity to distribute data. The method also includes determining whether the network component is exceeding a first capacity threshold. When the network component is exceeding the first capacity threshold, the method includes determining whether the data source meets a popularity criterion. When the data source meets the popularity criterion, the method includes sending the data associated with the data source. | 2008-11-13 |
20080279101 | Context-Based Routing in Multi-hop Networks - Context-based routing in multi-hop networks involves using a context-based routing metric. In a described implementation, respective path values are calculated for respective ones of multiple paths using the context-based routing metric. A path is selected from the multiple paths responsive to the calculated path values. Data is transmitted over at least one link of the selected path. In an example embodiment, the context-based routing metric is ascertained responsive to an estimated service interval (ESI) of a bottleneck link of each path of the multiple paths. In another example embodiment, the context-based routing metric is ascertained responsive to an expected resource consumption (ERC) metric. In an example embodiment of path selection, the path is selected using a context-based path pruning (CPP) technique that involves maintaining multiple local contexts at each intermediate node, with each local context representing at least one partial path. | 2008-11-13 |
20080279102 | PACKET DROP ANALYSIS FOR FLOWS OF DATA - In one embodiment, a method includes determining that a packet has been dropped for a flow of packets between a source and destination. This may be determined at a network device that is forwarding the packets. Information related to a possible cause for the packet being dropped is then determined. For example, a context as to why the packet is dropped may be determined. The context is then associated with information for the flow and is useful to perform a packet drop analysis for the flow. For example, a source and destination for the flow is recorded along with the possible cause of the packet drop. This information may be stored and sent to an aggregation device. The aggregation device may then analyze the entry, possibly along with other entries from this network device or other network devices, and determine any troubleshooting information for the packet drops. | 2008-11-13 |
20080279103 | Network Availability Enhancement Technique for Packet Transport Networks - A packet communications network that transports a plurality of traffic over a plurality of server transport paths from a source to a destination, the network comprising: using a load distribution method to distribute each instance of traffic to an individual transport path, thereby avoiding reordering at the destination; enabling all the transport paths to carry the traffic; allowing the network to provision a preferred traffic distribution through a policy setting; and redistributing the traffic when a condition on one of the transport paths changes. Also disclosed is a composite transport group component comprising: a processor configured to implement a method comprising: receiving a server trail failure notification message; and performing a dynamic redistribution of traffic over a plurality of server trails, thereby transporting substantially all of the traffic associated with a class of traffic transported over the server trail associated with the server trail failure notification message. | 2008-11-13 |
20080279104 | METHODS AND SYSTEMS FOR CENTRALIZED LINK POWER MANAGEMENT CONTROL (CLMC) - A method for centralized link power management control (CLMC), performed by a north-bridge of a processing unit, comprises the following steps. A data transmission status of a bus is monitored. CLMC is activated to configure devices corresponding to the bus in order to speed up data transmission of the bus when detecting that the data transmission status of the bus is continually busy. CLMC is activated to configure devices corresponding to the bus in order to slow down data transmission of the bus when detecting that the data transmission status of the bus is continually idle. | 2008-11-13 |
20080279105 | GPON OAM USING IEEE 802.1ag METHODOLOGY - Operations, administration and management (OAM) functions in a passive optical network (PON) can be performed by providing a system of flow points (i.e., software entities), such as those along the lines of the Maintenance End Points (MEPs) and Maintenance Intermediate Points (MIPs) described in the IEEE 801.1ag specification, which communicate connectivity fault test messages with each other. The flow points can be provided in the Optical Line Terminal (OLT) and Optical Network Terminator (ONT). Alternatively or in addition, flow points can be provided in a subscriber gateway coupled to the ONT. The flow points issue test messages, to which other flow points can respond with information regarding the state of network connectivity. | 2008-11-13 |
20080279106 | SWITCHING FABRICS AND CONTROL PROTOCOLS FOR THEM - A network unit for use in a switching fabric includes multiple units collectively constituting a single network entity, each having ports for the reception and forwarding of data packets. The network unit has at least one fabric port for connection to a partner port on another one of the units by at least one link. The network unit is organized to send and receive via the at least one fabric port protocol packets which contain information on the path costs between said units in the fabric and to perform an algorithm to determine, on the basis of said information, routes for data packets within the fabric to other units of the fabric. | 2008-11-13 |
20080279107 | Diagnostic Tool and Method for Retrieving Subscriber Information from Nodes Located Within a Layer 2 Aggregation Network - An in-band diagnostic tool and method are described herein that are capable of retrieving subscriber information from one or more nodes located within a layer 2 aggregation network. In one application, the diagnostic tool and method can be used by a customer service representative to retrieve subscriber information (e.g., user privileges, current bandwidth usage, available bandwidth) related to a customer that receives television, Internet etc. from an Internet Protocol Television (IPTV) network (which is an application-specific layer 2 aggregation network). | 2008-11-13 |
20080279108 | Method for Processing Quality of Service of a Data Transport Channel - A method for processing quality of service of a signaling data transport channel in a packet transmission network comprising at least one management node ( | 2008-11-13 |
20080279109 | FAST ERROR DETECTION SYSTEM AND RELATED METHODS - A system apparatus and method generates a communications signal having an error detection mechanism. A circuit generates a data packet. An encoder multiplies and accumulates data words with values in a distance table containing non-repeated n-bit multipliers having “m” number of one bits that are set to obtain accumulated sum bits and appends the accumulated sum bits to the data packet as an error detection code to form a communications signal to be transmitted. | 2008-11-13 |
20080279110 | Method and system for verifying connectivity of multi-segment pseudo-wires - A method for testing connectivity of a multi-segment pseudo-wire (“MS-PW”) in a network, the method comprising: sending an echo request message from a first provider edge (“PE”) device to a second provider edge (“PE”) device for a section of the multi-segment pseudo-wire (“MS-PW”) between the first provider edge (“PE”) device and the second provider edge (“PE”) device; the echo request message being identified as such by a control word contained therein; an inner label of the echo request message having a time-to-live (“TTL”) value set to a number of segments in the section; the time-to-live (“TTL”) value for determining whether the control word is to be inspected as it traverses the section; upon the echo request message arriving at the second provider edge (“PE”) device, the second provider edge (“PE”) device recognizing the echo request message as such by inspecting the control word contained therein; and, receiving an echo reply message from the second provider edge (“PE”) device in response to the echo request message, the echo reply message confirming connectivity of the section. | 2008-11-13 |
20080279111 | COLLECTING NETWORK TRAFFIC INFORMATION - An apparatus and method for collecting network traffic information is arranged to receive network traffic elements including one or more key fields having respective key field values. The apparatus and method further classify received network traffic elements into one of a plurality of flows dependent on the key field value of one or more key fields defined by a flow profile. The method and apparatus are further configurable to vary the flow profile, create a flow record and export the flow record to a collecting node. | 2008-11-13 |
20080279112 | SYSTEM AND METHOD FOR CONFIGURING MEDIA NETWORK RESOURCES - A system and method for configuring media resources is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a network element having a controller element to present a graphical user interface (GUI) to identify available configuration settings for one or more self-describing services offered to one or more media devices in the network, and manage a network connectivity of the media devices in the network to receive the one or more self-describing services in accordance with a selection of the available configuration settings. Additional embodiments are disclosed. | 2008-11-13 |
20080279113 | Information Gathering From Traffic Flow in a Communication Network - The invention relates to a method for gathering information from traffic flowing in communication networks. The method includes generating in a network element, which sees the traffic flowing in the network, events on the basis of the traffic flow and predefined instructions, an event being a piece of information indicating that a certain matter has occurred in the traffic flow, sending said events for analysis in a central processing element, analysing said events in said central processing element, and conveying on the basis of said analysis information to network operator systems. | 2008-11-13 |
20080279114 | METHOD AND APPARATUS FOR PROVIDING SERVICE AVAILABILITY INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for providing service availability information includes receiving a signal transmitted from a base station. A power level and interference level of the received signal is measured and an estimate of a power level of each potentially available service based on the power level of the received signal and predetermined power offsets associated with each of a plurality of potentially available services is derived. An estimate of a signal-to-interference ratio (SIR) for each potentially available service from the estimate of a power level of each service and the measured interference level and a service availability indicator for each potentially available service by dividing the estimated SIR with a target SIR are calculated. Service availability indicators for each potentially available service are outputted. | 2008-11-13 |
20080279115 | Method And Device For Implementing Resource Control On An Access Layer For A VC In An L2VPN - The present disclosure discloses a method and device for implementing resource control on an access layer for a VC in an L2VPN. In an MPLS network, during the establishment of a VC session, PEs interact with each other through an LDP mapping message from the local end and an LDP mapping message from the remote end for negotiating the bandwidth parameter. The PE device compares the analyzed bandwidth parameter of the opposite end with the bandwidth parameter configured for VC at the local end. If they are consistent, the bandwidth parameter is valid. If they are not consistent, the corresponding bandwidth parameters values are compared, and the bandwidth with the smaller value is valid. Alternatively a negotiation failure message is returned. The present disclosure can realize bandwidth control for each VC on the PE device on the access layer. | 2008-11-13 |
20080279116 | Method For Obtaining Configuration Data For a Terminal By Using the Dhcp Protocol - A method of obtaining configuration data for a terminal using the DHCP protocol. The method includes inserting optional data including an identifier into a predefined option field of a DHCP request sent by a DHCP client module to obtain configuration data, directly or indirectly, with a single user of the terminal, to obtain configuration data customized for the user. | 2008-11-13 |
20080279117 | Method and system for a hotel based meeting & conference communications network - A method and system for implementation and operation of an interactive communications network for meeting, trade show, convention or conference (“event”) organizers and attendees, which is implemented in one or more hotels proximate to the event facilities, with an access device in guest rooms as well as additional implementations for universal access by event attendees, which access provides for real time messaging and on demand information and communications between the organizers and attendees for access to both static and changing information about the event, such as schedules, locations, speakers and other information typically pertinent to event attendees. | 2008-11-13 |
20080279118 | SYSTEM AND METHOD FOR PROVIDING SESSION INITIATION PROTOCOL BASED CONFERENCE SERVICE - A system for providing a session initiation protocol based conference service includes: a conference host terminal that produces requests to setup a call using identification information, to make a registration of participants to be invited to a conference session using a conference identifier, and to initiate the conference session using the conference identifier; a plurality of conference participant terminals as the participants that participate in the conference session; and a conference server having the identification information. The conference server issues the conference identifier to the conference session; stores therein the participant information; and sends to each of the conference participant terminals corresponding to the stored participant information a message to invite the conference participant terminal to the conference session, the message containing the conference identifier, thereby creating the conference session with conference participant terminals which have sent to the conference server acknowledgement messages. | 2008-11-13 |
20080279119 | GROUP CALL CAPABILITY QUERY - A system and method for handling multimedia conference calls in a telecommunication network. To determine the capabilities of the other terminals in a group, a first terminal sends a query message to a group server. The group server sends further query messages to the other terminals and collects their responses containing their capabilities. The group server analyzes the capabilities to determine a common set of capabilities. The group server then sends the common set of capabilities in a response to the first terminal. | 2008-11-13 |
20080279120 | Systems and Methods for Receiver Upgrade - Systems and methods for an upgradeable and/or reconfigurable receiver are provided. In general, the present invention is directed to providing systems and methods for designing an electronic communication system having easy and cost effective upgradeable receiver systems and components including, for example, an amplifier and/or a filter. For example, a receiver may include a receiver front end that is configured so that at least one of the original conventional system components may be used along with one or more new system components to provide greater receiver sensitivity and/or selectivity. In various embodiments, portions of an upgradeable receiver system may be made as modular components that allow easy replacement for the upgradeable components which may include a signal amplifier and/or a signal filter. In various embodiments the receiver may be upgraded by replacing a conventional low noise amplifier (LNA) with a high temperature superconductor (HTS) filter and/or a cryo-cooled LNA. | 2008-11-13 |
20080279121 | Signal to interference ratio error as a load instability indicator for load control in cellular systems - An uplink signal-to-interference ratio for each of multiple mobile radio terminal connections supported in a cell in a cellular communications system is estimated. A signal-to-interference ratio error is determined for selected ones of the estimated uplink signal-to-interference ratios. One or more signal-to-interference ratio errors are identified that exceed a signal-to-interference ratio error threshold. An instability indicator associated with the cell is determined based on the one or more identified signal-to-interference ratio errors. A load control decision and/or a decision for scheduling one or more uplink mobile radio transmissions in the cell may then be made based on the instability indicator, e.g., to prevent a transmission power rush in the uplink in the cell and/or to efficiently use available resources for uplink transmissions. | 2008-11-13 |
20080279122 | LEAKAGE POWER REDUCTION APPARATUS - A circulator extracts a transmission signal sent from a transmitter to antenna via the circulator and a duplexer, reflected by an antenna, and returned via the duplexer to the transmitter side. The amplitude and phase of the extracted signal are adjusted by an amplitude-and-phase adjuster to generate an offset signal having the same amplitude and the opposite phase with respect to a leaking transmission signal included in a signal output from a third terminal of the duplexer when combined by a combiner. The offset signal is combined in the combiner with the leaking transmission signal included in the signal output from the third terminal of the duplexer to suppress the leaking transmission signal. | 2008-11-13 |
20080279123 | Time division duplex wireless network and associated method using connection modulation groups - A wireless network is provided that includes a base station and subscriber stations that communicate with the base station using radio frequency (RF) time division duplex (TDD) signaling. The base station may establish medium access control (MAC) connections with each station. The base station monitors communications with the stations and, in accordance, assigns stations or MAC connections to modulation groups. The base station transmits signals on MAC connections or to stations in a modulation group in adjacent TDD slots within a TDD frame. The base station may receive access requests from the stations, evaluate traffic requirements for the stations, and determine a longest downlink portion for the stations. The base station then allocates downlink and uplink portions of a TDD frame according to the length of the longest downlink portion. | 2008-11-13 |
20080279124 | OFDM WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION APPARATUS - In a wireless communication system wherein at least two communication units employ the TDD wireless communication method based on OFDMA, an OFDM wireless communication method and a wireless communication apparatus are disclosed. The first communication unit transmits a pilot signal over the whole subband zone configured of divisions of a predetermined system band. The second communication unit having a plurality of antennas estimates a propagation path of the subchannels constituting continuous frequency blocks making up a subband from the pilot signal received. The second communication unit determines the array weight used at the time of signal transmission to the first communication unit using the estimation result. | 2008-11-13 |
20080279125 | Method, a Device and a System For Duplex Communications - A method, a device, and a system for duplex communications. Uplink and downlink frequencies are allocated in an orthogonal manner such that at one time instant a certain carrier frequency is used for uplink (downlink) transmission and at some other time instant for downlink (uplink) transmission. Correspondingly, at said one time instant a second carrier frequency is used for downlink (uplink) transmission and at said some other time instant optionally for uplink (downlink) transmission. | 2008-11-13 |
20080279126 | MANAGING DISTRIBUTED ACCESS TO A SHARED MEDIUM - Communicating between stations in a network is described. A plurality of stations coordinate according to a distributed protocol to select a first station to transmit over a shared medium. The communication includes transmitting between the first station and a second station over the shared medium during a time period in which stations other than the first and second stations refrain from transmitting over the shared medium. The first station transmits information that grants permission to the second station to transmit during the time period. | 2008-11-13 |
20080279127 | TECHNIQUES FOR TIMING OPTIMIZATION IN WIRELESS NETWORKS THAT UTILIZE A UNIVERSAL SERVICES INTERFACE - An embodiment of the present invention provides an apparatus, comprising a mobile station (MS) operable to communicate with an application service provider (ASP) in a wireless network, the wireless network including a Universal Services Interface (USI); and wherein the MS includes a USI client adapted to store some or all USI context as required by said ASP and wherein when a user accesses the ASP using something other than a web-browser, the USI client inserts relevant USI context as part of an ASP request message. | 2008-11-13 |
20080279128 | Simultaneous wireless support in software defined radio - A system and method for providing the ability to discover the capabilities of a user's computer to determine whether it is capable of supporting more than one wireless protocol simultaneously is provided. A computing device's capabilities (including, for example, hardware and/or software capabilities) is checked to determine if it supports at least two specific wireless protocols and checking a computing device's capabilities (including, for example, hardware and/or software capabilities) is checked to determine if it supports both wireless protocols simultaneously. The techniques for determining the computing device's compatibility may include comparing lists of protocol requirements to lists of system capabilities and/or generating test signals by the system according to the protocol. | 2008-11-13 |
20080279129 | SYSTEM AND METHOD FOR AUTOMATIC WIRELESS TRANSPORT SELECTION FOR INCREASED PERFORMANCE AND REDUCED POWER CONSUMPTION - A system and method for automatic wireless transport selection for increased performance and reduced power consumption. Multiple wireless transport services can appear to a TCP/IP stack as a single adapter. Management of the multiple wireless transport services can be performed below the TCP/IP stack to optimize on criteria such as power consumption and bandwidth. | 2008-11-13 |
20080279130 | Bluetooth and Wireless Network Coexistence - Implementations are presented herein that relate to Bluetooth® and Wireless Network Coexistence. | 2008-11-13 |
20080279131 | UPLINK TIMING CONTROL - Systems and methodologies are described that facilitate evaluating and utilizing timing updates in a wireless communications network. A base station can transmit timing adjustment commands to mobile devices as needed as opposed to a periodic timing update where timing adjustment commands are always sent within a certain period. However, the mobile devices need to stay awake to monitor the timing adjustment message resulting in high power consumption. On the other hand with periodic update, the mobile devices can wake up to check whether there is a timing adjustment for itself and, if not, return to a sleep mode. With the proposed method, a mobile device can sleep for a period of time to check for timing adjustment commands upon waking. Thus, both the mobile power consumption and downlink signaling overhead are reduced. | 2008-11-13 |
20080279132 | Wireless Communication Device - A plurality of nodes each including a transmitter, a receiver, and a controller is linked together via a network. The transmitter of a transmission node using multiple wireless interfaces sends a beacon message sending its own node identifier and wireless interfaces to at least one reception node, which in turn sends back a response message sending its own node identifier and at least one usable wireless interface. The controller of the transmission node determines the broadcast order based on the response message received by the receiver. The transmitter of the transmission node performs broadcasting or multicasting using the wireless interface, which is selected based on the broadcast order. Thus, it is possible to perform broadcasting or multicasting at an efficient usage of radio frequency while covering all reachable neighboring nodes in node-to-node wireless communications based on multiple wireless communication methods. | 2008-11-13 |
20080279133 | WIRELESS ROUTER SYSTEM AND METHOD - A wireless router employing a technique to couple a plurality of host services or host systems and a plurality of wireless networks. A method to route data items between a plurality of mobile devices and a plurality of host systems through a common wireless router. A point-to-point communication connection is preferably established between a first host system and a common wireless router, a mobile network message at a mobile device is generated, the mobile network is transmitted via a wireless network to the common wireless router which in turn routes a data item component of the mobile network message to the appropriate host service. | 2008-11-13 |
20080279134 | METHOD AND APPARATUS FOR COMMUNICATION OF MOBILE TERMINAL USING RELAY DEVICE - A method and apparatus for allowing a mobile terminal to communicate using a relay device are provided. In the method, whether a communication environment between a base station and the relay device changes is determined so that information representing the change in the communication environment is selectively created, and then a communication environment between the relay device and the mobile terminal is controlled based on the created information. | 2008-11-13 |
20080279135 | COVERAGE IMPROVEMENT IN WIRELESS SYSTEMS WITH FIXED INFRASTRUCTURE BASED RELAYS - Infrastructure relays are used to relay signals to multi-antenna receivers where the received signals are then processed using MIMO processing. The transmissions can use spatial multiplexing and/or space time block coding. | 2008-11-13 |
20080279136 | TECHNIQUES TO INCLUDE VIRTUAL PRIVATE NETWORKS IN A UNIVERSAL SERVICES INTERFACE - An embodiment of the present invention provides an apparatus, comprising a mobile station (MS) operable to communicate in a wireless network, the wireless network including a Universal Services Interface (USI) and wherein the MS includes a USI client adapted to monitor external IP addresses of the MS and if the MS enters a virtual private network (VPN) via a VPN tunnel, the external IP address of the VPN tunnel is cached. | 2008-11-13 |
20080279137 | DISCONTINUOUS INQUIRY FOR WIRELESS COMMUNICATION - A system for managing the operation of a plurality of wireless communication mediums supported by one or more radio modules integrated within a wireless communication device. A control strategy may be employed to regulate the operation of at least one wireless communication medium operating in a continuous mode, such as an discovery or inquiry mode, so as not to conflict with other active communication occurring substantially simultaneously within the wireless communication device. The regulation may occur in the one or more radio modules, and may include rescheduling part of, or alternatively a whole, discovery hop train. | 2008-11-13 |
20080279138 | Cooperative transceiving between wireless interface devices of a host device with shared modules - An circuit includes a first wireless interface circuit that transceives packetized data between a host module and a first external device in accordance with a first wireless communication protocol. A second wireless interface circuit transceives packetized data between the host module and a second external device in accordance with a second wireless communication protocol. The second wireless interface circuit includes at least one module that is shared with first wireless interface circuit, the module having a first state where the module is operational and a second state corresponding to a low-power state. The first wireless interface circuit and the second wireless interface circuit operate in accordance with a wireless interface schedule that includes a first time interval where the first wireless interface device and the second wireless interface device contemporaneously use the at least one module in the first state and a second time interval where the at least one module is in the second state. | 2008-11-13 |
20080279139 | Method for Managing Radio Resources in an Utran Radio Access Network - The invention relates to a method for managing radio resources allocated by a radio network controller of a UTRAN radio access network, said resources supporting a plurality of service requests each identified by a radio access bearer service request sent by the core network and describing the QoS required in the form of a set of RAB parameters defined by mapping with corresponding QoS parameters of the core network, said controller being provided to distribute the resources amongst the various bearer services and to modulate the allocation of said resources according to the priority level associated with each of said bearer services, said priority level being defined by the “priority level” sub-parameter of the “Allocation Retention Priority” RAB parameter, whose value is determined by taking into account, on the one hand, the value of said “Allocation Retention Priority” QOS parameter of the core network and, on the other hand, the value of at least one QoS parameter associated with the type of service. | 2008-11-13 |
20080279140 | SYSTEM AND METHOD OF QOS-BASED CHANNEL SELECTION FOR WLAN ACCESS POINTS OR STATIONS - A system comprises a candidate channel assessment module for obtaining at least one AC-specific channel suitability metric for each of two different channels, and for using the AC-specific channel suitability metrics to determine a channel suitability index of each of the two different channels; a channel selection module for using the channel suitability index to select one of the two different channels as a new channel; and a channel setting module for configuring a wireless transceiver to use the new channel. | 2008-11-13 |
20080279141 | Methods for optimal multi-channel assignments in vehicular ad-hoc networks - A communications path is established among an ordered sequence of moving nodes, representing vehicles. Available channels may differ from one node to the next node and a node cannot use the same channel for both receiving and transmitting information. Three methods are described that provide an optimal sequence of channel assignments between the nodes. A sequence of channel assignments is called optimal if it establishes a communications path from the first node in the sequence to the last node in the sequence, or, if such a path does not exist, from the first node to the farthest node possible in the sequence. The first method uses a depth-first search starting from the first node in the sequence. The second method uses a “look ahead” scheme in the depth-first search method. The third method requires only a single pass through the sequence of nodes by identifying optimal channel assignments in subsequences of nodes without a need for backtracking. | 2008-11-13 |
20080279142 | Method for Adaptive Transmit Power Allocation in Multiuser Ofdm System - Provided is a method for adaptive transmit power allocation in a multiuser OFDM system. The method includes: a) obtaining a channel gain for a predetermined bit period for each user at a predetermined time, and allocating all of available sub carriers to a user farthest separated among a plurality of users having a good channel gain; b) comparing a channel gain of the user allocated with the subcarrier at the step a) with an initial threshold value; c) allocating a transmit power uniformly to each of the sub carries allocated at the step a) using an Equal-power allocation algorithm if the channel gain is larger than the initial threshold value at the step b); and d) allocating a transmit power to each of the sub carriers allocated at the step a) using a water-filling power allocation algorithm if the channel gain is smaller than the initial threshold value at the step b). | 2008-11-13 |