39th week of 2008 patent applcation highlights part 30 |
Patent application number | Title | Published |
20080232376 | CONTROL METHOD, SYSTEM AND FUNCTION ENTITY FOR REPORTING BEARER EVENT OF SIGNALING IP FLOW - A control method, system and function entity for reporting a bearer event of a signaling IP flow are provided. A 5-tuple is generated for a signaling IP flow and a media IP flow so as to unify a mechanism for reporting a signaling path status and a mechanism for reporting a bearer event of a media IP flow, so that the mechanism for reporting a signaling path status is not limited by the parameter of Flow Usage, the PDP context with a signaling tag, thereby establishing corresponding PCC rules for signaling and the association between a signaling IP flow and a bearer. A method for reporting a signaling path status is further provided in the invention. In the method, for a default PDP context or a PDP context of a signaling IP flow, the predefined PCC rules are activated or signaling PCC rules generated in accordance with an Application Function address are installed, thereby an IP signaling path status is reported in accordance with rule names of the predefine PCC rules or the signaling PCC rules. | 2008-09-25 |
20080232377 | COMMUNICATION DEVICE AND METHOD FOR CONTROLLING THE OUTPUT OF PACKETS - An apparatus including a holding portion temporarily holding packets for each individual quality class; a counter counting the amount of data of packets output from the holding portion for each individual quality class; a comparison portion comparing count values of the counter for individual quality classes with threshold values which are threshold values for the quality classes, respectively, the ratio of the threshold values for the quality classes being coincident with the weighting ratio between the quality classes; an output portion outputting packets held in the holding portion based on results of comparisons made by the comparison portion; and a control portion which, according to the results of the comparisons, subtracts values corresponding to the threshold values for the quality classes from the count values of the counter for the individual quality classes. | 2008-09-25 |
20080232378 | Data Packet Communication Protocol Offload Method And System - A computing system, comprising a host computer system, a primary data packet communication protocol (such as TCP/IP) offload engine configured to act as an offload engine for the host computer system, and an alternate data packet communication protocol (such as TCP/IP) offload engine configured to act as an offload engine for the host computer system if the primary offload engine fails. The host computer system, the primary offload engine and the alternate offload engine are in data communication, the primary offload engine is configured to save predefined data packet communication protocol parameters to the host computer system during normal operation, the alternate offload engine is configured to retrieve the parameters from the host computer system if the primary offload engine fails. | 2008-09-25 |
20080232379 | Configuration Tool for MPLS Virtual Private Network Topologies - Configuration tool for virtual private network (VPN) topologies. In particular implementations, a method includes accessing a network topology configuration set comprising one or more route target groups (RTGs), wherein each RTG comprises a topology type identifier, one or more site identifiers, one or more role identifiers associated with each of the site identifiers, and one or more route target identifiers; generating one or more route target statements, based on the topology type identifier and role identifiers of one or more RTGs, defining the export or import of network layer reachability information between one or more routing nodes in a virtual private network (VPN) topology; and transmitting the one or more route target statements to one or more routing nodes. | 2008-09-25 |
20080232380 | Network system and audio signal processor - An audio network system that performs transport of audio signals among nodes by cascading a plurality of nodes each including two sets of transmission I/Fs and reception I/Fs, and circulating among the nodes in each fixed period an audio transport frame generated by a master node, is configured such that the master node generates the audio transport frame in an S-th period based on the audio transport frame in an (S−k)-th period, and each of the other nodes delays the audio signals written by another node after the audio transport frame is generated by the master node until the audio transport frame is transmitted to the self node, by k period(s) with respect to the other audio signals, for use in signal processing. | 2008-09-25 |
20080232381 | Method, terminal and media-relay for establishing a multi-media connection - In one aspect, a multi-media connection is established in a communications system based on packet oriented communication with at least a first station only supporting IPv6 data-packets, at least a second station only supporting IPv4 data-packets and at least a media relay station. A communication between the first station and the second station is at least partially established via the media relay station. A terminal and a media relay are also provided. | 2008-09-25 |
20080232382 | Mobile Wireless Communication System, Mobile Wireless Terminal Apparatus, Virtual Private Network Relay Apparatus and Connection Authentication Server - A mobile radio communication system ( | 2008-09-25 |
20080232383 | TRANSPARENT WIRELESS BRIDGE ROUTE AGGREGATION - In an example embodiment, there is described herein a “Wireless Route Aggregation Protocol” (WRAP) that is used to aggregate multiple wireless links into a WRAP “route bundle” that functions as a single logical LAN bridge link. WRAP link aggregation can be used for example to increase the bandwidth and robustness of the wireless path between two wired Ethernet LANs. | 2008-09-25 |
20080232384 | VIRTUAL PRIVATE NETWORK APPARATUS - A VPN apparatus is included in a VPN system with other VPN apparatuses to interconnect bases including first bases each having an access line and a second base having at least two access lines. The VPN apparatus comprises a first virtual VPN apparatus and a second virtual VPN apparatus. The first virtual VPN apparatus is connected to one of the first bases via an access line and carries out frame forwarding by using a first forwarding table for forwarding frames to be transmitted/received between two first bases or between one first base and one second base. The second virtual VPN apparatus is connected to the second base via one of the at least two access lines, carries out frame forwarding by using a second forwarding table for forwarding frames to be transmitted/received between at least two bases including the second base, and does not carry out forwarding frames to one of the other VPN apparatuses that is connected to the second base via another one of the at least two access lines. | 2008-09-25 |
20080232385 | COMMUNICATION SYSTEM, NODE DEVICE AND METHOD FOR SETTING CLASSES OF SERVICE - A communication system comprises a plurality of packet rings, each composed of a plurality of node devices, the node devices each transmitting and receiving a packet and being interconnected in a ring; two of the packet rings being interconnected via a pair of node devices each in each of the packet rings; the communication system further comprising: a table having recorded therein the correspondence between inter-ring service classes set between the packet rings and intra-ring service classes set in each packet ring; wherein the packet transferred in the packet ring includes information on the intra-ring service classes, as intra-ring header information, and information on the inter-ring service class, as inter-ring header information, the inter-ring service class(es) being correlated with the intra-ring service class(es), and being determined based on the table; the intra-ring header information being deleted when the packet is transferred from one of the packet rings to another. | 2008-09-25 |
20080232386 | PRIORITY BASED BANDWIDTH ALLOCATION WITHIN REAL-TIME AND NON-REAL-TIME TRAFFIC STREAMS - A method and system for transmitting packets in a packet switching network. Packets received by a packet processor may be prioritized based on the urgency to process them. Packets that are urgent to be processed may be referred to as real-time packets. Packets that are not urgent to be processed may be referred to as non-real-time packets. Real-time packets have a higher priority to be processed than non-real-time packets. A real-time packet may either be discarded or transmitted into a real-time queue based upon its value priority, the minimum and maximum rates for that value priority and the current real-time queue congestion conditions. A non-real-time packet may either be discarded or transmitted into a non-real-time queue based upon its value priority, the minimum and maximum rates for that value priority and the current real-time and non-real-time queue congestion conditions. | 2008-09-25 |
20080232387 | Electronic Device and Method of Communication Resource Allocation - An electronic device is provided, comprising an interconnect means (N) for connecting a plurality of modules (IP; A-D, M) to enable a communication between the modules (IP; A-D, M), wherein communication resources relate to a time division multiple access based on time slots for dividing and sharing an available communication bandwidth. The electronic device furthermore comprises at least one network interface for coupling at least one of the plurality of modules (IP; A-D, M) to the interconnect means (N). The network interface (NI) is adapted to establish at least one connection to at least one further network interface (NI). The at least one connection comprises at least one channel (a d). The at least one network interface (NI) comprises at least one slot table (ST | 2008-09-25 |
20080232388 | FORWARDING APPARATUS, FORWARDING METHOD, AND COMPUTER PRODUCT - An apparatus for forwarding a frame according to a transfer condition includes a transfer-condition storage unit, a deleted-area data storage unit, and a transfer-condition searching unit. The transfer-condition storage unit stores therein, destination data that is likely to be included in the frame, area data indicating an area of destination indicated by the destination data, and the transfer condition in such a way that the area data and the transfer condition are associated with the destination data. The deleted-area data storage unit stores therein as deleted area data, the area data assigned to data to be deleted from the transfer-condition storage unit. The transfer-condition searching unit removes, from a search target, an area to which the deleted area data stored in the deleted-area data storage unit is assigned, to search, from the transfer-condition storage unit, for the transfer condition corresponding to the destination data included in the frame. | 2008-09-25 |
20080232389 | Distributed Overlay Multi-Channel Media Access Control for Wireless Ad Hoc Networks - Systems and methods for distributed overlay multi-channel MAC for wireless ad hoc networks are described. In one aspect, the systems and methods divide channel frequencies defined by a wireless network protocol into a single home channel and multiple guest channels that are orthogonal to the home channel. Each of the network nodes in the ad hoc network operates on the home channel for respective variable and overlapping amounts of time to maintain network connectivity with other respective network nodes. Additionally, each of the network nodes determines whether and when to switch from the home channel to a particular guest channel of the guest channels for a variable amount of time to increase data throughput over one or more corresponding communication links in the ad hoc network with other network node(s). | 2008-09-25 |
20080232390 | PATH MULTIPLEXING COMMUNICATION SYSTEM, COMMUNICATION NODE, AND COMMUNICATION METHOD - A communication system including first, second, and third nodes interconnected via interconnect links, a primary path composed of an interconnect link between the first node and the third node, and a secondary path composed of an interconnect link between the first and second nodes and an interconnect link between the second and third nodes, wherein | 2008-09-25 |
20080232391 | METHOD AND SYSTEM FOR ADAPTIVELY OBTAINING BANDWIDTH ALLOCATION REQUESTS - A method and apparatus for adaptively obtaining bandwidth requests in a broadband wireless communication system. The method and apparatus includes dynamically varying technique combinations enabling a plurality of users to efficiently request bandwidth from a shared base station. A user may “piggyback” a new bandwidth request upon, or set a “poll-me bit” within, presently allocated bandwidth. A base station may poll users, individually or in groups, by allocating unrequested bandwidth for new requests. Polling may respond to a “poll-me bit,” and/or it may be adaptively periodic at a rate based on communication status parameters, such as recent communication activity and connection QoS levels Group polling permits a possibility of collisions. Polling policies may be established for dynamically varying user groups, or may be determined for each user. Dynamic selection of appropriate polling techniques makes use of efficiency benefits associated with each technique. | 2008-09-25 |
20080232392 | METHOD AND SYSTEM FOR PROCESSING SESSION INITIATION PROTOCOL MESSAGES - A method and system for processing session initiation protocol messages including receiving a session initiation protocol message by a front end, parsing the session initiation protocol message by the front end, grouping the token types and the token contents in the session initiation protocol message respectively, and setting up corresponding links between the token types and the token contents, wherein the session initiation protocol message, after parsing, is transformed to the session initiation protocol offload engine message with a session initiation protocol offload engine message header part, for storing message level information, a token type part, for storing token type information, wherein it comprises a plurality of fixed-length entries, and a token content part for storing token contents, wherein it comprises a plurality of variable-length entries, and processing the transformed session initiation protocol offload engine message at the server end. | 2008-09-25 |
20080232393 | REMOVAL OF AMBIGUITIES IN FORMING NEW PICONET CONTROLLER (PNC) WHEN THE CURRENT PCN CONTROLLER IS SUDDENLY UNAVAILABLE - A piconet in which at least one master communication station and at least one slave communication station are self-designated implements a successor hierarchy. A wireless device (DEV) functioning as a piconet controller (PNC) poll a plurality of DEVs to obtain data concerning other DEVs in range of the respective polled DEVs. Data concerning stations in range of the respective polled stations is received and at least one successor DEV is selected as a successor PNC based on the received data concerning stations in range of the respective polled DEVs. The selection of the successor DEVs is communicated to the successor DEVs. This provides for continuity of communication. | 2008-09-25 |
20080232394 | Method For Regulating the Transmission Parameters of Broadband Transmission Channels Assembled to Form a Group - The invention relates to a novel algebraic method wherein sub-groups of subscribers that spectrally influence each other, in a group of broadband subscriber connections or transmission channels connected to an intelligent network node in a star-shaped manner are classified by observing status variations in operation or in test phases of the individual transmissions, and the spectral influence relation or interference relation is identified with or without using specific test signals during the operation of the network node, without interrupting the data transmissions. The fundamental parameters of the data transmission methods of all of the connected subscribers are optimized from the information obtained in this way, for maximum operator use. | 2008-09-25 |
20080232395 | APPARATUSES AND METHODS FOR MULTI-ANTENNA CHANNEL QUALITY DATA ACQUISITION IN A BROADCAST/MULTICAST SERVICE NETWORK - Various methods and apparatuses provide unicast channel data acquisition, such as antenna information, from MBMS subframes. A method of operating a wireless communications network infrastructure entity is disclosed comprising transmitting a subframe ( | 2008-09-25 |
20080232396 | APPARATUSES AND METHODS FOR MULTI-ANTENNA CHANNEL QUALITY DATA ACQUISITION IN A BROADCAST/MULTICAST SERVICE NETWORK USING A MULTICAST SYMBOL - Various methods and apparatuses provide unicast channel data acquisition, such as antenna information, from MBMS subframes. A method of operating a wireless communications network infrastructure entity is disclosed comprising defining a subframe ( | 2008-09-25 |
20080232397 | Selective mode PHY device and method for managing power utilization using same - There is provided a method of managing power utilization for use by a first communication system having a first communication mode and a second communication mode, for communication over a PHY connection through a cable connecting the two systems. The method comprises establishing the PHY connection with the second communication system, detecting interoperability of the two systems in the first communication mode, determining a length of the cable connecting the first communication system to the second communication system, selecting a mode based on the length of the cable, if the detecting detects interoperability of the first communication system and the second communication system in the first communication mode, selecting the second communication mode as the mode, if the detecting does not detect interoperability of the first communication system and the second communication system in the first communication mode, communicating data using the PHY connection through the cable in the mode. | 2008-09-25 |
20080232398 | VIRTUAL USB COMMUNICATIONS PORT - A method and system for accessing a remote real communication port (“COM port”) from a server blade in a server blade chassis by creating a virtual COM port in the server blade. A basic input/output system (BIOS) controller monitors an internal COM port in the server blade for communication traffic. Upon detecting the communication traffic, the BIOS controller reroutes the traffic to a virtual USB COM port created by the BIOS controller chipset. The virtual USB COM port directs the communication traffic to an internal universal serial bus (USB) device in the server blade. The USB device then forwards the traffic to an Ethernet media access controller (MAC) input/output (I/O) on a sideband channel to a remote system, which passes the communication traffic to a real COM port in the remote system. | 2008-09-25 |
20080232399 | SYSTEM AND METHOD FOR MODIFYING PARAMETERS OF AN AIR LINK - A method, computer program product and electronic device for adjusting a conversion parameter (C | 2008-09-25 |
20080232400 | DYNAMIC MANAGEMENT OF RECEIVER RESOURCES - Techniques for dynamically managing receiver resources to achieve good latency and throughput performance are described. A receiver may have various types of receiver resources such as demod resources for demodulating packets, decode resources for decoding packets, packet processing resources, etc. These various types of receiver resources may be dynamically assigned to packets. In one design, receiver resource usage by each packet to be processed by the receiver may be estimated. The available receiver resources may be assigned to packets based on the estimated receiver resource usage by each packet and one or more assignment criteria such as priority, latency requirements, etc. The latency of each packet may be determined based on the receiver resource assignment. If the latency requirements of any packet are not met, then receiver processing may be skipped or deferred for one or more packets such that the latency requirements of each packet to be processed can be met. | 2008-09-25 |
20080232401 | LOGICAL AND TRANSPORT CHANNEL STRUCTURES FOR MOBILE WiMAX WIRELESS SYSTEMS - An embodiment of the present invention provides an apparatus, comprising a transceiver adapted to operate according to an Institute for Electronic and Electrical Engineers (IEEE) STD 802.16e-2005 or IEEE 802.16m standard and further adapted to use logical and transport/physical channelization. Furthermore, a virtual wideband RF channel concept (support of contiguous and non-contiguous RF bands in OFDMA and non-OFDMA wireless systems through aggregation of smaller RF bands) is also described herein, from which all wireless communication systems and standards can benefit. | 2008-09-25 |
20080232402 | COMMUNICATION RELAY APPARATUS, RESOURCE RELEASING METHOD, AND PROGRAM FOR COMMUNICATION RELAY APPARATUS - Suspendable candidate link group determining device | 2008-09-25 |
20080232403 | H-ARQ ACKNOWLEDGMENT DETECTION VALIDATION BY RE-DECODING - Systems and methodologies are described that facilitate reliably receiving a sequence of data packets in a wireless communications environment. In particular, mechanisms are provided that enhance hybrid automatic repeat request protocols through validation of acknowledgment message detection by re-decoding. A transmitter sends a data packet from a sequence of packets in one or more data transmissions. A receiver acknowledges the data packet upon obtaining sufficient transmissions to decode the packet. The receiver re-decodes a successive data transmission in combination with previously received transmissions to validate if the transmitter detected the acknowledgment. | 2008-09-25 |
20080232404 | DISCONTINUOUS RECEPTION OPERATION FOR CONSTANT DATA RATE SERVICE - The present invention relates to communicating between a network and a mobile terminal in a wireless communication system. The invention includes receiving a channel during a transmission time interval, and determining not to receive a transmission from the network for a predetermined amount of transmission time intervals related to the channel after receiving the channel. | 2008-09-25 |
20080232405 | Method and Circuit for Calculating a Timeout Parameter in a Communication Session - A method for calculating a timeout parameter in a communication session, comprises the steps of initiating a session; calculating a throughput of the connection during initialisation of the session by measuring a time span between sending and receiving a data packet on a target communication device | 2008-09-25 |
20080232406 | Optical continuum source including light generation beyond wavelength edges of continuum - An optical continuum source is formed that is used to generate both a continuum and one or more light peaks outside the bandwidth of the continuum. In particular, one or more fiber Bragg gratings exhibiting a resonant wavelength less than the short wavelength edge (or greater than the long wavelength edge) of a predetermined continuum are inscribed into a section of highly nonlinear fiber (HNLF) and used to generate the additional light peaks. Gratings may also be formed for areas along the fiber where the continuum spectral power density is essentially “zero”. It has been discovered that the use of a Bragg grating generates phase matching with the propagating optical signal, thus resulting in the creation of the additional peaks. | 2008-09-25 |
20080232407 | UTILIZATION OF YB: AND ND: MODE-LOCKED OSCILLATORS IN SOLID-STATE SHORT PULSE LASER SYSTEM - An optimized Yb: doped fiber mode-locked oscillator and fiber amplifier system for seeding Nd: or Yb: doped regenerative amplifiers. The pulses are generated in the Yb: or Nd: doped fiber mode-locked oscillator, and may undergo spectral narrowing or broadening, wavelength converting, temporal pulse compression or stretching, pulse attenuation and/or lowering the repetition rate of the pulse train. The conditioned pulses are subsequently coupled into an Yb: or Nd: fiber amplifier. The amplified pulses are stretched before amplification in the regenerative amplifier that is based on an Nd: or Yb: doped solid-state laser material, and then recompressed for output. | 2008-09-25 |
20080232408 | Method and apparatus for stabilizing and tuning the bandwidth of laser light - According to aspects of an embodiment of the disclosed subject matter, method and apparatus are disclose that ma y comprise adjusting a differential timing between gas discharges in the seed laser and amplifier laser for bandwidth control, based on the error signal, or for control of another laser operating parameter other than bandwidth, without utilizing any beam magnification control, or adjusting a differential timing between gas discharges in the seed laser and amplifier laser for bandwidth control, based on the error signal, or for control of another laser operating parameter other than bandwidth, while utilizing beam magnification control for other than bandwidth control, and adjusting a differential timing between gas discharges in the seed laser and amplifier laser for bandwidth control, based on the error signal, or for control of another laser operating parameter other than bandwidth, while utilizing beam magnification control for bandwidth control based on the error signal. | 2008-09-25 |
20080232409 | Tunable Laser - [Problems] To provide a tunable laser with high reliability and high performance, and of low cost. | 2008-09-25 |
20080232410 | METHODS, ARRANGEMENTS AND APPARATUS FOR UTILIZING A WAVELENGTH-SWEPT LASER USING ANGULAR SCANNING AND DISPERSION PROCEDURES - Exemplary systems and methods for filtering an electromagnetic radiation can be provided. For example, at least one first arrangement can be provided which is capable of receiving at least one first electro-magnetic radiation and forwarding at least one second electro-magnetic radiation at different angles with respect to a direction of incidence of the first electro-magnetic radiation. At least one second wavelength dispersion arrangement can be provided which is configured to receive the second electro-magnetic radiation, forward at least one third electro-magnetic radiation to the first arrangement and further receive at least one fourth electro-magnetic radiation. The third electro-magnetic radiation can be based on the second electro-magnetic radiation, and the fourth electro-magnetic radiation can be based on the third electro-magnetic radiation. For example, the second arrangement can be configured to forward the second electro-magnetic radiation at different angles with respect to a direction of incidence of the at least one particular electro-magnetic radiation. Exemplary embodiments of methods can be provided to implement such exemplary techniques. | 2008-09-25 |
20080232411 | Bragg Grating Structure - A Bragg grating has a local reflection strength which varies with position along the length of the grating so as to generate a non-uniform wavelength reflection spectrum, enabling compensation for a non-uniform gain profile of the gain section of a tunable laser. In another aspect, a Bragg comb grating is modulated by an envelope function which can also compensate for a non-uniform gain profile. The comb grating may be a phase change grating, with the envelope function shape being controlled by the length between phase changes and/or size of the phase changes. | 2008-09-25 |
20080232412 | Surface-Emitting Laser and Laser Projector - A surface emitting laser ( | 2008-09-25 |
20080232413 | Multiple Phonon Resonance Quantum Cascade Lasers - Quantum-cascade lasers are provided with an active section in which relaxation of carriers from a lower laser level is provided by three or more phonon-assisted transitions to levels within the active section whose energies are below the energy of the lower laser level. The gain region of the laser consists of alternating active and injector sections, with an injection barrier inserted between each injector section and the adjacent active section, and an exit barrier inserted between each active section and the adjacent injector section. The active section comprises a sufficient number of quantum wells separated by quantum barriers to produce the desired energy-level structure consisting of an upper laser level, a lower laser level, and at least three levels that have lower energies than the lower laser level, with the separation of adjacent energy levels below and including the lower laser level that are at least equal to the energy of the quantum well material's longitudinal optical phonon. | 2008-09-25 |
20080232414 | LIGHT EMITTING ELEMENT, METHOD FOR MANUFACTURING LIGHT EMITTING ELEMENT, LIGHT EMITTING ELEMENT ASSEMBLY, AND METHOD FOR MANUFACTURING LIGHT EMITTING ELEMENT ASSEMBLY - A method for manufacturing a light emitting element includes the steps of (A) forming sequentially a first compound semiconductor layer having a first conduction type, an active layer, and a second compound semiconductor layer having a second conduction type on a substrate, (B) forming a plurality of point-like hole portions in a thickness direction in at least a region of the second compound semiconductor layer located outside a region to be provided with a current confinement region, and (C) forming an insulating region by subjecting a part of the second compound semiconductor layer to an insulation treatment from side walls of the hole portions so as to produce the current confinement region surrounded by the insulating region in the second compound semiconductor layer. | 2008-09-25 |
20080232415 | LASER DIODE - A laser diode capable of operating at high temperature by preventing carrier overflow is provided. A laser diode includes an AlGaInP-based laminate configuration including at least a lower cladding layer, an active layer and an upper cladding layer in this order, wherein the AlGaInP-based laminate configuration receives a larger compressive stress than 2200 ppm from a stress source. | 2008-09-25 |
20080232416 | Light emitting device - A light emitting device includes a nitride semiconductor light emitting element provided with a group III nitride semiconductor laminating structure and a laser. The group III nitride semiconductor laminating structure has a non-polar plane or a semi-polar plane as a principal plane for crystal growth and includes a multiple-quantum well layer having a quantum well layer as an emission layer containing In and a barrier layer having a wider band gap than that of the quantum well layer. The laser generates induced emission light having a wavelength shorter than an emission wavelength of the quantum well layer and optically excites the quantum well layer in the nitride semiconductor light emitting element with the induced emission light. | 2008-09-25 |
20080232417 | SEMICONDUCTOR LIGHT EMITTING DEVICE AND FABRICATION METHOD FOR SEMICONDUCTOR LIGHT EMITTING DEVICE - A semiconductor light emitting device includes a lower cladding layer, an active layer, and an AlGaAs upper cladding layer mounted on a GaAs substrate. The semiconductor light emitting device has a ridge structure including the AlGaAs upper cladding layer. The semiconductor light emitting device further includes an InGaAs etching stop layer provided in contact with the lower side of the AlGaAs upper cladding layer. The InGaAs etching stop layer has a band gap greater than that of the active layer. | 2008-09-25 |
20080232418 | Surface Emitting Laser - A surface emitting laser includes a substrate, a first Bragg reflector layer formed on the substrate, an active layer formed on the first Bragg reflector layer and having a light-emitting region, a second Bragg reflector layer formed on the active layer to emit light from the surface in the direction of the optical axis (Z), and a light-scattering member for extracting light from the surface of the second Bragg reflector layer in a direction intersecting the optical axis. With this arrangement, the intensity of light emitted from the surface emitting laser in one direction can be monitored by a simple structure. | 2008-09-25 |
20080232419 | Laser array chip, laser module, manufacturing method for manufacturing laser module, manufacturing method for manufacturing laser light source, laser light source, illumination device, monitor, and projector - A laser array chip includes: a plurality of emission sections emitting laser lights; and a weak section formed in a portion in the thickness direction of at least a portion of the areas between the emission sections, whose strength is weaker than the strength of areas in which the emission sections are formed. | 2008-09-25 |
20080232420 | Light Emitting Diodes and Lasers Diodes with Color Converters - The present invention relates to a light emitting diode (LED) or a laser diode ( | 2008-09-25 |
20080232421 | Method and Apparatus for Forming a Plurality of Laser Beams With Ultraviolet Wavelength, and Laser Machining Apparatus - The invention provides a method and an apparatus for forming a plurality of ultraviolet-wavelength laser beams, and a laser machining apparatus, in which the machining efficiency can be improved due to easy maintenance and inspection while deterioration of wavelength conversion means can be prevented to reduce the running cost. A laser beam with a near infrared wavelength output from a laser oscillator is branched into a plurality of laser beams by a laser distribution unit. Each branched laser beam is partially converted into a laser beam whose wavelength is ½ of the near infrared wavelength by a wavelength converter. An ultraviolet laser beam whose wavelength is ⅓ of the near infrared wavelength of the laser beam is formed out of the branched laser beam and the laser beam with the wavelength which is ½ of the near infrared wavelength by another wavelength converter, both the branched laser beam and the laser beam with the wavelength which is ½ of the near infrared wavelength being output from the wavelength converter. The ultraviolet laser beam is extracted and supplied to a portion to be machined, by a wavelength separator. | 2008-09-25 |
20080232422 | Laser Radiation Source - A transmitter unit is described for an open path gas detector. The unit comprises: an enclosure having a window; and a coherent radiation transmitter, e.g. a tuneable laser diode transmitter, located within the enclosure and configured to direct a beam of radiation through the window. The window is slanted with respect to the axis of the beam emitted by the transmitter such that no radiation from the transmitter that is directly incident on the window is reflected by the window directly onto the transmitter. Thereby interference fringes within the emitted radiation are reduced. Alternatively, the window may be replaced by a lens followed by an aperture such that the beam emitted by the transmitter is focused onto the aperture, thereby forming a beam of radiation passing out of the enclosure. | 2008-09-25 |
20080232423 | Method, System and Process for Preparing a Recyclable Material - A method for preparing material comprising the steps of providing a transport vehicle including a horizontal ejector and a basin that defines an opening, wherein the horizontal ejector is coupled to the material within the basin; loading a first material into the basin proximate the horizontal ejector; loading a second material into the basin proximate the opening; actuating the horizontal ejector for movement from a retracted position toward a deployed position; and horizontally ejecting the second material through the opening and then subsequently horizontally ejecting the first material through the opening. A system is also disclosed. | 2008-09-25 |
20080232424 | Hearth plate including side walls defining a processing volume - A hearth plate ( | 2008-09-25 |
20080232425 | LOCATION DEPENDENT CALIBRATION FOR DISTRIBUTED TEMPERATURE SENSOR MEASUREMENTS - A method for calibrating distributed temperature sensing (DTS) systems is disclosed. The method includes: receiving temperature data associated with one or more locations along a length of an optical fiber; calculating a set of unique calibration coefficients specific to each of the one or more locations along the fiber length; and applying the set of calibration coefficients specific to each of the one or more locations along the fiber length to the temperature data for calibrated correction thereof. Also disclosed is a system for calibrating DTS data and a wellbore for providing calibrated DTS data. | 2008-09-25 |
20080232426 | System of Time-Temperature Integrators - Time-temperature integrators (TTIs) are useful for providing a means to monitor safety of fresh foods, particularly foods packaged in reduced-oxygen environments. TTIs of the present invention utilize Arrhenius-type curves to offer safety margins that satisfy regulator and shelf-life requirements. One method of using TTIs of the present invention involves using duel TTIs, one as a reference and one as a safety. | 2008-09-25 |
20080232427 | TEMPERATURE SENSITIVE LABEL FOR DETECTING TEMPERATURE CHANGES TO A TEMPERATURE SENSITIVE ITEM - A temperature sensitive label may be affixed to a temperature sensitive item. The temperature sensitive label conveys when the item has reached a tripping temperature. The tripping temperature may be a temperature at which the item is compromised. To convey this, the label changes properties and functions with a message to convey that the item has been exposed to the tripping temperature. For example, the label may reveal, block, or alter a message that conveys whether the item has been exposed to the tripping temperature. The message may be part of the label or separate from the label. | 2008-09-25 |
20080232428 | THERMOCOUPLE SHIELD - A thermocouple shield for use in radio frequency fields. In some embodiments the shield includes an electrically conductive tube that houses a standard thermocouple having a thermocouple junction. The electrically conductive tube protects the thermocouple from damage by an RF (including microwave) field and mitigates erroneous temperature readings due to the microwave or RF field. The thermocouple may be surrounded by a ceramic sheath to further protect the thermocouple. The ceramic sheath is generally formed from a material that is transparent to the wavelength of the microwave or RF energy. The microwave transparency property precludes heating of the ceramic sheath due to microwave coupling, which could affect the accuracy of temperature measurements. The ceramic sheath material is typically an electrically insulating material. The electrically insulative properties of the ceramic sheath help avert electrical arcing, which could damage the thermocouple junction. The electrically conductive tube is generally disposed around the thermocouple junction and disposed around at least a portion of the ceramic sheath. The concepts of the thermocouple shield may be incorporated into an integrated shielded thermocouple assembly. | 2008-09-25 |
20080232429 | ASEPTIC THERMOMETER STORAGE CASE - The invention describes and claims an apparatus and method of maintaining cleanliness of the thermometer storage case. The apparatus is an improved elongated end-loading storage case for thermometers. The improvement comprises two or more elongated sections of the case. Each section comprises a connection edge, an insertion tip, and a distal tip. The elongated sections of the case are detachably connected to each other to form a thermometer storage case that opens up to reveal the inner surface of the case for easy inspection and cleaning. The case comprises a fastener for fixating the case in the assembled case body position. The method of cleaning the thermometer storage case comprises the steps of unfastening and opening the case, inspecting and sanitizing the inside surface of the case, and then reconnecting and fixating the elongated sections to form the thermometer storage case. | 2008-09-25 |
20080232430 | Wireless transceiver and method for use therewith - A wireless transceiver includes a first integrated circuit and a second integrated circuit. The first integrated circuit includes a memory module that stores a plurality of operational instructions for implementing a plurality of protocol layers of a wireless protocol, a processing module that executes the plurality of operational instructions, and a first interface module. The second integrated circuit includes a second interface module that couples data to and from the first interface module, an RF transceiver that modulates a first baseband signal to produce a transmitted RF signal, and that demodulates a received RF signal to produce a second baseband signal, and a baseband module that generates the first baseband signal based on data received from the first interface module via the second interface module, and that generates data based on the second baseband signal to send to the first interface module via the second interface module. | 2008-09-25 |
20080232431 | Electronic key system and method - An in-vehicle LF transmitter transmits a synchronization signal to an in-vehicle RF receiver and transmits LF data (response request) including a synchronization signal to a portable device. The portable device performs RF data output and DSSS process and transmits RF data (response) subjected to spread process. The in-vehicle RF receiver receives the RF data and performs despread process. Both of the spread process of the portable device and the despread process of the in-vehicle RF receiver are performed by the use of a spread code the period of which is adjusted based on the synchronization signal transmitted from the in-vehicle LF transmitter. | 2008-09-25 |
20080232432 | NON-COHERENT TRANSMISSION METHOD FOR UPLINK CONTROL SIGNALS USING A CONSTANT AMPLITUDE ZERO-AUTOCORRELATION SEQUENCE - In one embodiment of the instant invention, a non-coherent transmission method for uplink control signals is provided. The transmission methodology uses a constant amplitude zero-autocorrelation (CAZAC) sequence for relatively short control signal lengths. The methodology includes creating a CAZAC sequence, truncating the CAZAC sequence into a plurality of segments; and transmitting each of the segments within a predetermined window of time. | 2008-09-25 |
20080232433 | SYSTEM AND METHOD FOR SHORT RANGE COMMUNICATION USING ADAPTIVE CHANNEL INTERVALS - A system and method for data transmission on wireless discontinuous channels including a control/safety information (CSI) channel having a duty cycle, and a plurality of service channels. The system and method include: evaluating channel utilization of one or more of the channels; calculating an optimal CSI channel duty cycle responsive to the channel utilizations; adjusting the duty cycle of the CSI channel to the calculated optimal CSI channel duty cycle; broadcasting the optimal CSI channel duty cycle; and transmitting data during the optimal CSI channel duty cycle. | 2008-09-25 |
20080232434 | Means for low probability of interception/detection underwater acoustic communications - A direct-sequence spread-spectrum communications method of de-spreading and decoding received data transmitted through an acoustic channel. A first code match filter is applied to received data to output a first code impulse response comprising a channel impulse response modulated by a pseudo-random number bit. A second code match filter is applied to the received data to output a second code impulse response comprising the channel impulse response modulated by a message symbol bit. The first code impulse response is correlated with the second code impulse response to output the message symbol bit modulated by the pseudo-random number bit. The pseudo-random number bit is eliminated to identify the message symbol bit, thereby decoding the message symbol bit from the received data. | 2008-09-25 |
20080232435 | Method and system for simulcasting - A method and system for simulcasting are provided. The method includes modulating a simulcast signal using 8-level modulation, increasing a spacing between signal pulses of the simulcast signal and spreading in time the signal pulses of the simulcast signal. The method further includes communicating a stretched modulated simulcast signal formed by increasing the time interval spacing and spreading in time the signal pulses. | 2008-09-25 |
20080232436 | Average power control of wireless transmission having a variable duty cycle - A method an apparatus for controlling a transmission signal power level of a transmitter is disclosed. The method includes receiving a root-mean-squared target power level. A duty cycle of a transmission signal is determined that indicates power on and power off periods over a predetermined sensing interval. A transmission signal power level is sensed. The transmission signal power level is adjusted to be approximately equal to the target power level divided by the duty cycle. | 2008-09-25 |
20080232437 | Base Station Transmitter For Mobile Telecommunication System, Method For That System - The present invention relates to a transmit diversity method of a mobile communication system and a base station transmitting apparatus using the same. A first code and a second code that is diversity-encoded from the first code are generated, and transmit symbols are spread with the first code and the second code. A first transmit symbol spread with the first code and a second transmit symbol spread with the second code are mapped to symbols in frequency and time domains in a frame and transmitted through antennas. Therefore, various diversity techniques can be provided to the mobile communication system, and the diversity technique is not restricted to symbols transmitted to the same mobile station and can also be applied to a 1-bit channel. | 2008-09-25 |
20080232438 | 2D Rake Receiver For Use in Wireless Communication Systems - A 2D Rake receiver is proposed, comprising: a control module, for generating, according to a reference signal and the radio signals received by a plurality of antenna elements, the multipath information about the radio signals; a weight factor calculating unit, for calculating the corresponding weight factors of the received radio signals corresponding to different antenna elements according to the multipath information; a plurality of 1 D Rake receivers, each of which is for receiving radio signals from the corresponding antenna element and weighting the radio signals received by the Rake receiver with the corresponding weight factor; a combining unit, for combing the weighted radio signals outputted from the plurality of 1 D Rake receivers, to output a combined signal. | 2008-09-25 |
20080232439 | Adaptive equalizer for communication channels - Adaptive equalizers for a communication channel and corresponding methods of equalizing are described. The adaptive equalizer includes: a fixed pre-filter configured to be coupled to a received signal and provide a pre-filter signal; an adaptive filter coupled to and configured to compensate the pre-filter signal for changes in phase and amplitude; and an interference remover coupled to the adaptive filter and configured to reduce interference in the received signal. | 2008-09-25 |
20080232440 | CHIP BLANKING AND PROCESSING IN SCDMA TO MITIGATE IMPULSE AND BURST NOISE AND/OR DISTORTION - A system for mitigating impairment in a communication system includes a delay block, a signal level block, a moving average window block, an impulse noise detection block, and a combiner. The delay block receives and delays each chip of a plurality of chips in a spreading interval. The signal level block determines a signal level of each chip of the plurality of chips in the spreading interval. The moving average window block determines a composite signal level for a chip window corresponding to the chip. The impulse noise detection block receives the signal level, receives the composite signal level, and produces an erasure indication for each chip of the plurality of chips of the corresponding chip window. The combiner erases chips of the plurality of chips of the spreading interval based upon the erasure indication. | 2008-09-25 |
20080232441 | Method of processing a digital signal derived from an analog input signal of a GNSS receiver, a GNSS receiver base band circuit for carrying out the method and a GNSS receiver - An acquisition unit of a GNSS receiver base band circuit comprises a correlator ( | 2008-09-25 |
20080232442 | Method of transmitting data in a communication system - A method of processing a signal received at a node in a network, comprising the steps of; receiving the signal at the node; determining characteristics of a first part of the signal; determining characteristics of a second part of the signal that is subsequent to the first part of the signal; quantifying an effect on the signal caused by applying an action to the first part of the signal, based on characteristics of the first part of the signal; quantifying an effect on the signal caused by not applying the action on the first part of the signal, based on characteristics of the second part of the signal; applying the action to the first part of the signal if it is determined that the effect on the signal caused by applying the action to the first part of the signal is less detrimental to at least one measure of the signal quality than the effect on the signal caused by not applying the action to the first part of the signal. | 2008-09-25 |
20080232443 | SIGNAL GENERATING APPARATUS - A signal generating apparatus for generating a synthesized signal according to an input signal is provided. The signal generating apparatus includes a phase-locked loop device and a control unit. The phase-locked loop device has a phase/frequency detector for generating a detected signal according to a reference oscillating signal and a feedback signal, a control signal generator for generating a control signal according to the detected signal, a voltage controlled oscillator for generating the synthesized signal according to the control signal, and a divider for dividing the synthesized signal according to a dividing factor to generate the feedback signal. The control unit is for controlling the control signal generator to adjust the control signal in a calibration mode to thereby adjust a frequency of the synthesized signal. The phase/frequency detector does not output the detected signal to the control signal generator in the calibration mode. | 2008-09-25 |
20080232444 | Impulse Noise Management - Evaluation of the impact of impulse noise on a communication system can be utilized to determine how the system should be configured to adapt to impulse noise events. Moreover, the system allows for information regarding impulse noise events, such as length of the event, repetition period of the event and timing of the event, to be collected and forwarded to a destination. The adaptation can be performed during one or more of Showtime and initialization, and can be initiated and determined at either one or more of a transmitter and a receiver. | 2008-09-25 |
20080232445 | Multi-cell data processor - The exemplary embodiments of this invention provide a data processor having a processor engine composed of a plurality of processor cells, each cell including a local instruction memory and an instruction sequencer and being configured for selective connection with at least one adjacent cell enabling communication between cells. The processor engine is configured to be interposed between a radio frequency section and a baseband section to process data output from the baseband section prior to inputting the processed data to the radio frequency section, and to process signals output from the radio frequency section prior to inputting processed data to the baseband section. A plurality of communication-related functions are mapped into a corresponding plurality of regions of cells, and local instruction memory is configured to store program instructions for implementing all or a part of the associated function. As examples, one function may be a CORDIC function and another function may be a FIR filter function. | 2008-09-25 |
20080232446 | METHOD AND SYSTEM FOR MATCHING AN INTEGRATED FM SYSTEM TO AN ANTENNA UTILIZING ON-CHIP MEASUREMENT OF REFLECTED SIGNALS - Aspects of a method and system for matching an integrated FM system to an antenna utilizing on-chip measurement of reflected signals are provided. In this regard a portion of a signal output by an integrated FM radio transmit block and reflected by an antenna may be routed to an on-chip signal analyzer. Accordingly, measurements of the reflected signals may be utilized to configure a matching network in order to provide a best impedance match between the FM radio and the antenna. In this regard, a best impedance match may maximize radiation efficiency and/or radiated power. Additionally, the configuration of the matching network may incorporate a correction algorithm/offset experimentally determined via a calibration utilizing external components. | 2008-09-25 |
20080232447 | METHOD AND SYSTEM FOR CALIBRATION IN AN FM TRANSCEIVER SYSTEM - Aspects of a method and system for calibration in an FM transceiver system may include: in an integrated FM system comprising an FM radio transmitter, an FM radio receiver and a common local oscillator, generating via the common local oscillator, one or more RF carrier signals and corresponding phase-shifted versions of the generated one or more RF carrier signals. The FM radio transmitter and/or the FM radio receiver may be calibrated based on an RF calibration signal generated from the one or more RF carrier signals and/or the corresponding phase-shifted versions of the generated one or more RF carrier signals. A phase between the one or more RF carrier signals and the corresponding phase-shifted versions of the generated one or more RF carrier signals may be adjusted based on the generated RF calibration signal. An in-phase baseband signal component associated with the generated RF calibration signal may be zeroed. | 2008-09-25 |
20080232448 | METHOD AND SYSTEM FOR OPTIMIZING AN FM TRANSMITTER AND FM RECEIVER IN A SINGLE CHIP FM TRANSMITTER AND FM RECEIVER SYSTEM - Methods and systems for optimizing an FM transmitter and FM receiver in a single chip FM transmitter and receiver are disclosed and may include receiving an FM signal from each of multiple selected antenna configurations. The received signal strength obtained for each configuration may be measured and stored in a memory, and FM signals may be transmitted and/or received utilizing a configuration that generates a received signal strength above a desired threshold from the measurement. The FM transmitter and receiver may be integrated on-chip, and may be impedance matched to the antennas utilizing selectable capacitors integrated on-chip and/or off-chip and selectable inductors located off-chip. The multiple antennas may comprise antennas that are internal and antennas that are external to the wireless device, each of which may be tuned for one or more wireless protocols. One or more of the antennas may comprise metal components within the wireless device. | 2008-09-25 |
20080232449 | Efficient uplink feedback in a wireless communication system - A method for transmitting control information by transmitting a reference signal from a first transceiver to a second transceiver, in response to the reception of the reference signal, determining at the second transceiver a plurality of control channel elements based upon the received reference signal, jointly encoding the plurality of control channel elements at the second transceiver to generate a control signal, and transmitting the control signal from the second transceiver to the first transceiver. | 2008-09-25 |
20080232450 | METHOD AND APPARATUS FOR ROBUST FREQUENCY EQUALIZATION - In frequency equalization, a received signals goes through frequency transform, the transformed signal is divided by a frequency transform of a channel response a method for equalization. The method comprises the step of: adjusting a quotient of the division by a weight function, wherein the function varies under a set of conditions; whereby for a frequency selective channel, deep fades are adjusted, and noise or interference are reduced. | 2008-09-25 |
20080232451 | METHOD AND APPARATUS FOR EQUALIZATION OF FAST CHANGING CHANNELS IN A TDS-OFDM SYSTEM - A method for channel equalization is provided. The method comprises the steps of: subdividing a received symbol portion into segments wherein each segment is associated with a known, segmented channel characteristic among a set of segmented, known channel characteristics spanning the received symbol. | 2008-09-25 |
20080232452 | Parameterized filters and signaling techniques - Filter taps for filters are specified by filter coefficient parameters. The filter taps are greater in number than the coefficient parameters from which the filter taps are calculated. For example, two coefficient parameters are used to specify a four-tap filter. Filter information can be signaled in a bitstream, such as by signaling one or more family parameters for a filter family and, for each filter in a family, signaling one or more filter tap parameters from which filter taps can be derived. Family parameters can include a number of filters parameter, a resolution parameter, a scaling bits parameter, and/or a full integer position filter present parameter that indicates whether or not the filters include an integer position filter. Filter parameters can be signaled and used to determine coefficient parameters from which filter taps are calculated. | 2008-09-25 |
20080232453 | Combining least squares and least mean squares algorithms to determine equalizer tap values - A method of operating an equalizer includes combining a Least Mean Squares (LMS) algorithm and a Least Squares (LS) algorithm to determine a set of equalizer tap values to be used in processing a signal. A channel impulse response (CIR) is computed, and an equalizer taps interval is then determined based on the CIR. The LS algorithm is used to determine a set of equalizer major taps based on the interval, and the LMS algorithm is used to determine a set of equalizer minor taps based on the interval. | 2008-09-25 |
20080232454 | DECISION FEEDBACK EQUALIZATION WITH FRACTIONALLY-SPACED FEEDBACK DATA - A decision feedback equalizer (DFE) architecture uses feedback samples that are over-sampled with respect to the symbol rate. On-baud feedback samples are quantized with a slicer, while off-baud samples are linear, IIR samples. Both forward and feedback filters are fractionally-spaced, but adapted only at the baud instances. | 2008-09-25 |
20080232455 | Maximum likelihood decoder for pulse and amplitude position modulation multi-source system - The present invention concerns a sphere decoder for maximum likelihood receiver intended to receive M-PPM-M′-PAM symbols at M modulation positions and at M′ amplitude levels from a plurality P of sources. The sphere decoder uses a Schnorr-Euchner type enumeration adapted to classify the points of a multidimensional PPM-PAM modulation. | 2008-09-25 |
20080232456 | ENCODING APPARATUS, ENCODING METHOD, AND COMPUTER READABLE STORAGE MEDIUM STORING PROGRAM THEREOF - An encoding apparatus holds predetermined encoding conditions (sets of a sampling frequency and a bit rate) associated with predetermined ranges having consecutive possible amounts of free space in the storage | 2008-09-25 |
20080232457 | BANDWIDTH SENSITIVE DATA COMPRESSION AND DECOMPRESSION - Data compression and decompression methods for compressing and decompressing data based on an actual or expected throughput (bandwidth) of a system. In one embodiment, a controller tracks and monitors the throughput (data storage and retrieval) of a data compression system and generates control signals to enable/disable different compression algorithms when, e.g., a bottleneck occurs so as to increase the throughput and eliminate the bottleneck. | 2008-09-25 |
20080232458 | Method and system for video encoding using noise level estimates from vertical blanking interval TV lines - A system and method for video encoding using noise level estimates from vertical blanking interval lines. A video signal may be received by an encoding system. Information may be extracted from the video signal and may be analyzed. The extracted information may be vertical blanking intervals. The extracted and analyzed information may be utilized to estimate a noise level of the video signal. The estimated noise level may then be utilized in encoding the video signal by being inserted into the video signal or used to change parameters used in video encoding. | 2008-09-25 |
20080232459 | SYSTEM AND METHOD TO CONTROL COMPRESSED VIDEO PICTURE QUALITY FOR A GIVEN AVERAGE BIT RATE - Picture level rate control systems, apparatuses and methods are described which indirectly control bit rate through peak signal to noise ratio (PSNR), thereby providing a stable PSNR while maintaining a given target average bit rate. In a preferred implementation, encoding is performed in conjunction with macroblock QP modulation. In this way, the picture level rate control provides stable temporal quality and the macroblock QP modulation provides stable spatial quality. By way of example, the number of bits generated in a group of pictures (GOP) is controlled by modulating the target bit allocation for a group of pictures (GOP) based on coded picture buffer (CPB) fullness. Macroblocks are encoded for each picture based on a rate-distortion model, which is modified in response to the relative fluctuation of PSNR of pictures within a group of pictures. | 2008-09-25 |
20080232460 | Video decoder with adaptive outputs - In one aspect, there is provided a video decoder including a first write port to write uncompressed video data to a first buffer in a first format adapted based on a format required by the video decoder. The video decoder also includes a second write port to write uncompressed video data to a second buffer in a second format adapted to provide the uncompressed video data for subsequent processing external to the video decoder. | 2008-09-25 |
20080232461 | Multi-Decoder and Method - A multi-decoder includes a plurality of decoders for different types of coding, an output buffer which stores and outputs the decoded output signal output from the decoders, an output switcher which selectively outputs the decoded output signal of the output buffer, and a controller which determines a coding scheme of the stream based on data of the header area of a stream inputted to each of the decoders, and outputs the stream to the corresponding decoder based on the determination result, and controls the output switcher to switch a decoded output signal of a sender to another decoded output signal, when inputting a stream switching signal. | 2008-09-25 |
20080232462 | Method Video Encoding and Decoding Preserving Cahe Localities - The invention relates to a method for encoding/decoding a video stream including a plurality of images (A, B, C) in a video processing apparatus having a processing unit ( | 2008-09-25 |
20080232463 | Fast Intra Mode Prediction for a Video Encoder - There are provided video encoders and corresponding methods for encoding video data for an image that is divisible into macroblocks. A video encoder includes an encoder for performing inta mode selection when encoding a current macroblock by testing a first subset of intra modes to compute a rate distortion cost, and utilizing the rate distortion cost to determine whether to terminate the intra mode selection and which additional intra modes, if any, are to be examined with respect to the current macroblock. | 2008-09-25 |
20080232464 | Transcoding system using encoding history information - The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder. | 2008-09-25 |
20080232465 | SYSTEM AND METHOD OF FAST MPEG-4/AVC QUANTIZATION - A system and method for coding moving pictures according to MPEG-4/AVC is described which performs rapid quantization of the transformed residue signal is described. The system and method may employ a number of techniques, which may be considered separately or in combination, including: extreme macroblock (MB) analysis, pre-execution table generation, conditional skipping, and picture level scaling. For example, MBs are detected wherein the quantization scale is adapted prior to quantization processing. The quantization process can be skipped for DCT coefficients which do not meet a threshold criterion. Weighted quantization can be readily performed in response to generating sets of scaled quantization tables in the beginning of encoding each picture, wherein the quantization scale of the DCT coefficients need not be scaled in response to position. | 2008-09-25 |
20080232466 | Encoding Parameter Determination For a Hybrid Encoding Scheme - A method for determining an order of values for an encoding parameter of a hybrid encoding scheme for each frame of a frame sequence for use for encoding the frame sequence by means of the hybrid encoding scheme is described. Using the hybrid encoding scheme, resulting distortions and compression rates for the frames of the frame sequence are established for the case of the complete encoding of the frame sequence, and for the case of the incomplete encoding of a real partial sequence of the frame sequence. Thereupon, establishing of estimated distortions and compression rates for frames of the frame sequence takes place, followed by determining the order of values for the encoding parameter of the hybrid encoding scheme based on the established resulting and estimated distortions and compression rates. | 2008-09-25 |
20080232467 | Image Decoding Method - There is provided an image decoding method for decoding a picture to be decoded by referencing an appropriate picture even when random access reproduction is performed. The method includes: a first storage step (S | 2008-09-25 |
20080232468 | METHOD AND APPARATUS FOR ADAPTIVE GOP STRUCTURE DETERMINATION - A video encoder, determining a Group of Picture (GOP) structure and a method thereof. The video encoder comprises an input frame buffer, an I-frame module and a P-frame module. The input frame buffer receives and stores input frames. The I-frame module coupled to the input frame buffer identifies an I-frame based on a correlation between two consecutive input frames to obtain the GOP size. The P-frame module coupled to the input frame buffer and the I-frame module, determines P-frames in the GOP having the GOP size based on the GOP rate. | 2008-09-25 |
20080232469 | Rate Control for a Multimedia Compression and Encoding System - A rate controller for allocating a bit budget for video frames to be encoded is disclosed. The rate controller of the present invention considers many different factors when determining the frame bit budget including: desired video quality, target bit rate, frame type (intra-frame or inter-frame), frame duration, intra-frame frequency, frame complexity, intra-block frequency within an intra-frame, buffer overflow, buffer underflow, and the encoded video frame quality for a possible second pass. | 2008-09-25 |
20080232470 | Method of Scalable Video Coding and the Codec Using the Same - Since joint scalable video coding (JSVC) adopts a scheme in which numbers are assigned to all of the pictures according to the order in which the pictures are displayed, it is difficult to detect a drop (or loss) of a key picture and thus it is difficult to effectively take action against an error caused by the loss of the key picture. The present invention provides a coding method of detecting a loss of a key picture by numbering key pictures in JSVC in which predictive (P) pictures have a closed-loop structure and of effectively taking action against an error in the case of a loss of a key picture, and a codec using the coding method. The SVC method includes performing encoding while assigning a number to a key picture of an upper layer and performing decoding with respect to the number-encoded current key picture of the upper layer using data of a decoded image of a picture of a lower layer that is temporally matched with the current key picture of the upper layer when a loss of a key picture between the number-encoded current key picture of the upper layer and a previous key picture that is number-encoded prior to the current key picture is detected. Therefore, it is possible to effectively take action against to an error caused by a loss of a key picture by detecting the loss of a key picture during decoding by encoding using numbering of key pictures in JSVC in which closed-loop coding is performed by consecutively predicting key pictures. Moreover, it is possible to minimize degradation in image quality by concealing an error caused by an incorrect reference by using data of a decoded image of a corresponding picture of a lower base layer when a key picture of an upper layer is lost in an environment where transmission of the lower base layer is guaranteed with a video stream having a multi-layered structure. | 2008-09-25 |
20080232471 | Efficient Implementation of H.264 4 By 4 Intra Prediction on a VLIW Processor - This invention is useful in video compression standards support a rich set of intra prediction modes. This invention a unique table creation and lookup approach to software pipeline the prediction process for all pixels within a block. The table stores constant data and pointer data into a neighbor pixel table. Indexing into the table based upon the current intra prediction mode for each pixel of a block recalls constant data and other pixel data for calculation of an intra prediction value. | 2008-09-25 |
20080232472 | METHOD AND APPARATUS FOR TRANSMITTING PACKET-BASED IMAGE FRAME - A method and apparatus for transmitting a packet-based image frame, the method including: dividing an input image into intra and inter prediction frames and encoding the intra and inter prediction frames; applying different error resilience algorithms to the intra and inter prediction frames; and performing forward error correction (FEC) on the intra and inter prediction frames according to the corresponding error resilience algorithms. According to aspects of the present invention, optimal error correction may be performed in accordance with characteristics of frames when image data is transmitted. Thus, a strong image streaming service for preventing errors of a mobile environment may be implemented simply and efficiently. | 2008-09-25 |
20080232473 | Method for Encoding Interlaced Digital Video Data - Interlaced video can be encoded in two layers, base layer and enhancement layer. A method for optimizing the encoding of motion vectors for enhancement layer is proposed. It comprises defining various different ways to encode the motion vectors, estimate the coding costs for each way, and select the way with the lowest coding cost. The various ways to encode enhancement layer motion vectors can be combined. Either motion vectors from base layer are reused, resulting in a scaling factor and an update vector, or new motion vectors are calculated. Either forward or backward or bi-directional prediction can be used. Either one frame or multiple frames can be taken as reference. The reference frame can be from the enhancement layer, base layer or both. Either the complete motion vectors are encoded, or only the difference between the motion vector and the corresponding BL motion vector is encoded. | 2008-09-25 |
20080232474 | BLOCK MATCHING ALGORITHM OPERATOR AND ENCODER USING THE SAME - Provided are a block matching algorithm (BMA) operator and an encoder, in which Sum of Absolute Differences (SAD) data is obtained by performing a BMA operation in a parallel manner, encoding in real time is performed using a search range of ±32 or more, and moving image data is compressed at a high rate by using such a wide search range. | 2008-09-25 |
20080232475 | VIDEO ENCODING AND DECODING - A method for encoding video with a two-dimensional (2D) transform separable to two one-dimensional ( | 2008-09-25 |