38th week of 2009 patent applcation highlights part 24 |
Patent application number | Title | Published |
20090232132 | COMMON MOBILITY MANAGEMENT PROTOCOL FOR MULTIMEDIA APPLICATIONS, SYSTEMS AND SERVICES - A framework of a common mobility management protocol for Q.5/16 includes a high level protocol for performing the functions of address resolution, routing, location update and authentication. The common mobility management protocol can be used by existing and future multimedia applications (MA's) to support mobility management for messaging among mobility management authentication function (AuF), home location function (HLF) and visitor location function (VLF) databases/servers, and the corresponding multimedia application functional entities (MAFEs) of the multimedia applications (MA's). The common mobility management protocol may replace, act in concert with or in sequence with existent interworking protocols for the various multimedia applications. Reference point architectures, functional characteristics, features, and capabilities of the protocol are described including call flows and message syntax. The disclosure presents the scope of Q.5/16 and how H.MMS.1 (H.323 Mobility), H.MMS.2 (Global Mobility), and H.MMS.3 (Presence/Instant Messaging Mobility) can be a part of the same common mobility management protocol. | 2009-09-17 |
20090232133 | Ethernet access device and method thereof - The present invention discloses an Ethernet access device and method thereof. The device includes at least two downlink physical port units, a multiplex/demultiplex unit and an uplink physical port unit. The downlink physical port unit is adapted to convert between a low-speed physical layer signal input to/output from the access device and a low-speed physical layer load carried therein; the uplink physical port unit is adapted to convert a high-speed physical layer signal input to/output from the access device and a high-speed physical layer load carried therein; and the multiplex/demultiplex unit is adapted to multiplex and demultiplex between the low-speed physical layer load of the downlink physical port unit and the high-speed physical layer load of the uplink physical port unit. | 2009-09-17 |
20090232134 | INDIRECT ADDRESS CONNECTION SERVICE OVER AN EXTENDED NETWORK - Indirect network address server, comprising a store ( | 2009-09-17 |
20090232135 | RECEIVING APPARATUS AND RECEIVING METHOD - A receiving unit receives a group of packets transmitted from a transmitting apparatus. A detecting unit detects a missing packet based on the received group of packets. A first output unit outputs data corresponding to the group of packets, irrespective of a result of the detection by the detecting unit. A transmitting unit transmits a retransmission request for the missing packet to the transmitting apparatus. A re-receiving unit receives the missing packet retransmitted from the transmitting apparatus in response to the retransmission request. A second output unit outputs data corresponding to the group of packets and the retransmitted packet. | 2009-09-17 |
20090232136 | Method and Apparatus for Scalable Protocol Snooping in a Pon - In various example embodiments, a system, method and apparatus are provided for scalable protocol snooping in a PON. In an example embodiment, a method is provided. The method may include receiving a control packet on a network. The method may further include snooping the control packet. The method may also include duplicating the control packet to produce a duplicate control packet. Additionally, the method may include transmitting the control packet and a duplicate control packet to an external network. Moreover, the method may include processing the control packet. In another example embodiment, a method is presented. The method may include receiving a control packet. The method may also include receiving a duplicate control packet on a dedicated port. The method may further include snooping the control packet and the duplicate control packet. Also, the method may include passing the control packet on to an external network. Furthermore, the method may include processing the duplicate control packet. | 2009-09-17 |
20090232137 | System and Method for Enhancing TCP Large Send and Large Receive Offload Performance - A system and method for enhancing TCP large send and large receive offload performance are disclosed. A method may include: (a) receiving from a particular sender one or more incoming packets, each incoming packet having control information indicating a source node and a destination node for that packet; (b) determining the source node and the destination node of each incoming packet based on the control information of each packet; (c) determining a number of successive incoming packets that have the same source node and the same destination node; (d) determining whether the number of successive incoming packets having the same source node and the same destination node is greater than a predetermined minimum threshold; and (e) pausing transmission of packets from one or more senders other than the particular sender if the number of successive incoming packets having the same source node and destination node is greater than the predetermined minimum threshold. | 2009-09-17 |
20090232138 | INFORMATION PROCESSING SYSTEM, TUNNEL COMMUNICATION DEVICE, TUNNELL COMMUNICATION METHOD, PROXY RESPONSE DEVICE, AND PROXY RESPONSE METHOD - Provided is an information processing system and the like that can make a communication between plural information processing devices belonging to different LANs. A first tunnel communication device includes a first address correlating information memory unit that stores information for correlating an address in a first LAN with an address in a second LAN, a first address translating unit that translates an address of a packet on the basis of the correlating information, a first P2P communication setup unit that sets up a P2P communication with a device as a destination, and a first tunnel communication unit that makes a tunnel communication through a path of a P2P communication. The packet transmitted from a first information processing device is translated in address, is encapsulated, and is then transmitted through the path of the P2P communication. The packet transmitted from the device as a destination is decapsulated, is translated in address, and is then transmitted to the first information processing device. | 2009-09-17 |
20090232139 | MULTIPLE VIRTUAL LOCAL AREA NETWORK DATABASES IN A SWITCH WITH A RELATIONAL LOOKUP ENGINE - An apparatus and method for transferring data through a network switch. The network switch comprises a plurality of ports each having at least one port identifier and associating with at least one virtual local area network (VLAN) database, and a relational lookup engine storing a plurality of relations between at least one media access control (MAC) address and the at least one port identifier. At least one port receives a frame of data comprising a destination MAC (DMAC) address and the relational lookup engine uses the DMAC address to retrieve an associated port identifier that identifies a port to which the frame is forwarded. A source MAC (SMAC) address of the frame is used to produce an input relation for the relational lookup engine to identify the associated port identifier that identifies the port that received the frame of data for learning associations between the ports and MAC addresses. | 2009-09-17 |
20090232140 | PACKET TRANSMISSION APPARATUS AND METHOD - A packet transmission apparatus includes a transmission unit dividing input data and transferring segments, which are obtained by adding sequence numbers to the respective pieces of the divided data, a switch unit transferring the segments to one of a plurality of reception units, and a reception unit reconstructing an original input packet from the plurality of segments that arrive from the switch units on the basis of the sequence numbers. The reception unit includes a packet buffer storing segments that arrive from the switch units, a determination unit determining, on the basis of the sequence number, whether the segment stored in the packet buffer is to be discarded; and a discard part reading the segment stored in the packet buffer in an order from the segment having an older sequence number and discarding the segment that is determined to be discarded. | 2009-09-17 |
20090232141 | Using a Hash Value as a Pointer to an Application Class in a Communications Device - Systems and methods according to the present invention provide techniques for improving the efficiency of routing for requests in devices, e.g., mobile devices. | 2009-09-17 |
20090232142 | METHODS AND APPARATUS FOR USING CONNECTION IDENTIFIERS HAVING DIFFERENT PRIORITIES AT DIFFERENT TIMES - Methods and apparatus related to scheduling and/or utilization of air link traffic resources are described. A connection identifier is associated with priority with regard to use of an air link resource, e.g., a peer to peer traffic segment which is in contention. A particular connection may acquire and hold one or multiple connection identifiers. In some embodiments, the priority associated with a particular connection identifier is intentionally varied in a set of traffic slots. In some such embodiments, there is priority randomization from slot to slot. In one such implementation there is a statistically uniform average priority between the different connection identifiers over the recurring structure. Such an implementation facilitates access to traffic segments to a wide range of users, yet allows for differentiation with regard to the amount of access as a function of the number of connection identifiers being held by a particular connection. | 2009-09-17 |
20090232143 | METHODS AND APPARATUS FOR USING MULTIPLE CONNECTION IDENTIFIERS BASED ON TRAFFIC REQUIREMENTS - Methods and apparatus related to scheduling and/or utilization of air link traffic resources are described. A peer to peer connection holds a set of multiple connection identifiers for a plurality of successive traffic slots. Corresponding to a particular traffic slot, each of the connection identifiers in the set of connection identifiers has a different priority. Short term traffic needs are considered in the use of the multiple connection identifiers being held. For example, a communications device, corresponding to a peer to peer connection which is associated with a plurality of connection identifiers having different priorities, considers the amount and/or latency requirements of data to be transmitted at any given time when selecting which connection identifier to use when transmitting a traffic transmission request for a traffic segment which is in contention. | 2009-09-17 |
20090232144 | NETWORK INTERMEDIATE APPARATUS AND METHOD FOR UBIQUITOUS NETWORK AND UBIQUITOUS NETWORK SYSTEM USING THE INTERMEDIARY APPARATUS - Discloses is an ubiquitous network intermediate apparatus and intermediate method that supports various internet services in order that wired terminals can connect to the network without an additional network setting. An ubiquitous network intermediate apparatus according to the present invention comprises a terminal access device outputting a packet received from a terminal according to a source IP address of the packet to a preset virtual path, and outputting a response packet received through the virtual path to the terminal; and a home access device outputting the packet received from the terminal access device through the virtual path to a home router, and transmitting the response packet received from the home router to the terminal access device through the virtual path according to a destination IP address. | 2009-09-17 |
20090232145 | INTERNET/INTRANET ACCESS MECHANISM - A method connects one of several customer premises equipment (CPE) via an ATM network to one of several service providers (SP). Each CPE is connected to the ATM network via a corresponding network termination point (NT). There is an access server function (ASF), having a permanent virtual connection (PVC) to each NT and a connection to each SP. A tunneling protocol is established on the permanent virtual connection between each NT and the ASF. The tunneling protocol is able to support an integrated signaling protocol. The CPE or its user select selects an appropriate SP by using the integrated signaling protocol. Routing from the CPE to the selected SP is performed by the ASF. The ASF connects the CPE to the selected SP using the integrated signaling protocol. | 2009-09-17 |
20090232146 | SYSTEM COMPRISING NODES WITH ACTIVE AND PASSIVE PORTS - A data processing system comprising a plurality of interconnected nodes ( | 2009-09-17 |
20090232147 | Method for Forwarding Signalling Data in an Interworking Unit and in a Control Unit and Coprresponding Devices - The embodiments relates to, among other things, a network interface unit (IM-MGW) in which signaling data is separated from useful data by the values of received data. The signaling data is tunneled to a control unit (MGCF). Two different data transmission networks (CS, IMS) can thus be simply combined, in particular, for video telephony. | 2009-09-17 |
20090232148 | COMMUNICATION SYSTEM - A packet communication system of this invention includes a user access device at a user point for providing a user with connectivity to a plurality of carriers, carrier communication networks linked to the user access device, and a carrier management network which controls and manages the user access device and communication devices. A communication device receives a control frame-inserting command from the carrier management network, and sends a control frame containing therein control frame transfer information that indicates which one of termination and send-back processing is performed at a destination device. In response to receipt of the control frame, a user access device that is the destination of this frame extracts therefrom the control frame transfer information. If this information indicates the termination then perform termination; if send-back, add thereto a header necessary for the send-back and then transfer it. | 2009-09-17 |
20090232149 | COORDINATED MULTI-NETWORK DATA SERVICES - Content and/or services are provided for a session to a user by controlling use of at least two different networks to deliver the content and/or services for the session to the user. The at least two different networks have different data transfer characteristics. Control of use of the at least two different networks is based on the data transfer characteristics of the at least two different networks and characteristics of the content and/or services for the session to the user. | 2009-09-17 |
20090232150 | SERVICE EDGE PLATFORM ARCHITECTURE FOR A MULTI-SERVICE ACCESS NETWORK - A service edge node for a multi-service access (MSA) network is provided. The service edge node includes a line card, numerous service cards, a control system, and switching fabric. The line card receives packets from an access network and removes framing information from the packets to provide raw packets. For each of the packets, the raw packet from the line card is directed to one of the service cards. In one embodiment, each of the service cards is dedicated to a particular logical channel, and the line card is configured to direct the packets based on the logical channels. In another embodiment, each of the service cards is dedicated to a particular traffic type, and the line card directs the raw packets to the service cards based on a preconfigured table from the control system defining the traffic type of each of the service cards. | 2009-09-17 |
20090232151 | MULTI-RATE BACKPLANE TRANSCEIVER - An apparatus is disclosed that includes first transceiver circuitry adapted for transmitting and receiving Ethernet data over a network using a first Ethernet communication protocol at a first data rate, second transceiver circuitry adapted for transmitting and receiving Ethernet data over a network using a second Ethernet communication protocol at a second data rate; and third transceiver circuitry adapted for transmitting and receiving Ethernet data over a network using a third Ethernet communication protocol at a third data rate. | 2009-09-17 |
20090232152 | METHOD AND APPARATUS FOR AGGREGATING PORTS - A method for aggregating ports includes: when creating a static link aggregation group (LAG) at the local end, judging whether a port receives an aggregation packet sent from the peer end; if yes, determining the state of the port according to the Link Aggregation Control Protocol (LACP); otherwise, maintaining the state of the port carrying services. An apparatus for aggregating ports includes a static port aggregation processing unit, an opposite state detecting unit and a port state setting unit. The present invention can create a static LAG without any impact on the original services of ports, and can speed up changing the state of the opposite end and shorten the duration of the impact on services when deleting a static LAG or a member port thereof. | 2009-09-17 |
20090232153 | COMMUNICATION CHANNEL ESTABLISHMENT METHOD AND SYSTEM - The present invention provides a communication channel establishment method that establishes a communication channel used particularly when a cipher communication is carried out. Where a packet indicative of an ISAKMP message transmitted from a second communication device to a first communication device is awaited when a communication channel between the first and second communication devices is established via an IP network, the time taken to wait for the packet is counted by a corresponding packet waiting timer at random intervals. When a packet other than the sequence of each packet expected to be transmitted from the second communication device is received, the packet is accepted to establish the communication channel. | 2009-09-17 |
20090232154 | Prioritizing Resource Utilization In Multi-thread Computing System - One embodiment of the present invention prioritizes resource utilization in a multi-thread processor. A priority register stores thread information for P threads. The thread information includes P priority codes corresponding to the P threads, at least one of the P threads requesting use of at least one resource unit. A priority selector generates assignment signal to assign the at least one resource unit to the at least one of the P threads according to the P priority codes. | 2009-09-17 |
20090232155 | METHOD AND APPARATUS FOR COORDINATING ADJACENT CHANNEL TRANSMISSIONS ON MULTIPLE RADIO NODES - A method, apparatus and computer program product for coordinating adjacent channel transmissions on multiple-radio nodes is presented. A Maximum Channel Occupancy Duration (MCOD) limit for a length of an overall transmit period is defined. A set of timers (NNAV) for each neighbor node is maintained, each of said NNAV including a first timer (CTSNNAV) for the channel which, if set, indicates the maximum duration of a transmission to said neighbor node and a second timer (RTSNNAV) for a channel which, if set, prevents the neighbor node from authorizing a transmission the channel. | 2009-09-17 |
20090232156 | System, Apparatus, and Method for Loading Bits into Sub-Channels - An apparatus and a method for loading a predetermined number of bits into a plurality of sub-channels are provided. The apparatus comprises a sort module, a calculation module, and a decision module. The sort module is configured to sort the sub-channels into a plurality of sorted sub-channels according to the quality value of each of the sub-channels. The calculation module is configured to calculate the difference value for each of the sorted sub-channels, except for the first sorted sub-channels, according to the corresponding quality value. The decision module is configured to decide a number of bits for each of the sorted sub-channels according to the difference values, wherein a summation of the numbers is equal to the predetermined number. The apparatus and the method are able to load bits efficiently according to the difference values. | 2009-09-17 |
20090232157 | DATA DEFINITION APPARATUS, SYSTEMS, AND METHODS - An apparatus and a system, as well as a method and article, may operate to send a selected data type without self-definition information to a receiver if a state capable of interpreting the selected data type has been maintained by the receiver, and to send the selected data type with the self-definition information to the receiver if the state capable of interpreting the selected data type has not been maintained by the receiver. | 2009-09-17 |
20090232158 | METHOD AND APPARATUS FOR RADIO LINK CONTROL PADDING FOR ENHANCED GENERAL PACKET RADIO SERVICE | 2009-09-17 |
20090232159 | Dynamic Bandwidth Allocation Processor - A dynamic bandwidth allocation (DBA) processor comprises a DBA co-processor having DBA co-processor components and operative to perform and accelerate DBA functions, and a processing core logically coupled to the DBA co-processor through a processing bus and operative to configure and dynamically control all the DBA co-processor components and to run sections of algorithms that cannot be accelerated on the DBA co-processor. The DBA processor significantly accelerated the bandwidth allocation in a communications network such as an optical communications network or a fast wireless network. The DBA co-processor and the processing core may be integrated on a chip. | 2009-09-17 |
20090232160 | Bandwidth Requests of Scheduling Services - Methods and apparatus for providing bandwidth requests of scheduling services, such as, for example, best effort services, in a telecommunication network are disclosed. An example method includes receiving a plurality of bandwidth requests from different scheduling connections. The example method further includes combining the plurality of bandwidth requests in a common bandwidth request. | 2009-09-17 |
20090232161 | HIERARCHICAL HEADER FORMAT AND DATA TRANSMISSION METHOD IN COMMUNICATION SYSTEM - In order to transmit data between layers in a communication system, and ARQ controller determines a transmission method of a service packet according to QoS of the service packet of an upper layer, determines a retransmission method of the service packet according to the transmission method, generates a fragmentation block by fragmentizing and concatenating the service packet according to a transmission amount of the service packet determined by the transmission method, generates a data packet including the fragmentation block and fragmentation block information, adds radio link control information including the retransmission method to the data packet to generate a radio link control data packet, and transmits the radio link control data packet to a MAC layer. | 2009-09-17 |
20090232162 | COMMUNICATION APPARATUS AND METHOD - A delay in packet output due to packet fragmentation processing is reduced. If input data is output upon being subjected to fragmentation processing, fragmented data, from among a plurality of fragmented data items fragmented based upon a set value in an MTU register, which belongs to a first fragmented packet containing information that is based upon all fragmented packets is stored in a fragment buffer. After all fragmented packets from a second fragmented packet onward to which other fragmented data items belong are output, the first fragmented packet is output. | 2009-09-17 |
20090232163 | METHOD FOR GENERATING SUBFRAME INCLUDING RESOURCE DISTRIBUTION INFORMATION - A method for generating a subframe including resource distribution information is disclosed. The method for generating a subframe includes arranging resource allocation information in a subframe by sequentially allocating a localized permutation and a distributed permutation, and arranging a subframe control header including a resource unit index in a predetermined location by a system parameter, wherein the resource unit index indicates a frequency resource location of the resource allocation information. When both the localized permutation and the distributed permutation are used, a resource distribution method is transmitted to a user equipment. Therefore, an effect of the distributed permutation can be maximized without a great influence on the performance of the localized permutation, and a problem of decoding failure or latency can be prevented. | 2009-09-17 |
20090232164 | APPARATUS AND METHOD FOR TIME WEIGHTED BPSK CODE COMBINING - A method for time weighted combining of a plurality of binary phase shift key (BPSK) code sequences that is implemented by providing first, second and third sequences of chips of a BPSK code having a first, second and third code powers, respectively. A majority vote (MV) sequence of chips from the first, second and third sequences of chips is determined and a time multiplexed composite BPSK composite code sequence is formed by selecting a specific number of samples from each of the MV sequence of chips, and the two sequences of chips of the first, second and third sequences of chips that have the highest code powers, to form samples in a unit duration. | 2009-09-17 |
20090232165 | DIGITAL BROADCAST MULTIPLEXING APPARATUS - In a digital broadcast multiplexing apparatus for multiplexing a plurality of programs on a single physical channel so as to broadcast the digital multiplexed broadcasting program, there are provided with an apparatus for correcting positions of PCR packets contained in transport streams within the respective programs, and a PCR correction value forming apparatus for applying values of correcting PCR values with respect to a result of the position corrections in order to simply execute a function capable of uniformly synchronizing the PCR packets contained in the transport streams and capable of viewing the received programs without any interruption on the reception side even when a tuning operation is carried out. Then, the digital broadcast multiplexing apparatus outputs such a broadcast program packet stream which has been multiplexed as a single broadcast program in such a manner that the PCR packets are synchronized with each other among the plurality of programs. | 2009-09-17 |
20090232166 | ELECTRO-OPTIC DEFLECTOR - An electro-optic deflector | 2009-09-17 |
20090232167 | ACOUSTO-OPTICALLY Q-SWITCHED CO2 LASER - A pulsed CO | 2009-09-17 |
20090232168 | Green Laser System - A green laser is made by constructing a laser cavity that includes within it a laser diode, a non-linear crystal such as KTP, and a lens. The boundaries of the cavity are not defined by the ends of the diode itself, but are instead defined by the ends of an apparatus that includes the lens and the KTP or similar crystal. | 2009-09-17 |
20090232169 | WAVELENGTH CONVERTING LASER DEVICE - A wavelength converting laser device includes a laser diode producing laser light and including an optical resonator having a pair of facing reflectors, including a reflecting surface having a shape reducing loss in the optical resonator, with regard to a specific horizontal transverse mode of laser light as compared to the loss in the optical resonator for other horizontal transverse modes, and a wavelength converter for converting the laser light into harmonic light. | 2009-09-17 |
20090232170 | Semiconductor Laser Module - A semiconductor laser module is disclosed, comprising a module carrier ( | 2009-09-17 |
20090232171 | Laser system - The higher efficiency and lower power consumption are realized in a laser system for generating a high-power short-pulse laser beam. The laser system includes a laser oscillator for generating a pulse laser beam by laser oscillation, plural amplifiers for sequentially inputting the pulse laser beam generated by the laser oscillator and amplifying the pulse laser beam, and a control unit for controlling the laser oscillator to perform burst oscillation and halting an amplification operation of at least one of the plural amplifiers in a burst halt period between burst oscillation periods. | 2009-09-17 |
20090232172 | LASER FREQUENCY STABILIZING DEVICE, METHOD AND PROGRAM - A laser frequency stabilizing device comprises a laser light producer operative to produce and emit a laser light containing a first and a second longitudinal mode light having different wavelengths; a spectrometer operative to spectrally decompose the laser light into the first longitudinal mode light and the second longitudinal mode light; a first detector operative to detect the light output signal from a absorption cell; a second and third detector operative to detect the signal intensity of the first and second longitudinal mode light; an actuator operative to change the resonant cavity length; a first drive controller operative to detect the saturated absorption signal from the light output signal detected at the first detector and control driving the actuator based on the saturated absorption signal; a second drive controller operative to control driving the actuator such that the signal intensity of the first longitudinal mode light detected at the second detector and the signal intensity of the second longitudinal mode light detected at the third detector have a ratio of a certain value; and a switcher operative to switch the control of the detector between the control by the first drive controller and the control by the second drive controller. | 2009-09-17 |
20090232173 | Optical semiconductor apparatus - An optical semiconductor apparatus includes: an optical semiconductor element that outputs light; a lens that transmits light output from the optical semiconductor element; and a support member that is integrally formed and includes a first support supporting the optical semiconductor element, a second support supporting the lens, and an intermediate portion through which the first support and the second support are integrated. | 2009-09-17 |
20090232174 | SEMICONDUCTOR LASER DRIVING DEVICE AND SEMICONDUCTOR LASER DRIVING METHOD - A semiconductor laser driving device is mounted on an information recording/reproducing device or the like, and is suitably used for recording and reproducing information. The semiconductor laser driving device is provided with a semiconductor laser for emitting laser beams, and a temperature detecting means for detecting a temperature of the semiconductor laser, and changes an output of the laser beams based on the detected temperature. Thus, the semiconductor laser driving means can suitably improve response characteristics of the semiconductor laser, irrespective of the temperature of the semiconductor laser. Therefore, the semiconductor laser driving device can ensure recording performance to an optical disc without being affected by the temperature of the semiconductor laser. | 2009-09-17 |
20090232175 | DRIVE CIRCUIT FOR SEMICONDUCTOR LIGHT EMITTING ELEMENT, AND LIGHT SOURCE DEVICE, LIGHTING DEVICE, MONITOR DEVICE, AND IMAGE DISPLAY DEVICE USING THE DRIVE CIRCUIT - A drive circuit for a semiconductor light emitting element used for a light source device adapted to output a laser beam converted using a wavelength conversion element adapted to generate a second harmonic wave, includes a switching element connected to a power supply, an inductor having one end connected to the power supply via the switching element, and the other end connected to the ground, a first terminal disposed between the switching element and the inductor, to which a cathode terminal of the semiconductor light emitting element is connected, and a second terminal disposed between the other terminal of the inductor and the ground, to which an anode terminal of the semiconductor light emitting element is connected. | 2009-09-17 |
20090232176 | Single Mode Vertical Cavity Surface Emitting Laser Using Photonic Crystals With A Central Defect - Vertical cavity surface emitting lasers are disclosed, one example of which includes a substrate upon which a lower mirror layer is formed. An active region and upper mirror layer are disposed, in that order, on the lower mirror layer. In particular, the upper mirror layer includes a plurality of DBR layers formed on the active region. The upper mirror layer additionally includes a photonic crystal formed on the plurality of DBR layers and having a periodic structure that contributes to the definition of a central defect. As a consequence of this structure, the photonic crystal has a reflectivity that is wavelength dependent, and the central defect enables the VCSEL to propagate a single mode. | 2009-09-17 |
20090232177 | Method for Producing a Semiconductor Laser, and Semiconductor Laser - A method for producing a multiplicity of semiconductor lasers ( | 2009-09-17 |
20090232178 | TWO-WAVELENGTH SEMICONDUCTOR LASER DEVICE - A semiconductor laser device has a first light emitting portion and a second light emitting portion having a longer emission wavelength than that of the first light emitting portion. Each of the first light emitting portion and the second light emitting portion has a stripe-shaped ridge structure used for carrier injection. The ridge structure in the first light emitting portion includes a first front end region having a width Wf | 2009-09-17 |
20090232179 | SURFACE EMITTING LASER - A surface emitting laser having a photonic crystal layer | 2009-09-17 |
20090232180 | METHOD AND APPARATUS FOR COHERENTLY COMBINING LASER EMISSION - A laser system comprises first and second laser sub-cavities each including a gain medium arranged to produce volume gain gratings. The laser system further includes a beam combiner arranged to combine emission from each cavity and direct emission from one cavity to the other. As a result a stale, phase-locked coherently combined emission system is provided. | 2009-09-17 |
20090232181 | SYSTEMS AND METHODS FOR CONTROLLING THE ELECTRODE POSITION IN AN ARC FURNACE - Embodiments of a system for controlling the position of an electrode in an arc furnace comprise an arc furnace comprising a molten bath and slag disposed over the molten bath, wherein the slag contacts the molten bath at an interface. The system further comprises an electrode comprising a lower tip, wherein the electrode is configured to deliver current by disposing the lower tip of the electrode below the upper surface of the slag. The current is substantially directed through the slag to the interface. The system also comprises a control system configured to determine the position of the lower tip of the electrode relative to the upper surface of the slag based on harmonic frequencies associated with the current, wherein the lower tip position relative to the upper surface of the slag correlates to the harmonic frequencies. | 2009-09-17 |
20090232182 | Air conditioner and temperature sensor - Disclosed is an air conditioner, in which, when a temperature sensor is rotated, the rotating speed of the temperature sensor is increased or the temperature sensing cycle is elongated in a rotating section where an object does not exist rather than in a rotating section where the object exists. Further, the rotating speed of the temperature sensor is increased or the temperature sensing cycle is elongated if the object is located at a short distance from the air conditioner rather than if the object is located at a normal distance from the air conditioner, and the rotating speed of the temperature sensor is decreased or the temperature sensing cycle is shortened if the object is located at a long distance from the air conditioner rather than if the object is located at a normal distance from the air conditioner. | 2009-09-17 |
20090232183 | SYSTEM AND METHOD TO MEASURE TEMPERATURE IN AN ELECTRIC MACHINE - A system and method to measure a characteristic of a component of an electric machine. The system includes an optical fiber disposed proximate to the component, at least one sensor, disposed along the optical fiber, to detect the temperature of the component, and a data acquisition system operably coupled to the sensor via the optical fiber to generate real-time data in accordance with the detected temperature of the component during an operation of the electric machines. | 2009-09-17 |
20090232184 | DIGITAL FOOD THERMOMETER WITH FAST RESPONSE PROBE - A digital thermometer having a fast response probe is provided. The probe preferably has a distal end and a proximal end, the proximal end including an opening; a temperature sensing element disposed in said probe housing proximate to the opening and a thermally conductive food safe coating covering the opening. The probe is connected to a housing including thermometer circuitry and, preferably, a temperature display. The thermometer generates a reading to an accuracy of within +/−0.5° F. in a temperature range of between 130° F. to 150° F. The thermometer reaches a stabilized reading within 8 seconds or less. | 2009-09-17 |
20090232185 | Temperature Detector and Fixing Material Transfer Suppressing Structure - The temperature detector comprises a thermistor embedded in varnish, a connector, a lead wire connecting the thermistor and the connector to each other, and a transfer suppressing portion provided between the thermistor and the connector and suppressing the movement of the varnish on the surface of the lead wire. The suppressing portion comprises a protection tube surrounding the lead wire and a grommet filled in a space inside the protection tube. | 2009-09-17 |
20090232186 | LOCKING DEVICE FOR RELIABLY SECURING A TEMPERATURE SENSOR ON A HEAT SINK - A locking device for securing a temperature sensor on a heat sink, includes a support seat and a catch fixed to the heat sink and respectively located at two opposite sides of the sensor, and a tab connecting with the support seat and the catch and pressing the sensor against the heat sink downwardly. The support seat includes a bent sheet secured on the heat sink and a pair of rings. The catch includes a bent flake secured on the heat sink and a barb extending downwardly from the flake. An end of the tab is bent to form a hem pivotably connected to the support seat at a position between the rings. An opposite end of the tab defines an opening, which engages the barb therein to thereby lock with the catch. | 2009-09-17 |
20090232187 | Food thermometer sleeve - A protective sleeve for a food thermometer having a probe for insertion into a food is disclosed. The sleeve includes a first body and a second body rotatably positioned within the first body. Each body includes opposing open ends and a sidewall there between, with the second body having indicia displayed thereon. An opening within the sidewall of the first body allows the indicia, which are preferably related to cooking instructions, on the sidewall of the second body to be read. | 2009-09-17 |
20090232188 | RETROREFLECTING TRANSPONDER - The Method for transmitting a signal from a transmitter in an area around the transmitter via a satellite comprising the steps of
| 2009-09-17 |
20090232189 | Method, apparatus and computer program to efficiently acquire signals in a cognitive radio environment - Signal instances are detected from within a long period of a received radiofrequency RF signal envelope, grouped according to signal level, and periodicities are determined among the grouped signal instances. Periodicity of one of the groups is matched to a known periodicity, and a frequency domain is estimated at a time instance derived from the matched periodicity. If an expected frequency pattern is found that occupies the derived time instance in the estimated frequency domain, then a receiver is synchronized to a candidate signal that lies within the frequency pattern. Then content of the candidate signal is decoded and that content is used to access a cognitive radio system (e.g., register to the system, start the normal operation in the network such as spectrum detection and/or transmission in a traffic channel, etc.). | 2009-09-17 |
20090232190 | SIGNAL TRANSMITTING METHOD, TRANSMITTING APPARATUS, AND RECEIVING APPARATUS USED FOR THE SIGNAL TRANSMITTING METHOD - A disclosed signal transmitting method includes the steps of a) categorizing plural digital signals, obtained by performing A/D conversion on plural analog signals consecutively arranged in a time direction, into plural signal groups in an order starting from lower bits of the plural digital signals, b) performing code spreading on the plural digital signals by using a different spread frequency for each signal group and using different spread codes for each bit, c) multiplexing the spread digital signals, and d) transmitting the multiplexed plural digital signals. | 2009-09-17 |
20090232191 | DIGITAL RADIO FREQUENCY TRANCEIVER SYSTEM AND METHOD - A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler. | 2009-09-17 |
20090232192 | Method and Transceiver System Having a Transmit Clock Signal Phase that is Phase-Locked with a Receive Clock Signal Phase - A transceiver system is disclosed that includes a plurality of transceiver chips. Each transceiver chip includes one or more SERDES cores. Each SERDES core includes one or more SERDES lanes. Each SERDES lane includes a receive channel and a transmit channel. The transmit channel of each SERDES lane is phase-locked with a corresponding receive channel. The transceiver system has the capability of phase-locking a transmit clock signal phase of a transmitting component with a receive clock signal phase of a receiving component that is a part of a different SERDES lane, a different SERDES core, a different substrate, or even a different board. Each SERDES core receives and transmits data to and from external components connected to the SERDES core, such as hard disk drives. A method of transferring data from a first external component coupled to a receive channel to a second external component coupled to a transmit channel is also disclosed. | 2009-09-17 |
20090232193 | Echo profile probe - In an orthogonal frequency division multiplex (OFDM) communication network, a node transmits an echo profile probe to other nodes in the network. The echo profile probe is a message that allows characterization of the unique echo profile through the communication channel between each node pair. The echo profile is used to calculate the cyclic prefix length needed for optimum communication from one node to the other. | 2009-09-17 |
20090232194 | ADAPTIVE RADIO/MODULATION APPARATUS, RECEIVER APPARATUS, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - Adaptive modulation part ( | 2009-09-17 |
20090232195 | CLOCK DATA RESTORING DEVICE - The clock data restoration device | 2009-09-17 |
20090232196 | APPARATUS AND METHOD FOR DECISION FEEDBACK EQUALIZATION - Disclosed is an apparatus including an odd data receiving unit that receives an input signal, an even data receiving unit that also receives the input signal, and a pattern filter. The odd data receiving unit samples a half-rate DFE equalized signal with an odd data timing clock to output data decision data. The odd data receiving unit also samples both the half-rate DFE equalized signal and a non-half-rate DFE equalized signal with an odd edge timing clock having the phase shifted by 90 degrees from the odd data timing clock to output resulting edge decision data. The even data receiving unit samples the half-rate DFE equalized signal with an even data timing clock having the phase shifted by 180 degrees from the odd data timing clock to output data decision data. The even data receiving unit also samples both the half-rate DFE equalized signal and the non-half-rate DFE equalized signal with an even edge timing clock having the phase shifted by 90 degrees from the even data timing clock to output resulting edge decision data. The pattern filter selects one of the edge decision data sampled at the odd edge timing and at the even edge timing in response to the value of a data pattern of three consecutive bits (110 or 001) obtained from the data decision data sampled at the odd and even data timings (FIG. | 2009-09-17 |
20090232197 | PULSE MODULATED WIRELESS COMMUNICATION DEVICE - The transmission device includes a first transmission RF part for RF modulating the pulse signal generated at the timing of a clock signal so as to generate a clock RF signal and for outputting the clock RF signal to a synchronization signal channel; a transmission data generator for generating transmission data in synchronization with the timing of the clock signal; a PPM modulator for PPM modulating the transmission data and for outputting a PPM modulation signal; and a second transmission RF part for RF modulating the PPM modulation signal so as to generate a data RF signal and for outputting the data RF signal to a data signal channel different from the synchronization signal channel. The reception device receives reference synchronization information so as to maintain phase synchronization in data reception. | 2009-09-17 |
20090232198 | Method and apparatus of coding/decoding image - An apparatus and a method of coding/decoding an image are provided. The apparatus includes: a low resolution image coding unit that codes a low resolution image corresponding to an input image using motion estimation and compensation; and a residual image coding unit that performs intra mode coding with respect to a residual image which indicates a difference between a reconstructed image of the coded low resolution image and the input image by considering temporal correlation between neighboring residual images. | 2009-09-17 |
20090232199 | Encoding apparatus, decoding apparatus, encoding method, and decoding method - An encoding apparatus encodes image data using a picture order count (POC) that indicates a display order of a picture. The encoding apparatus includes a remainder calculating unit that calculates a remainder by dividing an absolute frame number counted from an instantaneous decoding refresh (IDR) picture by a divisor which is a number of reference frames in one POC cycle, and a remainder code converting unit that coverts the remainder calculated by the remainder calculating unit into a code. A decoding apparatus decodes image data using the POC. The decoding apparatus includes a remainder extracting unit that, when random access decoding is performed, extracts a remainder by decoding a remainder code added to a picture at a random decoding start position, and an initializing unit that initializes an input value of a decoding process for the POC, by using the remainder extracted by the remainder extracting unit. | 2009-09-17 |
20090232200 | METHOD OF TRANSMITTING A PRE-CODED VIDEO SIGNAL OVER A COMMUNICATION NETWORK - A transmission method for transmitting, over a communication network, a video signal pre-coded using hierarchical coding comprises the steps of periodically estimating (S | 2009-09-17 |
20090232201 | VIDEO COMPRESSION METHOD AND APPARATUS - A video compression system may have first and second dual-port memory devices, a third memory device, and first and second processors that may provide enhanced processing, including motion estimation. The first processor may be configured to store in the second memory device first and second video frames and to transfer sequential sets of data from the first video frame corresponding to fields of search. A second set of a plurality of adjacent macroblocks of the second video frame may be compared to macroblocks selected from the field of search. Dual-port memory devices may allow for the concurrent use of shared memory by the two processors as well as data transfer during processing. | 2009-09-17 |
20090232202 | WIRELESS VIDEO STREAMING USING SINGLE LAYER CODING AND PRIORITIZED STREAMING - A method of communication includes providing single layer content coded video frames ( | 2009-09-17 |
20090232203 | Expert System and Method for Elastic Encoding of Video According to Regions of Interest - An elastic expert system for allocating bits according to application domain requirements and network resources. The elastic expert system observes the network resources and determines a state for allocating bits, the state relating to the application domain requirements. The elastic expert system can then allocate bits to a region-of-interest based on the determined state. The elastic expert system also can allocate bits to a background region and an extended region of interest. | 2009-09-17 |
20090232204 | METHOD AND APPARATUS FOR ENCODING AND DECODING TRANSFORM COEFFICIENTS - A method of encoding transform coefficients and a transform coefficient encoding apparatus, and a method of decoding transform coefficients and a transform coefficient decoding apparatus are provided. The method of encoding the transform coefficients includes reading transform coefficients in a current block, determining whether a first transform coefficient having an absolute value greater than a predetermined threshold value exists in the transform coefficients in the current block, generating first flag information indicating whether the first transform coefficient exists, dividing the first transform coefficient from information of a second transform coefficient that is remaining transform coefficients excluding the first transform coefficient, and encoding the first transform coefficients and the second transform coefficients separately, thereby more efficiently using a correlation between each of the transform coefficients. | 2009-09-17 |
20090232205 | ARITHMETIC DECODING APPARATUS AND METHOD - The decoding apparatus enabling high-speed arithmetic decoding in decoding data coded using CABAC is an arithmetic decoding apparatus which receives, as input, coded data obtained by converting multivalue information of syntax into binary data then performing Context-based Adaptive Binary Arithmetic Coding on the binary data, and which decodes the coded data into the original multivalue information. During the reconstruction of the current binary data, the arithmetic decoding apparatus, parallelly calculates, in the same cycle, “next-next identifier code” candidates and “context index” candidates corresponding to the “next-next identifier code” candidates, and, in the next cycle, parallelly calculates, in the same cycle, a “next identifier code”, context index candidates corresponding to the next identifier code, and “probability variable” candidates corresponding to the “context index” candidates, and, when the current binary data reconstruction result is known, selects the respective calculation results according to the reconstruction result. | 2009-09-17 |
20090232206 | IMAGE PREDICTION ENCODING DEVICE, IMAGE PREDICTION DECODING DEVICE, IMAGE PREDICTION ENCODING METHOD, IMAGE PREDICTION DECODING METHOD, IMAGE PREDICTION ENCODING PROGRAM, AND IMAGE PREDICTION DECODING PROGRAM - An image predictive encoding device including an intra frame predictive signal generation method determination section that determines, for adjacent areas including regenerated pixel signals and adjacent to the target area, a predictive method derived on the basis of data corresponding to the adjacent areas as an R mode predictive method or an L mode predictive method, an intra frame predictive signal generation section that generates an intra frame predictive signal on the basis of the R mode predictive method thus determined, and a subtractor, a transform section, a quantization section, and an entropy encoding section that encode a residual signal of a pixel signal of the target area on the basis of the generated intra frame predictive signal. | 2009-09-17 |
20090232207 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE BASED ON INTRA PREDICTION - Provided are an intra prediction-based encoding method, and an apparatus for accomplishing the same. In the method, a linear prediction coefficient of a current block is calculated based on encoded blocks adjacent to the current block, a predicted block is generated by performing intra prediction on the current block by using a linear prediction coefficient, and a residual block that is the difference between the current block and the predicted block is encoded. Accordingly, information regarding a direction of intra prediction does not need to be additionally transmitted, thereby reducing the amount of bits that are to be transmitted, and the quality of an image can be improved by adaptively controlling the efficiency and precision of intra prediction. | 2009-09-17 |
20090232208 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE - Provided are a method and an apparatus for encoding and decoding an image to improve the efficiency for predicting an image by reducing discontinuity between prediction blocks by performing filtering on a prediction picture. The method of encoding an image includes generating filtered prediction pixel values by performing filtering in which a weighted sum of prediction pixels of a prediction picture with respect to peripheral prediction pixels is calculated, and encoding a difference value between the filtered prediction picture comprising the filtered prediction pixel values and a current picture. | 2009-09-17 |
20090232209 | VIDEO ENCODING/DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 2009-09-17 |
20090232210 | ADVANCED VIDEO CODED PICTURES - REDUCED COST COMPUTATION OF AN INTRA MODE DECISION IN THE FREQUENCY DOMAIN - A method of intra mode prediction uses a block of pixels and their horizontal H | 2009-09-17 |
20090232211 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE BASED ON INTRA PREDICTION - Provided is an intra prediction-based encoding method, and an apparatus for accomplishing the same. In the method, an order of scanning sub blocks divided from a current block is determined based on an edge present in the current block; a predicted block is generated by performing intra prediction on the current block in the order of scanning, based on already encoded blocks adjacent to the current block; and a residual block that is a difference between the current block and the predicted block is encoded. Accordingly, the precision of intra prediction can be improved, thus increasing the quality of an image. | 2009-09-17 |
20090232212 | Adaptive Interpolation in Image or Video Encoding - A method processes and transmits of data in which image data of an image in the transmitter are provided at a first resolution level and at a second resolution level, higher than the first resolution level. At least one interpolation parameter is fixed, for the determination of image data of the second resolution level form image data of the first resolution level. At least some of the image data of the first and the second resolution levels are transmitted, whereby the transmission of the image data the second resolution level depends on at least one fixed interpolation parameter. Furthermore, a definition of the at least one fixed interpolation parameter is transmitted. | 2009-09-17 |
20090232213 | Method and apparatus for super-resolution of images - A method to generate super-resolution images using a sequence of low resolution images is disclosed. The method includes generating an estimated high resolution image, motion estimating between the estimated high resolution image and comparison images from the sequence of low resolution images, motion-compensated back projecting, and motion-free back projecting that results in a super resolved image. A corresponding system for generating super-resolution images includes a high resolution image estimation module, a motion estimating module, a motion-compensated back projection module, a motion-free back projection module, an input interface, and an output interface. | 2009-09-17 |
20090232214 | Video coding and decoding - A decoder for video signals, such as MPEG, which uses motion-compensated bidirectional predictive coding, performs concealment of lost or corrupted portions of a picture. For this purpose, it estimates missing motion vectors by combining the two vectors which accompany a bidirectionally coded frame to create a substitute vector. An encoder can be modified to enhance this decoder operation, including forcing at least one frame per group of frames to be coded using bidirectional prediction, and constraining the two vectors so that the substitute vector is closer to the wanted value. | 2009-09-17 |
20090232215 | Method and an Apparatus for Encoding or Decoding a Video Signal - A method of processing a video signal is disclosed. The present invention includes determining an intra prediction mode of a current block using a template region adjacent to the current block and obtaining a prediction value of the current block using the intra prediction mode of the current block. Accordingly, the present invention raises efficiency of video signal processing by enabling a decoder to derive information on a prediction mode of a current block in a decoder instead of transferring the information to the decoder. | 2009-09-17 |
20090232216 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - The present application provides an image processing apparatus, including: a correlation value calculation section configured to determine a correlation value between a target block and a each of reference blocks; a section configured to determine a highest value from among the correlation values; a motion vector detection section configured to detect a motion vector of the target block; and a section configured to calculate an index to reliability of the motion vector detected by the motion vector detection section. | 2009-09-17 |
20090232217 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE - Provided are a method and apparatus for encoding an image, which can variably encode a residual of a current block that is predicted with a skip mode according to prediction modes of neighboring blocks, and a method and apparatus for decoding the encoded image. When both the prediction mode of the current block and the prediction modes of the neighboring blocks are skip modes, since the method of encoding the image also encodes the residual of the current block that is predicted with the skip mode, more bits can be assigned to the current block with a high probability of acting as a reference block for other blocks. | 2009-09-17 |
20090232218 | MOTION VECTOR ENCODING DEVICE AND DECODING DEVICE - A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units. | 2009-09-17 |
20090232219 | RECORDING MEDIUM HAVING RECORDED THEREON CODED INFORMATION USING PLUS AND/OR MINUS ROUNDING OF IMAGES - A recording medium having recorded thereon information related to coded data of an image sequence; wherein the information related to coded data of an image sequence is a set of coded frame information of a plurality of frames of an image sequence; wherein the coded frame information includes: information related to a difference image between an image of a current frame and a prediction image of the current frame, the prediction image being synthesized by performing motion compensation, information related to motion vectors estimated in performing the motion compensation, and rounding method information specifying either a positive rounding method or a negative rounding method for interpolating intensity values of pixels in performing the motion compensation when the input image is coded as a P frame, wherein no rounding method information is included in the coded frame information when the input image is coded as an I frame. | 2009-09-17 |
20090232220 | System and method for reformatting digital broadcast multimedia for a mobile device - A system and a method reformat digital broadcast multimedia for a mobile device. The system and the method reformat and/or repackage audiovisual content into a format that may be rendered on the mobile device without the need for additional custom software on the mobile device. The system and the method reformat incoming mobile broadcast audiovisual content into 3GPP Progressive Download format in real time while simultaneously delivering a resulting 3GPP Progressive Download file to the mobile device for rendering. | 2009-09-17 |
20090232221 | VIDEO INSERTION INFORMATION INSERTION IN A COMPRESSED BITSTREAM - Particular embodiments generally relate to video insertion information insertion in a compressed bitstream. In one embodiment, a compressed bitstream of data is received. Video insertion information to be added to the bitstream is then determined. One or more macroblocks out of a plurality of macroblocks are determined in the compressed bitstream. The macroblocks are determined in the compressed domain and not the spatial domain. Information is selectively inserted for the video insertion information for the determined one or more macroblocks in the compressed bitstream. For example, encoded macroblocks for the video insertion information may replace the determined one or more macroblocks. Also, the one or more macroblocks may be decoded and information for the video insertion information is added to the decoded one or more macroblocks, and then the one or more macroblocks are re-encoded with the information. The re-encoded macroblocks may then replace the determined one or more macroblocks in the compressed bitstream. | 2009-09-17 |
20090232222 | METHOD FOR DECODING A DATA STREAM AND A RECEIVER - In the case of a method for decoding a data stream a first decoding means (DR | 2009-09-17 |
20090232223 | Moving Image Conversion Method, Moving Image Convesion Apparatus, Moving Image Conversion System, and Server Apparatus, and Program - An apparatus and method are provided for enabling inhibition or reduction in the amount of processing to decode and to re-encode image data to be compatible with a transmission capacity upon delivery of converted images. Image data converter | 2009-09-17 |
20090232224 | OPTIMAL RATE ALLOCATION FOR A GROUP OF CHANNELS - The present invention relates generally to systems, methods, and computer program products for optimally allocating a fixed number of bits among a plurality of multi-media data channels. The optimal number of bits is determined by preprocessing each channel to calculate complexity data, and then the complexity data is used to determine the optimal number of bits to assign to each channel. The optimal number of bits may be determined by a closed loop controller in communication with one or more channel encoders, and the multi-media channels may contain video data conforming to the MPEG2 video format. | 2009-09-17 |
20090232225 | METHOD AND APPARATUS FOR ANALYTICAL AND EMPIRICAL HYBRID ENCODING DISTORTION MODELING - There are provided a method and apparatus for analytical and empirical hybrid encoding distortion modeling. An apparatus includes a distortion calculator for modeling video encoding distortion by dividing the video encoding distortion into a first portion and a second portion, calculating the first portion using empirical calculations, and calculating the second portion using analytical calculations. | 2009-09-17 |
20090232226 | Local Digital Video Distribution System for Cable - An apparatus for use in a cable system comprises a port for receiving a downstream cable transmission; a demodulator for receiving an upstream signal for providing a demodulated signal; and a modulator for modulating the demodulated signal for providing a downstream signal for addition to the received downstream cable transmission. | 2009-09-17 |
20090232227 | PULSE COMMUNICATION DEVICE, PULSE TRANSMITTING DEVICE, PULSE RECEIVING DEVICE, PULSE TRANSMITTING/RECEIVING DEVICE, ELECTRONIC APPARATUS, AND PULSE COMMUNICATION METHOD - A pulse communication device includes a transmitting circuit including a base pulse generator adapted to generate a base pulse based on a base clock, and n (n is an integer equal to or greater than 1) data modulated pulse generators adapted to modulate a phase of the base pulse, which is generated based on the base clock, based on data to be transmitted, and output the result as a data modulated pulse, and a receiving circuit including n multipliers adapted to multiply a pair of pulses among the n data modulated pulses generated by the transmitting circuit and the base pulse to output multiplication signals, and n demodulators adapted to restore the data from the multiplication signals. | 2009-09-17 |
20090232228 | CONSTRAINED AND CONTROLLED DECODING AFTER PACKET LOSS - A technique is described herein for reducing audible artifacts in an audio output signal generated by decoding a received frame in a series of frames representing an encoded audio signal in a predictive coding system. In accordance with the technique, it is determined if the received frame is one of a predefined number of received frames that follow a lost frame in the series of the frames. Responsive to determining that the received frame is one of the predefined number of received frames, at least one parameter or signal associated with the decoding of the received frame is altered from a state associated with normal decoding. The received frame is then decoded in accordance with the at least one parameter or signal to generate a decoded audio signal. The audio output signal is then generated based on the decoded audio signal. | 2009-09-17 |
20090232229 | DEVICE, SYSTEM, AND METHOD OF RESOURCE ALLOCATION IN A WIRELESS NETWORK - Device, system, and method of resource allocation in a wireless network. Embodiments include optimal space-frequency architectures for very high peak rates in wireless systems. For example, an apparatus for wireless communication in a power-limited, very wideband system includes a wireless communication device having a media access controller (MAC) and a physical layer (PHY) that are adapted for a multiple-input-multiple-output (MIMO) orthogonal frequency-division multiple access (OFDMA) communication scheme; a plurality of antennas, operationally coupled to said device, to send and receive wireless communication signals according to the MIMO-OFDMA communication scheme; and a resource allocator, to allocate transmission resources of the device into desired MIMO channels optimized according to at least one of signal-to-noise ratio (SNR), bandwidth, number of users, and signal-to-noise-plus-interference ratio (SINR). | 2009-09-17 |
20090232230 | METHOD FOR OFDM AND OFDMA CHANNEL ESTIMATION - This invention discloses a method for OFDM and OFDMA channel estimation via phase-rotated polynomial interpolation and extrapolation (inter/extra-polation). For complexity reason, polynomial inter/extra-polation is an often considered method for channel estimation in orthogonal frequency-division multiplexing (OFDM) and orthogonal frequency-division multiple access (OFDMA) systems, in which the simplest choice is linear inter/extra-polation. But the performance of this method depends on the accuracy of symbol timing estimation as well as the channel delay spread. The invention mitigates the problem by adding a linear phase factor to polynomial inter/extra-polation, which corresponds to adding a delay (also called delay shift) in the time domain. | 2009-09-17 |
20090232231 | Frequency estimation - For estimating a difference between a frequency of a base station and a locally generated frequency of a mobile equipment in a mobile communications network, wherein at least a signal in a plurality of signals transmitted from the base station and received by the mobile equipment comprises a plurality of symbols each of which includes a cyclic prefix, a correlation between a symbol and its cyclic prefix is used for estimating the frequency difference. | 2009-09-17 |