17th week of 2015 patent applcation highlights part 32 |
Patent application number | Title | Published |
20150110091 | SCANNING METHOD AND SCANNING APPARATUS IN WIRELESS LAN - Disclosed are a scanning method and scanning apparatus in a wireless LAN. The scanning method in a wireless LAN comprises: a step in which an access point (AP) receives a first probe request frame from a first station (STA); a step in which the AP unicasts a first probe response frame to the first STA as a response to the first probe request frame; a step in which the AP receives a second probe request frame from a second STA for a specific time interval after unicasting the first probe response frame to the first STA; and a step in which the AP broadcasts a second probe response frame as a response to the second probe request frame for a specific time interval. Thus, scanning processes can be quickly performed. | 2015-04-23 |
20150110092 | APPARATUS FOR MEASURING BIOLOGICAL INFORMATION AND METHOD FOR COMMUNICATING DATA FROM APPARATUS FOR MEASURING BIOLOGICAL INFORMATION - The present invention relates to an apparatus for measuring biological information supporting multiplex communication. The apparatus for measuring biological information, according to one embodiment of the present invention, comprises: a measuring portion for measuring biological information through a biosensor; a data communication portion for transreceiving the biological information that is measured with an external device through a wireless communication network, which supports a client mode and an AP mode; and a control portion for accessing a communication network by controlling the client mode or the AP mode in a WiFi module. The present invention can transmit data to the external device through a connected AP by operating a wireless communication module in the client mode, or communicate data with the external device through a communication module of terminals, which connect by self-switching to the AP mode when the connected AP does not exist. | 2015-04-23 |
20150110093 | SYSTEMS, METHODS AND DEVICES FOR DYNAMICALLY SETTING RESPONSE INDICATION DEFERRAL IN WIRELESS NETWORKS - Methods and apparatuses for wireless communication are provided. A method for wireless communication comprises receiving a first physical layer protocol data unit. The method further comprises receiving a second PPDU. The method further comprises updating a value of a response indication deferral counter to a value indicated by the second PPDU when the second PPDU is associated with a same basic service set as the first PPDU. The method further comprises updating the response indication deferral counter to the value indicated by the second PPDU when the second PPDU is associated with a different basic service set than the first PPDU and the indicated value is not less than a current value of the response indication deferral counter. The current value of the response indication deferral corresponds to a value of the response indication deferral counter when the end of the second PPDU is received. | 2015-04-23 |
20150110094 | SYSTEM COORDINATED WLAN SCANNING - The invention proposes a scan control device, wherein in the scan operation a network detection is performed, the device comprising a request receiving means for receiving at least one request for providing scan information, and a scan control means for performing a scan operation independently from receiving the scan information requests. The invention also proposes a corresponding method and a computer program product. | 2015-04-23 |
20150110095 | GATEWAY SYSTEM, DEVICE AND COMMUNICATION METHOD - Embodiments of the present invention provide a gateway system and a communication method. The gateway system includes: a control plane entity, connected or integrated with a mobility management network element, and configured to allocate an IP address to UE and configure a data path for connecting a user plane entity with an RAN, a PDN or another gateway; one or more user plane entities, located between the PDN and the RAN, independent of the control plane entity, configured to forward data on the data path configured by the control plane entity. The gateway system is composed of the control plane entity and the user plane entity which are independent of each other, the number of the user plane entities may be independently changed to adapt to the change of network traffic without replacing all gateway entities, the network deployment is more convenient and the cost is lower. | 2015-04-23 |
20150110096 | SECURE ON-LINE SIGNUP AND PROVISIONING OF WIRELESS DEVICES - Embodiments of a mobile device and method for secure online sign-up and provisioning of credentials for Wi-Fi hotspots are generally described herein. In some embodiments, provisioning occurs using a service set identifier (SSID) to associate with a hotspot and retrieve a virtual LAN (VLAN) identifier. The VLAN identifier is used to complete the signup and provisioning process. In some embodiments, a hotspot may implement a primary SSID and a dependent SSID. The mobile device associates with the hotspot using the dependent SSID to perform the secure online signup and provisioning process. Once credentials are obtained using the signup and provisioning process, the device can connect to the hotspot using the primary SSID and the already provisioned credentials. The provisioned credentials may include certificates, username/password, or SIM-type credentials. | 2015-04-23 |
20150110097 | System and Method for Using Distributed Network Performance Information Tables to Manage Network Communications - A system, method and network communications device including a processing unit configured to communicate data packets with one or more network communications devices. The data packets include network performance information generated by the one or more network communications devices in response to receiving a portion of the data packets. The network communications device further includes a memory in communication with the processing unit. The memory is configured to store a table containing network performance information associated with the node segments through which the data packets are communicated with the one or more network communications devices. The processing unit is further configured to process the data packets to store the network performance information in the table. The network performance information is utilized to alter future communications of the data packets through the node segments. | 2015-04-23 |
20150110098 | Data Transmission Method, Device, and Gateway - A data transmission method includes: receiving, by a first device in a home network, a first message sent by a gateway, where the first message identifies that a first connection between the gateway and an external network is broken; sending, by the first device after receiving the first message, a second message to the gateway, where the second message is used to enable the gateway to set a first packet forwarding rule on the gateway, and setting, by the first device after receiving the first message, a second packet forwarding rule on the first device, where the second packet forwarding rule is used by the first device to forward packets that come from the gateway and are destined for the external network, through a second connection that is established by the first device with the external network. | 2015-04-23 |
20150110099 | Service Information Discovery Method and Device - A service information discovery method includes sending a first query request message. The first query request message carries a first hash value obtained by performing a first hash operation on service identity information of a service to be discovered. The method includes receiving a first query response message sent by a peer end. The first query response message carries first result notification information identifying whether a service of which a hash value obtained by performing the first hash operation is the first hash value exists at the peer end. The method further includes performing the second hash operation on the service identity information of the service to be discovered, and obtaining the second hash value corresponding to the service to be discovered; and if the second hash value corresponding to the service to be discovered exists in the first result notification information, determining that the service to be discovered exists at the peer end. | 2015-04-23 |
20150110100 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION DEVICE, PROJECTOR, AND WIRELESS COMMUNICATION METHOD - A wireless communication system performs ad-hoc mode communication, wherein a first terminal includes an identification information storing section, an IP address storing section, an SSID generating section generating a service set identifier, a beacon signal generating section generating a beacon signal including an SSID, and a priority information updating section updating priority information, and the second terminal includes an SSID acquiring section acquiring the SSID from the beacon signal, memory storing the SSID, an SSID selecting section selecting one SSID based on the priority information, an IP address acquiring section acquiring the IP address of the first terminal from the selected SSID, and a communicating section making a connection to the first terminal by using the acquired IP address. | 2015-04-23 |
20150110101 | METHODS AND APPARATUS FOR ENABLING DISTRIBUTED FREQUENCY SYNCHRONIZATION - A method, an apparatus, and a computer program product for wireless communication are provided in connection with enabling distributed frequency synchronization based on a fastest node clock rate. In one example, a first UE is equipped to determine that a fastest clock rate is faster than an internal clock rate of the first UE by more than a first positive offset, and adjust the internal clock rate based on the determined fastest clock rate. In an aspect, the fastest clock rate is associated with a second UE of one or more other UEs from which synchronization signals may be received. In another example, a UE is equipped to obtain GPS based timing information, adjust an internal clock rate based on the GPS based timing information, and transmit a synchronization signal at an artificially earlier time in comparison to a scheduled time of transmission associated with the adjusted internal clock rate. | 2015-04-23 |
20150110102 | SYSTEMS AND METHODS FOR PROVIDING SYNCHRONIZATION IN A NETWORKED ENVIRONMENT - Described herein are systems and methods for synchronization in a networked environment. For example, some embodiments provide methods for synchronizing a client device having a client media time reference with a server device having a server media time reference. In some cases such methods are embodied in computer readable code that is executable on one or more processors. Furthermore, some embodiments provide hardware, such as networked media devices that are configured to perform such methods. In overview, in some embodiments a client obtains timing information from a server and, on the basis of this timing information, applies an adjustment to a client control time reference, thereby to synchronize the client media time reference with the server media time reference. Some embodiments are particularly directed to the situation where there is a desire to synchronize networked media devices across a combination of wired and wireless networks. | 2015-04-23 |
20150110103 | Media Playout for VOIP Applications - In overview, the various embodiments include methods performed by a receiver device processor for implementing one or more buffer space management strategies to free up space in the buffer in response to determining that the buffer is full. In the various embodiments, the receiver device processor may analyze media packets stored in the buffer based on various criteria to identify media packets that may be discarded without significantly impacting playout sound quality to free space in the buffer for incoming packets. | 2015-04-23 |
20150110104 | Utilizing Multiple Mesh Network Gateways in a Shared Access Network - A mesh network, operating as a virtual Ethernet switch, includes multiple nodes operating as Mesh Network Gateway Interfaces (mesh NGIs) enabled for communication with one or more shared access networks. Selectively coupling the multiple NGIs to the same shared access network provides redundancy and load balancing aimed at improving the reliability and performance of the network. A first architecture is based on a gateway group, including a plurality of NGIs enabled to communicate with a single shared access network via a designated broadcast server elected from among the NGIs. A second architecture is based on a plurality of (physical) NGIs enabled to communicate with a single shared access network via one or more designated nodes in the shared access network. The designated nodes, or Mesh Servers (MSs), operate as virtual NGIs, and traffic entering or exiting the mesh flows through one of the MSs, thus improving packet broadcast efficiency. | 2015-04-23 |
20150110105 | IMPLEMENTATION OF PROTOCOL IN VIRTUAL LINK AGGREGATE GROUP - Switches in a virtual networking environment may be synchronized by providing virtual networking policies to multiple switches connected to a virtual machine. The multiple switches may form a virtual link aggregate group. Virtual networking policies corresponding to the virtual machine may be provided via packets sent to the multiple switches in the link aggregate group. In some embodiments, the packet may be sent under the IEEE 802.1Qbg protocol. | 2015-04-23 |
20150110106 | COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD - A communication system | 2015-04-23 |
20150110107 | PACKET FORWARDING SYSTEM, CONTROL APPARATUS, PACKET FORWARDING METHOD, AND PROGRAM - A packet forwarding system includes: a plurality of first relay apparatuses connected to one another; a plurality of second relay apparatuses that include a plurality of ports and that are connected to the plurality of first relay apparatuses; and a control apparatus that configures a plurality of trunks, each serving as a virtual logical link, by using a plurality of physical links between the first relay apparatuses and the second relay apparatuses. The control apparatus determines a designated port for each of the plurality of trunks from among constituent ports of the each trunk. When one of the plurality of first relay apparatuses receives a predetermined control target packet from one of the plurality of second relay apparatuses, the control apparatus causes the plurality of first relay apparatuses to transmit the predetermined control target packet via a first relay apparatus including a designated port for one of the plurality of trunks, to which a port of the one first relay apparatus receiving the predetermined control target packet belongs. | 2015-04-23 |
20150110108 | DISTRIBUTED DATA TRANSMISSION IN DATA NETWORKS - Systems and methods are disclosed for distributed data transmission in an RF mesh network or other data network. An exemplary system includes at least two distribution devices. A first distribution device can receive a first data message that includes a first header and payload data. The first distribution device can determine that the second distribution device is not identified in the first header as receiving the payload data. The first distribution device can generate a second data message based on determining that the second distribution device is not identified in the first header. The second data message includes the payload data and the second header. The second header identifies the second distribution device as being selected to receive the payload data. The first distribution device transmits the second data message to the second distribution device. | 2015-04-23 |
20150110109 | PATHWAY DECISION FORWARDING FOR RACK DOMAINS - Methods and systems for improved pathway decision forwarding for rack domains include a gravity well forwarding protocol that enables local forwarding decisions at each network node involved with forwarding packets. The gravity well forwarding protocol may administer gravity well values for each of a plurality of rack domain nodes in a rack domain. The local forwarding decisions may involve selecting output ports corresponding to a higher/lower gravity well value at a network switching element, depending on a destination gravity well value associated with a network packet. Assignment of the gravity well values among the rack domain nodes may be used according to considerations, including security considerations, throughput considerations, loading considerations, redundancy considerations, physical location, and/or physical proximity, among other considerations, in the rack domain. | 2015-04-23 |
20150110110 | System and Method for a Flexible Number of Lookups in Pipeline-Based Packet Processors - A system and method for a flexible number of lookups in pipeline-based packet processors. Pipeline-based packet processors can be configured to allow multiple lookups per physical table. In one embodiment, a start of packet (SOP) cell is assigned to a first slot of a packet processing pipeline, and a non-SOP cell is assigned to a second slot of a packet processing pipeline. Access of a table by the second slot can be usurped by the SOP cell in the first slot. | 2015-04-23 |
20150110111 | Forward Packet with Edge Device - When a User Edge Device (UED) receives a unicast packet from a user side, the UED searches in a Media Access Control (MAC) table. When a matching entry in the MAC table is found, the UED forwards the unicast packet locally. When no matching entry in the MAC table is found, the UED transmits the unicast packet to a Network Edge Device (NED). When the UED receives a broadcast packet from the user side, the UED broadcasts the broadcast packet within a same Virtual Local Area Network (VLAN) of a local site and forwards to the NED. | 2015-04-23 |
20150110112 | NETWORK SYSTEM CAPABLE OF ENHANCING CONNECTION PERFORMANCE - A network system capable of enhancing connection performance includes a first connection object, a second connection object, and a virtual lease line (VLL) network. The VLL network includes a number of router devices, a number of path control devices, and a management server. Each router device is coupled to one corresponding path control device, and each router device and the corresponding path control device are located in one corresponding area. The management server is coupled to all of the path control devices; the management and the path control devices establish a VLL constituted by a number of router devices according to areas in which the first connection object and the second connection object locates. The first connection object and the second connection object are coupled to each other and communicate with each other via the VLL established in the VLL network. | 2015-04-23 |
20150110113 | PACKET PARSING AND KEY GENERATION IN A NETWORK DEVICE - A packet being processed by a network device is parsed by a programmable processing unit executing computer readable instructions stored in a non-transitory computer readable storage medium. Parsing the packet includes identifying one or more protocol layers within a header of the packet, identifying respective locations of protocol headers within the header of the packet, and providing the respective identified locations of protocol headers within the header of the packet to a hardware key generator block. A lookup key corresponding to the packet is generated by the key generator block using the respective identified locations. Generating the lookup key includes extracting, using an identified location of a protocol header, one or more fields from the corresponding protocol header. The lookup key is provided to a lookup engine. A lookup operation with respect to the packet is performed by the lookup engine and based on the lookup key. | 2015-04-23 |
20150110114 | Processing Concurrency in a Network Device - One or more processing operations with respect to a packet are performed at a packet processing node of a network device, the packet processing node configured to perform multiple different processing operations with respect to the packet. A first accelerator engine is triggered for performing a first additional processing operation with respect to the packet. The first additional processing operation constitutes an operation that is different from the multiple different processing operations that the packet processing node is configured to perform. The first additional processing operation is performed by the first accelerator engine. Concurrently with performing the first additional processing operation at the first accelerator engine, at least a portion of a second additional processing operation with respect to the packet is performed by the packet processing node, the second additional processing operation not dependent on a result of the first additional processing operation. | 2015-04-23 |
20150110115 | METHOD, DEVICE AND SYSTEM FOR SESSION ROUTING - A method, a device and a system for session routing are provided. The method includes: when a first terminal enters a first network in which a first routing device is located, the first routing device obtains an address of a second routing device in a second network; the first routing device establishes a tunnel with the second routing device according to the address of the second routing device; and the first routing device maintains a session between the first terminal and the second routing device through the tunnel. There is no need to set a home network for the terminal, and since the routing device to which the terminal belongs varies with the network in which the terminal is located, the communication traffic of the terminal may not be concentrated on one routing device for forwarding, thus reducing the processing load of a single routing device. | 2015-04-23 |
20150110116 | METHOD AND APPARATUS FOR PROCESSING OPERATION REQUEST IN STORAGE SYSTEM - According to embodiments of the present invention, in a storage system, a switch receives an operation request, where the operation request carries request identification; the switch queries, according to the request identification, a flow table of the switch to obtain a flow table entry matching the operation request; and the switch forwards the operation request to a target storage device among storage devices according to a forwarding rule of the matching flow table entry. By using a characteristic of a SDN, the operation request is processed according to the forwarding rule of the flow table entry of the switch, thereby implementing load balancing of the storage devices and reducing information interaction between the storage devices. | 2015-04-23 |
20150110117 | Multi-Link Aggregation Method and Device - Embodiments of the present invention disclose a multi-link aggregation method, including: establishing, by a first device, a transparent transmission channel with a second device, where the transparent transmission channel spans multiple links connected to the first device and the second device; performing, by the first device, network address translation on a first target packet to obtain a second target packet; and transmitting, by the first device, the second target packet to the second device through the transparent transmission channel, so that the second device performs network address translation on the second target packet to obtain a third target packet, and the second device sends the third target packet to a target device identified by destination address information of the first target packet | 2015-04-23 |
20150110118 | Method of processing disordered frame portion data units - A method of encapsulating data units of at least one encoded video frame into a data stream, said data units representing frame portions of the video frame, wherein said data stream is associated with an ordering information indicating the compliance of the order of the data units with a nominal data unit decoding order. Embodiments of the invention provide flexible transmission with robust and flexible decoders. | 2015-04-23 |
20150110119 | VIRTUAL GATEWAY FOR MACHINE TO MACHINE CAPILLARY NETWORK - A virtual gateway for communicating between one or more remote machine to machine capillary networks and a local base transceiver station includes an interface for communicating with a local base transceiver station. The interface emulates a Radio Link Control (RLC) protocol in the communication. The virtual gateway also includes an interface for communicating with one or more remote capillary networks and a SIM emulation component for emulating a SIM card. The SIM card is used in association with the interface for communicating with the local base transceiver station. | 2015-04-23 |
20150110120 | MULTI-PROTOCOL SUPPORT OVER ETHERNET PACKET-SWITCHED NETWORKS - Described are methods and communications network for carrying pseudowires over packet-switched network. A communication network includes a packet-switched network (PSN), a first provider edge (PE) device in communication with a second PE device through the PSN, and a pseudowire (PW) established between the PE devices for emulating a service across the PSN. The PW has a Virtual Circuit Connection Verification (VCCV) control channel that carries an Ethernet Operations, Administration, and Maintenance (OAM) message. In some embodiments, various data plane encapsulation formats enable a PW to emulate an Ethernet or a non-Ethernet service over an Ethernet PSN. Each encapsulation format includes an Ethernet tunnel header and a PW header that encapsulates an Ethernet or non-Ethernet payload. | 2015-04-23 |
20150110121 | METHOD FOR PROCESSING INFORMATION, FORWARDING PLANE DEVICE AND CONTROL PLANE DEVICE - Embodiments of the present invention provide a method for processing information, a forwarding plane device and a control plane device. The method includes: receiving a data packet, and extracting characteristic information of the data packet; searching for context information corresponding to the characteristic information of the data packet; buffering or discarding the data packet if the context information is not found; and sending an event reporting message to a gateway control plane device, wherein the event reporting message carries the characteristic information of the data packet, so that the gateway control plane device acquires the context information corresponding to the characteristic information of the data packet. In this way, the gateway forwarding plane device can acquire context information to the greatest extent under the condition that the context information is lost, thereby ensuring accurate forwarding of the data packet to the greatest extent. | 2015-04-23 |
20150110122 | MAINTAINING A FABRIC NAME ACROSS A DISTRIBUTED SWITCH - Techniques are provided for distributing a fabric name to switching elements of a distributed switch configured to forward Fibre Channel over Ethernet (FCoE) frames. A distributed switch membership distributed (DMFD) message is transmitted that includes names of all switching elements in the distributed switch, and further includes a fabric descriptor that contains the fabric name. | 2015-04-23 |
20150110123 | LIMITATION OF SERIAL LINK INTERFERENCE - A plurality of frames of data are transmitted over a serial interface in a manner that limits interference on the interface. This involves generating a pseudo-random number and asserting a read control signal at a moment in time, wherein a timing of the moment in time is influenced by the pseudo-random number. In response to the asserted read control signal, a frame of data is read from a data buffer. The read frame of data is then transmitted over the serial interface. A number of alternative embodiments are possible, such as embodiments in which buffer read operations are triggered based on the buffer fill level, and other embodiments in which buffer read operations are triggered by a timer. By using the pseudo-random number to influence the buffer read operations, timing coherency between the reading of frames is made low, thereby limiting interference. | 2015-04-23 |
20150110124 | QUALITY OF SERVICE IN MULTI-TENANT NETWORK - A data handling system network includes a data handling system that is communicatively coupled to a switch by a network. The data handling system includes one or more logical partitions. Each logical partition includes a plurality of virtual switches and a plurality of virtual network interface cards. Each virtual network interface card is associated with a particular virtual switch and includes a plurality of QoS queues. The switch includes one or more switch partitions. Each switch partition includes a plurality of QoS queues that are associated with the QoS queues of the virtual network interface card. A packet is received with the virtual switch and the virtual switch sets and associates a QoS priority flag with the received packet. The virtual switch forwards the packet to a QoS queue comprised within the virtual network interface card based upon the QoS priority flag. | 2015-04-23 |
20150110125 | VIRTUAL MEMORY PROTOCOL SEGMENTATION OFFLOADING - Methods and systems for a more efficient transmission of network traffic are provided. According to one embodiment, payload data originated by a user process running on a host processor of the computer system is fetched by an interface of the computer system by performing direct virtual memory addressing of a user memory space of a system memory of the computer system on behalf of a network processor of the computer system. The direct virtual memory addressing maps a physical address of the payload data to a virtual address. The payload data is segmented by the network processor across one or more packets. | 2015-04-23 |
20150110126 | CUT THROUGH PACKET FORWARDING DEVICE - An electronic device communicates according to a network protocol that defines data packets, for example EtherCAT. The device has a processor for performing input control on incoming data packets and performing output control on outgoing data packets, and a shared FIFO buffer comprising a multiuser memory. An input unit receives input data, detects the start of a respective data packet, subdivides the data packet into consecutive segments, one segment having a predetermined number of data bytes, and transfers the segment to the FIFO buffer before the next segment has been completely received. The processor accesses, in the input control, the multiuser memory for processing the segment, and, in the output control, initiates outputting the output packet before the corresponding input data packet has been completely received. An output unit transfers the segment from the FIFO buffer, and transmits the segment to the communication medium. | 2015-04-23 |
20150110127 | METHOD AND AN APPARATUS FOR TRANSMITTING MESSAGES IN HOME NETWORK SYSTEM - Relating to a home network system and a home entertainment system, a method and an apparatus for transmitting packets in a home network system and a home entertainment system are disclosed. Additionally, a method for identifying devices to which the packets are to be transmitted and an apparatus for supporting the same are also disclosed herein. According to an embodiment, a method for transmitting a packet in a high definition base transmission (hereinafter referred to as HDBaseT) system includes the steps of receiving data from a source device in a transmission adaptor, converting the received data from the transmission adaptor to a downstream packet, in order to transmit the converted downstream packet to a receiving adaptor through an HDBaseT network, and transmitting the converted downstream packet to the receiving adaptor; At this point, the downstream packet may include a hierarchical identifier for identifying HDBaseT entities to which the downstream packet is to be transmitted. | 2015-04-23 |
20150110128 | SYSTEM AND METHOD FOR HIERARCHICAL LINK AGGREGATION - Systems and methods for hierarchical link aggregation are disclosed. A system for hierarchical link aggregation may include a network interface having a plurality of physical ports. A first plurality of the physical ports may be configured as member ports of a first link aggregation group (LAG). A second plurality of the physical ports may be configured as member ports of a second LAG. The first LAG and second LAG may be configured as member logical ports of a third LAG. | 2015-04-23 |
20150110129 | EFFICIENT MACHINE-TO-MACHINE DATA NOTIFICATIONS - A server device may be configured to store association information that associates a group of machine-to-machine (“M2M”) devices with a group of customer devices; identify, based on the association information, a particular customer device, of the group of customer devices, associated with one or more M2M devices from which M2M data was received by the server device; output, using a connectionless communication technique, a notification to the particular customer device, the notification being based on the received M2M data; receive a request for M2M data associated with the particular customer device; and output the received M2M data to the particular customer device. | 2015-04-23 |
20150110130 | DYNAMIC MEDIUM SWITCHING FOR HYBRID NETWORKS - A method and apparatus for dynamic medium switching in a hybrid network. A method for packet transmission by a combo device includes maintaining a wireless network confidence rating value that is indicative of packet transfer reliability of a wireless network accessed by the device. A wired network confidence rating value that is indicative of packet transfer reliability of a wired network accessed by the device is also maintained. One of the wireless network and the wired network to be used for initial transmission of the data packet is selected based on which of the wireless confidence rating value and the wired confidence rating value is indicative of a higher likelihood of the packet being successfully transmitted. The packet is routed to be transmitted via the selected network. | 2015-04-23 |
20150110131 | SECURE COMMUNICATIONS USING ADAPTIVE DATA COMPRESSION - Aspects of the subject technology relate to systems, methods, and machine-readable media for communicating using adaptive data compression. A system is configured to compare operation of an encrypted communications channel to at least one operational threshold for the encrypted communications channel and select a level of compression for the encrypted communications channel based on the comparing. The system is further configured to compress data packets to be transmitted over the encrypted communications channel in accordance with the level of compression, encrypt the data packets, and transmit, via a network, the encrypted and compressed data packets to a destination. | 2015-04-23 |
20150110132 | DYNAMICALLY TUNABLE HETEROGENEOUS LATENCIES IN SWITCH OR ROUTER CHIPS - A device with dynamically tunable heterogeneous latencies includes an input port configured to receive a packet via a network, and a processing module configured to determine multiple values corresponding to a number of qualifying parameters associated with the packet. The processing module may use the values to generate a selector value and may allocate a latency mode to the packet based on the selector value. | 2015-04-23 |
20150110133 | DATA TRANSMISSION METHOD, NETWORK ELEMENT DEVICE AND COMMUNICATION SYSTEM - Embodiments of the present invention provide a data transmission method, a network element device and a communication system. The technical solutions provided in the embodiments of the present invention can encapsulate some services having a high packet error resilient into UDP-Lite protocol packets, which, compared with the prior art, omits check on loads of the messages, thereby significantly improving data transmission efficiency. | 2015-04-23 |
20150110134 | Adapting a Jitter Buffer - A receiver receives a first data stream and a second data stream from a transmitting device over a packet-based communication network, the first data stream being of a first media type (e.g. audio) and the second data stream being of a second media type (e.g. video). The first jitter buffer will buffer each of a plurality of portions of the first data stream as they are received via the receiver, and apply a de-jittering delay before outputting each portion of the first data stream (e.g. audio stream) to be played out through the receiving device. The jitter buffer controller receives information on the second data stream (e.g. video stream), and adapts the de-jittering delay of the first jitter buffer (e.g. audio jitter buffer) in dependence on the information on the second data stream (e.g. information on the video stream). | 2015-04-23 |
20150110135 | Jitter Buffer - Methods, transmitter, receiver and computer program product for transmitting or receiving data of a real-time communication event, the data being transmitted from the transmitter to a jitter buffer of the receiver. At least one processing parameter describing how data is to be processed for transmission from the transmitter to the jitter buffer in the real-time communication event is determined at the transmitter. Data is processed for transmission from the transmitter to the jitter buffer in accordance with the determined at least one processing parameter. Control information based on the determined at least one processing parameter is transmitted from the transmitter to the receiver, wherein the control information is for use by the receiver to control a state of the jitter buffer. The processed data is transmitted from the transmitter to the jitter buffer of the receiver in the real-time communication event. | 2015-04-23 |
20150110136 | Movable Modular Housing for a Short Pulse Laser with Integrated Amplifier - The invention relates to a short pulse laser ( | 2015-04-23 |
20150110137 | SINGLE-MODE QUANTUM CASCADE LASERS WITH ENHANCED TUNING RANGE - In one aspect, semiconductor lasers are provided. A semiconductor laser described herein comprises substrate and a cavity formed on the substrate, the cavity comprising an asymmetric Mach-Zehnder (AMZ) interferometer structure positioned between two straight waveguide segments, the straight waveguide segments and first and second arms of the AMZ interferometer structure comprising epitaxial semiconductor layers, wherein the second arm of the AMZ interferometer structure has a temperature control architecture independent of the first arm. | 2015-04-23 |
20150110138 | OPTICAL FREQUENCY MULTIPLICATION - An apparatus for generating laser radiation at a frequency multiplied as compared with a base frequency, has an optical resonator, in which input laser radiation circulates resonantly at the base frequency, and at least one conversion element through which the input laser radiation circulating in the optical resonator radiates, and which converts this radiation, at least in part, into output laser radiation at the multiplied frequency. At least one compensation element is provided, through which the input laser radiation circulating in the optical resonator also radiates, and which absorbs this radiation, in part, wherein the compensation element balances out a temperature-dependent variation of the optical path length of the input laser radiation in the conversion element, at least in part. Furthermore, a system generates laser radiation. | 2015-04-23 |
20150110139 | ACTUATION DEVICE FOR A LASER DIODE, LASER PROJECTION SYSTEM AND METHOD FOR SPECKLE REDUCTION IN A LASER DIODE - An actuation device for a laser diode includes: a first driver device which is set up to generate a high-frequency modulated actuation signal and to feed the signal into the laser diode for speckle suppression, and an evaluation circuit, which is coupled with the first driver device, and which is set up to output to the first driver device an intensity signal indicating the intensity of the light emitted by the laser diode and a control signal as a function of the intensity signal in order to regulate the high-frequency modulated actuation signal. | 2015-04-23 |
20150110140 | CIRCUIT SYSTEM AND MANUFACTURING METHOD FOR SAME - A circuit system includes: a first optoelectronic semiconductor component situated with an n-conductive surface facing an electrically conductive support surface and connected to the support surface in an electrically conductive manner; and a second optoelectronic semiconductor component situated with a p-conductive surface facing the support surface and connected to the support surface in an electrically conductive manner. | 2015-04-23 |
20150110141 | DRIVING CIRCUIT AND ILLUMINATION DEVICE HAVING LIGHT-EMITTING ELEMENTS - The present invention discloses a driving circuit including a rectifying circuit and a first current-controlling circuit. Input terminals of the rectifying circuit are connected to output terminals of an AC power source. The first current-controlling circuit and a plurality of light-emitting elements be driven are connected in series, and then are connected between two output terminals of the rectifying circuit. The driving circuit further includes a plurality of switches and a switch-controlling circuit; the switches are connected in parallel with two terminals of one or some light-emitting elements connected in series to form many light-emitting element subunits. Control-signal output terminals of the switch-controlling circuit are connected to control terminals of the switches respectively, to control the switches in an ON-OFF state according to an instantaneous value of a DC voltage outputted from the rectifying circuit, for controlling an amount of light-emitting elements which should be lighten. | 2015-04-23 |
20150110142 | OPERATING VERTICAL-CAVITY SURFACE-EMITTING LASERS - Methods, systems, and computer-readable mediah are provided for operating a vertical-cavity surface-emitting laser. Operating a vertical-cavity surface-emitting laser can include sending a signal to a driver to decrease an optical power of a vertical cavity surface emitting laser transmitter, and sending a signal to the driver associated with increasing the optical power by a particular amount in response to determining that the optical power is insufficient for reception by a receiver. | 2015-04-23 |
20150110143 | ADJUSTABLE IMPEDANCE LASER DRIVER - An assembly that includes a laser diode and a driver circuit that operates to give the assembly an adjustable impedance. The driver circuit adjusts impedance by repeatedly alternating between two operational phases. In one operational phase, current is primarily or fully supplied through the laser diode using a first current path being from the first supply node, to the laser diode, and into the second supply node. In the other operational phase, current is supplied through the laser diode using a recirculating second current path. The current through the laser diode increases during the first operational phase, and decays during the second operational phase. For a given applied voltage level between the first and second supply nodes, the duty cycle of the first and second operational phases may be adjusted so that the current through the laser diode is approximately a target current. | 2015-04-23 |
20150110144 | DISTRIBUTED FEEDBACK-LASER DIODES - A distributed feedback-laser diode may include a substrate, a lower cladding layer having a grating on the substrate, an active layer disposed on the lower cladding layer, a first upper cladding layer disposed on the active layer, a phase-shift region extending in a first direction on the first upper cladding layer, and a ridge waveguide layer extending in a second direction crossing the first direction on the phase-shift region. | 2015-04-23 |
20150110145 | Semiconductor Laser with Cathode Metal Layer Disposed in Trench Region - A laser diode includes a substrate and a junction layer disposed on the substrate. The junction layer forms a quantum well of the laser diode. The laser diode includes a junction surface having at least one channel that extends through the junction layer to the substrate. The at least one channel defines an anode region and a cathode region. A cathode electrical junction is disposed on the junction surface at the cathode region, and an anode electrical junction is disposed on the junction surface and coupled to the junction layer at the anode region. A cathode metal layer is disposed in at least a trench region of the channel. The cathode metal layer couples the substrate to the cathode electrical junction. | 2015-04-23 |
20150110146 | OPTICALLY PUMPED SOLID STATE LASER DEVICE WITH SELF-ALIGNING PUMP OPTICS - The present invention relates to an optically pumped solid state laser device, comprising a solid state laser medium ( | 2015-04-23 |
20150110147 | Thermometer Management System - A body of a thermometer ( | 2015-04-23 |
20150110148 | Superheat Sensor - A method of sensing superheat includes the steps of: (a) connecting a fluid inlet member of a superheat sensor to one of a plurality of fluid systems; (b) allowing fluid to flow from the fluid system to which the superheat sensor is connected to the superheat sensor; (c) sensing a temperature of the fluid in the fluid system with one of an internal temperature sensor mounted within a housing of the superheat sensor and an external temperature sensor mounted outside of the housing of the superheat sensor; and (d) calculating a superheat of the fluid in the fluid system. | 2015-04-23 |
20150110149 | METHOD AND APPARATUS FOR DETERMINING AN ICING CONDITION STATUS OF AN ENVIRONMENT - The method includes receiving a value of a quantity of heat applied to at least a portion of a structure, said structure having a sensor surface exposed to the environment, receiving a temperature measurement of the sensor surface, receiving a wind speed measurement of the environment, receiving an ambient temperature measurement of the environment, determining a heat transfer projection of the sensor area using at least the wind speed measurement, the ambient temperature measurement, and one of the value of a quantity of heat and a target temperature of the sensor surface; comparing the heat transfer projection to an associated heat transfer value, and generating a signal indicating the icing condition status based on the comparison. | 2015-04-23 |
20150110150 | THERMAL PROPERTY MICROSCOPY WITH FREQUENCY DOMAIN THERMOREFLECTANCE AND USES THEREOF - The present invention relates to frequency domain thermoreflectance (FDTR) imaging of a thermophysical property or a set of thermophysical properties of a sample. A method comprises measuring the amplitude and/or phase of a beam of radiation reflected from a sample surface, while a heat source applied to the sample is modulated at at least two modulation frequencies simultaneously. Such measurement can be reiterated as a probe beam is scanned across the sample surface or a portion thereof. A 2D image or map of a thermophysical property or a set of thermophysical properties can be generated from data processing. Also provided herein is an apparatus for performing FDTR imaging. | 2015-04-23 |
20150110151 | Method and Apparatus for Measuring Rail Surface Temperature - A method and apparatus suitable for measuring temperature of a surface of a segment of a rail using a sensor underneath a moving or a stationary rail car. The measurement is based on intensities of infrared radiation emitted by the surface. The method uses relationships among emissivity, radiation intensity and surface temperature without assuming an emissivity value for the surface. The apparatus comprises radiation detectors containing sensing elements, a lens systems, and analog to digital conversion board to convert radiation intensities to temperature. | 2015-04-23 |
20150110152 | DEVICE FOR NON-CONTACT TEMPERATURE MEASUREMENT AND TEMPERATURE MEASUREMENT METHOD - In a device ( | 2015-04-23 |
20150110153 | TEMPERATURE SENSOR FOR RETAIL ENVIRONMENTS - A system and method for monitoring temperatures in retail environment. The method includes associating temperature monitoring electronic shelf labels with a product and monitoring the temperature at the temperature monitoring electronic shelf label. When the monitored temperature is outside a predetermined range for the associated product, a warning is generated and transmitted to system users. Temperatures are also stored for each monitored product and zone for subsequent review. The temperature monitoring electronic shelf label comprises a temperature sensor integrated with an electronic shelf label, is mounted in a retail environment with temperature-sensitive products, and is connected to a low voltage power supply and communicates with an area controller. | 2015-04-23 |
20150110154 | TEMPERATURE SENSORS - A temperature sensor includes a sensor body and a wedge extension. The sensor body extends from a sensor base to an opposed sensor tip along a longitudinal axis. The sensor body has a leading edge and opposed trailing edge. The sensor body also has an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. The wedge extension is on the sensor body between the sensor tip and the sensor base on the leading edge of the sensor body. | 2015-04-23 |
20150110155 | ELECTRIC VEHICLE BATTERY THERMOCOUPLE - An example electric vehicle battery thermocouple includes a temperature sense lead of a first material, and an electric vehicle battery component of a second material different than the first material. | 2015-04-23 |
20150110156 | THERMOREFLECTANCE-BASED CHARACTERIZATION OF THERMOELECTRIC MATERIAL PROPERTIES - Systems and methods for characterizing one or more properties of a material are disclosed. In some embodiments, the one or more properties include one or more thermal properties of the material, one or more thermoelectric properties of the material, and/or one or more thermomagnetic properties of the material. In some embodiments, a method of characterizing one or more properties of a sample material comprises heating the sample material and, while heating the sample material, obtaining one or more temperature measurements for at least one surface of the sample material via one or more thermoreflectance probes and obtaining one or more electric measurements for the sample material that correspond in time to the one or more temperature measurements. The method further comprises computing one or more parameters that characterize one or more properties of the sample material based on the measurements. | 2015-04-23 |
20150110157 | Time-Domain Temperature Sensing System with a Digital Output and Method Thereof - A time-domain temperature sensing system includes a cyclic delay line, a path selection circuit and a counter. The cyclic delay line includes a plurality of logic components connected. The path selection circuit connects with the cyclic delay line and the counter connects with the path selection circuit. The cyclic delay line is operated to sense and convert a temperature into a time pulse to generate a temperature-related time pulse width signal, and the cyclic delay line is further operated to measure the temperature-related time pulse width signal via the path selection circuit. The cyclic delay line is operated to convert the temperature into the time pulse and the counter is further operated to convert the temperature-related time pulse width signal into a digital signal via the path selection circuit, thereby generating a temperature-to-digital signal. | 2015-04-23 |
20150110158 | 3D THERMAL DETECTION CIRCUITS AND METHODS - A circuit includes sensing circuitry including at least one sensing element configured to output at least one temperature-dependent voltage. A compare circuit is configured to generate at least one intermediate voltage in response to comparing the at least one temperature-dependent voltage to a feedback voltage. A control circuit is configured to generate at least one control signal in response to the intermediate voltage. A switching circuit is configured to couple a capacitor coupled to a feedback node to one of a first voltage supply and a second voltage supply in response to the at least one control signal to generate an output signal having a pulse width that is based on a temperature sensed by the sensing circuitry. | 2015-04-23 |
20150110159 | DYNAMIC HOPPING SEQUENCE COMPUTATION IN CHANNEL HOPPING COMMUNICATION NETWORKS - In one embodiment, a device in a channel hopping, communication network independently maintains a slot counter, and computes a channel identification (ID) based on a function having inputs of a unique feature of the device, ii) a current slot of the slot counter, and iii) a set of possible channel IDs. Accordingly, the device configures its radio to receive on the computed channel ID for the respective current slot. In another embodiment, the device may determine, for a neighbor device, a current neighbor slot and unique neighbor feature, and correspondingly computes a neighbor channel ID based on the function using the unique neighbor feature, the current neighbor slot, and the set of a possible channel IDs. As such, the device configures its radio to transmit on the computed neighbor channel ID for the respective current neighbor slot. | 2015-04-23 |
20150110160 | DATA TRANSMISSION METHOD AND APPARATUS - A method for data transmission in a radio data transmission system having a plurality of parallel single-input single-output or multiple-input multiple-output channels over which the data is transmitted, the data represented by a plurality of data symbols, the data symbols being spread prior to transmission by a plurality of spreading sequences is described. The method comprises determining a system value λk for each signature sequence k of a plurality of signature sequences K, wherein the system value λk is indicative of a signal-to-noise ratio of the associated signature sequence k; determining a number of signature sequences K* to be used for spreading the data symbols in accordance with the system values λk associated with the plurality of signature sequences K, selecting the signature sequences S to be used to spread the data symbols from the plurality of signature sequences K in accordance with the system values λk associated with the plurality of signature sequences K, wherein the number of signature sequences selected corresponds to the determined number of signature sequences K*, and spreading the data symbols using the selected signature sequences S. | 2015-04-23 |
20150110161 | Mixer Unit - A mixer unit ( | 2015-04-23 |
20150110162 | ELECTRICAL TRANSCEIVER FOR SYNCHRONOUS ETHERNET - Disclosed is an electrical transceiver for synchronous Ethernet, including: a first interface connected with a host; a second interface including a physical layer (PHY) transceiver connected with a serial link; and a processor connected with the first interface and the second interface, wherein the processor includes a timing control unit controlling a transmission signal transmitted to the second interface from the first interface and a reception signal transmitted to the first interface from the second interface to have the same time delay. | 2015-04-23 |
20150110163 | PHY PAYLOAD OVER MULTIPLE TONE MASKS USING SINGLE TONE MASK PHY HEADER INFORMATION - A method of communications includes compiling a data frame for physical layer (PHY) by a first communications device at a first communications node on a network. The data frame includes a single tone PHY header portion and a data payload portion in a set of tones including at least one tone having a frequency different from a frequency of the single tone. The PHY header portion includes tone mask identification information identifying the set of tones. The first communications device transmits the data frame over the powerline to a second communications device at a second communications node on the powerline. The second communications device receives the data frame, and decodes the data payload using the tone mask identification information in the PHY header portion. | 2015-04-23 |
20150110164 | OFDM PRE-EQUALIZING - For example in case of an OFDM multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements ( | 2015-04-23 |
20150110165 | Transmitter Training Using Receiver Equalizer Coefficients - A method of adjusting a post-cursor tap weight in a transmitter FIR filter in a high-speed digital data transmission system. A receiver, over a forward channel, receives a signal from the transmitter and equalizes the received signal using an adaptive analog equalizer coupled to the forward channel and a decision feedback equalizer (DFE) coupled to the analog equalizer. A gain coefficient used to adjust the peaking by the analog equalizer is adapted using an error signal generated by the DFE. The post-cursor tap weight of the transmitter filter is adjusted up or down based on a comparison of the gain coefficient to a set. of limits. The post-cursor tap weight is transmitted to the transmitter over a reverse channel and then equalizers in the receiver readapt. Alternatively, eye opening data and a DFE tap coefficient are used to determine whether the post-cursor tap weight is adjusted up or down. | 2015-04-23 |
20150110166 | Mechanics and Processes for Remote Control of Live Video Production - Mechanics and processes for remote control of live video production are disclosed herein. Producing a live, online video currently requires having direct control of the encoding system. The essential practice of the mechanics and processes is the design of a web service allowing encoder functionality to be controlled remotely, via a web interface or mobile device application (a.k.a. app). | 2015-04-23 |
20150110167 | CARRIAGE OF VIDEO CODING STANDARD EXTENSION BITSTREAM DATA USING MPEG-2 SYSTEMS - In one example, a device for processing video data includes a memory for storing an enhancement layer of video data coded according to an extension of a video coding standard, and one or more processors configured to decode a hierarchy extension descriptor for an elementary stream including the enhancement layer, wherein the hierarchy extension descriptor includes data representative of two or more reference layers on which the enhancement layer depends, wherein the two or more reference layers include a first enhancement layer, conforming to a first scalability dimension, and a second enhancement layer, conforming to a second scalability dimension, and wherein the first scalability dimension is different than the second scalability dimension, and to process the video data based at least in part on the data representative of the two or more reference layers. | 2015-04-23 |
20150110168 | VIDEO DATA TRANSMISSION METHOD AND APPARATUS - The present invention relates to a video data coding method and apparatus, where the method includes: obtaining a video file; compressing the obtained video file into a video stream; adding indication information before data of each group of pictures among the data of the multiple groups of pictures in the video stream, where a user terminal or a base station learns, based on the indication information, a priority and a size of each data frame in the data of the group of pictures behind the indication information. In the transmission method provided by an embodiment of the present invention, a base station can perform differentiated transmission of the video stream based on the obtained priority information and size information, and a handheld terminal can also request, the base station to perform differentiated transmission of video data, thereby improving user experience of the terminal. | 2015-04-23 |
20150110169 | ENCODING METHOD FOR DISTRIBUTION OF MULTIMEDIA CONTENTS WITH ENFORCEMENT OF COMMERCIAL ADVERTISEMENT - Methods and systems for encoding multimedia content with enforcement of commercial advertisements are discussed in the disclosure. Some of the methods may require all or part of a commercial advertisement segment to be viewed and/or decoded in order to decode an entertainment segment. In some implementations, the disclosure provides for inserting commercial advertisements in a video stream. The various implementations discussed herein may require a viewer to watch all or part of a commercial segment in order to view an entertainment segment of multimedia content. | 2015-04-23 |
20150110170 | Method and Apparatus for Simplified Depth Coding with Extended Prediction Modes - A method and apparatus for Simplified Depth Coding (SDC) with extended Intra prediction modes are disclosed. Embodiments of the present invention use an extended Intra prediction mode set including Horizontal mode and Vertical mode. When the Horizontal mode is selected, the prediction samples for the current depth block are derived based on a reconstructed neighboring depth column adjacent to a left block boundary of the current depth block by generating rows of the prediction samples from the reconstructed neighboring depth column. When the Vertical mode is selected, the prediction samples for the current depth block are derived based on a reconstructed neighboring depth row adjacent to a top block boundary of the current depth block by generating columns of the prediction samples from the reconstructed neighboring depth row. | 2015-04-23 |
20150110171 | METHOD FOR MOTION ESTIMATION AND APPARATUS FOR PROCESSING IMAGE - Provided are a method for motion estimation and an apparatus for processing an image. The method includes extracting a pattern from any one frame, classifying the extracted pattern as any one of predetermined basic patterns, counting basic patterns of regions included in macroblocks according to types of the basic patterns to set representative basic patterns of the macroblocks, calculating at least one of a sum of absolute difference (SAD) term coefficient and a smoothness constraint (SC) term coefficient from a correlation between representative basic patterns of macroblocks included in a macroblock group, and calculating a cost function result using at least one of the calculated SAD term coefficient and SC term coefficient. | 2015-04-23 |
20150110172 | PARALLEL DECODING METHOD FOR LAYERED VIDEO CODING - Systems, methods, and instrumentalities are disclosed for parallel decoding of a layered video stream. A base layer video stream and an enhancement layer video stream may be received. A picture of the base layer video stream may be decoded via a first processing thread. An inter-layer reference picture associated with the base layer video stream may be generated via the first processing thread. The inter-layer reference picture may include one or more motion fields. A picture of the enhancement layer video stream may be decoded via a second thread using the inter-layer reference picture. The first processing thread and the second processing thread may be synchronized such that the decoding of the picture of the enhancement layer video stream is performed after the generation of the inter-layer reference picture. | 2015-04-23 |
20150110173 | VIDEO CODING USING SCATTER-BASED SCAN TABLES - Scatter-based scan tables are used to encode and decode video streams. Scatter scan patterns transform coefficients between positions within a 2D array representing a block of a frame and positions within a 1D array for further encoding. By calculating a probability of whether a transform coefficient at a given position in a 2D array is non-zero, a scan order of the 2D array may be defined by a 1D array that groups the values most likely to be zero at the end of the 1D array for removal from a subsequent encoding process. This can reduce the amount of data in an encoded video stream. A decoder can use the same scatter scan pattern to rearrange a sequence of encoded transform coefficients in a 1D array into a 2D array for further decoding of an encoded block. | 2015-04-23 |
20150110174 | Reference Pixel Selection and Filtering for Intra Coding of Depth Map - A video codec configured to receive a current block and a plurality of neighboring pixels, wherein the current block comprises a first partition and a second partition, select one or more reference pixels from the plurality of neighboring pixels, and predict a plurality of pixels located in the second partition based on the reference pixels. | 2015-04-23 |
20150110175 | HIGH FREQUENCY EMPHASIS IN CODING SIGNALS - A decoder adapted to generate an intermediate decoded version of a video frame from an encoded version of the video frame, determine either an amount of high frequency basis functions or coefficients below a quantization threshold for at least one block of the video frame, and generate a final decoded version of the video frame based at least in part on the intermediate decoded version of the video frame and the determined amount(s) for the one or more blocks of the video frame, is disclosed. In various embodiments, the decoder may be incorporated as a part of a video system. | 2015-04-23 |
20150110176 | METHOD AND APPARATUS FOR CODING IMAGE INFORMATION, METHOD AND APPARATUS FOR DECODING IMAGE INFORMATION, METHOD AND APPARATUS FOR CODING AND DECODING IMAGE INFORMATION, AND SYSTEM OF CODING AND TRANSMITTING IMAGE INFORMATION - A decoding method decodes a bit stream in an image decoding apparatus. The method includes receiving a weight parameter that is added to a luma quantization parameter as the bit stream. The method also includes decoding, in a decoding unit in the image decoding apparatus, the bit stream, and generating a luma component of quantized coefficients and a chroma component of quantized coefficients. Further, the method includes performing, in a dequantization unit in the image decoding apparatus, dequantization on the luma component of quantized coefficients using the luma quantization parameter and the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of the luma quantization parameter weighted by an add operation of the weight parameter. In addition, the method includes performing, in a transform unit in the image decoding apparatus, an inverse orthogonal transform. | 2015-04-23 |
20150110177 | IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, AND IMAGE DECODING APPARATUS - An image coding method, comprising: subtracting a prediction signal from the input image signal for each coding unit, thereby generating respective prediction error signals; performing orthogonal transform and quantization on a corresponding one of the prediction error signals for each transform unit, eventually generating quantization coefficients; and coding pieces of management information indicating a structure of the transform units and the quantization coefficients into a tree structure. Each of the transform units corresponds to a corresponding one of leaf nodes in the tree structure. In the coding, for each leaf node, management information and a quantization coefficient are coded, eventually generating a coded signal in which the coded management information and the coded quantization coefficient are arranged in succession for each leaf node. | 2015-04-23 |
20150110178 | METHOD FOR GENERATING PREDICTION BLOCK IN AMVP MODE - A method for generating a prediction block in Advanced Motion Vector Prediction (AMVP) mode to reconstruct a prediction-coded video signal using a motion vector approximate to original motion information. An AMVP candidate list is generated using effective spatial and temporal AMVP candidates for a current Prediction Unit (PU). If the number of the effective AMVP candidates is smaller than a predetermined value, a motion vector having a predetermined value as a candidate to the AMVP candidate list. Then a motion vector corresponding to an AMVP index of the current PU from among motion vectors included in the AMVP candidate list is determined to be a motion vector predictor of the current PU. | 2015-04-23 |
20150110179 | METHOD OF APPLYING EDGE OFFSET - Provided is a method generates an edge index of a current sample, and applies an edge offset corresponding to the edge index to the current sample. The edge index is generated using the differences between a current sample and two neighboring samples determined by an edge offset type. Accordingly, the difference between original samples and reconstructed samples are effectively reduced by generating the optimum edge index. Also, the quantity of bits required for reducing the differences are reduced by fixing the sign of offset to positive or negative. | 2015-04-23 |
20150110180 | METHOD AND APPARATUS FOR INTRA TRANSFORM SKIP MODE - A method and apparatus for video coding including an Intra transform Skip mode is disclosed. When the transform Skip mode is ON for a transform unit, embodiments according to the present invention apply different coding processes to the transform unit. The coding process with the transform Skip mode ON uses a different scan pattern from the coding process with the transform Skip mode OFF. According to various embodiments, the transform Skip mode is enabled when the transform unit size is 4×4, the prediction unit and the transform unit having the same size, or the prediction unit uses an INTRA_N×N mode. When the transform Skip mode is enabled, a flag can be signaled in the bitstream to indicate the transform Skip mode selection. Furthermore, the flag can be incorporated in a picture level, a slice level or a sequence level of the video bitstream. | 2015-04-23 |
20150110181 | METHODS FOR PALETTE PREDICTION AND INTRA BLOCK COPY PADDING - A method is provided that includes receiving a bitstream. The method also includes parsing the bitstream for a flag indicating whether a palette was used from a first or second coding unit. The method also includes decoding the first coding unit using the palette from the first or second coding unit indicated by the flag. The palette is determined based on which palette of the first or second coding unit improves compression performance. Also, a method is provided that includes receiving a bitstream with a predicted pixel. A coding unit and a reference unit are identified. A number of pixels of the coding unit and the reference unit overlap. A set of available pixels and a set of unavailable pixels of the reference unit are identified. The predicted pixel of the set of unavailable pixels is estimated as a pixel of the set of available pixels. | 2015-04-23 |
20150110182 | IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, IMAGE CODING APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT - An image decoding method decodes a coded stream which includes processing units and a header of the processing units, and which is generated by coding a moving picture using inter prediction. The processing units includes at least one processing unit divided in a hierarchy, the hierarchy including a highest hierarchical layer in which a coding unit exists as a largest processing unit and a lower hierarchical layer in which a prediction unit exists. The method includes identifying, by parsing hierarchy depth information stored in the header and indicating a hierarchical layer higher than a lowest hierarchical layer in which a smallest prediction unit exits, a hierarchical layer which is indicated by the hierarchy depth information or a hierarchical layer higher than the indicated hierarchical layer. The hierarchical layer includes a prediction unit in which a reference index is stored. The prediction unit is decoded using the reference index. | 2015-04-23 |
20150110183 | IMAGE PREDICTIVE ENCODING AND DECODING DEVICE - An image predictive encoding device can efficiently encode an image, while suppressing an increase in prediction information and reducing the prediction error of a target block. In an image predictive encoding device, according to one embodiment, to produce a prediction signal of a partition in a target region, it is decided whether prediction information of a neighbouring region can be used. When prediction information of the neighbouring region can be used, a region width of the partition where the prediction information of the neighbouring region is used to produce the prediction signal is determined. The prediction signal of the target region is produced from a reconstructed signal based on at least one of the region width, the prediction information of the target region, and the prediction information of the neighbouring region. The prediction information, information identifying the region width, and a residual signal are encoded. | 2015-04-23 |
20150110184 | DYNAMIC IMAGE PREDICTIVE ENCODING AND DECODING DEVICE, METHOD, AND PROGRAM - A video predictive encoding device can include an input device to implement input of pictures constituting a video sequence; an encoder to encode the pictures by intra-prediction or inter-prediction and to encode output order information of each picture and information about a picture type of each picture to generate compressed picture data. The compressed picture data includes a picture to serve as a random access point. The video predictive coding device can also include a reconstruction unit to decode the compressed picture data to reconstruct pictures; a picture storage unit to store one or more of the reconstructed pictures as reference pictures to be used for encoding of a subsequent picture; and a controller to determine the picture type and control the picture storage unit based on the determined picture type. The controller can label each picture as one of following three types: CRA picture, type-1 picture and type-2 picture. | 2015-04-23 |
20150110185 | METHOD AND APPARATUS FOR ENCODING INTRA PREDICTION INFORMATION - A method for encoding an intra prediction mode according to the present invention selects an intra prediction mode for a current block, determines the number of valid MPM candidates by checking the validity of MPM candidates of the current block, and if the number of valid MPM candidates is less than a previously set number, adds additional intra prediction modes as MPM candidates. MPM candidates can be adaptively added on the basis of the directionality of valid MPM candidates. Additionally, during the encoding of residual intra prediction modes, residual intra prediction modes are realigned on the basis of the directionality of valid MPM candidates. Accordingly, the present invention minimizes the information for encoding the intra prediction mode of the current block by adding MPM candidates or realigning the residual intra prediction modes on the basis of the directionality of valid MPM candidates. | 2015-04-23 |
20150110186 | METHOD AND APPARATUS FOR ENCODING INTRA PREDICTION INFORMATION - A method for encoding an intra prediction mode according to the present invention selects an intra prediction mode for a current block, determines the number of valid MPM candidates by checking the validity of MPM candidates of the current block, and if the number of valid MPM candidates is less than a previously set number, adds additional intra prediction modes as MPM candidates. MPM candidates can be adaptively added on the basis of the directionality of valid MPM candidates. Additionally, during the encoding of residual intra prediction modes, residual intra prediction modes are realigned on the basis of the directionality of valid MPM candidates. Accordingly, the present invention minimizes the information for encoding the intra prediction mode of the current block by adding MPM candidates or realigning the residual intra prediction modes on the basis of the directionality of valid MPM candidates. | 2015-04-23 |
20150110187 | METHOD AND APPARATUS FOR ENCODING INTRA PREDICTION INFORMATION - A method for encoding an intra prediction mode according to the present invention selects an intra prediction mode for a current block, determines the number of valid MPM candidates by checking the validity of MPM candidates of the current block, and if the number of valid MPM candidates is less than a previously set number, adds additional intra prediction modes as MPM candidates. MPM candidates can be adaptively added on the basis of the directionality of valid MPM candidates. Additionally, during the encoding of residual intra prediction modes, residual intra prediction modes are realigned on the basis of the directionality of valid MPM candidates. Accordingly, the present invention minimizes the information for encoding the intra prediction mode of the current block by adding MPM candidates or realigning the residual intra prediction modes on the basis of the directionality of valid MPM candidates. | 2015-04-23 |
20150110188 | MOVING PICTURE CODING METHOD, AND MOVING PICTURE DECODING METHOD - A moving picture coding apparatus for performing inter-picture predictive coding for pictures constituting a moving picture is provided with a coding unit for performing predictive error coding for image data; a decoding unit for performing predictive error decoding for an output from the coding unit; a reference picture memory for holding output data from the decoding unit; and a motion vector detection unit for detecting motion vectors on the basis of the decoded image data stored in the memory. When coding a B picture as a target picture, information indicating whether or not the target picture should be used as a reference picture when coding another picture is added as header information. Therefore, in a decoding apparatus for decoding a bit stream Bs outputted from the moving picture coding apparatus, management of a memory for holding the reference picture can be facilitated on the basis of the header information. | 2015-04-23 |
20150110189 | VIDEO PREDICTIVE ENCODING DEVICE AND SYSTEM, VIDEO PREDICTIVE DECODING DEVICE AND SYSTEM - A video predictive encoding device includes an input module to receive pictures forming a video sequence, and an encoding module to encode the pictures by either intra prediction or inter prediction to generate compressed picture data, and to packetize the compressed image data along with packet header information. The packet header information includes a picture type. The encoding module determines the picture type so as to uniquely indicate whether encoded picture data is used for reference in decoding of another picture. | 2015-04-23 |
20150110190 | METHOD AND APPARATUS FOR MOTION ESTIMATION - In a method for estimating motion vectors for blocks of a current video image in a sequence of video images, each video image being divided into a plurality of blocks, the following is performed:
| 2015-04-23 |