Abstract: Content-based clustering, recognition, classification and search of high volumes of multimedia data in real-time. The invention is dedicated to real-time fast generation of signatures to high-volume of multimedia content-segments, based on relevant audio and visual signals, and to scalable matching of signatures of high-volume database of content-segments' signatures. The invention can be implemented in any applications which involve large-scale content-based clustering, recognition and classification of multimedia data, such as, content-tracking, video filtering, multimedia taxonomy generation, video fingerprinting, speech-to-text, audio classification, object recognition, video search and any other application requiring content-based signatures generation and matching for large content volumes such as, web and other large-scale databases.

Abstract: A method for controlling the provision of resource nodes for streaming multimedia content of a channel viewed by consumer nodes in a peer-to-peer network.

Abstract: A communication device enables transmitting remaining packets to a terminal during a handover, with reduced inter-cell interference and with improved throughput. The communication device allocates a plurality of frequency bands each to different terminals for wireless communication. A power booster increases transmission power of one of the frequency bands, and a frequency band allocator allocates the frequency band with the increased transmission power to a terminal that is performing a handover. Thus, the communication device can transmit the remaining packets to the terminal with the increased transmission power.

Abstract: A method and an arrangement for cycle slip detection for timing recovery of a received analog signal including asynchronously sampled digital data are implemented with a timing recovery control loop using a technique known as interpolated timing recovery and improved cycle slip detection as well as improved cycle slip correction based on said cycle slip detection. The method includes using an output signal of the loop filter in the control loop for timing recovery, generating averaged timing error values from said filtered timing error signal and accumulating changes of the averaged timing error values in adjacent blocks of samples which exceed a first threshold. Accumulated averaged timing error changes of adjacent blocks which exceed a second threshold are then declared as cycle slip and the number of cycle slips is determined by a third threshold being a tolerance threshold.

Abstract: A mobile user terminal includes a receiver which receives a signal, and a processor which measures downlink channel quality based on the signal and does not transmit downlink channel quality information and an uplink pilot signal simultaneously at a period which the mobile user terminal is a state of transmission off in an intermittent fashion.

Abstract: In order to simplify the management of packets to be transmitted, we implement: a writing to a first register of at least one descriptor of packets to be transmitted, each descriptor of packets to be transmitted comprising information representative of a status of each packet belonging to the set, the status of each packet indicating whether the packet is or is not to be transmitted; determination of the first packet of data to be transmitted on the basis of the content of the first register and recording of an identifier of the first packet of data to be transmitted in a second register; and transmission of a set of data packets.

Abstract: A mobile station that receives multibeam data in precoding Multiple Input Multiple Output (MIMO) from a base station, using a plurality of antennas, includes: a code book that includes contents identical to contents of a code book installed in the base station and that includes information of beam selection for precoding; and a control unit that determines a weight for carrying out optimum beam selection for precoding at time of searching information in the code book, based on a state of a beam in each resource block of received data that is divided into a plurality of resource blocks in a radio communication band, to transmit the weight as feedback information to the base station.

Abstract: A method and system for generating a complex signature of a multimedia data element. The method comprises partitioning the multimedia data element recursively until a minimum size multimedia data element is reached; generating a signature for each minimum size multimedia data element; assembling at least a complex signature comprising a plurality of signatures of the minimum size multimedia data elements; and storing the signatures of each of the minimum size multimedia data elements and the complex signature of the multimedia data element in association with the multimedia data element and partitions thereof in a storage unit.

Abstract: A radio resource allocation control apparatus for controlling allocation of radio resources used in communication by a plurality of user equipment in a wireless communication system, the apparatus including a selecting unit for selecting a user equipment to which the allocation is performed by using a priority evaluation formula in which a plurality of user equipment having wireless communication characteristics that have a higher tendency of being selected as a target of the allocation vary when different coefficients are imparted. The apparatus includes a control unit for controlling the coefficients individually for the radio resources.

Abstract: Controlling spectrum use in a first wireless communications system which takes part in a spectrum assignment process, in which one of the first wireless communications system and a second wireless communications system assigns a portion of spectrum to the other of the first and second wireless communications system. The first wireless communications system includes a plurality of network elements some or all located within a cell associated with a particular network element of the second wireless communications system.

Abstract: To provide a radio communication apparatus and a radio communication method in which change in the transmission rate is taken into consideration at the time of making transmission reservation. The present invention provides a radio communication apparatus for receiving the transmission reservation request with a radio transmitting/receiving unit and transmitting the reservation acknowledgement from the same radio transmitting/receiving unit. This radio communication apparatus is characterized in comprising a control unit for transmitting, from the radio transmitting/receiving unit, a plurality of reservation acknowledgments in different contents for a transmission reservation request in different timings.

Abstract: A wireless communication device that obtains an analog received signal by receiving a wireless signal, adjusts amplitude by a variable gain amplifier, converts the analog received signal into a digital received signal by an A/D converter and obtains user data by demodulating the digital received signal, including: a received signal strength indication detecting section that detects a received signal strength indication that fluctuates over time; a gain controlling section that controls a gain of the variable gain amplifier; a propagation environment judging section that judges a propagation environment level of the wireless signal, and a time constant controlling section that controls a time constant, based on the judged propagation environment level such that the time constant becomes larger as the propagation environment level becomes lower, the time constant regulating a change speed of the gain at the variable gain amplifier.

Abstract: A radio communication system whereby one or a consecutive plurality of sub-carrier frequency intervals form sub-carrier groups each of which is assigned to a different user. The radio communication system includes a radio communication apparatus and a terminal configured to receive a control signal and a data signal from the radio communication apparatus. The terminal receives the control signal and the data signal according to a notified control signal position.

Abstract: The invention concerns a method for synchronizing clocks of a set of nodes in a TDMA (“Time Division Multiple Access”) communication network comprising a plurality of nodes, among which some called time reference (TR) nodes are synchronized to a common time reference through a predetermined out-of-band synchronization mechanism, other nodes being called non-TR nodes, each node comprising an internal clock, characterized in that it comprises the steps of: transmitting, at the level of at least one of said TR nodes, a broadcast beacon packet during a given time slot of sub-frames, each sub-frame comprising a plurality of time slots; propagating among the remaining nodes said beacon packet using the slotted structure of the TDMA protocol, each node being pre-assigned a conflict-free time slot in a sub-frame to broadcast said beacon packet received from another node in a previous slot of said sub-frame; and updating in at least two of said non-TR nodes the internal clock based on an updated offset estimate, up

Abstract: The invention makes it possible to select an element from a list of elements represented by icons. A first element is selected by affixing a graphics distinction on its icon. When the user activates and holds a command, said graphics distinction moves from the first icon to a second icon. A second element is selected when the graphics distinction occupies at least one determined area of the second icon representing this second element. According to an improvement, the graphics distinction moves from icon to icon, totally overlapping only a single icon at a time. The invention also relates to a device able to execute the method of selecting an element by moving a graphics distinction.

Abstract: This invention presents a scalable solution to encode the whole 12-bit raw video once to generate one bitstream that contains an H.264/AVC compatible base layer and a scalable enhancement layer. If an H.264/AVC decoder is available at the client end, only the base layer sub-bitstream is decoded and the decoded 8-bit video can be viewed on a conventional 8-bit display device; if the color bit depth scalable decoder is available at the client end, both the base layer and the enhancement layer sub-bitstreams will be decoded to obtain the 12-bit video and it can be viewed on a high quality display device that supports more than eight bit.

Abstract: Closed loop MIMO FDD schemes can offer significant performance gains for OFDM based wireless communication systems over open loop MIMO schemes. However, the pre-coding weights (eigenvectors) on each of the frequency bands need to be updated and this adds extra overhead. The number of adjacent frequency fingers which can use the same pre-coding weights is governed by the coherence bandwidth of the eigen spatial modes. The receiver uses the average r.m.s. delay spread of the SISO channels as an indicator to the eigen coherence bandwidth, rather than explicitly calculating the eigen coherence bandwidth itself. This technique can be applied to TDD schemes as well, where the channel estimation is done with the reverse link, eliminating the need for feedback. The TDD transmitter can estimate the eigen coherence bandwidth on the basis of average r.m.s. delay spread, which saves computational effort.

Abstract: A femto GW provides a network connection to an MS that is radio-accommodated in a femto BS. Upon reception of a position registration confirmation for the MS, if the MS has been radio-accommodated in a BS or the femto BS within a specific calling area including a calling area for the femto BS immediately before reception of the position registration confirmation, and the MS that has been radio-accommodated in the specific calling area is withdrawing itself from the calling area, a transmission stop command for stopping radio transmission to the MS is sent to the femto BS.

Abstract: A printer includes a fixed blade attached to a cover unit; a movable blade that faces a fixed blade, freely reciprocates relative to the fixed blade when the cover unit is closed and cuts the recording medium together with the fixed blade by overlapping the fixed blade during reciprocation; a movable blade driving motor that causes the movable blade to reciprocate; and a movable blade unit that includes the movable blade, the movable blade driving motor, and an accommodating unit accommodating the movable blade and provided at a printer main body. The printer further includes a mechanism that, when the movable blade protrudes from the accommodating unit and is stopped, widens a space over which the fixed blade and the protruding movable blade face each other before the movable blade driving motor accommodates the protruding movable blade in the accommodating unit, as initiated by operation of a cover opening lever.