Abstract: A wireless system in which a pilot signal is transmitted in such a manner as to restrain error between the SIR of a data channel and that of the pilot signal, thereby improving wireless transmission quality. A specific pilot signal generator generates a specific pilot signal whose power and spreading ratio are identical with those of the data channel. A data channel generator receives propagation environment information and generates the data channel with a transmission format corresponding to the received propagation environment information. A wireless transmitter transmits the specific pilot signal and the data channel. On detecting the specific pilot signal, a propagation environment information notifier measures the SIR of the specific pilot signal, then generates propagation environment information corresponding to the measured SIR, and notifies the wireless transmitting unit of the generated information. A data channel receiver receives the data channel and processes the received data channel.

Abstract: The invention relates to a method for watermarking at least one timestamp in a set of support data, comprising the following steps for each timestamp: association with the timestamp of the value at a given time of a reference timestamp signal, that is a determinist signal varying over time in a given temporal reference and being written as s(t), wherein t is incremented according to an incrementing step equal to one predetermined time unit; and watermarking of the value in the set of support data.

Abstract: An orthopedic fixator for positioning a first element relative to a second element with precision and with controlled compliance which can be adjusted during the healing process. One embodiment comprises a first frame for attachment to the first element, a second frame attached to the first frame through a plurality of adjustable effective length struts, and a third frame for attachment to the second element, wherein the third frame is compliantly attached to the second frame. A preferred embodiment comprises adjustable length preload elements to apply unidirectional forces between the first and second frames so as preload the adjustable effective length struts and substantially reduce the positional tolerance. An alternative embodiment comprises adjustable spring elements allowing the compliance of the attachment of the third frame to the second frame to be adjusted at various points in the healing process.

Abstract: The invention relates to a method and a device for coding video levels of pixels of a color component of a picture to be displayed on a display device into code words. The invention is more particularly applicable to Plasma Display Panels (PDP) to improve the picture quality (grayscale enhancement, dynamic false contour reduction). The main idea of the invention is to automatically change the floor and ceiling levels used classically for dithering each pixel value depending on the neighboring pixels of the same color component. The size of the window determining the neighboring pixels is dependent on the definition of the wanted flat field size.

Abstract: The invention relates to an image processing method to generate, from a source image, an image of reduced size whose ratio between the width and the height is equal to a predetermined value, called reduced ratio. It comprises the following steps: selecting one rectangular image part in the source image, and extracting the rectangular image part to generate the reduced image. According to an essential characteristic of the method, if the ratio between the width and height of the rectangular image part, called first ratio, is not equal to the reduced ratio, the width or the height of the rectangular image part is modified before the extraction step according to values of perceptual interest associated with each pixel of the source image in such a manner that the ratio between the width and the height of the modified rectangular image part, called second ratio, is equal to the reduced ratio.

Abstract: A random access channel transmission method in which a user terminal selects a preamble pattern from among a plurality of known preamble patterns and transmits that preamble pattern to a base station, where that transmission method comprises: a step of dividing a cell into a plurality of areas, and setting one or more preamble patterns and the number of repetitions for transmitting the preamble pattern for each area; and a step wherein a user terminal that exists in an are close to the base station transmits a specified preamble pattern one time, and a user terminal that exists in an area far from the base station transmits another specified preamble pattern a plurality of times.

Abstract: Upon handover, a mobile station receives, from the movement origin base station, information on the movement destination base station and information relating to a sequence to be used for transmitting a random access signal to the movement destination base station. The mobile station receives a synchronization channel signal transmitted from the movement destination base station. The mobile station transmits the random access signal to the movement destination base station at a timing offset by a prescribed period from a timing of receiving a synchronization channel and at a frequency corresponding to that of the synchronization channel. A position of the timing/frequency used for transmitting the random access signal for the handover is used exclusively by the random access signal transmitted from the mobile terminal for which a handover is being performed or is used exclusively at the same time by a plurality of mobile stations for which handovers are performed.

Abstract: The invention concerns a device and a method for protecting display time. The image processing method according to the invention comprises a step of shifting pictures by a pattern at a pixel shift frequency characterized in that the frequency is changed for a group of at least one picture depending on a motion degree of the group.

Abstract: In a communication apparatus performing data communication through a network having a relay apparatus which relays data, a data-path establishment unit establishes a data-communication path between the communication apparatus and an opposite end of the data-communication path, and a control-path establishment unit establishes a control-information path between the communication apparatus and an opposite end of the control-information path, where the control-information path is arranged for transmitting control information for controlling the data communication through the control-information path. In addition, an instruction transmission unit transmits an address-set instruction instructing the relay apparatus to search for a next-hop node in the data-communication path and store a MAC address of the next-hop node before the control-information path is established by the control-path establishment unit.

Abstract: A communication apparatus includes a judgment section which judges the state of receiving a downlink control channel from a base station, and a power control section which does not assign transmission power to at least the top one time block in a frame transmitted to be by an uplink control channel, if it is judged by the judgment section that the downlink control channel has not been received.

Abstract: A OFDM-CDMA communication system that generates a plurality of subcarrier components by multiplying each of a plurality of transmission symbols by a channelization code whose length is N according to a spreading factor, and transmits those subcarrier components by a plurality of different subcarriers, measures the propagation environment of each subcarrier, divides the subcarriers into groups having N number of subcarriers in each group whose propagation environments are close one another, and transmits the N number of subcarrier components, which have been multiplied by the channelization code, by subcarriers of the same group.

Abstract: A method for protecting live content in a multimedia system. An Acquisition Point that receives content distributes it in a network comprising a recording device and a rendering device. The content is associated with a license comprising a content identifier and the identity of the sending Acquisition Point. If the content is live, the license indicates that the content is “live protected”. A rendering device that receives the content and its license asks the Acquisition Point indicated in the license if it may render the content. If the content is not live, e.g. if it is replayed later, the permission is given. The Acquisition Point also stores a counter that indicates the number simultaneous viewings. If this number equals a maximum number of viewings when a request is received, the Acquisition Point asks all devices if they access the content to check if its count is correct and, if not, permits access to the requesting device.

Abstract: A base station, for allocating to a mobile station a radio resource in a time direction and a frequency direction of a frame to perform radio communications with the mobile station, includes a zone forming unit configured to apply to zones, into which the frame is partitioned in the time direction, one of pilot transmission methods different in terms of a pilot allocation or a pilot directivity and in an allocation of transmission data to a plurality of mobile stations in a first zone adjacent to a second zone with a pilot transmission method different from the pilot transmission method of the first zone applied to the second zone, a scheduler configured to schedule a first mobile station moving at a low speed to a vicinity of a boundary with the second zone at a higher priority than a second mobile station moving at a high speed.

Abstract: Each color image is decomposed into at least one series of at least three successive primary images of different primary colors which are successively displayed by modulating the activation duration of the pixels of an imaging device. According to the invention, the distribution of the pixel activation phases in the three successive subframes is contracted: the pixel activation periods of the first primary image are shifted toward the end of the subframe of this first image, and, during the subframe of the third primary image, the pixel activation periods of this third primary image are shifted toward the beginning of the subframe of this third image. Color break-up faults are thus advantageously reduced.

Abstract: A method for controlling the quality of storage media, and more specifically a method for determining if the quality of a storage medium decreases. The method includes: determining one or more quality parameters of the storage medium; and comparing one or more of the determined quality parameters with previously determined quality parameters of the storage medium stored in a memory in case the quality of the storage medium has been determined before.

Abstract: The invention relates to a new type of quality of service architecture for a network assembly and a corresponding computer network system. The Internet technology as approved by the IETF organization has defined different services. One is the integrated services (IntServ) and the other the differentiated services (DiffServ) architecture. Another is the RSVP Protocol according to which Quality of Service can be implemented with accuracy and richer functionality. The invention shows a way how less sophisticated QoS managers inside the network with only DiffServ or Intserv capability, can be used for enhancing the QoS functionality based on so-called RSVP shadowing messages, and easy to implement RSVP shadowing stacks.

Abstract: A circuit for resetting and reading out a pixel cell of a CMOS image sensor is proposed. The circuit allows for reading out the pixel cell at least two times during a main integration interval, thereby generating at least two pixel signals. The circuit further comprises means for combining the at least two pixel signals to an output signal. The means for combining are operable to combine the at least two pixel signals weighted in dependence on a saturation level of the pixel cell. A method for controlling the circuit for reading out the image sensor is also proposed.