Abstract: A beam shaper has a beam shaping element with an optical property that varies spatially over the profile of an incoming light beam in order to generate a first shaped light beam from the incoming light beam.

Abstract: The present invention relates to a method for detection of film mode or camera mode of a video sequence. This detection is carried out using histograms of video levels of frames of the video sequence. Difference histograms are calculated then compared with each other so as to generate difference parameters for each video frame of the sequence. The pattern formed by these difference parameters is then compared with predetermined patterns to deduce the mode, film or camera, of the sequence. The advantage of this method is that it requires just small memory resources for its implementation and can therefore be implanted in an FPGA circuit.

Abstract: A power-distributed wind turbine transmission for transmitting a torque generated by a rotor hub to an output pinion rotating with increased speed compared to the former to drive an electric generator, wherein at least two parallel-connected planetary stages are provided for power-distributed speed increase internal to the transmission, wherein further coupling of the rotor hub is carried out by means of a connection ring element on the input side of the transmission, which is rotatably supported by a large roller bearing at a fixed transmission housing, and which transmits the force flow in a power-distributed manner to the hollow gears of the parallel-connected planetary stages by means of cardan-like decoupling means formed thereon.

Abstract: A method of encrypting compiled computer code instructions to be decrypted instruction by instruction during execution. The computer code instructions are encrypted using a chaining mode so that an encrypted instruction depends on the values of the instruction, the value of the preceding instruction and a pseudo-random number. As it may happen that the instruction can be arrived at from more than one preceding instruction, at least one of the preceding instructions is associated with a random number compensator for use during decryption of the encrypted instruction, so that the decryption of the encrypted instruction yields the same result regardless of which the preceding instruction was. Also provided are an encryption device, a decryption device and method, and a digital support medium storing encrypted compiled computer code instructions.

Abstract: A device and a process for compressing video documents. The process includes decomposition of the video document into shots, extraction of images representative of the said shots, measurement of the distances between the said representative images, grouping of the images whose distance is less than a predetermined threshold into a group of images, calculation of the relative cost of coding of each image with respect to the other images of the group of images. The process further includes calculation of a minimum spanning tree for each group of images minimizing the cost of coding of each group of images and coding of each group of images by browsing the images in the order given by the said spanning tree.

Abstract: In known video coding standards there are basically three types of pictures: I, P and B. Video sequences are usually coded in a group of picture structure wherein several P or B pictures are coded following one I picture. However, this GOP structure has some disadvantages with respect to error resilience and storage medium recording. If a P picture is lost e.g. due to transmission channel error, then the subsequent P pictures can not be reconstructed correctly, and the error will propagate temporally and cause unpleasing artifacts. This GOP structure is designed for forward play only and makes complicated a reverse play operation. According to the invention, a reversible GOP structure is used for the video encoding and decoding. The RGOP structure contains both, a forward encoding chain and a backward encoding chain. Each picture in the RGOP structure is assigned to only one of these chains and the video pictures of adjacent RGOP chains are interleaved.

Abstract: The present invention concerns a method for controlling upstream bandwidth at a device the device comprising an interface to a first network, at least a local interface to at least a second network, the at least second network comprising more than one gateway device. The method comprises the steps of monitoring the available bandwidth value on the first network and periodically indicating to said more than one gateway device the maximum upstream bandwidth available to said more than one gateway device, the maximum upstream bandwidth depending on the available bandwidth, the number of the more than one gateway device connected to the device, and the number of local interfaces connected to the more than one gateway device.

Abstract: A system according to invention principles advantageously automatically displays a parameter value within the closest Flowsheet parameter acquisition time interval column. A user interface system provides patient medical parameter data for trend indicative display covering a time period comprising user selectable acquisition time intervals. The system includes an acquisition processor for acquiring, from a patient monitoring device, data representing a patient parameter comprising a plurality of data values at a corresponding plurality of different times within multiple user selectable patient parameter acquisition intervals of a time period. The data processor determines for a particular user selectable acquisition time interval a patient parameter data value closest in time to a center time point of the particular user selected acquisition time interval and excludes other patient parameter data values acquired within the particular user selectable acquisition time interval.

Abstract: A system adaptively orients a display image on a device for presenting data acquired via one or more cables connected to a particular side of the device. The system includes a sensor for detecting orientation of the device and providing a device orientation representative signal indicating whether the device is in a first orientation or a second orientation substantially different to the first orientation. A display screen presents display images on the device. A display generator automatically generates a display image on the display screen oriented to be upright in the first and second orientations of the device, in response to the orientation representative signal. A command processor adaptively selects functions assigned to user selectable buttons positioned on both sides of the display screen of the device, in response to the orientation representative signal.

Abstract: The present invention relates to a method for data transfer between a host and a device as well as to respective apparatus. A host is seen as a communication apparatus which organizes data traffic. A device is seen as dependent on the host. In a tiered-star topology there are usually multiple devices connected to one host. A method for data transfer between a host and a device through pipes is presented. The available memory in the host is divided into multiple segments. The assignment of segments is changed between pipes in dependence on the pipe traffic.

Abstract: A video apparatus has a receiver for receiving and converting an RF signal into a video signal. The video signal is then processed (notably encoded) into an encoded digital stream by processing means. The processing means is adjusted based on an indicator of a characteristic of the RF signal.

Abstract: The present invention concerns a content server device and a content receiver device, and a method at said devices for sending content in a robust mode. In particular the invention concerns a method at a peer to peer client to receive content from a server, the method comprising the steps of receiving content from a server in a multicast mode, indicating to the server the content that has been correctly received, receiving from the server in a multicast mode a content availability map indicating the content available at each peer and requesting the missing content from the peer indicated in the content availability map.

Abstract: An enhanced method and apparatus for reducing congestion in dynamic host configuration protocol network system are provided. The congestion reduction method comprises steps of receiving a DHCP request from a DHCP client; and stopping responding to a certain number of DHCPDISCOVER message. And the dynamic host configuration protocol server comprises at least one distributed server, at which the contents of the network service provider server are backed up.

Abstract: An apparatus bridges a plurality of domains and routes multicast datastreams between them. The apparatus includes a receiver which receives a client request signal via a multicast access protocol from a user connected within a first domain. A transmitter requests multicast content using a multicast transmission protocol from a provider within a second domain. A processor processes the multicast content received from the provider. The transmitter relays the multicast content from the second domain to the first domain for access by the user.

Abstract: The method realizes a motion compensated temporal filtering (MCTF), the temporal filtering being replaced by an intra mode coding to obtain at least one low (L) or high (H) frequency picture if the current picture has a level of correlation with a lower previous picture at a threshold, the low frequency pictures obtained (L) being thus scaled to be adapted, at the energy level, to the pictures obtained by motion compensated temporal filtering, and comprises, at the end of analysis: a selection of the pictures obtained by intra coding of a picture of a low decomposition level with the additional condition, for the high frequency pictures, that this picture is derived itself from an intra coding. a calibration of the picture selected by carrying out at least one reverse step of the scaling step. The applications relate to video compression with temporal prediction.