Abstract: A method and apparatus for improving performance in communication systems is provided. In one implementation, information is accessed indicating the quality of at least one communication channel. Based on the accessed information, a modulation scheme is indicated for sending data over the channel encoded with a rateless code. Various different information relating to the communication channel can be used to determine a quality metric for the channel.

Abstract: The invention relates to a dipole antenna including first and second radiating elements electrically connected via a transition, said first and second elements being associated with a frequency f1 in a frequency band, a feeding point the feeding point and the reference point being respectively connected to a feeding conductor and a ground conductor of a feeding line, and a balun. The balun is formed by a slot arranged in the first radiating element, said slot having a short circuit at a first end and an open circuit at a second end next to the transition. The feeding point and the reference point are arranged on opposite sides of the slot.

Abstract: A method and apparatus are described including defining a neighbor set for each access point, selecting a first clock in a first access point, the selected clock having a highest accuracy as a grand master clock, advising neighboring access points to synchronize with the selected grand master clock and transmitting a message to schedule a quiet period based on the grand master clock. Also described are a method and apparatus including receiving a beacon message, inspecting clock descriptors in the beacon message, selecting a best master clock responsive to the inspection and transmitting a message to schedule a quiet period based on the selected best master clock.

Abstract: The present invention relates to a reliable method and device for backup of data from a first network to a second network. The method and device of the present invention can for example be used for a backup of voluminous data from the first to the second network via a link with a relatively small bandwidth.

Abstract: Methods and apparatus are provided for improved entropy encoding and decoding. An apparatus includes a video encoder (200) for encoding at least a block in a picture by transforming a residue of the block to obtain transform coefficients, quantizing the transform coefficients to obtain quantized transform coefficients, and entropy coding the quantized transform coefficients. The quantized transform coefficients are encoded using a flag to indicate that a current one of the quantized transform coefficients being processed is a last non-zero coefficient for the block having a value greater than or equal to a specified value.

Abstract: A code book is generated for mapping source to target code words which allows encoding source data at reduced probability of incorrect decoding, e.g. for DNA storage. The target code words are grouped (102) into subsets and comprise identifying and remaining portions. The identifying portions of target code words corresponding to a same subset are identical. A first code symbol set of source code words is selected (103) for addressing the subsets. For the subsets, neighboring subsets are determined (104). The identifying portions of the target code words of neighboring subsets differ from those of the corresponding subset by up to a predetermined amount of symbols. Source code words are assigned (105) where the corresponding first code symbols address the same subset to said subset such that an amount of target code words of said subset having their remaining portions identical to their neighboring subsets corresponds to an optimization criterion.

Abstract: A particular implementation selects two or more fiducial markers to be embedded into a video to convey information. Specifically, the translation, scaling and rotation between a reference marker and a secondary marker can be used to transmit information. When more information needs to be embedded, more secondary markers can be used. The transformation between the fiducial markers can also evolve over time as the information to be embedded evolves over time. At the receiving side, a reader device captures a video including multiple fiducial markers and determines the translation, scaling and rotation between the fiducial markers. Based on the transformation of the fiducial markers, the reader device can retrieve the information embedded in the captured video by the fiducial markers.

Abstract: The disclosed methods and systems provide for the registry and authorization of media on a media player. The method involves maintaining a registry of registered media. Media to be played by the media player is compared to the maintained registry of registered media. If media is registered, authorization it then required to play the registered media.

Abstract: The invention concerns a device (D) for assigning time information to a main multimedia content related to a given object. To this end, said device comprises: a clustering module (4) configured to cluster a set of auxiliary multimedia contents with time information and related to said object, so as to deliver clusters comprising some of said auxiliary multimedia contents; a determining module (5) configured to determine a time data for each cluster; a computing module (6) configured to compute a distance between the main multimedia content and each of said clusters, an assigning module (7) configured to assign to the main multimedia content, the time data of the cluster having the smallest distance said amongst computed distances.

Abstract: The invention relates to a reproduction device (21), with a device (20) acting as a source of digital services. It also relates to a method of synchronizing two parts of a digital service in a system including a source device according to the invention and at least one reproduction device according to the invention. According to the invention, the reproduction device (21) includes means for receiving the data forming at least a part of a digital service originating from a digital service source device (20), means for processing (210) at least some of the data received, means (211) for reproducing an output of at least a part of the digital service, the time for processing and reproducing the data introducing a delay in the output of the reproduced data. This device also includes communication means (213) for informing the source device of the delay introduced.

Abstract: An architecture for providing a low cost, high performance antenna for small devices In particular, a rotatable antenna that having three antenna elements; a primary element consisting of a radiating element and swiveling cylindrical head, a secondary element that consists of a feeding cylindrical pin attached vertically to an electronic device main board, and a third element that consists of a plastic part over-molding the secondary element to permit electromagnetic coupling accuracy between the primary and secondary elements.

Abstract: A method and device for controlling at least one force-feedback device associated with at least a part of the body of a user. As to control the user's experience of motion and movements induced by the displacement(s) of the force feedback device(s) following operations are performed: [a] determining a speed value of a movement of the at least a part of the body according to at least a parameter representative of the displacement of the at least one force-feedback device, the movement of the at least a part of the body being induced by the displacement of the at least one force-feedback device; [b] comparing the determined speed value with a threshold speed value as to determine whether the displacement of the at least one force-feedback device is perceived by the user; and [c] controlling the at least one parameter according to the comparison result.

Abstract: An electrical activity sensor attachable to a power cable of an electrical device for detecting an impulse generated in the power cable in response to a change in electrical power state of the electrical device, the electrical activity sensor comprising an antenna assembly comprising an antenna element operable to magnetically couple with an electrical pulse generated in the power cable to induce an electrical signal in response to a change in electrical power state of the electrical device; and at least one dipole type antenna configured operate as a half wave dipole in the operating frequency range of the antenna element and to magnetically couple to the antenna element wherein the dipole type conductor is operable to wirelessly transmit data representative of the power state change of the electrical device to a remote reader.

Abstract: A circuit board assembly for an electronic device, comprising: a main circuit board provided with a ground plane and at least one electronic component for performing one or more functions of the electronic device; a wireless module board spaced apart from and over the main circuit board, the wireless module board being provided with a feed line and at least one wireless module for performing wireless operations; and an antenna element for wireless communication, the antenna element comprising a resonating element, a first connection element connected to the feed line of the wireless module board and a second connection element connected to the main circuit board.

Abstract: A user interface is used to assign different devices and device types to media services where the number of different devices and device types that are capable of being assigned is determined by access privilege information corresponding to such media services. When a number of devices of a specific type are assigned where such a number exceeds a limit specified in the access privilege information, the assignment of additional devices of that specific type is halted.

Abstract: An apparatus and method for controlling indicator lights in a device is described. The apparatus includes a first visual indicator that indicates a status of a first activity, a second visual indicator that indicate a status of a second activity, and a control circuit adjusting an intensity for the first visual indicator when the first visual indicator is illuminated in response to the status of the first activity and adjusting an intensity for the second visual indicator when the second visual indicator is illuminated in response to the status of the second activity. The method includes providing a first signal to a first indicator light indicating a status for a first activity, providing a second signal to a second indicator light indicating a status for a second activity, and providing a third signal to the first and second indicator lights that adjusts the brightness of the lights.

Abstract: There are provided methods and apparatus for video usability information (VUI) for scalable video coding (SVC). An apparatus includes an encoder for encoding video signal data into a bitstream. The encoder specifies video user information, excluding hypothetical reference decoder parameters, in the bitstream using a high level syntax element. The video user information corresponds to a set of interoperability points in the bitstream relating to scalable video coding.

Abstract: A method for distributing a video program to first and second devices is disclosed. The method comprises receiving a request for the video program from one of the first and second devices both registered in an account at the server; transmitting the video program, but not information related to the video program, to a first selected one of the two devices according to a distance between the two devices; and transmitting the information related to the video program, but not the video program, to a second selected one of the two devices according to the distance.

Abstract: Method and apparatus for estimating the depth of focused plenoptic data are suggested. The method includes: estimating the inherent shift of in-focus pixels of the focused plenoptic data; calculating a level of homogeneity of the pixels of the focused plenoptic data; determining the pixels of the focused plenoptic data which either have disparities equal to the inherent shift or belong to homogeneous areas, as a function of the level of homogeneity of the pixels of the focused plenoptic data; and estimating the depth of the focused plenoptic data by a disparity estimation without considering the determined pixels. According to the disclosure, the pixels of the focused plenoptic data which either have a disparity equal to the inherent shift or belong to a homogeneous area will not be considered for the estimation of the depth, which can reduce computational costs and at the same time increase accuracy of estimations for in-focus parts of the scene.

Abstract: A method for providing a web page in a web server accessed by a user device, comprising: obtaining access behavior information to the web page by the user; and providing page contents and page layout adaptor of the web page to the user device so that a updated web page with an adapted page layout is generated by the user device according to the access behavior information.