Patent application number | Description | Published |
20080294789 | METHOD AND DEVICE FOR TRANSMITTING DATA - To transmit data between a server and at least one client in a communication network, this data having to comply with a first transmission latency, for a first processing to be carried out by a first client, and with a greater second latency, for a second processing to be carried out by a second client: the server determines, from the data, taking account of the variable available bandwidth, a first data stream having a rate compatible with the first latency; it transmits this first stream to the clients; it determines, from the data not included in the first stream, taking account of the variable available bandwidth, a second data stream having a rate compatible with the second latency; and it transmits this second stream to the second client. The calculation of the rate of the first stream takes account of the unsent quantity of data of the second stream. | 11-27-2008 |
20090097483 | METHOD AND DEVICE FOR TRANSMITTING DATA - The method of transmitting data packets associated with an importance level comprises a step ( | 04-16-2009 |
20090113048 | METHOD AND PROGRAM FOR MANAGING THE QUANTITY OF DATA TRANSMITTED BY A TRANSMISSION DEVICE OVER A TELECOMMUNICATION NETWORK - The invention relates to a method of managing the quantity of data transmitted by a transmission device over a telecommunication network, characterized in that the method comprises the steps, carried out by the transmission device, of:
| 04-30-2009 |
20090262836 | METHOD OF PROCESSING A CODED DATA STREAM - A method of processing a coded data stream of a current image on a receiving device, the data stream being organized into packets, comprises a step of detecting a lost packet. | 10-22-2009 |
20090319682 | METHOD AND DEVICE FOR TRANSMITING DATA - A video consisting of data organized in the form of a plurality of images is transmitted in a communication network. The method comprises a step of coding images with motion compensation, which consists in compressing the images of the video and in creating dependencies between compressed images, a step of scheduling the transmission of packets representing the compressed images, which consists in sending the compressed images over the network in a selected order, and a step of controlling the rate of the video. At least one of reconsidering the selected order of sending already compressed but not yet transmitted images and deleting at least one compressed image is performed at the time of coding a new image. Furthermore, the dependencies between the new image to be compressed and the compressed images are selected by taking into account the reconsidered sending order at the time of coding the new image. | 12-24-2009 |
20100040077 | METHOD, DEVICE AND SOFTWARE APPLICATION FOR SCHEDULING THE TRANSMISSION OF DATA STREAM PACKETS - The invention relates to a method for transmitting over a data communication network data packets of a data stream to a receiving device, characterized in that it comprises the steps of: selecting a data packet from a buffer memory containing data packets to be transmitted ( | 02-18-2010 |
20100061251 | METHOD OF PREDICTING THE TRANSMISSION ERROR RATE IN A COMMUNICATION NETWORK AND SERVER IMPLEMENTING SUCH A METHOD - To predict the transmission error rate in a stream of data packets transmitted between a server and at least one client in a communication network: the server sends at least one group of packets to the client; the client calculates a plurality of items of statistical information on the group of packets and transmits them to the server; the server analyzes the items of statistical information so as to obtain a network stability indicator; and the server calculates a prediction of the transmission error rate on the basis of the network stability indicator. | 03-11-2010 |
20100275105 | ERROR CORRECTING METHOD AND DEVICE - The invention concerns a method of correcting errors in a data stream of at least one image, implemented in a data reception device, said at least one image being cut up into image portions, said stream being coded by image portion and divided into data packets, the method comprising a step of detecting at least one lost data packet and being characterized in that it comprises the following steps:
| 10-28-2010 |
20100318675 | METHOD OF SENDING DATA AND ASSOCIATED DEVICE - A method of sending a data stream of video images between a server and at least one client device in a communication network, employing a rate setting for the sending of data over the communication network, the method comprising the following steps:
| 12-16-2010 |
20130039424 | Method and device for error concealment in motion estimation of video data - An encoder extracts motion vectors from a frame I(t−1) preceding the frame I(t) being encoded and processes them to create an estimated motion vector field I(t) for the frame being encoded. A minimised difference between the motion vector field of the frame being encoded and the estimated motion vector field is used to generate transform parameters, which are transmitted to the decoder as auxiliary information along with the usual motion prediction information. The decoder receives the transform parameters. The decoder also creates an estimated motion vector field I(t) for based on a preceding frame I(t−1) and applies the transform parameters to the estimated motion vector field to obtain missing motion vectors. The motion vector field rebuilt using the reconstructed missing motion vectors is used for subsequent error concealment/decoding/displaying. | 02-14-2013 |
20140082054 | METHOD AND DEVICE FOR GENERATING A DESCRIPTION FILE, AND CORRESPONDING STREAMING METHOD - The present invention relates to a method and device for generating a description file about a video sequence at a server device for a client device, to retrieve a video segment and containing a region of interest. The method comprising for each video segment, determining a time interval during which the detected region of interest is spatially included in a same frame region in the video sequence; and generating a description file comprising spatial information describing the frame region and temporal information describing a duration at least equal to the determined time interval. | 03-20-2014 |