| INSTITUT TELECOM / TELECOM PARISTECH Patent applications |
| Patent application number | Title | Published |
|---|
| 20120131411 | MODULATION METHOD AND DEVICE IMPLEMENTING A DIFFERENTIAL MODULATION, CORRESPONDING DEMODULATION METHOD AND DEVICE, SIGNAL AND COMPUTER SOFTWARE PRODUCTS - A method and apparatus are provided for modulating a binary source sequence including of a plurality of source words to generate modulated symbols. The method implements error-correction encoding of the plurality of source words, implementing one or more encoding modules, each implementing a separate error-correction code to generate a plurality of code words, the source words being encoded in series. The code words are interlaced to generate an interlaced sequence. The interlaced sequence is differentially modulated to generate modulated symbols. Each code word is broken down into at least one group with a number of bits equal to the base-2 logarithm of a number of states of a modulation implemented by the step of differentially modulating. The interlacing step distributes the groups such that two adjacent groups in the interlaced sequence belong to separate code words. | 05-24-2012 |
| 20120072994 | METHOD TO PRODUCE SECURING DATA, CORRESPONDING DEVICE AND COMPUTER PROGRAM - A method and apparatus are provided for generating security data for implementing a secure session between a first and at least a second entity according to a secure session establishment protocol. Such a method includes: initializing a third secure entity connected to the first entity; generating at least a portion of the security data within the third entity; transmitting the generated security data from the secure third entity to the first entity; and transmitting at least a portion of the security data generated in the third secure entity to at least a previously initialized fourth secure entity connected to the third secure entity. | 03-22-2012 |
| 20120045061 | CRYPTOGRAPHY CIRCUIT PARTICULARLY PROTECTED AGAINST INFORMATION-LEAK OBSERVATION ATTACKS BY THE CIPHERING THEREOF - A cryptography circuit, protected notably against information-leak observation attacks, comprises a functional key k | 02-23-2012 |
| 20110258459 | METHOD FOR PROTECTING THE DECRYPTING OF THE CONFIGURATION FILES FOR PROGRAMMABLE LOGIC CIRCUITS AND CIRCUIT IMPLEMENTING THE METHOD - A method for protecting a programmable logic circuit includes storing data file(s) used for the configuration of the programmable resources of the circuit in a non-volatile memory after having been encrypted. A decryption module internal to the circuit is responsible for decrypting the file(s) by using a secret key stored in the circuit, the decryption module being protected against attacks aiming to obtain the key during the decryption operation by implementing at least one countermeasure technique. | 10-20-2011 |
| 20110194709 | Automatic source separation via joint use of segmental information and spatial diversity - A source separation system is provided. The system includes a plurality of sources being subjected to an automatic source separation via a joint use of segmental information and spatial diversity. The system further includes a set of spectral shapes representing spectral diversity derived from the automatic source separation being automatically provided. The system still further includes a plurality of mixing parameters derived from the set of spectral shapes. Within a sampling range, a triplet is processed wherein a reconstruction of a Short Term Fourier Transform (STFT) corresponding to a source triplet among the set of triplets is performed. | 08-11-2011 |
| 20110122004 | METHOD OF DECODING A SIGNAL IMPLEMENTING A PROGRESSIVE CONSTRUCTION OF A DECODING TREE, CORRESPONDING COMPUTER PROGRAM AND DECODING DEVICE - A method of decoding a data signal includes progressively constructing a decoding tree, implementing at least two iterations of the following steps: selecting at least one child node of a current node belonging to a selection interval; storing the child nodes in a first stack; deleting the current node from the first stack; selecting a new current node from the first stack; and if the new current node is a leaf node, storing the path between the root node and the leaf node, in the second stack, and deleting the leaf node from the first stack; otherwise, return to the step of selecting a child node for the new current node. Moreover, the method assigns a probability of likelihood to the bits of at least one symbol of the data signal, taking account of the paths stored in the second stack, and determines a probabilistic estimation of the signal. | 05-26-2011 |
| 20110058617 | METHOD FOR DECODING A SIGNAL TRANSMITTED IN A MULTI-ANTENNA SYSTEM, CORRESPONDING COMPUTER SOFTWARE PRODUCT AND DECODING DEVICE - A method is provided for decoding a signal received by a receiver including at least one reception antenna. The method includes: selecting, among at least two techniques available in the receiver, a decoding technique representative of a space/time encoding implemented upon transmission; and decoding the signal using the selected decoding technique. The selecting step takes into account at least one selection criterion. | 03-10-2011 |
