Abstract: A mass memory device is disclosed as including a memory module, a management module for physical management of the memory module, and a control module for controlling the management module. The management module is connected for communication with the control module by an MII-family bus.

Abstract: A device for the streaming reception of audio and/or video data packets transmitted over a network from a source server, the device including a network buffer memory in which the packets may be stored, the network buffer memory exhibiting a variable buffering time; and a program memory encoded with instructions configured to adapt the buffering time of the packets for the purpose of improved playback performance of the packets and to locally determine the value of at least one quality of service indicator, the instructions configured to adapt the buffering time adapting the time as a function of the value of the indicator.

Abstract: A method of securely transferring data. The source data stored in a source memory (NV_MEM) is compared with the transferred data (COPY_ELT_X_V_MEM) that has been copied from the source memory (NV_MEM) into a “destination” memory (V_MEM). The method consists in reading from the source memory (NV_MEM) an integrity value (PI_ELT_X) associated with an element (ELEMENT_X_NV_MEM) such as file containing the source data, in calculating the integrity of a reconstituted element made up of the transferred data (COPY_ELT_X_V_MEM) associated, where appropriate, with the data of the source element (ELEMENT_X_NV_MEM) other than the data that was transferred, and in deciding that the transferred data (COPY_ELT_X_V_MEM) is identical to the source data when the integrity calculation gives a value identical to the integrity value of the source element (PI_ELT_X). The method applies to transferring data between components of a smart card.

Abstract: A method for synchronizing a first and a second set of data of a mobile telecommunication device includes: —providing a first processing device, the first processing device including the first set of data, —providing a second processing device, the second processing device including the second set of data, —providing a server, the server being comprised on the first processing device, —providing a client, the client being comprised in the second processing device, —synchronization of the first and the second set of data by way of a communication between the server and the client.

Abstract: An imaging system (10) comprises an objective (1), an image detector (2) placed in an image plane of the objective, and a calculation unit (3) intended for executing a digital processing of an image captured by the detector. The objective is suitable for modifying a wavefront of a radiation which enters the system, so that an illumination on the detector which is produced by a source of the radiation is constant for a large interval of variation of a distance of separation of the source from the objective. The depth of field of the system is thus increased, and the calculation unit can be simplified by using a constant filter. The modification of the wavefront is created by a profile which is invariant under any rotations about the optical axis of the objective.

Abstract: The invention relates to a rotolinear actuator that comprises: a central rod having an outer thread and surrounded by a ring with an inner thread, and threaded satellite rollers distributed between the central rod and the outer ring engaged with the threaded faces thereof. The actuator includes means for dispensing by capillarity a liquid lubricant at at least one contact area of at least one satellite roller with the central rod and with the outer ring, wherein the lubricant is economically dispensed by capillarity in an amount that is just sufficient and precisely at the contact locations of the interacting members, from a tank that may be sufficient for the lifetime of the actuator.

Abstract: A method of coding a secret, a numerical value d, subdivided into a number N of secret elements [di]n1, a composition law () applied to the elements di giving the value d. The following are calculated: (A) a first image (TN) of the secret by iterative calculation and application of the law () between the first image Ti?1 of rank i?1 and of the product according to this law of the element (di) of next rank and of a random value (Ri) of a first set, (B) a first numerical value (S1) by application of the law () to the N random values (Ri), (C) a second numerical value (S2) by application of the law to the N?1 random values (Aj) of a second set, (D) a second image T? of the secret by application of the inverse law () to the first image (TN) and to the second numerical value (S2) so as to generate an intermediate image (Tx) and then application of the inverse law to the intermediate image (Tx) and to the second numerical value (S2).

Abstract: A field changer device (4) comprising: a rotary magazine (5) of spherical general shape mounted so as to rotate about a rotation axis (R) coincident with an axis of symmetry of the magazine (5), which is inclined to a fixed principal optical axis (X); and at least three optical channels (A, B, C) provided in said magazine (5) and having concurrent respective optical axes (XA, XB, XC) inclined at the same angle (?) to the rotation axis (R), it being possible for said magazine (5) to rotate about its rotation axis (R) through predetermined rotation angles (?1, ?2, ?3) in order to place each of the optical channels (A, B, C) alternately along the principal optical axis (X), the optical channels (A, B, C) being arranged in the magazine (5) in such a way that at least two of the rotation angles (?1, ?2, ?3) of the magazine (5) are different.

Abstract: A system and method for traversing a firewall for a voice-over-IP session or other communication session uses four main components: a relay agent, and NAT 30Agent, a SIP proxy and a application server. The SIP proxy is located in the public network and SIP signaling messages are routed through the SIP proxy. The sever opens ports in the firewall for signaling between the SIP proxy and the relay agent behind the firewall. The application server also opens ports in the firewall for media traffic. The NAT 30Agent disposed in the path from the firewall to the Internet filters media packets and changes the public source address of the media packets to a predetermined address associated with the open media port.

Abstract: The invention relates to a multilayer card of thermoplastic material comprising first and second layers (7, 2) secured to each other, together with least one reinforced bonding zone (9) between the first layer and the second layer. The invention also provides a method of making a multilayer card secure.

Abstract: The invention aims to resolve the problems with jitter in a system for receiving real-time data in packets by a jitter regulation method based on the calculation of a curve representing the minimum filling rate of the buffer and by the triggering of a correction operation according to the change in this curve over time. This invention is applicable to all systems for receiving real-time data streams using a reception buffer. It is however particularly advantageous when the transmission jitter has a pseudoperiodic character.

Abstract: Biometric data relating to a biological part are processed by obtaining, on the one hand, a first set of transformed biometric data (f(B1)) by applying at least one irreversible transformation to a first set of biometric data (B1), and, on the other hand, a second set of transformed biometric data (f(B2)) by applying said transformation to a second set of biometric data (B2). Thereafter, a decision is made as to whether the second biometric data set corresponds to the first biometric data set on the basis of a comparison between the first transformed biometric data set and the second transformed biometric data set, said comparison being performed at the bit level of a digital representation of said first and second transformed biometric data sets as a function of an error corrector code word.

Abstract: A method of determining a heading in the geographical North direction by means of an inertial sensor module having three rate gyro measurement axes and three accelerometer measurement axes, the method comprising the steps of: using data from the inertial sensor module in a North-seeking mode to obtain a first heading value; using data from the inertial sensor module in a gyro-compass mode to obtain a second heading value; and determining the heading in the North direction by using the first heading value and the second heading value.

Abstract: A method of analyzing a presence in a space (5), the method comprising the steps of: projecting at least one light beam (10) into the space towards a screen in such a manner that at least a portion of a body, if present in the space, casts a shadow onto the screen; and analyzing the shadow cast on the screen.

Abstract: In order to maximize the availability of a television receiver/decoder housing, the invention enables the download of updates while said housing is being used. In order to do so, when the housing detects that an update is available, the housing allocates itself a portion of the acquisition resources of the update in order to store this update in a housing storage memory. Once the download is complete, the user can either activate the update or carry on using a former version of the housing application, the user thus being able to select a microcode version which is activated by default on switching on the receiver/decoder housing.

Abstract: A method for maintenance of an array of bolometer-type detectors comprises heating of certain detectors to a threshold temperature. The heating is performed by supplying resistive detection elements with electric currents, and the threshold temperature is determined for each detector as a function of a measurement made previously on said detector. Such method makes it possible to eliminate persistent images caused by radiation overexposure, or by damage to the thermoelectric properties of certain pixels appearing during the manufacture or ageing thereof. The method does not require the use of an oven or Peltier element, thus avoiding the risk for such heating component to damage irreversibly the reading and CMOS addressing circuits on which the detectors are hybridised or deposited.

Abstract: The invention relates to a person identification control method and to a system for implementing same. The inventive method comprises the following steps consisting in: detecting biometric data (23, 48, 79, 94, 108) relating to at least one person; seeking a concordance between the biometric data relating to the person and biometric data that have been pre-stored in a biometric database (26, 51, 83, 97, 110), said pre-stored biometric data relating to persons for whom identification means have already been generated; and, when no concordance is found, generating an identification means (29, 56, 84, 98, 103, 111) that is associated with the person from the biometric data relating to the person and at least one identity (24, 49, 80, 95, 117) for said person.

Abstract: The invention concerns an optical identification device comprising a digital camera (4), the camera including a member for changing focal length between at least a visual observation focal length and a print recognition focal length, and the device including an automatic print recognition system (10), which is connected to the camera to be activated when the camera is in the print recognition focal length.

Abstract: The invention concerns gyrometric measurement compensated as a function of the instantaneous internal temperature of a mechanical resonator in a gyrometric measurement device comprising a loop controlling the amplitude of the resonator vibration and a gyrometric loop delivering a gyrometric signal (S); the gain control (P) of the loop varies as a monotonous function, preferably increasing and of the first order, of the internal temperature of the resonator in a given range of temperature; during a calibrating step, a correspondence is established and stored between the values of the gyrometric scaling factor (Fe) and the gyrometric bias (S0) and the values of the gain control signal (F), that is F(P) and Q(P) respectively; in operation, the following operations are carried out: P?F(P), P?Q(P), and ??est=F(P)·S+Q(P) which is a more precise analog estimate, compensated as a function of the internal temperature of the resonator, of the mechanical rotation of the sensitive axis of the resonator.

Abstract: Device with integrated electronic components, that comprises a board forming a support for the said components, a cover mounted on the said board to cover the said components, and a separating partition which extends from the cover to the board substantially perpendicularly to the latter, the said partition separating two distinct zones of the board, wherein it comprises an overcover covering the cover and defining an internal space between the cover and the overcover in which are provided cooling gas division means delimiting two distinct secondary spaces in the internal space, an upstream secondary space into which cooling gas is able to be injected and a downstream secondary space into which cooling gas is able to be discharged so that cooling gas injected into the upstream zone of the board is directed toward the downstream secondary space of the internal space and that cooling gas injected into the upstream secondary space of the internal space is directed toward the downstream zone of the board.