Patent application number | Description | Published |
20140218009 | DEVICE FOR MEASURING A DURATION OF A LEVEL OF AN ELECTRICAL SIGNAL - A device for measuring a duration of a level of an electrical signal, comprising first ring oscillator comprising inverting gates, whose electrical power supply is modulated by the electrical signal; second ring oscillator whose electrical power supply is not modulated by the electrical signal; first counting unit configured to count a total number of gate-to-gate transitions of a point of instability of the first ring oscillator, a point of instability being present at an inverting gate when a logic level at an input to the inverting gate is equal to a logic level at an output from the inverting gate; second counting unit configured to count a total number of gate-to-gate transitions of a point of instability of the second ring oscillator; and determining unit configured to determine a duration of a level of the electrical signal on a basis of values of the first and second counting units. | 08-07-2014 |
20140292417 | VOLTAGE-CONTROLLED OSCILLATOR MODULE AND PHASE-LOCKED LOOP DEVICE INCLUDING THE SAME - A voltage-controlled oscillator (VCO) module combines a low VCO-gain value with compensation for large frequency drifts. The VCO module comprises a VCO circuit and a time-integrator. The VCO circuit is fed with a first frequency tuning voltage and a second frequency tuning voltage which is produced by the time-integrator from the first frequency tuning voltage. In some embodiments, the time-integrator may be comprised of a transconductor connected in series with a capacitor, and the transconductor may have a linear operation range with low slope or zero-slope, located between two side ranges with deeper slope. | 10-02-2014 |
20140312943 | PHASE-LOCKED LOOP DEVICE WITH MANAGED TRANSITION TO RANDOM NOISE OPERATION MODE - A phase-locked loop device is configured to manage a transition from a relaxation-oscillation mode to a random noise operation mode. It is designed for progressively reducing proportional and integral coefficients that are implemented in a loop filter of the PLL device. Recovering the last values formerly used for the proportional and integral coefficients is also provided, in case the PLL lock state is lost. Such transition management may be combined with using a voltage-controlled oscillator within the PLL device, which has several control inputs. | 10-23-2014 |
20140320324 | TIME-TO-DIGITAL CONVERSION WITH ANALOG DITHERING - There is described a time-to-digital conversion scheme using an arrangement of delay elements based Time-to-Digital Converter, TDC ( | 10-30-2014 |
20140340161 | DIGITAL PHASE-LOCKED LOOP DEVICE WITH AUTOMATIC FREQUENCY RANGE SELECTION - A digital phase-locked loop (PLL) device includes a digital loop filter which is provided with both a VCO-loop output and a DCO-loop output. The VCO-loop output is connected to an analog input of a multiband voltage-controlled oscillator (VCO) module for allowing usual operation of the PLL with a direct voltage acting as feedback parameter. The DCO-loop output is connected to a digital control input of the multiband VCO module for allowing automatic frequency range selection. A code value which is produced by the digital loop filter acts as feedback parameter during the frequency range selection. Rapid and precise range selection can thus be performed. | 11-20-2014 |
Patent application number | Description | Published |
20080231400 | Low Current Switch for Motor Car Anti-Theft Lock - A switch for starting and stopping at least one operating unit of a motor vehicle configured to cooperate with an anti-theft lock having a stator and a rotor that can be rotated inside the stator and that has at least one permanent magnet secured to the rotor has at least two Reed bulbs provided with flexible leads and electrically linked by the leads to the contacts of a connector. Said Reed bulbs are arranged on a connector body designed to be fixed removably to said stator in a so-called operating position. | 09-25-2008 |
20080289382 | Retractable Insert Key Comprising Insert Driving Means - The invention proposes a key ( | 11-27-2008 |
20090000343 | Device for Positioning and Holding an Emergency Key - The invention relates to a device for positioning and holding a key in a container including at least two parts, where opening/closing mechanisms allow the two parts to be mobile in relation to one another, at least in rotation, about a rotational axis between an open position providing access to a housing of the container and a closed position, and where mechanisms for locking/unlocking the two parts at least in a closed position, include a locking/unlocking control member which is mobile in translation along a translation axis. | 01-01-2009 |
20090113964 | Key with retractable stem, comprising means for moving the stem into a deployed position - The invention provides a key ( | 05-07-2009 |
20090314045 | SELF-DISENGAGING LOCK FOR A CAR LOCK MECHANISM - A self-disengaging lock for a motor vehicle lock mechanism, including a fixed stator and a rotor which is rotatably mounted in the stator and which comprises pins which are radially mobile under the action of a key intended to be axially introduced into the rotor, where the rotor is coupled to a control device of the lock, in an angular alignment in the manner of a cardan joint, when the key is correct, and the rotor is decoupled from the control device in the disengaged position, where the rotor is coupled to the control device directly, the end of the control device having a coupling arrangement held by the stator and the end of the rotor having another complementary coupling arrangement, where the coupling of the rotor and the control device enables the angular displacement of the control device in order to ensure the angular alignment. | 12-24-2009 |
Patent application number | Description | Published |
20080304663 | System and Method for the Anonymisation of Sensitive Personal Data and Method of Obtaining Such Data - A system for managing sensitive personal data (DD_A) includes two databases ( | 12-11-2008 |
20090012900 | Making Secure Data for Customer Loyalty Programs - A portable device, a terminal, a system, and a method of storing data relating to transactions by terminals ( | 01-08-2009 |
20100275009 | METHOD FOR THE UNIQUE AUTHENTICATION OF A USER BY SERVICE PROVIDERS - The invention relates to a method for unique authentication of a user (U) by at least one service provider (SP), said method including a preliminary identity federation stage of federating an identity (user@sp) of said user for said service provider and an identity (user@idp) of the user (U) for an identity provider (IdP). According to the invention, said preliminary identity federation stage includes the steps of: the user (U) generating a user alias ([alias]) for that service provider (SP) and sending said identity provider (IdP) a masked alias ([alias] | 10-28-2010 |
20110057779 | METHOD OF AUTHENTICATING A RADIO TAG BY A RADIO READER - The invention relates to a method of authenticating a radio tag by a radio reader, the tag possessing an identifier accessible to the reader via a database of tag identifiers, comprising: dispatching an authentication request by the reader to the tag, dispatching by the tag, a response, calculated by applying a first function to at least the identifier, a calculation by the tag and by the reader of a new identifier, by applying a second function to the identifier, comprising: if the response dispatched by the tag corresponds to a result obtained by applying said first function to an identifier of the base, a dispatching by the reader a first value, calculated by applying a third function to said identifier of the base. | 03-10-2011 |
20110107102 | METHOD FOR AUTHENTICATING AN ENTITY BY A VERIFIER - A method for authenticating an entity by a verifier, the entity having an identifier, the verifier having a pair of private and public keys, comprising: sending to the entity a first random number selected by the verifier; a step wherein the entity encrypts a value by means of the public key of the verifier, said value including the first random number and an authentication datum on which the identifier of the entity depends; and the entity of said encrypted value sending a reply to authenticate said entity. The invention can be applied to the field of low-cost cryptography, especially the field of radio-identification. | 05-05-2011 |
20130276084 | ANONYMOUS ACCESS TO A SERVICE BY MEANS OF AGGREGATED CERTIFICATES - A method of anonymous access to a service, comprising the allocation, by at least one certifying entity, of a plurality of certificates to a user entity, the certificates being calculated on the basis of at least one attribute associated with the user entity, the calculation, by the user entity, of an aggregated certificate on the basis of a plurality of certificates among the certificates allocated to the user entity, the calculation, by the user entity, of a proof of knowledge of the aggregated certificate and a verification, performed by a verifying entity, of at least one of these certificates by means of said proof of knowledge, the access to the service being provided by the verifying entity to the user entity as a function of the result of this verification. | 10-17-2013 |
Patent application number | Description | Published |
20080304663 | System and Method for the Anonymisation of Sensitive Personal Data and Method of Obtaining Such Data - A system for managing sensitive personal data (DD_A) includes two databases ( | 12-11-2008 |
20100275009 | METHOD FOR THE UNIQUE AUTHENTICATION OF A USER BY SERVICE PROVIDERS - The invention relates to a method for unique authentication of a user (U) by at least one service provider (SP), said method including a preliminary identity federation stage of federating an identity (user@sp) of said user for said service provider and an identity (user@idp) of the user (U) for an identity provider (IdP). According to the invention, said preliminary identity federation stage includes the steps of: the user (U) generating a user alias ([alias]) for that service provider (SP) and sending said identity provider (IdP) a masked alias ([alias] | 10-28-2010 |
20110057779 | METHOD OF AUTHENTICATING A RADIO TAG BY A RADIO READER - The invention relates to a method of authenticating a radio tag by a radio reader, the tag possessing an identifier accessible to the reader via a database of tag identifiers, comprising: dispatching an authentication request by the reader to the tag, dispatching by the tag, a response, calculated by applying a first function to at least the identifier, a calculation by the tag and by the reader of a new identifier, by applying a second function to the identifier, comprising: if the response dispatched by the tag corresponds to a result obtained by applying said first function to an identifier of the base, a dispatching by the reader a first value, calculated by applying a third function to said identifier of the base. | 03-10-2011 |
20110107102 | METHOD FOR AUTHENTICATING AN ENTITY BY A VERIFIER - A method for authenticating an entity by a verifier, the entity having an identifier, the verifier having a pair of private and public keys, comprising: sending to the entity a first random number selected by the verifier; a step wherein the entity encrypts a value by means of the public key of the verifier, said value including the first random number and an authentication datum on which the identifier of the entity depends; and the entity of said encrypted value sending a reply to authenticate said entity. The invention can be applied to the field of low-cost cryptography, especially the field of radio-identification. | 05-05-2011 |
20120017083 | GROUP SIGNATURE WITH LOCAL REVOCATION VERIFICATION WITH CAPACITY FOR LIFTING ANONYMITY - The cryptographic scheme subdivides time into periods with an index j=0, 1, 2, etc. A public key indicates elements u and v of a first cyclic group G | 01-19-2012 |
20120072732 | CRYPTOGRAPHIC METHOD FOR ANONYMOUS AUTHENTICATION AND SEPARATE IDENTIFICATION OF A USER - The invention relates to cryptographic method for the anonymous authentication and the identification of a user entity (U | 03-22-2012 |