Method and system for communicating data with an inaccessible electronic device

    公开(公告)号:US10448240B2

    公开(公告)日:2019-10-15

    申请号:US15422615

    申请日:2017-02-02

    Applicant: Gemalto SA

    Abstract: The invention relates to a method of communicating data with an electronic device, comprising the step of receiving signals conveyed by an electrical lead. The method is distinguished in that it comprises the following steps: fitting an RF radiofrequency interface with electrical terminals in the device, extracting signals from the electrical lead, and injecting signals resulting from the extracted signals, in the form of frames of radiofrequency signals in the RF interface with electrical terminals. The invention also relates to a radiofrequency communication device, a system comprising the device and a machine using the device.

    Method and system for optimized reading of a radio frequency communication transponder with the aid of a passive resonant circuit

    公开(公告)号:US10146965B2

    公开(公告)日:2018-12-04

    申请号:US15281641

    申请日:2016-09-30

    Applicant: GEMALTO SA

    Abstract: The invention relates to a method of reading RF transponders disposed in one and the same magnetic interrogation field, in which a magnetic coupling of the transponders is ensured with a passive resonant circuit during reading. The method is distinguished in that the passive antenna of the resonant circuit is associated with at least one transponder antenna, and the passive resonant circuit is tuned in such a way that the resonant frequency resulting from the association corresponds to one of the frequencies of the emission side bands of the transponder to be read. The invention also relates to the system corresponding to the method, a transponder structure and an object containing the transponder, in particular a travel document.

    Method for managing communication between a contactless reader and a portable contactless device

    公开(公告)号:US10382097B2

    公开(公告)日:2019-08-13

    申请号:US16076894

    申请日:2017-01-24

    Applicant: GEMALTO SA

    Abstract: The invention is a method of managing communication between a portable device and a contactless reader able to communicate using a first wireless technology configured to communicate in a short-range mode. The method comprises the steps of: establishing a first channel between the contactless reader and a wireless unit, establishing between the wireless unit and the portable device a second channel using a second wireless technology which is configured: to operate with a range greater than that of said first wireless technology, to detect the position of the portable device with respect to the wireless unit, to handle an anti-collision phase, establishing a bridge between the contactless reader and the portable device through said first and second channels only if the detected position of the portable device matches with the contactless reader.

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