-
Patent Agency Ranking
61.发明申请公开(公告)号：US20180375547A1
公开(公告)日：2018-12-27
申请号：US16118175
申请日：2018-08-30
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Alexandre Tramoni
Abstract: A method can be used for detecting a potential presence of an object by a reader capable of mutually communicating via a contactless communications protocol. An antenna of the reader transmits a magnetic field on a carrier signal having a sub-carrier modulated by a first data sequence. The modulated sub-carrier is non-interpretable by the object. The antenna of the reader receives a signal resulting from the transmission. The reader demodulates the sub-carrier of the resulting signal so as to extract a second data sequence from the resulting signal. The first data sequence and second data sequence are correlated and the potential presence or absence of the object is determined based upon the result of the correlating.
-
62.发明授权公开(公告)号：US10103782B2
公开(公告)日：2018-10-16
申请号：US15444576
申请日：2017-02-28
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Alexandre Tramoni
Abstract: A method can be used for detecting a potential presence of an object by a reader capable of mutually communicating via a contactless communications protocol. An antenna of the reader transmits a magnetic field on a carrier signal having a sub-carrier modulated by a first data sequence. The modulated sub-carrier is non-interpretable by the object. The antenna of the reader receives a signal resulting from the transmission. The reader demodulates the sub-carrier of the resulting signal so as to extract a second data sequence from the resulting signal. The first data sequence and second data sequence are correlated and the potential presence or absence of the object is determined based upon the result of the correlating.
-
公开(公告)号：US20180262002A1
公开(公告)日：2018-09-13
申请号：US15842621
申请日：2017-12-14
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Alexandre Tramoni
Abstract: The invention relates to a device for protecting a near field communication router against possible over-voltages picked up by an antenna. The device includes two voltage-limiter elements between terminals of the antenna and a ground. A circuit detects the presence of an electromagnetic field in the vicinity of an operating frequency of the router, and controls the limiter elements, the limiter elements being active by default.
-
公开(公告)号：US09367784B2
公开(公告)日：2016-06-14
申请号：US14406479
申请日：2013-06-11
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Alexandre Tramoni
IPC: G06K19/07 , G06K19/077
CPC classification number: G06K19/0705 , G06K19/0701 , G06K19/0702 , G06K19/0709 , G06K19/07749
Abstract: An electromagnetic transponder includes an oscillatory circuit, a battery and a first rectifier bridge. Alternating current input terminals of the rectifier bridge are connected to the terminals of the oscillatory circuit, and at least two rectifier elements of the rectifier bridge are controllable on the basis of the voltage supplied by the battery.
Abstract translation: 电磁应答器包括振荡电路，电池和第一整流桥。 整流桥的交流输入端连接到振荡电路的端子，整流桥的至少两个整流元件可根据电池提供的电压进行控制。
-
公开(公告)号：US20150137953A1
公开(公告)日：2015-05-21
申请号：US14406479
申请日：2013-06-11
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Alexandre Tramoni
IPC: G06K19/07 , G06K19/077
CPC classification number: G06K19/0705 , G06K19/0701 , G06K19/0702 , G06K19/0709 , G06K19/07749
Abstract: An electromagnetic transponder includes an oscillatory circuit, a battery and a first rectifier bridge. Alternating current input terminals of the rectifier bridge are connected to the terminals of the oscillatory circuit, and at least two rectifier elements of the rectifier bridge are controllable on the basis of the voltage supplied by the battery.
Abstract translation: 电磁应答器包括振荡电路，电池和第一整流桥。 整流桥的交流输入端连接到振荡电路的端子，整流桥的至少两个整流元件可根据电池提供的电压进行控制。
-
-
-
-
Search Results
65
records
(took 0.021 seconds)
