公开(公告)号：US20160092762A1

公开(公告)日：2016-03-31

申请号：US14839673

申请日：2015-08-28

Applicant: STMicroelectronics International N.V.

Inventor： Achraf Dhayni

IPC: G06K19/07 ,  H03C1/08 ,  G06K19/073

CPC classification number: G06K19/0726 ,  G06K7/0095 ,  G06K19/0722 ,  G06K19/073 ,  H03C1/08 ,  H04B5/0031 ,  H04B5/0075

Abstract: A method for managing the operation of an object capable of contactless communication with a reader magnetically coupled to the object includes a phase for transmission of information from the object to the reader and includes a modulation of the impedance of a load connected across the terminals of the antenna of the object. Prior to the transmission phase, a monitoring phase includes a monitoring of the level of amplitude modulation of a modulated test signal present at the antenna of the object and resulting from a test modulation of the impedance of the load and a capacitive modification of the impedance of the load if this level is lower than a threshold.

Abstract translation: 用于管理能够与磁性耦合到对象的读取器进行非接触通信的对象的操作的方法包括用于从对象向读取器传输信息的阶段，并且包括对连接到对象的终端的负载的阻抗的调制 物体的天线。 在传输阶段之前，监测阶段包括监测存在于物体的天线上的调制测试信号的幅度调制水平，并且由对负载的阻抗的测试调制产生的， 该级别低于阈值时的负载。

公开(公告)号：US20160056921A1

公开(公告)日：2016-02-25

申请号：US14931331

申请日：2015-11-03

Applicant: STMicroelectronics International N.V.

Inventor： Achraf Dhayni ,  Hussein Hijazi

IPC: H04L1/00 ,  H04B7/04

CPC classification number: H04L1/0054 ,  H04B7/0413 ,  H04L1/0631 ,  H04L25/03197 ,  H04L25/03242 ,  H04L25/03961 ,  H04L2025/03414 ,  H04L2025/0342 ,  H04L2025/03426

Abstract: A receiver estimates a vector of emitted symbols over a MIMO transmission channel which is emitted by emitting antennas. The receiver receives a vector of received symbols on receiving antennas. Estimation of the vector of emitted symbols is made by calculating a metric associated with a criterion for each vector of a subset of all possible vectors of emitted symbols and selecting an estimation for said vector of emitted symbols as the vector of emitted symbols among said subset which minimizes said metric.

Abstract translation: 接收机估计由发射天线发射的MIMO传输信道上的发射码元的向量。 接收机在接收天线上接收接收符号的向量。 通过计算与发射符号的所有可能向量的子集的每个向量的标准相关联的度量来估计发射符号的向量，并且将所发射的符号的所述向量的估计选择为所述子集中的发射符号的向量， 最小化所述度量。

公开(公告)号：US09209935B2

公开(公告)日：2015-12-08

申请号：US14337406

申请日：2014-07-22

Applicant: STMicroelectronics International N.V.

Inventor： Achraf Dhayni ,  Hussein Hijazi

IPC: H04B7/04 ,  H04L1/06 ,  H04L1/00 ,  H04L25/03

CPC classification number: H04L1/0054 ,  H04B7/0413 ,  H04L1/0631 ,  H04L25/03197 ,  H04L25/03242 ,  H04L25/03961 ,  H04L2025/03414 ,  H04L2025/0342 ,  H04L2025/03426

Abstract: A receiver estimates a vector of emitted symbols over a MIMO transmission channel which are emitted by a emitting antennas. The receiver receives a vector of received symbols on receiving antennas. Estimation of the vector of emitted symbols is made by calculating a metric associated with a criterion for each vector of a subset of all possible vectors of emitted symbols and selecting an estimation for said vector of emitted symbol as the vector of emitted symbols among said subset which minimizes said metric.

Abstract translation: 接收机估计由发射天线发射的MIMO传输信道上发射码元的向量。 接收机在接收天线上接收接收符号的向量。 通过计算与发射符号的所有可能向量的子集的每个向量的标准相关联的度量来估计发射符号的矢量，并且将所发射的符号的所述向量的估计选择为所述子集中的发射符号的向量， 最小化所述度量。