专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07525374B2 Multi-level demodulation method and device 有权
标题翻译：多级解调方法及装置
公开(公告)号：US07525374B2
公开(公告)日：2009-04-28
申请号：US11386551
申请日：2006-03-21
申请人： Gérard Robert , François Dehmas , Elisabeth Crochon , Jacques Reverdy
发明人： Gérard Robert , François Dehmas , Elisabeth Crochon , Jacques Reverdy
IPC分类号： H04L25/34
CPC分类号： G06K19/0723
摘要： The invention relates to a method for demodulating information emitted by amplitude modulation by a reader (2) to a transponder (4) comprising: a step to compare variations of a slaving voltage (Vc) of the transponder (4) with threshold values, and to transform the result of this comparison into an authorized modulation level skip value, a step to add this skip to a previous first modulation level to determine a second modulation level.
摘要翻译：本发明涉及一种用于将通过读取器（2）的幅度调制发射的信息解调到转发器（4）的方法，包括：将应答器（4）的从动电压（Vc）与阈值进行比较的步骤，以及将该比较的结果变换为授权的调制级别跳过值，将该跳过添加到先前的第一调制级别以确定第二调制级别的步骤。

2. 发明授权

US08045640B2 Two-level demodulation method and device 有权
标题翻译：两级解调方法及装置
公开(公告)号：US08045640B2
公开(公告)日：2011-10-25
申请号：US11386552
申请日：2006-03-21
申请人： Gérard Robert , François Dehmas , Elisabeth Crochon , Jacques Reverdy
发明人： Gérard Robert , François Dehmas , Elisabeth Crochon , Jacques Reverdy
IPC分类号： H04L25/34
CPC分类号： H04B5/0068 , H04B5/02
摘要： The invention relates to a method for demodulating information emitted by amplitude modulation with two levels by a reader (2) to a transponder (4), comprising a step to determine if this symbol is identical to or is different from the previous symbol, after each symbol.
摘要翻译：本发明涉及一种用于通过读取器（2）向应答器（4）对具有两个级别的幅度调制发射的信息进行解调的方法，包括以下步骤：确定该符号是否与先前符号相同或不同于先前符号符号。

3. 发明授权

US08503504B2 Method for estimating a carrier-frequency shift in a telecommunication signals receiver, notably a mobile device 有权
标题翻译：用于估计电信信号接收机，特别是移动设备中的载波频移的方法
公开(公告)号：US08503504B2
公开(公告)日：2013-08-06
申请号：US12710005
申请日：2010-02-22
申请人： François Dehmas
发明人： François Dehmas
IPC分类号： H04B1/00
CPC分类号： H04B1/7087 , H04B1/707 , H04B1/7075
摘要： This method for estimating a carrier-frequency offset in a telecommunication signals receiver comprises the following steps: computation of the partial correlations relating to several successive portions of a reference binary sequence, each partial correlation being computed between a portion of a signal received by the receiver at said carrier frequency, this signal comprising said reference binary sequence, and a predetermined portion of said reference binary sequence stored and/or generated by the receiver, in several possible relative positions between the received signal and the predetermined portion, and determination of the carrier-frequency offset from the computed partial correlations. It also comprises a step of selecting a synchronization position and the determination step comprises the estimation of a phase shift between computed partial correlations at the selected synchronization position.
摘要翻译：用于估计电信信号接收机中的载波频率偏移的方法包括以下步骤：计算与参考二进制序列的若干连续部分相关的部分相关性，每个部分相关性在由接收机接收的信号的一部分之间计算在所述载波频率下，该信号包括所述参考二进制序列和由接收机在接收信号和预定部分之间的几个可能的相对位置中存储和/或生成的所述参考二进制序列的预定部分，以及载波的确定与计算的部分相关性的频率偏移。它还包括选择同步位置的步骤，并且确定步骤包括估计所选择的同步位置处的计算的部分相关之间的相移。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式