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11. 发明授权

US07999659B2 Method for access control 有权
标题翻译：访问控制方法
公开(公告)号：US07999659B2
公开(公告)日：2011-08-16
申请号：US11653383
申请日：2007-01-16
申请人： Ulrich Friedrich
发明人： Ulrich Friedrich
IPC分类号： H04Q5/22
CPC分类号： G06F21/78
摘要： A method for access control to at least one memory area of a passive and/or backscatter-based transponder is provided. In the method for access control, depending on an identification selection criterion, a first or at least one second identification within the transponder is activated, the activated identification upon an appropriate request by reader unit is transmitted to said unit, the at least one memory area of the transponder is divided into memory blocks with a settable size, access control information is assigned to a respective memory block, and read and/or write access to a specific memory block is released or blocked depending on the associated access control information and the identification selection criterion.
摘要翻译：提供了一种用于对基于无源和/或反向散射的应答器的至少一个存储区域的访问控制的方法。在用于访问控制的方法中，根据识别选择标准，激活应答器内的第一或至少一个第二标识，由读取器单元适当请求的激活标识被发送到所述单元，所述至少一个存储区应答器被分成具有可设置大小的存储器块，访问控制信息被分配给相应的存储器块，并且根据相关联的访问控制信息和标识来释放或阻止对特定存储器块的读取和/或写入访问选择标准。

12. 发明申请

US20110163851A1 Method for Locating a Backscatter-Based Transponder 有权
标题翻译：用于定位基于后向散射的应答器的方法
公开(公告)号：US20110163851A1
公开(公告)日：2011-07-07
申请号：US13049649
申请日：2011-03-16
申请人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
发明人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
IPC分类号： H04Q5/22
CPC分类号： H04Q5/22 , G06K7/0008 , G06K19/0723
摘要： A method and apparatus for locating a transponder is provided. A carrier signal is transmitted by a base station and a transponder transmits a locating signal that is generated through phase modulation and backscattering of the carrier signal sent by the base station when the transponder is within a transmission range of the base station, whereby the transponder is located on the basis of the locating signal.
摘要翻译：提供了一种用于定位应答器的方法和装置。载波信号由基站发送，并且应答器在应答器处于基站的传输范围内时，发送通过基站发送的载波信号的相位调制和后向散射产生的定位信号，由此应答器是位于定位信号的基础上。

13. 发明授权

US07859387B2 Backscatter transponder 有权
标题翻译：反向散射转发器
公开(公告)号：US07859387B2
公开(公告)日：2010-12-28
申请号：US11315192
申请日：2005-12-23
申请人： Ulrich Friedrich
发明人： Ulrich Friedrich
IPC分类号： H04Q5/22
CPC分类号： G06K19/0716 , G06K7/0095 , G06K19/0723
摘要： A backscatter transponder for an HF communication system with modulated reradiation, is provided that includes an antenna for receiving high-frequency carrier signals, wherein the antenna has reflective characteristics, a control unit for providing transponder-specific parameters, and a modulator that can be driven by the control unit. The modulator altering the reflective characteristics of the antenna in accordance with at least one transponder-specific parameter.
摘要翻译：提供了一种用于具有调制再辐射的HF通信系统的后向散射转发器，其包括用于接收高频载波信号的天线，其中天线具有反射特性，用于提供转发器特定参数的控制单元和可驱动的调制器由控制单元。调制器根据至少一个转发器特定参数来改变天线的反射特性。

14. 发明授权

US07675964B2 Method for transmitting a plurality of information symbols 有权
标题翻译：用于发送多个信息符号的方法
公开(公告)号：US07675964B2
公开(公告)日：2010-03-09
申请号：US09929703
申请日：2001-08-13
申请人： Ulrich Friedrich
发明人： Ulrich Friedrich
IPC分类号： H04B1/38
CPC分类号： H04L5/04 , H04B1/04
摘要： A plurality of information symbols are transmitted by a carrier wave by assigning different modulation indices to the individual information symbols. Thereby the modulated carrier wave carries information not only by the digitally encoded (modulated) data words but also by the different modulation indices used for successive intervals that thus also represent information symbols. This increases the data rate of a wireless communication. When used in passive identification systems, for example transponders, the transmission of the superimposed clock information eliminates the need for the clock generation logic in the receiver. The reduced energy consumption enables the communication distance to be increased.
摘要翻译：通过向各个信息符号分配不同的调制指数，通过载波发送多个信息符号。因此，调制载波不仅通过数字编码（调制）数据字而且还通过用于连续间隔的不同调制指数传送信息，因此也表示信息符号。这增加了无线通信的数据速率。当被动识别系统（例如转发器）使用时，叠加的时钟信息的传输消除了对接收机中时钟产生逻辑的需要。降低的能量消耗使得能够增加通信距离。

15. 发明申请

US20080061941A1 Method, transponder, and system for secure data exchange 有权
标题翻译：方法，应答器和用于安全数据交换的系统
公开(公告)号：US20080061941A1
公开(公告)日：2008-03-13
申请号：US11819132
申请日：2007-06-25
申请人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
发明人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
IPC分类号： H04B7/00
CPC分类号： H04L9/3226 , H04L2209/805
摘要： A method for data exchange is provided, whereby a first code is generated by a transponder, which is transmitted to a base station, a first transmission information is generated by the base station by encoding a base station code with a first identification and the first random number code, the first transmission information is transmitted to the transponder and the base station code is extracted by the transponder, a second code is generated by the transponder, which is transmitted to the base station upon an associated request from the base station, whereby before a transmission to the base station the second code is encoded with the extracted base station code, a second encoded transmission information comprising a second identification is generated by the base station with use of the second code and transmitted to the transponder, and at least one memory region of the transponder is released for read and/or write access after the second identification was verified as valid. The invention relates further to a transponder and to a system for secure data exchange.
摘要翻译：提供了一种用于数据交换的方法，其中第一代码由发送到基站的应答器生成，基站通过对具有第一标识的基站代码进行编码来生成第一传输信息，并且第一随机数字代码，将第一传输信息发送到应答器，并且基站代码由应答器提取，第二代码由应答器产生，该应答器根据来自基站的相关请求发送到基站，由此在利用所提取的基站代码对第二代码进行编码的传输到基站，由基站使用第二代码生成包括第二标识的第二编码的传输信息并将其发送到应答器，以及至少一个存储器在第二次识别被验证为有效之后，应答器的区域被释放用于读取和/或写入访问。本发明进一步涉及应答器和用于安全数据交换的系统。

16. 发明申请

US20080008265A1 Method, transponder, and system for rapid data transmission 有权
标题翻译：方法，应答器和快速数据传输系统
公开(公告)号：US20080008265A1
公开(公告)日：2008-01-10
申请号：US11819144
申请日：2007-06-25
申请人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
发明人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
IPC分类号： H04L12/56 , H04L27/18 , H04L9/22
CPC分类号： G06K7/0008 , H04L9/0662 , H04L9/0869 , H04L2209/80
摘要： A method for wireless data transmission between a base station and a transponder is provided, whereby a message, comprising at least one command and one data sequence, is transmitted by the base station, the message is received and evaluated by the transponder, at least one key is provided in the transponder after receipt of the command and before complete receipt of the message and the key is transmitted to the base station, the key is detected by the base station, and parts of the message, still to be transmitted, and/or subsequent messages are encoded by the base station with the key.
摘要翻译：提供了一种在基站和应答器之间进行无线数据传输的方法，由此由基站发送包括至少一个命令和一个数据序列的消息，该消息由应答器接收和评估，至少一个密钥在接收到命令后在发送应答器中提供，并且在完成接收到消息之前并且密钥被发送到基站，密钥由基站检测，并且消息的仍然被发送的部分和/ 或后续消息由基站用密钥编码。

17. 发明授权

US07049958B2 Integrated circuit for a transponder 有权
标题翻译：用于应答器的集成电路
公开(公告)号：US07049958B2
公开(公告)日：2006-05-23
申请号：US10849086
申请日：2004-05-18
申请人： Martin Fischer , Ulrich Friedrich
发明人： Martin Fischer , Ulrich Friedrich
IPC分类号： G08B1/08
CPC分类号： G06K19/07749 , H01L27/0676 , H01L27/0788
摘要： An integrated circuit is combined with a transponder to function either as a voltage or power supply for the transponder by extracting energy out of an electromagnetic field transmitted by a base station or as a detector in the transponder to act as a remote sensor. For this purpose the integrated circuit comprises diode rectifiers. Each of the diode rectifiers has a first and a second service terminal and a reference terminal. In order to reduce a parasitic impedance between the first service terminal and the reference terminal, the first service terminal of at least one rectifier diode is electrically connected to a reference potential such as ground. Parasitic diode characteristics are further reduced by surrounding the respective diode or diodes by an electrical conductor path also connected to the reference potential.
摘要翻译：集成电路与应答器组合，通过从基站发送的电磁场或作为应答器中的检测器提取能量作为远程传感器，将发射应答器的电压或电源用作电压或电源。为此，集成电路包括二极管整流器。每个二极管整流器具有第一和第二服务终端和参考终端。为了减小第一服务终端和参考终端之间的寄生阻抗，至少一个整流二极管的第一服务终端电连接到诸如地的参考电位。通过也连接到参考电位的电导体路径围绕相应的二极管或二极管，进一步降低寄生二极管的特性。

18. 发明申请

US20050232369A1 Method and apparatus for wireless data transmission 有权
标题翻译：无线数据传输的方法和装置
公开(公告)号：US20050232369A1
公开(公告)日：2005-10-20
申请号：US11104418
申请日：2005-04-13
申请人： Ulrich Friedrich
发明人： Ulrich Friedrich
IPC分类号： G01S13/75 , G06K7/10 , G08C17/02 , H04B1/59 , H04B1/713 , H04B3/46 , H04L27/02
CPC分类号： H04B1/713
摘要： A method and apparatus for wireless data transmission between a base station and one or more, in particular, passive and/or backscatter-based transponders, in which the base station modulates a carrier signal with a modulation signal, to generate synchronization markers, and transmits the modulated carrier signal. Whereby, a frequency of the modulated carrier signal can be switched between different frequency values.
摘要翻译：一种在基站与一个或多个，特别是基于无源和/或反向散射的应答器之间进行无线数据传输的方法和装置，其中基站用调制信号调制载波信号，以产生同步标记，并发送调制载波信号。由此，调制载波信号的频率可以在不同频率值之间切换。

19. 发明申请

US20050212693A1 Method and apparatus for improving wireless data transmission 有权
标题翻译：用于改善无线数据传输的方法和装置
公开(公告)号：US20050212693A1
公开(公告)日：2005-09-29
申请号：US11087871
申请日：2005-03-24
申请人： Ulrich Friedrich
发明人： Ulrich Friedrich
IPC分类号： G01S13/74 , G01S13/75 , G06K7/00 , G06K7/10 , G08C17/02 , H04L27/00 , H04L29/06 , H04L29/08 , H04L29/14 , H04Q9/00
CPC分类号： H04Q9/00 , G06K7/0008 , H04L67/04 , H04L67/18 , H04L69/22 , H04L69/24
摘要： A method and apparatus includes at least one transponder or sensor to transmit useful data in an asynchronous mode to at least one reader. Before the start of the useful data transmission, the reader transmits a return link header to the transponder or sensor, which contains at least one bit length reference symbol as a reference time to define the bit length in the return link.
摘要翻译：一种方法和装置包括至少一个应答器或传感器，用于以异步模式将有用数据传输到至少一个读取器。在开始有用的数据传输之前，读取器将发送应答器或传感器的返回链路报头发送到应答器或传感器，该转发器或传感器包含至少一个位长度参考符号作为参考时间，以定义返回链路中的位长度。

20. 发明申请

US20050207391A1 Method and modulation control device for wireless data transmission 有权
标题翻译：用于无线数据传输的方法和调制控制装置
公开(公告)号：US20050207391A1
公开(公告)日：2005-09-22
申请号：US11080526
申请日：2005-03-16
申请人： Ulrich Friedrich
发明人： Ulrich Friedrich
IPC分类号： G06K7/00 , G06K7/10 , G08C17/02 , H04J3/06 , H04L7/00 , H04L27/00 , H04L27/02 , H04Q7/38
CPC分类号： G06K7/10039 , G06K7/0008 , H04L27/00
摘要： A method and device for wireless data transmission between a base station and one or more transponders, in which electromagnetic carrier waves are emitted by the base station and symbols are transmitted from a given transponder to the base station by modulation and backscattering of the electromagnetic carrier waves, wherein a change in a modulation state takes place synchronously with synchronization markers transmitted by the base station. A change in the modulation state is carried out by a transponder with a specifiable time delay that is relative to the synchronization markers.
摘要翻译：一种用于在基站和一个或多个转发器之间进行无线数据传输的方法和装置，其中电磁载波由基站发射，符号通过调制和后向散射的电磁载波从给定的转发器发送到基站其中调制状态的变化与基站发送的同步标记同步进行。通过具有相对于同步标记的可指定时间延迟的应答器来执行调制状态的改变。

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