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

US07106709B2 Timing drift compensation in wireless packet-based systems 有权
标题翻译：无线分组系统中的定时漂移补偿
公开(公告)号：US07106709B2
公开(公告)日：2006-09-12
申请号：US09994944
申请日：2001-11-28
申请人： Stefan Davidsson , Mathias Pauli , Peter Schramm , Fabian Wenger , Udo Wachsmann , Roger Walther
发明人： Stefan Davidsson , Mathias Pauli , Peter Schramm , Fabian Wenger , Udo Wachsmann , Roger Walther
IPC分类号： H04Q7/00 , H04J3/06
CPC分类号： H04L27/2657 , H04L7/027 , H04L7/04 , H04L27/2602 , H04L27/2662 , H04L27/2675 , H04L27/2679 , H04L27/2695 , H04L2027/0028 , H04L2027/0095
摘要： A radio receiver system (30) comprises a radio receiver (41), a receiver sample clock (60), which is used for sampling a modulated base-band signal; and a timing correction unit (100). The timing correction unit (100) performs, in the frequency domain, a timing drift compensation between a transmitter sample clock (66) and the receiver sample clock (60). In one example context of implementation, the plural modulated radio frequency carriers have been modulated using Orthogonal Frequency Division Multiplexing (OFDM).
摘要翻译：无线电接收机系统（30）包括无线电接收机（41），接收机采样时钟（60），用于对已调制的基带信号进行采样; 和定时校正单元（100）。定时校正单元（100）在频域中执行发射机采样时钟（66）和接收机采样时钟（60）之间的定时漂移补偿。在一个实施例的上下文中，已经使用正交频分复用（OFDM）调制了多个调制的射频载波。

2. 发明授权

US07760834B2 Method and device for providing timing information in a wireless communication system 有权
公开(公告)号：US07760834B2
公开(公告)日：2010-07-20
申请号：US11955238
申请日：2007-12-12
申请人： Fabian Wenger , Uwe Dettmar , Udo Wachsmann , Peter Schramm
发明人： Fabian Wenger , Uwe Dettmar , Udo Wachsmann , Peter Schramm
IPC分类号： H04L7/00
CPC分类号： H04L7/042 , H04L7/007 , H04L7/04 , H04L27/2613 , H04L27/2662 , H04W56/0085
摘要： A method and a device of providing timing information within a wireless communication system is described. The timing information is extracted from a received transmit signal. The inventive method comprises the steps of providing a training signal on the receiver side relating to a known signal portion of the transmit signal, scaling the training signal, quantizing the scaled training signal, correlating one or more parts of the received transmit signal with the scaled training signal to obtain one or more correlation results, and determining the timing information on the basis of the correlation results.

3. 发明授权

US07327817B2 Method and device for providing timing information in a wireless communication system 有权
标题翻译：用于在无线通信系统中提供定时信息的方法和装置
公开(公告)号：US07327817B2
公开(公告)日：2008-02-05
申请号：US10751117
申请日：2004-01-05
申请人： Fabian Wenger , Uwe Dettmar , Udo Wachsmann , Peter Schramm
发明人： Fabian Wenger , Uwe Dettmar , Udo Wachsmann , Peter Schramm
IPC分类号： H04L7/00
CPC分类号： H04L7/042 , H04L7/007 , H04L7/04 , H04L27/2613 , H04L27/2662 , H04W56/0085
摘要： A method and a device of providing timing information within a wireless communication system is described. The timing information is extracted from a received transmit signal. The inventive method comprises the steps of providing a training signal on the receiver side relating to a known signal portion of the transmit signal, scaling the training signal, quantizing the scaled training signal, correlating one or more parts of the received transmit signal with the scaled training signal to obtain one or more correlation results, and determining the timing information on the basis of the correlation results.
摘要翻译：描述了在无线通信系统内提供定时信息的方法和装置。从所接收的发送信号中提取定时信息。本发明的方法包括以下步骤：在接收机侧提供与发射信号的已知信号部分相关的训练信号，缩放训练信号，量化缩放的训练信号，将接收的发射信号的一个或多个部分与缩放的训练信号以获得一个或多个相关结果，以及基于相关结果确定定时信息。

4. 发明授权

US07729460B2 Method and device for providing timing information in a wireless communication system 有权
标题翻译：用于在无线通信系统中提供定时信息的方法和装置
公开(公告)号：US07729460B2
公开(公告)日：2010-06-01
申请号：US11955263
申请日：2007-12-12
申请人： Fabian Wenger , Uwe Dettmar , Udo Wachsmann , Peter Schramm
发明人： Fabian Wenger , Uwe Dettmar , Udo Wachsmann , Peter Schramm
IPC分类号： H04L7/00
CPC分类号： H04L7/042 , H04L7/007 , H04L7/04 , H04L27/2613 , H04L27/2662 , H04W56/0085
摘要： A method and a device of providing timing information within a wireless communication system is described. The timing information is extracted from a received transmit signal. The inventive method comprises the steps of providing a training signal on the receiver side relating to a known signal portion of the transmit signal, scaling the training signal, quantizing the scaled training signal, correlating one or more parts of the received transmit signal with the scaled training signal to obtain one or more correlation results, and determining the timing information on the basis of the correlation results.
摘要翻译：描述了在无线通信系统内提供定时信息的方法和装置。从所接收的发送信号中提取定时信息。本发明的方法包括以下步骤：在接收机侧提供与发射信号的已知信号部分相关的训练信号，缩放训练信号，量化缩放的训练信号，将接收的发射信号的一个或多个部分与缩放的训练信号以获得一个或多个相关结果，以及基于相关结果确定定时信息。

5. 发明授权

US07333449B2 Unequal error protection in a packet transmission system 有权
标题翻译：分组传输系统中的不平等的错误保护
公开(公告)号：US07333449B2
公开(公告)日：2008-02-19
申请号：US10432519
申请日：2001-11-27
申请人： Gerd Zimmermann , Hui Li , Fabian Wenger , Jan Lindskog , Mathias Pauli
发明人： Gerd Zimmermann , Hui Li , Fabian Wenger , Jan Lindskog , Mathias Pauli
IPC分类号： H04B7/212
CPC分类号： H04L1/007 , H04L1/0003 , H04L1/0009 , H04L1/08
摘要： In a packet transmission system, especially wireless transmission system, where data is transmitted in packets at different error protection levels and where the error protection level of one packet (=the succeeding packet) may differ from the error protection level of a preceding packet without providing code termination between the said preceding and the said succeeding packet the performance may degrade in case a different error protection level is used by the preceding packet and the succeeding packet. The invention proposes in these cases to insert a supplementary packet between the preceding and the succeeding packet whereby the error protection level of the supplementary packet is higher than the lowest error protection level that is used either by the preceding or the succeeding packet.
摘要翻译：在分组传输系统中，特别是无线传输系统，其中数据以不同的错误保护级别以分组传输，并且一个分组（=后续分组）的错误保护级别可能不同于前一分组的错误保护级别而不提供在前一个分组和后续分组使用不同的错误保护级别的情况下，所述前一个和所述后续分组之间的代码终止可能会降级。本发明在这些情况下提出在前一个分组之间插入补充分组，由此补充分组的错误保护等级高于由前一个或后续分组使用的最低的错误保护等级。

6. 发明授权

US08447367B2 Process measurement instrument adapted for wireless communication 有权
标题翻译：适用于无线通信的过程测量仪器
公开(公告)号：US08447367B2
公开(公告)日：2013-05-21
申请号：US11800605
申请日：2007-05-07
申请人： Fabian Wenger
发明人： Fabian Wenger
IPC分类号： H04M1/00 , G01F23/00 , G08B17/10
CPC分类号： G08C17/04 , G01F23/284 , H04Q9/00 , H04Q2209/43 , H04Q2209/883
摘要： A process measurement instrument adapted for wireless communication, comprising a measurement unit (7) arranged to determine a measurement value of a process variable, a memory (21) arranged to store a current measurement value of the process variable, a wireless communication unit (8), arranged to access the current measurement value and communicate the current measurement value over a wireless communication channel according to a protocol with intermittently active communication, and arbitration logic (22), in communication with the measurement unit and the wireless communication unit, and arranged to ensure that active periods of the measurement unit occur when the wireless communication is inactive.The measurement unit and communication unit are thus able to share information via the common memory, e.g. by sequential read/write access. This avoids the need for simultaneous activity. The invention can be especially advantageous when the instrument is powered by an internal power store, such as a battery, and extend the lifetime of such a power store.
摘要翻译：一种适于无线通信的过程测量仪器，包括：测量单元（7），用于确定过程变量的测量值;布置成存储过程变量的当前测量值的存储器（21）;无线通信单元（8）），其被布置成访问当前测量值并根据具有间歇活动通信的协议通过无线通信信道传达当前测量值，以及与测量单元和无线通信单元通信的仲裁逻辑（22），并且布置以确保当无线通信不活动时发生测量单元的活动周期。因此，测量单元和通信单元能够经由公共存储器共享信息，例如，通过顺序读/写访问。这避免了同时进行的活动。当仪器由诸如电池的内部功率存储器供电时，本发明可以是特别有利的，并延长了这种电力存储器的寿命。

7. 发明申请

US20130069817A1 INTERMITTENT SURFACE MEASUREMENT 有权
标题翻译：间隙表面测量
公开(公告)号：US20130069817A1
公开(公告)日：2013-03-21
申请号：US13238443
申请日：2011-09-21
申请人： Fabian Wenger
发明人： Fabian Wenger
IPC分类号： G01S13/08
CPC分类号： G01F23/284 , G01S13/08
摘要： A method of determining a filling level of a product contained in a tank, the method comprising the steps of: a) transmitting an electromagnetic probing signal towards a target area of a surface of the product; b) receiving a reflected probing signal being a reflection of the electromagnetic probing signal at the surface; c) determining a parameter value indicative of an amplitude of the reflected probing signal; if the parameter value is indicative of an amplitude larger than a predetermined threshold value: d) transmitting an electromagnetic measuring signal towards the target area of the surface; e) receiving a return signal being a reflection of the electromagnetic measuring signal at the surface; and f) determining the filling level based on a time relation between the electromagnetic measuring signal and the return signal.
摘要翻译：一种确定包含在罐中的产品的填充水平的方法，所述方法包括以下步骤：a）向所述产品的表面的目标区域发送电磁探测信号; b）接收反射的探测信号，作为表面上电磁探测信号的反射; c）确定指示所述反射探测信号的振幅的参数值; 如果所述参数值表示大于预定阈值的幅度，则d）向所述表面的目标区域传送电磁测量信号; e）接收作为表面上的电磁测量信号的反射的返回信号; 以及f）基于所述电磁测量信号和所述返回信号之间的时间关系来确定所述填充水平。

8. 发明授权

US08260319B2 Wireless transceiver 有权
标题翻译：无线收发器
公开(公告)号：US08260319B2
公开(公告)日：2012-09-04
申请号：US12136361
申请日：2008-06-10
申请人： Fabian Wenger , Mats Nordlund
发明人： Fabian Wenger , Mats Nordlund
IPC分类号： H04W24/00
CPC分类号： G01S5/0289 , G01S13/756
摘要： The present invention relates to a method for determining a distance between a wireless transceiver and a wireless receiver arranged to communicate with each other in a wireless communication network, the wireless receiver having an active and an inactive reception state, the method comprising transmitting, with the wireless receiver in the active reception state, a first transmission signal, receiving a first reflection signal, the first reflection signal being a reflection of the first transmission signal and influenced by the active reception state of the wireless receiver, transmitting, with the wireless receiver in the inactive reception state, a second transmission signal, receiving a second reflected signal, the second reflection signal being a reflection of the second transmission signal and influenced by the inactive reception state of the wireless receiver, and determining a distance between the wireless transceiver and the wireless receiver based on the second reflection signal.
摘要翻译：本发明涉及一种用于确定无线收发机和无线接收机之间的距离的方法，所述无线收发机和无线接收机被布置为在无线通信网络中彼此通信，所述无线接收机具有主动和非活动接收状态，所述方法包括：处于主动接收状态的无线接收机，第一发送信号，接收第一反射信号，第一反射信号是第一发送信号的反射并受无线接收机的主动接收状态的影响，与无线接收机进行通信所述无效接收状态，第二发送信号，接收第二反射信号，所述第二反射信号是所述第二发送信号的反射并受到所述无线接收机的无效接收状态的影响，以及确定所述无线收发器与所述无线收发器之间的距离基于第二反射信号的无线接收机纳尔

9. 发明申请

US20080278145A1 Process measurement instrument adapted for wireless communication 有权
标题翻译：适用于无线通信的过程测量仪器
公开(公告)号：US20080278145A1
公开(公告)日：2008-11-13
申请号：US11800605
申请日：2007-05-07
申请人： Fabian Wenger
发明人： Fabian Wenger
IPC分类号： G01R19/00
CPC分类号： G08C17/04 , G01F23/284 , H04Q9/00 , H04Q2209/43 , H04Q2209/883
摘要： A process measurement instrument adapted for wireless communication, comprising a measurement unit (7) arranged to determine a measurement value of a process variable, a memory (21) arranged to store a current measurement value of the process variable, a wireless communication unit (8), arranged to access the current measurement value and communicate the current measurement value over a wireless communication channel according to a protocol with intermittently active communication, and arbitration logic (22), in communication with the measurement unit and the wireless communication unit, and arranged to ensure that active periods of the measurement unit occur when the wireless communication is inactive.The measurement unit and communication unit are thus able to share information via the common memory, e.g. by sequential read/write access. This avoids the need for simultaneous activity. The invention can be especially advantageous when the instrument is powered by an internal power store, such as a battery, and extend the lifetime of such a power store.
摘要翻译：一种适用于无线通信的过程测量仪器，包括：测量单元（7），用于确定过程变量的测量值;存储器（21），其被布置为存储所述过程变量的当前测量值;无线通信单元（8）），其被布置成访问当前测量值并根据具有间歇活动通信的协议通过无线通信信道传达当前测量值，以及与测量单元和无线通信单元通信的仲裁逻辑（22），并且布置以确保当无线通信不活动时发生测量单元的活动周期。因此，测量单元和通信单元能够经由公共存储器共享信息，例如，通过顺序读/写访问。这避免了同时进行的活动。当仪器由诸如电池的内部功率存储器供电时，本发明可以是特别有利的，并延长了这种电力存储器的寿命。

10. 发明授权

US06239730B1 Method and device for maximizing the ratio between signal and quantization noise when converting between analogue and digital form of a multi-carrier signal 有权
标题翻译：用于在多载波信号的模拟和数字形式之间转换时最大化信号与量化噪声之间的比率的方法和装置
公开(公告)号：US06239730B1
公开(公告)日：2001-05-29
申请号：US09438262
申请日：1999-11-10
申请人： Fabian Wenger
发明人： Fabian Wenger
IPC分类号： H03M100
CPC分类号： H03M1/0854 , H03M1/12
摘要： Device (200; 500) for minimizing the quantization noise in conversion between analogue and digital form of a multi-carrier signal comprising an AC component (VAC) with a particular RMS value (VRMS). The device comprises means (230; 530) for converting between analogue and digital form with a limited number (b) of bits within a quantization range (±VQR), means (215,235,245,255; 520) for minimizing the noise by creating an ideal ratio (VQR/VRMS) between the quantization range and the RMS value of the AC component, and means for reducing unwanted DC components in the signal and centering the signal by the wanted DC components being placed in the centre of the quantization range. The device is characterized by the fact that it comprises means (235,245,255; 520) for calculating a scaling factor a for the AC component which is used to create an ideal ratio between the root mean square value, the RMS value, of the signal and the quantization range (±VQR), means (215; 510) for multiplication of the AC component by the scaling factor &agr; before the conversion (230; 530), whereby the required ratio (VQR/VRMS) between the RMS value of the AC component (VRMS) and the quantization range (VQR) is obtained.
摘要翻译：用于最小化包括具有特定RMS值（VRMS）的AC分量（VAC）的多载波信号的模拟和数字形式之间的转换中的量化噪声的装置（200; 500）。该装置包括用于在量化范围（±VQR）内用有限数量（b）位的模拟和数字形式之间转换的装置（230; 530），用于通过产生理想比例来最小化噪声的装置（215,235,245,255; 520） VQR / VRMS），以及用于减少信号中的不需要的DC分量并将信号定中心的DC分量置于量化范围的中心的装置。该装置的特征在于它包括用于计算AC分量的缩放因子α的装置（235,245,255; 520），其用于产生信号的均方根值，RMS值与量化范围（±VQR），用于在转换（230; 530）之前将AC分量乘以缩放因子α的装置（215; 510），由此AC分量的RMS值之间的所需比率（VQR / VRMS）（VRMS）和量化范围（VQR）。

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