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    • 1. 发明申请
    • Determining Frequency Errors in a Multi-Carrier Receiver
    • 确定多载波接收机中的频率误差
    • US20150358192A1
    • 2015-12-10
    • US14110875
    • 2012-03-14
    • Thomas NilssonJianjun ChenAmit Singh
    • Thomas NilssonJianjun ChenAmit Singh
    • H04L27/26H04B1/10
    • H04L27/2657H04B1/1081H04L25/0222H04L27/0014H04L27/2672H04L27/2675H04L27/2695
    • Individual multipath components of digital data symbols sent from a transmitter on at least two carrier frequencies generated from a common clock signal, are received (401) with individual delays and processed by a receiver unit having at least two fingers. Successive channel estimates are determined (402) from received symbols for each finger and each carrier, and an estimated frequency error is determined (404) for each finger and each carrier. A linear equation system is constructed (405), in which each determined frequency error is expressed as a function of a first variable indicative of frequency drift and a second variable indicative of frequency error caused by Doppler effect. The equation system is solved (406) to provide a solution with estimates of the first and second variables for each finger, and an estimated frequency drift is determined (407) from the solution and utilized (408) as feedback signal for adjusting receiver clock frequency.
    • 在从公共时钟信号产生的至少两个载波频率上从发射机发送的数字数据符号的单个多径分量被接收(401)并具有单独的延迟,并由具有至少两个手指的接收机单元进行处理。 从每个手指和每个载体的接收符号确定连续信道估计(402),并且为每个手指和每个载波确定估计的频率误差(404)。 构造线性方程组(405),其中每个确定的频率误差被表示为指示频率漂移的第一变量的函数,以及指示由多普勒效应引起的频率误差的第二变量。 求解方程系统(406)以提供每个手指的第一和第二变量的估计的解,并且从解中确定估计的频率漂移(407),并将其用作用于调整接收机时钟频率的反馈信号(408) 。
    • 2. 发明授权
    • Frequency offset compensation for multi-carrier communication systems
    • 多载波通信系统的频偏补偿
    • US08861657B2
    • 2014-10-14
    • US13695885
    • 2011-05-06
    • Thomas NilssonAmit Singh
    • Thomas NilssonAmit Singh
    • H03D1/00H04L27/26
    • H04L27/2647H04L27/2657H04L27/2672H04L27/2675H04L27/2695
    • The present disclosure provides a frequency offset compensation technique for use by a multi-carrier receiver. Compared with legacy receiver designs, the technique introduces a new function which correlates various frequency offsets of the different carriers involved in multi-carrier signal transmission and reception. This new function can be coupled with an Automatic Frequency Control (AFC) function which can then utilize the correlation information provided by the new function to achieve significantly better frequency error/offset estimation when the carriers are correlated. As a method aspect, the frequency offset compensation technique comprises the steps of receiving signals modulated on a plurality of carrier frequencies, deriving a frequency offset for each carrier frequency to thereby provide a plurality of frequency offsets corresponding to the plurality of carrier frequencies; correlating these plurality of frequency offsets; and controlling compensation of the frequency offsets based on a result of the correlation.
    • 本公开提供了一种用于多载波接收机的频偏补偿技术。 与传统接收机设计相比,该技术引入了一种新功能,其将多载波信号传输和接收中涉及的不同载波的各种频率偏移相关联。 该新功能可以与自动频率控制(AFC)功能耦合,然后可以利用新功能提供的相关信息,在载波相关时实现明显更好的频率误差/偏移估计。 作为方法方面,频偏补偿技术包括以下步骤:接收在多个载波频率上调制的信号,导出每个载波频率的频率偏移,从而提供对应于多个载波频率的多个频率偏移; 将这些多个频率偏移相关联; 并根据相关性的结果控制频偏的补偿。
    • 3. 发明申请
    • Frequency Offset Compensation for Multi-carrier Communication Systems
    • 多载波通信系统频偏补偿
    • US20130202069A1
    • 2013-08-08
    • US13695885
    • 2011-05-06
    • Thomas NilssonAmit Singh
    • Thomas NilssonAmit Singh
    • H04L27/26
    • H04L27/2647H04L27/2657H04L27/2672H04L27/2675H04L27/2695
    • The present disclosure provides a frequency offset compensation technique for use by a multi-carrier receiver. Compared with legacy receiver designs, the technique introduces a new function which correlates various frequency offsets of the different carriers involved in multi-carrier signal transmission and reception. This new function can be coupled with an Automatic Frequency Control (AFC) function which can then utilize the correlation information provided by the new function to achieve significantly better frequency error/offset estimation when the carriers are correlated. As a method aspect, the frequency offset compensation technique comprises the steps of receiving signals modulated on a plurality of carrier frequencies, deriving a frequency offset for each carrier frequency to thereby provide a plurality of frequency offsets corresponding to the plurality of carrier frequencies; correlating these plurality of frequency offsets; and controlling compensation of the frequency offsets based on a result of the correlation.
    • 本公开提供了一种用于多载波接收机的频偏补偿技术。 与传统接收机设计相比,该技术引入了一种新功能,其将多载波信号传输和接收中涉及的不同载波的各种频率偏移相关联。 该新功能可以与自动频率控制(AFC)功能耦合,然后可以利用新功能提供的相关信息,在载波相关时实现明显更好的频率误差/偏移估计。 作为方法方面,频偏补偿技术包括以下步骤:接收在多个载波频率上调制的信号,导出每个载波频率的频率偏移,从而提供对应于多个载波频率的多个频率偏移; 将这些多个频率偏移相关联; 并根据相关性的结果控制频偏的补偿。
    • 4. 发明授权
    • Determining frequency errors in a multi-carrier receiver
    • 确定多载波接收机中的频率误差
    • US09413579B2
    • 2016-08-09
    • US14110875
    • 2012-03-14
    • Thomas NilssonJianjun ChenAmit Singh
    • Thomas NilssonJianjun ChenAmit Singh
    • H04B1/10H04L27/26H04L25/02H04L27/00
    • H04L27/2657H04B1/1081H04L25/0222H04L27/0014H04L27/2672H04L27/2675H04L27/2695
    • Individual multipath components of digital data symbols sent from a transmitter on at least two carrier frequencies generated from a common clock signal, are received (401) with individual delays and processed by a receiver unit having at least two fingers. Successive channel estimates are determined (402) from received symbols for each finger and each carrier, and an estimated frequency error is determined (404) for each finger and each carrier. A linear equation system is constructed (405), in which each determined frequency error is expressed as a function of a first variable indicative of frequency drift and a second variable indicative of frequency error caused by Doppler effect. The equation system is solved (406) to provide a solution with estimates of the first and second variables for each finger, and an estimated frequency drift is determined (407) from the solution and utilized (408) as feedback signal for adjusting receiver clock frequency.
    • 在从公共时钟信号产生的至少两个载波频率上从发射机发送的数字数据符号的单个多径分量被接收(401)并具有单独的延迟,并由具有至少两个手指的接收机单元进行处理。 从每个手指和每个载体的接收符号确定连续信道估计(402),并且为每个手指和每个载波确定估计的频率误差(404)。 构造线性方程组(405),其中每个确定的频率误差被表示为指示频率漂移的第一变量的函数,以及指示由多普勒效应引起的频率误差的第二变量。 求解方程系统(406)以提供每个手指的第一和第二变量的估计的解,并且从解中确定估计的频率漂移(407),并将其用作用于调整接收机时钟频率的反馈信号(408) 。
    • 5. 发明授权
    • Alarm device
    • 报警装置
    • US08528372B2
    • 2013-09-10
    • US13055065
    • 2009-05-20
    • Thomas Nilsson
    • Thomas Nilsson
    • E05B73/00
    • E05B73/0017E05B45/005E05B73/0029Y10T70/483Y10T70/5004Y10T70/5031Y10T70/7057Y10T70/7904
    • Security device comprising a clasping member that comprises a conducting member, a locking member connected to the clasping member, such that the locking member and the clasping member form a loop, the locking member in turn comprising: a gear member comprising a protruding profile, the gear member extending in a first plane with the protruding profile raised from the first plane, a maneuvering member extending in a second plane parallel to the first plane, the maneuvering member being rotatable relative the gear member and comprising a latch member biased towards the first plane arranged to engage the gear member, such that rotation of the maneuvering member in opposite directions causes a narrowing or a widening of the loop. Rotation in a opposite direction is prevented through the engagement of the latch member with the protruding profile.
    • 安全装置包括夹紧构件,其包括导电构件,连接到夹紧构件的锁定构件,使得锁定构件和夹紧构件形成环,该锁定构件依次包括:齿轮构件,包括突出轮廓, 齿轮构件在第一平面中延伸,突出轮廓从第一平面升高,操纵构件在平行于第一平面的第二平面中延伸,操纵构件可相对于齿轮构件旋转,并且包括朝向第一平面偏置的闩锁构件 布置成接合齿轮构件,使得操纵构件在相反方向上的旋转导致环的变窄或变宽。 通过闩锁构件与突出轮廓的接合来防止沿相反方向的旋转。
    • 7. 发明申请
    • ALARM DEVICE
    • 报警装置
    • US20110308283A1
    • 2011-12-22
    • US13055065
    • 2009-05-20
    • Thomas Nilsson
    • Thomas Nilsson
    • E05B45/08
    • E05B73/0017E05B45/005E05B73/0029Y10T70/483Y10T70/5004Y10T70/5031Y10T70/7057Y10T70/7904
    • Security device (10) comprising a clasping member (100) for enclosing an object to be secured, the clasping member comprising a conducting member, a locking member (200) connected to the clasping member, such that the locking member (100) and the clasping member (200) form a loop, the locking member in turn comprising, a gear member (290) comprising a protruding profile (292), the gear member (290) extending in a first plane with a protruding profile (292) raised from the first plane, a manoeuvring member (220) extending in a second plane parallel to the first plane, the manoeuvring member (220) being rotatable relative the gear member (290) and comprising a latch member (231, 232) biased towards the first plane arranged to engage the gear member (290), such that rotation of the manoeuvring member (220) in one direction causes a narrowing of the loop whereas rotation in the opposite direction causing a widening of the loop. Rotation in the opposite direction is prevented through the engagement of the latch member (231, 232) with the protruding profile (292). A pulling of the clasping member (100) in the locked position causes a movement of a movable element (245, 246) towards an elastic element (247, 248) deforming the latter thereby interrupting the alarm circuit of the security device (10) and activating an alarm signal.
    • 安全装置(10),包括用于封闭要固定的物体的夹紧构件(100),所述夹紧构件包括导电构件,连接到所述夹紧构件的锁定构件(200),使得所述锁定构件(100)和 夹紧构件(200)形成环,所述锁定构件又包括包括突出轮廓(​​292)的齿轮构件(290),所述齿轮构件(290)在第一平面中延伸,突出轮廓(​​292)从 所述第一平面,平行于所述第一平面的第二平面中延伸的操纵构件(220),所述操纵构件(220)可相对于所述齿轮构件(290)旋转,并且包括朝向所述第一平面偏压的闩构件(231,232) 平面布置成接合齿轮构件(290),使得机动构件(220)在一个方向上的旋转导致环路变窄,而在相反方向上的旋转导致环路的加宽。 通过闩锁构件(231,232)与突出轮廓(​​292)的接合来防止沿相反方向的旋转。 夹紧构件(100)在锁定位置的拉动导致可动元件(245,246)朝向使其变形的弹性元件(247,248)的移动,从而中断安全装置(10)的报警电路,并且 激活报警信号。