公开(公告)号：US06947560B1

公开(公告)日：2005-09-20

申请号：US09461766

申请日：1999-12-15

申请人： Ben Smeets ,  Mattias Hansson ,  Joakim Persson

发明人： Ben Smeets ,  Mattias Hansson ,  Joakim Persson

IPC分类号： G09C1/00 ,  H04L9/08 ,  H04L9/16

CPC分类号： G06Q20/3829 ,  H04L9/0861

摘要： The present invention includes a method and device for calculating an encryption key, K′c, for use in the initialization of an encryption algorithm. The present invention discloses a method for calculating the encryption key, K′c(x), by obtaining a ciphering key, Kc(x), determining a maximum ciphering key length, L, based on the requirements of the two devices wishing to communicate, and determining a maximum usable encryption key length, Lmax. The ciphering key, Kc(x), is then manipulated through an addition function or an exclusively-or function with a polynomial g1(x). The result is multiplied with a polynomial g2(x), which spreads the starting points of said encryption key, K′c(x). The encryption key is thus determined according to K′c(x)=g2(L)(x)[Kc(x) mod g1(L)(x)]. The method of calculating the encryption key, K′c, ensures that a maximum ciphering key length is not exceeded. In addition, the method provides new possible starting points each time a new encryption key, K′c, is generated.

摘要翻译： 本发明包括用于计算加密密钥的方法和装置，用于加密算法的初始化。 本发明公开了一种通过获得加密密钥K C（x）来计算加密密钥K'C（x）的方法，确定最大加密密钥 长度L，基于希望通信的两个设备的要求，以及确定最大可用加密密钥长度L最大值。 然后，通过加法函数或具有多项式g 1（x）的排他或函数来操纵加密密钥K（x）。 结果乘以扩展所述加密密钥K'C（x）的起始点的多项式g <2>（x）。 因此，根据K'（x）= g 2（L）（x）[K C（C））确定加密密钥 （x）mod g <1>（L）（x）]。 计算加密密钥的方法K'确保不超过最大加密密钥长度。 另外，每当生成新的加密密钥K'时，该方法提供新的可能的起始点。

公开(公告)号：US06754824B1

公开(公告)日：2004-06-22

申请号：US09415542

申请日：1999-10-08

申请人： Joakim Persson ,  Ben Smeets

发明人： Joakim Persson ,  Ben Smeets

IPC分类号： H04L900

CPC分类号： H04L9/3242 ,  H04L2209/34

摘要： A telecommunications system and method is disclosed for implementing a message authentication code (MAC) for transmitted digital information signals. Digital information signals typically include an error detecting code, such as a Cyclic Redundancy Check (CRC) code, to ensure reliable delivery of the information. In order to verify the identity of the sending node, the CRC code can be modulated by a sequence known only to the participating nodes. Thus, the CRC code not only provides an error detecting function, but also serves as a message authentication code.

摘要翻译： 公开了用于实现用于发送的数字信息信号的消息认证码（MAC）的电信系统和方法。 数字信息信号通常包括诸如循环冗余校验（CRC）代码的错误检测码，以确保信息的可靠传送。 为了验证发送节点的身份，CRC码可以通过参与节点已知的序列进行调制。 因此，CRC码不仅提供错误检测功能，而且还用作消息认证码。

公开(公告)号：US20140106915A1

公开(公告)日：2014-04-17

申请号：US14124080

申请日：2012-06-07

申请人： Michael Kistler ,  Markus Maag ,  Christoph Schiedt ,  Pär Martinsson ,  Joakim Persson ,  Michael Trevor ,  Nick Downes

发明人： Michael Kistler ,  Markus Maag ,  Christoph Schiedt ,  Pär Martinsson ,  Joakim Persson ,  Michael Trevor ,  Nick Downes

IPC分类号： F16H7/08

CPC分类号： F16H7/08 ,  B27B17/14

摘要： To facilitate the demounting of a chain (3) from a chainsaw, the saw has a lever arm preferably in the form of hinged cover (11) arranged to displace the sprocket (15) towards the guide bar (2) the other upon opening of the cover (11). Upon closing the cover (11), the sprocket (15) is displaced in the opposite direction to pre-tension the chain (3). The sprocket (15, 115) may be driven over a gear transmission (27, 127), which when the chain (3, 103) is running at ordinary cutting speed uses resulting forces to automatically tension the chain (3, 103) by displacing the sprocket (15, 115) away from the guide bar (2, 102). A ratchet mechanism (34) may be provided to maintain the chain tension upon reduction of the chain speed by preventing the sprocket (15) from moving toward the guide bar (2).Alternatively, a mechanism for automatically tensioning the chain (3, 238) of a chainsaw includes a driving inner sprocket (76, 201), and an outer ring member (77, 204) surrounding the inner sprocket (76, 201). A spring (64, 87, 228) may be provided for assisting the ratchet mechanism or as a substitute therefore.

摘要翻译： 为了便于从链锯拆卸链条（3），锯具有杠杆臂，优选地为铰接盖（11）的形式，该铰链盖（11）布置成在链条（3）打开时将链轮（15）移向导杆 盖（11）。 在关闭盖（11）时，链轮（15）沿相反方向移位以预紧链条（3）。 链轮（15,115）可以被驱动通过齿轮传动装置（27,127），当齿轮传动装置（3,103）以普通的切割速度运行时，齿轮传动装置（27,127）使用所产生的力来通过移动来自动拉紧链条（3,103） 所述链轮（15,115）远离所述导杆（2,102）。 可以设置棘轮机构（34），以通过防止链轮（15）朝向导杆（2）移动而在链条速度降低时保持链条张力。 或者，用于自动张紧链锯（2,3,238）的机构包括驱动内链轮（76,201）和围绕内链轮（76,201）的外环构件（77,204）。 可以设置弹簧（64,87,228），用于辅助棘轮机构或作为替代物。

公开(公告)号：US06768795B2

公开(公告)日：2004-07-27

申请号：US09758665

申请日：2001-01-11

申请人： Alberto Diego Jimenez Feltström ,  Mats Ormin ,  Ulf Axel Lindgren ,  Joakim Persson

发明人： Alberto Diego Jimenez Feltström ,  Mats Ormin ,  Ulf Axel Lindgren ,  Joakim Persson

IPC分类号： H04M900

CPC分类号： H04M1/585

摘要： A side-tone control unit for a telecommunication instrument is configured to include a side-tone amplifier having a transfer function selectively controlled in accordance with a set of amplifier parameters, and a side-tone controller, coupled to the side-tone amplifier, for selectively applying the set of amplifier parameters to the side-tone amplifier based on the detected energy of an uplink signal and the detected energy of a downlink signal. The side tone controller can select a particular set of amplifier parameters by indexing a table in accordance with quantized values of the detected uplink signal energy and the detected downlink signal energy.

摘要翻译： 用于电信仪器的侧音控制单元被配置为包括具有根据一组放大器参数选择性地控制的传递函数的侧调放大器和耦合到侧音放大器的侧调控制器，用于 基于检测到的上行链路信号的能量和检测到的下行链路信号的能量，选择性地将该组放大器参数应用于侧音放大器。 侧音控制器可以根据检测到的上行链路信号能量和检测到的下行链路信号能量的量化值对表格进行索引来选择特定的一组放大器参数。

公开(公告)号：US06708147B2

公开(公告)日：2004-03-16

申请号：US09796380

申请日：2001-02-28

申请人： Fisseha Mekuria ,  Joakim Persson

发明人： Fisseha Mekuria ,  Joakim Persson

IPC分类号： G10L1100

CPC分类号： G10L19/012

摘要： In a voice communication system having a transmitter and receiver on opposing sides of an interface, the transmitter is switched on to transmit speech components and is switched off during speech pauses. To provide comfort noise at the receiver, and thus avoid annoying effects caused by continual switching of the transmitter, a comfort noise generator disposed to produce comfort noise of an adjustable amplitude is located on the receiver side of the interface. A first subsystem responsive to operation of the transmitter provides a flag to the receiver to commence operation of the comfort noise generator, when the transmitter discontinues transmission in response to a speech pause. A second subsystem transmits a succession of amplitude parameters through the interface to selectively adjust the amplitude of the generator in corresponding relationship with a noise level at the transmitter.

摘要翻译： 在具有在接口的相对侧上的发射机和接收机的语音通信系统中，发射机被接通以传输语音分量，并且在语音暂停期间被关闭。 为了在接收机上提供舒适噪声，并且因此避免了由发射机的连续切换引起的麻烦的影响，设置成产生可调振幅的舒适噪声的舒适噪声发生器位于接口的接收机侧。 当发射机响应于语音暂停而停止发送时，响应于发射机的操作的第一子系统向接收机提供标志以开始舒适噪声发生器的操作。 第二子系统通过接口发送一系列幅度参数，以选择性地调整发生器的幅度与发射机处的噪声电平相对应的关系。

公开(公告)号：US08225679B2

公开(公告)日：2012-07-24

申请号：US12607819

申请日：2009-10-28

申请人： Joseph R. Flaherty ,  William E. Fortune, Jr. ,  Keith Prescott ,  Joakim Persson ,  Eric Anders Gustavsson

发明人： Joseph R. Flaherty ,  William E. Fortune, Jr. ,  Keith Prescott ,  Joakim Persson ,  Eric Anders Gustavsson

IPC分类号： B25B23/14

CPC分类号： B60R9/058

摘要： The present invention relates to a load carrier foot (1) and a torque indicator device (25, 34, 44, 532, 74) for use with various sports equipment accessory devices, preferably a load carrier foot, the torque indicator providing a signal alerting an operator that a desired torque has been reached, thereby avoiding over-tightening or under-tightening of the device.

摘要翻译： 本发明涉及一种用于与各种运动器材附件装置（优选载重承载脚）一起使用的扭矩指示器装置（25,34,44,532,74），所述扭矩指示器提供信号警报 已经达到期望扭矩的操作者，从而避免装置的过度拧紧或不紧固。

公开(公告)号：US08047412B2

公开(公告)日：2011-11-01

申请号：US10567449

申请日：2004-07-06

申请人： Arnaud Premartin ,  Olivier Veuillot ,  Hans Odin ,  Joakim Persson

发明人： Arnaud Premartin ,  Olivier Veuillot ,  Hans Odin ,  Joakim Persson

IPC分类号： B60P3/07 ,  B60R9/10

CPC分类号： B60R9/06 ,  B60R9/10 ,  Y10S224/924

摘要： A load carrier for coupling to a vehicle. The load carrier includes a loading frame and a supporting arch that extends substantially upwardly from and transversely to the loading frame. The supporting arch is divisible into first and second arch parts, each of which arch parts is pivotally coupled to the loading frame such that, when divided, each of the first and second arch parts is configured to be pivoted down to a storage position lying substantially level with the loading frame. The arch parts are configured to be interlocked to each other into an in-use position, in which the first and said second arch parts substantially alone form the supporting arch.

摘要翻译： 用于联接到车辆的负载载体。 负载载体包括装载框架和从装载框架大致向上延伸并且横向于从装载框架延伸的支撑拱顶。 支撑拱可以分成第一和第二拱形部分，每个拱形部分都枢转地联接到装载框架，使得当被分割时，第一和第二拱形部分中的每一个被构造成向下枢转到基本上位于的存储位置 水平与装载框架。 拱形部分构造成彼此互锁成为使用位置，其中第一和第二拱形件基本上单独形成支撑拱。

公开(公告)号：US20070055877A1

公开(公告)日：2007-03-08

申请号：US10554946

申请日：2004-04-06

申请人： Joakim Persson ,  Christian Gehrmann

发明人： Joakim Persson ,  Christian Gehrmann

IPC分类号： H04L9/00

CPC分类号： H04L63/0272 ,  H04L9/0844 ,  H04L9/0891 ,  H04L63/0442 ,  H04L63/061 ,  H04L63/065 ,  H04L63/0823 ,  H04L63/083 ,  H04L67/104 ,  H04L67/1044 ,  H04L67/1065 ,  H04L2209/80 ,  H04W12/003 ,  H04W76/10 ,  H04W92/18

摘要： Disclosed is a method of establishing a secured peer-to-peer communication between two communications devices, each communications device having stored a respective set of previously established security associations with other communications devices. The method comprises determining whether the two communications devices have a common security association in their respective sets of established security associations; if the devices have determined a common security association, protecting the communications link between the two communications device based on the determined common security association; otherwise establishing a new security association between the two communications devices, and protecting the communications link based on the new security association; and extending the sets of previously established security associations of the two communications devices to the corresponding other exchanging corresponding key data.

摘要翻译： 公开了一种在两个通信设备之间建立安全的对等通信的方法，每个通信设备已经存储了与其他通信设备的先前建立的安全关联的相应集合。 该方法包括确定两个通信设备在其各自的建立的安全关联集合中是否具有公共安全关联; 如果设备已经确定了公共安全关联，则基于所确定的公共安全关联来保护两个通信设备之间的通信链路; 否则在两个通信设备之间建立新的安全关联，并且基于新的安全关联来保护通信链路; 并且将两个通信设备的先前建立的安全关联的集合扩展到相应的其他交换对应的密钥数据。

公开(公告)号：US06988197B1

公开(公告)日：2006-01-17

申请号：US09632933

申请日：2000-08-04

申请人： Joakim Persson ,  Bernard Smeets ,  Tobias Melin

发明人： Joakim Persson ,  Bernard Smeets ,  Tobias Melin

IPC分类号： H04L9/00

CPC分类号： H04L9/3273 ,  H04L2209/80

摘要： In a communication system, an authentication ciphering offset (ACO) is generated as a function of one or more parameters, wherein at least one of the one or more parameters is derived from earlier-computed values of the ACO. This enables each device to avoid generating an ACO value that is out of synchronization with a counterpart ACO value generated in another communication device.

摘要翻译： 在通信系统中，作为一个或多个参数的函数产生认证加密偏移（ACO），其中所述一个或多个参数中的至少一个是从较早计算出的ACO值导出的。 这使得每个设备避免产生与另一通信设备中生成的对应ACO值不同步的ACO值。

公开(公告)号：US06914947B2

公开(公告)日：2005-07-05

申请号：US09795934

申请日：2001-02-28

申请人： Joakim Persson ,  Leif Wilhelmsson

发明人： Joakim Persson ,  Leif Wilhelmsson

IPC分类号： H04L1/00 ,  H04L7/00 ,  H04L7/04 ,  H04L27/06

CPC分类号： H04L1/0061 ,  H04L1/205 ,  H04L7/0083 ,  H04L7/048

摘要： A method for maintaining synchronization between a transmitter and a receiver is disclosed. The method offsets time drift which causes a degradation in the quality of communication between a transmitter and a receiver. The method comprises using a first sampling time to obtain a first sequence of hard decision symbols for decoding contents of a portion of a received packet, switching to a second sampling time upon degradation in a reliability of the symbols, and using the second sampling time to obtain a second sequence of hard decision symbols for decoding contents of a remaining portion of the received packet.

摘要翻译： 公开了一种用于维持发射机和接收机之间的同步的方法。 该方法抵消导致发射机和接收机之间通信质量下降的时间漂移​​。 该方法包括使用第一采样时间来获得用于解码接收分组的一部分的内容的硬判决符号的第一序列，在符号的可靠性劣化时切换到第二采样时间，并且使用第二采样时间 获得用于解码接收到的分组的剩余部分的内容的硬判决符号的第二序列。