公开(公告)号：US06233126B1

公开(公告)日：2001-05-15

申请号：US08698193

申请日：1996-08-15

申请人： Pieter J. Van der Zaag ,  Jacobus J. M. Ruigrok ,  Harald Van Kampen

发明人： Pieter J. Van der Zaag ,  Jacobus J. M. Ruigrok ,  Harald Van Kampen

IPC分类号： G11B539

CPC分类号： G11B5/3922

摘要： Thin film magnetic head has magnetoresistive element (23) and flux-guiding elements (117a,117b) of a material having a relatively high magnetic permeability, and an intermediate layer between the magnetoresistive element and the flux-guiding elements, the intermediate layer (21) being electrically insulating, and having a relatively low magnetic permeability of between 1.1 and 25. The low permeability intermediate layer increases the magnetic flux between the magnetoresistive element and the flux-guiding elements, and thereby improves the efficiency of the magnetic head.

摘要翻译： 薄膜磁头具有磁阻元件（23）和具有较高磁导率的材料的磁通导向元件（117a，117b）和磁阻元件与磁通引导元件之间的中间层，中间层（21 ）电绝缘，并且具有介于1.1和25之间的相对低的磁导率。低磁导率中间层增加了磁阻元件和导磁元件之间的磁通量，从而提高了磁头的效率。

公开(公告)号：US07515913B2

公开(公告)日：2009-04-07

申请号：US10999162

申请日：2004-11-29

申请人： Gerrit Willem Hiddink ,  Amiram Levi ,  Harald Van Kampen ,  Martinus Cornelis Wezelenburg

发明人： Gerrit Willem Hiddink ,  Amiram Levi ,  Harald Van Kampen ,  Martinus Cornelis Wezelenburg

IPC分类号： H04Q7/20

CPC分类号： H04W36/30 ,  H04B17/382 ,  H04W72/08 ,  H04W84/18

摘要： Methods and apparatus are disclosed for automatically detecting when an operating channel needs to be changed in a wireless communication system. An alternate channel is selected by obtaining information about a plurality of available channels; assigning a score to each available channel; and selecting an alternate channel from the available channels based on the assigned score. The state of the selected alternate channel and the current channel are compared. A change to the selected alternate channel is initiated when one or more predefined criteria are satisfied.

摘要翻译： 公开了用于在无线通信系统中自动检测何时需要改变操作信道的方法和装置。 通过获得关于多个可用信道的信息来选择替代频道; 为每个可用频道分配乐谱; 并根据分配的分数从可用频道中选择一个备用频道。 比较所选替代频道和当前频道的状态。 当满足一个或多个预定义的标准时，启动对所选替代频道的改变。

公开(公告)号：US20080139212A1

公开(公告)日：2008-06-12

申请号：US11567744

申请日：2006-12-07

申请人： Xiang Chen ,  Aart Jan Geurtsen ,  Gerrit W. Hiddink ,  Peijuan Liu ,  Ravindra P. Moorut ,  Harald Van Kampen

发明人： Xiang Chen ,  Aart Jan Geurtsen ,  Gerrit W. Hiddink ,  Peijuan Liu ,  Ravindra P. Moorut ,  Harald Van Kampen

IPC分类号： H04L27/28 ,  H04Q7/20

CPC分类号： H04W72/1215 ,  H04W88/06

摘要： The various embodiments provide a mobile station having at least a first and a second radio transceivers wherein a medium access control (MAC) layer framework coordinates the transmission and reception of the at least a first and a second transceiver systems. In addition, the various embodiments employ asynchronous connectionless links (ACL) for voice traffic on a Bluetooth™ link rather than SCO links. A central scheduler (305) interfaces with a first MAC layer (311) and a second MAC layer (321). By interacting with the MAC layers of both systems, the central scheduler (305) collects traffic information from both PHY layers at the buffer (309), including transmission/reception timing, and Quality of Service (QoS) requirements for voice traffic. Based upon the collected information the central scheduler (305) will schedule transmissions by both systems in a non-time-overlapping manner so as to avoid radio frequency interference.

摘要翻译： 各种实施例提供具有至少第一和第二无线电收发器的移动台，其中介质访问控制（MAC）层框架协调至少第一和第二收发器系统的发送和接收。 此外，各种实施例在蓝牙TM链路而不是SCO链路上使用用于语音业务的异步无连接链路（ACL）。 中央调度器（305）与第一MAC层（311）和第二MAC层（321）接口。 通过与两个系统的MAC层交互，中央调度器（305）在缓冲器（309）处收集来自两个PHY层的业务信息，包括发送/接收定时和对语音业务的服务质量（QoS）要求。 基于收集的信息，中央调度器（305）将以非时间重叠的方式调度两个系统的传输，以避免射频干扰。