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    • 3. 发明授权
    • Signal processor and communication device
    • 信号处理器和通信设备
    • US08605756B2
    • 2013-12-10
    • US12769143
    • 2010-04-28
    • Akira ShimamuraKoichi MitaTakashi AraiHideshi FujishimaAkira Endo
    • Akira ShimamuraKoichi MitaTakashi AraiHideshi FujishimaAkira Endo
    • H04J3/06
    • H04J3/06H04L12/40006H04L12/40032H04L2012/40241
    • A signal processor includes a period detection section which detects that a period is currently used for communication of a frame; a pattern detection section which detects, from the received signal, a first signal pattern by which the end of communication of the frame is recognized; and an output processing section which outputs the received signal to a controller, configured to instruct, upon detection of the first signal pattern in the period being currently used for communication of a frame, the controller to halt startup of communication action of the next frame, until the period being currently used for communication of a frame comes to the end, to thereby reduce an event such that frames are transmitted from a plurality of communication devices simultaneously, and to thereby allow the communication action for the next frame to proceed correctly.
    • 信号处理器包括周期检测部分,其检测当前用于帧的通信的周期; 模式检测部,其从所接收的信号检测识别所述帧的通信结束的第一信号模式; 以及输出处理部,其将接收到的信号输出到控制器,被配置为在当前用于帧的通信的时段中检测到第一信号模式时指示,控​​制器停止启动下一帧的通信动作, 直到当前用于帧的通信的时间段结束为止,从而减少了从多个通信设备同时发送帧的事件,从而允许下一帧的通信动作正确地进行。
    • 10. 发明授权
    • Wireless LAN communication system, wireless LAN connection method, and wireless LAN terminal apparatus
    • 无线LAN通信系统,无线LAN连接方法以及无线LAN终端装置
    • US07580397B2
    • 2009-08-25
    • US11156733
    • 2005-06-21
    • Takashi AraiHitoshi YamazakiMasashi Itou
    • Takashi AraiHitoshi YamazakiMasashi Itou
    • H04W4/00
    • H04W48/20H04W52/0245H04W84/12Y02D70/142
    • An object of the invention is to reduce the power consumption at the time of an automatic homing operation performed between a base station apparatus and a wireless LAN terminal apparatus. When an automatic homing operation is performed in which a scanning operation is repeated for searching an AP as a connection destination, the wireless LAN terminal apparatus 10 does not leave unchanged a scan pause time period which is a period of time between the previous scanning operation to the next scanning operation, but lengthens it as the number of scanning operations increases. More specifically, each time the scanning operation is repeated predetermined number n times, the wireless LAN terminal apparatus extends the scan pause time period by a given incremental value. The wireless LAN terminal apparatus has an upper limit value of the scan pause time period preliminarily set therein. Thus the scan pause time period is made not to exceed the upper limit value.
    • 本发明的目的是降低在基​​站装置与无线LAN终端装置之间执行的自动归位操作时的功耗。 当进行扫描操作被重复搜索作为连接目的地的AP的自动归位操作时,无线LAN终端装置10不会在扫描暂停时间段之前保持不变,扫描暂停时间周期是在先前的扫描操作到 下一次扫描操作,但随着扫描操作次数的增加而延长。 更具体地,无线LAN终端装置每扫描一次重复预定次数n次,将扫描暂停时间段延长给定的增量值。 无线LAN终端装置具有预先设定的扫描暂停时间的上限值。 因此,使扫描暂停时间段不超过上限值。