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    Power management method for use in a wireless local area network (LAN)
    51.
    发明授权
    Power management method for use in a wireless local area network (LAN) 有权
    对于无线局域网功率控制方法

    公开(公告)号：EP0907262B1

    公开(公告)日：2005-08-03

    申请号：EP98307654.8

    申请日：1998-09-21

    申请人： Hewlett-Packard Company, A Delaware Corporation

    发明人： Romans, Christopher Gwyn

    IPC分类号： H04B7/005 ,  H04Q7/38 ,  H04L12/28

    CPC分类号： H04W52/288 ,  H04L41/00 ,  H04W52/0229 ,  H04W52/28 ,  H04W84/12 ,  Y02D70/142

    摘要： In a wireless network including a plurality of stations, one of said stations is a control station for transmitting a permission indication to the remaining stations of the network. The remaining ones of said stations have an active state and an inactive state during which the remaining stations do not transmit or receive messages. The remaining stations further have a first power mode in which they are fully in the active state and a second power mode in which they enter the active state only at predetermined times and remain in the active state under specified conditions and are otherwise in the inactive state. The remaining stations include a controller arranged for causing the remaining stations to enter the second power mode only in response to the permission indication of the control station. The control station includes a controller for managing communications to the remaining stations dependent on whether the remaining stations are in the first power mode or the second power mode.

    Write pass identifier
    58.
    发明公开
    Write pass identifier 审中-公开
    写通行证标识符

    公开(公告)号：EP0936618A3

    公开(公告)日：2005-04-13

    申请号：EP99300983.6

    申请日：1999-02-10

    申请人： Hewlett-Packard Company, A Delaware Corporation

    发明人： Bartlett, Paul Frederick

    IPC分类号： G11B27/30 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G06F3/06 ,  G11B23/28

    CPC分类号： G11B20/1866 ,  G11B20/1205 ,  G11B27/3027 ,  G11B2220/216

    摘要： A method of encoding data with a means to distinguish between new data and incompletely erased old data when restoring said data from a magnetic tape storage device comprises: arranging a byte stream of user data into a plurality of track blocks; adding to each track block a track block header containing a write pass identifier; as said data is written to tape, the write pass identifier of the data already on tape is read and the Write pass identifier of the data being written to tape is incremented.

    摘要翻译： 一种用于在从磁带存储设备恢复所述数据时区分新数据和未完全擦除的旧数据的方法来编码数据的方法包括：将用户数据的字节流布置到多个轨道块中; 向每个轨道块添加包含写入通过标识符的轨道块标头; 当所述数据被写入磁带时，已经在磁带上的数据的写入通过标识符被读取，并且写入到磁带的数据的写入通过标识符递增。