Remote wireless unit having reduced power operating mode for a discrete multitone spread spectrum communications system
    1.
    发明授权
    Remote wireless unit having reduced power operating mode for a discrete multitone spread spectrum communications system 失效
    具有降低的功率操作模式的远程无线单元,用于离散多音扩频通信系统

    公开(公告)号:US06347236B1

    公开(公告)日:2002-02-12

    申请号:US08803835

    申请日:1997-02-24

    IPC分类号: H04B138

    摘要: A remote unit for a personal wireless area network includes a receiver, an AC power supply, a battery-backup power supply and a controller. The battery-backup becomes operative when the AC power supply fails and supplied power to the receiver. The controller detects when the AC power supply fails and controls the receiver and the battery-backup power supply by invoking a sleep mode of operation. The sleep mode of operation is periodically interrupted by the controller controlling the receiver and the battery-backup power supply to enter a standby mode of operation in which the receiver scans for a CONNECT message from a base station indicating an incoming call. The controller coordinates the sleep mode and the standby mode of operations based on a frame count that is generated from an identification number of the remote unit. A highly bandwidth-efficient communications method is employed in the base station to enable it to coordinate communication with the remote unit when it changes from the sleep mode to the standby mode.

    摘要翻译: 用于个人无线区域网络的远程单元包括接收器,AC电源,电池备用电源和控制器。 当交流电源出现故障并为接收机供电时,电池备份就会起作用。 控制器检测交流电源何时发生故障,并通过调用休眠模式来控制接收机和电池备用电源。 睡眠操作模式由控制接收机的控制器和电池备用电源定期中断,以进入待机操作模式,其中接收机从基站扫描指示呼入呼叫的CONNECT消息。 控制器基于从远程单元的标识号生成的帧计数来协调睡眠模式和待机操作模式。 在基站中采用高带宽效率的通信方法,使得它能够在远程单元从睡眠模式改变为待机模式时协调与远程单元的通信。

    Remote wireless unit having reduced power operating mode
    2.
    发明授权
    Remote wireless unit having reduced power operating mode 失效
    具有降低功率运行模式的远程无线单元

    公开(公告)号:US6047200A

    公开(公告)日:2000-04-04

    申请号:US222895

    申请日:1998-12-30

    摘要: A remote unit for a personal wireless area network includes a receiver, an AC power supply, a battery-backup power supply and a controller. The battery-backup becomes operative when the AC power supply fails and supplied power to the receiver. The controller detects when the AC power supply fails and controls the receiver and the battery-backup power supply by invoking a sleep mode of operation. The sleep mode of operation is periodically interrupted by the controller controlling the receiver and the battery-backup power supply to enter a standby mode of operation in which the receiver scans for a CONNECT message from a base station indicating an incoming call. The controller coordinates the sleep mode and the standby mode of operations based on a frame count that is generated from an identification number of the remote unit. A highly bandwidth-efficient communications method is employed in the base station to enable it to coordinate communication with the remote unit when it changes from the sleep mode to the standby mode.

    摘要翻译: 用于个人无线区域网络的远程单元包括接收器,AC电源,电池备用电源和控制器。 当交流电源出现故障并为接收机供电时,电池备份就会起作用。 控制器检测交流电源何时发生故障,并通过调用休眠模式来控制接收机和电池备用电源。 睡眠操作模式由控制接收机的控制器和电池备用电源定期中断,以进入待机操作模式,其中接收机从基站扫描指示呼入呼叫的CONNECT消息。 控制器基于从远程单元的标识号生成的帧计数来协调睡眠模式和待机操作模式。 在基站中采用高带宽效率的通信方法,使得它能够在远程单元从睡眠模式改变为待机模式时协调与远程单元的通信。

    Adsorbents for rapid cycle pressure swing adsorption processes
    7.
    发明申请
    Adsorbents for rapid cycle pressure swing adsorption processes 有权
    用于快速循环变压吸附过程的吸附剂

    公开(公告)号:US20060236862A1

    公开(公告)日:2006-10-26

    申请号:US11114298

    申请日:2005-04-26

    IPC分类号: B01D53/02

    摘要: Method for the separation of a gas mixture comprising providing a PSA system with at least one adsorber vessel containing adsorbent material that is selective for the adsorption of carbon monoxide and nitrogen, passing a feed gas mixture containing at least hydrogen and carbon monoxide and optionally containing nitrogen through the adsorbent material in a feed step and withdrawing a purified hydrogen product from the adsorber vessel, wherein the feed step has a duration or feed time period of about 30 seconds or less. The adsorbent material is characterized by any of (1) a Henry's law constant for carbon monoxide between about 2.5 and about 5.5 (mmole/g)/atm; (2) a carbon monoxide heat of adsorption between about 6.0 and about 7.5 kcal/gmole; (3) a Henry's law constant for nitrogen greater than about 1.5 (mmole/g)/atm; and (4) a selectivity of carbon monoxide to nitrogen between about 5.0 and about 8.0.

    摘要翻译: 一种分离气体混合物的方法,其包括向PSA系统提供至少一个吸附剂容器,所述吸附器容器具有选择性地吸附一氧化碳和氮气的吸附材料,通过至少含有一氧化碳和一氧化碳并且任选地含有氮的进料气体混合物 通过进料步骤中的吸附剂材料和从吸附器容器中抽出纯化的氢产物,其中进料步骤具有约30秒或更短的持续时间或进料时间。 吸附剂材料的特征在于(1)一氧化碳在约2.5和约5.5(mmole / g)/ atm之间的亨利定律常数; (2)一氧化碳吸附热量在约6.0-约7.5千卡/克摩尔之间; (3)用于大于约1.5(mmole / g)/ atm的氮的亨利定律; 和(4)一氧化碳对氮的选择性在约5.0和约8.0之间。