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    • 16. 发明申请
    • FIXED CELLULAR TERMINAL - WIRELESS LOOP SYSTEM
    • 固定式终端 - 无线环路系统
    • US20070135120A1
    • 2007-06-14
    • US11548667
    • 2006-10-11
    • Dennis KingMark RosenWojciech Lewalski
    • Dennis KingMark RosenWojciech Lewalski
    • H04Q7/20
    • H04W88/16H04W8/18H04W84/14H04W88/06
    • A device that provides a gateway between a public switching telephone network and a gateway device comprises a controller interface including telephony circuitry, power circuitry, and a master cellular phone circuit. The controller is connected to at least one public switching network. The controller interface further includes a plurality of cartridge slots connected to the telephony circuitry and the master cellular phone circuitry, wherein the telephony circuitry links the master cellular phone circuitry to the public switching telephone network. The device further includes a plurality of transceiver cartridges removeably connected to the cartridge slots of the controller interface. The transceiver cartridges are operably configured to wirelessly link the master cellular phone circuitry to the cellular networks. Additionally, the controller interface circuitry is operably configured to switch between land line telephone network and the plurality of cellular networks based on preset conditions.
    • 在公共交换电话网络和网关设备之间提供网关的设备包括包括电话电路,电源电路和主蜂窝电话电路的控制器接口。 控制器连接到至少一个公共交换网络。 控制器接口还包括连接到电话电路和主蜂窝电话电路的多个盒插槽,其中电话电路将主蜂窝电话电路链接到公共交换电话网络。 该设备还包括可移除地连接到控制器接口的盒槽的多个收发器盒。 收发器盒可操作地配置成将主蜂窝电话线路无线地链接到蜂窝网络。 另外,控制器接口电路可操作地配置为基于预设条件在陆地线电话网络和多个蜂窝网络之间切换。
    • 18. 发明授权
    • Signal coupler using low voltage filtering
    • 信号耦合器采用低电压滤波
    • US06418221B1
    • 2002-07-09
    • US09057953
    • 1998-04-09
    • Dane Roderick SnowMark Rosen
    • Dane Roderick SnowMark Rosen
    • H04M100
    • H04L27/0002H04M3/005H04M3/007
    • A signal coupler is provided which decreases the number of discreet elements required to provide low pass filtering for the plain old telephone service (POTS). The low pass filtering is shifted to areas of the signal coupler circuit which do not operate with the high battery voltage present on telephone lines The low voltage filtering reduces the need for components which are capable of operating in the high voltage environment and therefore reduces the space on the circuit board which is occupied by each of the signal couplers. In this way, the number of individual subscriber lines that a given circuit board can accommodate can be increased.
    • 提供一种信号耦合器,其减少为普通老式电话服务(POTS)提供低通滤波所需的离散元件的数量。 低通滤波被转移到信号耦合器电路的不在电话线上存在的高电池电压的区域。低电压滤波减少了对能够在高电压环境中工作的部件的需要,从而减少了空间 在每个信号耦合器占用的电路板上。 以这种方式,可以增加给定电路板可容纳的个体用户线路的数量。