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公开(公告)号：US06729929B1
公开(公告)日：2004-05-04
申请号：US09271596
申请日：1999-03-17
IPC分类号： H04Q720
摘要： A communications system extending over a cellular region and formed of a plurality of wireless cells. The communications system extends over a cellular region formed of a plurality of wireless cells. Each cell covers an area which includes a portion of the cellular region. Each particular cell includes a base station having a transmitter for transmitting a particular cell signal having parameters including a transmitting frequency and a transmitting power. The particular cell signal is transmitted to cover a portion of the cell region. Each of the base stations includes a parameter detector for detecting the other parameters of the other cell signals from the other cells in the cellular region. A parameter controller controls the particular parameters for the particular cell. The parameters for the particular cell are based upon the other parameters for the other cell signals so that the particular cell signal does not interfere with the other cell signals in the cellular region.
摘要翻译： 一种在蜂窝区域上延伸并由多个无线小区形成的通信系统。 通信系统在由多个无线小区形成的蜂窝区域上延伸。 每个细胞覆盖包括细胞区域的一部分的区域。 每个特定小区包括具有用于发送具有包括发射频率和发射功率的参数的特定信元信号的发射机的基站。 传输特定的信元信号以覆盖单元区域的一部分。 每个基站包括用于检测来自蜂窝区域中的其他小区的其它小区信号的其他参数的参数检测器。 参数控制器控制特定单元格的特定参数。 特定小区的参数基于其他小区信号的其他参数，使得特定小区信号不干扰蜂窝区域中的其他小区信号。
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公开(公告)号：US06542754B1
公开(公告)日：2003-04-01
申请号：US09310566
申请日：1999-05-12
IPC分类号： H04B701
CPC分类号： H04B7/269 , H04B7/2693 , H04W56/0015 , H04W56/0035
摘要： A communications system extends over a cellular region formed of a plurality of wireless cells where each cell covers a portion of the cellular region. Each cell has a base station clock unit that facilitates reliable and accurate synchronization with other clocks units in other cells using a master clock signal from a global positioning system (GPS) or other accurate frequency source. The clock unit in each cell includes a local clock providing a local clock signal for clocking the cell. A master clock source provides one or more master clock signals and a clock synchronizer receives the master clock signals and forms a synchronizing master clock signal for synchronizing the local clock signal. In one or more of the wireless cells of the communication system, the clock unit is a master clock unit which includes a clock distributor for distributing a distributed master clock signal to one or more other wireless cells having slave clock units.
摘要翻译： 通信系统在由多个无线小区形成的蜂窝区域上延伸，其中每个小区覆盖蜂窝区域的一部分。 每个单元具有基站时钟单元，其使用来自全球定位系统（GPS）或其他精确频率源的主时钟信号来促进与其他单元中的其它时钟单元的可靠和准确的同步。 每个单元中的时钟单元包括本地时钟，提供用于对单元进行时钟的本地时钟信号。 主时钟源提供一个或多个主时钟信号，并且时钟同步器接收主时钟信号并且形成用于同步本地时钟信号的同步主时钟信号。 在通信系统的一个或多个无线小区中，时钟单元是主时钟单元，其包括用于将分布式主时钟信号分配给具有从时钟单元的一个或多个其他无线小区的时钟分配器。
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公开(公告)号：US3984032A
公开(公告)日：1976-10-05
申请号：US466519
申请日：1974-05-02
摘要： A liquid fuel dispensing system having a plurality of dispensing pumps each generating electric pulses according to the volume of fuel dispensed and a central control where payment is made. A data transmission link couples each pump to the central control and each pump has a pulse store which accumulates pulses generated by the pump during a dispensing operation. A multiplexing unit at the central control samples the outputs from the pulse stores which are updated at each sampling.
摘要翻译： 一种液体燃料分配系统，具有多个分配泵，每个分配泵根据所分配的燃料的体积和支付的中央控制产生电脉冲。 数据传输链路将每个泵耦合到中央控制器，并且每个泵具有脉冲存储器，其在分配操作期间累积由泵产生的脉冲。 中央控制器处的复用单元对每个采样时更新的脉冲存储器的输出进行采样。
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公开(公告)号：US4067486A
公开(公告)日：1978-01-10
申请号：US614041
申请日：1975-09-17
CPC分类号： B67D7/228 , G07F11/002 , G07F15/00 , G07F5/18
摘要： A liquid fuel dispensing system having a plurality of dispensing pumps each generating electric pulses according to the volume of fuel dispensed and a central control where payment is made. A data transmission link couples each pump to the central control and each pump has a pulse store which accumulates pulses generated by the pump during a dispensing operation. A sampling mechanism at the central control samples the outputs from the pulse stores which are updated at each sampling. First and second storage elements are provided to store information at the central control relating to previous pump transaction whereby such pump can be cleared for use by second customer before first customer has paid.
摘要翻译： 一种液体燃料分配系统，具有多个分配泵，每个分配泵根据所分配的燃料的体积和支付的中央控制产生电脉冲。 数据传输链路将每个泵耦合到中央控制器，并且每个泵具有脉冲存储器，其在分配操作期间累积由泵产生的脉冲。 中央控制器的采样机制对每个采样时更新的脉冲存储器的输出进行采样。 提供第一和第二存储元件以在中央控制器处存储与之前的泵交易有关的信息，由此在第一客户已经支付之前这样的泵可以被第二客户清零供其使用。
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