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168 条记录 (耗时 0.021 秒)

    Telephone transaction system
    91.
    发明授权
    Telephone transaction system 失效
    电话交易系统

    公开(公告)号：US3652795A

    公开(公告)日：1972-03-28

    申请号：US3652795D

    申请日：1970-11-25

    申请人： ELECTROSPACE CORP

    发明人： WOLF ARNOLD M ,  RICHTER JOHN G

    IPC分类号： G06C27/00 ,  G06Q20/00 ,  G07F7/08 ,  H04L27/30 ,  H04M11/06

    CPC分类号： G07F7/08 ,  G06C27/00 ,  G06Q20/00 ,  G06Q20/10 ,  G06Q20/108 ,  G06Q20/14 ,  G06Q20/4037 ,  H04L27/30

    摘要： A system is described for buying materials or services by transferring funds in a bank from a buyer''s deposit account to a seller''s account. The transfer of funds is accomplished by means of a ''''touch-tone'''' telephone receiving set equipped with a first decoding and printing means. A computer at the bank receives coded signals from the telephone set and, after decoding the signals, records the transaction at that location. Each purchaser is provided with a secret purchaser number on a telephone operating card and the entire operation is performed in the presence of the purchaser and a representative of the seller or store.

    摘要翻译： 描述了通过将银行中的资金从买方的存款帐户转移到卖方的账户来购买资料或服务的系统。 资金转移通过配备有第一解码和打印装置的“触摸式”电话接收装置来实现。 银行的计算机接收来自电话机的编码信号，在解码信号之后，记录该位置的交易。 每个购买者在电话操作卡上提供秘密购买者号码，并且在购买者和卖方或商店的代表的情况下执行整个操作。

    Telegraphic transmission system
    92.
    发明授权
    Telegraphic transmission system 失效
    电视传输系统

    公开(公告)号：US3644670A

    公开(公告)日：1972-02-22

    申请号：US3644670D

    申请日：1970-01-29

    申请人： ACEC

    发明人： DESSY LUCIEN

    IPC分类号： H04L1/00 ,  H04L27/30 ,  H04L17/08

    CPC分类号： H04L27/30 ,  H04L1/0045 ,  H04L1/0063

    摘要： A telegraphic transmission system for the transmission of series of bits of the same number in which each series of bits to be transmitted is divided into two groups. The transmitter of the system comprises coding devices assigning to each even combination of bits of the first group of each series of bits a frequency chosen in a first group of frequencies for transmitting such frequency during a first moment, and assigning to each even combination of bits of the second group of each series of bits a frequency chosen in a second group of frequencies for transmitting such frequency during a second moment following the first moment and of the same duration. The coding devices assign to each odd combination of bits of the first group of each series of bits a frequency chosen in the second group of frequencies for transmitting such frequency during the first moment, and assign to each odd combination of bits of the second group of each series of bits a frequency chosen in the first group of frequencies for transmitting such frequency during the second moment. The receiver comprises a switching device operated by a pilot clock at the rate of the moments of transmission, two identical frequency selectors to which the switching device alternatively applies the signals received by a detector associated with each selector, and a decoding device connected to both selectors for regrouping the two groups of the series of bits.

    Power line communication system
    99.
    发明授权
    Power line communication system 有权
    电力线通信系统

    公开(公告)号：US09294148B1

    公开(公告)日：2016-03-22

    申请号：US14845858

    申请日：2015-09-04

    申请人： LED Driven Holding B.V.

    发明人： Dolf van Casteren ,  Mark Gröninger ,  Menno Kardolus

    IPC分类号： H04B3/54 ,  H04B1/04 ,  H04B1/16

    CPC分类号： H04B3/542 ,  H02M1/15 ,  H02M3/157 ,  H02M3/285 ,  H02M3/33515 ,  H02M3/337 ,  H02M2001/0058 ,  H02M2003/1586 ,  H04B1/04 ,  H04B1/16 ,  H04B3/548 ,  H04B2203/5412 ,  H04B2203/5445 ,  H04B2203/547 ,  H04L25/0286 ,  H04L27/04 ,  H04L27/30 ,  Y02B70/1491

    摘要： A power supply circuit includes a number N, N≧2, of parallel connected, cyclically switched electronic converters having outputs connected to a common output terminal; and a controller providing switching pulse signals switching the converters with a switching frequency that is the same for all converters; load circuits connected to the output terminal; a PLC transmitter modulating an output current from the output terminal; and a PLC receiver in each load circuit, the controller switching the converters with interleaved switching pulse signals; the PLC transmitter modulating the output current by switching the controller between at least two modes of operation that differ in phase relations and/or pulse shapes of the switching pulse signals, changing a ripple frequency spectrum of the output current such that a suppression amount of a predetermined frequency component is changed depending upon the mode of operation; and the PLC receiver detects the predetermined frequency component.

    摘要翻译： 并联连接的循环型电子转换器的数量为N，N≥2的电源电路，其具有连接到公共输出端子的输出; 以及控制器，其向所有转换器提供对转换器的开关频率相同的开关脉冲信号; 负载电路连接到输出端子; PLC发射机调制来自输出端的输出电流; 和每个负载电路中的PLC接收器，控制器用交错的开关脉冲信号切换转换器; 所述PLC发射机通过在所述至少两种操作模式之间切换所述控制器来调制所述输出电流，所述至少两种工作模式在所述开关脉冲信号的相位关系和/或脉冲形状上不同，从而改变所述输出电流的抑制量 预定频率分量根据操作模式而改变; 并且PLC接收器检测预定频率分量。

    DEVICE AND METHOD FOR ACCESS PROBE ENHANCEMENTS
    100.
    发明申请
    DEVICE AND METHOD FOR ACCESS PROBE ENHANCEMENTS 有权
    用于访问探测增强的设备和方法

    公开(公告)号：US20130242865A1

    公开(公告)日：2013-09-19

    申请号：US13831858

    申请日：2013-03-15

    申请人： VIA TELECOM, INC.

    发明人： Shu Wang ,  Hong-Kui Yang

    IPC分类号： H04W74/00

    CPC分类号： H04W74/002 ,  H04B7/216 ,  H04J3/16 ,  H04L27/30 ,  H04W4/70 ,  H04W52/367 ,  H04W52/50 ,  H04W74/08

    摘要： Methods and wireless communication devices for access procedure enhancement are provided. The wireless communication device for access procedure enhancement includes a transceiver module and a communication protocol module. The transceiver module performs wireless transmissions and receptions. The communication protocol module receives a page message from a base station via the transceiver module, transmits at least one access probe via the transceiver module, and terminates the transmission of the rest of an access probe payload of the at least one access probe according to a termination criterion. Moreover, the access probe is transmitted using a transmission power which is lower than a first threshold, and the access probe is transmitted at a data rate lower than a second threshold.

    摘要翻译： 提供了用于访问过程增强的方法和无线通信设备。 用于访问过程增强的无线通信设备包括收发器模块和通信协议模块。 收发模块执行无线传输和接收。 所述通信协议模块经由所述收发器模块从基站接收寻呼消息，经由所述收发器模块发送至少一个接入探测器，并且终止所述至少一个接入探针的接入探测器有效载荷的其余部分根据 终止标准。 此外，使用低于第一阈值的发送功率来发送接入探测，并且以低于第二阈值的数据速率发送接入探测。