公开(公告)号：US4961221A

公开(公告)日：1990-10-02

申请号：US449218

申请日：1989-12-12

Applicant: Jacques Abiven

Inventor： Jacques Abiven

IPC: H04B10/20 ,  G09C1/00 ,  H04B10/207 ,  H04L1/00 ,  H04L9/08 ,  H04L9/10 ,  H04L9/12 ,  H04L9/18 ,  H04L9/36

CPC classification number: H04B10/272 ,  H04L9/065 ,  H04L2001/0093 ,  H04L2209/125 ,  H04L2209/34

Abstract: An information encryption method particularly intended for a communication system in which bidirectional multiplexed communications of the point-to-multipoint type are derived between a switching exchange and plural terminal stations. The switching exchange transmits first multiplexed words respectively destined for the terminal stations. The terminal stations supply second words which are multiplexed and transmitted towards the switching exchange. In the switching exchange, informations concerning transmission errors detected in the second words are derived and transmitted towards the terminal stations, and the first words are encrypted as a function of second words previously received free of transmission error in the switching exchange. In each of the terminal stations, the informations concerning the transmission errors are detected, and the second words transmitted from the terminal station and received free of transmission error by the switching exchange are memorized. The first words received are decrypted in the terminal station as a function of transmission errors and the memorized second words.

Abstract translation: 特别是用于在切换交换机与多个终端站之间导出点对多点类型的双向复用通信的通信系统的信息加密方法。 交换交换机发送分别用于终端站的第一复用字。 终端站提供多路复用并传送给切换交换机的第二字。 在切换交换中，导出关于在第二个字中检测到的传输错误的信息并向终端发送，并且第一个字作为在交换交换中先前没有发送传输错误的第二个字的函数进行加密。 在每个终端站中，检测到关于传输错误的信息，并记录从终端站发送的并且由切换交换机接收到的传输错误的第二个字。 接收到的第一个字作为传输错误和记忆的第二个字的功能在终端站中解密。

公开(公告)号：US5526346A

公开(公告)日：1996-06-11

申请号：US304230

申请日：1994-09-12

Applicant: Jacques Abiven

Inventor： Jacques Abiven

IPC: H04B10/20 ,  H04J3/16 ,  H04J3/22 ,  H04J14/08 ,  H04L12/56 ,  H04J14/02

CPC classification number: H04J3/22 ,  H04J3/1694 ,  H04J14/08 ,  H04L2012/561 ,  H04L2012/5672

Abstract: A tree-structured star telecommunication network of the wavelength division multiplex transmission type includes multirate periodic downstream and upstream frames transmitted at different wavelengths in full-duplex mode, thereby to connect a central terminal with a plurality of user terminals. Half-duplex transmission for each low bit rate terminal equipment uses a half-frame period shift with respect to the frame period between upstream frame data sectors and downstream frame data sectors. Data derive by the high rate equipment is transmitted in upstream and downstream sectors not occupied by low bit rate data.

Abstract translation: 波分复用传输类型的树状星形电信网络包括以全双工模式以不同波长发送的多速率周期性下行和上行帧，从而将中央终端与多个用户终端连接起来。 对于每个低比特率终端设备的半双工传输使用相对于上行帧数据扇区和下游帧数据扇区之间的帧周期的半帧周期移位。 由高速率设备导出的数据在不被低比特率数据占用的上游和下游扇区中传输。

公开(公告)号：US5272694A

公开(公告)日：1993-12-21

申请号：US854899

申请日：1992-03-20

Applicant: Fabrice Bourgart ,  Jacques Abiven

Inventor： Fabrice Bourgart ,  Jacques Abiven

IPC: H04L5/22 ,  H04B10/272 ,  H04J3/06 ,  H04L7/00 ,  H04L7/08 ,  H04L25/02 ,  H04B3/20

CPC classification number: H04J3/0602 ,  H04B10/272 ,  H04J3/0682

Abstract: The synchronization of a terminal station in a half-duplex tree-structured communication network consists in counting clock pulses in a central station. The pulses are counted between the emission of a forward frame including a synchronization word emission order that is intended for the terminal station, and the reception of the synchronization word emitted from the terminal station in response to the forward frame. As a function of the pulse count is computed a delay depending on the propagation time between the two stations so as to data sectors emitted by the terminal stations do not overlaps and form a backward frame whatever the different distances between the terminal stations and the central station. According to the invention, the counted pulses are pulses of a central clock signal phase-shifted to within a bit time fraction of the received words. The time intervals attributed to the sectors are thus determined more accurately. The central clock signal depends on the operating rate of the terminal station, and the network can then carry multirate frames. The invention also remedies to variations of propagation time between the stations caused by thermal drifts by modifying clock signals to regenerate sectors in the central station.

Abstract translation: 半双工树状结构化通信网络中的终端站的同步在于计数中心站中的时钟脉冲。 在包括用于终端的同步字发射次序的正向帧的发射与响应于前向帧的从终端发射的同步字的接收之间进行脉冲计数。 根据脉冲计数的函数计算取决于两个站之间的传播时间的延迟，使得终端站发射的数据扇区不重叠并形成后向帧，而不管终端站和中心站之间的距离如何 。 根据本发明，计数脉冲是相移到接收字的位时间分数内的中心时钟信号的脉冲。 因此，更精确地确定归因于扇区的时间间隔。 中央时钟信号取决于终端的工作速率，网络可以承载多速率帧。 本发明还通过修改时钟信号来重新产生中心站的扇区来弥补由热漂移引起的站间传播时间的变化。

公开(公告)号：US4803416A

公开(公告)日：1989-02-07

申请号：US898392

申请日：1986-08-20

Applicant: Jacques Abiven ,  Eric Audrain

Inventor： Jacques Abiven ,  Eric Audrain

IPC: H02J7/00 ,  G01R31/36 ,  H02J7/04 ,  G01R11/66

CPC classification number: G01R19/16542

Abstract: A control device for a storage battery consists of a charge regulating loop including a circuit for supplying clock pulses having a variable frequency proportional to a battery charge and discharge current, a circuit for estimating an instantaneous capacity of the battery depending on a clock pulse up-down count, and a regulating circuit for recharging the battery from a mains or supply voltage as soon as the instantaneous capacity is equal to a first capacity substantially less than a maximum capacity of the battery. According to the invention, the frequency of the clock pulses depends also on at least one of the parameters relating to an energy efficiency of the battery and to a self-discharge current of the battery, so that these parameters are involved in estimating the instantaneous capacity. Also, the device gives warning, through an alarm, that the battery voltage is considerably more than a discharge threshold which, when reached, disconnects the battery from a load circuit. The end of battery life determined depending on charge and discharge cycles and battery ageing is also signaled. The voltage across a resistor connected in series with the battery is amplified by an amplifier having two input terminals connected with the resistor terminals, respectively, via first resistors and first contacts which are closed in response to a detected charging rate, and through second resistors and second contacts which are closed in response to a detected discharging rate.

Abstract translation: 一种用于蓄电池的控制装置包括一个充电调节回路，该充电调节回路包括用于提供具有与电池充电和放电电流成比例的可变频率的时钟脉冲的电路，用于根据时钟脉冲上升估计电池的瞬时容量的电路， 一个调节电路，用于在瞬时容量等于基本上小于电池的最大容量的第一容量时，从电源或电源电压对电池再充电。 根据本发明，时钟脉冲的频率还取决于与电池的能量效率和电池的自放电电流有关的至少一个参数，使得这些参数涉及估计瞬时容量 。 此外，设备通过报警发出警告，指示电池电压远远高于放电阈值，当达到时，电池电压将从负载电路断开。 电池寿命的结束也取决于充电和放电循环以及电池老化情况。 与电池串联的电阻器两端的电压分别由具有与电阻器端子连接的两个输入端子的放大器放大，该第一电阻器和第一触点响应于检测到的充电速率而被封闭，并且通过第二电阻器和 响应于检测到的放电速率而闭合的第二触点。

公开(公告)号：US5363370A

公开(公告)日：1994-11-08

申请号：US181976

申请日：1994-01-18

Applicant: Jacques Abiven

Inventor： Jacques Abiven

IPC: H04J3/16 ,  H04J3/22 ,  H04L5/14

CPC classification number: H04J3/22 ,  H04J3/1694 ,  H04L5/1484

Abstract: The method is intended for implementation in a central station connected to digital channels having different primary rates and servicing terminal stations matched at different on-line rates respectively higher than the primary rates via a one single duplex or half-duplex communications network. The network carries a multirate frame divided into sectors having on-line rates corresponding to terminal stations communicating with the main station.

Abstract translation: 该方法旨在在连接到具有不同主要速率的数字信道和服务终端站的中心站中实现，所述终端站通过单个双工或半双工通信网络分别高于主要速率的不同在线速率进行匹配。 该网络承载分为具有对应于与主站通信的终端站的在线速率的扇区的多速率帧。

公开(公告)号：US5046074A

公开(公告)日：1991-09-03

申请号：US394322

申请日：1989-08-16

Applicant: Jacques Abiven ,  Gilles Ramel

Inventor： Jacques Abiven ,  Gilles Ramel

IPC: H04L5/16 ,  H04L7/00 ,  H04L7/04

CPC classification number: H04L7/041

Abstract: The invention enables extremely quick and reliable recovery of the synchronization of a communication signal transmitted in a half-duplex link. Such a communication signal comprises first time intervals including useful data, and second time intervals devoid of useful data and in a given logic state. At the beginning of each of the first time intervals is included a digital synchronization pattern which is then considered as associated with the second time intervals to form synchronization words of great length. The synchronization of the communication signal is recovered by detecting the synchronization words of great length in the communication signal.

Abstract translation: 本发明能够非常快速和可靠地恢复在半双工链路中发送的通信信号的同步。 这样的通信信号包括包括有用数据的第一时间间隔和没有有用数据和处于给定逻辑状态的第二时间间隔。 在每个第一时间间隔的开始处包括数字同步模式，其随后被认为与第二时间间隔相关联以形成具有很大长度的同步字。 通过检测通信信号中长度很大的同步字来恢复通信信号的同步。

公开(公告)号：US5043976A

公开(公告)日：1991-08-27

申请号：US573979

申请日：1990-08-28

Applicant: Jacques Abiven ,  Alain Rebours

Inventor： Jacques Abiven ,  Alain Rebours

IPC: H04B10/00 ,  H04B10/02 ,  H04B10/08 ,  H04B10/24

CPC classification number: H04B10/035 ,  H04B10/07 ,  H04B10/0771 ,  H04B10/2503

Abstract: A loop-back device is particularly designed to fit line terminals in half-duplex optical transmission systems thereby facilitating fault location in these transmission systems. An optical fiber coupler having a high crosstalk generates an echo in a reception channel of the terminal, from a test signal transmitted in a transmission channel of the terminal, to an optical transmission medium. Means are provided for cancelling transmission of the echo in the reception channel when the loop-back is de-activated, i.e. when a data signal is carried in the transmission medium, and for amplifying and regenerating said echo when the loop-back is activated, i.e. when said test signal is transmitted. A memory is used for delaying the echo and for transmitting it to a receiving circuit in the terminal during a signal reception period of the half-duplex transmission.

Abstract translation: 环回设备特别设计用于在半双工光传输系统中安装线路终端，从而有助于这些传输系统中的故障定位。 具有高串扰的光纤耦合器从在终端的传输信道中发送的测试信号到终端的接收信道中产生回波到光传输介质。 提供了当回送被去激活时，即当数据信号被传送到传输介质中时，用于消除接收信道中的回波传输的装置，并且当环回被激活时放大和再生所述回波， 即当所述测试信号被发送时。 在半双工传输的信号接收周期期间，存储器用于延迟回波并将其发送到终端中的接收电路。