INTERLOCK CIRCUIT FOR PREVENTING CORRUPTION OF TELEPHONE LINE SIGNALS
    61.
    发明申请
    INTERLOCK CIRCUIT FOR PREVENTING CORRUPTION OF TELEPHONE LINE SIGNALS 审中-公开
    用于防止电话线信号损坏的互锁电路

    公开(公告)号:WO1990013959A1

    公开(公告)日:1990-11-15

    申请号:PCT/US1990000602

    申请日:1990-01-31

    CPC classification number: H04M3/30 H04M1/24 H04Q1/44 H04Q1/442

    Abstract: Corruption of communication signals on a telephone line (32, 33) by the direct (low impedance) interfacing of test equipment (20) to the line is precluded by a protective interlock circuit, which prevents the test set from seizing the line if data traffic is present. The interlock circuit is coupled between the line circuit to be accessed and the test equipment, and includes a multiple band frequency detector (31), which monitors the line for signals lying within (in and out-of-audio) frequency bands. Should the detector identify any traffic within its sensitivity range (out of the audio band) during the interval of a timing pulse produced by the closure of a switch (51), the logic level applied to combinational logic will change state and prevent the generation of a test set enabling signal.

    Abstract translation: 通过保护互锁电路阻止测试设备(20)与线路的直接(低阻抗)接口在电话线(32,33)上的通信信号的损坏,这防止了测试装置如果数据流量 存在。 联锁电路耦合在要访问的线路电路和测试设备之间,并且包括多频段频率检测器(31),该多频带检测器(31)监测线路中位于(在和不在音频)频带内的信号。 如果在由闭合开关(51)产生的定时脉冲的间隔期间,检测器识别其灵敏度范围内的任何流量(在音频带外),则应用于组合逻辑的逻辑电平将改变状态并防止产生 测试仪启用信号。

    KEYPAD/DIALER INTERFACE FOR TELEPHONE TEST
    62.
    发明申请
    KEYPAD/DIALER INTERFACE FOR TELEPHONE TEST 审中-公开
    键盘/拨号接口电话测试

    公开(公告)号:WO1990001840A1

    公开(公告)日:1990-02-22

    申请号:PCT/US1989003319

    申请日:1989-08-02

    CPC classification number: H04M1/24

    Abstract: The functionality of the keypad (10) of a telephone test set is augmented by an interface circuit (20) arrangement which enables keys of the keypad to be used to control both dialing signal generation and prescribed test functions, while effectively preventing interference between the operation of a dialing signal generator (30), to which the keypad is coupled during a first mode of operation, and that of test function signal generator circuitry, provided exclusive of the dialing signal generator, during a second mode of operation. Additionally, the test set includes a ringing signal coupling circuit (350) for enabling the test set microphone, through which a telephone craftsperson voices audio speech signals to a speech signal processing circuit (390), to be used to audibilize the ringing signal, without impacting the normal voice input functionality of the microphone (375) and associated speech signal processor (390).

    ISDN TRAFFIC GENERATOR ADAPTOR
    63.
    发明申请
    ISDN TRAFFIC GENERATOR ADAPTOR 审中-公开
    ISDN交通发电机适配器

    公开(公告)号:WO1989011190A1

    公开(公告)日:1989-11-16

    申请号:PCT/US1989001999

    申请日:1989-05-10

    CPC classification number: H04J3/14 H04Q11/0435

    Abstract: ISDN traffic generator adaptor couples an analog traffic generator which produces commands and analog telephone signals to an ISDN switch. Adaptor includes first circuits (12) each including tip/ring interface circuits (18), a processor (20) and S interface circuits (22). The tip/ring interface circuits (18) detect commands from the traffic generator and provide messages to the processor (20). Tip/ring interface circuits (18) convert telephone signals from the traffic generator into ISDN B channel signals to be provided to S interface circuits (22) and B channel signals received from S interface circuitry (22) into analog tip/ring signals to be provided to the traffic generator. Processor (20) receives messages from tip/ring interface circuit (18) and generate D channel signals provided to S interface circuits (22). Processor (20) also receive, act on and store D channel signals received from the switch through the S interface circuitry (22).

    Abstract translation: ISDN业务发生器适配器将产生命令和模拟电话信号的模拟业务发生器耦合到ISDN交换机。 适配器包括每个包括尖端/环形接口电路(18),处理器(20)和S接口电路(22)的第一电路(12)。 尖端/环形接口电路(18)检测来自业务发生器的命令并向处理器(20)提供消息。 尖端/环形接口电路(18)将来自业务发生器的电话信号转换成ISDN B信道信号,以提供给S接口电路(22)和从S接口电路(22)接收的B信道信号转换为模拟尖端/振铃信号 提供给交通发电机。 处理器(20)从尖端/环形接口电路(18)接收消息并产生提供给S接口电路(22)的D信道信号。 处理器(20)还通过S接口电路(22)接收,操作并存储从交换机接收的D信道信号。

    POWER FACTOR SENSING MOTOR CONTROLLER
    64.
    发明申请
    POWER FACTOR SENSING MOTOR CONTROLLER 审中-公开
    功率因数感应电动机控制器

    公开(公告)号:WO1983003930A1

    公开(公告)日:1983-11-10

    申请号:PCT/US1983000622

    申请日:1983-04-28

    CPC classification number: H02J3/1892 H02P23/26

    Abstract: An A.C. motor controller controls power factor by phase controlling the on-time of the gate controlled semiconductor switch in series with the motor. The circuit provides a power factor sensing motor controller with an improved phase-to-voltage convertor. The phase-to-voltage converter a capacitor (25) whose terminals are alternately charged by an AC voltage supply while the other terminal is fixed at a reference potential (28). The charging of the terminals are terminated by a switch (46, 50) which monitors the reversal of the current through the inductive load (10) to charge the capacitor (25) to a value representing the motor phase angle. In addition to a current sink (54, 58) which discharges the capacitor (25) as a representation of the desired phase angle theta c, a compensating current sink (57, 81) is added to discharge the capacitor (25) as function of the series motor switch (14) on time represented by theta t.

    Abstract translation: 交流电动机控制器通过相位控制与电动机串联的门控半导体开关的导通时间来控制功率因数。 该电路提供了功率因数感测电机控制器,改进的相电压转换器。 相电压转换器,其电容器(25)的端子由交流电压电源交替充电,而另一个端子固定在基准电位(28)。 端子的充电由开关(46,50)终止,开关(46,50)监测通过电感负载(10)的电流的反转,以将电容器(25)充电到表示电动机相位角的值。 除了作为期望的相位角θc的表示放电电容器(25)的电流吸收器(54,58)之外,还添加补偿电流吸收器(57,81),以将电容器(25)作为 串联电动机开关(14)的导通时间由theta t表示。

    VIDEO COMPUTING SYSTEM WITH AUTOMATICALLY REFRESHED MEMORY
    65.
    发明申请
    VIDEO COMPUTING SYSTEM WITH AUTOMATICALLY REFRESHED MEMORY 审中-公开
    具有自动刷新存储器的视频计算系统

    公开(公告)号:WO1983002834A1

    公开(公告)日:1983-08-18

    申请号:PCT/US1983000160

    申请日:1983-02-04

    CPC classification number: G09G5/001 G11C11/406

    Abstract: Le système vidéo de traitement de données à régénération automatique de mémoire comprend une mémoire dynamique (20) connectée à un tube (22) à rayons cathodiques. Un régulateur (26) du tube à rayons cathodiques est également connecté à la mémoire (20) et est capable de générer des adresses en séquence, correspondant aux positions dans la mémoire (20). Une unité centrale (30) de traitement est connectée à la mémoire dynamique (20) et opère selon un cycle alternatif à deux phases de recherche et d'exécution. Pendant la phase de recherche, l'unité centrale (30) de traitement a accès à la mémoire dynamique (20), tandis que pendant chaque phase d'exécution, quand les opérations de traitement sont en cours, l'accès à la mémoire dynamique (20) est bloqué. Par contre, pendant la phase d'exécution, le régulateur (26) du tube à rayons cathodiques peut accéder directement à la mémoire (20) ce qui permet la transmission de l'information vidéo qui y est stockée au tube à rayons cathodiques. La lecture séquentielle et continue de la mémoire (20) pendant chaque phase d'exécution a pour effet une régénération continue de la mémoire (20).

    IMPROVEMENTS IN OR RELATING TO A METHOD AND APPARATUS FOR DETERMINING SYMBOL TIMING IN A WIRELESS COMMUNICATIONS SYSTEM, ALSO USING A REUSABLE CONTROL CHANNEL, AND REDUCING POWER
    66.
    发明申请
    IMPROVEMENTS IN OR RELATING TO A METHOD AND APPARATUS FOR DETERMINING SYMBOL TIMING IN A WIRELESS COMMUNICATIONS SYSTEM, ALSO USING A REUSABLE CONTROL CHANNEL, AND REDUCING POWER 审中-公开
    关于在无线通信系统中确定符号时序的方法和装置的改进,还使用可重用的控制信道,并减少功率

    公开(公告)号:WO1998000992A2

    公开(公告)日:1998-01-08

    申请号:PCT/US1997011485

    申请日:1997-06-30

    Abstract: A wireless communication system in which a base station communicates with plural mobile stations using a control channel and plural voice (or data) channels, and uses the control channel as a voice channel whenever the other voice channels are in use and a request is received from a mobile station for another voice channel. Also a method and apparatus for reducing power consumed by mobile, wireless units, such as personal communications systems or wireless PBX telephones, by reducing the frequency with which various circuits within the units are fully energized. During on-going voice communications between a base station and a wireless unit, the wireless unit reduces the frequency of its references to a control channel and may eliminate such references altogether. Moreover a method and apparatus for determining the timing of symbols within a multiple symbol telecommunicated message by evaluating signal characteristics in both the preamble and data portions of a message. Samples of a received signal are taken at a periodic basis and a predetermined characteristic of the signal is evaluated for each sample.

    Abstract translation: 一种无线通信系统,其中基站使用控制信道和多个语音(或数据)信道与多个移动台进行通信,并且每当其他语音信道在使用中并且从其中接收到请求时,将该控制信道用作语音信道 用于另一语音信道的移动台。 还有一种通过降低单元内的各种电路完全通电的频率来减少诸如个人通信系统或无线PBX电话的移动式无线单元所消耗的功率的方法和装置。 在基站和无线单元之间的正在进行的语音通信期间,无线单元降低其对控制信道的引用的频率,并且可以完全消除这种参考。 此外,一种用于通过评估消息的前导码和数据部分中的信号特性来确定多符号电信消息内的符号定时的方法和装置。 接收到的信号的采样是周期性的,并且针对每个样本评估信号的预定特性。

    SEMI-INSULATING WAFER
    68.
    发明申请
    SEMI-INSULATING WAFER 审中-公开
    半绝缘波

    公开(公告)号:WO1997002598A1

    公开(公告)日:1997-01-23

    申请号:PCT/US1996011167

    申请日:1996-06-28

    CPC classification number: H01L21/76251

    Abstract: A bonded wafer (10) has a silicon device layer (20) bonded to a layer of semi-insulating material (14), preferably a mobility degraded silicon such as polycrystaline silicon. Layer (14) is thick enough and substrate (16) is conductive enough to reduce resistive losses when devices in layer (20) are operated at frequencies above 0.1 GHZ. Substrate (16) is conductive enough and semi-insulating material (14) is resistive enough to prevent cross-talk among devices in layer (20).

    Abstract translation: 接合晶片(10)具有与半绝缘材料层(14)结合的硅器件层(20),优选迁移率降低的硅,例如多晶硅。 层(14)足够厚,并且衬底(16)足够导电以减少当层(20)中的器件在高于0.1GHZ的频率下操作时的电阻损耗。 衬底(16)是足够导电的,并且半绝缘材料(14)具有足够的电阻以防止层(20)中的器件之间的串扰。

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