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43 条记录 (耗时 0.01 秒)

    Magnetostrictive delay-line memory
    1.
    发明授权
    Magnetostrictive delay-line memory 失效
    磁介质延迟线存储器

    公开(公告)号：US3611323A

    公开(公告)日：1971-10-05

    申请号：US3611323D

    申请日：1969-05-22

    申请人： IWATSU ELECTRIC CO LTD

    发明人： GOTO TADAHIRO ,  KAKUTA KAZUHIKO

    IPC分类号： G11C21/02

    CPC分类号： G11C21/026

    摘要： A delay-line memory using a magnetostrictive delay-line, in which a pair of bidirectional pulses derived from the delay-line by the use of a magnetostrictive-electric transducer and having successive reverse polarities with respect to the successive polarities of a preceding bidirectional pulse are converted into a square wave output signal by a bistable circuit performing hysteresis switching action triggered at times when the instantaneous level of the bidirectional pulses exceeds a first reference level determined between the zero level and the plus peak level of the bidirectional pulses and descends a second reference level determined between the zero level and the minus peak level of the bidirectional pulses.

    System for the modification of data stored in recirculating delay lines
    2.
    发明授权
    System for the modification of data stored in recirculating delay lines 失效
    用于修改延迟延迟线中存储的数据的系统

    公开(公告)号：US3603774A

    公开(公告)日：1971-09-07

    申请号：US3603774D

    申请日：1968-06-10

    申请人： SITS SOC IT TELECOM SIEMENS

    发明人： VARDA GIORGIO DE ,  MARTINELLI SAVERIO ,  PERNA ALDO

    IPC分类号： G11C21/00 ,  G11C21/02 ,  H04Q11/04 ,  G06F7/50

    CPC分类号： H04Q11/04 ,  G11C21/00 ,  G11C21/026

    摘要： In a telecommunication system of the time-sharing type wherein several calls are concurrently conducted over a common line circuit by means of interleaved message signals recurring in a predetermined order, command pulses relating to the several calls are sequentially directed to the input of a register with several parallel memory stages each including a delay line whose delay time encompasses a number of pulse cycles equal to the maximum number of calls to be accommodated simultaneously by the line circuit. Digital pulses traveling along each memory stage are continuously fed back from the output to the input thereof for reinscription until modified by a command signal applied to all the memory stages through a logic matrix for carrying out such operations as ''''enter 1,'''' ''''enter 0,'''' ''''inscribe new number,'''' ''''add 1'''' and ''''subtract 1.

    Magneto-strictive delay lines
    5.
    发明授权
    Magneto-strictive delay lines 失效
    强磁延迟线

    公开(公告)号：US3024428A

    公开(公告)日：1962-03-06

    申请号：US69581957

    申请日：1957-11-12

    申请人： SIEMENS EDISON SWAN LTD

    发明人： JAMES WARMAN BLOOMFIELD

    IPC分类号： G05D23/24 ,  G11C21/02 ,  H03H9/36

    CPC分类号： G05D23/2456 ,  G11C21/026 ,  H03H9/36

    摘要： 813,591. Automatic temperature control. SIEMENS EDISON SWAN Ltd. Oct. 17, 1957 [Nov. 14, 1956], No. 34819/56. Class 38 (4). The temperature of a magneto-strictive delay line is maintained constant by varying a heating current therethrough in accordance with its electrical impedance. In one embodiment, unbalance of a D.C. bridge B, Fig. 1, having the delay line D in one arm, is detected by the control winding CW of a saturable reactor S, the main winding MW of which is in series with an A.C. source T1, rectifier Rf and the input of the bridge. When the line D approaches the required temperature, the bridge approaches the balance point and the bridge current, and hence the line heating current, approaches zero. To avoid overheating the line, in abnormal conditions, e.g. during setting up, the circuit is rendered responsive to unbalance in one direction only by the inclusion of rectifier Rf2 in the circuit of the control winding CW. In a modification the bridge current is derived from a transistor amplifier controlled by the rectifier circuit including the saturable reactor, Fig. 2 (not shown), or the transistor amplifier may be replaced by a magnetic amplifier. In an embodiment using an A.C. bridge and line heating current, the bridge B1, Fig. 3, including the line D is supplied from the A.C. source through winding W3 of a transformer TF2. The out-of-balance potential is applied via transformer TF1, and transistor amplifier TS2, to the other winding W4 of transformer TF2 to augment the bridge current flowing through winding W3. If the bridge becomes unbalanced in the abnormal direction the amplified output of transformer TFl is in opposite phase and diminishes the bridge current. Series and shunt rectifiers Rf4 and Rf5 are connected in the collector-emitter path of transistor TS2 to protect the latter from positive excursions of the applied A.C.

    Visual display system with digital storage of video information
    7.
    发明授权
    Visual display system with digital storage of video information 失效
    具有视频信息数字存储的视觉显示系统

    公开(公告)号：US3651253A

    公开(公告)日：1972-03-21

    申请号：US3651253D

    申请日：1970-02-17

    申请人： THOMSON CSF

    发明人： MORGAND JEAN PAUL ,  MAGNAN HENRI ,  ROMAGNY BERNARD

    IPC分类号： G01S7/62 ,  G09G1/06 ,  G11C21/02 ,  G08B5/22 ,  H04N5/76 ,  H04N7/12

    CPC分类号： G11C21/026 ,  G01S7/62 ,  G09G1/06

    摘要： A visual display system for visualizing an image represented by a video signal comprising an analogue-to-digital converter for translating this video signal into a digital signal, a memory for storing this digital signal while supplying it continuously and a digital-to-analogue converter connected to the memory and restituting an analogue image signal to a conventional display tube.

    摘要翻译： 一种可视化显示系统，用于将由包括用于将该视频信号转换为数字信号的模拟 - 数字转换器的视频信号表示的图像可视化，用于在连续提供该数字信号的同时存储该数字信号的存储器和数模转换器 连接到存储器并将模拟图像信号复原到常规显示管。

    Bipolar current generator
    8.
    发明授权
    Bipolar current generator 失效
    双极电流发电机

    公开(公告)号：US3555525A

    公开(公告)日：1971-01-12

    申请号：US3555525D

    申请日：1968-05-15

    申请人： EDO CORP

    发明人： ROTHBART ARTHUR

    IPC分类号： G11C21/02 ,  G11C7/00 ,  H03K4/48

    CPC分类号： G11C21/026

    摘要： A DOUBLE ENDED CIRCUIT ARRANGEMENT FOR DRIVING A MAGNETOSTRICTIVE DELAY LINE INCLUDES AN INPUT DRIVING COIL CONNECTED IN A LOW PASS FILTER CONSTRUCTION. CONTROLLED SWITCHING ELEMENTS ARE PROVIDED TO DIRECT CURRENT IN ALTERNATING DIRECTIONS THROUGH THE DRIVING COIL, WITH THE CURRENT SWITCHING TRANSIENTS BEING EXPONENTIAL IN FORM.