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82 条记录 (耗时 0.015 秒)

    Method and apparatus for storing information
    1.
    发明授权
    Method and apparatus for storing information 失效
    存储信息的方法和装置

    公开(公告)号：US3631295A

    公开(公告)日：1971-12-28

    申请号：US3631295D

    申请日：1969-06-16

    申请人： ATOMIC ENERGY AUTHORITY UK

    发明人： POOLEY DEREK

    IPC分类号： G01S7/06 ,  G11C13/04 ,  H01J29/18 ,  H01J31/58 ,  H01J31/64 ,  H01J29/50

    CPC分类号： H01J31/64 ,  G01S7/06 ,  G11B9/10 ,  G11B11/002 ,  G11C13/048 ,  H01J29/182 ,  H01J31/58

    摘要： Information is stored, erased and read in an electronluminescent phosphor by electron beams of respectively medium, high and low intensity. The medium intensity beam produces radiation damage in the phosphor which quenches its subsequent luminescence when irradiated with the reading low-intensity beam. The high-intensity beam heats the crystal and anneals out damaged areas thus restoring full (or nearly full) luminescence under the reading beam. In application to a storage tube the whole of the phosphor surface can be made to luminesce (with bright and quenched regions according to the information ''''written'''' in) by flooding the whole surface with ultraviolet light.

    Individually hermetically sealed cathode-ray tubes connected by fiber optics array
    2.
    发明授权
    Individually hermetically sealed cathode-ray tubes connected by fiber optics array 失效
    由光纤阵列连接的独立密封阴极射线管

    公开(公告)号：US3624442A

    公开(公告)日：1971-11-30

    申请号：US3624442D

    申请日：1969-12-18

    申请人： GTE SYLVANIA INC

    发明人： SMITHGALL HARRY E ,  STONE ELMER O

    IPC分类号： H01J29/89 ,  H01J31/64 ,  H01J31/00 ,  H01J29/00 ,  H01J31/08

    CPC分类号： H01J31/64 ,  H01J29/892

    摘要： An improved scan-conversion device is provided in the form of a combination of two separate cathode-ray tube sections utilizing a common faceplate portion therebetween. A method of fabrication embodies peripherally sealing an envelope funnel to a first surface of the common faceplate, whereupon a cathodoluminescent screen is formed. Upon positioning and sealing an electron gun in the funnel portion of the first envelope, the envelope is evacuated, sealed and processed to provide a display-forming section. A target electrode is then formed on the outer surface of the common faceplate, and a second envelope funnel, having an electron gun positioned and sealed therein, is peripherally bonded thereto; whereupon the second envelope is evacuated, sealed and processed to provide a display-reading section oriented to directly cooperate with the display-forming section.

    Signal storage tube system with enhanced signal-to-noise ratio
    3.
    发明授权
    Signal storage tube system with enhanced signal-to-noise ratio 失效
    具有增强信号噪声比的信号储存管系统

    公开(公告)号：US3619704A

    公开(公告)日：1971-11-09

    申请号：US3619704D

    申请日：1969-07-09

    申请人： JAMES W SCHWARTZ

    发明人： SCHWARTZ JAMES W

    IPC分类号： H01J31/64 ,  H03K7/02 ,  H01J29/50

    CPC分类号： H01J31/64 ,  H03K7/02

    摘要： Alternative systems are disclosed for enhancing the signal-tonoise ratio in a signal storage tube. The intensity of the write beam is amplitude-modulated and it sweeps the target in a vertical raster. The read beam has a constant intensity and sweeps the target in a horizontal raster. In one embodiment, the video signal for one of a predetermined number of write lines is inverted and stored on the target in this inverted form thus translating the frequency band of the read signal to a higher value and out of the frequency range of noise caused by the physical characteristics of the target and the collection optics. In a second embodiment, a signal representative of the background noise is generated and subtracted from the output signal.