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    Memory system
    1.
    发明授权
    Memory system 失效
    内存系统

    公开(公告)号：US3919700A

    公开(公告)日：1975-11-11

    申请号：US49052774

    申请日：1974-07-22

    Applicant: IBM

    Inventor： COZZO JOSEPH ,  GARROD DAVID K ,  KAZYAKA THOMAS G ,  MELCHER ROBERT L ,  SHIREN NORMAN S

    IPC: G11C11/42 ,  G11C13/04 ,  H01L41/00 ,  H03K3/45

    CPC classification number: H03K3/45 ,  G11C11/42 ,  G11C13/042 ,  H01L41/00

    Abstract: Piezoelectric photosensitive semiconductor crystals or semiinsulators are employed either to store or to process high frequency signals. Storage is accomplished in the crystal by a stable pattern of trapped electrons produced by the interference between two radio-frequency input signal pulses. The latter are applied successively to the crystal, after an initial illumination, causing ultrasonic waves to be generated. The ultrasonic wave of the first pulse, together with the electric field of the second, cause the trapped electrons to be redistributed in a pattern which has the same spatial variation as the ultrasonic wave. In effect, the information contained in the original pulse is stored in the crystal, the latter serving as a recording medium operating over the whole radio frequency range.

    Abstract translation: 压电光敏半导体晶体或半绝缘体用于存储或处理高频信号。 通过由两个射频输入信号脉冲之间的干扰产生的捕获电子的稳定图案在晶体中实现存储。 后者在初始照射之后连续施加到晶体，导致产生超声波。 第一脉冲的超声波与第二脉冲的超声波一起导致被俘获的电子以与超声波相同的空间变化的图案重新分布。 实际上，包含在原始脉冲中的信息被存储在晶体中，后者用作在整个射频范围内工作的记录介质。

    CLAMPED ACOUSTIC ELASTIC WAVE GENERATOR
    2.
    发明专利
    CLAMPED ACOUSTIC ELASTIC WAVE GENERATOR 未知

    公开(公告)号：CA1097791A

    公开(公告)日：1981-03-17

    申请号：CA283250

    申请日：1977-07-21

    Applicant: IBM

    Inventor： MELCHER ROBERT L ,  VON GUTFELD ROBERT J

    IPC: H04R17/00 ,  G01N21/00 ,  G01N29/00 ,  G01N29/28 ,  G10K15/04 ,  H01L49/00

    Abstract: CLAMPED ACOUSTIC ELASTIC WAVE GENERATOR A pulse of energy including atomic, thermal or electromagnetic radiation produced by a source such as an electron or atomic beam, laser, electrical or optical means is applied to a generator. The generator includes a body of material adapted for acoustic vibration. An energy absorbing layer is in intimate acoustic contact with the body of material so that acoustic vibrations generated in the absorbing layer are transmitted to the body of material. The surface of the absorbing layer opposite to the body of material is acoustically clamped in position by a solid clamping medium.

    3.
    发明专利
    未知

    公开(公告)号：FR2371243A1

    公开(公告)日：1978-06-16

    申请号：FR7723004

    申请日：1977-07-21

    Applicant: IBM

    Inventor： MELCHER ROBERT L ,  GUTFELD ROBERT J VON

    IPC: H04R17/00 ,  G01N21/00 ,  G01N29/00 ,  G01N29/28 ,  G10K15/04 ,  B06B1/00 ,  G01N29/04

    Abstract: A pulse of energy including atomic, thermal or electromagnetic radiation produced by a source such as an electron or atomic beam, laser, electrical or optical means is applied to a generator. The generator includes a body of material adapted for acoustic vibration. An energy absorbing layer is in intimate acoustic contact with the body of material so that acoustic vibrations generated in the absorbing layer are transmitted to the body of material. The surface of the absorbing layer opposite to the body of material is acoustically clamped in position by a solid clamping medium.

    4.
    发明专利
    未知

    公开(公告)号：DE69633998T2

    公开(公告)日：2005-12-22

    申请号：DE69633998

    申请日：1996-09-04

    Applicant: IBM

    Inventor： CIPOLLA THOMAS M ,  COLGAN EVAN ,  MELCHER ROBERT L ,  MOK LAWRENCE S ,  NARAYAN CHANDRASEKHAR ,  SHI LEATHEN ,  YANG KEI-HSIUNG

    IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/136 ,  G09F9/00 ,  H04N5/74 ,  G02F1/1335 ,  H04N9/31

    Abstract: A liquid crystal element, a packaging structure providing thermal and alignment control, a display device including the same, and methods of fabrication and assembly are provided. The liquid crystal element includes: a semiconductor wafer, having microcircuitry and an array of reflective pixels; a layer of electro-optical responsive liquid crystal medium, of uniform thickness, disposed on the reflective pixels; a transparent conductive layer positioned on the liquid crystal, being substantially parallel to the reflective layers, to ensure a uniform thickness of the liquid crystal; and an insulative transparent layer provided on the conductive layer. The liquid crystal element is laminated to an optically flat substrate to limit the out-of-plane distortions thereof. The structure formed by element and substrate are disposed in a substrate holder which is mounted to a wiring board, and coupled to voltage sources for actuating the liquid crystal. During mounting, an aligning fixture is used to ensure proper orientation of the element relative to the related optical elements. Once the element is positioned, a heat sink is coupled to the rear surface of the substrate holder to dissipate heat.

    OPTICAL SCANNING
    6.
    发明专利
    OPTICAL SCANNING 未知

    公开(公告)号：CA1072662A

    公开(公告)日：1980-02-26

    申请号：CA268647

    申请日：1976-12-23

    Applicant: IBM

    Inventor： MELCHER ROBERT L ,  SHIREN NORMAN S

    IPC: H01L27/146 ,  H01L31/00 ,  H01L41/08 ,  H04N3/10 ,  H04N5/30

    Abstract: OPTICAL SCANNER This disclosure provides an optical scanner for transforming an optical image into electrical signals. Through practice of this disclosure an optical image is projected onto a surface of a photosensitive semiconductor body wherein there is established a charge distribution or perturbation or pattern which reflects the variations in optical intensity of the optical image. Through the parametric interaction of simultaneously applied electric field and acoustic wave to each respective portion of the electrical charge pattern on the photosensitive semiconductor surface, there is obtained a backward acoustic wave which is directed toward the source of the initiating acoustic wave. In particular, the acoustic wave in the acoustic medium may be either a surface acoustic wave (SAW) or a bulk acoustic wave. Where the surface acoustic wave is utilized, the acoustic medium may be commensurately thin. The acoustic medium must be piezoelectric for it is the interaction of the electric field of the acoustic wave with the applied electric field via the charge pattern which achieves the parametric interaction. Through the "holographic" electric field echo effect, an optical scanner may be achieved for the practice of this disclosure by storage of a charge pattern related to the optical image.

    8.
    发明专利
    未知

    公开(公告)号：FR2280172A1

    公开(公告)日：1976-02-20

    申请号：FR7517192

    申请日：1975-05-27

    Applicant: IBM

    Inventor： COZZO JOSEPH ,  MELCHER ROBERT L ,  GARROD DAVID K ,  SHIREN NORMAN S ,  KAZYAKA THOMAS G

    IPC: G11C11/42 ,  G11C13/04 ,  H01L41/00 ,  H03K3/45 ,  G11C11/21 ,  G11C27/00 ,  H01L41/10 ,  H03H9/00

    Abstract: Piezoelectric photosensitive semiconductor crystals or semi-insulators are employed either to store or to process high frequency signals. Storage is accomplished in the crystal by a stable pattern of trapped electrons produced by the interference between two radio-frequency input signal pulses. The latter are applied successively to the crystal, after an initial illumination, causing ultrasonic waves to be generated. The ultrasonic wave of the first pulse, together with the electric field of the second, cause the trapped electrons to be redistributed in a pattern which has the same spatial variation as the ultrasonic wave. In effect, the information contained in the original pulse is stored in the crystal, the latter serving as a recording medium operating over the whole radio frequency range.

    9.
    发明专利
    未知

    公开(公告)号：DE69633998D1

    公开(公告)日：2005-01-13

    申请号：DE69633998

    申请日：1996-09-04

    Applicant: IBM

    Inventor： CIPOLLA THOMAS M ,  COLGAN EVAN ,  MELCHER ROBERT L ,  MOK LAWRENCE S ,  NARAYAN CHANDRASEKHAR ,  SHI LEATHEN ,  YANG KEI-HSIUNG

    IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/136 ,  G09F9/00 ,  H04N5/74 ,  G02F1/1335 ,  H04N9/31

    Abstract: A liquid crystal element, a packaging structure providing thermal and alignment control, a display device including the same, and methods of fabrication and assembly are provided. The liquid crystal element includes: a semiconductor wafer, having microcircuitry and an array of reflective pixels; a layer of electro-optical responsive liquid crystal medium, of uniform thickness, disposed on the reflective pixels; a transparent conductive layer positioned on the liquid crystal, being substantially parallel to the reflective layers, to ensure a uniform thickness of the liquid crystal; and an insulative transparent layer provided on the conductive layer. The liquid crystal element is laminated to an optically flat substrate to limit the out-of-plane distortions thereof. The structure formed by element and substrate are disposed in a substrate holder which is mounted to a wiring board, and coupled to voltage sources for actuating the liquid crystal. During mounting, an aligning fixture is used to ensure proper orientation of the element relative to the related optical elements. Once the element is positioned, a heat sink is coupled to the rear surface of the substrate holder to dissipate heat.

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