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12 条记录 (耗时 0.014 秒)

    Driving circuit for a light emitting diode array
    1.
    发明公开
    Driving circuit for a light emitting diode array 失效
    Treiberschaltungfüreine Leuchtdiodenanordnung。

    公开(公告)号：EP0283934A1

    公开(公告)日：1988-09-28

    申请号：EP88104260.0

    申请日：1988-03-17

    申请人： HITACHI, LTD. ,  SEIKO INSTRUMENTS INC. ,  HITACHI CABLE, LTD.

    发明人： Hirane, Hideo ,  Tanno, Kiyohiko ,  Yagi, Kentaro ,  Iitsuka, Hisao

    IPC分类号： G06K15/12

    CPC分类号： G06K15/1247 ,  H04N1/40031 ,  H04N1/4015

    摘要： A driving circuit for a light emitting diode array, which is divided into a plurality of drivers (B₁, B₂, ..... B n , B m ) for every driving output (Q₁, Q₂, ....., Q N ) and so constructed that the control of the sum of the currents flowing therethrough is set by selecting one or a plurality of the divided drivers (B₁, B₂, ..... B n ) by using digital signals "1" and "0".

    摘要翻译： 一种用于每个驱动输出（Q1，Q2，...，QN）的发光二极管阵列的驱动电路，其被分成多个驱动器（B1，B2，... Bn，Bm）和 通过使用数字信号“1”和“0”来选择一个或多个划分的驱动器（B1，B2，... Bn）来设定流过其中的电流之和的控制。

    Light emitter array diagnostic apparatus
    3.
    发明公开
    Light emitter array diagnostic apparatus 失效
    发光二极管阵列诊断装置

    公开(公告)号：EP0446829A3

    公开(公告)日：1991-11-13

    申请号：EP91103678.8

    申请日：1991-03-11

    申请人： HITACHI, LTD. ,  HITACHI CABLE, LTD.

    发明人： Hirane, Hideo ,  Tanno, Kiyohiko ,  Masuda, Kazuhito

    IPC分类号： B41J2/45

    CPC分类号： B41J2/45

    摘要： A light emitter array diagnostic apparatus for diagnosing whether individual light emitter elements (E1-En) in a light emitter array unit (3) normally emit light or not includes a check data generator (1) which supplies check data so as to cause sequential simultaneously emission of light from at least one light emitter element (E1-En) in each of a plurality of groups of the light emitter array unit (3) divided into such groups (31, 32, 33, ..., 3n), until all of the light emitter elements (E1-En) emit light. The light outputs from the individual light emitter elements (E1-En) are received and photoelectrically converted by photo detector units (41, 42, 43, . .., 4n), and a diagnostic unit (4) connected to the photo detector units (41,42,43,--4n) and including an adder (50) and/or a comparator (6) diagnoses the state of luminescence of the individual light emitter elements (E1-En).

    Light emitter array diagnostic apparatus
    4.
    发明公开
    Light emitter array diagnostic apparatus 失效
    LichtstrahlerfeldfüreinDiagnosegerät。

    公开(公告)号：EP0446829A2

    公开(公告)日：1991-09-18

    申请号：EP91103678.8

    申请日：1991-03-11

    申请人： HITACHI, LTD. ,  HITACHI CABLE, LTD.

    发明人： Hirane, Hideo ,  Tanno, Kiyohiko ,  Masuda, Kazuhito

    IPC分类号： B41J2/45

    CPC分类号： B41J2/45

    摘要： A light emitter array diagnostic apparatus for diagnosing whether individual light emitter elements (E1-En) in a light emitter array unit (3) normally emit light or not includes a check data generator (1) which supplies check data so as to cause sequential simultaneously emission of light from at least one light emitter element (E1-En) in each of a plurality of groups of the light emitter array unit (3) divided into such groups (31, 32, 33, ..., 3n), until all of the light emitter elements (E1-En) emit light. The light outputs from the individual light emitter elements (E1-En) are received and photoelectrically converted by photo detector units (41, 42, 43, . .., 4n), and a diagnostic unit (4) connected to the photo detector units (41,42,43,--4n) and including an adder (50) and/or a comparator (6) diagnoses the state of luminescence of the individual light emitter elements (E1-En).

    摘要翻译： 一种用于诊断光发射器阵列单元（3）中的各个发光元件（E1-En）是否正常发光的发光体阵列诊断装置，包括检查数据发生器（1），该校验数据发生器（1）提供校验数据以便同时进行 从分配成这样的组（31,32,33，...，3n）的发光体阵列单元（3）的多个组中的至少一个发光元件（E1-En）发射光，直到 所有发光元件（E1-En）发光。 来自各个发光元件（E1-En）的光输出被光检测器单元（41,42,43，...，4n）接收和光电转换，以及连接到光电检测器单元 （41,42,43，-4n），并且包括加法器（50）和/或比较器（6）来诊断各个发光元件（E1-En）的发光状态。

    Scan signal processing system
    8.
    发明公开
    Scan signal processing system 失效
    扫描信号处理系统

    公开(公告)号：EP0039899A3

    公开(公告)日：1983-01-05

    申请号：EP81103441

    申请日：1981-05-06

    申请人： Hitachi, Ltd. ,  Nippon Telegraph and Telephone Public Corporation

    发明人： Tadauchi, Masaharu ,  Tanno, Kiyohiko ,  Nakano, Taizch

    IPC分类号： H04N01/40 ,  G06K09/38

    CPC分类号： G06K9/38 ,  H04N1/401 ,  H04N1/403

    摘要： An analog scan signal having a repetitive background waveform is converted into a multi-level signal through a peak hold circuit (2), a converter (14,83,93), a digital memory (4,4') and a discriminator (6). The peak hold circuit detects and holds the peak voltage of the current scan lines. The background waveform is normalized by the peak voltage and converted into a digital signal in the converter and stored in the memory. The analog scan signal is discriminated in the discriminator on the basis of a reference voltage produced with the normalized background waveform read out of the memory and converted in the converter and with the current peak voltage supplied from the peak hold circuit.

    Fixing device and recording device
    10.
    发明公开
    Fixing device and recording device 失效
    固定装置和记录装置

    公开(公告)号：EP0332105A3

    公开(公告)日：1990-05-30

    申请号：EP89103889.5

    申请日：1989-03-06

    申请人： HITACHI, LTD.

    发明人： Tanno, Kiyohiko ,  Miyoshi, Tadahiko ,  Sobue, Masahisa ,  Yasutomi, Yoshiyuki ,  Yamashita, Nobuyuki ,  Nagase, Hiroshi ,  Arimoto, Shoji ,  Jooraku, Fumio ,  Yasui, Eiji

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2057

    摘要： Herein are provided a fixing device for use in toner processes such as electrophotography and the like which comprises a thermal fixing roll (12) used after trans­fer of toner, a compression bonding roll (13) and a heat generating medium for said thermal fixing roll which is a composite ceramic prepared by adding an organic binder to a powder of metallic silicon or ferrosilicon, heating and kneading the resulting mixture, forming the mixture into a formed product, removing the organic binder from the formed product at an elevated temperature and heating and sintering the formed product in an atmosphere of nitrogenating gas to connect the insulating particles and electroconductive particles of Si₃N₄, Si₂N₂O or SiO₂ formed from the silicon and different in electrical resistivity from one another with whiskers formed from the silicon, and a recording device (8-11,14) utilizing said fixing device.