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    • 5. 发明公开
    • Image sensor driving method with high-speed voltage response
    • Verfahren zum Betrieb eines Bildabtasters mit hoher Spannungsansprechgeschwindigkeit。
    • EP0371485A2
    • 1990-06-06
    • EP89122013.9
    • 1989-11-29
    • KABUSHIKI KAISHA TOSHIBA
    • Suzuki, KouheiTanuma, ChiakiTakayama, SatoshiMori, Kenichi
    • H04N3/15
    • H04N5/3692
    • In an image sensor, not only a photo-responsive characteristic but also a voltage response characteristic are improved. A method for driving an image sensor including: a pair of first and second main electrodes (16: 17) fabricated on a semiconductor layer (14) in such a manner that the first and second main electrodes (16: 17) are separated with each other via a light receiving region; an insulting layer (13) stacked on the semiconductor layer (14); and an auxiliary electrode (12) stacked on said insulating layer (13), comprises the steps of: applying a constant bias voltage (-V₁₁) to the auxiliary electrode (12) over both a read time period (T₁) and a non-read time period (T₀) of a signal current (I D ) of the image sensor; applying to the first main electrode (16), a drive voltage pulse (-V₁₀) by which a carrier injection into the semiconductor layer (14) is accelerated to vary a potential at the first main electrode (16) with respect to the auxiliary electrode (12) at least during the read time period (T₀) of the signal current (I D ); and, deriving the signal current (I D ) from the second main electrode (17) during only the read time period (T₁) of the signal current (I D ).
    • 在图像传感器中,不仅光响应特性而且电压响应特性得到改善。 一种用于驱动图像传感器的方法,包括:以半导体层(14)制造的一对第一和第二主电极(16:17),使得第一和第二主电极(16:17)分别与第 其他经由光接收区域; 堆叠在所述半导体层(14)上的绝缘层(13); 以及堆叠在所述绝缘层(13)上的辅助电极(12)包括以下步骤:在读取时间段(T1)和非易失性存储器件(T1)上向辅助电极(12)施加恒定偏压(-V11) 图像传感器的信号电流(ID)的读取时间段(T0); 施加到第一主电极(16)的驱动电压脉冲(-V10),通过该驱动电压脉冲(-V10)加速向半导体层(14)的载流子注入,以改变第一主电极(16)相对于辅助电极 (12)至少在信号电流(ID)的读取时间段(T0)期间; 并且仅在信号电流(ID)的读取时间段(T1)期间从第二主电极(17)导出信号电流(ID)。
    • 10. 发明公开
    • Ink-jet printer
    • 喷墨打印机
    • EP0728584A3
    • 1997-05-14
    • EP96301166.3
    • 1996-02-21
    • KABUSHIKI KAISHA TOSHIBA
    • Takayama, SatoshiKudo, NorikoSaitoh, ShirohIzumi, MamoruTanuma, Chiaki
    • B41J2/045B41J2/205
    • B41J2/14008B41J2002/14322
    • A driving circuit (106) controls a time for applying a drive signal to a piezoelectric element (101) so as to bring a change in the number of ink droplets squirted from a liquid surface of liquid ink (109) according to a gray scale level of an image to be printed on a printed object. According to application of the drive signal, ultrasonic beams emitted from a piezoelectric element array (101) are converged in an array direction, made incident to an acoustic lens (107) via an acoustic matching layer (105), further converged in a direction orthogonal to the array direction and converged in a vicinity of the liquid surface in a point form. In the vicinity of the liquid surface, an ink meniscus (111) is formed by means of pressure (discharging pressure) generated by the converged ultrasonic beams and then from a tip of the ink meniscus (111) an ink droplet according to the application time is squirted. The squirted ink droplet is flown and stuck to the printed object. By performing main and subscanning to the printed object, a two-dimensional image is printed thereon.
    • 驱动电路(106)控制向压电元件(101)施加驱动信号的时间,以便根据灰度等级水平改变从液体墨水(109)的液面喷射的墨滴的数量 要打印在打印对象上的图像。 根据驱动信号的施加,从压电元件阵列(101)发射的超声波束沿阵列方向会聚,经由声匹配层(105)入射到声透镜(107),进一步沿正交方向会聚 到阵列方向并以点形式会聚在液面附近。 在液面附近,由会聚的超声波束产生的压力(排出压力)形成墨弯月面(111),然后从墨弯月面(111)的尖端根据施加时间形成墨滴 被喷射。 喷出的墨滴飞溅并粘附到打印物体上。 通过对打印物体执行主扫描和副扫描,在其上打印二维图像。