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    • 38. 发明申请
    • COMMUNICATION SYSTEM IN TRAINS
    • 火车通讯系统
    • US20080237406A1
    • 2008-10-02
    • US12019048
    • 2008-01-24
    • Nao SaitoSetsuo AritaSatoru ItoKazunori AyabeYukio Sagawa
    • Nao SaitoSetsuo AritaSatoru ItoKazunori AyabeYukio Sagawa
    • B61L25/02B61D37/00
    • B61D49/00B61L15/0036B61L15/009
    • A communication system in trains comprises a control data communication device 400 and an image data communication device 300 installed in each of the cars. The control data communication device 400 transmits train operation information, train location information, control instructions of train-mounted apparatuses, and the like. The image data communication device 300 transmits image information such as moving images and still images, audio information such as in-train announcement, textual information for caption display, and operation log information of apparatuses, which form the contents, to a display unit 200 installed in each of the cars and to apparatuses 500 such as a telephone. The display unit 200 switches the display on the screen in accordance with train control information transmitted from the control data communication device 400 through the image data communication device 300.
    • 列车中的通信系统包括控制数据通信设备400和安装在每个轿厢中的图像数据通信设备300。 控制数据通信装置400发送列车运行信息,列车位置信息,列车装置的控制指令等。 图像数据通信装置300将形成内容的诸如运动图像和静止图像的图像信息,诸如列车内公告的音频信息,字幕显示的文本信息和装置的操作日志信息发送到安装的显示单元200 在每个汽车中以及诸如电话的设备500。 显示单元200根据从控制数据通信设备400通过图像数据通信设备300发送的列车控制信息来切换屏幕上的显示。
    • 39. 发明申请
    • LED driver circuit
    • LED驱动电路
    • US20070188426A1
    • 2007-08-16
    • US11351925
    • 2006-02-10
    • Satoru ItoSeijun Nishimura
    • Satoru ItoSeijun Nishimura
    • G09G3/32
    • G09G3/3291
    • Disclosed is an LED driver circuit that can suitably detect a minimum voltage and can be produced at low cost. A selector circuit is comprised of a comparator C, an inverter I and analogue switches. A minimum voltage selecting circuit can be constructed by causing the selector circuit and a circuit constructed in the same manner as the selector circuit is done, to be combined with each other. Therefore, the minimum voltage selecting circuit can be comprised of active devices that comprise only p-MOSFETs and n-MOSFETs. Moreover, as a semiconductor process structure, there may be employed a so-called single WELL structure in which a WELL is not formed in another WELL. The LED driver circuit is formed at low cost.
    • 公开了可以适当地检测最低电压并且可以以低成本生产的LED驱动器电路。 选择器电路由比较器C,反相器I和模拟开关组成。 可以通过使选择器电路和以与选择器电路相同的方式构成的电路彼此组合来构造最小电压选择电路。 因此,最小电压选择电路可以由仅包括p-MOSFET和n-MOSFET的有源器件组成。 此外,作为半导体工艺结构,可以采用所谓的单个WELL结构,其中在另一个WELL中不形成WELL。 LED驱动器电路以低成本形成。