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    • 4. 发明授权
    • Synchronization control circuit for TDMA cellular communication system
    • TDMA蜂窝通信系统的同步控制电路
    • US5379326A
    • 1995-01-03
    • US873830
    • 1992-04-27
    • Kenji NakaharaHiroyuki Kaneda
    • Kenji NakaharaHiroyuki Kaneda
    • H04B7/26H04L7/00
    • H04W56/001H04W92/10Y02B60/50
    • A synchronization control circuit applicable to a TDMA (Time Division Multiple Access) digital mobile communication system for controlling the transmission and reception time base of a mobile station on which the circuit is mounted. The synchronization control circuit includes a plurality of time base counter circuits each counting down standard clock pulses to generate a plurality of timing pulse sequences having time bases which are respectively associated with the cells of the system. All the time base counter circuits share a single counter controller which controls the writing and reading of counts out of the time base counter circuits. The counter controller selectively produces the outputs of one of the time base counter circuits as a timing pulse sequence. The synchronization control circuit, therefore, is small size and light weight and saves power.
    • 一种适用于TDMA(时分多址)数字移动通信系统的同步控制电路,用于控制安装电路的移动站的发送和接收时基。 同步控制电路包括多个时基计数器电路,每个时钟基准计数器电路逐个对准标准时钟脉冲,以产生具有分别与系统的单元相关联的时基的多个定时脉冲序列。 所有的时基计数器电路共享一个单个计数器控制器,它控制时基计数器电路中的计数的写入和读出。 计数器控制器选择性地产生一个时基计数器电路的输出作为定时脉冲序列。 因此,同步控制电路体积小,重量轻,节省电力。
    • 6. 发明授权
    • Positional error correction for color image forming apparatus
    • 彩色图像形成装置的位置误差校正
    • US6118463A
    • 2000-09-12
    • US042806
    • 1998-03-17
    • Youji HoukiKouichi KobayashiHiroji UchimuraMorihisa KawaharaTsutomu NagatomiHirofumi NakayasuHiroyuki KanedaTakeo KojimaKazuhiro TamadaAkihisa SotaMasao KonisiTakao SuganoYoshihiko Taira
    • Youji HoukiKouichi KobayashiHiroji UchimuraMorihisa KawaharaTsutomu NagatomiHirofumi NakayasuHiroyuki KanedaTakeo KojimaKazuhiro TamadaAkihisa SotaMasao KonisiTakao SuganoYoshihiko Taira
    • B41J11/42B41J2/44B41J2/45B41J2/455B41J2/525B41J29/38G03G15/01G03G21/14H04N1/29H04N1/50G03G15/00
    • H04N1/506
    • An image forming apparatus includes a transport mechanism transporting a recording medium on a belt which is transported at a constant speed in a transport direction, a plurality of electrostatic recording units arranged in the transport direction of the recording medium and transferring toner images of different colors, a positional error detecting part using the toner image of a reference color transferred by one of the electrostatic recording units as a reference image, and relatively detecting positional error information related to positional errors of the toner images of remaining colors transferred by the remaining electrostatic recording units with respect to the reference image, and a positional error correcting part relatively correcting the positional errors of the toner images transferred by the remaining electrostatic recording units based on the positional error information. The positional error detecting part includes a part for controlling the electrostatic recording units to transfer at least two resist marks on the belt at a scan starting end and a scan terminating end of the belt in a main scan direction which is perpendicular to the transport direction of the recording medium, with respect to each of the colors, and a second part, including a sensor detecting the resist marks, for detecting positional error quantities of the resist marks of each of the remaining colors with respect to the resist marks of the reference color based on detection times of the resist marks of reference color and the remaining colors.
    • 图像形成装置包括:传送机构,其将输送方向上以恒定速度输送的传送带传送到记录介质;多个静电记录单元,沿着记录介质的输送方向排列,并且转印不同颜色的调色剂图像; 使用由静电记录单元之一转印的参考颜色的调色剂图像作为参考图像的位置误差检测部分,以及与由剩余静电记录单元传送的剩余颜色的调色剂图像的位置误差有关的相对检测的位置误差信息 以及基于位置误差信息相对校正由剩余静电记录单元传送的调色剂图像的位置误差的位置误差校正部分。 位置误差检测部分包括用于控制静电记录单元的部分,以在扫描起始端和带的扫描终止端沿主扫描方向传送至少两个抗蚀剂标记,该主扫描方向垂直于传送方向 所述记录介质相对于每种颜色,以及第二部分,包括检测抗蚀剂标记的传感器,用于检测每个剩余颜色的抗蚀剂标记相对于参考颜色的抗蚀剂标记的位置误差量 基于参考颜色的抗蚀剂标记的检测时间和剩余的颜色。