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1.发明授权Disk recording checking method for determining if a disk is defective by the number of errors present 失效磁盘记录检查方法，用于根据存在的错误数确定磁盘是否有缺陷
公开(公告)号：US4958337A
公开(公告)日：1990-09-18
申请号：US344530
申请日：1989-04-28
申请人： Toshihiro Yamanaka , Nobuyuki Horie , Shozou Kobayashi , Toshihisa Deguchi , Takeshi Yamaguchi , Shigemi Maeda , Yoshiki Nishioka , Teruki Sugiura
发明人： Toshihiro Yamanaka , Nobuyuki Horie , Shozou Kobayashi , Toshihisa Deguchi , Takeshi Yamaguchi , Shigemi Maeda , Yoshiki Nishioka , Teruki Sugiura
CPC分类号： G11B20/1816 , G11B5/016
摘要： A disk recording checking method in which recording is performed on a disk having radially different recording tracks each divided circumferentially into a plurality of sectors. The method employs a continuous writing device for continuously writing data onto a predetermined number of the sectors, and a continuous checking device for checking the data, while continuously reading the data from the predetermined number of the sectors. The method utilized checks both the number of errors in each code sequence and the total number of errors in each sector to determine if the data in the sector is valid.
摘要翻译： 一种磁盘记录检查方法，其中在具有径向不同的记录磁道的磁盘上执行记录，每个记录磁道分别沿周向分成多个扇区。 该方法采用连续写入装置，用于将数据连续地写入预定数量的扇区;以及连续检查装置，用于在从预定数量的扇区连续读取数据的同时检查数据。 所使用的方法检查每个代码序列中的错误数量和每个扇区中的错误总数，以确定扇区中的数据是否有效。
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公开(公告)号：US5028927A
公开(公告)日：1991-07-02
申请号：US399961
申请日：1989-08-29
CPC分类号： G11B20/10203 , G11B20/10009 , H03K5/084
摘要： A signal processing device comprises a comparator, a first reference signal generating unit, a second reference signal generating unit and reference signal controller and switch which is switched when the data head data of the input signal is detected by the controller. In the case when the content of the input signal is a clock producing data, the reference signal generated in a rapid process of the first reference signal generating unit is entered in the comparator, and in the case when the content of the input signal is a reproduction data, the reference signal generated in a slow process of the second reference signal generating unit is entered in the comparator so as to be compared with the input signal.
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公开(公告)号：US5070285A
公开(公告)日：1991-12-03
申请号：US305406
申请日：1989-02-02
申请人： Daiji Yamane , Nobuyuki Horie , Aisaku Taguchi , Teruki Sugiura
发明人： Daiji Yamane , Nobuyuki Horie , Aisaku Taguchi , Teruki Sugiura
摘要： A motor stop control device for stopping a motor rapidly. The motor control includes a pulse generator for generating a pulse signal having a pulse width which is in relation to the speed of the motor, a CPU, and a drive for driving the motor. When a motor stop command signal is produced when the motor being rotated forward, CPU operates the drive to produce a counter drive torque, and, at the same time, CPU starts to compare the pulse width of the present pulse signal with that of the previous pulse signal, and produces a signal when the pulse width of the present pulse signal becomes shorter than that of the previous cycle. When the signal is produced, the drive stops to produces the counter drive torque.
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4.发明授权Apparatus for electrostatically forming a developer image on a conveyed recording medium including an array of control electrodes each having an optimized pitch 失效一种用于在传送的记录介质上静电形成显影剂图像的装置，包括各自具有优化间距的控制电极阵列
公开(公告)号：US6084613A
公开(公告)日：2000-07-04
申请号：US34388
申请日：1998-03-04
CPC分类号： B41J2/4155 , H04N1/295 , B41J2202/21 , G03G2217/0025
摘要： The array pitch `d` between the control electrode strips with respect to the conveyed direction of the recording medium is determined based on the order of applying operating voltage, the resolution `x` of the image with respect to the conveyed direction, and the number `m` of the control electrode strips. Illustratively, in order to obtain a particular resolution `x` with respect to the conveyed direction of the paper, by taking into consideration the reduction in dot interval or conveyed distance by the conveyance of the recording paper, the array pitch `d` between the control electrode strips with respect to the conveyed direction of the recording medium is set as the dot distance produced when the paper is not moved, plus the above reduction. This can be written as d=(n+1/m)/x where n is a natural number.
摘要翻译： 控制电极条之间相对于记录介质传送方向的阵列间距“d”基于施加工作电压，图像相对于传送方向的分辨率“x”的顺序和数字 “m”的控制电极条。 示例性地，为了通过考虑通过记录纸的传送减小点间隔或传送的距离，为了获得关于纸张的传送方向的特定分辨率“x”，在记录纸的传送之间的阵列间距“d” 相对于记录介质的输送方向的控制电极条被设定为当纸张不移动时产生的点距离加上述减少。 这可以写成d =（n + 1 / m）/ x，其中n是自然数。
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