公开(公告)号：US07394748B2

公开(公告)日：2008-07-01

申请号：US11705939

申请日：2007-02-14

申请人： Masaaki Tsuji ,  Ryohsuke Sugiyama

发明人： Masaaki Tsuji ,  Ryohsuke Sugiyama

IPC分类号： G11B7/00

CPC分类号： G11B7/0045 ,  G11B20/14 ,  G11B20/18

摘要： An optical disk recording apparatus includes a first comparator, a second comparator, a third comparator, a selection circuit, a control voltage generator, a voltage control oscillator, and a control circuit. The first comparator compares frequency-divided signals to output an error signal. The second and third comparators compare a signal pre-recorded on an optical disk and the frequency-divided signal to output an error signal and a frequency differential signal. The selection circuit selects any one of the error signals to output the signal selected. The control voltage generator generates a control voltage from the signal from the selection circuit. The voltage control oscillator generates and outputs the write reference clock signal having a frequency corresponding to the control voltage from the control voltage generator. The control circuit controls operations of the selection circuit according to the frequency differential signals.

摘要翻译： 光盘记录装置包括第一比较器，第二比较器，第三比较器，选择电路，控制电压发生器，压控振荡器和控制电路。 第一比较器比较分频信号以输出误差信号。 第二和第三比较器将预先记录在光盘上的信号和分频信号进行比较，以输出误差信号和频率差分信号。 选择电路选择任何一个误差信号来输出所选择的信号。 控制电压发生器根据来自选择电路的信号产生控制电压。 电压控制振荡器产生并输出具有对应于来自控制电压发生器的控制电压的频率的写入基准时钟信号。 控制电路根据频率差信号控制选择电路的动作。

公开(公告)号：US20070147203A1

公开(公告)日：2007-06-28

申请号：US11705939

申请日：2007-02-14

申请人： Masaaki Tsuji ,  Ryohsuke Sugiyama

发明人： Masaaki Tsuji ,  Ryohsuke Sugiyama

IPC分类号： G11B20/10

CPC分类号： G11B7/0045 ,  G11B20/14 ,  G11B20/18

摘要： An optical disk recording apparatus includes a first comparator, a second comparator, a third comparator, a selection circuit, a control voltage generator, a voltage control oscillator, and a control circuit. The first comparator compares frequency-divided signals to output an error signal. The second and third comparators compare a signal pre-recorded on an optical disk and the frequency-divided signal to output an error signal and a frequency differential signal. The selection circuit selects any one of the error signals to output the signal selected. The control voltage generator generates a control voltage from the signal from the selection circuit. The voltage control oscillator generates and outputs the write reference clock signal having a frequency corresponding to the control voltage from the control voltage generator. The control circuit controls operations of the selection circuit according to the frequency differential signals.

公开(公告)号：US20050196192A1

公开(公告)日：2005-09-08

申请号：US11036044

申请日：2005-01-18

申请人： Shigenori Morimoto ,  Takahiro Fukunaga ,  Ryohsuke Sugiyama ,  Tatsuya Ogawa ,  Haruo Sayama

发明人： Shigenori Morimoto ,  Takahiro Fukunaga ,  Ryohsuke Sugiyama ,  Tatsuya Ogawa ,  Haruo Sayama

IPC分类号： G03G15/00 ,  H05K5/02

CPC分类号： G03G21/1619

摘要： Provided is an image forming apparatus support structure which permits improvements in both strength and dimensional accuracy, and which can also accommodate increases in size. Because respective coupling member(s) and steel channel of respective post member(s) may be sequentially and individually connected, it is possible to improve support structure dimensional accuracy, it being possible to assemble support structure(s) such that deviation(s) in the respective coupling member(s) and the respective post member(s) offset(s) one another. Furthermore, steel channel is suitable for supporting load(s) in vertical direction(s). Moreover, respective coupling member(s) may serve as brace(s) when interposed between respective post members. Where this is the case, strength of the overall support structure may be made extremely high, and strain exhibited by the overall support structure may be reduced.

摘要翻译： 提供了一种图像形成装置支撑结构，其允许改进强度和尺寸精度，并且还可以适应尺寸的增加。 由于相应的支柱构件的相应的联接构件和钢通道可以顺序地和单独地连接，所以可以改进支撑结构的尺寸精度，可以组装支撑结构，使得偏差 在相应的联接构件和相应的柱构件中彼此偏移。 此外，钢通道适用于在垂直方向上支撑负载。 此外，相应的联接构件可以在相应的柱构件之间插入时用作支架。 在这种情况下，总体支撑结构的强度可能变得非常高，并且整个支撑结构的应变可能会降低。

公开(公告)号：US07274893B2

公开(公告)日：2007-09-25

申请号：US11036044

申请日：2005-01-18

申请人： Shigenori Morimoto ,  Takahiro Fukunaga ,  Ryohsuke Sugiyama ,  Tatsuya Ogawa ,  Haruo Sayama

发明人： Shigenori Morimoto ,  Takahiro Fukunaga ,  Ryohsuke Sugiyama ,  Tatsuya Ogawa ,  Haruo Sayama

IPC分类号： G03G15/00 ,  A47B37/00

CPC分类号： G03G21/1619

摘要： Provided is an image forming apparatus support structure which permits improvements in both strength and dimensional accuracy, and which can also accommodate increases in size. Because respective coupling member(s) and steel channel of respective post member(s) may be sequentially and individually connected, it is possible to improve support structure dimensional accuracy, it being possible to assemble support structure(s) such that deviation(s) in the respective coupling member(s) and the respective post member(s) offset(s) one another. Furthermore, steel channel is suitable for supporting load(s) in vertical direction(s). Moreover, respective coupling member(s) may serve as brace(s) when interposed between respective post members. Where this is the case, strength of the overall support structure may be made extremely high, and strain exhibited by the overall support structure may be reduced.

摘要翻译： 提供了一种图像形成装置支撑结构，其允许改进强度和尺寸精度，并且还可以适应尺寸的增加。 由于相应的支柱构件的相应的联接构件和钢通道可以顺序地和单独地连接，所以可以改进支撑结构的尺寸精度，可以组装支撑结构，使得偏差 在相应的联接构件和相应的柱构件中彼此偏移。 此外，钢通道适用于在垂直方向上支撑负载。 此外，相应的联接构件可以在相应的柱构件之间插入时用作支架。 在这种情况下，总体支撑结构的强度可能变得非常高，并且整个支撑结构的应变可能会降低。

公开(公告)号：US07054251B2

公开(公告)日：2006-05-30

申请号：US10800559

申请日：2004-03-15

申请人： Ryohsuke Sugiyama

发明人： Ryohsuke Sugiyama

IPC分类号： G11B7/00

CPC分类号： G11B7/0045

摘要： A write pulse generator is provided with an adjusting section which adjusts a width of write pulses to be generated, a plurality of registers in which control values of adjusting made by the adjusting section are set, a selecting section which selects a control value from the registers and supplies the control value to the adjusting section, and a timing generator. The registers are successively arranged in a plurality of stages so that the control values are successively copied to the registers in subsequent stages. The timing generator generates timings at which the control values are successively copied to the registers in the subsequent stages. The selecting section selects and supplies to the adjusting section the control value held by a register in a final stage.

公开(公告)号：US06735159B2

公开(公告)日：2004-05-11

申请号：US10196432

申请日：2002-07-15

申请人： Ryohsuke Sugiyama

发明人： Ryohsuke Sugiyama

IPC分类号： G11B700

CPC分类号： G11B7/0045

摘要： A write pulse generator is provided with an adjusting section which adjusts a width of write pulses to be generated, a plurality of registers in which control values of adjusting made by the adjusting section are set, a selecting section which selects a control value from the registers and supplies the control value to the adjusting section, and a timing generator. The registers are successively arranged in a plurality of stages so that the control values are successively copied to the registers in subsequent stages. The timing generator generates timings at which the control values are successively copied to the registers in the subsequent stages. The selecting section selects and supplies to the adjusting section the control value held by a register in a final stage.

公开(公告)号：US07200082B2

公开(公告)日：2007-04-03

申请号：US10723359

申请日：2003-11-25

申请人： Tsuji Masaaki ,  Ryohsuke Sugiyama

发明人： Tsuji Masaaki ,  Ryohsuke Sugiyama

IPC分类号： G11B7/00

CPC分类号： G11B7/0045 ,  G11B20/14 ,  G11B20/18

摘要： An optical disk recording apparatus includes a first comparator, a second comparator, a third comparator, a selection circuit, a control voltage generator, a voltage control oscillator, and a control circuit. The first comparator compares frequency-divided signals to output an error signal. The second and third comparators compare a signal pre-recorded on an optical disk and the frequency-divided signal to output an error signal and a frequency differential signal. The selection circuit selects any one of the error signals to output the signal selected. The control voltage generator generates a control voltage from the signal from the selection circuit. The voltage control oscillator generates and outputs the write reference clock signal having a frequency corresponding to the control voltage from the control voltage generator. The control circuit controls operations of the selection circuit according to the frequency differential signals.

摘要翻译： 光盘记录装置包括第一比较器，第二比较器，第三比较器，选择电路，控制电压发生器，压控振荡器和控制电路。 第一比较器比较分频信号以输出误差信号。 第二和第三比较器将预先记录在光盘上的信号和分频信号进行比较，以输出误差信号和频率差分信号。 选择电路选择任何一个误差信号来输出所选择的信号。 控制电压发生器根据来自选择电路的信号产生控制电压。 电压控制振荡器产生并输出具有与来自控制电压发生器的控制电压对应的频率的写入基准时钟信号。 控制电路根据频率差信号控制选择电路的动作。