公开(公告)号：US4802159A

公开(公告)日：1989-01-31

申请号：US917188

申请日：1986-10-09

申请人： Tadao Nagai ,  Hirohisa Yamaguchi ,  Akira Mashimo

发明人： Tadao Nagai ,  Hirohisa Yamaguchi ,  Akira Mashimo

IPC分类号： G11B27/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/09 ,  H04N5/92 ,  H04N9/835 ,  G11B7/013 ,  H04N5/84 ,  H04N9/89

CPC分类号： H04N9/8355 ,  G11B7/004 ,  G11B7/0938 ,  H04N5/9201

摘要： An information recording disc has a control signal such as an address signal pre-recorded on a guide track which is pre-formed on the information recording disc at a position different from a track position where an information signal is to be recorded. An information signal recording apparatus for recording the information signal on such an information recording disc controls a rotation frequency of the information recording disc to a constant rotation frequency by locking a horizontal synchronizing signal within a composite video signal to edges of pulses reproduced from the guide track, and the information signal is recorded on the information recording disc so that a recording interval of the control signal is positioned within a vertical blanking period of the information signal at least including the composite video signal.

摘要翻译： 信息记录盘具有诸如预先记录在导轨上的地址信号的控制信号，该导轨在信息记录盘上预先形成在与要记录信息信号的轨道位置不同的位置处。 用于在这种信息记录盘上记录信息信号的信息信号记录装置通过将复合视频信号内的水平同步信号锁定在从导轨再现的脉冲的边缘上来将信息记录盘的旋转频率控制在恒定的旋转频率 并且信息信号被记录在信息记录盘上，使得控制信号的记录间隔位于至少包括复合视频信号的信息信号的垂直消隐期内。

公开(公告)号：US4864423A

公开(公告)日：1989-09-05

申请号：US272769

申请日：1988-11-17

申请人： Tadao Nagai ,  Hirohisa Yamaguchi ,  Akira Mashimo

发明人： Tadao Nagai ,  Hirohisa Yamaguchi ,  Akira Mashimo

IPC分类号： G11B27/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/09 ,  H04N5/92 ,  H04N9/835

CPC分类号： H04N9/8355 ,  G11B7/004 ,  G11B7/0938 ,  H04N5/9201

摘要： An information recording disc has a control signal such as an address signal pre-recorded on a guide track which is pre-formed on the information recording disc at a position different from a track position where an information signal is to be recorded. An information signal recording apparatus for recording the information signal on such an information recording dics controls a rotation frequency of the information recording disc to a constant rotation frequency by locking a horizontal synchronizing signal within a composite video signal to edges of pulses reproduced from the guide track, and the information signal is recorded on the information recording disc so that a recording interval of the control signal is positioned within a vertical blanking period of the information signal at least including the composite video signal.

摘要翻译： 信息记录盘具有诸如预先记录在导轨上的地址信号的控制信号，该导轨在信息记录盘上预先形成在与要记录信息信号的轨道位置不同的位置处。 用于在这种信息记录装置上记录信息信号的信息信号记录装置通过将复合视频信号内的水平同步信号锁定在从导轨再现的脉冲的边缘上来控制信息记录盘的旋转频率到恒定的旋转频率 并且信息信号被记录在信息记录盘上，使得控制信号的记录间隔位于至少包括复合视频信号的信息信号的垂直消隐期内。

公开(公告)号：US4803677A

公开(公告)日：1989-02-07

申请号：US873407

申请日：1986-06-12

申请人： Hirohisa Yamaguchi ,  Horoshi Usami ,  Tadao Nagai ,  Akira Mashimo

发明人： Hirohisa Yamaguchi ,  Horoshi Usami ,  Tadao Nagai ,  Akira Mashimo

IPC分类号： G11B7/09 ,  G11B7/007 ,  G11B7/095

CPC分类号： G11B7/0909 ,  G11B7/0903 ,  G11B7/0938

摘要： A disc comprises a recording surface which is divided into a plurality of equiangular sectoral regions and a guide track formed on the recording surface. Each track turn of the guide track is constituted by a row of pits formed in every other equiangular sectoral regions, and the pit is only formed in one of two mutually adjacent track turns of the guide track in each equiangular sectoral region so that the pits are formed in every other track turns in a radial direction of the disc in each equiangular sectoral region. An apparatus for playing the disc comprises a circuit for producing a switching pulse signal having a period dependent on a period of the pits of the guide track based on signals which are reproduced from the two mutually adjacent track turns by sub light beams, a circuit for alternately inverting a polarity of signals which are reproduced from the two mutually adjacent track turns by a main light beam for every one half period of the switching pulse signal and for generating a tracking error signal, a tracking device, and a device for recording and reproducing an information signal on and from an intermediate part of the disc between the two mutually adjacent track turns.

摘要翻译： 盘包括记录表面，该记录表面被分成多个等角扇形区域和形成在记录表面上的导轨。 导轨的每个轨道转弯由形成在每个其他等角部分区域中的一排凹坑构成，并且凹坑仅形成在每个等角扇形区域中的导轨的两个相互相邻的轨道匝之一中，使得凹坑 在每个其他轨道中形成的每个等角部分区域中的圆盘的径向方向。 用于播放光盘的装置包括：电路，用于产生具有取决于导轨的凹坑的周期的周期的切换脉冲信号，所述周期基于通过副光束从两个相互相邻的轨道匝再现的信号， 在切换脉冲信号的每半个周期，通过主光束交替地反转从两个相互相邻的轨道匝再现的信号的极性，并产生跟踪误差信号，跟踪装置和用于记录和再现的装置 在两个相互相邻的轨道匝之间的来自盘的中间部分的信息信号。

公开(公告)号：US4754339A

公开(公告)日：1988-06-28

申请号：US929605

申请日：1986-11-10

申请人： Tadao Nagai ,  Hirohisa Yamaguchi ,  Akira Mashimo

发明人： Tadao Nagai ,  Hirohisa Yamaguchi ,  Akira Mashimo

IPC分类号： G11B20/12 ,  G11B7/09 ,  G11B27/19 ,  G11B27/24 ,  G11B27/32 ,  H04N9/82 ,  H04N9/83 ,  H04N9/79 ,  G11B7/013 ,  H04N5/85

CPC分类号： H04N9/8205 ,  G11B27/19 ,  G11B27/24 ,  G11B27/322 ,  G11B7/0938 ,  H04N9/8222 ,  H04N9/83 ,  G11B2220/20

摘要： An information recording disc comprises a guide track, an address signal recording portion arranged in each track turn of the guide track and pre-recorded with an address signal, and a pseudo address signal recording portion arranged in each track turn of the guide track adjacent a corresponding address signal recording portion provided in a track turn of the guide track adjacent thereto. The recording length of the pseudo address signal recording portion is selected approximately equal to the recording length of the corresponding address signal recording portion.

摘要翻译： 信息记录盘包括导轨，布置在导轨的每个轨道转弯中并预先记录有地址信号的地址信号记录部分，以及布置在导轨的每个轨道转弯中的伪地址信号记录部分， 相应的地址信号记录部分设置在与其相邻的导轨的轨道转弯中。 选择伪地址信号记录部分的记录长度大约等于相应地址信号记录部分的记录长度。

公开(公告)号：US4958234A

公开(公告)日：1990-09-18

申请号：US259152

申请日：1988-10-18

申请人： Hirohisa Yamaguchi ,  Akira Mashimo

发明人： Hirohisa Yamaguchi ,  Akira Mashimo

IPC分类号： G11B20/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B20/06 ,  H04N9/79

CPC分类号： G11B7/004 ,  H04N9/7912

摘要： A distortion eliminating circuit for eliminating a harmonic distortion from an input frequency modulated luminance signal comprises a comparator for producing a series of output pulses responsive to the input frequency modulated luminance signal by comparing the level of the frequency modulated luminance signal with a predetermined level, a filtering circuit for extracting a d.c. component from the series of output pulses by filtering out oscillating components from said output pulses, a detecting circuit for extracting a d.c. distortion component corresponding to the harmonic distortion in the input frequency modulated luminance signal by comparing the level of the d.c. component by a reference level, and a level adjusting circuit for adjusting the level of the input frequency modulated luminance signal by adding or subtracting the d.c. distortion component to the input frequency modulated luminance signal and for supplying the input frequency modulated luminance signal having a level now thus adjusted to the comparator.

摘要翻译： 用于从输入调频亮度信号中消除谐波失真的失真消除电路包括：比较器，用于通过将调频亮度信号的电平与预定电平进行比较来产生响应输入调频亮度信号的一系列输出脉冲; 用于提取直流的滤波电路 通过滤出来自所述输出脉冲的振荡分量的一系列输出脉冲的分量，用于提取直流电压的检测电路。 通过比较直流电平的水平，输入调制亮度信号中的谐波失真对应的失真分量。 分量乘以参考电平;以及电平调整电路，用于通过加或减去直流电平来调节输入调频亮度信号的电平。 失真分量到输入调制亮度信号，并用于提供具有如此调整到比较器的电平的输入调频亮度信号。

公开(公告)号：US4841504A

公开(公告)日：1989-06-20

申请号：US73979

申请日：1987-07-14

申请人： Hirohisa Yamaguchi ,  Akira Mashimo

发明人： Hirohisa Yamaguchi ,  Akira Mashimo

IPC分类号： G11B20/02 ,  G11B19/02 ,  G11B27/026 ,  G11B27/10 ,  G11B27/22 ,  G11B27/32 ,  G11B27/36

CPC分类号： G11B19/02 ,  G11B27/026 ,  G11B27/22 ,  G11B27/322 ,  G11B27/36 ,  G11B2220/20

摘要： A method and apparatus for assembling an information signal on a rotary recording medium comprising a pre-recorded track recorded with pre-recorded information signals and an unrecorded track not recorded with information signals by use of a light beam in which an information signal to be newly recorded on the rotary recording medium is recorded continuously from the pre-recorded information signal already recorded on the pre-recorded track. The apparatus by use of a light beam searches for a pre-recorded track turn which is a portion of the pre-recorded track immediately preceding the unrecorded track and continuously reproduces the information signal from the searched pre-recorded track turn as it waits for a command signal commanding the recording of the information signal to be recorded. Responsive to the command signal, the apparatus terminates the repetition of the reproducing operation of the searched track turn and commences the recording on the unrecorded track turn following the searched pre-recorded track turn.

摘要翻译： 一种用于在旋转记录介质上组装信息信号的方法和装置，包括利用其中新信息信号的光束记录有预先记录的信息信号的预记录磁道和未被记录有信息信号的未记录磁道 从已经记录在预先记录的轨道上的预先记录的信息信号连续地记录在旋转记录介质上。 通过使用光束的装置搜索预先记录的轨道转弯，其是紧接在未记录轨道之前的预先记录的轨道的一部分，并且在等待的情况下从所搜索的预先记录的轨道转弯中连续再现信息信号 指令要记录的信息信号的记录。 响应于命令信号，设备终止重复所搜索的轨道转弯的再现操作，并且在搜索到的预先记录的轨道转弯之后开始在未记录的轨道上的记录。

公开(公告)号：US07599262B2

公开(公告)日：2009-10-06

申请号：US11493462

申请日：2006-07-25

申请人： Akira Mashimo

发明人： Akira Mashimo

IPC分类号： G11B7/00

CPC分类号： G11B7/0053 ,  G11B7/24082 ,  G11B20/10 ,  G11B20/14 ,  G11B27/24 ,  G11B2220/2541

摘要： To detect an MSK modulation mark from an MSK-modulated wobble signal without fail. A wobble signal of an optical disk is supplied to an address decoding circuit. The address decoding circuit performs exclusive-OR operation of a binarized wobble signal and a reference clock signal generated from the wobble signal by an PLL circuit, to thus compute a proportion of the exclusive-OR result assuming a value of one every half period of a reference clock signal. When there are continuously present a predetermined number of sections or more where a proportion becomes a predetermined threshold proportion or more, the sections are detected as an MSK modulation mark. A system controller changes the threshold proportion in accordance with crosstalk from an adjacent track.

摘要翻译： 从MSK调制的摆动信号中检测出MSK调制标记，而不会失败。 光盘的摆动信号被提供给地址解码电路。 地址解码电路通过PLL电路进行二进制摆动信号和由摆动信号产生的参考时钟信号的异或运算，从而计算出异或结果的比例，假设每半个周期的值为1 参考时钟信号。 当连续存在预定数量的部分或更多部分，其中比例成为预定阈值比例或更多时，这些部分被检测为MSK调制标记。 系统控制器根据来自相邻轨道的串扰改变阈值比例。

公开(公告)号：US07245579B2

公开(公告)日：2007-07-17

申请号：US10877537

申请日：2004-06-25

申请人： Akira Mashimo

发明人： Akira Mashimo

IPC分类号： G11B7/24 ,  G11B5/09

CPC分类号： G11B27/24 ,  G11B7/0053 ,  G11B7/00718 ,  G11B7/24082 ,  G11B2220/216 ,  G11B2220/2545 ,  G11B2220/2575

摘要： A high-definition optical disk and a high-definition optical disk drive, which record data on lands and grooves. Wobbles are formed in grooves and lands of an optical disk, and address information is embedded in the wobbles. The wobbles are formed so as to become in phase with each other in the grooves. An address of the land sandwiched between the grooves is detected from the wobble of the groove. When the wobble of the land is not an in-phase wobble but is of opposite phase, a gray code of the wobble is substituted with a binary address such that 0 is achieved when the gray code is converted into the binary address. As a result, even in the case of the wobble of opposite phase, the address information about the land is made coincident with address information about an inner-radius-side adjacent groove, thereby determining address information about the land.

摘要翻译： 高分辨率光盘和高清晰度光盘驱动器，用于在陆地和凹槽上记录数据。 摇摆形成在光盘的凹槽和平台中，并且地址信息嵌入在摆动中。 摆动形成为在槽中彼此同相。 从槽的摆动中检测出夹在槽之间的地面的地址。 当地面的摆动不是同相摆动但是具有相反相位时，摆动的灰色代码被二进制地址替换，使得当灰度代码被转换成二进制地址时，实现0。 结果，即使在相反的摆动的情况下，关于陆地的地址信息与关于内半径侧相邻槽的地址信息一致，从而确定关于陆地的地址信息。

公开(公告)号：US07212486B2

公开(公告)日：2007-05-01

申请号：US10283802

申请日：2002-10-29

申请人： Akira Mashimo ,  Keishi Ueno

发明人： Akira Mashimo ,  Keishi Ueno

IPC分类号： G11B7/00

CPC分类号： G11B7/0053 ,  G11B7/00745 ,  G11B7/24082

摘要： In this optical disk device, a reflected light of a light beam reflected from a pre-pit-formed side of a track wobbled on a disk is detected as a first detection signal. A reflected light of the light beam reflected from the other side of the track is detected as a second detection signal. The first detection signal and/or the second detection signal are/is amplified with a gain(s) so set that a peak value of a wobble signal component of the first detection signal coincides with a bottom value of a wobble signal component of the second detection signal.

摘要翻译： 在该光盘装置中，检测从摆动在盘上的轨道的预制坑形成侧反射的光束的反射光作为第一检测信号。 从轨道的另一侧反射的光束的反射光被检测为第二检测信号。 第一检测信号和/或第二检测信号被放大，使得第一检测信号的摆动信号分量的峰值与第二检测信号的摆动信号分量的底值一致， 检测信号。

公开(公告)号：US20060018230A1

公开(公告)日：2006-01-26

申请号：US11185647

申请日：2005-07-19

申请人： Akira Mashimo

发明人： Akira Mashimo

IPC分类号： G11B7/00

CPC分类号： G11B20/1833 ,  G11B7/0053

摘要： An optical disk device which drives HD-DVD or the like. In an HD-DVD type optical disk, address information is embedded in four wobble waves having the same phase. A wobble signal is detected by an optical pickup and demodulated by an address decoding circuit. The address decoding circuit detects an amount of phase difference of the wobble signal. The system controller sets an error flag in a bit in which the detected amount of phase difference exceeds a predetermined range. When a reading error is determined by means of CRC or the like, bit data replacement is performed with regard to the bit in which an error flag has been set, thereby correcting the error.