公开(公告)号：US20060209621A1

公开(公告)日：2006-09-21

申请号：US10548181

申请日：2004-03-17

申请人： Hitoshi Andoh ,  Naoki Yumiyama

发明人： Hitoshi Andoh ,  Naoki Yumiyama

IPC分类号： G11C13/04

CPC分类号： G11B7/094 ,  G11B7/0943

摘要： An optical disc recording/reproducing apparatus is provided which can obtain the best recording quality. Data is recorded while tracking is displaced by gradually supplying an offset voltage (deviation value) to a tracking error signal, and then reproduction is performed on a recording area. The jitter value (reading state of address information) of biphase data generated from a reproduction RF signal is detected by a biphase jitter detector (20). Further, on the basis of the offset voltage value (tracking deviation) supplied to the tracking error signal and the detected jitter value of the biphase data, a CPU (14) determines an offset voltage value where the biphase data has the minimum jitter value, as a tracking deviation for obtaining the best reading state of data, and records the offset voltage value in memory (15).

摘要翻译： 提供了能够获得最佳记录质量的光盘记录/再现装置。 通过逐渐向跟踪误差信号提供偏移电压（偏差值）来移位跟踪，然后在记录区域上执行再现来记录数据。 由双相抖动检测器（20）检测从再生RF信号生成的双相数据的抖动值（地址信息的读取状态）。 此外，CPU（14）基于提供给跟踪误差信号的偏移电压值（跟踪偏差）和检测到的双相数据的抖动值，确定双相数据具有最小抖动值的偏移电压值， 作为获得数据的最佳读取状态的跟踪偏差，并将偏移电压值记录在存储器（15）中。

公开(公告)号：US20070206454A1

公开(公告)日：2007-09-06

申请号：US11547252

申请日：2005-04-08

申请人： Naoki Yumiyama

发明人： Naoki Yumiyama

IPC分类号： G11B7/00

CPC分类号： G11B7/094 ,  G11B7/0053 ,  G11B7/0945

摘要： There is provided an optical disc recording/reproduction device in which a tracking drive offset amount (21) is given to a tracking drive signal (19), a beam spot position irradiated on a photo-detector (7) is shifted by a servo controller (18), and by using an optical disc on which pits are recorded or not recorded, a CPU (16) detects some or all of the divided wobble signal balance, a lens error signal, a wobble jitter value, and an AYIP read error count. The CPU (16) causes a memory (17) to store at least one of the tracking drive offset amounts at which the wobble signal balance is uniform, the lens error signal reference voltage and wobble jitter value are minimum, and the AYIP read error count as well as the respective tracking drive offset amounts. Furthermore, the CPU (16) controls the beam spot position by adding the tracking drive offset amount read out from the memory (17) to the tracking drive signal (19) when performing recording or reproducing to/from the optical disc.

摘要翻译： 提供了一种光盘记录/再现装置，其中跟踪驱动偏移量（21）被赋予跟踪驱动信号（19），照射在光检测器（7）上的光束点位置被伺服控制器 （18），并且通过使用其上记录有凹坑或未记录凹坑的光盘，CPU（16）检测部分或全部划分的摆动信号平衡，透镜误差信号，摆动抖动值和AYIP读取误差 计数。 CPU（16）使存储器（17）存储摆动信号平衡均匀的跟踪驱动偏移量中的至少一个，镜头误差信号参考电压和摆动抖动值最小，并且AYIP读取误差计数 以及相应的跟踪驱动偏移量。 此外，当对光盘进行记录或再现时，CPU（16）通过将从存储器（17）读出的跟踪驱动偏移量与跟踪驱动信号（19）相加来控制光点位置。

公开(公告)号：US20080037404A1

公开(公告)日：2008-02-14

申请号：US11547287

申请日：2005-04-08

申请人： Naoki Yumiyama

发明人： Naoki Yumiyama

IPC分类号： G11B7/24 ,  G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0053 ,  G11B7/094

摘要： An optical disc recording/reproduction device is provided, in which a tracking drive offset amount (21) is given to a tracking drive signal (19), a beam spot position irradiated on a photo-detector (7) is shifted by a servo controller (18), and a CPU (16) detects a divided wobble signal balance being data-recorded. The CPU (16) causes a memory (17) to store the tracking drive offset amounts at which the wobble signal balance is uniform according to the wobble signal balance and the tracking drive offset amount. Further, the CPU (16) controls the beam spot position by adding the tracking drive offset amount read out from the memory (17) to the tracking drive signal (19) when performing recording or reproducing to/from the optical disc.

摘要翻译： 提供了一种光盘记录/再现装置，其中跟踪驱动偏移量（21）被赋予跟踪驱动信号（19），照射在光检测器（7）上的光束点位置被伺服控制器 （18），并且CPU（16）检测被数据记录的划分的摆动信号余量。 CPU（16）使得存储器（17）根据摆动信号平衡和跟踪驱动偏移量存储摆动信号平衡均匀的跟踪驱动偏移量。 此外，当对/从光盘执行记录或再现时，CPU（16）通过将从存储器（17）读出的跟踪驱动偏移量与跟踪驱动信号（19）相加来控制光点位置。

公开(公告)号：US20070195681A1

公开(公告)日：2007-08-23

申请号：US11631848

申请日：2005-07-14

申请人： Naoki Yumiyama

发明人： Naoki Yumiyama

IPC分类号： G11B7/00

CPC分类号： G11B20/10009 ,  G11B7/0053

摘要： An optical disc recording/reproducing apparatus capable of performing a stable reading of address information. A signal generating circuit for detecting a wobble signal based on a meander of the recording area of an optical disc, comprising a lowpass filter (LPF) (15) for passing therethrough only those lower parts of the frequencies of signals from a light receiving element of an optical pickup which are near a wobble signal band, or a bandpass filter (BPF) (16) for passing therethrough only those frequencies of the signals from the light receiving element which are within a predetermined range of a wobble signal frequency band, wherein the LPF (15) or BPF (16) is used to eliminate the affect of record pulses superimposed on the signals from the light receiving element, thereby reducing address information acquisition errors due to the affection of noise and hence obtaining a stable recording operation.

摘要翻译： 一种能够执行地址信息的稳定读取的光盘记录/再现装置。 一种信号发生电路，用于基于光盘的记录区域的曲折来检测摆动信号，该信号产生电路包括一个低通滤波器（LPF）（15），用于仅通过来自光接收元件的信号频率的那些下部 靠近摆动信号频带的光学拾取器或用于仅通过位于摆动信号频带的预定范围内的来自光接收元件的信号的那些频率的带通滤波器（BPF）（16），其中， LPF（15）或BPF（16）用于消除叠加在来自光接收元件的信号上的记录脉冲的影响，从而减少由噪声的影响引起的地址信息获取误差，从而获得稳定的记录操作。