专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07577069B2 Tilt control method and apparatus for optical disc recording and playback apparatus 失效
标题翻译：用于光盘记录和重放装置的倾斜控制方法和装置
公开(公告)号：US07577069B2
公开(公告)日：2009-08-18
申请号：US10706059
申请日：2003-11-12
申请人： Tsuyoshi Yamamoto , Toshihiko Hiroshima
发明人： Tsuyoshi Yamamoto , Toshihiko Hiroshima
IPC分类号： G11B7/09
CPC分类号： G11B7/0945 , G11B7/082 , G11B7/0956
摘要： An offset adjustment signal is recorded in a test recording area provided on the inner side of a disc while modifying the level of a driving signal for offset detection that is supplied to a tilt adjustment coil. Thereafter, an operation to play back the offset adjustment signal is performed, and a β value is detected from an RF signal that is played back. When a signal is recorded for which the detected β value reaches a maximum, the level of the driving signal supplied to the tilt adjustment coil is set as an offset value. Tilt control is then performed by adding the offset value to a tilt signal for performing tilt control.
摘要翻译：偏移调整信号被记录在设置在盘的内侧的测试记录区域中，同时修改提供给倾斜调节线圈的偏移检测用驱动信号的电平。此后，执行重放偏移调整信号的操作，并且从播放的RF信号中检测β值。当记录检测到的β值达到最大值的信号时，提供给倾斜调节线圈的驱动信号的电平被设置为偏移值。然后通过将偏移值添加到用于执行倾斜控制的倾斜信号来执行倾斜控制。

2. 发明授权

US07626906B2 Tilt control method and apparatus for optical disc recording and playback apparatus 失效
标题翻译：用于光盘记录和重放装置的倾斜控制方法和装置
公开(公告)号：US07626906B2
公开(公告)日：2009-12-01
申请号：US10697455
申请日：2003-10-30
申请人： Tsuyoshi Yamamoto , Toshihiko Hiroshima
发明人： Tsuyoshi Yamamoto , Toshihiko Hiroshima
IPC分类号： G11B7/09
CPC分类号： G11B7/0945 , G11B7/00736 , G11B7/094 , G11B7/0956
摘要： An offset adjustment signal is recorded in a test recording area provided on the inner side of a disc while modifying the level of a driving signal for offset detection that is supplied to a tilt adjustment coil. Thereafter, an operation to play back the offset adjustment signal is performed, and the peak level of an RF signal that is played back is detected. When a signal is recorded for which the detected peak level reaches a maximum, the level of the driving signal supplied to the tilt adjustment coil is set as an offset value. Tilt control is then performed by adding the offset value to a tilt signal for performing tilt control.
摘要翻译：偏移调整信号被记录在设置在盘的内侧的测试记录区域中，同时修改提供给倾斜调节线圈的偏移检测用驱动信号的电平。此后，执行回放偏移调整信号的操作，并且检测回放的RF信号的峰值电平。当记录检测到的峰值电平达到最大值的信号时，提供给倾斜调节线圈的驱动信号的电平被设置为偏移值。然后通过将偏移值添加到用于执行倾斜控制的倾斜信号来执行倾斜控制。

3. 发明授权

US07072263B2 Optical disc recording and playback apparatus 失效
标题翻译：光盘录放机
公开(公告)号：US07072263B2
公开(公告)日：2006-07-04
申请号：US10354499
申请日：2003-01-29
申请人： Yasushi Hanamoto , Toshihiko Hiroshima
发明人： Yasushi Hanamoto , Toshihiko Hiroshima
IPC分类号： G11B7/00
CPC分类号： G11B7/0946 , G11B7/0079
摘要： A pickup control circuit (5) for performing a control operation of an optical pickup (3) and an error detection circuit (14) for detecting an error signal from a servo signal obtained from the pickup control circuit (5) are provided. During an operation to change to a faster recording speed, a playback operation for an already recorded signal is performed at the recording speed after the change, and an error detection level is set on the basis of characteristics of the servo signal in the playback operation state.
摘要翻译：提供了一种用于执行光学拾取器（3）的控制操作的拾取控制电路（5）和用于从从拾取控制电路（5）获得的伺服信号中检测误差信号的误差检测电路（14）。在切换到更快的记录速度的操作期间，以改变之后的记录速度执行已经记录的信号的重放操作，并且基于重放操作状态中的伺服信号的特性来设置错误检测水平。

4. 发明授权

US07184379B2 Optical disk recording/reproducing method and apparatus in which recording properties of the disk are detected when recording speed is changed 失效
标题翻译：当记录速度改变时检测到盘的记录特性的光盘记录/再现方法和装置
公开(公告)号：US07184379B2
公开(公告)日：2007-02-27
申请号：US10080994
申请日：2002-02-20
申请人： Akira Tsukihashi , Toru Tanaka , Yasushi Hanamoto , Shinji Seki , Toshihiko Hiroshima , Yutaka Imamura
发明人： Akira Tsukihashi , Toru Tanaka , Yasushi Hanamoto , Shinji Seki , Toshihiko Hiroshima , Yutaka Imamura
IPC分类号： G11B7/0045
CPC分类号： G11B20/10527 , G11B19/00 , G11B2020/10685 , G11B2020/10703 , G11B2020/10731 , G11B2020/1074 , G11B2020/10814
摘要： An operation for recording a recording signal onto a disk (1) is interrupted, when an amount of signal data stored in a buffer RAM (11) for temporarily storing the recording signal is less than an interruption setting value during performing of the recording operation. Moreover, when the amount of signal data stored in the buffer RAM (11) increases and indicates a resumption setting value, the signal recorded on the disk (1) before interruption is reproduced, and the recording operation is resumed based on the reproduced signal. Moreover, recording properties are detected by the signal reproduced before resumption of recording.
摘要翻译：当在执行记录操作期间存储在用于临时存储记录信号的缓冲RAM（11）中的信号数据量小于中断设置值时，用于将记录信号记录在盘（1）上的操作被中断。此外，当存储在缓冲RAM（11）中的信号数据的量增加并且指示恢复设置值时，再现在中断之前记录在盘（1）上的信号，并且基于再现信号重新开始记录操作。此外，通过在恢复记录之前再现的信号来检测记录属性。

5. 发明授权

US06356520B1 Disk storage device 有权
标题翻译：磁盘存储设备
公开(公告)号：US06356520B1
公开(公告)日：2002-03-12
申请号：US09714021
申请日：2000-11-16
申请人： Yasushi Hanamoto , Toshihiko Hiroshima
发明人： Yasushi Hanamoto , Toshihiko Hiroshima
IPC分类号： G11B700
CPC分类号： G11B7/126 , G11B7/0045
摘要： Additional recording data is written continuously with data already recorded on a disk and writing of additional data is started in synch with recorded data. The optical head 1 reads data recorded on the disk just before recording is halted every time the record decision unit 22 judges that recording is to be halted. The record-status detection unit 25 detects the formation status of the recorded data. The head output control unit 14 sets the luminous output of the optical head 1 at the beginning of additional writing according to the recording state judged by the record-state detection unit 25. Thus, the formation status of data recorded on a disk is detected to allow the luminous output of the optical head 1 to be set to an optimum record level.
摘要翻译：附加记录数据与已经记录在磁盘上的数据连续写入，附加数据的写入与记录的数据同步开始。每当记录决定单元22判断记录被停止时，光头1就在记录停止之前读取记录在盘上的数据。记录状态检测单元25检测记录数据的形成状态。磁头输出控制单元14根据由记录状态检测单元25判断的记录状态，在附加写入开始时设置光头1的发光输出。因此，记录在磁盘上的数据的形成状态被检测为允许将光学头1的发光输出设定为最佳记录电平。

6. 发明授权

US07120099B2 Laser output circuit for optical disk recording apparatus 失效
公开(公告)号：US07120099B2
公开(公告)日：2006-10-10
申请号：US10040177
申请日：2001-11-06
申请人： Yutaka Imamura , Toshihiko Hiroshima
发明人： Yutaka Imamura , Toshihiko Hiroshima
IPC分类号： G11B5/09 , G11B7/125
CPC分类号： G11B7/1267
摘要： A disk divided into a trial writing region, buffer region, read-in region, program region, and read-out region disposed from an inner peripheral side toward an outer peripheral side is rotated at a constant angular speed. A test signal is recorded in the trial writing region and an outer peripheral region disposed outside the read-out region, the recorded test signals are read, and a laser output value is set based on the reproduced test signals of the two regions.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式