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    • 2. 发明申请
    • OPTICAL DISC RECORDING DEVICE AND RECORDING SIGNAL GENERATING DEVICE
    • 光盘记录装置和记录信号发生装置
    • US20120082018A1
    • 2012-04-05
    • US13322666
    • 2011-03-24
    • Toyoji GushimaMakoto UsuiYuji Takagi
    • Toyoji GushimaMakoto UsuiYuji Takagi
    • G11B7/09
    • G11B20/1217G11B7/0037G11B7/0045G11B7/006G11B7/00736G11B20/1024G11B2020/1277G11B2020/1288G11B2220/218G11B2220/2537
    • Provided are an optical disc recording device and a recording signal generating device which enable to correct displacement between a reproducing position of a reproduction signal from a concave-convex mark preformed in an optical disc, and a recording position of second information to be recorded in synchronism with the reproduction signal, and stably and speedily record the second information. A digital signal processor (202) specifies a reproducing position in the concave-convex mark, using a reproduction signal and a channel clock. A recording signal generator (211) generates a recording signal alternately including a plurality of additionally recordable data, each of which includes second information and has a predetermined length, and a plurality of dummy data. A recording position controller (110) detects a recording position displacement amount representing a displacement amount between the reproducing position and a recording position of the additionally recordable data, using the reproducing position and the reading signal. A recording length adjustor (208) increases or decreases the recording length of dummy data in accordance with the recording position displacement amount.
    • 提供了一种光盘记录装置和记录信号产生装置,其能够校正来自在光盘中预先形成的凹凸标记的再现信号的再现位置与待同步记录的第二信息的记录位置之间的位移 具有再现信号,并稳定且快速地记录第二信息。 数字信号处理器(202)使用再现信号和通道时钟指定凹凸标记中的再现位置。 记录信号发生器(211)交替地产生包括多个附加可记录数据的记录信号,每个可附加记录数据包括第二信息并具有预定长度,以及多个伪数据。 记录位置控制器(110)使用再现位置和读取信号来检测表示可附加记录的数据的再现位置和记录位置之间的位移量的记录位置位移量。 记录长度调节器(208)根据记录位置位移量增加或减少虚拟数据的记录长度。
    • 3. 发明授权
    • Optical disc recording device and recording signal generating device
    • 光盘记录装置和记录信号发生装置
    • US08363529B2
    • 2013-01-29
    • US13322666
    • 2011-03-24
    • Toyoji GushimaMakoto UsuiYuji Takagi
    • Toyoji GushimaMakoto UsuiYuji Takagi
    • G11B7/00
    • G11B20/1217G11B7/0037G11B7/0045G11B7/006G11B7/00736G11B20/1024G11B2020/1277G11B2020/1288G11B2220/218G11B2220/2537
    • Provided are an optical disc recording device and a recording signal generating device which enable to correct displacement between a reproducing position of a reproduction signal from a concave-convex mark preformed in an optical disc, and a recording position of second information to be recorded in synchronism with the reproduction signal, and stably and speedily record the second information. A digital signal processor (202) specifies a reproducing position in the concave-convex mark, using a reproduction signal and a channel clock. A recording signal generator (211) generates a recording signal alternately including a plurality of additionally recordable data, each of which includes second information and has a predetermined length, and a plurality of dummy data. A recording position controller (110) detects a recording position displacement amount representing a displacement amount between the reproducing position and a recording position of the additionally recordable data, using the reproducing position and the reading signal. A recording length adjustor (208) increases or decreases the recording length of dummy data in accordance with the recording position displacement amount.
    • 提供了一种光盘记录装置和记录信号产生装置,其能够校正来自在光盘中预先形成的凹凸标记的再现信号的再现位置与待同步记录的第二信息的记录位置之间的位移 具有再现信号,并稳定且快速地记录第二信息。 数字信号处理器(202)使用再现信号和通道时钟指定凹凸标记中的再现位置。 记录信号发生器(211)交替地产生包括多个附加可记录数据的记录信号,每个可附加记录数据包括第二信息并具有预定长度,以及多个伪数据。 记录位置控制器(110)使用再现位置和读取信号来检测表示可附加记录的数据的再现位置和记录位置之间的位移量的记录位置位移量。 记录长度调节器(208)根据记录位置位移量增加或减少虚拟数据的记录长度。
    • 8. 发明授权
    • Wobble demodulator and wobble demodulation method
    • US07099244B2
    • 2006-08-29
    • US10660258
    • 2003-09-10
    • Kohei NakataToyoji GushimaMakoto UsuiKazuya OhshimaJunichi Minamino
    • Kohei NakataToyoji GushimaMakoto UsuiKazuya OhshimaJunichi Minamino
    • G11B20/08G11B15/52G11B20/10
    • G11B7/0053G11B20/1403G11B27/19G11B27/24G11B2220/20
    • A wobble demodulator for reproducing digital information from an optical recording medium in which a track is formed in accordance with a wobble signal that is MSK-modulated so as to contain the digital information by a carrier signal with a predetermined frequency and a sine wave signal with a frequency different from that of the carrier signal, includes: a wobble signal detector for detecting a wobble signal of the track from the optical recording medium; a wobble PLL for detecting the carrier signal based on the wobble signal detected by the wobble signal detector; a multiplier for multiplying the carrier signal detected by the wobble PLL by the wobble signal detected by the wobble signal detector and outputting a multiplied output; a MSK detector for detecting a MSK modulation mark having a phase or a frequency different from that of the carrier signal, based on an integrated value obtained by integrating the multiplied output from the multiplier on a predetermined section basis; and a MSK synchronization detector for detecting a synchronization position with respect to the digital information, based on the MSK modulation mark detected by the MSK detector, wherein the MSK detector compares a continuous predetermined number of the integrated values with a first threshold value for detecting a central portion of the MSK modulation mark, a second threshold value for detecting leading and trailing edges of the MSK modulation mark, and a third threshold value for detecting non-modulated portions before and after the MSK modulation mark, and detects the MSK modulation mark based on a pattern of a comparison result.
    • 10. 发明申请
    • RECORDING CONTROL DEVICE, LASER DRIVE DEVICE, INFORMATION RECORDING DEVICE, SIGNAL TRANSMISSION METHOD, AND RECORDING/REPRODUCTION CONTROL DEVICE
    • 记录控制装置,激光驱动装置,信息记录装置,信号传输方法和记录/再现控制装置
    • US20100220563A1
    • 2010-09-02
    • US11997494
    • 2006-05-30
    • Toyoji GushimaMakoto Usui
    • Toyoji GushimaMakoto Usui
    • G11B19/02
    • G11B7/126
    • An information recording device that offers high performance with an inexpensive structure is achieved without requiring a dedicated line for transmitting and receiving control data. The information recording device (1105) is a device for outputting a recording control signal to a laser drive device (1106) for driving a laser light source device to record information to an optical disk, comprising a recording data generation component (1206), a control data generation component (1207), an output component (1205), and a control component (1301). The recording data generation component (1206) generates recording data including information to be recorded to the optical disk, the control data generation component (1207) generates control data that controls the laser drive device (1106). The output component (1205) outputs the recording control signal in which the recording data and the control data are multiplexed. The control component (1301) controls at least one of the recording data generation component (1206), the control data generation component (1207) and the output component (1205).
    • 实现了具有廉价结构的高性能的信息记录装置,而不需要用于发送和接收控制数据的专用线路。 信息记录装置(1105)是用于向用于驱动激光光源装置的激光驱动装置(1106)输出记录控制信号以将信息记录到光盘的装置,包括记录数据生成部件(1206),记录数据生成部件 控制数据生成部件(1207),输出部件(1205)和控制部件(1301)。 记录数据生成部件(1206)生成包含要记录在光盘上的信息的记录数据,控制数据生成部件(1207)生成控制激光驱动装置(1106)的控制数据。 输出部件(1205)输出记录数据和控制数据被复用的记录控制信号。 控制部件(1301)控制记录数据生成部件(1206),控制数据生成部件(1207)和输出部件(1205)中的至少一个。