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    • 83. 发明授权
    • Tilt correcting apparatus and method, information recording apparatus, and information recording/reproducing apparatus
    • 倾斜校正装置和方法,信息记录装置和信息记录/再现装置
    • US07719940B2
    • 2010-05-18
    • US11170186
    • 2005-06-30
    • Kanji IshiharaHidenori NakagawaHisao Tanaka
    • Kanji IshiharaHidenori NakagawaHisao Tanaka
    • G11B7/00
    • G11B7/1369G11B7/0053G11B7/0956
    • A tilt correcting apparatus makes a tilt correction in an information recording apparatus or the like capable of recording record information onto an information recording medium, on an information recording surface of which a track having a wobble is formed, by emitting laser light thereonto. The tilt correcting apparatus is provided with: a correcting device for changing an irradiation angle of the laser light; a controlling device for controlling the correcting device such that the irradiation angle is set to be each of a plurality of predetermined angles before the record information is recorded; a wobble detecting device for detecting a wobble signal corresponding to the wobble from a photo-detection signal of light from the track caused by the laser light; and a tilt determining device for determining an amount of tilt of the information recording surface, on the basis of the detected wobble signal. The controlling device controls the correcting device to correct the irradiation angle in accordance with the determined amount of tilt when the record information is recorded.
    • 倾斜校正装置在能够通过在其上发射激光的信息记录表面上形成具有摆动的轨道的信息记录表面上的信息记录装置等中进行倾斜校正。 倾斜校正装置设置有:用于改变激光的照射角度的校正装置; 用于控制校正装置的控制装置,使得在记录信息被记录之前照射角度被设置为多个预定角度中的每一个; 摆动检测装置,用于从由激光引起的来自光道的光的光检测信号中检测与摆动相对应的摆动信号; 以及倾斜确定装置,用于基于检测到的摆动信号来确定信息记录表面的倾斜量。 当记录信息被记录时,控制装置控制校正装置根据确定的倾斜量修正照射角度。
    • 85. 发明申请
    • INFORMATION RECORDING APPARATUS AND INFORMATION RECORDING METHOD
    • 信息记录装置和信息记录方法
    • US20090022027A1
    • 2009-01-22
    • US12100463
    • 2008-04-10
    • Yoshio SasakiMasakazu FurukawaHisao TanakaHiroyuki Uchino
    • Yoshio SasakiMasakazu FurukawaHisao TanakaHiroyuki Uchino
    • G11B7/0045
    • G11B7/0062G11B7/00456
    • In the information recording apparatus, by driving the light source by the pulse signal corresponding to the recording signal, the laser pulse corresponding to the recording signal is irradiated onto the recording medium. The recording signal has the mark period to form the recording mark, and the space period in which the recording mark is not formed. In the mark period, the output level of the laser pulse changes between the normal level and the writing level, thereby, the recording mark is formed on the recording medium. On the one hand, over a predetermined period in the space period, the output level of the laser pulse is changed to the low level lower than the normal level. Thereby, the heat accumulation onto the recording medium, due to the transient response of the laser pulse in the mark period, is reduced, and in the mark period after that, the correct recording mark can be formed.
    • 在信息记录装置中,通过与对应于记录信号的脉冲信号驱动光源,将与记录信号对应的激光脉冲照射到记录介质上。 记录信号具有用于形成记录标记的标记周期和不形成记录标记的空间周期。 在标记期间,激光脉冲的输出电平在正常电平和写入电平之间变化,由此在记录介质上形成记录标记。 一方面,在空间周期的预定时间段内,激光脉冲的输出电平变为低于正常电平的低电平。 因此,由于激光脉冲在标记周期中的瞬态响应而在记录介质上的积聚减少,并且在标记周期之后,可以形成正确的记录标记。
    • 86. 发明申请
    • Tilt correcting apparatus and method, information recording apparatus, and information recording/reproducing apparatus
    • 倾斜校正装置和方法,信息记录装置和信息记录/再现装置
    • US20060002254A1
    • 2006-01-05
    • US11170186
    • 2005-06-30
    • Kanji IshiharaHidenori NakagawaHisao Tanaka
    • Kanji IshiharaHidenori NakagawaHisao Tanaka
    • G11B7/00
    • G11B7/1369G11B7/0053G11B7/0956
    • A tilt correcting apparatus makes a tilt correction in an information recording apparatus or the like capable of recording record information onto an information recording medium, on an information recording surface of which a track having a wobble is formed, by emitting laser light thereonto. The tilt correcting apparatus is provided with: a correcting device for changing an irradiation angle of the laser light; a controlling device for controlling the correcting device such that the irradiation angle is set to be each of a plurality of predetermined angles before the record information is recorded; a wobble detecting device for detecting a wobble signal corresponding to the wobble from a photo-detection signal of light from the track caused by the laser light; and a tilt determining device for determining an amount of tilt of the information recording surface, on the basis of the detected wobble signal. The controlling device controls the correcting device to correct the irradiation angle in accordance with the determined amount of tilt when the record information is recorded.
    • 倾斜校正装置在能够通过在其上发射激光的信息记录表面上形成具有摆动的轨道的信息记录表面上的信息记录装置等中进行倾斜校正。 倾斜校正装置设置有:用于改变激光的照射角度的校正装置; 用于控制校正装置的控制装置,使得在记录信息被记录之前照射角度被设置为多个预定角度中的每一个; 摆动检测装置,用于从由激光引起的来自光道的光的光检测信号中检测与摆动相对应的摆动信号; 以及倾斜确定装置,用于基于检测到的摆动信号来确定信息记录表面的倾斜量。 当记录信息被记录时,控制装置控制校正装置根据确定的倾斜量修正照射角度。