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1. 发明授权

US5802032A Method and device for recording a mark having a substantially constant number of pulses per unit length independent of writing speed on an optical information carrier 失效
标题翻译：用于在光学信息载体上独立于写入速度记录每单位长度具有基本上恒定数目的脉冲的标记的方法和装置
公开(公告)号：US5802032A
公开(公告)日：1998-09-01
申请号：US800443
申请日：1997-02-18
申请人： Bernardus A.J. Jacobs , James H. Coombs , Johannes H.M. Spruit , Johan P.W.B. Duchateau , Guofu F. Zhou
发明人： Bernardus A.J. Jacobs , James H. Coombs , Johannes H.M. Spruit , Johan P.W.B. Duchateau , Guofu F. Zhou
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/125 , G11B20/08 , G11B20/12 , G11B5/76
CPC分类号： G11B7/0062 , G11B20/08 , G11B7/00454 , G11B7/00557 , G11B20/1258
摘要： A method is described for recording an optical information carrier, in which marks representing recorded data are written at different writing speeds by radiation pulse of equal length and power, independent of the writing speed. The number of pulses per unit length of the written mark is a constant independent of the writing speed.
摘要翻译：描述了一种用于记录光学信息载体的方法，其中以与写入速度相同的长度和功率相等的辐射脉冲以不同的写入速度写入表示记录数据的标记。写入标记的每单位长度的脉冲数是独立于写入速度的常数。

2. 发明授权

US6040066A Rewritable optical information medium 失效
标题翻译：可重写光信息媒体
公开(公告)号：US6040066A
公开(公告)日：2000-03-21
申请号：US206430
申请日：1998-12-07
申请人： Guo-Fu Zhou , Bernardus A.J. Jacobs , Johannes C.N. Rijpers , Hermanus J. Borg
发明人： Guo-Fu Zhou , Bernardus A.J. Jacobs , Johannes C.N. Rijpers , Hermanus J. Borg
IPC分类号： G11B7/241 , B41M5/26 , G11B7/0045 , G11B7/006 , G11B7/243 , G11B7/253 , G11B7/2534 , G11B7/257 , G11B7/258 , B32B3/00
CPC分类号： G11B7/258 , G11B7/243 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432 , G11B7/00454 , G11B7/006 , G11B7/2534 , Y10S428/913 , Y10S430/146 , Y10T428/12674 , Y10T428/31678
摘要： A rewritable optical information medium has a phase-change recording layer (3) on the basis of an alloy of Ge-Sb-Te-O, having the composition (Ge.sub.a Sb.sub.b Te.sub.c).sub.1-d O.sub.d, wherein:a+b+c=10.0001 a d a 0.035The addition of oxygen considerably speeds up the crystallization rate of Ge-Sb-Te materials. Such a medium is suitable for high speed recording (i.e. at least eight times the CD-speed), such as for DVD-RAM and optical tape. The amount of oxygen in the recording layer (3) can be used to tune the crystallization rate to the desired value.
摘要翻译：可重写光信息介质具有基于具有（GeaSbbTec）1-dOd组成的Ge-Sb-Te-O的合金的相变记录层（3），其中：a + b + c = 1 0.0001 ada 0.035加入氧气大大加快了Ge-Sb-Te材料的结晶速率。这种介质适用于高速记录（即CD速度的至少八倍），例如用于DVD-RAM和光带。记录层（3）中的氧气量可用于将结晶速率调节到期望值。

3. 发明授权

US5719614A Optical reading and recording device containing a radiation source which has a substantially constant mean heat dissipation during reading and recording 失效
标题翻译：含有辐射源的光学读取和记录装置，其在读取和记录期间具有基本上恒定的平均散热
公开(公告)号：US5719614A
公开(公告)日：1998-02-17
申请号：US579085
申请日：1995-11-21
申请人： Coen T.H.F. Liedenbaum , Bernardus A.J. Jacobs
发明人： Coen T.H.F. Liedenbaum , Bernardus A.J. Jacobs
IPC分类号： G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/125 , G11B11/105 , B41J2/47 , G01D15/14 , B41J4/435
CPC分类号： G11B7/126 , G11B11/10506 , G11B11/10515 , G11B11/10595 , G11B7/0045 , G11B7/005
摘要： A radiation beam is generated by a radiation source such as laser. An optical system focuses the radiation beam at a recording layer (in a disc-shaped carrier) of a type in which an optically detectable change is caused to take place if the recording layer is heated to above a write temperature. The recording layer is scanned by the radiation beam by means of a motor. A control circuit feeds the radiation source with electric power which is converted in the radiation source partly into heat and partly into radiation for the radiation beam. The control circuit operates in a read mode in which the power supplied to the radiation source has a value at which the rise in temperature of the recording layer caused by the radiation beam is insufficient to cause an optically detectable change to take place. The control circuit also operates in a write mode in which the radiation source is intermittently fed with power pulses having a strength at which the rise in temperature of the recording layer caused by the radiation beam is sufficiently large to cause an optically detectable change to take place. The power pulses generated in the write mode have a strength and a duration for which the corresponding mean heat dissipation in the radiation source is substantially equal to the mean heat dissipation in the radiation soure in the read mode. As a result, the wavelengths of the generated radiation in the read mode and write mode are equal, thereby avoiding problems with a wavelength dispersion in the optical path of the optical system.
摘要翻译：辐射束由诸如激光的辐射源产生。光学系统将辐射束聚焦在记录层（在盘形载体中），其中如果记录层被加热到写入温度以上，则可以发生光学可检测的变化。记录层通过电机通过辐射束进行扫描。控制电路向辐射源馈送电力，该功率在辐射源中被部分转换为热量，部分地转换成用于辐射束的辐射。控制电路在读取模式下工作，其中提供给辐射源的功率具有由辐射束引起的记录层的温度升高不足以引起光学上可检测的变化的值。控制电路还以写入模式工作，其中辐射源被间歇地馈送具有强度的功率脉冲，其中由辐射束引起的记录层的温度升高足够大以致于发生光学上可检测的变化。在写入模式下产生的功率脉冲具有强度和持续时间，辐射源中对应的平均散热基本上等于读取模式下辐射灵敏度中的平均散热。结果，读取模式和写入模式中所产生的辐射的波长相等，从而避免了光学系统的光路中的波长色散的问题。

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