会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • INFORMATION RECORDING MEDIUM, RECORDING APPARATUS, REPRODUCING APPARATUS AND REPRODUCING METHOD
    • 信息记录介质,记录装置,再现装置和再现方法
    • US20100195458A1
    • 2010-08-05
    • US12629192
    • 2009-12-02
    • Tomoyasu TAKAOKAShigeru FURUMIYANaoyasu MIYAGAWA
    • Tomoyasu TAKAOKAShigeru FURUMIYANaoyasu MIYAGAWA
    • G11B20/10G11B7/26
    • G11B7/24038G11B7/005G11B7/0062G11B7/252G11B7/259G11B2007/24312G11B2007/24314G11B2007/24316G11B2007/25706G11B2007/25708G11B2007/25715
    • An information recording medium, comprising N number (N is an integer fulfilling N≧3) of information layers on which information is recordable, and allowing information to be recorded on each of the information layers and allowing information recorded on each of the information layers to be reproduced by being irradiated with laser light. The N number of information layers include an N′th information layer, an (N−1)th information layer, an (N−2)th information layer, . . . a second information layer and a first information layer sequentially located from a laser light incidence side. A reflectance of the N′th information layer is RN, and a reflectance of an M′th information layer (M refers to every integer fulfilling N>M≧1) is RM. The laser light used to irradiate the N′th information layer for reproducing information recorded on the N′th information layer has an upper limit reproduction power PrNmax, and the laser light used to irradiate the M′th information layer for reproducing information recorded on the M′th information layer has an upper limit reproduction power PrMmax. The following expressions (1) and (2) are concurrently fulfilled: RN>RM  (1) PrMmax
    • 一种信息记录介质,包括可记录信息的信息层的N个数(N是满足N≥3的整数),并且允许将信息记录在每个信息层上并允许记录在每个信息层上的信息 通过用激光照射来再现。 N个信息层包括第N个信息层,第(N-1)个信息层,第(N-2)个信息层。 。 。 第二信息层和从激光入射侧依次定位的第一信息层。 第N个信息层的反射率为RN,第M个信息层(M为满足N>M≥1的每个整数)的反射率为RM。 用于照射第N信息层的用于再现记录在第N信息层上的信息的激光具有上限再现功率PrNmax,并且用于照射第M个信息层的激光用于再现记录在第N信息层上的信息 第M个信息层具有上限再现功率PrMmax。 同时满足以下表达式(1)和(2):RN> RM(1)PrMmax
    • 6. 发明申请
    • OPTICAL DISC VERIFICATION METHOD AND OPTICAL DISC MEDIUM
    • 光盘验证方法和光盘介质
    • US20090207705A1
    • 2009-08-20
    • US12369870
    • 2009-02-12
    • Shigeru FURUMIYAAtsushi NAKAMURA
    • Shigeru FURUMIYAAtsushi NAKAMURA
    • G11B20/10
    • G11B7/00458G11B7/00736G11B7/268G11B20/10009G11B20/10314G11B20/10379G11B2020/1099G11B2220/218G11B2220/2541
    • An optical disc verification method according to the present invention includes the steps of: writing data on first, second and third radial locations on an optical disc at a writing speed V1 and reading the data written there, thereby measuring read signal quality index values A, B and C, where the second radial location is inside of the first radial location and the third radial location is inside of the second radial location; writing data on the first and second radial locations at a writing speed V2, which is higher than V1, and reading the data written there, thereby measuring read signal quality index values D and E; and correcting the signal quality index value C with the difference between the signal quality index values B and E, thereby calculating a signal quality index value F that would be obtained if data is written on, and then read from, the third radial location at the speed V2.
    • 根据本发明的光盘验证方法包括以下步骤:以写入速度V1在光盘上的第一,第二和第三径向位置上写入数据,并读取写在其上的数据,从而测量读取信号质量指数值A, B和C,其中第二径向位置在第一径向位置内,第三径向位置在第二径向位置内; 以高于V1的写入速度V2在第一和第二径向位置上写入数据,并读取写入的数据,从而测量读取信号质量指标值D和E; 并且用信号质量指标值B和E之间的差校正信号质量指标值C,由此计算如果数据被写入的第三径向位置上的数据被读取,然后读取,则获得的信号质量指标值F 速度V2。
    • 9. 发明申请
    • OPTICAL RECORDING METHOD, OPTICAL RECORDING APPARATUS, APPARATUS FOR MANUFACTURING A MASTER THROUGH EXPOSURE PROCESS, OPTICAL INFORMATION RECORDING MEDIUM AND REPRODUCTION METHOD
    • 光学记录方法,光学记录装置,通过曝光过程制造主体的装置,光学信息记录介质和再现方法
    • US20100202268A1
    • 2010-08-12
    • US12577769
    • 2009-10-13
    • Atsushi NAKAMURAIsao KOBAYASHIShigeru FURUMIYA
    • Atsushi NAKAMURAIsao KOBAYASHIShigeru FURUMIYA
    • G11B7/0045
    • G11B7/00456G11B7/0062G11B7/261G11B2007/0013
    • An optical recording method for recording information by irradiating an optical disc medium with a modulated write pulse train of laser light variable over a plurality of power levels such that a plurality of marks are formed on the optical disc medium, edge positions of each of the marks and a space between adjacent two of the marks being utilized for recording of the information. The optical recording method includes the steps of: encoding record data to generate encoded data which is a combination of marks and spaces; classifying the encoded data according to a combination of a mark length of the mark, a space length of a first space that immediately precedes the mark, and a space length of a second space that immediately succeeds the mark; generating a write pulse train for forming the mark, in which at least one of a leading end edge position, a trailing end edge position and a pulse width of the write pulse train is changed according to a classification result; and irradiating the optical disc medium with the write pulse train generated to form the plurality of marks on the optical disc medium.
    • 一种光记录方法,用于通过在光盘介质上形成多个标记的激光的调制写入脉冲序列对光盘介质进行照射来记录信息,使得在光盘介质上形成多个标记,每个标记的边缘位置 并且相邻两个标记之间的空间用于记录信息。 光记录方法包括以下步骤:编码记录数据以生成作为标记和空格的组合的编码数据; 根据标记的标记长度,紧接在标记之前的第一空格的空格长度和紧接着标记的第二空格的间隔长度的组合对编码数据进行分类; 产生用于形成标记的写脉冲串,其中根据分类结果改变写入脉冲串的前端边缘位置,后端边缘位置和脉冲宽度中的至少一个; 以及在光盘介质上照射生成的写入脉冲串,以在光盘介质上形成多个标记。