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    • 31. 发明申请
    • RECORDING DEVICE AND METHOD, AND COMPUTER PROGRAM
    • 记录设备和方法以及计算机程序
    • US20110188361A1
    • 2011-08-04
    • US12679553
    • 2007-09-28
    • Shoji FuseJunichi FurukawaHiroshi NishiwakiYoshio Sasaki
    • Shoji FuseJunichi FurukawaHiroshi NishiwakiYoshio Sasaki
    • G11B7/125
    • G11B7/1267G11B7/0045
    • A recording apparatus includes: a recording device for recording data onto a recording medium by applying a laser beam whose power can be adjusted; a first controlling device controlling the recording device to record calibration data while adjusting power; a first detecting device detecting calibration data recording quality; a second detecting device detecting push-pull signal amplitude by reading the calibration data; a first calculating device calculating a power by which the recording quality is desired quality, as a first optimum power; a second calculating device calculating a power by which the amplitude of the recorded push-pull signal satisfies a first condition and by which the recording quality satisfies a second condition, as a second optimum power, if the push-pull amplitude fails the first condition; and a second controlling device controlling the recording device to start recording record data by applying the laser beam with the first or second optimum power.
    • 一种记录装置,包括:记录装置,用于通过施加能够调节其功率的激光束将数据记录到记录介质上; 第一控制装置控制记录装置在调节功率的同时记录校准数据; 检测校准数据记录质量的第一检测装置; 第二检测装置,通过读取校准数据来检测推挽信号幅度; 第一计算装置,其计算作为第一最佳功率的记录质量是期望质量的功率; 第二计算装置,如果推挽幅度失败,则计算所记录的推挽信号的幅度满足第一条件并且记录质量满足第二条件的功率作为第二最佳功率; 以及第二控制装置,通过施加具有第一或第二最佳功率的激光束来控制记录装置开始记录记录数据。
    • 32. 发明授权
    • Semiconductor laser driving device and semiconductor laser driving method
    • 半导体激光驱动装置和半导体激光驱动方法
    • US07697583B2
    • 2010-04-13
    • US11910282
    • 2006-03-30
    • Junichi FurukawaKiyoshi Tateishi
    • Junichi FurukawaKiyoshi Tateishi
    • H01S3/00H01S3/04
    • G11B7/1263G11B7/0062H01S5/0617H01S5/06804H01S5/06832
    • A semiconductor laser driving device is mounted on an information recording and reproduction device, and is suitably used for recording and reproducing information. The semiconductor laser driving device includes: a semiconductor laser for emitting a laser light; and a temperature detection unit for detecting a temperature of the semiconductor laser. The semiconductor laser driving device changes the output of the laser light based on the detected temperature. Thus, the semiconductor laser driving unit can suitably improve response characteristics of the semiconductor laser, irrespective of the temperature of the semiconductor laser. Therefore, the semiconductor laser driving device can ensure recording performance onto an optical disc without being affected by the temperature of the semiconductor laser.
    • 半导体激光器驱动装置安装在信息记录和再现装置上,适用于记录和再现信息。 半导体激光器驱动装置包括:用于发射激光的半导体激光器; 以及用于检测半导体激光器的温度的温度检测单元。 半导体激光驱动装置根据检测到的温度来改变激光的输出。 因此,与半导体激光器的温度无关,半导体激光器驱动单元可以适当地改善半导体激光器的响应特性。 因此,半导体激光驱动装置能够确保在光盘上的记录性能而不受半导体激光器的温度的影响。