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    • 4. 发明授权
    • Apparatus for recording and reproducing information on an optical disc
    • 用于在光盘上记录和再现信息的装置
    • US4574371A
    • 1986-03-04
    • US466910
    • 1983-02-16
    • Haruhiko TakemuraKiichi KatoMasaharu Sakamoto
    • Haruhiko TakemuraKiichi KatoMasaharu Sakamoto
    • G11B7/08G11B7/085G11B7/12G11B7/00
    • G11B7/12G11B7/08G11B7/085
    • An optical recording and reproducing apparatus includes a first semiconductor laser for emitting a recording laser beam whose intensity is modulated in accordance with an information signal to be recorded and a second semiconductor laser for emitting a reproducing laser beam having a constant intensity. The recording and reproducing semiconductor lasers are commonly mounted in a supporting member which is mounted on a pick-up plate arranged movably in a radial direction of a rotating optical disc. The recording and reproducing laser beams are composed with each other by means of a substantially parallelogram shaped prism having a reflection surface for reflecting the reproducing laser beam and an optical surface upon which the reproducing laser beam is made incident at an incident angle larger than a critical angle and the recording laser beam is made incident at an incident angle near Brewster's angle. The composed recording and reproducing laser beams are commonly focussed by a single objective lens onto the optical disc in such a manner that the recording laser beam is made incident upon an information track to be formed and the reproducing laser beam is made incident upon a guide track or a previously recorded information track.
    • 一种光学记录和再现装置包括:第一半导体激光器,用于发射根据要记录的信息信号调制其强度的记录激光束;以及第二半导体激光器,用于发射具有恒定强度的再现激光束。 记录和再现半导体激光器通常安装在支撑构件中,支撑构件安装在沿旋转光盘的径向方向可移动地布置的拾取板上。 记录和再现激光束通过具有用于反射再现激光束的反射表面的基本上平行四边形的棱​​镜和重现激光束以大于临界的入射角入射的光学表面彼此组成 角度和记录激光束以布鲁斯特角附近的入射角入射。 组合的记录和再现激光束通常由单个物镜聚焦到光盘上,使得记录激光束入射到要形成的信息轨迹上,并且再现激光束入射到导轨上 或先前记录的信息轨道。
    • 7. 发明授权
    • Invoking externally assisted calls from an isolated environment
    • 从孤立的环境调用外部辅助呼叫
    • US07934063B2
    • 2011-04-26
    • US11693406
    • 2007-03-29
    • Masana MuraseWilfred E. Plouffe, Jr.Masaharu SakamotoKanna ShimizuVladimir Zbarsky
    • Masana MuraseWilfred E. Plouffe, Jr.Masaharu SakamotoKanna ShimizuVladimir Zbarsky
    • G06F13/28
    • G06F9/544
    • A method of invoking power processor element (PPE) serviced C library functions on a synergistic processing element (SPE) running in isolated mode. When the SPE initiates a PPE-serviced function, an SPE stub routine allocates a parameter buffer in an open area of a local store (LS) memory within the SPE. The LS memory includes an open area accessible to the PPE, and an isolated area inaccessible to the PPE. The SPE stub routine copies function parameters corresponding to the PPE-serviced function to a buffer within the open area of the LS memory, and writes a message word, which contains an identification variable of the PPE-serviced function and a location variable of the function parameters, to the open area. When execution is temporarily suspended on the SPE, the PPE reads the message word from the open area of the LS memory and executes the PPE-serviced function.
    • 一种在隔离模式下运行的协同处理元件(SPE)上调用功率处理器元件(PPE)服务C库函数的方法。 当SPE启动PPE服务功能时,SPE stub例程在SPE内的本地存储(LS)存储器的打开区域中分配参数缓冲区。 LS存储器包括PPE可访问的开放区域和PPE无法访问的隔离区域。 SPE存根例程将对应于PPE服务功能的功能参数复制到LS存储器的开放区域内的缓冲区,并写入一个消息字,其中包含PPE服务功能的标识变量和功能的位置变量 参数,到开放区域。 当执行暂停在SPE上时,PPE从LS存储器的打开区域读取消息字,并执行PPE服务功能。