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    • 25. 发明授权
    • Semiconductor laser device capable of maintaining the operation current low and method of manufacturing the same
    • 能够维持运转电流低的半导体激光器件及其制造方法
    • US07084433B2
    • 2006-08-01
    • US10377704
    • 2003-03-04
    • Hiroyuki HosobaAtsuo TsunodaHiroshi Hayashi
    • Hiroyuki HosobaAtsuo TsunodaHiroshi Hayashi
    • H01L33/00
    • H01S5/2231H01S5/2081H01S5/209H01S5/2205H01S5/2219
    • In this semiconductor laser device, an InGaP etching block layer 11 as an etching selection layer having etching selectivity for an n-type AlInP current block layer 10, which is a non-optical-absorption layer, is formed on the n-type current block layer 10. Since this etching block layer 11 prevents the current block layer 10 on both sides of a ridge 20 from being etched during manufacture, a contact layer 12 can be prevented from entering gaps between the sides of this ridge 20 and the current block layer 10. Therefore, light oscillating in an active layer 4 is taken out from a device end surface without being absorbed in the contact layer 12. According to this semiconductor laser device, an oscillation threshold current and an operation current can be maintained low, deterioration of differential quantum efficiency can be prevented and reliability can be improved.
    • 在该半导体激光器件中,在n型电流块上形成作为非光学吸收层的n型AlInP电流阻挡层10具有蚀刻选择性的蚀刻选择层的InGaP蚀刻阻挡层11 第10层。 由于该蚀刻阻挡层11防止在制造期间在脊20的两侧上的电流阻挡层10被蚀刻,因此可以防止接触层12进入该脊20的两侧与当前阻挡层10之间的间隙。 因此,在有源层4中振荡的光从器件端面取出而不被吸收在接触层12中。 根据该半导体激光器件,可以将振荡阈值电流和工作电流维持在较低水平,可以防止差分量子效率的劣化,提高可靠性。
    • 28. 发明授权
    • Synchronization acquiring method synchronization acquiring apparatus
    • 同步获取方法同步获取装置
    • US06546064B1
    • 2003-04-08
    • US09323957
    • 1999-06-02
    • Hiroshi Hayashi
    • Hiroshi Hayashi
    • H04L700
    • H04B1/70758
    • A synchronization acquiring method capable of reducing the length of time required to perform in wireless communication a synchronization acquiring operation is provided when the mobile station transits from a sleep state to an active state. A synchronization acquiring apparatus capable of performing such a synchronization acquiring method is also provided. The method has the following three steps. In the first step, multiple correlation values are obtained between the input data supplied from a base station to the mobile station and multiple phases of a spreading code multiplied to the input data in the mobile station before the mobile station transits from the active state to the sleep state, multiple phases of the spreading code that correspond to the correlation values are determined, and the multiple phases are stored. In the second step, phases of the spreading code multiplied to the input data are determined using the phase when the mobile station transits from the sleep state to the active state. In the third step, correlation values between the input data and the phases of the spreading code multiplied to the input data are obtained using the phases of the spreading code determined in the second step.
    • 当移动台从睡眠状态转换到活动状态时,提供能够减少在无线通信中执行同步获取操作所需的时间长度的同步获取方法。 还提供了能够执行这种同步获取方法的同步获取装置。 该方法有以下三个步骤。 在第一步骤中,在从基站向移动站提供的输入数据和移动站从活动状态转移到移动台之前与移动站中的输入数据相乘的扩展码的多个相位获得多个相关值 休眠状态,确定与相关值对应的扩展码的多个相位,并存储多个相位。 在第二步骤中,当移动站从睡眠状态转换到活动状态时,使用相位来确定与输入数据相乘的扩频码的相位。 在第三步骤中,使用在第二步骤中确定的扩展码的相位,获得输入数据与扩展码的相位之间的相关值与输入数据相乘。
    • 29. 发明授权
    • Thin-film forming method and thin-film forming apparatus
    • 薄膜形成方法和薄膜形成装置
    • US06447652B1
    • 2002-09-10
    • US09463004
    • 2000-04-05
    • Shunji AmanoHiroshi HayashiRyoichi Hiratsuka
    • Shunji AmanoHiroshi HayashiRyoichi Hiratsuka
    • C23C1434
    • C23C16/52C23C14/547C23C14/562G01N21/65G01N21/8422G01N2021/656G11B5/72G11B5/8408
    • A Raman spectrum of a thin film which must be formed is measured in a thin-film forming step for forming the thin film on a member to be processed in an atmosphere, the pressure of which has been reduced. Moreover, the conditions under which the thin film is formed are controlled in accordance with a result of measurement of the Raman spectrum. At this time, the measurement of the Raman spectrum is continuously performed in an in-line manner while the thin film is being continuously formed on the elongated-sheet-like member to be processed. The measurement of the Raman spectrum is performed while the focal point of a probe of a Raman spectrometer is being controlled with respect to the member to be processed or while the output of a laser beam from the Raman spectrometer is being controlled. The thin film which must be. formed is, for example, a protective film of a magnetic recording medium. The protective film is, for example, a hard carbon film (a DLC film).
    • 必须形成的薄膜的拉曼光谱是在薄膜形成步骤中测量的,该薄膜形成步骤用于在压力被降低的气氛中在待加工的构件上形成薄膜。 此外,根据拉曼光谱的测量结果来控制形成薄膜的条件。 此时,在被处理的细长片状构件上连续地形成薄膜的同时,以直线方式连续进行拉曼光谱的测定。 当拉曼光谱仪的探针的焦点相对于待加工的构件被控制或者来自拉曼光谱仪的激光束的输出被控制时,进行拉曼光谱的测量。 薄膜一定是。 形成例如是磁记录介质的保护膜。 保护膜例如是硬质碳膜(DLC膜)。
    • 30. 发明授权
    • Data conversion apparatus and image generation apparatus
    • 数据转换装置和图像生成装置
    • US06188386B1
    • 2001-02-13
    • US09205202
    • 1998-12-04
    • Hiroshi HayashiJunichi FujitaHiroyuki Ozawa
    • Hiroshi HayashiJunichi FujitaHiroyuki Ozawa
    • G09G504
    • G09G5/02G09G5/06
    • A data conversion apparatus for converting index data to real data and an image generation apparatus for converting index texture data to real texture data by the data conversion to make it possible to suitably carry out texture mapping. A data conversion apparatus comprises a first memory and a second memory each for storing data having a n bit width and in which any data is stored, an address detecting means for detecting addresses of the first memory and the second memory based on input data, a data reading means for reading data stored at the detected addresses of the first memory and the second memory, a first data selecting means for selecting either of the data read from the first memory or the data read from the second memory, a data extending means for extending the selected data to data having a 2×n bits width, and a second data selecting means for selecting either of the first data formed by connecting the data output from the first memory and the data output from the second memory or the second data of the extended data.
    • 一种用于将索引数据转换为实数数据的数据转换装置,以及用于通过数据转换将索引纹理数据转换为实际纹理数据的图像生成装置,使得可以适当地执行纹理映射。 数据转换装置包括第一存储器和第二存储器,每个存储器用于存储具有位宽度并且存储任何数据的数据;地址检测装置,用于基于输入数据检测第一存储器和第二存储器的地址;数据 用于读取存储在第一存储器和第二存储器的检测到的地址的数据的读取装置,用于选择从第一存储器读取的数据或从第二存储器读取的数据的第一数据选择装置,用于扩展 所选择的数据具有2xn位宽的数据,以及第二数据选择装置,用于选择通过连接从第一存储器输出的数据和从第二存储器输出的数据形成的第一数据或扩展数据的第二数据 。