Semiconductor surface lenses and shaped structures
    2.
    发明授权
    Semiconductor surface lenses and shaped structures 失效
    半导体表面透镜和成形结构

    公开(公告)号:US06215134B1

    公开(公告)日:2001-04-10

    申请号:US09075744

    申请日:1998-05-08

    IPC分类号: H01L3300

    CPC分类号: H01L33/20

    摘要: A lens is formed out of semiconductor material. The semiconductor produces light which is coupled to the lens. The lens focuses the light and also minimizes refractive reflection. The lens is formed by a graded aluminum alloy, which is oxidized in a lateral direction. The oxidation changes the effective shape of the device according to the grading.

    摘要翻译: 透镜由半导体材料形成。 半导体产生耦合到透镜的光。 镜头对光线进行聚焦,并且还可以减少折射反射。 透镜由横向氧化的渐变铝合金形成。 氧化根据分级改变装置的有效形状。

    Methods for forming semiconductor lenses on substrates
    3.
    发明授权
    Methods for forming semiconductor lenses on substrates 有权
    在基片上形成半导体透镜的方法

    公开(公告)号:US06627469B2

    公开(公告)日:2003-09-30

    申请号:US09832413

    申请日:2001-04-10

    IPC分类号: H01L2100

    CPC分类号: H01L33/20

    摘要: A lens is formed out of semiconductor material. The semiconductor produces light which is coupled to the lens. The lens focuses the light and also minimizes refractive reflection. The lens is formed by a graded aluminum alloy, which is oxidized in a lateral direction. The oxidation changes the effective shape of the device according to the grading.

    摘要翻译: 透镜由半导体材料形成。 半导体产生耦合到透镜的光。 镜头对光线进行聚焦,并且还可以减少折射反射。 透镜由横向氧化的渐变铝合金形成。 氧化根据分级改变装置的有效形状。

    Wavelength selective optical couplers
    9.
    发明授权
    Wavelength selective optical couplers 失效
    波长选择光耦合器

    公开(公告)号:US06289699B1

    公开(公告)日:2001-09-18

    申请号:US09035919

    申请日:1998-03-06

    IPC分类号: C03B3715

    摘要: A wavelength selective optical fiber coupler having various applications in the field of optical communications is disclosed. The coupler is composed of dissimilar waveguides in close proximity. A light induced, permanent index of refraction grating is recorded in the coupler waist The grating filters and transfers energy within a particular range of wavelengths from a first waveguide to a second waveguide. Transversely asymmetric gratings provide an efficient means of energy transfer. The coupler can be used to combine or multiplex a plurality of lasers operating at slightly different wavelengths into a single fiber. Other embodiments such as a dispersion compensator and gain flattening filter are disclosed.

    摘要翻译: 公开了一种在光通信领域具有各种应用的波长选择性光纤耦合器。 耦合器由相邻的不同波导组成。 光诱导的永久折射率光栅被记录在耦合器腰部中。光栅在从第一波导到第二波导的特定波长范围内过滤和传递能量。 横向不对称光栅提供了有效的能量传递手段。 耦合器可用于将以稍微不同的波长工作的多个激光器组合或多路复用到单个光纤中。 公开了诸如色散补偿器和增益平坦化滤光器的其它实施例。

    Parallel CCD memory chip and method of matching therewith
    10.
    发明授权
    Parallel CCD memory chip and method of matching therewith 失效
    并行CCD存储芯片及其匹配方法

    公开(公告)号:US5386384A

    公开(公告)日:1995-01-31

    申请号:US28124

    申请日:1993-03-09

    IPC分类号: G11C15/00 G11C19/28 H03K23/46

    摘要: A fully parallel CCD memory chip of N address lines which detects in just one clock cycle, a perfect match between an input pattern and any of a plurality of stored patterns and also detects in less than (N+1)-comparison cycles and still just one XOR operation, the best matching in case a perfect one does not exist. The chip disclosed herein has a fully parallel architecture in which an input word is compared to all stored words at one time. A preferred embodiment of the invention uses a four phase CCD, wherein each stored word occupies one row of the CCD and each such bit of each such word occupies two cells. Where perfect matches exist, only one comparison clock cycle is needed to compare the input word with all stored words and where there is no perfect match, the best match will be detected on a subsequent comparison pulse. Charge packets represent binary words generated by external pulses that are applied to the chip through data input lines and then are compared to the data applied to the address lines. The sensing is done directly on the cells in a non-destructive sensing process in parallel, rather than at the end of each row.

    摘要翻译: 一个完全并行的N个地址线的CCD存储芯片,只需一个时钟周期即可检测输入模式与多种存储模式中的任一种之间的完美匹配,并且还可以在少于(N + 1)个比较周期内进行检测 一个XOR操作,最好的匹配,一个完美的不存在的情况。 本文公开的芯片具有完全并行的架构,其中输入字被一次与所有存储的字进行比较。 本发明的优选实施例使用四相CCD,其中每个存储的字占据CCD的一行,并且每个这样的字的每个这样的位占据两个单元。 在存在完美匹配的情况下,仅需要一个比较时钟周期来比较输入字与所有存储字,并且在没有完美匹配的情况下,将在随后的比较脉冲中检测最佳匹配。 充电分组表示由通过数据输入线施加到芯片的外部脉冲产生的二进制字,然后与施加到地址线的数据进行比较。 在非破坏性感测过程中,并行地而不是在每一行的末端,在单元上直接进行感测。