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    • 2. 发明申请
    • Combustion fastener
    • 燃烧紧固件
    • US20060060628A1
    • 2006-03-23
    • US11215794
    • 2005-08-30
    • John LarkinBrian LambEdward Cooper
    • John LarkinBrian LambEdward Cooper
    • B25C1/14
    • B25C1/08
    • A dual combustion fastener device implements a first combustion event, contained in a first combustion chamber portion to compress a combustible fuel/air mixture contained in a second combustion chamber portion, which is separated from the first combustion chamber portion by a piston including a driver for driving a fastener disposed in the driver's path of travel into a workpiece, in order to generally provide rapid driving power for securing a fastener disposed in a nose guide of the combustion fastener. Ignition of the second combustion event may be timed so that the second combustion event substantially occurs when the piston has achieved top dead center or the maximum compression of the combustible material in the second combustion chamber portion. Utilization of compressed combustible material may allow for the utilization of a piston having a small cross-sectional area in comparison to a typical combustion device while providing equal or greater driving force in a rapid manner.
    • 双燃烧紧固件装置实施第一燃烧事件,其包含在第一燃烧室部分中,以压缩容纳在第二燃烧室部分中的可燃燃料/空气混合物,该燃烧/空气混合物与第一燃烧室部分分离,该活塞包括用于 将设置在驾驶员的行进路径中的紧固件驱动到工件中,以便通常提供用于固定设置在燃烧紧固件的鼻部引导件中的紧固件的快速驱动力。 可以点燃第二燃烧事件,使得当活塞达到上止点或第二燃烧室部分中的可燃材料的最大压缩时,第二燃烧事件基本上发生。 与典型的燃烧装置相比,使用压缩可燃材料可以允许利用具有小横截面面积的活塞,同时以快速方式提供相等或更大的驱动力。
    • 7. 发明授权
    • Method and system for decoding encoded images and reducing the size of said images
    • 用于对编码图像进行解码并减小所述图像的大小的方法和系统
    • US08045810B2
    • 2011-10-25
    • US12038905
    • 2008-02-28
    • Guixing WuBrian LambEn-Hui Yang
    • Guixing WuBrian LambEn-Hui Yang
    • G06K9/36
    • G06T9/004G06F17/147H04N19/117H04N19/132H04N19/18H04N19/42H04N19/48H04N19/59H04N19/60H04N19/80
    • A method and system for reducing the number of mathematical operations required in the JPEG decoding process without substantially impacting the quality of the image displayed is disclosed. Embodiments provide an efficient JPEG decoding process for the purposes of displaying an image on a display smaller than the source image, for example, the screen of a handheld device. According to one aspect of the invention, this is accomplished by reducing the amount of processing required for dequantization and inverse DCT (IDCT) by effectively reducing the size of the image in the quantized, DCT domain prior to dequantization and IDCT. This can be done, for example, by discarding unnecessary DCT index rows and columns prior to dequantization and IDCT. In one embodiment, columns from the right, and rows from the bottom are discarded such that only the top left portion of the block of quantized, and DCT coefficients are processed.
    • 公开了一种用于减少JPEG解码过程中所需的数学运算数量而不显着影响显示图像的质量的方法和系统。 实施例提供了一种高效的JPEG解码过程,用于在比源图像(例如手持设备的屏幕)更小的显示器上显示图像。 根据本发明的一个方面,这是通过在去量化和IDCT之前有效地减小量化的DCT域中的图像的大小来减少去量化和逆DCT(IDCT)所需的处理量来实现的。 这可以通过例如在去量化和IDCT之前丢弃不必要的DCT索引行和列来完成。 在一个实施例中,来自右侧的列和来自底部的列被丢弃,使得仅处理量化块的左上部分和DCT系数被处理。