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    • 21. 发明授权
    • Compression of program instructions using advanced sequential correlation
    • 使用高级顺序相关压缩程序指令
    • US07305541B2
    • 2007-12-04
    • US11086124
    • 2005-03-21
    • Darko KirovskiMilenko DrinicHoi Huu Vo
    • Darko KirovskiMilenko DrinicHoi Huu Vo
    • G06F5/00
    • H03M7/3084G06F8/52H03M7/4006
    • Compressing program binaries with reduced compression ratios. One or several pre-processing acts are performed before performing compression using a local sequential correlation oriented compression technology such as PPM, or one of its variants or improvements. One pre-processing act splits the binaries into several substreams that have high local sequential correlation. Such splitting takes into consideration the correlation between common fields in different instructions as well as the correlation between different fields in the same instruction. Another pre-processing reschedules binary instructions to improve the degree of local sequential correlation without affecting dependencies between instructions. Yet another pre-processing act replaces common operation codes in the instruction with a symbols from a second alphabet, thereby distinguishing between operation codes that have a particular value, and other portions of the instruction that just happen to have the same value. Local sequential correlation compression such as PPM is then performed.
    • 压缩程序二进制压缩率降低。 在使用诸如PPM的本地顺序相关定向压缩技术执行压缩之前执行一个或多个预处理动作,或者其变型或改进之一。 一个预处理动作将二进制分割成具有高局部顺序相关性的若干子流。 这种分割考虑了不同指令中的公共字段之间的相关性以及相同指令中的不同字段之间的相关性。 另一种预处理重新调度二进制指令,以提高局部顺序关联的程度,而不影响指令之间的依赖关系。 另一种预处理行为用来自第二字母表的符号代替指令中的公共操作代码,从而区分具有特定值的操作代码和正好恰好具有相同值的指令的其他部分。 然后执行本地连续相关压缩,如PPM。
    • 24. 发明授权
    • Stealthy audio watermarking
    • 隐形音频水印
    • US07020285B1
    • 2006-03-28
    • US09614660
    • 2000-07-12
    • Darko KirovskiHenrique Malvar
    • Darko KirovskiHenrique Malvar
    • H04L9/00
    • H04H20/31G10L19/018G11B20/00086G11B20/00884H04N2005/91335
    • Described herein is technology for inserting and detecting watermarks in signals, such as a music clip. In one described implementation, a watermarking system employs chess spread-spectrum sequences (i.e., “chess watermarks”) to improve the balance of positive and negative chips in the watermarking sequences. In another described implementation, a watermarking system employs an energy-level trigger to determine whether to skip encoding of a portion of a watermark within a given time span of a clip. If a large discrepancy in energy levels exists over a given time frame, then the frame is not watermarked, to avoid audible time-dispersion of artifacts due to spectral modifications. In another described implementation, a watermarking system begins encoding of a watermark at a variable position after the beginning of a clip.
    • 这里描述了用于在诸如音乐剪辑的信号中插入和检测水印的技术。 在一个描述的实现中,水印系统采用棋牌扩频序列(即“象棋水印”)来改善水印序列中正和负码片的平衡。 在另一个描述的实现中,水印系统采用能级触发来确定是否在剪辑的给定时间跨度内跳过水印的一部分的编码。 如果在给定的时间帧内存在大的能量差异差异,则帧不会被加水印,以避免由于光谱修改引起的人为因素的可听时间分散。 在另一个描述的实现中,水印系统开始在剪辑开始之后的可变位置对水印进行编码。
    • 26. 发明申请
    • Iris-based biometric identification
    • 基于虹膜的生物识别
    • US20050207614A1
    • 2005-09-22
    • US10897664
    • 2004-07-22
    • Daniel SchonbergDarko Kirovski
    • Daniel SchonbergDarko Kirovski
    • G06K9/00
    • G06K9/00604G06K9/00597G06K9/0061
    • A method includes forming a feature vector associated with an iris of an individual using a transform operation including converting an iris image into a log-polar image, scaling one or more samples in the log-polar image according to a Fourier-Mellin transform, and performing a Fourier transform on the scaled samples. The method involves forming an iris digest based on the feature vector, and creating a biometric identifier based on the iris digest. A system includes an iris scanner, an iris analyzer that forms an image of a human iris wherein the presence of eyelashes in the image is minimized, forms a feature vector associated with the iris image using a modified Fourier-Mellin transform, and compresses the feature vector into an iris digest.
    • 一种方法包括使用包括将虹膜图像转换成对数极图像的变换操作来形成与个体的虹膜相关联的特征向量,根据傅立叶 - 梅林变换缩放对数极图像中的一个或多个样本,以及 对缩放后的样本进行傅里叶变换。 该方法包括基于特征向量形成虹膜摘要,以及基于虹膜摘要创建生物测定标识符。 一种系统,包括虹膜扫描仪,虹膜分析器,其形成人体虹膜的图像,其中图像中存在睫毛被最小化,使用修改的傅立叶 - 梅林变换形成与虹膜图像相关联的特征向量,并压缩特征 矢量进入虹膜摘要。
    • 28. 发明申请
    • PIFA ARRAY
    • PIFA阵列
    • US20120319919A1
    • 2012-12-20
    • US13163082
    • 2011-06-17
    • Darko KirovskiGerald DeJeanMiller AbelYingyi ZouCraig Brenner
    • Darko KirovskiGerald DeJeanMiller AbelYingyi ZouCraig Brenner
    • H01Q3/34
    • H01Q1/243H01Q9/0421H01Q9/42H01Q21/29
    • A PIFA (Planar Inverted-F Antenna) array antenna has multiple PIFAs. The PIFA array is used to provide different radiation patterns for communication. A signal being emitted by the PIFA array is manipulated. According to the manipulation, the PIFA array may emit the signal with an omni-directional radiation pattern or a directional radiation pattern; the same PIFA array (antenna) is used for both directional communication and omni-directional communication. The PIFA array may be used in mobile computing devices, smart phones, or the like, allowing such devices to transmit directionally and omni-directionally. The signal manipulation may involve splitting the signal into components that feed PIFAs, and before the components reach the PIFAs, changing properties of the components (e.g., phase) relative to each other.
    • PIFA(平面倒F天线)阵列天线具有多个PIFA。 PIFA阵列用于提供不同的辐射模式进行通信。 由PIFA阵列发射的信号被操纵。 根据操作,PIFA阵列可以以全向辐射图或定向辐射图发射信号; 相同的PIFA阵列(天线)用于定向通信和全向通信。 PIFA阵列可以用于移动计算设备,智能电话等,允许这样的设备定向和全向传输。 信号处理可以包括将信号分成馈送PIFA的组件,并且在组件到达PIF之前,改变组件(例如,相位)相对于彼此的属性。