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    • 2. 发明申请
    • Fake currency detector using visual and reflective spectral response
    • 伪货币检测器采用视觉和反射光谱响应
    • US20060115139A1
    • 2006-06-01
    • US11266596
    • 2005-11-04
    • Murli JoshiRam BajpaiGautam MitraHarish SardanaHari BhargawSaroj Batra
    • Murli JoshiRam BajpaiGautam MitraHarish SardanaHari BhargawSaroj Batra
    • G06K9/00
    • G07D7/121G07D7/1205
    • A system for automatic detection of authenticity of security documents by measuring reflected components of incident energy in three or more optical wave bands. The system involves the use of UV-visible light source, an optional near infra red light source, photodetectors and associated sensing circuitry. Photoelectric signals generated by photodetectors from the reflected energy received from a security document are used to verify its authenticity under UV-visible along with optional near infra red illumination. The process involves measurement of energy reflected as photoelectric signals from a security document in at least three optical wavebands by suitably located photodetectors with appropriate wave band filters and the electronic signal processing to distinguish between a genuine document from a fake one for ultimate LED indicator display and audio-visual alarms, hence the detection of fake security document.
    • 通过测量三个或更多个光波段中的入射能量的反射分量来自动检测安全文件的真实性的系统。 该系统包括使用紫外可见光源,可选的近红外光源,光电检测器和相关的感测电路。 光电探测器从安全文件收到的反射能量产生的光电信号用于验证其在紫外可见光下的可靠性以及可选的近红外照明。 该过程涉及通过适当定位的具有适当波段滤波器的光电探测器和电子信号处理来测量在至少三个光波段中来自安全文件的光电信号的能量,以便将真实文件与假的文件区分开以用于最终的LED指示符显示和 视听报警,因此检测到伪造的安全文件。
    • 4. 发明申请
    • Method for storing information in DNA
    • 在DNA中存储信息的方法
    • US20050053968A1
    • 2005-03-10
    • US10812839
    • 2004-03-30
    • Lalit BharadwajAwdhesh ShuklaAmol BhondekarRakesh KumarRam Bajpai
    • Lalit BharadwajAwdhesh ShuklaAmol BhondekarRakesh KumarRam Bajpai
    • G06F17/30G06N3/12G11B20/00G11C13/02C12Q1/68G06F19/00G01N33/48G01N33/50
    • G06N3/123B82Y10/00G11B20/00086G11B20/0021G11C13/0014G11C13/0019G16B30/00
    • DNA is a natural molecular level storage device. Molecular storage devices use each molecule or part of it for storing a character. Thus it is possible to store information million of times than presently used storage devices. For example a JPEG image (i.e. flag of India) having file size of 1981 Bytes can be encrypted using 7924 DNA bases which occupies about 2694.16 nanometers In other words flag of India can be encrypted 8.07×105 times in human genome which comprises 6.4×109 DNA bases and occupy a tiny volume of about 0.02 μm3. A method for storing information in DNA has been developed which includes software and a set of schemes to encrypt, store and decrypt information in terms of DNA bases. The main advantages of the present method over exiting art is that it addresses complete set of extended ASCII characters set and thereby, encryption of all kind of digital information (text, image, audio etc.). First of all, information is, encrypted along with carefully designed sequences known as header and tail primers at both the ends of actual encrypted information. This encrypted sequence is then synthesized and mixed up with the enormous complex denatured DNA strands of genomic DNA of human or other organism.
    • DNA是一种天然分子水平的储存装置。 分子存储装置使用每个分子或其一部分来存储角色。 因此,可以将信息存储在当前使用的存储设备的百万次以上。 例如,具有1981字节的文件大小的JPEG图像(即印度的标志)可以使用7924个DNA碱基进行加密,占用约2694.16纳米。换句话说,印度的旗帜可以在包含6.4的人类基因组中加密8.07×10 5次 x10 <9> DNA碱基,占据体积约0.02μm3。 已经开发了一种用于在DNA中存储信息的方法,其中包括软件和一组用于基于DNA基因来加密,存储和解密信息的方案。 本方法优于现有技术的主要优点在于它解决了完整的扩展ASCII字符集,从而对所有类型的数字信息(文本,图像,音频等)进行加密。 首先,在实际加密信息的两端,信息被加密,并且精心设计的序列称为标题和尾部引物。 然后将该加密的序列合成并与人或其他生物体的基因组DNA的巨大复杂变性DNA链混合。