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    • 1. 发明授权
    • Forensic feature for secure documents
    • 安全文件的取证功能
    • US09399363B2
    • 2016-07-26
    • US11460207
    • 2006-07-26
    • Daoshen BiTung-Feng YehRobert L. JonesJ. Scott Carr
    • Daoshen BiTung-Feng YehRobert L. JonesJ. Scott Carr
    • B41M3/14B42D25/00B42D25/45
    • B42D25/373B41F11/02B41M3/14B41M5/502B42D25/00B42D25/23B42D25/309B42D25/313B42D25/318B42D25/333B42D25/45B42D2033/30B42D2033/32
    • A forensic feature for a secure document comprises a base document layer and a covert material applied to the base document layer. The covert material includes a carrier and forensic material within the carrier. The forensic material includes a ratio of salts or oxides of metals, such as rare earth metals. The ratio is selected to correspond with a source of the document. The forensic material may be mixed into a coating or ink that is applied at predetermined locations on a secure document. The ratio is then measurable from metal ion signals of the salts or oxides. This ratio, or some metric derived from it, may be linked with information embedded elsewhere in the document to enable verification of the document. Another forensic document feature has a forensic metric that is measurable from a covert material in the document, and this forensic metric corresponds to a source of the document. A blocking layer applied over the covert material prevents access to the covert material such that at least partial destruction of the document is required to measure the forensic metric. The blocking layer may have a blocking property that blocks electromagnetic waves from activating the covert material, or blocks the electromagnetic waves from the covert material in response to the activating waves. The blocking layer is deconstructed to access the forensic feature, verify the document and perform forensic tracking.
    • 用于安全文档的取证功能包括应用于基本文档层的基本文档层和隐蔽材料。 隐蔽材料包括载体和载体内的法医材料。 法医材料包括金属的盐或氧化物的比例,例如稀土金属。 该比率被选择为与文档的来源相对应。 法医材料可以混合到在安全文件上的预定位置施加的涂层或油墨中。 然后可以从盐或氧化物的金属离子信号测量该比例。 该比率或从其导出的某种度量可能与文档中其他地方嵌入的信息相关联,以便能够验证文档。 另一个法医文档特征具有可从文档中的隐蔽材料测量的取证度量,并且该法医指标对应于文档的来源。 施加在隐蔽材料上的阻挡层防止对隐蔽材料的访问,使得需要文档的至少部分破坏来测量取证度量。 阻挡层可以具有阻挡电磁波激活隐蔽材料的阻挡特性,或者响应于激活波阻挡来自隐蔽材料的电磁波。 阻塞层被解构以访问取证功能,验证文档并执行取证跟踪。
    • 10. 发明申请
    • ID Document Structure with Pattern Coating Providing Variable Security Features
    • 具有图案涂层的ID文档结构提供可变的安全特性
    • US20080272587A1
    • 2008-11-06
    • US12136681
    • 2008-06-10
    • Daoshen BiRobert L. JonesTung-Feng YehScott D. Haigh
    • Daoshen BiRobert L. JonesTung-Feng YehScott D. Haigh
    • B42D15/10B32B37/14
    • G06K19/00B32B2425/00B42D25/00B42D25/23B42D25/324B42D25/455B42D25/46B42D25/47G06K19/06046
    • A security feature for an identification document and method for making it provide layers of security, including, for example, tamper evidence, optically variable effects, and personalized information that links the security information to the document and its bearer. The feature is made by printing a first material representing first information on a core layer of the document. This first material at least partially overlaps the core layer. One example is Xerographic printing of information about the ID document applicant and the applicant's photo. The process also applies a second material representing second information adjacent to the first material. One example is ink jet printing of personal information with a UV curable ink in the form of a relief pattern on the core layer. Finally, the process applies a laminate layer over the core layer. The laminate layer covers the first and second materials. The first and second materials adhere differently to the laminate and core layers such that removal of the laminate layer from the core layer causes a separation of the first and second materials. The relief pattern is made to give the document a tactile feel as well as create optically variable effects.
    • 用于识别文档的安全特征和用于使其提供安全层的方法,包括例如篡改证据,光学可变效果和将安全信息链接到文档及其承载的个性化信息。 该特征是通过在文档的核心层上打印表示第一信息的第一材料来进行的。 该第一材料至少部分地与芯层重叠。 一个例子是静电印刷关于身份证件申请人和申请人照片的信息。 该过程还应用表示与第一材料相邻的第二信息的第二材料。 一个例子是在核心层上以浮雕图案形式的UV固化油墨喷墨打印个人信息。 最后,该过程在芯层上施加层压层。 层压层覆盖第一和第二材料。 第一和第二材料与层压体和芯层不同地粘附,使得从芯层去除层压层导致第一和第二材料的分离。 浮雕图案是为了使文档具有触感,并产生光学可变的效果。