Abstract: A system and method for hidden security feature detection, analysis and authentication using a smart device is disclosed. The smart device can detect and analyze hidden security features using the camera capability of the smart device to capture a digital image, and then analyze and authenticate that image using a security service including a database of security feature data, processing rules, and other information. The security service can support a variety of smart devices and security features. The smart device includes a security-specific autofocus function that allows the smart device to be positioned within a range of distances and angles from a target document that includes hidden/covert security feature(s). The smart device can display an enhanced image showing the hidden security feature(s) and/or report if the security feature is valid or invalid, along with related information, via beeps, vibration, display, text messaging, or other reporting capabilities.

Abstract: A system and method for hidden security feature detection, analysis and authentication using a smart device is disclosed. The smart device can detect and analyze hidden security features using the camera capability of the smart device to capture a digital image, and then analyze and authenticate that image using a security service including a database of security feature data, processing rules, and other information. The security service can support a variety of smart devices and security features. The smart device includes a security-specific autofocus function that allows the smart device to be positioned within a range of distances and angles from a target document that includes hidden/covert security feature(s). The smart device can display an enhanced image showing the hidden security feature(s) and/or report if the security feature is valid or invalid, along with related information, via beeps, vibration, display, text messaging, or other reporting capabilities.

Abstract: A system for dynamically generating a digital image comprising a security feature for a document. The system includes a processor 222 configured to receive data indicative of a security feature to be embedded in the document. The processor 222 generates a digital image having content at least partially specified by the received data. The processor 222 transmits a signal indicative of the generated digital image. The generated digital image has a foreground and a background, at least one of which includes a line screen pattern. The foreground and the background of the digital image are configured such that a scanned reproduction of an original printed version of the digital image is reproduced in an altered form relative to the original printed version.

Abstract: At least a portion of a polarizing layer in the display screen is omitted or removed to temporarily disable image generation but an equivalent polarizing layer is used as a replacement or as a substitute for enabling the display of images on the screen. For instance, the omitted or removed polarizing layer can be replaced in situ or a remote polarizing layer can be substituted through which the images on the display can be seen. The selective reassembly of the display can be used for purposes of security or promotion.

Abstract: A copy protection system for barcode includes a barcode pattern that is printed together with a security pattern that includes a line screen that intersects elements of the barcode pattern. A difference in print density between the barcode elements and the security pattern is sufficient to allow the barcode pattern to be read by a barcode scanner. However, upon reproduction of the printed barcode pattern and security pattern by a copier, the barcode pattern is not similarly readable on the resulting reproduction.

Abstract: A system and method for hidden security feature detection, analysis and authentication using a smart device is disclosed. The smart device can detect and analyze hidden security features using the camera capability of the smart device to capture a digital image, and then analyze and authenticate that image using a security service including a database of security feature data, processing rules, and other information. The security service can support a variety of smart devices and security features. The smart device includes a security-specific autofocus function that allows the smart device to be positioned within a range of distances and angles from a target document that includes hidden/covert security feature(s). The smart device can display an enhanced image showing the hidden security feature(s) and/or report if the security feature is valid or invalid, along with related information, via beeps, vibration, display, text messaging, or other reporting capabilities.

Abstract: A system and method for hidden security feature detection, analysis and authentication using a smart device is disclosed. The smart device can detect and analyze hidden security features using the camera capability of the smart device to capture a digital image, and then analyze and authenticate that image using a security service including a database of security feature data, processing rules, and other information. The security service can support a variety of smart devices and security features. The smart device includes a security-specific autofocus function that allows the smart device to be positioned within a range of distances and angles from a target document that includes hidden/covert security feature(s). The smart device can display an enhanced image showing the hidden security feature(s) and/or report if the security feature is valid or invalid, along with related information, via beeps, vibration, display, text messaging, or other reporting capabilities.

Abstract: A system for dynamically generating a digital image comprising a security feature for a document. The system includes a processor 222 configured to receive data indicative of a security feature to be embedded in the document. The processor 222 generates a digital image having content at least partially specified by the received data. The processor 222 transmits a signal indicative of the generated digital image. The generated digital image has a foreground and a background, at least one of which includes a line screen pattern. The foreground and the background of the digital image are configured such that a scanned reproduction of an original printed version of the digital image is reproduced in an altered form relative to the original printed version.

Abstract: A system and method for hidden security feature detection, analysis and authentication using a smart device is disclosed. The smart device can detect and analyze hidden security features using the camera capability of the smart device to capture a digital image, and then analyze and authenticate that image using a security service including a database of security feature data, processing rules, and other information. The security service can support a variety of smart devices and security features. The smart device includes a security-specific autofocus function that allows the smart device to be positioned within a range of distances and angles from a target document that includes hidden/covert security feature(s). The smart device can display an enhanced image showing the hidden security feature(s) and/or report if the security feature is valid or invalid, along with related information, via beeps, vibration, display, text messaging, or other reporting capabilities.

Abstract: A copy protection system for barcode includes a barcode pattern that is printed together with a security pattern that includes a line screen that intersects elements of the barcode pattern. A difference in print density between the barcode elements and the security pattern is sufficient to allow the barcode pattern to be read by a barcode scanner. However, upon reproduction of the printed barcode pattern and security pattern by a copier, the barcode pattern is not similarly readable on the resulting reproduction.

Abstract: A method for authenticating an identity of a test taker is provided. An online registration portal allows test takers to enter registration information including an uploaded picture. The registration information is sent to a trusted verifier, such as a school administrator or teacher, who verifies the picture matches the registration information. A secured registration ticket is then generated that includes the picture and one or more embedded security features. The registration ticket is mailed to the student in a tamper-evident enclosure with instructions to present the sealed mailer at the testing site for admission. The test proctors then unseal the registration document and confirm the authenticity of the registration ticket and that the person seeking entry matches the verified photo on the ticket before allowing entry.

Abstract: Systems and methods are provided for printing secure documents incorporating hidden security features. In one system, a printer firmware module embeds a security feature in printer instructions to print a secure document. In another system, a software module on a computing device embeds a security feature in printer instructions to print a secure document. In another system, a software module on a computing device provides data to a printer firmware module to embed a security feature in printer instructions to print a secure document. In another system, a print server pre-processor module embeds a security feature in printer instructions to print a secure document. In another system, a security appliance security module generates security features in the form of security instructions that are embedded into a secure document to be printed.

Abstract: At least a portion of a polarizing layer in the display screen is omitted or removed to temporarily disable image generation but an equivalent polarizing layer is used as a replacement or as a substitute for enabling the display of images on the screen. For instance, the omitted or removed polarizing layer can be replaced in situ or a remote polarizing layer can be substituted through which the images on the display can be seen. The selective reassembly of the display can be used for purposes of security or promotion.

Abstract: A verifiable/copy-protected document features a combination of nearly identical line-screen patterns for embedding latent images within visually integrated settings. The latent images can be detected for purposes of verification with a matching viewer but are indistinguishable from their visually integrated settings under ordinary viewing conditions. The line-screen patterns, which can be incorporated into document artwork, are printed at certain combinations of line frequencies and print densities so that the line-screen patterns digitally reproduce as a largely undifferentiated solid tint.

Abstract: A document and a related viewer for the document are constructed as image files capable of transmission to a printing site. The document file contains information for printing a document having hidden security indicia, and the viewer file contains information for printing a document viewer having a decrypting portion for revealing the hidden security indicia in the document.

Abstract: A document comprising a latent security image that is visible when the document is reproduced after being scanned by a standard commercial bank scanner. The security image comprises a plurality of lines, dots, or spots having a frequency and a density such that the image is reproduced after being scanned by the standard commercial bank scanner. A method of making a reproducible document comprising a security device comprises generating the document by creating an original containing the security device, scanning the original to a digital computer using a conventional scanner, and converting the scanned original to a digital image file which is printable via a digital press, a color copier, etc. A document comprises a security image that is not visible under ordinary light, and is visible when the document is exposed to a predetermined type of light. The security image is printed with an ink visible under one of UV light, infrared light, X-rays, of Gamma rays.

Abstract: A compound security feature is formed by printing latent images together with visually integrated settings using an invisible ink. Even if illuminated by a wavelength capable of rendering the inks visible, the latent images remain visually indistinguishable from their visually integrated settings. However, the latent images and visually integrated settings differ in one or more less obvious ways so that the latent images can be distinguished by using a visual aid.

Abstract: A latent image is incorporated into an apparent solid-color background for representing a desired solid-color background having a target color. An underlying solid-color background is printed on a print medium using a first color composition that differs from the target color. Line-screen patterns embedding a latent image in a visually integrated setting are printed over the solid-color background using a second color composition that differs from both the first color composition and the target color. The visual characteristics of the line-screen patterns forming the latent image and the visually integrated setting are matched for rendering the latent image practically indistinguishable from the visually integrated setting without a visual aid. The print densities of the line-screen patterns and the first and second color compositions are interrelated so that the line-screen patterns in combination with the underlying solid-color background produce the apparent solid-color background in the target color.

Abstract: A document containing security images which enable original documents to be distinguished from copies of the originals. The document may include a background of a first color and an image formed of a second and third color which appear to be the first color when viewed together, providing a hidden image which does not appear in reproductions of the document. The document may contain a background of a first color printed with lines at a first angle, and an image of the first color but having lines printed at a different angle, providing a hidden image which does not appear in reproductions of the document. The document may contain a background of printed with lines at a first angle and a predetermined line frequency, and an image printed with lines at a second angle and at a line frequency less the one half of the line frequency of the background, providing a substantially hidden image which appears in a reproduction of the document.

Abstract: A verifiable/copy-protected document features a combination of nearly identical line-screen patterns for embedding latent images within visually integrated settings. The latent images can be detected for purposes of verification with a matching viewer but are indistinguishable from their visually integrated settings under ordinary viewing conditions. The line-screen patterns, which can be incorporated into document artwork, are printed at certain combinations of line frequencies and print densities so that the line-screen patterns digitally reproduce as a largely undifferentiated solid tint.