Abstract: Light sensitive materials applied in shipping materials, including security seals and tear tape, for authentication, discrimination and recognition of items.

Abstract: A method and system for providing copy-protected optical medium using a substrate having information stored thereon in information pits and information lands, wherein the information lands comprise lands in two different planes.

Abstract: A portable authentication device and method of authenticating products or packaging by analyzing key ingredients on products or on product packaging is disclosed. Light-sensitive compounds can be used to identify the product or product packaging. The product or product package may include visible or invisible ink containing a particular light-sensitive compound. The ink may be printed in one or more locations on the product or product packaging to produce an authentication mark, such as a bar code. The device includes an assembly for providing a source of light to irradiate the ink containing the light-sensitive compound on the sample product or product package, an optical detector to detect certain spectral properties emitted or absorbed by the irradiated ink and a controller to determine the authenticity of the sample product or product package by comparing the emitted or absorbed properties to a standard.

Abstract: Aryl phosphate derivatives of d4T with para-bromo substitution on the aryl group show markedly increased potency as anti-HIV agents without undesirable levels of cytotoxic activity. In particular, these derivatives are potent inhibitors of HIV reverse transcriptase. In a preferred aspect of the present invention, the phosphorus of the aryl phosphate group is further substituted with an amino acid residue that may be esterified or substituted, such as a methoxy alaninyl group.

Abstract: Method and system for detecting authenticate products based upon alteration of emission characteristics due to interaction of the emissions with the product and the container.

Abstract: Method and system for detecting authenticate products based upon alteration of emission characteristics due to interaction of the emissions with the product and the container.

Abstract: A method and system for providing copy-protected optical medium using a substrate having information stored thereon in information pits and information lands, wherein the information lands comprise lands in two different planes.

Abstract: A method and apparatus for preventing copying of data from optical disks. A locus on optical disk is initially read to produce a signal and is then re-read by a reader to produce a second signal. The signal detected upon re-reading is different from the signal that is detected upon initial sampling. A method and apparatus for controlling access to an optical disk, such as an optically readable disk. Light sensitive or other materials that are adapted to change state and affect reading of an optical disk are used to control access to data that may be stored on optical disk and/or to control use of the optical disk.

Abstract: A method of authenticating products or packaging by analyzing key ingredients on products or on product packaging is disclosed. Light-sensitive compounds can be used to identify the product or product packaging. The product or product package may include visible or invisible ink containing a particular light-sensitive compound. One or more light-sensitive compounds and ink, if used, may be printed in one or more locations on the product or product packaging to produce an authentication mark to inhibit inadvertent or intentional removal of the mark, thereby rendering the mark tamper-resistant. The mark is sealed to isolate the mark from the environment. A device may be used to irradiate the mark and read light absorption or emission. A controller determines the authenticity of the mark by comparing the emitted or absorbed properties to a standard.

Abstract: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state when exposed to a wavelength of about 630 nm to about 660 nm and software code to detect such change in optical state.

Abstract: A method and system for providing copy-protected optical medium using transient optical state change security materials capable of changing optical state when exposed to a wavelength of about 630 nm to about 660 nm and software code to detect such change in optical state.

Abstract: Novel compounds that are potent inhibitors of HIV reverse transcriptase (RT) are described in the invention. Thes novel compounds also inhibit replication of a retrovirus, such as human immunodeficiency virus-1 (HIV-1). The novel compounds of the invention include analogs and derivatives of phenethylthiazolylthiourea (PETT), of dihydroalkoxybenzyloxopyrimidine (DABO), and of 1-[(2-hydroxyethoxy)methyl]-6-(phenylthio)thymine (HEPT). The invention additionally provides a composite HIV reverse-transcriptase (RT) nonnucleoside inhibitor (NNI) binding pocket constructed from a composite of multiple NNI-RT complexes. The composite RT-NNI binding pocket provides a unique and useful tool for designing and identifying novel, potent inhibitors of reverse transcriptase.

Abstract: Novel compounds that are potent inhibitors of HIV reverse transcriptase (RT) are described in the invention. Thes novel compounds also inhibit replication of a retrovirus, such as human immunodeficiency virus-1 (HIV-1). The novel compounds of the invention include analogs and derivatives of phenethylthiazolylthiourea (PETT), of dihydroalkoxybenzyloxopyrimidine (DABO), and of 1-[(2-hydroxyethoxy)methyl]-6-(phenylthio)thymine (HEPT). The invention additionally provides a composite HIV reverse-transcriptase (RT) nonnucleoside inhibitor (NNI) binding pocket constructed from a composite of multiple NNI-RT complexes The composite RT-NNI binding pocket provides a unique and useful tool for designing and identifying novel, potent inhibitors of reverse transcriptase.

Abstract: Light sensitive materials applied in shipping materials, including security seals and tear tape, for authentication, discrimination and recognition of items.

Abstract: A computer-readable medium having material at a select position therein and containing instructions for controlling an optical reader to cause the optical reader to re-read the position having the material one or more times to elicit a measurable parameter at such position.

Abstract: Methods for the preparation of 7-(dipropylamino)pheno-thiazin-3-ylidene]-dipropylamine

Abstract: A method and system for providing copy-protected optical medium using a substrate having information stored thereon in information pits and information lands, wherein the information lands comprise lands in two different planes.

Abstract: A method and apparatus for controlling access to a storage medium, such as an optically readable medium. Light sensitive or other materials that are adapted to change state and affect reading of a storage medium are used to control access to data that may be stored on optical medium and/or to control use of the medium.

Abstract: A device for preventing and controlling copying of data from an optical storage disc utilizing physical modifications in or on a storage capable optical disc. Also described is a method for authenticating and controlling reading or copying of information or data in or on optical discs as, for example, wherein a locus on or in the optical storage disc is initially read to produce a signal and is then re-read by a reader to produce a second signal. The signal detected upon re-reading is different from the signal that is detected upon initial sampling.

Abstract: A method and apparatus for controlling access to a storage medium, such as an optically readable medium. Light sensitive or other materials that are adapted to change state and affect reading of a storage medium are used to control access to data that may be stored on optical medium and/or to control use of the medium.