摘要:
A method for printing one or more desired features on a polymeric substrate. In an example embodiment, the method includes receiving an ink that includes a bio-reactive indicator material, and employing a piezoelectric printhead to deposit the ink on a polymeric substrate. The polymer substrate with the ink deposited thereon represents a diagnostic testing device for performing a test on a material sample. The method further includes employing UltraViolet (UV) light to cure the ink. The ink may include an electrically conductive material. A UV light source may be coupled to a piezoelectric printhead and actuated in response to a control signal from a controller to facilitate curing materials deposited on the polymeric substrate.
摘要:
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.
摘要:
An optical media device comprises a mask layer placed over a data layer, and that includes chemical ingredients designed to render the data layer unreadable by an optical reader in a first initial state, and allow the data layer to be read when converted to a second state. The mask layer is optically opaque in the first state, and is optically transparent in the second state. The chemical ingredients include a dye that absorbs light in the visible light and/or optical reader spectrum, and a further chemical that is activatable to shift the dye's absorption wavelength so the data layer can be read by the optical reader. The activation source is radiative emission having a wavelength different from that of visible light and/or the optical reader. The activation source can be used at the point of sale of the device to render the device readable upon purchase.
摘要:
A system for selectively inhibiting unauthorized use of an optical device. In an illustrative embodiment, the system implements an optical-device play-prevention system and copy-prevention system. The system includes a first set of data that is encoded via pit structures of the optical disc. A read system, such as a disc drive, which includes a read laser, is adapted to read the first set of data. A first material, which is positioned on or within the disc, changes transparency to laser light from the read laser in response to a first predetermined energy, such as ultrasound. A second material that is positioned on or within the disc temporarily changes transparency to the laser light, in response to a second predetermined energy, such as energy from the read laser. Changes in transparency of the first material and the second material change accessibility of the first set of data to the read system. The system further includes instructions executable by the read system for enabling or disabling reading, playing, and/or copying of the optical disc by the read system based on the accessibility of the first data to the read system.
摘要:
Copy-protected optical medium utilizing a composition comprising a transient optical state change security materials constrained to change the optical state light absorption at a wavelength of about 400 nm and an electron transfer agent.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.