摘要:
An optical article that can transform from a pre-activated state of functionality to an activated state of functionality is provided. The optical article includes a radio frequency circuitry coupled to the optical article for interacting with a signal, wherein the signal comprises a thermal signal, an electrical signal, or both, and a convertible material in operative association with the radio frequency circuitry for altering the functionality of the optical article from the pre-activated state to the activated state upon interaction with the thermal energy.
摘要:
An optical disc includes an electromagnetic coupling module mounted therein. The electromagnetic coupling module includes a wireless IC chip and a feeder circuit substrate in which a feeder circuit including a resonant circuit having a predetermined resonant frequency is disposed. The electromagnetic coupling module is electromagnetically coupled to a reflective film defining a metal thin film of the optical disc, and the reflective film defines an antenna or radiation pattern of the electromagnetic coupling module.
摘要:
An optical disc used for storing content includes a theft control area selected to render the disc unreadable. The disc must be exposed to radiation of a specific wavelength before it can be read by a regular device. The theft control area may include an area that contains data that instructs the device not to read the disc. This area includes a coating that changes its optical characteristics when exposed to the radiation. The material could be radiochromic or thermochromic. Alternatively, the theft control area includes an RFID device that includes an element that is radiation sensitive. In this embodiment, when the disc is irradiated, the element changes its electrical characteristics.
摘要:
A rotating data carrier with detector wafer is described.The detector wafer consists of a chip and a magnetic coupling loop connected to the chip, which loop is arranged on the central uncoated region of the data carrier.
摘要:
An optical article comprising at least one data side and configured for transformation from a pre-activated state of functionality to an activated state of functionality is provided. The optical article includes an optical data layer for storing data. Furthermore, the optical article includes an electrically responsive layer having a first surface and a second surface, wherein the electrically responsive layer is characterized by an optical absorbance in the range of about 200 nm to about 800 nm. The electrically responsive layer being configured to transform from a first optical state to a second optical state upon exposure to an external stimulus, and being capable of irreversibly transforming the optical article from the pre-activated state of functionality to the activated state of functionality. The electrically responsive layer includes a binder polymeric material, an electrically responsive material, and an electrolyte. Also provided is a method of changing the functionality of the optical article, and an activation system for transforming the optical article from the pre-activated state of functionality to the activated state of functionality.
摘要:
A wireless communication device includes an antenna for wireless communication with a remote interrogator. Several embodiments are disclosed to increase the options available to designers of wireless communication devices. In some embodiments, the antenna is a quarter wavelength long with one end of the antenna being grounded to provide desired impedance matching characteristics. The position of the ground plane relative to the antenna is also varied between embodiments. The connection from a wireless communication chip to the antenna is also varied between embodiments to provide alternate structures.
摘要:
A system for selectively enabling or disabling an optical device, such as an optical disc, includes an optical blocking material bonded or otherwise integrated into the optical device. In a specific embodiment, the optical blocking material includes a dye, such as an energy-sensitive dye. The optical blocking material is initially applied to the optical device during production using a spin coating or other suitable technique. An area of the optical device that will prevent a function of the device is then masked, and sufficient energy is applied to the unmasked area to activate the optical blocking material of the unmasked area while leaving the masked area unactivated. In a specific embodiment, the masked area corresponds with a lead-in area of an optical disc. The optical blocking material of the masked area remains non-transparent to disable the optical device until a second application of energy at a retail location.
摘要:
A method for producing a theft-protected optical medium printing onto a portion an optical medium state change material having at least a first unactivated state and a second activated state, said portion of said optical medium and said state change material selected to cause content on said optical medium to be unreadable by an optical reader when said state change material is in an unactivated state, but to be readable by said optical reader when said state change material is in an unactivated state.
摘要:
Benefit denial systems for securing an asset within a container and methods of use are provided. Such benefit denial systems of the present invention may include a benefit denial device that secures the asset within the container. The benefit denial device may include a base member and at least one locking member, and the asset may be secured therebetween. By securing the asset between the base member and a locking member, the asset will be rendered unusable if a thief attempts to remove the asset from the container. For example, if the asset is a storage medium such as a DVD, then the DVD will break if the thief attempts to remove the DVD from the confines of the benefit denial device.
摘要:
Apparatus and methods for locking and unlocking a lockable container that has an internal locking mechanism are disclosed. The apparatus may include a main body including a channel for receiving the container. A magnetic field source coupled to the main body may emit a magnetic field for actuating a container lock catch mechanism disposed at least partially inside the container. The apparatus may include a channel blocker that may be positioned by actuating a channel lock to selectively prevent the magnetic field source from actuating the catch mechanism of a container lock. The channel lock may be coupled to a cam configured to position at least a portion of the channel blocker in the channel. In some embodiments, the apparatus may include a ramp retractor coupled to the channel blocker wherein the ramp retractor urges the channel blocker down through the channel by action of the magnetic field.