Abstract: Various embodiments and methods relating to the writing of a label on a disc are disclosed.

Abstract: Various apparatuses and methods for laser positioning in an optical disc drive are provided. In one embodiment, a laser positioning apparatus is provided in which a first positioning assembly positions a first laser beam generated by a first laser and directed toward a first side of an optical disc site in the optical disc drive. A second positioning assembly positions a second laser beam generated by a second laser and directed toward a second side of the optical disc site in the optical disc drive. The second positioning assembly positions the second laser beam independent of the positioning of first laser beam by the first positioning assembly, the second positioning assembly further comprising an actuator that positions the second laser beam, and an elastic member that opposes a movement of the actuator.

Abstract: A method for forming an optical disc includes forming a first disc portion, forming a second disc portion, coupling the first disc portion to the second disc portion, wherein forming the first disc portion includes forming a data recording layer, and wherein forming the second disc portion includes forming a material layer including a plurality of embossed features having a depth of approximately ¼? for optimized encoder compatibility, where ? is the wavelength of a light source being used to sense the embossed features.

Abstract: An optical scanning device and method are provided for marking an optically sensitive layer. The device can include an optical source capable of emitting a beam. At least one pivot can be configured to enable the beam to travel through a beam output arc. In addition, a mirror surface can be oriented toward the optically sensitive layer. The mirror surface can be configured to reflect the beam within the defined beam output arc onto a plurality of locations of the optically sensitive layer.

Abstract: An optical system for writing on a double-sided medium is disclosed. A beam source is configured to generate a light beam in a first direction relative to a first side of the medium. A steering mechanism is able to direct the light beam in a second direction substantially along the first side, such that the light beam is configured to impinge on a first reflector. The first reflector is able to reflect the light beam in a third direction, such that the light beam is routed outside a substantially opaque annulus of the medium, and is configured to impinge on a second reflector. The second reflector is able to reflect the light beam in a fourth direction substantially opposite the second direction, such that the light beam is configured to impinge on a third reflector. The third reflector is able to reflect the light beam in a fifth direction substantially toward a second side of the medium opposite the first side, such that the light beam strikes the second side of the medium.

Abstract: This invention relates to a method of determining the location of a plurality of laser spots, comprising: determining a first distance of a first laser spot; determining a second distance of the first laser spot; determining a first distance of a second laser spot; determining a second distance of the second laser spot; and adjusting, if necessary, the locations of the first and second laser.

Abstract: Optically visible marks are disposed on a medium by exposing at least a portion of a coating disposed on the medium to thermal energy from a thermal print head in an optical disc drive.

Abstract: An optical mechanism includes an optical beam-generating mechanism and a light pipe. The optical-beam generating mechanism is to generate an optical beam. The light pipe is to guide the optical beam to an optically writable surface.

Abstract: An optical disc drive includes an optical mechanism and a preheating mechanism. The optical mechanism optically writes a label to an optically writable label area of an optical disc inserted into the optical disc drive, by heating pixels on the optically writable label area of the optical disc. The preheating mechanism, separate from the optical mechanism, preheats the optical disc prior to the optical mechanism heating the pixels on the optically writable label area of the optical disc.

Abstract: A method for detecting and optimizing the quality of a mark made by a laser on a recording medium, comprising (a) recording a test mark at a selected level of laser power and a selected speed of movement of the recording medium, (b) measuring at least one dimension of the test mark, (c) comparing the at least one dimension of the test mark to a stored reference value for at least one reference dimension, and (d) determining whether the at least one dimension of the test mark is comparable to the at least one dimension of the stored reference value.

Abstract: This invention relates to an optical disk writing and printing apparatus comprising; a motor operatively connected to an optical pickup unit and an optical print head such that the motor is engagingly connected to the optical pickup unit for assisting the optical pickup unit in writing data on one side of an optical disk and engagingly connected to the optical print head for assisting the optical print head in printing markings on another side of the optical disk.

Abstract: Embodiments of methods, apparatuses, devices and systems associated with a system and/or method for adjusting a laser beam.

Abstract: A method of compensating for output variations in laser power output over time in a system using a laser to record visible marks on an optical disc, the method comprising (a) applying a test light beam from the laser to the optical disc to determine a test value of an optical parameter, (b) determining a difference between the test value and a predetermined reference value for the optical parameter, and (c) adjusting the laser power output to compensate for the difference.

Abstract: Systems and methods for calibrating laser write power in a digital media drive are disclosed. The method includes writing to a calibration portion on a digital media labeling layer with energy from a laser. The writing includes using at least two different laser power settings within the calibration portion. The method also includes measuring a parameter in the calibration segment, the parameter being indicative of the reflectivity of the labeling layer, and determining a calibrated laser write power setting based on the measured parameter and the at least two different laser write power settings.

Abstract: For at least some layers of a number of stacked layers of an optical disc that correspond to different colors, an optical beam is selectively impinged on a region of the optical disc. The optical beam has a wavelength to which the layer is uniquely sensitive as compared to other of the layers, to sufficiently heat the layer so as to cause the region to change from at least substantially translucent to a color to which the layer corresponds.

Abstract: A method comprising; installing a written media that contains marks and un-written areas, scanning the written marks and un-written areas concurrently, and determining the quality of the marks by determining a delta optical density.

Abstract: Various systems, methods, and programs embodied on a computer-readable medium are provided for calibrating a laser power in an optical disc drive. In one embodiment, a plurality of marked segments of a calibration pattern are created on a label surface of an optical disc with a laser in the optical disc drive. The marked segments are created by the application of assorted quanta of radiant energy from the laser. The reflectivity of the marked segments is measured. Ultimately, the laser power of a laser in the optical disc drive is set for writing a label based upon the reflectivities measured for each of the marked segments for each quantum of radiant energy.

Abstract: Various systems, methods, and programs embodied on a computer-readable medium are provided for calibrating a laser power in an optical disc drive. In one embodiment, a range of reflectivity of an optical disc in the optical disc drive is established. A calibration pattern of marked segments is written to the optical disc and the reflectivity of the marked segments is measured. An average reflectivity is generated for each one of a plurality of laser power settings within the range of reflectivity, thereby obtaining a curve that depicts the average reflectivity with respect to the laser power settings. The laser power setting at a knee of the curve is identified and a slope of the curve at a position on the curve where the average reflectivity decreases as the laser power settings increase is determined. The laser power setting is calculated that results in a predefined darkness based upon the laser power setting at the knee and based upon the slope.

Abstract: A method and means are provided for visually marking a recording medium by inducing a phase change in a light-sensitive surface by heat absorption from laser radiation. The method comprises applying the laser radiation to a desired portion of the light-sensitive surface according to a first power profile for a first period sufficient to substantially obtain a color change at the desired portion, and applying the laser radiation to the desired portion of the light-sensitive surface according to a second power profile for a second period sufficient to complete the color change at the desired portion.

Abstract: A scalable and portable disc player or recorder for containing and transferring audio, video or computer data to and from an optical disc of various sizes. The casing of the disc player provides a case scaling mechanism having a set of pivotal wings and slidable sleeves that can be adjusted to accommodate various optical disc sizes. This same process changes the structural size of the disc player casing.