Patent application number | Description | Published |
20080266705 | Servo error detection and compensation utilizing virtual data tracking servo methods - A method for detecting errors in a servo system of a magnetic storage drive includes writing a plurality of data tracks at a pitch, detecting a position of an edge of at least two of the data tracks under control of a servo system (e.g., an optical or magnetic servo system), and determining an error in the servo system based on the detected positions and known pitch of the data tracks. Differences in the track edge positions of the tracks from the positions at which they were written may indicate errors in the optical servo system (e.g., non-linearity errors, as well as other errors such as electrical, temperature, or the like). Determined errors may be stored with a look-up table of positional errors or used to normalize a position algorithm associated with the servo system. | 10-30-2008 |
20090213488 | METHODS, SYSTEMS AND APPARATUS FOR REDUCING THE EFFECTS OF TAPE DIMENSIONAL STABILITY - A method, system, apparatus, and computer readable medium storing instructions for recording data tracks and a method and system for reading data tracks. For recording data tracks, virtual boundary of a first data track recorded on the storage medium is determined. The recording element is positioned based on the determined virtual boundary of the first track and a second data track is recorded by the positioned recording element. For reading data tracks, a first virtual boundary of a first data track and a second virtual boundary of the first data track are determined and a reading element is positioned at a center of the first data track based on the determined virtual boundaries. In the system of reading recorded data tracks, a number of forward reading elements and backward reading elements are provided. The forward reading elements have different pitches. | 08-27-2009 |
Patent application number | Description | Published |
20090047352 | Colourant Compositions and Their Use - A fibre colourant and an ink composition are provided which comprise monodisperse particles capable of forming a colloidal crystal that diffracts light having a wavelength in a range that corresponds to the wavelength of visible light. The use of such compositions in colouring substrates is also provided. | 02-19-2009 |
20090075038 | Printing formulations - The present invention relates to a printing formulation comprising monodisperse particles and particles, wherein the particles have a largest dimension which is at least 6 times larger than the largest dimension of the monodisperse particles, as well as to the use of these formulations for printing and to substances printed with these formulations. | 03-19-2009 |
20090133605 | Colourant Compositions - The present invention relates to novel monodisperse particles, which comprise at least one broad spectrum absorber contrast agent and/or at least one precursor of a broad spectrum absorber contrast agent, which is encapsulated in the monodisperse particle, novel colourant compositions, to uses thereof in colouring a substrate and to substrates that are coloured (at least in part) using the colourant compositions. | 05-28-2009 |
20100040741 | Dyeing and/or Printing Formulations Comprising Monodisperse Particles - The present invention relates to a printing formulation comprising monodisperse particles, at least one curing agent, at least one initiator and a solvent, as well as to the use of these formulations and to substances printed with these formulations. | 02-18-2010 |