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| Number | Title | Issue Date |
| 8179579 | HROM replication methods, devices or systems, articles used in same and articles generated by same HROM replication methods, devices or systems are disclosed herein. Also disclosed herein are articles comprising conical reference (reconstruction) beam hologram elements to generate conical or conical like reference (reconstruction) beams which may be used in such ... | 05/15/2012 |
| 8141782 | Dual-use media card connector for backwards compatible holographic media card A card connector which can interchangeably couple a holographic memory card or an electronic memory card to a card reader and/or writer which can then read and/or write to the coupled holographic memory card or electronic memory card. The card connector comprises: a... | 03/27/2012 |
| 8133639 | Holographic recording medium with control of photopolymerization and dark reactions The present invention relates to a system, as well as articles and holographic recording medium comprising the system, where the system comprises: a polymerizable component comprising at least one photoactive polymerizable material; and a photoinitiator component co... | 03/13/2012 |
| 8130430 | Holographic storage device and method using phase conjugate optical system A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage de... | 03/06/2012 |
| 8120832 | High speed electromechanical shutter An electromechanical shutter device comprising a base member and a shutter assembly comprising: an electrical current source member; a shutter member movable between a light beam blocked position and a light beam passed position; a light beam blocking member associa... | 02/21/2012 |
| 8079040 | Loading and unloading mechanism for data storage cartridge and data drive The present invention provides loading and unloading mechanisms, and data drives for data storage cartridges. Embodiments of the cartridge loading and unloading mechanisms for a data storage cartridge may: operate in a manner such that the drive door of the data dri... | 12/13/2011 |
| 8077366 | Holographic storage device having an adjustment mechanism for a reference beam A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage de... | 12/13/2011 |
| 8071260 | Thermoplastic holographic media The present invention provides an article comprising: a binder component, a polymerizable component; and a photoinitiator component comprising at least one photoinitiator that causes the polymerizable component to form a polymer or co-polymer when a portion of the p... | 12/06/2011 |
| 8062809 | Holographic storage media Described are holographic storage mediums and method of making holographic storage mediums. The holographic storage mediums may have write components that bind to the matrix to form a pattern in the media. The holographic storage mediums may also be rewriteable.... | 11/22/2011 |
| 7848595 | Processing data pixels in a holographic data storage system A method for processing data pixels in a holographic data storage system is disclosed. The method includes assigning predetermined reserved blocks throughout each data page, where each reserved block comprises known pixel patterns, determining position errors of the... | 12/07/2010 |
| 7813017 | Method and system for increasing holographic data storage capacity using irradiance-tailoring element A method and system is disclosed for increasing the holographic storage capacity of a holographic recording medium using an irradiance-tailoring (e.g., optical) element by changing the irradiance profile of the modulated object beam (e.g., by imparting motion to an ... | 10/12/2010 |
| 7774681 | Data protection system The present invention provides systems and methods for logically organizing data for storage and recovery on a data storage medium using a multi-level format. The present invention also provides systems and methods for protecting data stored on data storage medium s... | 08/10/2010 |
| 7774680 | Data protection system The present invention provides systems and methods for logically organizing data for storage and recovery on a data storage medium using a multi-level format. The present invention also provides systems and methods for protecting data stored on data storage medium s... | 08/10/2010 |
| 7773276 | Method for determining media orientation and required temperature compensation in page-based holographic data storage systems using data page Bragg detuning measurements Methods and systems for calculating a wavelength to use for a reference beam in recovering data from a holographic storage medium along with calculating a rotation and a tilt for the storage medium in data recovery. These systems and method include determining inten... | 08/10/2010 |
| 7742211 | Sensing and correcting angular orientation of holographic media in a holographic memory system by partial reflection, the system including a galvano mirror A holographic memory system is disclosed. The holographic memory system comprises: a light source configured to generate a light beam; a photosensitive holographic storage medium configured to at least partially reflect the light beam; and an alignment module config... | 06/22/2010 |
| 7742209 | Monocular holographic data storage system architecture A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage de... | 06/22/2010 |
| 7739701 | Data storage cartridge loading and unloading mechanism, drive door mechanism and data drive The present invention provides loading and unloading mechanisms for data storage cartridges, drive door mechanisms for data drives, and data drives comprising such loading and unloading and/or drive door mechanisms. Embodiments of the cartridge loading and unloading... | 06/15/2010 |
| 7738736 | Methods and systems for holographic data recovery A method for holographic storage data recovery in a holographic storage system is presented. One exemplary method includes detecting a stored image at a detector such that the image is oversampled. A relationship is determined between a location of the detected imag... | 06/15/2010 |
| 7738153 | Magnetic field position feedback for holographic storage scanner The present invention provides a scanner comprising: a base member; a scanning beam reflective member having a first tilt axis and a second tilt axis orthogonal to the first tilt axis; a mounting assembly for mounting the scanning beam reflective member on the base ... | 06/15/2010 |
| 7736818 | Holographic recording medium and method of making it A laminated holographic recording medium having (a) a first substrate having a through-hole and (b) a solid polymer matrix layer that records holographic data laminated to the first substrate and a method of manufacturing thereof are disclosed. The method of manufac... | 06/15/2010 |
| 7710624 | Controlling the transmission amplitude profile of a coherent light beam in a holographic memory system Holographic systems which shape coherent light beams are disclosed. These holographic systems may beam-shaping devices positioned in the path of coherent light beams to shape a coherent light beam into an essentially diffraction noise free coherent light beam of pre... | 05/04/2010 |
| 7704643 | Holographic recording medium with control of photopolymerization and dark reactions The present invention relates to a system, as well as articles and holographic recording medium comprising the system, where the system comprises: a polymerizable component comprising at least one photoactive polymerizable material; and a photoinitiator component co... | 04/27/2010 |
| 7678507 | Latent holographic media and method A holographic recording medium having a polymer matrix comprising a developer, wherein the holographic recording medium is capable of recording a latent hologram and the developer is capable of developing the latent hologram into a readable hologram by activation of... | 03/16/2010 |
| 7675025 | Sensing absolute position of an encoded object In one aspect of the present invention, a device for sensing an absolute position of an encoded object, comprising: a position tracking module comprising: a track illumination module configured to illuminate the encoded object with one more light beams, and to detec... | 03/09/2010 |
| 7649661 | Holographic storage device having a reflective layer on one side of a recording layer A method is provided for manufacturing a holographic medium by recording holograms in transmission geometry, and applying a reflective layer to one side of the holographic recording material after recording is completed (alternatively, for example, the playback syst... | 01/19/2010 |
| 7638755 | Sensing absolute position of an encoded object In one aspect of the present invention, a device for sensing an absolute position of an encoded object, comprising: a position tracking module comprising: a track illumination module configured to illuminate the encoded object with one more light beams, and to detec... | 12/29/2009 |
| 7633662 | Holographic drive head alignments Structures, subassemblies, devices, systems, and subsystems selected from: (1) a unitary holographic drive head assembly mounting structure; (2) an assembly including a unitary holographic drive head assembly mounting structure and a plurality of holographic drive h... | 12/15/2009 |
| 7623279 | Method for holographic data retrieval by quadrature homodyne detection Systems and methods for recovering data in a holographic memory system. The systems and methods use homodyne detection to introduce a local oscillator beam into a reconstructed data beam of the recovered hologram. An image of the combined beam comprising the reconst... | 11/24/2009 |
| 7589877 | Short stack recording in holographic memory systems The present invention provides one or more books of holograms recorded in a recording medium, wherein two or more short stacks of the one or more books have locations that differ from each other by a movement difference. The present invention also provides methods a... | 09/15/2009 |
| 7551336 | Miniature single actuator scanner for angle multiplexing with circularizing and pitch correction capability The present invention provides a scanner comprising: a reflector component; means supporting the reflector component for pivoting with respect to the MCR to provide a scan which is stationary with respect to the OCR; means for enabling the support means to provide c... | 06/23/2009 |
| 7548358 | Phase conjugate reconstruction of a hologram Methods and systems are provided for obtaining a phase conjugate reconstruction beam for use in retrieving holographic information from a holographic storage medium. These methods and systems include generating a coherent light beam that is a reproduction of the ref... | 06/16/2009 |
| 7532374 | Shift tolerant lens optimized for phase conjugating holographic systems A new type of FT lens is provided that improves phase conjugation in holographic data systems. This type of FT lens has a uniquely large isoplanatic patch. This enables relaxed assembly tolerances, asymmetric reader/writer architectures, and compensation for tilted ... | 05/12/2009 |
| 7521154 | Holographic storage media Described are holographic storage mediums and method of making holographic storage mediums. The holographic storage mediums may have write components that bind to the matrix to form a pattern in the media. The holographic storage mediums may also be rewriteable.... | 04/21/2009 |
| 7495838 | Collimation lens group adjustment for laser system A laser system comprising a laser assembly for generating a light beam, and collimation assembly movable axially with respect to the laser assembly and being positioned in the optical path of the light beam. The collimation assembly comprises a collimation lens grou... | 02/24/2009 |
| 7492691 | Supplemental memory having media directory Disclosed is a holographic data storage device including holographic media for containing data, writing data to and reading data from. The storage device also includes at least one supplemental memory for containing at least a portion of a directory of the data cont... | 02/17/2009 |
| 7480085 | Operational mode performance of a holographic memory system Aspects of the present invention are generally directed to a holographic system. Generally, aspects of the present invention are directed to allocating power of a light beam generated by a coherent light source among the various discrete light beams used in a hologr... | 01/20/2009 |
| 7475413 | Data storage cartridge having a reduced thickness segment A data storage cartridge is described. The cartridge may include a housing having a top, a bottom, a front side, a back side, a first lateral side, and a second lateral side, said housing having a first media access aperture on the top of the housing; and a data sto... | 01/06/2009 |
| 7466411 | Replacement and alignment of laser The present invention relates to embodiments of: (1) a unitary holographic drive head assembly mounting structure; (2) an assembly comprising a unitary holographic drive head assembly mounting structure and a plurality of holographic drive head components and/or sub... | 12/16/2008 |
| 7453618 | Miniature single actuator scanner for angle multiplexing with circularizing and pitch correction capability The present invention provides a scanner comprising: a reflector component; means supporting the reflector component for pivoting with respect to the MCR to provide a scan which is stationary with respect to the OCR; means for enabling the support means to provide c... | 11/18/2008 |
| 7435941 | Methods for measuring optical characteristics by differential diffractive scanning Methods and systems for measuring and/or inspecting a characteristic of an optical article are provided. In one example, a method includes illuminating an optical article with a focused beam of light, detecting the light with a sensor after interacting with the opti... | 10/14/2008 |