"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review ; March edition, 1825
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| Application No. | Application Title | Issue Date |
| 20110123911 | 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 compri... | 05/26/2011 |
| 20100273096 | PHOTOPOLYMER MEDIA WITH ENHANCED DYNAMIC RANGE Dynamic range enhancing dopants for photopolymeric media are described. Also described are optical articles using these dopants and methods for making such optical articles.... | 10/28/2010 |
| 20100074089 | METHOD FOR FINDING AND TRACKING SINGLE-MODE OPERATION POINT OF EXTERNAL CAVITY DIODE LASERS An apparatus comprising: a processor for determining if a laser is operating in a single-mode state and for determining the degree to which one of one or more tunable parameters for the laser must be adjusted so that laser operates in a single-mode state if not operatin... | 03/25/2010 |
| 20100020669 | METHOD FOR HOLOGRAPHIC DATA RETRIEVAL BY QUADRATURE HOMODYNE DETECTION Systems and methods are provided for recovering data in a holographic memory system. One embodiment of these systems and methods uses homodyne detection to introduce a local oscillator beam into a reconstructed data beam of the recovered hologram. An image of the combin... | 01/28/2010 |
| 20100020373 | HOLOGRAPHIC STORAGE MEDIUM AND METHOD FOR GATED DIFFUSION OF PHOTOACTIVE MONOMER An optical medium is provided. The optical medium comprises: a diffusion-controlling matrix framework; at least one photoactive monomer attached to the diffusion-controlling matrix framework in a first state of the optical medium, wherein the at least one photoactive mo... | 01/28/2010 |
| 20100014133 | METHOD TO MODIFY AND APPLY EDGE SEAL MATERIALS IN LAMINATED MEDIA An article with a pair of substrates made from a thermoplastic and each having an outer edge; a holographic storage medium positioned between the substrates such that the holographic storage medium has an exposed outer edge area proximate the outer edges of the substrat... | 01/21/2010 |
| 20090323737 | System and devices for improving external cavity diode lasers using wavelength and mode sensors and compact optical paths External cavity laser (ECL) systems and methods for measuring the wavelength of the ECL by using a portion of the positional light received by the position sensitive detector (PSD) to determine the position of a wavelength tuning element (such as a diffraction grating o... | 12/31/2009 |
| 20090253050 | 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.... | 10/08/2009 |
| 20090207710 | USE OF FEEDBACK ERROR AND/OR FEED-FORWARD SIGNALS TO ADJUST CONTROL AXES TO OPTIMAL RECOVERY POSITION OF HOLOGRAM IN HOLOGRAPHIC DATA STORAGE SYSTEM OR DEVICE A method for adjusting at least one alignment control axis of a holographic data storage system or device to or towards a sufficiently optimal recovery position for recovery of a hologram based on a derived feedback error signal and/or a derived feed-forward signal. For... | 08/20/2009 |
| 20090162017 | 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 subasse... | 06/25/2009 |
| 20090103416 | LAYOUT METHOD FOR MULTIPLEXED HOLOGRAMS Methods are disclosed for determining the layout of cure sites/cure spots and/or stack positions on the recordable section of a holographic storage medium. Also disclosed are methods for carrying out pre-curing and stack writing routines for pre-curing, in an appropriat... | 04/23/2009 |
| 20090092160 | EXTERNAL CAVITY LASER WITH A TUNABLE HOLOGRAPHIC ELEMENT Embodiments of systems and methods are provided for a tunable laser device. The tunable laser device may include a tunable Bragg reflector that allows its wavelength to be tuned via temperature and/or pressure. This Bragg reflector may include holographic material in wh... | 04/09/2009 |
| 20090080042 | 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 device... | 03/26/2009 |
| 20090017687 | 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 mem... | 01/15/2009 |
| 20090014522 | ENABLING HOLOGRAPHIC MEDIA BACKWARDS COMPATIBILITY WITH DUAL-USE MEDIA CARD CONNECTOR A holographic read only memory card which can be coupled to and read by a card reader to which electronic read only memory cards can also be coupled to and read by the card reader is disclosed. The holographic read only memory card comprises: a housing having a compartm... | 01/15/2009 |