Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8233205 | Method for holographic data retrieval by quadrature homodyne detection A holographic device is provided for recovering data in a holographic memory system. The device 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... | 07/31/2012 |
| 8208185 | Method and apparatus for the production of polarization holograms The present invention relates to a method for the production of polarization holograms, an apparatus for the production of polarization holograms and the use of the polarization holograms according to the invention as data stores, security features or diffractive op... | 06/26/2012 |
| 8125698 | Systems and methods for producing wide field-of-view holographic displays Hologram recording devices and techniques can be employed to produce wide field-of-view holograms. A lens can be used to couple an object beam into a holographic recording material without substantially changing the angle of incidence of the object beam. When displa... | 02/28/2012 |
| 8107145 | Reproducing device and reproducing method A reproducing device for performing reproduction regarding a hologram recording medium where a hologram page is recorded in accordance with signal light, by interference between the signal light where bit data is arrayed with the information of light intensity diffe... | 01/31/2012 |
| 8045246 | Method and apparatus for bulk erasure in a holographic storage system A method and system for bulk erasing in a holographic storage system is disclosed. The method may involve illuminating the entire volume storage region of a photorefractive crystal with a laser to achieve bulk erasure, or may involve selective erasure of a portion o... | 10/25/2011 |
| 7965430 | Pre-exposure and curing of photo-sensitive material for optical data storage The present invention relates to an apparatus for writing to optical storage media capable of performing pre-exposure and/or curing of a photo-sensitive material for optical data storage, in particular for holographic data storage. The apparatus has a first l... | 06/21/2011 |
| 7957045 | Hologram media reading apparatus A hologram media reading apparatus including a reference light source, a stop with gray level aperture, and an optical sensor is provided. The reference light source is disposed on one side of a hologram medium, and capable of emitting a reference light beam. The re... | 06/07/2011 |
| 7952777 | Three-dimensional video display apparatus In a three-dimensional video display apparatus, accommodation and convergence among physiological characteristics of eyes are abandoned, thereby resulting in generation of unnatural three-dimensional video. For example, even when eyes are moved, a screen is not chan... | 05/31/2011 |
| 7936490 | System and methods for shearless hologram acquisition Systems and methods for shearless digital hologram acquisition, including an apparatus incorporating an illumination source configured to produce a first beam of light, which is then split by a beamsplitter into a reference beam and an object illumination beam. The ... | 05/03/2011 |
| 7872787 | Holographic multiplex recording method, holographic recording apparatus and holographic recording medium employing the method using interference fringes A holographic multiplex recording method which can keep a recording data rate constant and equalize nonuniformity in recording due to vibrations or the like, and a holographic recording apparatus and a holographic recording medium, which employ the method. In a proc... | 01/18/2011 |
| 7864388 | Method and apparatus for recoding holographic diffraction gratings A method and apparatus for scanning an input beam of light in a two dimensional pattern; splitting the scanned input beam of light into two output beams of light, each one of the two output beams of light passing along a different path to a common region in a record... | 01/04/2011 |
| 7821692 | Method of and apparatus for recording/reproducing data on/from holographic storage medium A method of and apparatus for recording/reproducing data on/from a holographic storage medium. The method of recording data on a holographic storage medium in which holograms containing data by interference between a signal light and a reference light are recorded i... | 10/26/2010 |
| 7796313 | Holographic information recording-reproducing process and apparatus therefor A process for recording information on and reproducing information from a reflection-type holographic information recording medium, having a reflecting layer. Recording includes (i) branching a light beam from a light source into a first branched light beam and a se... | 09/14/2010 |
| 7787164 | Apparatus and method to evaluate a holographic data storage medium A method to evaluate a holographic data storage medium, wherein the holographic data storage medium is evaluated by a manufacturer. In certain embodiments, the holographic data storage medium is evaluated by a customer prior to encoding customer information into the... | 08/31/2010 |
| 7773274 | Apparatus and method to store information in a holographic data storage medium A method to store information in a holographic data storage medium, wherein the method supplies a holographic data storage medium comprising an encoded focusing hologram and one or more encoded data holograms. The method disposes the holographic data storage medium ... | 08/10/2010 |
| 7773275 | Apparatus and method to store information in a holographic data storage medium A method is disclosed to store information in a holographic data storage medium. The method provides a hologram comprising an alignment pattern, and disposes that hologram into a holographic data storage medium during manufacture. ... | 08/10/2010 |
| 7760407 | Multilayer holographic recording medium and manufacturing method of the same, multilayer holographic recording and reproducing method, multilayer holographic memory reproducing apparatus, and multilayer holographic recording and reproducing apparatus A multilayer holographic recording medium that improves recording density and data transfer rates. The multilayer holographic recording medium, from which information is reproduced by a multilayer holographic memory reproducing apparatus, includes a plurality of dep... | 07/20/2010 |
| 7724409 | System and method for recording and reproducing holographic interferogram with optical servo A system and method for recording and reproducing holographic interferogram with servos. A servo process is provided by the system and method to continuously record a holographic interferogram in a holographic recording medium with servo trace layers. Also, by the s... | 05/25/2010 |
| 7715072 | Hologram retrieval method and holographic recording and reproducing apparatus Provided is a hologram retrieval method and a holographic recording and reproducing apparatus for preventing an increase in SNR, a decrease in retrieval accuracy, or the retrieval itself from being made impossible, which would otherwise occur because of a small size... | 05/11/2010 |
| 7697178 | Recording medium, reproducing apparatus, and reproducing method A recording medium records therein image data for distributing contents as element holograms with interference fringes generated by interference between an object beam representing the image data and a reference beam. The image data to be distributed which are recor... | 04/13/2010 |
| 7675664 | Recording medium, reproducing apparatus, and reproducing method A recording medium records therein image data for distributing contents as element holograms with interference fringes generated by interference between an object beam representing the image data and a reference beam. The image data to be distributed which are recor... | 03/09/2010 |
| 7672031 | Hologram recording medium, hologram reproducing apparatus, hologram reproducing method, and hologram sheet A hologram recording medium includes a first element hologram and a second element hologram. On the first element hologram, main data is recorded such that the main data is converted into a two-dimensional image, object light of the two-dimensional image is interfer... | 03/02/2010 |
| 7660024 | 3-D HLCD system and method of making An autostereoscopic three-dimensional liquid crystal display system and a method of making the system. The system includes a collimated backlight, a first light diffracting hologram, a second right-left interlacing hologram and a liquid crystal display. If the backl... | 02/09/2010 |
| 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 |
| 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 |
| 7595922 | Hologram reconstructing apparatus and hologram reconstructing method A hologram reconstructing apparatus configured to irradiate a hologram recording medium that stores an interference pattern of a signal beam spatially modulated by data displayed on a spatial modulator and a reference beam emitted simultaneously with the signal beam... | 09/29/2009 |
| 7589875 | Intensity profile correction for data pages for holographic storage The present invention relates to a method for recording data pages in a holographic recording medium, and more specifically to a method for compensating for sensitivity variations of the holographic material of the holographic recording medium. According to the inve... | 09/15/2009 |
| 7576900 | System and method for holographic storage A system and a method for holographic storage mainly involve forming a holographic interference pattern in a holographic recording medium. The holographic storage system utilizes a light source to emit a coherent beam. The coherent beam is irradiated to a first refl... | 08/18/2009 |
| 7508560 | Holographic recording device and holographic recording method A holographic recording device for multiple recording a plurality of interference fringes of a reference light and intensity-modulated signal lights in a same area or in areas slightly shifted each other of a holographic recording medium is disclosed. The holographi... | 03/24/2009 |
| 7486424 | Holographic recording apparatus The present invention relates to a holographic recording apparatus that records on a multiple basis information on a holographic memory. An object of the present invention is to provide a holographic recording apparatus capable of avoiding problems of recording erro... | 02/03/2009 |
| 7471431 | Hologram device and hologram recording/reproducing method A hologram device records information of an interference fringe of signal light and reference light onto a hologram recording medium and reproduces the recorded information by emitting the reference light onto a recording area of the hologram recording medium. The h... | 12/30/2008 |
| 7446916 | Holographic recording and reproduction apparatus, and method with temperature adjustment device for semiconductor laser A holographic memory reproduction apparatus which makes a wavelength of a reproducing laser beam coincident with a wavelength of a laser beam used for holographic recording when information is reproduced from a holographic recording medium. In the holographic memory... | 11/04/2008 |
| 7443553 | Holographic sensors and their production An array of discrete sensors disposed on a substrate, each sensor comprising a holographic support medium and a hologram disposed throughout the volume of the medium, whereby interaction with an analyte results in a variation of a property of the medium. ... | 10/28/2008 |
| 7436560 | Display device for a vehicle A display device for a vehicle includes a transparent window with a light emission layer intended to separate the interior of the vehicle for emitting visible light when light is beamed onto the light emission layer, a light source for beaming light onto the window,... | 10/14/2008 |
| 7420720 | Optical element and method for the production thereof A method for producing an optical element, preferably a security feature, wherein a film having a first embossed hologram in an embossing layer is provided, and a second embossed hologram is embossed into the same embossing layer such that the first embossed hologra... | 09/02/2008 |
| 7372602 | Method for recording and reproducing holographic data and an apparatus therefor A holographic recording and reproducing method for recording data in a holographic recording medium comprising a recording layer in which data are to be recorded as phase information of light by projecting a signal beam and a reference beam thereonto and a servo lay... | 05/13/2008 |
| 7369962 | Method and device for data integrity checking The present invention relates to high speed datapaths, sometimes including mixed digital and analog voltage signals. In particular, it relates to error checking strategies for large data volumes, in digital and/or analog domains and to analog signal patterns that ac... | 05/06/2008 |
| 7362687 | Method and device for holographic recording A holographic recording method for recording information as phase information of light by projecting a signal beam and a reference beam onto a recording medium, wherein an X direction is defined as the direction of a line of intersection between a plane including th... | 04/22/2008 |
| 7362482 | Inline type speckle multiplexed hologram recording apparatus and inline type speckle multiplexed hologram recording method An inline type speckle multiplexed hologram recording apparatus and method is disclosed which can condense signal light and reference light in a sufficiently overlapping relationship with each other on a hologram recording medium without using a lens having a large ... | 04/22/2008 |
| 7342697 | Hologram recording medium A hologram recording medium includes a hologram recording layer and a transparent substrate layer stacked on the hologram recording layer. The recording layer records an interference pattern of a recording beam and a reference beam. The transparent substrate layer h... | 03/11/2008 |
