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8135219 Method of detecting and compensating fail pixel in hologram optical storage system  
A method of detecting and compensating fail pixels in a holographic storage system. The method includes steps of: providing a plurality of image frames to show on a data plane for all pixels on the...
8134771 Spatial light modulators with changeable phase masks for use in holographic data storage  
A holographic data storage system that includes a write head that includes a pixellated spatial light modulator and a separate or integral phase mask that varies the phase depending on the location...
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...
8120828 Reflective optical system, tracking system and holographic projection system and method  
The invention relates to an optical reflection system with a reflection element for reflecting reconstruction light waves, an entry-side focal point, from which the reconstruction light waves come...
8120829 System and method for real time holographic data recording and readout  
A method for holographic data recording and simultaneous data readout without requiring additional optical power for readout illumination is provided. The method comprises reflecting a transmitted...
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...
8107144 Method and device for manufacturing a hologram recording medium containing multiple objects that are reproduced when observed from different positions  
A method and a device for manufacturing a hologram recording medium that has an arrangement by which different original images are reproduced when observed from different positions. The method...
8089456 Inputting information using holographic techniques  
A method for inputting commands to a holographic input system, includes the steps of generating a virtual image of an input device by illuminating a hologram of the input device by means of a...
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...
8045245 Multicolor holgraphic replication by masking  
A multicolor hologram (e.g., a two-color hologram) is replicated (copied) into a photosensitive layer by masking to produce a copy (replicate) of the hologram in a manner such that the copy is an...
8031383 Common aperture holographic storage system with reduced noise  
An apparatus for reading from or writing to holographic storage media, and more specifically a common aperture type apparatus for reading from or writing to holographic storage media with multiple...
8009339 Holographic recording medium, holographic writing system and holographic reading system  
A holographic recording medium including a recording layer on a substrate, which records data information in a light interference pattern. In the holographic recording medium, information on a...
8009542 Apparatus for recording/reproducing holographic data  
A holographic information recording and/or reproducing apparatus includes: a light source to emit light; a polarization conversion device to form a polarized signal beam and an orthogonal polarized...
7995443 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...
7978386 Generation of holographic diffraction patterns  
A method of generating a holographic diffraction pattern and a holographic lithography system. The method involves defining at least one geometrical shape; generating at least one line segment to...
7976170 Holographic projection method and holographic projection device  
According to the present invention, a plurality of video image data are converted into individual spatial frequency information using Fourier transformation. The individual spatial frequency...
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...
7961367 Method and system for producing multiple images in a single image plane using diffraction  
Methods create images viewable under different selected angels on optical storage devices and other photosensitive surfaces and optical storage devices with super-imposed images. Generally, a...
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...
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...
7952776 Hologram reading apparatus, hologram reading method, hologram recording apparatus and hologram recording method  
A hologram reading apparatus includes: a unit for holding a hologram recording medium in which data page is recorded by irradiating as a single beam both reference light and signal light modulated...
7944602 Systems and methods using interferometric optical modulators and diffusers  
Various embodiments include interferometric optical modulators comprising a substrate layer having a thickness between about 0.1 mm to about 0.45 mm thick and a method for manufacturing the same....
7940437 Computer-generated hologram for reconstructing a full-color image with high resolution and its fabrication method  
A computer-generated hologram that is capable of reconstructing a full-color image and achieving a high resolution is provided. A recording plane of the hologram is divided by a multiplicity of...
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...
7920309 Holographic recording medium, holographic writing system and holographic reading system  
A holographic recording medium including a recording layer on a substrate, which records data information in a light interference pattern is provided. In the holographic recording medium,...
7911666 Apparatus for reading a hologram  
An apparatus for reading a hologram, in particular a computer-generated hologram, that includes a radiation source for irradiation of the hologram with a read beam composed of electromagnetic...
7907773 Apparatus and method for holographic information storage and retrieval  
A method is disclosed to store and retrieve information using holographic data storage media. The method provides original data, generates a first image of that original data, and encodes that...
7901086 Optical unit, light processing unit, light processing method, illumination unit and image generation unit  
For displaying a color image by recombination of several single color images, parasitic noise like speckles due to scattering within the system, in particular when laser light is involved, with the...
7903309 Optical informational recording/reproduction device and method  
An optical information recording device, a reproduction device, and a method enabling include a first spatial light modulator I for generating information light by spatially modulating light from a...
7903310 Hologram recording/reproducing apparatus, hologram multiplex recording method, and hologram recording medium utilizing reaction rate information and a recording interval time based on the reaction rate information  
An object is to prevent lowering of a dynamic range of a hologram recording medium without lowering an average data transfer rate, and to provide stabilized recording sensitivity. A scheduler...
7894112 Security element with a diffraction structure having subareas representing recognizable information  
A security element, preferably for documents of value, which at least has one area with a diffraction structure, which under specific viewing conditions reconstructs a diffractive image. This area...
7884984 Multicolor holographic replication by masking  
A multicolor hologram (e.g., a two-color hologram) is replicated (copied) into a photosensitive layer by masking to produce a copy (replicate) of the hologram in a manner such that the copy is an...
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...
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...
7859970 Holographic storage and reproduction system and method with servo  
A holographic storage and reproduction system and method with a servo are provided, wherein a servo mechanism is provided, such that the holographic interferogram is continuously stored in the...
7852538 Hologram recording apparatus and hologram recording method  
At the time of varying the angle of a scan mirror for varying the angle of incidence of a reference beam on a hologram recording material, the angle of a slit is also varied in conjunction, whereby...
7843362 Method of controlling a driving maneuver  
A method is provided for controlling an at least partly automatically implementable driving maneuver by which a motor vehicle can be moved from an actual position into a desired position. In the...
7830572 Holographic storage system based on common path interferometry  
The present invention relates to a holographic storage system, and more specifically to a holographic storage system using a phase spatial light modulator. According to the invention a holographic...
7830573 Method and system for producing multiple images in a single image plane using diffraction  
Methods create images viewable under different selected angles on optical storage devices and other photosensitive surfaces and optical storage devices with super-imposed images. Generally, a...
7826326 Data reading method  
A data reading method used in a reading device for reading a holographic storage medium is provided. The holographic storage medium has several data areas. Each data area has several data pages,...
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...
7804631 Holographic storage system with apodization filter  
The present invention relates to an apparatus for reading from and/or writing to holographic storage media, and more specifically to an apparatus for reading from and/or writing to holographic...
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...
7787346 Hologram recording method and device, hologram reproduction method and device, and optical recording medium  
There is provided a hologram recording method, including generating a signal light which is spatially modulated such that digital data is represented by an image of intensity distribution,...
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...
7773487 Apparatus and method to determine an optimal optical detector orientation to decode holographically encoded information  
A method is disclosed to determine an optimal optical detector orientation to decode information encoded holographically. The method supplies a matched filter, an orientation image, a holographic...
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...
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...
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...
7755820 Two-dimensional modulation method for hologram recording and hologram apparatus with encoder for driving SLM displaying boundary portion  
To provide a two-dimensional modulation method for hologram recording which is capable of preventing degradation of reconstructing performance when positional shift occurs and which enables...