Bizarre Patents
A Receptacle for supporting, rotating and sculpting a portion of ice cream or similarly malleable food while it is being consumed.
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 |
| 5138604 | Optical recording method having two degrees of reflectivity and a diffraction grating or hologram formed integrally thereon and process for making it An optical recording medium of the present invention has on a substrate information recording patterns (2) and (3) distinguishable by a difference in light reflectivity, and is characterized in that said information recording pattern (2) is comprised of a... | 08/11/1992 |
| 5132835 | Continuous-time optical neural network process An all-optical, continuous-time, recurrent neural network is disclosed which is capable of executing a broad class of energy-minimizing neural net algorithms. The network is a resonator which contains a saturable, two-beam amplifier; two volume holograms;... | 07/21/1992 |
| 5121371 | Optical servo system for magnetic disk Coherent light passing through slits produces an optical interference pattern having a fringe spacing related to the spacing of the servo tracks on a magnetic disk. The convolution of the interference pattern with the servo tracks generates a quadrature s... | 06/09/1992 |
| 5111445 | Holographic information storage system An optical system for reading a plurality of radially contiguous individual holograms previously recorded on a rotatable disk along at least one of the disk tracks, each hologram being representative of a predetermined data pattern, and each being recorde... | 05/05/1992 |
| 5101397 | Method for recording signals/reproducing signals on/from film A method for recording signals on, and reproducing them from, a film for signal recording and reproduction, in which after coherent light is used to produce interference bands of light in accordance with signals, the interference bands of light are record... | 03/31/1992 |
| 5082339 | Optical read-write head with diffraction grating structure The invention relates to a holographic optical component and its use for reading the writing/reading heads. This application requires a minimum size and low weight for the holographic optical components. This is achieved in accordance with the invention b... | 01/21/1992 |
| 5070488 | Optical integrated circuit and optical apparatus An optical integrated circuit and an optical apparatus used in optical communication or an opto-electronics apparatus such as an optical disk recording apparatus, in which various kinds of aberration caused by wavelength variation of a light source when a... | 12/03/1991 |
| 5064258 | Information reading device An information reading device which comprises a semiconductor laser source which emits a semiconductor laser beam and a first condenser lens for converging the laser beam to form an irradiation beam. A beam shaping optical system is disposed on the optica... | 11/12/1991 |
| 5056881 | Collimated laser diode An optical source comprises (a) a laser light source for emitting light in a light path; and (b) at least one holographic optical element disposed in the light path; wherein the laser light source and the holographic optical element are integrated into a ... | 10/15/1991 |
| 5056080 | Optical recording/reproducing system using interference techniques Apparatus and method are disclosed for encoding information and recording same as sets of variably spaced related marks on the optical record. The encoded information is read by illuminating each set of such recorded marks with a coherent read light to ca... | 10/08/1991 |
| 5028102 | Parallel optical information processing system A parallel optical information processing system includes an information inputting part which produces a coherent optical beam spatially modulated by input image information. A rewritable hologram memory carries a plurality of stored images as holograms s... | 07/02/1991 |
| 5029154 | Optical reproducing apparatus An optical reproducing apparatus has a dual grating provided with a substrate, a first diffraction grating and a second diffraction grating. The first grating receives an incident light reflected from an optical recording medium and separates the reflecte... | 07/02/1991 |
| 5013107 | Polarization selective holographic optical element A polarization-selective holographic element having first and second holographic layers, each holographic layer including holograms comprising a plurality of fringes. The holographic optical element transmits a first component of light without diffraction... | 05/07/1991 |
| 5007690 | Holographic data storage and retrieval system A plurality of reflective diffusing holographic memory elements (16) is positioned on a memory plate (14). An array (24) of detectors (22) faces at least one of the memory elements. A laser (26) illuminates the selected memory element and the data stored ... | 04/16/1991 |
| 4998236 | Apparatus for high density holographic optical data storage Methods and apparatus for writing and reading data provide storage in a volume of memory material consisting of inhomogenously broadened absorption centers such that a beam of electromagnetic radiation controlled to be independently steered and simultaneo... | 03/05/1991 |
| 4993789 | Dual wavelength polarization selective holographic optical element A polarization-selective holographic element having first and second holographic layers, each holographic layer including holograms comprising a plurality of fringes which are recorded with light having a first wavelength λ1. The holographic o... | 02/19/1991 |
| 4988153 | Holographic memory read by a laser array A holographic memory read-out system in which multiple pages of information are angularly multiplexed onto a recording medium, either planar or volume. For read-out of the hologram, a selected one of a plurality of surface-emitting semiconductor lasers ar... | 01/29/1991 |
| 4961178 | Method of erasable recording and reading of information This invention relates to a method of writing, erasing, and reading of a large volume, high-density information. The writing is accomplished by ionizing an element different from a substrate element, and scanning the substrate by a focused ion beam of the... | 10/02/1990 |
| 4864326 | Dual beam recorder A recorder has a beam generator for generating a beam to form a dot image on a record medium. The beam generator has first and second beam generation sources to generate first and second beams and forms each dot by using both of the first and second beams... | 09/05/1989 |
| 4832464 | Optical system with grating lens assembly for correcting wavelength aberrations An optical system having a grating lens assembly including a first grating lens which diffracts rays of a beam incident thereupon so as to provide non-parallel diffraction rays and a second grating lens which converges the non-parallel diffraction rays at... | 05/23/1989 |
| 4701005 | Light beam combining method and apparatus A plurality of light beams emitted by a plurality of light sources are combined together to obtain a power-multiplication effect of the beams by use of a holographic diffraction grating. The holographic diffraction grating diffracts a plurality of light b... | 10/20/1987 |
| 4550395 | Holographic system for the storage of audio, video and computer data A rotating disc-shaped carrier upon which have been recorded audio, video or computer data in holographic form, a method for forming such a carrier, and an apparatus for reading such a carrier is disclosed. A beam of coherent radiation is spatially modula... | 10/29/1985 |
| 4458980 | Optical reproducing head An optical reproducing head for reproducing an information signal recorded on an optical record medium includes a semiconductor laser for generating a laser beam, a first off-axis hologram lens irradiated with the laser beam from the semiconductor laser t... | 07/10/1984 |
| 4458345 | Process for optical information storage Information is stored by a process involving the steps of (1) sensitizing a recording medium comprising a two-photon, four-level material by exposing said medium to flood illumination with ultra-violet or visible light, and then (2) exposing the sensitized med... | 07/03/1984 |
| 4420829 | Holographic system for the storage of audio, video and computer data A rotating disc-shaped carrier upon which have been recorded audio, video or computer data in holographic form, a method for forming such a carrier, and an apparatus for reading such a carrier is disclosed. A beam of coherent radiation is spatially modula... | 12/13/1983 |
| 4295162 | Reading one-dimensional line image holograms of a video from a disc with a guide track A holographic video disc system is described in which the baseband information for successive horizontal television line intervals is recorded as successive holograms of one-dimensional line images in a spiral track on the surface of a disc of material. A... | 10/13/1981 |
| 4260858 | Videodisc player with drive means engaging videodisc guide groove The disclosure is directed to a system for storing and reproducing analog or digital information, such as television information. There is provided a recording disk having a mechanical guiding track formed in a spiral or circular pattern on a surface ther... | 04/07/1981 |
| 4253723 | Apparatus for optically reading information from a record carrier Apparatus for reading optically detectable indicia on a record carrier, such as video information which is recorded in the form of pits on a record medium, for example, a video disc. A source of coherent light transmits a beam to the record carrier. A hol... | 03/03/1981 |
| 4224480 | Holographic playback system using a charge storage sensor and binary decoding A holographic playback system comprises a turntable adapted to support a record disk which contains a series of holograms recorded along convoluted spiral tracks. Each of the holograms represents a pattern of data bits and synchronization bit, and an opti... | 09/23/1980 |
| 4223348 | Automatic focussing device An automatic focussing device which functions to bring a video disc surface in focus with an optical system is disclosed. The device comprises a hologram for producing a focussing luminous flux having astigmatism with or without coma and a video signal re... | 09/16/1980 |
| 4175823 | Process for holographic recording of data in the form of electrical signals A process of recording information which is in the form of electrical signals by pulse amplitude modulating an object wave and directing it with a reference wave onto a moving light-sensitive storage medium to record hybrid holograms thereon characterized... | 11/27/1979 |
| 4133600 | Method of manufacturing and utilizing holographic lens means Holographic lenses are formed on a substantially transparent scanning disc wherein a line focus is the object for each hologram. Such hologram is then used to reconstruct the line focus at the location of the record to be scanned, thereby alleviating tole... | 01/09/1979 |
| 4104489 | Holographic memory with fringe stabilizing compensation for recording medium motion The holographic recording system comprises a pair of aligned first and second Fourier transforming lenses, a holographic beam splitter having a series of random phase illumination holograms at a front focal plane of the first lens and arranged to move in ... | 08/01/1978 |
| 4025731 | Optical record, and associated recording and reading-out devices The present invention relates to an optical record which can contain in one and the same track, the transcription of several simultaneous signals and is designed to be read out by means of a light source; the track carried by this record is formed by frin... | 05/24/1977 |
| 4021606 | Hologram apparatus A hologram apparatus comprises a rotary plane with a plurality of holograms concentrically or spirally arranged thereon, a light emitting source, and at least one photodetector for reading out reconstructed images of the holograms. During rotation of the ... | 05/03/1977 |
| 4015248 | Process for recording low-frequency wide-band signals on a thermoplastic storage medium A process for recording low-frequency, wide-band signals on a thermoplastic storage medium to obtain an improved signal-to-noise ratio characterized by exposing the thermoplastic storage medium with the information to be recorded and either simultaneously... | 03/29/1977 |
| 4012108 | Hologram memory apparatus A hologram memory apparatus in which the information is displayed as one-dimensional spatial pattern and recorded in a form of strip-shaped one-dimensional hologram having sharpness in counter proportion to the width of the light flux and the information ... | 03/15/1977 |
| 3998521 | Linear data input transducer A linear data input transducer for modulating an object beam from a laser which is subsequently projected along with a reference beam onto a storage medium to holographically record data characterized by the transducer having a first acousto-optical light... | 12/21/1976 |
| 3989347 | Acousto-optical data input transducer with optical data storage and process for operation thereof The present invention is directed to the improvements in an apparatus for holographically recording data on a storage medium with the data being block-organized holographic data by spatially modulating a laser beam into a plurality of object beams which a... | 11/02/1976 |
| 3975081 | Signal recording system An optical recording system for holographically recording one-dimensional information varying with time such as audio signals.... | 08/17/1976 |
