Patent application number | Description | Published |
20090310456 | High data capacity storage medium with protection code, method for optaining the protection code and respective data reading apparatus - The optical storage medium comprises a substrate layer, and a data layer disposed on the substrate layer, the data layer comprising data being arranged in tracks as marks and spaces. A protection code is coded in one of the tracks or a part of a track which code comprises marks of a first size and marks of a smaller, second size. The marks of the second size have in particular a width being smaller than the width of the marks of the first size. To obtain the protection code, a method is used comprising the steps of reading a track or a part of a track with a first laser power for obtaining a first data signal, reading the same track or the same part of a track in another step with a second laser power being different from the first laser power for obtaining a second data signal, and calculating the protection code by taking into account the first and the second data signals. The protection code may be calculated for example by a microprocessor of a respective data reading apparatus. | 12-17-2009 |
20100054112 | OPTICAL STORAGE MEDIUM AND RESPECTIVE APPARATUS FOR RECORDING AND/OR READING DATA - The optical storage medium comprises a read-only region with a substrate layer, an data layer, and a mask layer with a phase change material for providing a super resolution near field effect, which layers are arranged as a stack of layers, and a recordable region comprising a layer with a tracking structure for providing a tracking information. The tracking structure is covered by the mask layer for using the mask layer as the data layer of the recordable region. The optical storage medium is in particular an optical disc and the recordable region a reserved area and/or an inner area of the optical disc. The apparatus for recording and/or reading data from the optical disc comprises a pickup unit providing a laser beam for reading data from the read-only region with the super resolution near-field layer of the optical storage medium, and uses this laser beam for recording and/or reading data on the data layer of the recordable region. The pickup unit comprises in particular a Blu-ray disc type pickup in accordance with the Blu-ray disc system. | 03-04-2010 |
20100189950 | Optical storage medium comprising a mask layer with a super resolution near field structure - The optical storage medium according to the invention uses a mask layer as a super resolution near field structure, which comprises a doped semiconductor material. The semiconductor material is n-doped particularly such that the reflectivity of the semiconductor material is increased, when irradiated with a laser beam. As a semiconductor material advantageously an indium alloy and as a doping material selenium or tellurium can be used. For the manufacturing of a respective optical storage medium a sputtering method for depositing the doped semiconductor material as the mask layer can be used, wherein the dopant is included already in the semiconductor sputtering target. | 07-29-2010 |
20110002218 | OPTICAL STORAGE MEDIUM COMPRISING A MULTILEVEL DATA LAYER - The optical storage medium comprises a substrate layer, a data layer, and a nonlinear layer with a super-resolution structure disposed on the data layer, wherein pits and lands having a size above a diffraction limit of a pickup for reading of the data establish a first and a second level of the data layer, and pits and lands having a size below the diffraction limit of the pickup are arranged on a further level of the data layer. In a preferred embodiment, pits having a size below the diffraction limit are arranged on a third level and lands having a size below the diffraction limit are arranged on a fourth level of the data layer. The optical storage medium is in particular a read-only optical disc comprising a phase-change material, for example AgInSbTe, for providing the super-resolution effect. | 01-06-2011 |
20110038248 | OPTICAL STORAGE MEDIUM COMPRISING INVERTED SUPER-RESOLUTION PITS AND LANDS - The optical storage medium comprises a substrate layer, a data layer having a pit/land data structure with data arranged in tracks on the substrate layer, and a nonlinear layer with a super-resolution structure disposed on the data layer, wherein a land having a size below the diffraction limit is inverted to a pit and enclosed by auxiliary lands, and a pit having a size below the diffraction limit is inverted to a land and enclosed by auxiliary pits. The optical storage medium is in particular a read-only optical disc comprising a phase-change material, for example AgInSbTe, for providing the super-resolution effect. | 02-17-2011 |
20110064902 | Optical storage medium comprising a super-resolution structure with grainy impurities of a dielectric material - The optical storage medium comprises a substrate layer, a read-only data layer with a pit structure disposed on the substrate layer, a cover layer and a nonlinear layer with a super-resolution structure disposed between the data layer and the data layer, which super-resolution structure includes a semiconductor material and grainy impurities of a dielectric material, wherein the semiconductor material has an increased reflectivity, when irradiated with a laser beam, and wherein the dielectric material is arranged as a dielectric layer having a thickness below 5 nm. The dielectric material consists advantageously of an inhomogeneous layer of a nitride material, for example GeN, arranged between a first and a second nonlinear layer. | 03-17-2011 |
Patent application number | Description | Published |
20130058203 | OPTICAL STORAGE MEDIUM COMPRISING A PHASE SHIFT COMPENSATION - The optical storage medium comprises a substrate layer, a data layer having a pit/land data structure with data arranged in tracks on the substrate layer and a nonlinear layer with a super-resolution material, wherein the data structure comprises diffractive pits and lands having a size above an optical resolution limit of a pickup for reading of the data and super-resolution pits and lands having a size below the optical resolution limit, said pits and lands having a defined length with regard to a channel bit length. A diffractive land preceding a super-resolution pit is changed by a first length depending on the laser power of the pickup, and/or a diffractive pit preceding a super-resolution land is changed by the first length depending on the laser power of the pickup, to compensate a phase shift of the super-resolution pit, respectively super-resolution land. | 03-07-2013 |
20130155827 | METHOD AND SYSTEM FOR DETERMINING THE QUALITY OF A STORAGE SYSTEM - In accordance with an exemplary embodiment of the present invention, a method for measuring a quality parameter of an optical storage system comprising a non-diffraction-limited optical storage medium and a readout device, the method comprising the process of deriving an impulse response of the optical storage system, and the process of analyzing the impulse response to determine at least one of a width of the impulse response and a skewness of the impulse response as the quality parameter. | 06-20-2013 |
20130285985 | METHOD AND DEVICE FOR ASCERTAINING A GESTURE PERFORMED IN THE LIGHT CONE OF A PROJECTED IMAGE - A method for ascertaining a gesture performed in the light cone of a projected image which has a plurality of pixels includes: detecting all pixels of the projected image and one or multiple parameter values of the individual pixels; comparing the one or the multiple detected parameter values of the individual pixels with a parameter comparison value; assigning a subset of the pixels to a pixel set as a function of the results of the comparison; and ascertaining a gesture performed in the light cone of the projected image based on the assigned pixel set. | 10-31-2013 |
20140111421 | ELECTRICAL DEVICE, IN PARTICULAR A TELECOMMUNICATION DEVICE HAVING A PROJECTION UNIT AND METHOD FOR OPERATING AN ELECTRICAL DEVICE - A telecommunication device has: a projection unit for projecting image information on a projection surface situated outside the telecommunications device, the image information being projected onto the projection surface (i) with the aid of at least one optical element in a projection beam path for sequentially constructing an image, and (ii) for momentarily spatially limiting the projection relative to the total area of the image information on the projection surface; and a detection unit. During projection a movement of the projection surface, e.g., a displacement or a rotation, takes place relative to the projection unit. The detection unit detects the movement of the projection surface with the aid of a reflection signal passing along a detection beam path, the projection beam path and the detection beam path coinciding at least in the area of the at least one optical element. | 04-24-2014 |
20140152961 | LASER MODULE AND SCANNER PROJECTOR - A laser module includes a first laser light source, a second laser light source, and a third laser light source. Laser beams of the laser light sources are combinable into an overall laser beam. The laser beam of the first laser light source and the laser beam of the second laser light source have a first polarization, and the laser beam of the third laser light source has a second polarization. The laser beams of the first and the third laser light sources are coupled into the overall laser beam with the aid of mirror devices. The laser beam of the second laser light source is split, the polarization of the laser beam of the second laser light source being changed from the first polarization to the second polarization in a splitting path. The laser beam of the second laser light source having the second polarization is coupled into the overall laser beam via the splitting path, and the laser beam of the second laser light source having the first polarization is coupled into the overall laser beam via a main path. | 06-05-2014 |
20140340585 | LASER PROJECTION DEVICE AND LASER PROJECTION METHOD FOR PROJECTING LASER BEAMS ONTO A PROJECTION PLANE - A laser projection device is described for projecting laser beams onto a projection plane, including a controllable multibeam laser diode unit; including a controllable optical deflection unit, which is designed in such a way that laser beams generated by the multibeam laser diode unit are deflected with the aid of the deflection unit; and including a control unit, which is designed in such a way that it controls the deflection unit to move laser beams deflected by the deflection unit onto a projection plane along a scanning line in such a way that different deflected laser beams run in the projection plane on the same scanning line. | 11-20-2014 |
20140375553 | Method and device for determining gestures in the beam region of a projector - A method for determining gestures in the beam region of a projector includes: projecting an image onto a surface with the aid of the projector, using light; measuring a first set of light intensities of light backscattered from the direction of the surface, under the influence of a gesture made in the beam region of the projector; assigning the measured light intensities to, in each instance, a position of the image projected by the projector; at a first time point, generating a first light intensity function over a second set of positions, which are assigned measured light intensities; at a second time point, generating at least one second light intensity function over the second set of positions; and determining the gesture made, based on the result of a comparison between the first and second light intensity functions. | 12-25-2014 |
20150062678 | MULTI-LASER PROJECTION DEVICE AND CORRESPONDING PRODUCTION METHOD - A multi-laser projection device includes: a plurality of first assemblies, each including a fixed assemblage of a respective laser diode and an associated first collimator lens; a second assembly that forms a fixed assemblage of a beam combiner and a respective second collimator lens that is fastened on an entry surface of the beam combiner and that appertains to a respective laser diode; and a deflection unit. The plurality of first assemblies, the second assembly, and the deflection unit are mounted in a common housing so as to be adjusted to one another. | 03-05-2015 |
20150131059 | LASER MODULE HAVING A DUOCHROMATIC LASER DIODE FOR A PORTABLE IMAGE PROJECTOR - A laser module is described for an image projection system, which has a duochromatic laser diode designed to generate a first beam bundle having laser light of a first wavelength and laser light of a second wavelength; a first collimating optics system designed to collimate the first beam bundle; at least one first monochromatic laser diode designed to generate a second beam bundle having laser light of a third wavelength; a second collimating optics system designed to collimate the second beam bundle; and a first optical combination device developed to combine the first and second beam bundles in order to form an output beam bundle of the laser module. | 05-14-2015 |
20150138167 | METHOD FOR REDUCING A LIGHT INTENSITY OF A PROJECTION DEVICE - A method for reducing a light intensity of a projection device is provided which includes the following steps: projecting information in the form of a visual representation onto a total area; emitting a plurality of electromagnetic signals which are essentially imperceptible to an observer onto the total area, using the projection device; detecting objects situated in the light path between the projection device and the total area with the aid of the electromagnetic signals; and reducing the light intensity of the projection device as long as an object is detected in the light path. | 05-21-2015 |
20150288918 | METHOD AND DEVICE FOR ADAPTING A LINE FREQUENCY OF A DIGITAL SIGNAL OF A PROJECTION DEVICE - A method for adapting a line frequency of a digital data signal of a projection device includes: providing data about at least one mechanical natural frequency of a mirror device of the projection device and about a storage capacity of a line buffer of an image processing device; detecting a first image resolution of a video signal of a video source device with the aid of the image processing device; and computing a second image resolution having an adapted vertical resolution of the digital data signal based on the detected first image resolution of the video signal as a function of the at least one mechanical natural frequency of the mirror device and the storage capacity of the line buffer with the aid of the image processing device to adapt the line frequency of the digital data signal of the projection device. | 10-08-2015 |
20150310683 | IDENTIFICATION DEVICE, PORTABLE KEY DEVICE, LOCK DEVICE, AND METHOD FOR IDENTIFYING A PORTABLE KEY DEVICE - An identification device includes a portable key device which has a first memory device for storing an associated identifier and a projector device which is configured to project an optical code matrix, which is based on the identifier, as an image, and a lock device which is configured to detect the image of the optical code matrix projected by the projector device via a sensor device, and to carry out an image analysis of the detected image of the optical code matrix via an identification device, and on the basis thereof, to identify the portable key device with the aid of a comparison of the identifier analyzed from the optical code matrix with identifiers stored in a second memory device of the lock device. | 10-29-2015 |
Patent application number | Description | Published |
20110261665 | Optical disc with protection code, method for optaining the protection code and respective apparatus for reading of data - The optical disc comprises a substrate layer, a read-only data layer having a pit/land data structure including user data and control data arranged in tracks on the substrate layer, and a nonlinear layer with a super-resolution structure disposed on the data layer, wherein the control data are correctly readable only by including a reverse rotation of the disc. The control data include in particular a protection code for the disc, for example a copy protection code, so that the user data of the disc are only readable after reading of the control data. | 10-27-2011 |
20110276991 | Optical disc with improved sensitivity for super-resolution pits and lands - The optical disc comprises a substrate layer, a read-only data layer having a pit/land data structure with an average pit width, arranged in tracks on the substrate layer, and a nonlinear layer with a super-resolution structure disposed on the data layer, wherein a super-resolution pit following a super-resolution land and a preceding diffractive pit is enlarged in width with regard to the average pit width, and a diffractive pit preceding a super-resolution land and a subsequent super-resolution pit is reduced in pit width with regard to the average pit width. | 11-10-2011 |
20120068138 | OPTICAL STORAGE MEDIUM COMPRISING TWO NONLINEAR LAYERS - The optical storage medium comprises a substrate layer, a data layer arranged on the substrate layer, a first nonlinear layer with a first super-resolution structure arranged above the data layer, and a second nonlinear layer with a second super-resolution structure arranged above the first nonlinear layer, the first nonlinear layer comprising a material having an increased reflectivity when irradiated with a laser beam and the second nonlinear layer comprising a material showing a transparency when irradiated with a laser beam. The first nonlinear layer comprises in particular a semiconductor material of one of the III-V semiconductor family having a low band-gap. And the second nonlinear layer comprises in particular a phase change material, for example SbTe or AIST. | 03-22-2012 |
Patent application number | Description | Published |
20110084398 | SEMICONDUCTOR DEVICE COMPRISING AN ELECTROMAGNETIC WAVEGUIDE - A semiconductor device includes a substrate. On at least one face of that substrate, integrated circuits are formed. At least one electromagnetic waveguide is also included, that waveguide including two metal plates that are placed on either side of at least one part of the thickness of the substrate and are located facing each other. Two longitudinal walls are placed facing each other and are formed by metal vias made in holes passing through the substrate in its thickness direction. The metal vias electrically connect the two metal plates. | 04-14-2011 |
20110109521 | ELECTRONIC DEVICE COMPRISING A SEMICONDUCTOR COMPONENT INTEGRATING AN ANTENNA - An electronic device includes a semiconductor component having a support substrate in the form of a wafer. On one side of this substrate integrated circuits including an RF circuit and an antenna connected to this RF circuit are formed. A metal layer is situated on the other side of the substrate, facing the antenna. At least on metal via is provided in a through-hole in the substrate, this via being connected at one end to the metal layer and at the other end to the RF circuit, at the same reference potential node as the antenna. | 05-12-2011 |
20120086608 | Antenna Array for Transmission/Reception Device for Signals with a Wavelength of the Microwave, Millimeter or Terahertz Type - Transmission/reception device for signals having a wavelength of the microwaves, millimeter or terahertz type, comprising an antenna array. The antenna array comprises a first group of first omni-directional antennas and a second group of second directional antennas disposed around the first group of antennas. | 04-12-2012 |
20130026846 | TRANSFORMER OF THE BALANCED-UNBALANCED TYPE - A transformer of the balanced-unbalanced type includes a primary inductive circuit and a secondary inductive circuit housed inside an additional inductive winding connected in parallel to the terminals of the secondary circuit and inductively coupled with the primary circuit and the secondary circuit. | 01-31-2013 |
20140145897 | ANTENNA CIRCUIT USING MULTIPLE INDEPENDENT ANTENNAS SIMULTANEOUSLY THROUGH A SINGLE FEED - An antenna circuit includes a first antenna tuned to a first fundamental frequency and a second antenna tuned to a second fundamental frequency different from the first fundamental frequency. A first filter has a first terminal connected to the first antenna and attenuates the frequency components outside of a band defined by the first fundamental frequency or its harmonics. A second filter has a first terminal coupled to the second antenna and attenuates the frequency components outside of a band defined by the second fundamental frequency or its harmonics. A passive recombination element couples the second terminals of the two filters to a common terminal. | 05-29-2014 |