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1056 results about "Optical medium" patented technology
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An optical medium is material through which electromagnetic waves propagate. It is a form of transmission medium. The permittivity and permeability of the medium define how electromagnetic waves propagate in it. The medium has an intrinsic impedance, given by η=Ex/Hy where Eₓ and Hy are the electric field and magnetic field, respectively. In a region with no electrical conductivity, the expression simplifies to: η=√(μ/ɛ) .
Apparatus for displaying drawings
Owner:E INK CORPORATION
Optical communication device provided with a reflector and method for forming a reflector in an optical communication device
InactiveUS20070070490A1Small lossHigh bonding strengthMirrorsCoupling light guidesCompound (substance)Optical communication
An optical communication device of the invention includes a reflector for reflecting the light that has reached one end surface of a waveguide chip to turn the optical path of the light. The reflector includes a transparent thin film layer formed on one end surface of the waveguide chip by using a material to which a metal that forms an intermetallic compound or the like with Au is added to a substance that is transparent to the light that propagates through the waveguide, as well as an Au thin film layer formed on the front surface of the transparent thin film layer. This allows formation of a reflector having an Au thin film layer as a reflecting surface in an optical medium with high adhesion strength. Thus, an optical communication device can be provided having a high reliability with little loss.
Owner:FUJITSU LTD
Method and apparatus for Anti-biofouling of a protected surface in liquid environments
ActiveUS20130048877A1Avoid biological contaminationReduce and eliminate needWater/sewage treatment by substance additionDeodrantsBiofoulingOptoelectronics
A system includes a UV light source and an optical medium coupled to receive UV light from the UV light source. The optical medium is configured to emit UV light proximate to a surface to be protected from biofouling. A method corresponds to the system.
Owner:RAYTHEON CO
Applications for radio frequency identification systems
InactiveUS7113094B2Antenna supports/mountingsRadiating elements structural formsCombined useRadio frequency
Owner:3M INNOVATIVE PROPERTIES CO
Multi-dimensional images system for digital image input and output
ActiveUS20040135780A1Character and pattern recognitionSteroscopic systemsInterlaced videoStereo pair
A two-dimensional image is displayed and a grey level image is drawn on said two-dimensional image defining a depth map. A stereo image pair is generated based on the depth map and an anaglyph image of the stereo image pair is displayed. Edits of the depth map are displayed by anaglyph image. A plurality of projection frames are generated based on the depth map, and interlaced and printed for viewing through a micro optical media. Optionally, a layered image is extracted from the two-dimensional image and the plurality of projection frames have an alignment correction shift to center the apparent position of the image. A measured depth map is optionally input, and a stereo pair is optionally input, with a depth map calculated based on the pair. The user selectively modifies the calculated and measured depth map, and the extracted layers, using painted grey levels. A ray trace optionally modifies the interlacing for optimization to a particular media.
Owner:NIMS JERRY C
2D-3D switchable autostereoscopic display apparatus
A two-dimensional / three-dimensional (2D / 3D) switchable autostereoscopic display apparatus is provided, including a display panel and a lenticular unit with a two-dimensional mode and a three-dimensional mode. In the two-dimensional mode, the lenticular unit transmits a single image, and in the three-dimensional mode, the lenticular unit separates an image from the display panel into a right-eye image and a left-eye image. The lenticular unit includes first and second lenticular lens sheets, a half-wave plate interposed between the first and second lenticular lens sheets, which rotates a polarization of incident light by 90 degrees, and first and second electro-optical mediums disposed between the first lenticular lens sheet and the half-wave plate and between the second lenticular lens sheet and the half-wave plate, respectively. First and second electro-optical media have refractive indices with respect to extraordinary rays that vary based on electric fields applied to the first and second electro-optical media.
Owner:SAMSUNG ELECTRONICS CO LTD
Curved surface, real image dome display system, using laser-based rear projection
The present invention is related to a curved surface, real image, laser-based rear projection display system. A plurality of translucent panel members are assembled into a spherical dome assembly. The panels have concave inner surfaces treated with an optical medium to create a diffusion surface onto which the projected visual image is displayed to a design eye point located within the dome. The laser-based projectors have a greatly expanded focal range as compared to conventional sources of illumination. This allows the curved panel members to remain in focus when the dome is moved as much as two (2) relative to the location of the laser projector.
Owner:RAYTHEON CO
Parallel-beam scanning for surface patterning of materials
InactiveUS20060151449A1Semiconductor/solid-state device manufacturingWelding/soldering/cutting articlesBeam sourceLight beam
A system and method for parallel-beam scanning a surface. An energetic beam source emits an energetic collimated beam which is received by an optical device, comprising: one or more optical media, operable to receive the emitted beam, such as two pairs of coordinated mirrors or a right prism, and at least one actuator coupled to the one or more optical media, and operable to rotate each of the one or more optical media around a respective axis to perform a parallel displacement of the beam in a respective direction, wherein the respective direction, the beam, and the respective axis are mutually orthogonal. The optical device is operable to direct the beam to illuminate a sequence of specified regions of a surface.
Owner:SEMICUBE
Methods and systems for measuring local scattering and aberration properties of optical media
Owner:ADVANCED RES TECH INST +1
Method and apparatus for connecting AC powered switches, current sensors and control devices via two way IR, fiber optic and light guide cables
ActiveUS8175463B2Low costSimple attachmentNon-electrical signal transmission systemsCurrent supply arrangementsFiberLight guide
A method for connecting an AC powered device, which has an optical receiver, with a control circuit, which has an optical transmitter, using at least on optical medium cable includes the steps of terminating the cable at both of its ends, introducing the processed cable between the receiver and transmitter, attaching and securing one end of the processed cable to the transmitter and the other end of the processed cable to the receiver, and propagating a one way optical signal including control commands from the control circuit to the powered device.
Owner:ELBEX VIDEO LTD
Optical sensor for measuring physical and material properties
An optical medium having a cavity that defines a variable gap is provided. The optical medium is used in an optical sensor, laser, and variable frequency resonator, by way of example. The cavity is physically altered in response to changes in a measurable parameter like pressure, temperature, force, flow rate, and material composition. The optical medium is characterized in some embodiments by having a cavity disposed near or within a high Q optical resonator. The optical resonator can be formed by various structures of which Bragg reflector cavities, ring resonators, microdiscs, and microspheres are examples. The optical resonator is preferably coupled to a laser source. The altering of the cavity affects the resonance condition within the optical resonator and thereby the laser signal of the system. If the laser source is a mode locked laser, the repetition rate of the pulse train changes in response to changes in the measurable parameter. If the laser source is a CW source the frequency of the laser signal is dependent upon a measurable parameter.
Owner:ROSEMOUNT INC
System and kiosk for commerce of optical media through multiple locations
InactiveUS20070050266A1Simple return processEasy maintenanceAcutation objectsFinanceCredit cardEmail address
A kiosk dispenses and receives recorded optical media using an interconnected central server, through an Internet Service Provider. The central server has databases and processing capabilities and is connected to a credit verification system. The databases collect inventory administration information and customer data (e.g., credit card information and email addresses) from the kiosks. The central server initiates credit verification, sends receipts to customers via email and maintains databases for remote inventory control and administration of the kiosk network. A kiosk may identify a recorded disk for automated restocking and perform quality assessment of a recorded disk. The kiosk may provide publishing-on-demand or act as a portal for remotely served advertisements. The kiosk preferably includes a rotatable carousel with a selection of DVDs. A digital camera captures a digital image of a disk barcode and internal software rotates the image to “read” the barcode, to control inventory and access issues.
Owner:REDBOX AUTOMATED RETAIL
Optical recording medium and method of managing defect area of the optical recording medium
A rewritable optical medium and a method of managing its defect area is disclosed. The DMA condition or initially assignable spare area size in the present invention is determined based upon the interrelation between the spare area size and the DMA condition. Namely, the PDL entry condition among the DMA condition is determined to allow a minimum spare area for linear replacement in the initially assignable spare area after slipping replacement during formatting to facilitate management of the defect area of a rewritable optical medium. The present invention also discloses a method of controlling the recording / playback of optical media with the same format and different sizes, thereby improving the system performance.
Owner:LG ELECTRONICS INC
Distributed digital antenna system
An optical medium, such as fiber, is tapped to provide an antenna port wherever radio service coverage is desired. Each antenna port is a bi-directional remote unit that receives a digital optical signal from a host unit and transforms the signal to a radio frequency signal for transmission by the remote unit. The remote unit receives radio frequency signals that are converted to digital signals and summed with signals from other remote units and converted to an optical signal for transmission to the host unit.
Owner:COMMSCOPE TECH LLC
Method and Apparatus for Removing Biofouling From a Protected Surface in a Liquid Environment
ActiveUS20140196745A1Easy to disassembleReduce and eliminate needLiquid processingReconditioning/cleaning record carriersOptoelectronicsBiofouling
A system includes a UV light source and an optical medium coupled to receive UV light from the UV light source. The optical medium is configured to emit UV light proximate to a surface from which biofouling is to be removed once the biofouling has adhered to the protected surface. A method corresponds to the system.
Owner:RAYTHEON CO
Multi-dimensional images system for digital image input and output
Owner:NIMS JERRY C
Apparatus for displaying drawings
Owner:E INK CORPORATION
Method and Apparatus for Connecting AC Powered Switches, Current Sensors and Control Devices Via Two Way IR, Fiber Optic and Light Guide Cables
ActiveUS20100278537A1Low costSimple attachmentNon-electrical signal transmission systemsCurrent supply arrangementsFiberLight guide
A method for connecting an AC powered device, which has an optical receiver, with a control circuit, which has an optical transmitter, using at least on optical medium cable includes the steps of terminating the cable at both of its ends, introducing the processed cable between the receiver and transmitter, attaching and securing one end of the processed cable to the transmitter and the other end of the processed cable to the receiver, and propagating a one way optical signal including control commands from the control circuit to the powered device.
Owner:ELBEX VIDEO LTD
Lens Systems And Method
An optical system includes a first deformable lens having a membrane with a deformable portion. A sensor is configured to receive the light focused by the first deformable lens. An optical path extends through the first deformable lens and to the sensor. The first deformable lens is tuned according to an applied electrical signal in order to directly focus light traversing the optical path onto the sensor. A first volume of a first optical media and a second volume of a second optical media are defined at least in part by the deformable portion of the membrane. The first volume and the second volume are completely enclosed by the housing. The first volume and the second volume remain substantially constant for all configurations of the first deformable lens.
Owner:OPTOTUNE CONSUMER AG
System and kiosk for commerce of optical media through multiple locations
InactiveUS20070051802A1Effective maintenanceGuaranteed uptimeBilling/invoicingBuying/selling/leasing transactionsCredit cardEmail address
A kiosk dispenses and receives recorded optical media using an interconnected central server, through an Internet Service Provider. The central server has databases and processing capabilities and is connected to a credit verification system. The databases collect inventory administration information and customer data (e.g., credit card information and email addresses) from the kiosks. The central server initiates credit verification, sends receipts to customers via email and maintains databases for remote inventory-control and administration of the kiosk network. A kiosk may identify a recorded disk for automated restocking and perform quality assessment of a recorded disk. The kiosk may provide publishing-on-demand or act as a portal for remotely served advertisements. The kiosk preferably includes a rotatable carousel with a selection of DVDs. A digital camera captures a digital image of a disk barcode and internal software rotates the image to “read” the barcode, to control inventory and access issues.
Owner:REDBOX AUTOMATED RETAIL
Method and system for optical drive write strategies embedded in an optical medium
An optical drive writes information to an optical medium by obtaining a write strategy for the optical medium from a write strategy table embedded in the optical medium. A write module in the optical drive reads an optical drive identification code from the optical medium to select a write strategy associated with the optical drive. The write strategy of the embedded write strategy table that is identified for the optical drive is retrieved by the write module to write information to the optical medium with the optical drive using the identified write strategy. In one embodiment, a time stamp of the identified write strategy retrieved from the optical medium is compared with a time stamp of a write strategy already available to the optical drive to select the most recent write strategy for use by the optical drive. The write strategy table is embedded in the optical medium at manufacture of the optical medium, such as by stamping or burning the data into the optical material of the optical medium.
Owner:DELL PROD LP
Optical network interface devices and methods
ActiveUS20090060530A1Simplifying ONT installationReduce in quantityMultiplex system selection arrangementsOptical multiplexNetwork interface deviceEngineering
A system comprises an optical network terminal (ONT) that provides an interface to a passive optical network (PON). The ONT is coupled to a subscriber gateway device via at least one cable. The ONT may be located outside a subscriber premises while the subscriber gateway device may be located within the subscriber premises. The ONT converts optical signals received from PON to electrical signals and transmits the electrical signals to the subscriber gateway device without performing any MAC layer functions. The subscriber gateway device includes an optical media access control (MAC) unit that converts the electrical signals into MAC layer signals and a gateway unit that distributes the MAC layer signals to one or more subscriber devices. In this manner the MAC and gateway layer functions are relocated from the ONT to the subscriber gateway device.
Owner:WHITE OAK GLOBAL ADVISORS
Adaptive multiple concurrent CD/DVD streaming algorithms
InactiveUS20050050557A1Easy accessCost effectiveElectronic editing digitised analogue information signalsRecord information storageNon real timeData stream
The subject invention provides for a system and method that facilitates concurrent data streaming. In particular, the invention involves initiating a first operation from the optical media at time tx and initiating at least a second operation from the optical media at time ty while the first operation is currently in progress, wherein tx≠ty. The first operation includes reading a real-time data stream to a first buffer. The second operation includes one of reading a real-time data stream and a non-real-time data stream to at least a second buffer. Furthermore, a utility-based analysis can be performed to determine whether to access the first buffer rather than to access the surface of the optical media in order to conduct the second operation. Moreover, the first and at least second operations can be performed in parallel.
Owner:MICROSOFT TECH LICENSING LLC
Method and apparatus for controlling access to storage media
InactiveUS20050083829A1Alters resultLimit installationMechanical record carriersRecord information storageOperating systemOptical medium
A method and apparatus for controlling access to a storage medium, such as an optically readable medium. Light sensitive or other materials that are adapted to change state and affect reading of a storage medium are used to control access to data that may be stored on optical medium and / or to control use of the medium.
Owner:SELINFREUND RICHARD H +3
Deterring theft of optical media
InactiveUS20060114755A1Prevent unauthorized accessCombination recordingTelevision system detailsLength waveBiological activation
An optical media disk is treated with a light-sensitive material that impedes the ability of a optical media player from reading data stored on the disk. This light-sensitive material is a material changes phase upon exposure to one or more wavelengths of light. During the initial phase, the light-sensitive material will render the disk unreadable. After activation, however, the disk becomes readable by conventional optical media players. In this fashion, theft of yet-to-be-activated optical media is deterred.
Owner:SONY CORP +1
Methods of temporarily providing digital content to a customer
InactiveUS7108171B1Conserve costLow costComputer security arrangementsPayment architectureDigital contentComputer science
There are methods of temporarily providing digital content to a customer based on a request for a desired digital content. At a point of sale, a writeable optically-readable medium may be provided with a changeable portion that, when activated, is adapted to physically change over a period of time (e.g., 3–5 days) to a degree that at least part of the medium becomes unreadable by an optical media reading machine. The desired digital content is preferably written on the medium at a point of sale based on the request. The written medium is provided to the customer. The customer pick up the medium at the point of sale, or the medium may be delivered to the customer, for example. The customer preferably need not return the medium because it will become unreadable after a period of time upon activating the changeable portion.
Owner:ERGO MICHAEL JARED +1
Index tuned antireflective coating using a nanostructured metamaterial
InactiveUS20090071537A1Reduce interfacial resistanceIncrease the effective surfaceDecorative surface effectsNanoopticsRefractive indexSolar cell
An anti-reflective layer solar cell / optical medium is provided by nanostructuring the surface of the optical material into which light transmission is desired. The surface of the optical material is etched through a nanoporous polymer film etch mask to transfer the porous pattern to the optical material. The resultant nanostructured layer is an optical metamaterial since it contains structural features much smaller than the wavelength of light and the presence of these structural features change the effective index of refraction by controlling the degree of porosity in the nanostructured layer and also by controlling the thickness of the porous layer.
Owner:MASSACHUSETTS UNIV OF
Pseudo-reflective read inhibitor for optical storage media
InactiveUS6839316B2Low costChange is minimalCombination recordingLayered productsOptical reflectionTime function
System and methods are described for inhibiting the readability of an optical media due to changes in a pseudo-reflective material that composes the optical media after the optical media has been exposed to air for a predetermined time. An optical media includes a data encoded component. At least a fraction of the data encoded component transforms from a substantially optically reflective state to a substantially optically non-reflective state as at-least-in-part a function of time from an initializing event. The systems and methods provide advantages because of low cost, limited content lifetime, avoidance of rental returns and minimum changes to existing manufacturing processes.
Owner:FLEXPLAY TECH INC
Directory read inhibitor for optical storage media
InactiveUS6838144B2Low costChange is minimalLayered productsPhotomechanical apparatusOptical reflectionTime function
Systems and methods are described for inhibiting the readability of an optical media due to changes in a pseudo-reflective material that composes the optical media after the optical media has been exposed to air for a predetermined time. An optical media includes a data encoded component. At least a fraction of the data encoded component transforms from a substantially optically reflective state to a substantially optically non-reflective state as at-least-in-part a function of time from an initializing event. The systems and methods provide advantages because of low cost, limited content lifetime, avoidance of rental returns and minimum changes to existing manufacturing processes.
Owner:FLEXPLAY TECH INC
Storage media access control method and system
InactiveUS20050050343A1Limit installationAvoid accessUser identity/authority verificationAccessories for indicating/preventing prior/unwanted useMedia access controlOptical medium
A method and apparatus for controlling access to a storage medium, such as an optically readable medium. Light sensitive or other materials that are adapted to change state and affect reading of a storage medium are used to control access to data that may be stored on optical medium and / or to control use of the medium.
Owner:SELINFREUND RICHARD H +4
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