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| Patent # | Description |
|---|---|
| US-6,515,816 |
Medium distinguishing method of a disk used in a disk drive The radius range of a formatted zone in each medium differs. A floppy disk and an another-standard high-capacity medium are distinguished by reading a... |
| US-6,515,815 |
Recording medium driving device with condensation sensor Described herein is a hard disk drive HDD which adopts a CSS type floating or levitation head device. A condensation sensor is provided on the inner surface of a... |
| US-6,515,814 |
Device and method for reproducing magnetic signal The present invention provides a magnetic signal reproducing device including heating means for locally heating a reproducing region of a magnetic recording... |
| US-6,515,813 |
Method for controlling servo information detection timing and rotational
speed of disk, and disk drive A method to enable servo information to be detected surely and stably even when a time interval between servo sectors is changed due to disk shifting. A time... |
| US-6,515,812 |
Servo format for hard disks, preferably hard disks A new embedded-servo format is proposed for use in disk drives, preferably hard disk drives. It is based on biphase modulation (more generally, p-phase... |
| US-6,515,811 |
Optical filter having two absorption maximums An optical filter comprises a transparent support and at least one filter layer. The optical filter has an absorption maximum in the wavelength region of 560 to... |
| US-6,515,810 |
Mounting module for an optical element A module for mounting an optical element (e.g. a lens) in a predetermined position in an optical apparatus comprises a carrying member which holds the optical... |
| US-6,515,809 |
Fixed focal length lens system A lens system has the first and second lens components from the object side. The first lens component has a negative optical power. The second lens component has... |
| US-6,515,808 |
Optical pickup apparatus and objective lens An optical pickup apparatus for reproducing information from or recording onto one of different kinds of optical information recording medium comprises a first... |
| US-6,515,807 |
Lens barrel and optical apparatus having lens barrel A lens barrel is constructed by: a lens holding barrel holding a lens and having a first flange portion for preventing movement of the lens in the direction of... |
| US-6,515,806 |
Eyepiece attachment structure for observation optical instrument An eyepiece attachment structure for attaching an eyepiece to an observation optical instrument is provided with an attaching sleeve protruding from the... |
| US-6,515,805 |
Taking lens device A taking lens device has a zoom lens system, including a plurality of lens units, for forming an optical image of an object with variable magnification achieved... |
| US-6,515,804 |
Zoom optical system A zoom optical system suited for use in an electronic image pickup apparatus comprising a first negative lens unit, a second positive lens unit and a third... |
| US-6,515,803 |
Zoom lens system A zoom lens system having multiple lens units including, sequentially in a direction from an enlargement side thereof toward a reduction side thereof, a first... |
| US-6,515,802 |
Optical arrangement An optical arrangement for at least partial spectral selection of light components from a polychromatic light beam (1) is configured, in the interest of... |
| US-6,515,801 |
Lateral color compensation for projection displays Compensation of lateral-color chromatic-aberration effects in a digital color-graphics projection display is achieved by providing projection optics for the... |
| US-6,515,800 |
Microlens array A microlens array has a plurality of microlens supportedly arranged on a first surface of a transparent medium. At least two optical features are formed on a... |
| US-6,515,799 |
Image stabilizing apparatus In an image stabilizing apparatus in which an actuator for a pivoting gimbal suspension is controlled by a feedback loop, the gain of feedback loop based on the... |
| US-6,515,798 |
Rear projection screen A rear projection screen assembly is described that includes a diffuser and a polarizer. The diffuser has particles dispersed within a binder. The particles and... |
| US-6,515,797 |
Viewfinder apparatus and optical apparatus having the same A viewfinder apparatus includes an objective lens unit, an eyepiece unit, an image display element for displaying an image formed by an image pick-up element, an... |
| US-6,515,796 |
Saturated amplifier generating burst support signal Circuitry and a concomitant methodology for generating a burst support signal to augment an input bursty optical signal in an optical channel. The burst support... |
| US-6,515,795 |
Borosilicate cladding glasses for germanate core thulium-doped amplifiers A borosilicate glass composition comprises SiO.sub.2 having a concentration of about 40 mole percent to about 60 mole percent, B.sub.2 O.sub.3 having a... |
| US-6,515,794 |
Techniques for making an insertion loss correction in an optical fiber
amplifier A method of providing a predetermined insertion loss in an optical fiber amplifier, includes the step of utilizing a predetermined, fixed, spectrally-flat loss... |
| US-6,515,793 |
Optical waveform shaper An optical waveform shaper comprising a probe light source for generating probe light with a constant amplitude, a signal copier to which input signal light of a... |
| US-6,515,792 |
Fast optical wavelength shifter A process shifts wavelengths of optical pulses. The process includes transmitting an incoming optical pulse through a nonlinear optical material, splitting the... |
| US-6,515,791 |
Active reflection and anti-reflection optical switch An active, optical, piezoelectric actuated modulator allows switching between a reflecting state and an anti-reflecting state. The modulator, or switch, is based... |
| US-6,515,790 |
Reversible image display medium and image display method A reversible image display medium including two sheets; one or more developer accommodating cells formed between the two sheets, and each having a periphery... |
| US-6,515,789 |
Compact optical assembly systems and devices for use in optical
communication networks The present invention is directed to an optical assembly with a substrate. A non-latching optical component is attached to the substrate and includes a... |
| US-6,515,788 |
Light modulation system including a superconductive plate assembly for use
in a data transmission scheme and method A method and apparatus for modulating light, wherein a light source provides light of a certain wavelength to be modulated by a layer of superconducting material... |
| US-6,515,787 |
Electrochromic layer An improved electrochromic device comprising a substrate and a first conductive layer located on the transparent substrate. An ion storage layer is located on... |
| US-6,515,786 |
Bandwidth variable wavelength router and method of operation An optical device comprises a first birefringent crystal having a first length, a second birefringent crystal having a second length, and a dynamic polarization... |
| US-6,515,785 |
Optical devices using reflecting polarizing materials Optical devices using reflective polarizers and, in particular, diffusely reflective polarizers are provided. Many of the optical devices utilize the diffusely... |
| US-6,515,784 |
Refractive index manipulating optical inverter An optical inverting system employs a first optical structure having an index of refraction that varies with the intensity of an incident beam and a second... |
| US-6,515,783 |
Penta assembly skew compensator Correction is provided for a curved or skewed scan output from a penta assembly in an instrument that scans a beam in a predetermined fashion. The penta assembly... |
| US-6,515,782 |
Telecentric F-theta lens for laser microfilm printer A laser microfilm printer (170) having a telecentric F-theta scan lens (166) with optical resolution for image pixel sizes 1-5 microns for writing on an... |
| US-6,515,781 |
Scanned imaging apparatus with switched feeds A display apparatus includes a scanning assembly that scans about two or more axes, typically in a raster pattern. A plurality of light sources emit light from... |
| US-6,515,780 |
Method enabling a scanning range of a normal scan to map a predetermined
range selected under preview in a... A method enabling a scanning range of a normal scan to map a predetermined range selected under preview in a scanning device is provided. The present invention... |
| US-6,515,779 |
Method and system for compensating for chromatic dispersion in an optical
network The present invention provides a method and system for compensating for chromatic dispersion in an optical network. The method and system includes analyzing an... |
| US-6,515,778 |
Polarization mode dispersion compensation An apparatus and a method for compensating for polarisation mode dispersion in an optical signal. The apparatus includes a chirped Bragg reflector extending... |
| US-6,515,777 |
Ring gain control in WDM optical signal transmission system A signal transmission system has a number of wave division multiplex optical carriers linking a number of switching units arranged in a closed ring network. The... |
| US-6,515,776 |
Optical device, terminal unit, and system for wavelength division
multiplexing Disclosed herein is an optical device including a fiber collimator and a plurality of fiber assemblies sequentially optically coupled to the fiber collimator by... |
| US-6,515,775 |
Diffusive optical element, illumination optical system, and image-shooting
apparatus A diffusive optical element exploiting holography is designed in such a way that, the higher the intensity of incident light in a wavelength range, the lower the... |
| US-6,515,774 |
Document image reading device A document-image reading device that can analyze a speed fluctuation state of a scanner when scanning an image in the feed direction by separately extracting... |
| US-6,515,773 |
Image reading apparatus An image reading apparatus is provided with a scanner setting part 49 in which an image read scanner 27 and a contact member 59 which comes into contact with a... |
| US-6,515,772 |
Apparatus and method for engraving a gravure printing cylinder An engraver having an engraving signal generating system for engraving a workpiece. The engraver includes a setup circuit enabling direct dimensional control of... |
| US-6,515,771 |
Image reading apparatus having a reference image and measurement means for
measuring distortion based on... In an image reading apparatus for reading an original mounted on an original mount by a sensor, such as a CCD (charge-coupled device) or the like, a reference... |
| US-6,515,770 |
Dither mask generation with calibration-independent number of threshold
levels Calibrated dither masks adaptable to most printers are constructed in such a way that the threshold values can be adapted to a printer so that said printer can... |
| US-6,515,769 |
Image forming apparatus and method An image forming apparatus and method in which, when a recording medium on which a gray-scale pattern has been formed is placed upon a platen in a skewed... |
| US-6,515,768 |
Frequency modulation halfstone screen and method for making the same A frequency-modulation halftone screen and method for making same, utilizing local randomization of a deterministic screen. The deterministic screen optimizes... |
| US-6,515,767 |
Digital synthesizer, digital copier and magnification control unit The digital synthesizer comprises a system control unit, a read control unit, and a write drive control unit, and based on a magnification fine adjustment value... |
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