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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 8169454 | Patterning a surface using pre-objective and post-objective raster scanning systems Scanning beam systems in both pre-objective and post-objective designs for display, printing and other applications. Various servo feedback control mechanisms are described to control display imaging qualities on fluorescent screens that emit fluorescent light to fo... | 05/01/2012 |
| 8125505 | Image forming apparatus that corrects clock phase difference An image forming apparatus capable of forming a high-resolution image without complicating a circuit construction. A difference between a phase of an operation clock for a BD detection unit and a phase of an operation clock for an image processing unit is measured b... | 02/28/2012 |
| 8094177 | Modifying rotation speed within an image-forming device In an image-forming device includes an image-forming unit, a first conveying unit, a first changing unit, and a second changing unit. The image-forming unit includes a rotatable mirror, a light-emitting unit, a photosensitive drum, a developing unit, a transferring ... | 01/10/2012 |
| 8072477 | Image forming apparatus and signal synchronizing method thereof An image forming apparatus includes: a plurality of optical scanning parts that scan a photoconductor with light of plural colors to form an electrostatic latent image on the photoconductor based on print data; and a controller that, based on a first optical scannin... | 12/06/2011 |
| 8035675 | Aligning beams over successive reflections by facets of rotating polygonal mirror First delay mechanisms to delay a beam-detect signal by different lengths of time in synchronization with a first clock signal. The beam-detect signal is generated responsive to one or more beams being output towards a rotating polygonal mirror having facets and dir... | 10/11/2011 |
| 8031218 | Recording apparatus with a record head and recording method using the record head The laser beam output from each of the semiconductor lasers is applied to the same print dot, such as each of the print dots on a thermosensitive recording medium, in such a manner that the laser beams are superimposed on one another sequentially at the same time th... | 10/04/2011 |
| 8009186 | Image forming apparatus An image forming apparatus includes photosensitive drums including one for black, light source devices, a rotary polygonal mirror having deflecting surfaces with chamfers, input optical systems, imaging optical systems and a synchronism detecting system for detectin... | 08/30/2011 |
| 7982759 | Light scanning unit and image forming apparatus having the same A light scanning unit of an image forming apparatus to scan a light beam in forward and reverse directions, the light scanning unit including: a beam deflector to deflect the light beam, and to form forward direction and reverse direction scanning lines in an image ... | 07/19/2011 |
| 7903134 | Laser scanning apparatus having a photodetector having first and second light receiving units Each light detecting sensor, which is installed corresponding to each photoconductor drum, and to which the plurality of light beams passing through the scanning optical system are incident while moving in a main scanning direction includes a light-receiving device ... | 03/08/2011 |
| 7889221 | Optical scanning apparatus An optical scanning apparatus forms a latent image by scanning a laser beam emitted from a light source on an image bearing member. The apparatus includes first and second laser beam detectors for detecting the laser beam and a scanning-line slope detector for detec... | 02/15/2011 |
| 7884842 | Multi-beam scanning apparatus A multi-beam optical scanning apparatus including a light source including a plurality of radiation points disposed spaced from each other in a main scanning direction and in a sub-scanning direction, a rotational polygon minor for deflecting a plurality of light be... | 02/08/2011 |
| 7830407 | Image forming apparatus In an image forming apparatus, a polygon mirror, a plurality of laser generators, a first sensor, and a second sensor are disposed at a resin frame. A laser beam outputted from each of the laser generators and deflected by a deflection surface is irradiated onto a s... | 11/09/2010 |
| 7804512 | Method and apparatus for producing an image A method of producing an image that can eliminate an fθ lens is provided. This method of producing an image includes producing the image from a plurality of dots with varying intervals that are to be formed by linearly scanning an image forming surface with light t... | 09/28/2010 |
| 7764301 | Optical scanning device and image forming apparatus An optical scanning device includes a deflecting unit, a first sensor, and a modulating system. The deflecting unit deflects a plurality of beams in a main scanning direction to a writing area of a surface to be scanned for scanning the writing area. The first senso... | 07/27/2010 |
| 7760223 | Optical scan apparatus and image formation apparatus An optical scan apparatus which deflects a plurality of light beams to scan a write region on a scan surface in a main scan direction is configured to include a light source which has a plurality of emission portions emitting the plurality of light beams arranged tw... | 07/20/2010 |
| 7738005 | Image forming apparatus At least one exemplary embodiment is directed to an image forming apparatus using a plurality of laser beams that includes a unit configured to detect a main scanning synchronization signal per beam while performing a laser light amount control per beam for each pre... | 06/15/2010 |
| 7738006 | Methods and apparatus for ascertaining sensor signal delay in an electrophotographic device In an electrophotographic (EP) device, methods and apparatus include determining a delay of one or more sensors (hsync) to accurately know when to start the process of scanning latent images. In one aspect, the sensor includes a leading and trailing edge defined alo... | 06/15/2010 |
| 7724275 | Image forming apparatus and control method thereof An image forming apparatus including: optical sensor to receive a bias current and to divide the bias current into two output currents, according to positions of a light beam on the optical sensor; and a signal processor to detect horizontal synchronization signals ... | 05/25/2010 |
| 7719558 | Apparatus and method to generate a horizontal synchronization signal for a printer Systems and methods are disclosed for determining and generating horizontal synchronization signals for a laser printer having a multi-facet rotating mirror. Each horizontal synchronization signal is determined based on measurements of the facets. The measurements a... | 05/18/2010 |
| 7719557 | Apparatus for providing delay signals to perform print scan line synchronization within a laser printer An apparatus for providing delay signals to perform print scan line synchronizations within a laser printer is disclosed. The apparatus includes a voltage-control oscillator, a frequency divider and multiple output control modules. The voltage-control oscillator con... | 05/18/2010 |
| 7697021 | Image forming apparatus An image forming apparatus irradiates a polygon mirror with laser beams from different directions. The polygon mirror reflects the laser beams toward different optical axis directions to scan the laser beams at a predetermined deflection angle. First and second beam... | 04/13/2010 |
| 7692678 | Laser light control device for image forming apparatus, and image forming apparatus A laser light control device for an image forming apparatus designed to improve the auto power control (APC) accuracy and to reduce the control time. A multifunctional optical element has a plurality of different optical characteristics. A detecting unit is adapted ... | 04/06/2010 |
| 7679634 | Method and apparatus for image forming capable of detecting a reference signal for a lighting control An image forming apparatus includes a light emission source, a polygon mirror, a plurality of image carrying members, an optical detection mechanism, and an instruction mechanism. The light emission source outputs a plurality of optical beams in accordance with imag... | 03/16/2010 |
| 7671881 | Timing detection circuit and apparatus for modulating light beam A timing detection circuit including a first timing detection circuit, a second detection circuit, and an output circuit is disclosed. The first detection circuit detects, among multiphase clocks having n mutually different phases and a frequency of k times the freq... | 03/02/2010 |
| 7652682 | Image forming apparatus In an image forming apparatus that outputs a reference clock, divides the outputted reference clock based on a set multiple, and generates an image clock based on the division, a width of a synchronization signal that indicates dynamic deviation characteristics is d... | 01/26/2010 |
| 7639273 | Image forming apparatus An image forming apparatus which has a plurality of image forming stations arranged in parallel, each of the image forming stations having a photosensitive drum, and which forms a desired image by combining toner images formed on the photosensitive drums. A laser sc... | 12/29/2009 |
| 7623147 | Optical scanning device and image forming apparatus using the same An optical scanning device includes a synchronism detecting element for detecting a light beam scanningly deflected by a deflecting surface of an optical deflector, to determine an image-writing start position of the light beam on a scan surface in a main-scan direc... | 11/24/2009 |
| 7598972 | Optical scanning device and image forming apparatus A deflecting unit deflects a light beam emitted by each of a plurality of light-beam emitting units independently to scan surfaces of different bodies to be scanned. Each of a plurality of light-receiving units receives the deflected light beam at a predetermined po... | 10/06/2009 |
| 7576764 | Device and method for controlling timing for starting image formation, and an image forming apparatus using such device and method A device and method for controlling timing for starting image formation, and image forming apparatus using such device and method are described. A detector outputs a synchronization detection signal when a light beam enters the detector. The timing for starting imag... | 08/18/2009 |
| 7573494 | Image forming apparatus, an optical scanning apparatus and an image forming method An image forming apparatus is capable of forming a clear image by using laser beams projected from a plurality of laser light sources. The image forming apparatus forms an electrostatic latent image on a medium to be scanned by laser beams, which are projected from ... | 08/11/2009 |
| 7567268 | Image forming apparatus and abnormality detecting method A light-emission control unit controls an emission of a light beam from a light-beam generating unit based on an input image signal. A light-beam scanning unit deflects the light beam in a main scanning direction and irradiates the deflected light beam on an image c... | 07/28/2009 |
| 7564205 | Electronic device and image forming apparatus An electronic device includes a motor, a detector, and a controller. The detector detects a rotational speed of the motor. The controller selects a gain from a plurality of gains based on the rotational speed and controls rotation of the motor through feedback contr... | 07/21/2009 |
| 7551192 | Optical-beam scanning apparatus and image forming apparatus A scanning time is divided by the number of sides of a polygon mirror to obtain a value N. Then, it is determined whether an error has occurred. When no error has occurred, the value N is stored in an NVRAM, and a magnification correction value is calculated. Values... | 06/23/2009 |
| 7528853 | Color image forming apparatus and process cartridge A color image forming apparatus in which an engine controller outputs an operation start signal to write controllers at a timing at which a registration sensor detects a position of a sheet of transfer paper. Synchronization detection signals for colors are used to ... | 05/05/2009 |
| 7508408 | Image forming apparatus capable of effectively initializing a laser drive circuit An image forming apparatus capable of properly performing an initialization of a control circuit including a laser diode driver circuit, includes a light source, a photoreceptor, a deflector, and a controller. The photoreceptor is built in the light source to detect... | 03/24/2009 |
| 7499070 | Method of diagnosing a state of a horizontal synchronizing signal for an optical scanner A method of diagnosing a state of a horizontal synchronizing signal is provided for an optical scanner, which includes a rotary polygon mirror having a rotation sensor, a control clock competing with a signal of the rotation sensor to control the rotary polygon mirr... | 03/03/2009 |
| 7489328 | Image correction in an image forming apparatus and image forming method A magnification correction controller corrects magnification in a main scanning direction by changing a timing of an image signal based on a time difference between a first detection time in a predetermined position along a main scanning line of the image carrier to... | 02/10/2009 |
| 7471308 | Frequency modulation apparatus and frequency modulation method A frequency modulation apparatus capable of reducing a peak level of a radiation noise of a characteristic frequency band due to an image clock. This frequency modulation apparatus is used in an image formation apparatus having an image bearing body to be scanned by... | 12/30/2008 |
| 7460144 | Optical scanning device and image forming apparatus An optical scanning device that includes: a light-emitting unit that emits laser light to a polygon mirror on the basis of a turning-on signal; a sensor unit that detects laser light reflected by the polygon mirror and outputs a sensor signal; and a noise removing u... | 12/02/2008 |
| 7432943 | Image forming apparatus An image forming apparatus which has a plurality of image forming stations arranged in parallel, each of the image forming stations having a photosensitive drum, and which forms a desired image by combining toner images formed on the photosensitive drums. A laser sc... | 10/07/2008 |
