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| Number | Title | Issue Date |
| 7940431 | Image scanner and peak detecting processing method of image scanner A sheet image scanner of the present invention has plural image sensors to output electric signals by detecting optical image data that are obtained by applying a light from a light source to documents, amplifiers to amplify outputs from the plural image sensors, an... | 05/10/2011 |
| 7800786 | Image reading device There is provided an image reading device, which comprises a photoreceptor unit having photoreceptors aligned in a line, and a signal output unit having output channels from which output signals of the photoreceptors are outputted. The output channels respectively c... | 09/21/2010 |
| 7782496 | Image signal processing circuit, image reading device, and image forming apparatus An image signal processing circuit including a gain control circuit capable of performing gain control operation, and an image reading device or an image forming apparatus incorporating the image signal processing circuit. ... | 08/24/2010 |
| 7515310 | Programmable gain amplifier with hybrid digital/analog architecture Circuits, devices, and methods for enabling the digitization of scanned images with an Analog Front End (AFE) circuit. The AFE circuit includes a sampler for sampling a signal produced by an image sensor and in response generating analog image samples. The AFE circu... | 04/07/2009 |
| 7359099 | Image reading device and image forming apparatus An image reading device includes a photoelectric device provided with an empty transfer part. An A-D converter performing A-D conversion on an output signal for each pixel of the photoelectric device. A reference voltage varying part varies a reference voltage of th... | 04/15/2008 |
| 7349128 | Image scanner and peak detecting processing method of image scanner A sheet image scanner of the present invention has plural image sensors to output electric signals by detecting optical image data that are obtained by applying a light from a light source to documents, amplifiers to amplify outputs from the plural image sensors, an... | 03/25/2008 |
| 7339707 | Method and system for viewing a fax document A system and method for viewing a fax document includes a fax device which may be configured for transmitting/receiving fax transmissions. When a transmitting fax device with a video camera and a video display transmits a fax transmission to a receiving fax device w... | 03/04/2008 |
| 7333423 | Transceiver with calibrated I and Q paths and methods for deconvolved calibration Phase and amplitude offsets of a multicarrier transceiver may be reduced by measuring receiver amplitude and phase mismatches of receiver radio-frequency (RF) circuitry by performing a fast Fourier transform (FFT) on a receiver calibration signal. ... | 02/19/2008 |
| 7317828 | Color image processing apparatus with background control In an image processing apparatus, a compression processor compresses a color image data, a storage device stores the compressed data, and an expansion processor expands the data read from the storage device. A first background controller controls background of the c... | 01/08/2008 |
| 7301678 | Image reading device and gain setting method in image reading device An image reading device includes a CCD which photoelectrically converts optical information and outputs an image signal in an analog form, a PGA which receives an output from the CCD, amplifies the output with a programmable gain, and outputs the output, an ADC whic... | 11/27/2007 |
| 7268924 | Optical reader having reduced parameter determination delay In the present invention, an optical reader image sensor is adapted to clock out image data from an image sensor according to “low resolution” mode of operation in order to reduce a parameter determination delay of the reader. In a low resolution mode, some pixe... | 09/11/2007 |
| 7258500 | Media processing apparatus and scanner unit The media processing apparatus has a first transportation path for guiding the check, a second transportation path and a third transportation path that diverge from the first transportation path, a front scanner that is rendered along the first transportation path f... | 08/21/2007 |
| 7251030 | Digital workflow independent output matching The present invention provides for the creation and use of a non-linearized, paper specific, digital workflow independent color profile which can be used to create proofs based on the raw output data of the source process. Such a profile would have the advantage of ... | 07/31/2007 |
| 7251065 | Image color balance for scanners using an illumination spectral sensor An image scanning system for producing an electronic version of a hardcopy element which is compensated for spectral content of an illumination source in the image scanning system, the image scanning system includes a sensor for receiving light containing the hardco... | 07/31/2007 |
| 7236275 | Image reading apparatus and method of reading images Disclosed is an image reading apparatus capable of selectively executing a flow-scan reading method in which a document is read while the document is transported in a state in which a reader is fixed at a predetermined location, and a fixed reading method in which a... | 06/26/2007 |
| 7224484 | Scanner calibration with dead pixel compensation When a sensor of a scanning array is identified as “bad” (defective), data from a neighboring “good” sensor is used to determine pixel data nominally associated with the bad sensor. During a calibration procedure, dark-offset and gain values are determined f... | 05/29/2007 |
| 7184480 | Digital PWM generator A digital PWM circuit is provided. One exemplary circuit includes a binary counter, an n-bit DAC and a comparator. The binary counter generates a plurality of binary signals in increasing and/or decreasing value. The DAC circuit generates ramp signals composed of a ... | 02/27/2007 |
| 7173743 | Image reading apparatus and method An image reading apparatus and method are provided which precisely correct shading due to dispersion of the spectral sensitivity characteristic of a reading area of a reading device. Second correction values for correcting, for each of R, G and B, shading due to par... | 02/06/2007 |
| 7149002 | Scanner including calibration target A scanner includes a transparent scanning window; a housing, the housing including a first side supporting the scanning window and a second side opposite the first side; a scanning array movable in the housing relative to the scanning window along a scanning path, t... | 12/12/2006 |
| 7139105 | Image reading apparatus for optically reading an image An image reading apparatus for optically reading an image comprises an LED for lighting a predetermined region including an object to be read, an image pickup element for receiving reflected light from the predetermined region lit by the LED and outputting an corres... | 11/21/2006 |
| 7129867 | Apparatus and method for correcting DC offset of receiver in multiband-hopping communication system A DC offset correction apparatus and method of a receiver in a multiband-hopping communication system is provided. The DC offset correction apparatus of the receiver in the communication system which hops to a plurality of bands, includes a controller for generating... | 10/31/2006 |
| 7102801 | Pulse-width modulated drivers for light-emitting units of scanning mechanism A scanning mechanism of one embodiment of the invention is disclosed that includes light-emitting units, an integrating detector, and pulse-width modulated (PWM) drivers. Each light-emitting unit can emit colored light corresponding to a color of a color space. The ... | 09/05/2006 |
| 7064781 | Apparatus and methods of calibrating pixel off set and pixel gain using digitial hardware A calibration system in accordance with the invention, which is implemented at least in part in digital hardware, can calibrate for at least one of pixel offset and pixel gain. Calibration for pixel offset can include a pixel range adjust process which sets up the r... | 06/20/2006 |
| 7058222 | Automatic background detection of scanned documents A background detection process that analyzes background information for the purpose of limiting the impact of intensity information obtained from non-document areas includes: identifying a first white peak from pixels within a first document region; identifying a se... | 06/06/2006 |
| 7053941 | Image input apparatus An image input apparatus has an image sensor for photoelectrically converting image information of an object into an electric signal and outputting the signal, and a correction circuit for adjusting a fluctuation of offset components generated during photoelectric c... | 05/30/2006 |
| 7046381 | Image forming apparatus An image forming apparatus in which an image is formed on paper without it being necessary for the user to identify and select paper having a suitable texture. Input image data is expanded to bit map data, and it is determined as to whether at least 30% of the expan... | 05/16/2006 |
| 7027139 | Photosensor apparatus and image forming apparatus A photosensor apparatus includes a light receiving element that receives reflection light of light which is illuminated onto a reference pattern image formed on a moving member, a first illuminating unit that enters regular reflection light to the light receiving el... | 04/11/2006 |
| 7023583 | Method and apparatus for use in image forming apparatus In an image forming apparatus according to the invention, the potential of an optical semiconductor is increased in a predetermined time period, in which a recording medium does not exist in a transfer region between the optical semiconductor and a transfer unit, so... | 04/04/2006 |
| 6980332 | System and method of automated scan workflow assignment A system and method that provided for preview scanning a document and generating a preview scan image, determining a document type based on the preview scan image, mapping the document type to a predetermined workflow, scanning the document to capture an image of th... | 12/27/2005 |
| 6975435 | Image reader and method for correcting the quantity of light source In the correction of the quantity of light of a light source used in an image reader which irradiates an original document with the light source, receives the reflected light by a CCD and reads the original document image, at the time of a document moving mode in wh... | 12/13/2005 |
| 6975433 | Method and apparatus for reading image information An image information reading apparatus that can obtain high quality images without an effect of noise and a photographing condition or the like is realized even in the case where a low-bit A/D converter is used. The apparatus comprises control means for switching be... | 12/13/2005 |
| 6968093 | Pixel processing system for image scanning applications A linear pixel-array processing systems uses a combination of digital and analog signal processing techniques to calibrate the gain and offset of each pixel in the analog domain. A plurality of fixed gain and offset values are applied in the analog domain to adjust ... | 11/22/2005 |
| 6958835 | Image inputting apparatus and image forming apparatus using four-line CCD sensor A four-line CCD sensor is structured by line sensors R, G, B in which color filters are respectively disposed on surfaces of light receiving elements, and a line sensor BK at which no color filter is disposed. Amplitudes of signals which are outputted from the line ... | 10/25/2005 |
| 6956604 | Apparatus and method for determining image correction values for printing an image acquired with a digital camera and device for printing an image on printing material A device (PR) and a method is proposed for determining image correction values for printing on printing material an image acquired with a digital camera. The type (KT1, . . . , KTn) of the digital camera, which acquired the image to be printed, is identified.... | 10/18/2005 |
| 6943335 | Signal processing apparatus having a specific limb darkening correction A signal processing apparatus includes a lens, an image sensing device placed on an imaging plane of the lens, and a limb darkening correction section which corrects limb darkening only in the horizontal direction of the image sensing device with respect to a video ... | 09/13/2005 |
| 6937361 | Image reading device and method of the same CCD1 as an image reading part reads a copy at the upstream and downstream of reading positions, and image data B and A at each of the reading positions are obtained from an output delay circuit and a shading correction circuit, respectively. A streak detector... | 08/30/2005 |
| 6856427 | System for printing correct exposure in a rendered digital image A method for correcting for exposure in a digital image, captured by an image capture device, including rendering such captured digital image suitable for display and displaying such captured digital image as a first displayed digital image; and using an adjustable ... | 02/15/2005 |
| 6721073 | Image input device and method There is disclosed an image input method, comprising the steps of: forming an image of a linear area on an original onto a row of linearly arranged light receiving elements of a linear image sensor by a lens, and outputting an image signal of the linear image formed... | 04/13/2004 |
| 6700683 | Image reading apparatus Disclosed is an image reading apparatus that can change the amounts of light of an exposure lamp at the time of reading a white reference value (shading correction value) and at the time of reading an image, or changing a signal amplification factor of an... | 03/02/2004 |
| 6661929 | Controlling an imaging array not having black cells using an array controller that is adapted to imaging arrays having black cells An imaging system that uses an array controller which is adapted to imaging arrays having black cells to control an imaging array not having black cells. The imaging system includes an array controller that is adapted to process a scan line that includes ... | 12/09/2003 |
