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7432918 Video signal processing circuit  
The video signal processing circuit has a clamp circuit for clamping a composite video signal including a copy guard signal with amplitude of from white to black as well as a pseudo horizontal...
7405848 Scanning device and method using paired differential analog signals  
A scanning device having a cable for connecting various parts is provided. A method is provided using a differential pair of clock generated signals to cancel each other, thereby reducing...
7394579 Data writing apparatus and image processing apparatus  
An image reading apparatus of the present invention converts respective pixel signals outputted from first, second and third shift registers to pixel data in an analog frontend IC and outputs pixel...
7394494 Sub-sampling apparatus and method and image sensor employing the same  
The present disclosure relates to an address sub-sampling apparatus and method, and an image sensor employing the same. An address sub-sampling apparatus includes a counting unit that generates a...
7385734 Method and apparatuses for changing driving sequence to output charge couple device signal  
A method of changing driving sequence to output a charge coupled device signal, the method is applied to a scanner. The scanner has a pixel processor and a charge coupled device. A plurality of...
7382503 Scanning apparatus  
The scanning apparatus includes a movable chassis and a main board fixed on the body. A charge-coupled device module and a front end processing device are disposed on the chassis. An...
7382497 Image pickup apparatus and image pickup method  
An image pickup apparatus and an image pickup method perform different processing on signals from respective photoelectric conversion portions in accordance with changes of photographing...
7375845 Picture printing system  
Using a picture image printing system, both types of pictures recorded by a camera using a film and a digital camera are effectively printed. The printing system comprises a film scanner for...
7365888 Image read apparatus  
There is disclosed an image read apparatus including an image sensor including: first and second sensors including light receiving devices arranged in one row; a first shift register for outputting...
7362479 Image reading apparatus  
The scanner comprises first and second sensors 21, 22 wherein light receiving elements with 600 dpi resolution are arranged, a first shift register 25 which outputs all the pixel signals...
7352497 Image reading apparatus  
In an image reading apparatus, with respect to the first to third transfer clock signals for controlling shift registers in an image sensor, the second and third transfer clock signals have a cycle...
7349134 Image reading apparatus  
An image reading apparatus for reading an image using a monochrome image sensor and a color image sensor having three shift registers which requires a reduced manufacturing cost and is less...
7349129 Controller for photosensor array with multiple different sensor areas  
A controller controls selection of rows of photosensors residing in a photosensor array having at least one row of photosensors with a first sensor size, and at least one row of photosensors with a...
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...
7336402 Image reading apparatus  
Since a power supply circuit for a controller ( 31 ) and a power supply circuit for a buffer storage unit ( 32 ) are independently provided, the power voltage for the buffer storage unit ( 32 )...
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...
7202981 Method and system for increasing scanning speed  
A method and a system for increasing scanning speed are provided. The method may include determining a transmission rate of a transit interface, scanning an original to generate an image data, and...
7202964 Determining raster image processor cycle count to fully utilize a printer  
Commercial printers operate more efficiently when they run continuously after being started on a print job. Print job image data is processed by a predetermined number of raster image processors...
7199909 Scanner projection system  
A stand alone flat bed scanner including a CPU, a removable storage medium, a control system displaying digital image and controls for controlling the mode of operation, degree of resolution,...
7190493 Image reading apparatus and image reading method  
A white reference image is inputted to an image sensor so as to output groups of analog data. The groups of analog data are converted by a processing unit into those groups of digital data the...
7164509 Image reader having image sensor ICS divided into plural blocks having simultaneously read-out image signals  
An image reader is constituted by an image sensor having a plurality of image sensor ICs mounted therein linearly, wherein the plurality of image sensor ICs are divided into a plurality of blocks...
7085022 Repeatedly sampling method for image scanning  
The present disclosure provides a repeated sampling method for image scanning. In one or more embodiments, the sampling method may comprise a sample treatment procedure for the data of an image...
7023591 Image scanning apparatus, storage medium for storing controlling procedure of image scanning apparatus, and control program for image scanning apparatus  
It is assumed that there are a plurality of areas where a transfer is to be performed at a long pitch, in an original film, and a plurality of areas where a transfer is to be performed at a short...
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...
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...
6961151 Image reading-out apparatus, copying machine and facsimile device utilizing the same, and method of reading out image  
An image reading-out apparatus including a background level detecting circuit, an analog-to-digital converter, and a black-shading compensation circuit. The background level detecting circuit is...
6927881 Image reader  
When an image reader is in a stand-by state in which the image reader can read an original, supply of a clock signal from a clock generation circuit to a line sensor is halted. Hence, supply of a...
6914701 Digitizer with improved dynamic range and photometric resolution  
A digitizer having a dual exposure technique is combined with an associated LUT for each exposure. Each LUT may have a transfer function including a logarithmic operator resulting in a digitized...
6809840 Image processing method for adaptively sub-sampling an image  
A digital image processing method for adaptively sub-sampling an image to X % of original pixels, includes the steps of generating an edge map of the image; normalizing the edge map to N-bits;...
6765703 Method and apparatus for sensing image  
This invention uses a 4-line color CCD sensor including four line sensors Y, R, G, and B. In a low-speed color read mode, outputs from these sensors are processed by A/D converters and subsequent...
6738169 Image processing apparatus and method  
In a high-frequency component processing section, a low-quality color transformation section applies a very simple (meaning a small amount of calculations) color transformation to an original image...
6683706 System and method for scanning a document  
A system and method are provided to control an acquisition of a number of pixels in a scanning system. In one embodiment, the system includes an interface circuit with a multiplexer to route at...
6665096 Apparatus and a method for image processing  
An apparatus and a method for processing image capable of correcting errors due to an object difference in accordance with an element characteristic of an image reading sensor which is mounted in...
6643415 Method and apparatus for rotating image data  
An image memory is used for rotation of image data, and to shorten processing time. An image data rotating method uses an image memory capable of storing n×n pixels, and, for consecutive two pages...
6633418 Image reading method and image reading apparatus  
The image reading method and apparatus read photoelectrically an original image by an image sensor and convert an output signal of the image sensor into a digital signal. At least one of an...
6628434 Method and system for image transfer and image signal output apparatus and terminal used therefor  
Upon transferring two image signals to an output apparatus in an image transfer system, the amount of data to be transferred can be reduced. In an image signal output apparatus, subtraction signal...
6621598 Color image reader  
The present invention provides a color image reader installed on an image reader such as a hand scanner whose reading speed may change during reading. A hand scanner has an encoder sensor which...
6618173 Method for automatic prevention of vertical streaks by selectively applying gains to the output signals of optical sensor elements  
A method for automatic prevention of vertical streaks involves processing output signals from a plurality of photosites to determine what gain is appropriate for each output signal. An exemplary...
6600577 Image read apparatus and image read method  
A left-side odd-component image signal (ODDL) output from an output terminal (OS 1 ) of a 4-channel output CCD (4-division photoelectric conversion element) is input to an amplifier. A left-side...
6587602 Resolution conversion system and method  
There is disclosed a resolution conversion apparatus for converting an original digital image into a digital image having a different number of pixels in accordance with an instructed conversion...
6583897 Non-local approach to resolution enhancement  
A method of smoothing edges of an input image is provided for use in connection with an image rendering engine that supports two opposing intensity levels and a range of intermediate intensity...
6580525 Method of and system reading out image signal  
A digital image signal is read out at a predetermined picture element density by causing a light beam to repeatedly scan a recording medium bearing thereon an image in a main scanning direction at...
6515774 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 speed fluctuation components by reading...
6486975 Method and device for recognizing tones and sequences thereof  
A method for recognizing tones in a signal in a telecommunication transmission uses samples of the signal to determine whether a tone of an expected frequency and wave shape is contained in the...
6462842 Apparatus, method, and computer program for increasing scanner data throughput  
An apparatus, method, and computer program improve scanning time by transferring data from a scanner to an associated device at a rate approximately equal to the average data transfer rate. The...
6445469 Document image reading device  
The invention produces 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 speed...
6426804 Image forming apparatus  
An image forming apparatus and a method of forming an image. A timing generating circuit is constructed without employing an exclusively used IC. A CCD can be easily replaced without performing any...
6389180 Resolution conversion system and method  
There is disclosed a resolution conversion apparatus for converting an original digital image into a digital image having a different number of pixels in accordance with an instructed conversion...
6347159 Method and system for processing image information using screening and error diffusion  
A method and system implements screening and a high addressability characteristic into an error diffusion process. A grey level value representing a pixel is received. The grey level value has a...
RE37378 Reader with high-resolution mode and high-speed mode  
A reader having a high-resolution mode and a high-speed mode is disclosed. The reader comprises a CCD sensor, a buffer, a first AD convertor, a second AD convertor, a data selector and a control...
Matches 1 - 50 out of 213 1 2 3 4 5 >