Patent application number | Description | Published |
20140204041 | SEMICONDUCTOR DEVICE - A semiconductor device connected to the display panel including the in-cell type touch sensor is configured as follows. The semiconductor device includes a driving circuit of the display panel, a touch sensing circuit of the touch sensor, a power supply circuit that supplies a power source to these circuits, and a bias control circuit that controls a bias current flowing through these circuits. The semiconductor device is able to perform a time-division operation in which one frame period of display is divided into a plurality of display driving periods and sensing periods. In the display driving periods, the supply of power to the touch sensing circuit is suppressed, and/or a bias current is reduced. In the sensing periods, the supply of power to the driving circuit is suppressed, and/or a bias current is reduced. | 07-24-2014 |
20140253525 | DRIVER IC - One display frame period is divided into one or a plurality of display driving periods and non-display driving periods, and immediately before transition from the non-display driving period to the display driving period, a dummy driving period is inserted. During the dummy driving period, using dummy data changed from display data at the time of driving stop of a signal electrode during the non-display driving period, driving of the signal electrode starts. Thereafter, a display line is selected, and, using the display data corresponding to each display line selected, the signal electrode is driven. | 09-11-2014 |
20140292688 | DRIVER IC AND DISPLAY DEVICE - The driver IC includes: a control circuit operable to perform control for creating the timing of detection by a touch panel in a non-display drive period during which the action of a drive circuit remains stopped, and for creating a display drive period during which the drive circuit drives the display panel, and the non-display drive period; and a data RAM operable to hold display data of more than one display line, but smaller than one display frame in capacity. The control circuit performs control for alternately creating the display and non-display drive periods by repeating a memory-addressing operation for writing display data supplied from outside into the RAM and reading the display data from the RAM at a speed faster than the writing speed to provide the read data to the drive circuit two or more times in a period of one display frame according to a wraparound method. | 10-02-2014 |
20140313146 | TOUCH PANEL CONTROLLER AND SEMICONDUCTOR DEVICE - The drive circuit operable to output a drive pulse pattern to drive electrodes of a touch panel is arranged so that it can change the pulse frequency of the drive pulse pattern for each drive electrode. The detection circuit operable to detect signal changes arising on detection electrodes of the touch panel for each drive pulse pattern output by the drive circuit is arranged so that it can change the sampling frequency of signal change for each detection electrode. The range to make higher the pulse frequency of the drive pulse pattern for each drive electrode, and the sampling frequency of signal change for each detection electrode is variably controlled according to a touch position where a touch has been detected by use of a detection signal detected by the detection circuit. | 10-23-2014 |
Patent application number | Description | Published |
20100097657 | ADAPTIVE EXPOSURE PRINTING AND PRINTING SYSTEM - One or more printers or printing systems are connected to a scanning device. Each printer includes one or more color modules that are used during a printing operation. A printer prints a target for each color module or color channel. The printed targets are then scanned by the scanning device. The printed targets may be rotated to any angle and then scanned by the scanning device. The scanned raster data is processed by a controller to detect non-uniformities in at least one density image and to generate one or more correction profiles for the printer. When an image is to be printed, one or more controllers receive the image data and use the one or more correction profiles to correct or compensate for the non-uniformities during the exposure process. | 04-22-2010 |
20110235059 | SCREENED HARDCOPY REPRODUCTION APPARATUS WITH COMPENSATION - Screened hardcopy reproduction apparatus for applying toner to a receiver using a print engine that may not apply toner uniformly, so the toner applied to the receiver has a non-uniformity. A controller receives an input pixel level and a corresponding input pixel location; a tone-reproduction unit calculates an output pixel level from the input pixel level and a corresponding output pixel location from the input pixel location; a compensator calculates a compensated pixel level from the output pixel level and the output pixel location; and a screening unit calculates a screened pixel level and a screened pixel location from the compensated pixel level, the output pixel location, and a selected screening pattern. The print engine applies an amount of the toner corresponding to the screened pixel level and the non-uniformity to the receiver at a toner location corresponding to the screened pixel location to compensate for the non-uniformity. | 09-29-2011 |
20110235060 | SCREENED HARDCOPY REPRODUCTION APPARATUS COMPENSATION DATA CALCULATION - A method of calculating compensation data for compensating for spatial print engine non-uniformity of an image applied by a print engine to a receiver. A test target has two test areas of different output densities, each with a single output pixel level. A relationship between output density and output pixel level for the print engine is determined, and is used to calculate the output pixel level for each test area from the respective output density. The test target is printed, and the reproduced densities of the test areas are measured at a plurality of different locations in each area. A processor is used to calculate the compensation data using the measured densities. The compensation data defines a relationship between an output pixel location on the receiver, an output pixel level, and a compensated pixel level. | 09-29-2011 |
20120268544 | PRINTER NONUNIFORMITY COMPENSATION FOR HALFTONE SCREENS - Compensation is performed for nonuniformity in a printer. The printer has a photoreceptor and a print head with a plurality of different light sources, each light source capable of producing a plurality of different levels of light. A plurality of stored gain control signals for each light source are related to the light output of that light source. Print job data includes screened pixel levels and a halftone screen specification. The stored gain control signals are adjusted based on the halftone screen specification. The screened pixel levels are modified using the adjusted gain control signals to provide engine pixel levels. Those levels are provided to corresponding light sources to expose the photoreceptor in respective pixel areas with light corresponding to the compensated pixel levels. | 10-25-2012 |
20120269527 | ELECTROPHOTOGRAPHIC PRINTING WITH COMPENSATION - Electrophotographic (EP) streaking compensation is performed. A tonescale is measured for each column and a per-column gain computed to compensate for variations. An adjustment tonescale is determined and a per-column adjustment-tonescale gain computed to correct for remaining error after the per-column gain is applied. The two corrections are used together to provide improved compensation quality. | 10-25-2012 |
20130010312 | AUTOMATIC CROSS-TRACK DENSITY CORRECTION METHOD - Methods are provided for automatic cross-track density correction for a print engine having a print head that forms lines of picture elements on a receiver based upon lines of pixel values. In one aspect of the method, the print engine is caused to print a first print having a plurality of different areas along a cross-track direction with target densities and data is received from which measured densities for different ones of the plurality of different areas can be determined. A line density adjustment function is based upon a functional relationship between a cross track position of different ones of the areas and a difference between the measured density and the target density at the different ones of the areas. A production print is subsequently printed according to lines of pixel values for the production print modulated by the line density adjustment function. | 01-10-2013 |
20130010313 | PRINTER HAVING AUTOMATIC CROSS-TRACK DENSITY CORRECTION - Printers are provided having a print engine having a print head that forms lines of picture elements on a receiver based upon lines of pixel values and a controller that causes the print engine to print a first print having a plurality of different areas along a cross-track direction with target densities and that receives data from which measured densities for different ones of the plurality of different areas can be determined. The controller determines a line density adjustment function based upon a functional relationship between a cross-track position of different ones of the areas and a difference between the measured density and the target density at the different ones of the areas and subsequently prints a production print according to lines of pixel values for the production print modulated by the line density adjustment function. | 01-10-2013 |
20130155422 | PRODUCING CORRECTION DATA FOR PRINTER - Correction data is produced for density errors in prints produced using a printer. While printing a test image, the periods of rotation of one or more rotatable imaging members arranged along a receiver feed path in the printer are measured using respective period sensors. The printed test image is measured along a selected measurement direction and a reproduction error signal representing deviation from aim density is determined. For each period sensor, the autocorrelation of the reproduction error signal for the corresponding period is determined. If the determined autocorrelation exceeds a selected threshold, the reproduction error signal is decomposed at the corresponding period to extract the variation from the measured component. The remaining error signal is separated by frequency terms. The variations from the data at measured periods and the remaining error signal are used to produce a correction signal. | 06-20-2013 |
20140063532 | MULTI-RESOLUTION SEGMENTED IMAGE SENSOR - A method of detecting and correcting imaging defects in a media printed on a high-speed multi-color printer includes providing a multisensory imaging device ( | 03-06-2014 |
20140063575 | MULTI-RESOLUTION SEGMENTED IMAGE SENSOR - A multi-resolution imaging device ( | 03-06-2014 |
20140285821 | HIGH-SPEED MULTI-COLOR PRINTING - A multi-resolution imaging device ( | 09-25-2014 |
20140285822 | METHOD FOR MULTI-COLOR HIGH-SPEED PRINTING - A method for high-speed multi-color printing includes at least one high-resolution sensor array ( | 09-25-2014 |
Patent application number | Description | Published |
20100308524 | WORK PALLET POSITIONING AND FIXING DEVICE - A positioning and fixing device positions a work pallet in the vertical and horizontal directions relative to a base member via a ring member, and also restricts its rotation around the vertical axis. The base member has Z reference surfaces that can stop a lower end reference surface of the ring member and position it in the vertical direction, and a tapered male engagement portion whose horizontal cross section is formed as a regular polygon having a plurality of outwardly convex circular arcuate vertex portions and a plurality of side portions, and that reduces in diameter upwards. The ring member has a tapered female engagement portion that can engage with the tapered male engagement portion so that its lower end reference surface is in contact against the Z reference surfaces. A clamp mechanism for fixing the ring member to the base member is provided, and the side portions of at least one of the tapered female engagement portion and the tapered male engagement portion are adapted to engage in close contact with the other via elastic deformation. | 12-09-2010 |
20120112398 | ARTICLE POSITIONING MECHANISM - An article positioning mechanism for positioning an article comprising a component or a tool with respect to a mounting portion of a movable member of a mechanical device and also restraining rotation thereof includes a holder member to which the article is fixed and a frame shaped member that is fixed to the mounting portion, the holder member including position regulation surfaces and a tapered male engagement portion that is formed as a regular polygon and also is sloped so as to approach its axis in the direction towards the mounting portion, the frame shaped member including a reference surface that receives the position regulation surfaces and positions them in the axial direction, and a tapered female engagement portion that is formed as a regular polygon and also is sloped in the same direction as the tapered male engagement portion. | 05-10-2012 |
20130043634 | OBJECTING POSITIONING / FIXING DEVICE - An object positioning/fixing device is capable of generating a clamping force by clamp bolts capable of being fastened manually and realizes high operability of the clamp bolts. A simple clamp mechanism comprises the clamp bolts as major components. The object positioning/fixing device has a cooperative assembly of the positioning mechanism and the clamp bolts. | 02-21-2013 |