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Jian-Feng Li

Jian-Feng Li, Hsin-Chu TW

Patent application numberDescriptionPublished
20110084894GATE OUTPUT CONTROL METHOD AND CORRESPONDING GATE PULSE MODULATOR - A gate output control method is adapted into a flat display having a plurality of gate drive integrated circuits. The method comprises: providing a gate control signal; providing a oblique control signal to oblique modulate the gate control signal for generating a gate control signal with oblique; modulating the gate control signal with oblique to obtain a modulated gate control signal; and outputting the modulated gate control signal to the gate drive integrated circuits. A falling edge of the modulated gate control signal comprises a oblique-varying period and a vertical-varying period. In the oblique-varying period, the modulated gate control signal firstly changes to a predetermined voltage in a first slope, and then changes in a second slope until the vertical-varying period. In the vertical-varying period, the modulated gate control signal changes vertically or nearly vertically.04-14-2011

Jian-Feng Li, Taichung County TW

Patent application numberDescriptionPublished
20090161060TOUCH PANEL AND DRIVING METHOD THEREOF - A touch panel including a first transparent substrate, a second transparent substrate, first conductive patterns, first electrodes, second conductive patterns, second electrodes, and spacers is provided. The first conductive patterns are disposed on the first transparent substrate, and extend along a first direction. The first electrodes are disposed at the two ends of the first conductive patterns in the first direction. The second conductive patterns are disposed on the second substrate, and extend along a second direction intersecting the first direction. The second electrodes are disposed at the two ends of the second conductive patterns in the second direction. The abovementioned conductive patterns are located between the first substrate and the second substrate, and the projections of the conductive patterns to the first transparent substrate are partially overlapped to form sensing blocks. The spacers are disposed between the first conductive patterns and the second conductive patterns to form a gap.06-25-2009
20090278815TOUCH PANEL - A touch panel includes a first substrate, a first electrode layer, a second substrate, a second electrode layer and an extrinsic spacing layer. The first electrode layer is disposed on the first substrate, and the second substrate is parallel to the first substrate. The second electrode layer is disposed on the second substrate, and the first electrode layer and the second electrode layer are located between the first substrate and the second substrate. In addition, the extrinsic spacing layer is located between the first electrode layer and the second electrode layer, wherein a plurality of conductive particles is scattered in the extrinsic spacing layer.11-12-2009
20100182278RESISTIVE TOUCH CONTROL DEVICE AND DRIVING METHOD AND DRIVING CONTROLLER THEREOF - A resistive touch control device and driving methods and a driving controller thereof are provided to switch operation modes of a touch panel. Depending on the user's requirement, the touch panel can be operated in multi-touch mode or only in an analog mode with high resolution. In other words, the touch control device can be operated in a digital mode, the analog mode, or a hybrid mode including both of the digital and the analog modes.07-22-2010

Jian-Feng Li, Hangzhou City CN

Patent application numberDescriptionPublished
20080253678Denoise method on image pyramid - The present invention is to provide a denoise method on Gaussian/Laplacian image pyramid, which integrates Pyramid analysis/synthesis algorithm, MMSE (minimum mean square error) filter and NL (non local) filter on the image pyramid to reconstruct and output a denoised image of an original input image through a plurality of iterative procedures, and utilizes an auto-adaptive noise estimation algorithm to find parameter of noise level used by the NL filter, so as to be easily embedded in mobile or handheld devices for obtaining better noise removing and anti-shaking results and remove noise much faster than the conventional denoise method, but only with less quality loss.10-16-2008
20090285504Method for estimating noise according to multiresolution model - A method for estimating noise according to a multiresolution model is applied to an imaging device and comprises steps of: using an imaging sensor of the imaging device to capture a series of images of a scene under different imaging conditions; processing the images with a multiresolution transformation process to obtain a series of sub-images corresponding to different frequency layers; processing a series of the sub-images of the images that are in a same frequency layer to generate an averaged image; determining a difference between each of the sub-images in the same frequency layer and the averaged image corresponding to that frequency layer, and calculating the differences and the averaged image to obtain noise level functions of the imaging sensor in the different frequency layers under the different imaging conditions; and defining the noise level functions of the imaging sensor as noise samples for establishing an a priori model database.11-19-2009
20100177981Face image processing method - A face image processing method is applied to an electronic device, such that the electronic device can perform a face detection to a digital image to obtain a face image in the digital image automatically, and perform a skin color detection to the face image to exclude non-skin features such as eyes, eyeglasses, eyebrows, a moustache, a mouth and nostrils on the face image, and form a skin mask in an area range of the face image belonging to skin color, and finally perform a filtering process to the area range of the face image corresponding to the skin mask to filter high-frequency, mid-frequency and low-frequency noises of an abnormal skin color in the area range of the face image, so as to quickly remove blemishes and dark spots existed in the area range of the face image.07-15-2010

Patent applications by Jian-Feng Li, Hangzhou City CN

Jian-Feng Li, Waipu Township TW

Patent application numberDescriptionPublished
20100110039Multi-Touch Resistive Touch Panel and Detecting Method - A multi-touch resistive touch panel including a first substrate, a second substrate and a spacing element is provided. The spacing element is disposed between the first substrate and the second substrate. The first substrate has a first transparent electrode, two first conductive electrodes and two second conductive electrodes, wherein the first conductive electrodes are disposed at two boundaries of the first transparent electrode in parallel, and the second conductive electrode are disposed at another two boundaries of the first transparent electrode in parallel and perpendicular to the first conductive electrodes. The second substrate has many second transparent electrodes disposed on a surface of the second substrate facing the first transparent electrode and arranged in a first axial direction, and the second transparent electrodes themselves are extended in a second axial direction perpendicular to the first axial direction.05-06-2010