Abstract: A device for outputting a luminance signal is disclosed. The device includes a chrominance judgment unit, a field observation unit, and an output unit. The chrominance judgment unit and the field observation unit are used to determine whether a 3D luminance signal is affected. The output unit outputs a resultant luminance signal according to the determination results of the chrominance judgment unit and the field observation unit. According to the present invention, the resultant luminance signal can be accurately obtained by judging characteristics of the 3D luminance signal and a 3D chrominance signal even if a 3D comb filter is wrongly used in a motion condition.

Abstract: A hierarchical sensing method for a touch panel is disclosed. The touch panel has a matrix of points for detecting a touch or touches. The method includes dividing the points into a plurality of blocks; selecting several points in each one of the blocks as designated points; sensing first data from each one of the designated points; determining a set of possible touched points according to the first data sensed from each one of the designated points; sensing second data from the set of possible touched points; and determining if each one of the possible touched points is an actual touched point according to the second data sensed from said one possible touched point. By using the present invention method, a faster sensing speed and a greater sensing accuracy can be achieved.

Abstract: A ghost cancellation method for the multi-touch sensitive device is disclosed. The multi-touch sensitive device includes a sensing array having multiple lines of a first axis and multiple lines of a second axis intersecting with each other. All the lines of the sensing array are scanned to determine which ones of the lines are touched, so as to determine touch point candidates. For each touch point candidate, a driving signal is applied to the line of the first axis, and the line of the second axis is detected to check if the touch point candidate is actually touched.

Abstract: A deblock method for processing at least one image including a plurality of pixels. The method comprises the step of determining a shift amount of block boundary by pixel data differences between adjacent pixels and thereby determining block boundaries between macroblocks in the image, and the step of optionally performing a deblock process on the block boundaries.

Abstract: A device for outputting a luminance signal is disclosed. The device includes a chrominance judgment unit, a field observation unit, and an output unit. The chrominance judgment unit and the field observation unit are used to determine whether a 3D luminance signal is affected. The output unit outputs a resultant luminance signal according to the determination results of the chrominance judgment unit and the field observation unit. According to the present invention, the resultant luminance signal can be accurately obtained by judging characteristics of the 3D luminance signal and a 3D chrominance signal even if a 3D comb filter is wrongly used in a motion condition.

Abstract: A device for outputting a luminance signal and a method thereof are disclosed. The device includes an image smoothing unit, a band pass filter unit, and a summing unit. The image smoothing unit receives a 2D luminance signal and decreases a signal intensity of a component of the 2D luminance signal within a frequency range with respect to a carrier frequency of a chrominance component. The band pass filter unit passes the component of the 2D luminance signal within the frequency range with respect to the carrier frequency. The summing unit sums the output of the image smoothing unit and the output of the band pass filter unit to generate a resultant luminance signal. The present invention is capable of avoiding the occurrence of saw-tooth or sparkling situation caused by inharmonious switching between a 1D comb filter and a 2D comb filter.

Abstract: A dynamic filtering device includes a variation detector, a coefficient generator and a filter. The cut-off frequency of the filter is dynamically adjusted according to variations of an input signal. A higher signal-to-noise ratio is obtained when a finger moves in slow motion and its response time is reduced when the finger moves in fast motion, therefore improving the response time and the noise immunity of the filter.

Abstract: A feature-based contrast enhancement apparatus comprises a histogram calculator, a feature value calculator, a first combining circuit, a histogram equalizer and a remapper. By keeping the hardware cost as low as a picture-based contrast enhancement apparatus, the invention has an advantage of suppressing the background noise and enhancing the image details.

Abstract: A touch panel device includes a touch panel and two or more controllers. The touch panel includes four regions. Each region includes a plurality of driving conductors extended along a first direction, and a plurality of sensing conductors extended along a second direction perpendicular to the first direction. Each controller is in charge of one of the region. Since the length of each driving conductor and each sensing conductors is one half of that of the conventional driving conductor and sensing conductor, each controller controls one fourth of the area of the touch panel, and is responsible for one fourth of the capacitance of the touch panel. The touch panel device can be well controlled by the controller without using a single controller with higher detecting sensibility and cost.

Abstract: A touch panel device includes a touch panel and a controller. The touch panel includes a first region and a second region. The first region includes a plurality of first driving conductors extended along a first direction, and a plurality of first sensing conductors extended along a second direction perpendicular to the first direction. The second region includes a plurality of second driving conductors extended along the first direction, and a plurality of second sensing conductors extended along the second direction. The controller is used for outputting a plurality of driving signals in an ordered sequence of the second direction to drive the plurality of first driving conductors and the plurality of second driving conductors, and for receiving a plurality of sensing signals from the plurality of first sensing conductors and the plurality of second sensing conductors in an ordered sequence of the first direction.

Abstract: A touch panel includes a first substrate, first conductive circuits, second conductive circuits, and a shield circuit. The first conductive circuits are disposed on a first surface of the first substrate. Each of the first conductive circuits includes first electrodes. The second conductive circuits are disposed on the second first substrate. Each of the second conductive circuits includes second electrodes. The shield circuit is disposed on the second surface of the first substrate. The shield circuit for blocking out noise includes a transparent conducting layer and a conductive ring disposed on the transparent conducting layer. The conductive ring is electrically connected to a voltage supply.

Abstract: An adaptive blending MCI method and device thereof are disclosed in the embodiments of the present invention. The adaptive blending MCI method uses adjacent four motion vectors to get the corresponding pixels, and uses linear interpolation equation to blend four pixels to reduce block artifacts. The method uses adaptive weighting coefficient to favor reliable motion vector to avoid bad motion vector degrade image quality.

Abstract: A frame rate up-conversion apparatus comprises a motion vector detecting circuit, a dynamic quality control circuit, a motion compensation circuit and a pull-down recovery circuit. According to quality of motion vectors, a corresponding image output mode is determined dynamically. A visual impact due to incorrect motion vectors is reduced and the visual experience is also improved.

Abstract: A hierarchical sensing method for a touch panel is disclosed. The touch panel has a matrix of points for detecting a touch or touches. The method includes dividing the points into a plurality of blocks; sensing first data from the respective blocks; determining which one or ones of the blocks are touched blocks according to the first data; sensing second data from each point of the touched blocks; and determining which one or ones of the points are touched points according to the second data. By using the method of the present invention, fast sensing speed and high sensing accuracy can be both achieved.

Abstract: A touch sensing method for detecting positions of touching is disclosed. In the present invention, a reference touch profile is provided. A variable ideal combination profile indicating multiple touches is obtained by synthesizing a plurality of reference touch profiles at different positions. The variable ideal combination profile is matched with a sensing signal. Actual touch positions can be identified from the sensing signal when the matching of the variable ideal combination profile with the sensing signal is optimal.

Abstract: A dynamic noise filter is disclosed, which includes a noise estimation circuit, a TNR filtering circuit, a SNR filtering circuit, a blending circuit and a motion estimation circuit. By performing noise estimation for each image, the invention dynamically adjusts the strengths of the TNR filter and the SNR filter as well as a blending ratio between the outputs of the TNR filter and the SNR filter, thereby obtaining the best image quality.

Abstract: An image processing system having scaling and sharpness device and method thereof are described. The global frequency detecting unit calculates a vertical frequency level of the input pixels along a vertical direction and a horizontal frequency level along a horizontal direction. The gradient-calculating summation unit calculates a set of gradient brightness levels according to a portion of the input pixels along a set of directions respectively. The threshold-adjusting device adjusts a first threshold and a second threshold based on the relationship of the vertical frequency level and the horizontal frequency level.

Abstract: The invention discloses an image processing method. The image processing method utilizes the relatively low point and the relatively high point of the luminance of the pixels in the frame to generate the crest lines. Then, various image processing are performed according to the state of the crest line.

Abstract: An apparatus of low angle interpolation is disclosed, which includes a low angle calculation circuit, a direction decision circuit, a post-processing circuit, an interpolator and a line buffer. According to a counterclockwise operating matrix and a clockwise operating matrix whose shapes look like triangles, the invention calculates sum of absolute differences (SAD) for each specified angle to correctly detect edges, thereby minimizing jaggies and frequency alias.

Abstract: A heat dissipation structure for a liquid crystal television is disclosed. The liquid crystal television includes a front plate and a rear plate. The front plate has a screen and a metal backboard. The heat dissipation structure includes a printed circuit board (PCB) mounted to the metal backboard; a television integrated circuit (IC) chip for controlling operations of the liquid crystal television being attached on the PCB; and one or more heat dissipating posts provided between the PCB and the metal backboard. The heat generated by the television IC chip is dispersed to the metal backboard via the heat dissipating post or posts.