ELAN MICROELECTRONICS CORP. Patent applications |
Patent application number | Title | Published |
20130194234 | SENSING CIRCUIT AND METHOD FOR A CAPACITIVE TOUCH PANEL - A sensing method and circuit for a capacitive touch panel sense the capacitance variation of a lateral capacitor formed at the intersection of two traces of the capacitive touch panel, to distinguish a real point from a ghost point. A sensing cycle includes two non-overlapping clock phases. In the first clock phase, the voltages across the lateral capacitor and across a sensing capacitor are set. In the second clock phase, the voltage at a first, terminal of the lateral capacitor is changed, and a second terminal of the lateral capacitor is connected to a first terminal of the sensing capacitor, causing a voltage variation at a second terminal of the sensing capacitor. This voltage variation is used to determine whether the intersection is touched. The sensing method and circuit reflect the status of the lateral capacitor in real-time and prevent the location of the touch point from being misjudged. | 08-01-2013 |
20130008892 | INDUCTION HEATING COOKER AND CONTROL CIRCUIT THEREFOR - An induction heating cooker and a control circuit therefor are provided. The cooker includes a switch element and an inductive coil, which is coupled between a power voltage and a first terminal of the switch element. A second terminal of the switch element is coupled to a common voltage. The control circuit includes first and second comparators and a pulse generator. The first comparator receives voltages of two terminals of the inductive coil and thus outputs a trigger signal. The second comparator receives a reference voltage and a voltage of the first terminal of the switch element, and enables a fading signal when the voltage of the first terminal is higher than the reference voltage. When the trigger signal is enabled, the pulse generator outputs a pulse to control the switch element. When the fading signal is enabled, the pulse generator reduces a pulse width of the pulse. | 01-10-2013 |
20100128997 | CODE PATTERN FOR PROVIDING INFORMATION AND DECODING METHOD AND IMAGE PROCESSING DEVICE - A code pattern for providing information is disclosed, which can effectively improve the ratio of effective marks, and the effective marks are distributed in a rhombus area. The code pattern comprises: a plurality of nominal positions and a plurality of information marks. The nominal positions are respectively located at a plurality of intersections of a plurality of first hypothetical lines and a plurality of second hypothetical lines, and the first hypothetical lines are parallel to one diagonal line within the rhombus area. The plurality of information marks are respectively disposed within the area formed by the nominal positions, and each information mark is used to represent one of at least two values. | 05-27-2010 |
20100102134 | METHOD FOR PRODUCING CODE PATTERNS, AND CODE PATTERNS - A plurality of code patterns including at least two code patterns is provided. The code patterns represent identical information. Adjacent ones of the code patterns of the code patterns meet at an angle. The code patterns at least reduce visual impact. | 04-29-2010 |
20100078478 | CODE PATTERN HAVING CROSS-SHAPED POSITIONING PATTERN AND IMAGE PROCESSING DEVICE FOR PROCESSING THE SAME - A code pattern having cross-shaped positioning patterns is disclosed, comprising: a plurality of marks, which at least include a central positioning mark, a first positioning mark, a second positioning mark, a third positioning mark, and a fourth positioning mark; the central and the first to fourth positioning marks are distributed in a region along with other marks. The first to fourth positioning marks are four neighboring marks that are closest to the central positioning mark in distance. In addition, The central and the first to fourth positioning marks are disposed in the shape of a cross within the region, and corresponding to a coordinate obtained by adding together four coordinates from the first to fourth positioning marks then dividing a resulted sum thereof by four, is equivalent to a coordinate corresponding to the central positioning mark. | 04-01-2010 |
20090265927 | INPUT DEVICE AND ITS MANUFACTURING METHOD - The integrated structure of the stress sensor section with the control section facilitates the confirmation of the matching of both sections before the input device is incorporated into an electronic device. For example, it is possible to select only the input device which exhibits favorable matching as a result of the confirmation and to incorporate it in the electronic device. Therefore, with the above-described structure of the present invention, an input device that enables constantly favorable matching of both the stress sensor section and the control section can be provided. | 10-29-2009 |
20090208133 | IMAGE DISPLACEMENT DETECTION METHOD - The present invention provides an image displacement detection method, which employs the center of a 1 | 08-20-2009 |