Cheng-Chin
Cheng-Chin Chen, Hsinchu City TW
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20090016751 | METHOD AND APPARATUS FOR CLEANING ATTACHMENT ON TRANSFER ROLLER IN AN IMAGE FORMING APPARATUS - An image forming apparatus includes a photoconductor, a transfer roller, and a power supply for providing a voltage signal for the transfer roller to transfer surface attachments on the transfer roller to the photoconductor. Moreover, before providing the voltage signal for the transfer roller, a surface voltage level of the photoconductor can be adjusted according to the voltage signal in order to ensure that the surface voltage level of the photo conductor can be kept in a safe charging range. Therefore, the transferring efficiency of the transfer roller is ensured and damage to the photo conductor is prevented. | 01-15-2009 |
Cheng-Chin Huang, Taipei City TW
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20130135808 | PORTABLE ELECTRONIC DEVICE - A portable electronic device includes a casing, a keyboard, and a latching member. The casing has an upper surface, a lower surface, and a notch extending from the upper surface to the lower surface. The keyboard is detachably configured on the upper surface. The keyboard has a latching slot passing through the notch and protruding from the lower surface. The latching member is movably disposed on the lower surface and spans two opposite sides of the notch. The latching member moves between a first position and second position with respect to the keyboard, wherein when the latching member moves to the first position, the latching member is fastened in the latching slot of the keyboard. | 05-30-2013 |
Cheng-Chin Huang, Taipei TW
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20140106584 | PORTABLE ELECTRONIC DEVICE - A portable electronic device, for inserting and connecting an electrical connector, includes a housing assembly, an electrical socket disposed in the housing assembly and having a slot, a cover plate and an elastic member. The slot is used for inserting and connecting the electrical connector. The cover plate is pivotally connected to the second casing, and is adapted to pivot relative to the housing assembly between a first position and a second position. When the cover plate is at the second position, the cover plate and the housing assembly form an opening. When the cover plate is at the first position, the cover plate covers a part of the area of the opening and shields a part of the electrical socket. The elastic member is connected to both the second casing and the cover plate, and makes the cover plate to be located in the first position. | 04-17-2014 |
Cheng-Chin Huang, Taichung TW
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20140175457 | SIC-BASED TRENCH-TYPE SCHOTTKY DEVICE - A SiC-based trench-type Schottky device is disclosed. The device includes: a SiC substrate having first and second surfaces; a first contact metal formed on the second surface and configured for forming an ohmic contact on the substrate; a drift layer formed on the first surface and including a cell region and a termination region enclosing the cell region; a plurality of first trenches with a first depth formed in the cell region; a plurality of second trenches with a second depth less than the first depth; a plurality of mesas formed in the substrate, each defined between neighboring ones of the trenches; an insulating layer formed on sidewalls and bottoms of the trenches; and a second contact metal formed on the mesas and the insulating layer, extending from the cell region to the termination region, and configured for forming a Schottky contact on the mesas of the substrate. | 06-26-2014 |
Cheng-Chin Liu, Taichung City TW
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20130328595 | DRIVING CIRCUIT, DRIVING METHOD, AND STORING METHOD - A driving circuit includes at least one output end, at least one driving voltage module, and at least one signal module. The output end receives and outputs an analog voltage. The at least one driving voltage module is connected with the at least one output end and generates a driving voltage, wherein the driving voltage module determines a voltage value of an output voltage according to a relation between an analog voltage and the driving voltage and transmits the output voltage to the at least one output end. The at least one signal module is connected with the at least one output end and outputs an analog data according to the analog voltage, wherein the at least one driving voltage module stores a residual voltage of the at least one signal module when the at least one signal module converts the analog voltage and the analog voltage is larger than the driving voltage. | 12-12-2013 |
20140347061 | ELECTROSTATIC DETECTING CIRCUIT AND METHOD THEREOF - An electronic detecting circuit includes at least one electrostatic protective module, at least one detection module, and a microprocessor controller module. The at least one detection module is respectively connected to the at least one electrostatic protective module, and the at least one detection module generates a driving record signal according to a driving state of the at least one electrostatic protective module. The microprocessor controller module is coupled with the at least one detection module, wherein the microprocessor controller module records the driving record signal when the at least one detection module transmits the driving record signal to the microprocessor controller module. | 11-27-2014 |
Cheng-Chin Liu, Hsinchu City TW
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20120038686 | DRIVING CIRCUIT FOR DRIVING ELECTRONIC PAPER - A driving circuit for driving electronic paper is provided, which includes a plurality of driving units. Each driving unit couples to display units of a row of the electronic paper through a data terminal for driving a display unit from a previous gray level to a target gray level during a driving period. Each driving unit includes a data driver and a switch. The data driver respectively provides a black data DC voltage and a white data DC voltage to the data terminal during a black phase and a white phase of the driving period, and provides a first pulse and a second pulse to the data node during a program phase of the driving period. The switch conducts the data node to a middle voltage between the first pulse and the second pulse. | 02-16-2012 |
Cheng-Chin Liu, Tai-Chung County TW
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20100117982 | METHOD FOR DETECTING TOUCH POINT AND TOUCH PANEL USING THE SAME - The present invention relates to a method for detecting touch points and a touch panel using the same. The method includes the steps of: providing a resistive pressure-sensing matrix includes M X-axis sensing lines and N Y-axis sensing lines, wherein the i | 05-13-2010 |