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Cheng-Yuan

Cheng-Yuan Chang, Chung Li TW

Patent application numberDescriptionPublished
20110194708ACTIVE NOISE REDUCTION SYSTEM - An active noise reduction system is provided for receiving an audio input signal and a noise interference signal and calculating an audio broadcasting signal according to a Feedback Filtered-X Least-Mean-Square (FFXLMS) algorithm, wherein the FFXLMS algorithm optimizes a (convergence factor) μ so as to decrease the numbers of divisions operated by the active noise reduction system and increase the operation speed of the active noise reduction system.08-11-2011

Cheng-Yuan Chen, Taoyuan Hsien TW

Patent application numberDescriptionPublished
20110128595SCANNING SPEED ADJUSTING METHOD AND SCANNING SYSTEM - A scanning speed adjusting method is used in a scanning system including a scanning module and a controller. Firstly, a document is scanned by the scanning module, thereby generating an image data. Then, the image data is received by the controller, and transmitted to an output device. An input speed of receiving the image data from the scanning module and an output speed of transmitting the image data to the output device are detected by the controller. If the input speed and the output speed are different, a scanning speed of the scanning module is adaptively adjusted according to a difference between the input speed and the output speed.06-02-2011

Cheng-Yuan Chen, Taipei City TW

Patent application numberDescriptionPublished
20090168080Poster printing control module, method of poster printing control, and multi-functional printer - A method of poster printing control, applicable to a multi-functional printer, comprising at least one printing module and a scanning module, includes using a scanning module to scan an original paper to obtain a digital copy of known size; setting a size of a paper to be printed; dividing the digital copy into a plurality of sub-images; up-scaling the sub-images to the size of the paper to be printed; using the printing module to print out the sub-images on the paper to be printed. Thereby, the poster printing is completed by means of the multi-functional printer.07-02-2009

Cheng-Yuan Cheng, Chandler, AZ US

Patent application numberDescriptionPublished
20090168171MULTILAYER WIRE-GRID POLARIZER WITH OFF-SET WIRE-GRID AND DIELECTRIC GRID - A multilayer wire-grid polarizer for polarizing light includes a stack of thin film layers disposed over a substrate, including a wire-grid array of elongated metal elements having lengths longer than a wavelength of the light and a period less than half the wavelength of the light. One of the layers can include a thin film layer with a refractive index greater than a refractive index of the substrate. One of the thin film layers can include a dielectric array of non-metal elements.07-02-2009
20100328770MULTILAYER WIRE-GRID POLARIZER WITH OFF-SET WIRE-GRID AND DIELECTRIC GRID - A wire-grid polarizer includes a wire-grid layer disposed over a substrate. A plurality of contiguous dielectric-grid layers are contiguous with one another and disposed directly on top of the wire-grid layer. The plurality of contiguous dielectric-grid layers includes different materials with different indices of refraction. The array of dielectric material elements and the array of metal elements are oriented substantially parallel with one another, and the arrays having substantially equal periods.12-30-2010
20120008205MULTILAYER WIRE-GRID POLARIZER WITH OFF-SET WIRE-GRID DIELECTRIC GRID - A wire-grid polarizer includes a stack of thin film layers disposed over a substrate including a wire grid layer and a plurality of thin film layers disposed between the wire grid layer and the substrate. The wire-grid layer includes an array of elongated metal elements, comprising lengths longer than a wavelength of visible light, a period less than 200 nanometers, a height less than 400 nanometers; and a material selected from the group consisting of aluminum, silver, gold, copper, or combinations thereof. The plurality of thin film layers disposed between the wire grid layer and the substrate include at least one dielectric grid layer and at least one thin film layer comprising silicon. The dielectric grid layer and the wire-grid are substantially parallel with one another, have substantially equal periods, and have substantially equal widths.01-12-2012

Patent applications by Cheng-Yuan Cheng, Chandler, AZ US

Cheng-Yuan Lin, Taichung TW

Patent application numberDescriptionPublished
20120112739Derailleur Cable Detecting Assembly For An Electric-Auxiliary Bicycle - A derailleur cable detecting assembly for an electric-auxiliary bicycle has a body and a detecting device. The body is mounted on a frame of the electric-auxiliary bicycle, is connected to a derailleur cable and has a casing and a cover. The casing has a chamber and a through hole. The cover is detachably mounted on the casing to mount a cable wire of the derailleur cable in the body. The detecting device is mounted in the body, is connected to the derailleur cable and has a circuit board and a magnetic element. The circuit board is mounted in the chamber of the casing, faces the cable wire and has an electric wire and multiple magnetic sensors. The magnetic sensors are mounted on the circuit board at intervals. The magnetic element is mounted on the cable wire between the casing and the cover, facing the magnetic sensors of the circuit board.05-10-2012

Cheng-Yuan Lin, Hsinchu TW

Patent application numberDescriptionPublished
20100284988UTILIZATION OF SHIELD EFFECT FOR DOPAMINE DETECTION AND REAGENT DEVELOPMENT - The present invention relates to fusion proteins of monoamine oxidase B (MAO B)-green fluorescent protein (GFP) and utilizes “shield effect” to detect the dopamine under physiological condition, providing the reagent and method for dopamine detection.11-11-2010

Cheng-Yuan Lo, Hsinchu Hsien TW

Patent application numberDescriptionPublished
20100105433Apparatus and Method for Controlling Subscriber Identity Module Card - A Subscriber Identity Module (SIM) card control apparatus applied to a mobile communication device is provided. The mobile communication device has a first SIM card and a second SIM card. The SIM card control apparatus includes a judgment unit, a SIM card controller and a switch device. The judgment unit is used to generate a selection signal according to a to-be-accessed SIM card among the first and the second SIM cards. The SIM card controller transmits signals via a group of signal lines. The switch device is used to selectively connect the group of signal lines to the first SIM card or the second SIM card according to the selection signal.04-29-2010

Cheng-Yuan Wang, Taipei TW

Patent application numberDescriptionPublished
20100293320METHOD AND APPARATUS FOR BYTE-ACCESS IN BLOCK-BASED FLASH MEMORY - Techniques are described herein for managing data in a block-based flash memory device which avoid the need to perform sector erase operations each time data stored in the flash memory device is updated. As a result, a large number of write operations can be performed before a sector erase operation is needed. In addition, the block-based flash memory can emulate both programming and erasing on a byte-by-byte basis, like that provided by an EEPROM.11-18-2010

Cheng-Yuan Yang, Taipei TW

Patent application numberDescriptionPublished
20090073644Optical Disk Drive and Notebook Computer Using the Same - An optical disk drive (ODD) disposed in the base of a notebook computer is provided. The front end of the tray of the ODD has a panel having a body with a side edge, a guide member and a fastening member. The guide member is connected to the body, and it can move relatively to the body. The guide member has a guide channel having a first end and a second end. The fastening member has a sheet structure and a guide pillar inserted into the guide channel protruding from the sheet structure. When the guide member is moved to allow the guide pillar to move from the second end to the first end along the guide channel, the sheet structure of the fastening member is driven to protrude from the side edge to be fastened to the base of the notebook computer.03-19-2009
20090150912Optical Disk Device with Magnetic Latching Function and the Same in Computer Apparatus - The present invention relates to a computer apparatus and its optical disk device with magnetic latching function. The optical disk device includes a main body and a disk tray moveably provided in the main body to be released or returned into the main body. The disk tray has a magnetic member on one side thereof and corresponds to a variable magnetic member in the main body while the disk tray is returned into the main body. The variable magnetic member is controlled to have the same or the opposite magnetism as the magnetic member has, for attracting the magnetic member to forcedly latch the disk tray in the main body, or for not attracting the magnetic member to free the disk tray.06-11-2009
20100293562Electronic Device with Optical Disc Drive - An optical disk drive (ODD) disposed in the base of a notebook computer is provided. The front end of the tray of the ODD has a panel having a body with a side edge, a guide member and a fastening member. The guide member is connected to the body, and it can move relatively to the body. The guide member has a guide channel having a first end and a second end. The fastening member has a sheet structure and a guide pillar inserted into the guide channel protruding from the sheet structure. When the guide member is moved to allow the guide pillar to move from the second end to the first end along the guide channel, the sheet structure of the fastening member is driven to protrude from the side edge to be fastened to the base of the notebook computer.11-18-2010