Patents by Inventor Wen Cheng

Wen Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for regulating power in portable audio/video playback device
    Patent number: 7376331
    Abstract: A method and a system for regulating power in a portable audio/video playback device enabling the portable audio/video playback device to completely play an audio/video multimedia file or data without sufficient power or external power. A processing unit is employed for detecting a remaining power of the portable audio/video playback device and for computing an average power consumption rate and a remaining playback time of the audio/video multimedia file or data to thereby appropriately reduce an output level of the video or audio output signals. Accordingly, power consumption of the portable audio/video playback device is minimized so that a complete playback of the audio/video multimedia file or data can be performed by the portable audio/video playback device before the power is exhausted.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: May 20, 2008
    Assignee: Cyberlink Corp.
    Inventor: Yiou-Wen Cheng
  • Apparatus for processing substrates and method therefor
    Patent number: 7371023
    Abstract: An apparatus (100) for processing substrates includes: a substrate cleaning device (20), which cleans the substrates with treating liquid; a developing device (40); and a treating liquid recovery system (30), which is connected with the cleaning device and the developing device. The treating liquid recovery system can convey the treating liquid from the cleaning device to the developing device. Thus the treating liquid that has been used in the cleaning device can be reused in the developing device. Therefore the apparatus can economize on treating liquid and reduce costs.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: May 13, 2008
    Assignee: Innolux Display Corp.
    Inventors: Yu-Ying Chan, Ching-Lung Wang, Wen-Cheng Hsu, Tseng-Kui Tseng, Chen Kun Teng, Ho-Li Hsieh
  • Method for removing developing solution
    Patent number: 7367725
    Abstract: An apparatus (3) for removing developing solution from a substrate (30) includes a working table (36) for placing the substrate, a supporting frame (33) positioned on the working table, a gas dispensing nozzle (31) mounted on the supporting frame, and a water dispensing nozzle (32) mounted on the supporting frame. The apparatus can remove the residual developing solution from the substrate and needs not to lift the substrate. The substrate is safely processed and the working time is improved.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: May 6, 2008
    Assignee: Innolux Display Corp.
    Inventors: Wen-Cheng Hsu, Ching-Lung Wang, Yu-Ying Chan, Tseng-Kuei Tseng
  • Chemical mechanical polishing slurry, its preparation method, and use for the same
    Publication number: 20080096470
    Abstract: A chemical mechanical polishing slurry for polishing a copper layer without excessively or destructively polishing a barrier layer beneath the copper layer is disclosed and includes an acid, a surfactant, and a silica sol having silica polishing particles that are surface modified with a surface charge modifier and that have potassium ions attached thereto. A method for preparing the chemical mechanical polishing slurry and a chemical mechanical polishing method using the chemical mechanical polishing slurry are also disclosed.
    Type: Application
    Filed: August 27, 2007
    Publication date: April 24, 2008
    Applicant: EPOCH MATERIAL CO., LTD.
    Inventors: Hui-Fang Hou, Wen-Cheng Liu, Yen-Liang Chen, Jui-Ching Chen
  • Bathing chair with fixing device
    Publication number: 20080092288
    Abstract: A bathing chair with a fixing device comprises a front frame, a rear frame, a bearing assembly with several gliding blocks, with an opening cut into at least one of the gliding blocks, a seat, a handle, and a fixing device. The fixing device is mounted at a gliding block and further comprises two lugs, each having a hole and aligned on two sides of the gliding block, a blocking piece, having an excentric hole, an axis, passing through the holes of the two lugs and the excentric hole of the blocking piece, and an arm, attached to a periphery of the blocking piece. Manual turning of the blocking piece causes the blocking piece to reach through the opening, blocking the seat from moving.
    Type: Application
    Filed: October 23, 2006
    Publication date: April 24, 2008
    Inventor: Yu-Wen Cheng
  • Method for reducing image artificiality by adjusting dot position for overlapped dots in a printer
    Patent number: 7362481
    Abstract: An adjusting dot position method for overlapped dots in a printer is disclosed. The pixels of an image are first input. Then, it determines whether the pixel is an overlapped dot or not. If yes and a pixel on a left side is a blank dot, the magenta, cyan or yellow in the pixel is moved to the left side pixel. Then, it determines whether the pixel is an overlapped dot or not. If yes and a pixel on an upper side is a blank dot, the magenta, cyan or yellow dot in the pixel is moved to the upper side pixel.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: April 22, 2008
    Assignee: Sunplus Technology Co., Ltd.
    Inventor: Wen Cheng Ho
  • Field Emission Type Planar Lamp And Method For The Same
    Publication number: 20080079348
    Abstract: A field emission type planar lamp with stacked structure and method for the same are proposed. The field emission type planar lamp includes an anode plate, a cathode plate and a panel. The anode plate includes a anode substrate. The cathode plate is stacked with the anode plate and includes an isolation mesh with a plurality of apertures and a cathode mesh with a plurality of through holes. The through holes are corresponding to the apertures. The panel is sealed with t he anode substrate to form a vacuum cavity to enclose the anode unit and the cathode plate. Electron beams generated by the cathode plate bombard the anode plate to illuminate. The illumination will exit from one side of the panel through passage defined by the aperture and the through, besides exit from one side of the anode substrate. Therefore, the field emission type planar lamp has two-side illumination.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Inventors: Kuei-Wen Cheng, Shie-Heng Lee, Chun-Yen Hsiao
  • Block decoding method and system capable of decoding and outputting data in a longitudinal direction
    Patent number: 7352904
    Abstract: A block decoding method and system capable of decoding and outputting data in a longitudinal direction, which obtains a start address in an input compressed datastream for each block of a decompressed image by a pre-scanned compressed datastream such that the system can obtain 90°-rotated blocks by performing a Huffman decoding in a longitudinal direction, a 90°-rotated zigzag arrangement, an inverse quantization and an IDCT. Since the decoding direction is identical to the output direction of a printer, only a desired column of blocks of the decompressed image is temporarily stored for output and accordingly required memory size is relatively reduce.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: April 1, 2008
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Kuo-Kuang Keng, Wen-Cheng Ho, Jyh-Kai Chang
  • Electron Beam Etching Apparatus and Method for the same
    Publication number: 20080067421
    Abstract: A electron beam etching apparatus uses carbon nanotube as electron emitter. The electron beam etching apparatus includes a vacuum chamber, a cathode plate, an anode plate and a driver unit. The cathode plate and the anode plate are arranged in the vacuum chamber and parallel to each other. The cathode plate includes a plurality of cathode units, where each of the cathode units uses a carbon nanotube as an electron emitter. A gate conductive layer is provided atop the cathode unit. The anode plate includes a substrate and an etching target. The driver unit is electrically connected to the cathode unit and gate conductive layer. The driver unit controls the cathode unit through the gate conductive layer to generate electron beam for etching. The accuracy of etching process can be improved and the cathode unit has the advantage of replacement possibility.
    Type: Application
    Filed: August 16, 2006
    Publication date: March 20, 2008
    Inventors: Kuei-Wen Cheng, Jeng-Ywan Jeng, Te-Fong Chan
  • TOUCH-SENSITIVE INPUT DEVICE AND ELECTRONIC DEVICE INCORPORATING THE TOUCH-SENSITIVE INPUT DEVICE
    Publication number: 20080053713
    Abstract: An electronic device comprises a housing, a touch pad disposed on a first surface of the housing, the touch pad being capable of outputting a signal when touched, a processor disposed on a second surface, the processor being capable of processing the signal, wherein the second surface and the first surface are non-coplanar. The electronic device further comprises a flexible printed circuit formed integrally with the touch pad and the processor and the flexible printed circuit is capable of electrically connecting the touch pad on the first surface to the processor on the second surface.
    Type: Application
    Filed: August 24, 2007
    Publication date: March 6, 2008
    Applicant: High Tech Computer Corp. (A legal entity of Taiwan)
    Inventors: Hsing-Chiang HUANG, Che-Hung HUANG, Hsiu-Chin LIU, Hsun-Wen CHENG, Chin-Wei HO, Yao-Tsung CHANG
  • COLOR-COATED, FOULING-RESISTANT CONDUCTIVE CLOTH AND MANUFACTURING METHOD THEREOF
    Publication number: 20080057815
    Abstract: The present invention relates to a color-coated fouling-resistant conductive cloth and a manufacturing method thereof. The method includes the steps of providing a conductive cloth interwoven by natural fibers or artificial fibers and containing a metal layer, and forming at least one colored resin-coating layer on the metal layer of the conductive cloth by means of blade coating, wherein the surface of the resin-coating layer does not exceed the intersections of warp yarns and weft yarns of the conductive cloth. The conductive cloth of the present invention has the characteristics of colored appearance, artificial or environmental contamination resistance, and low surface resistance.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 6, 2008
    Applicant: Formosa Taffeta Co., Ltd.
    Inventors: Feng-Chang Chang, Hsin-Feng Cho, Jian-Wen Cheng
  • VIDEO TRANSMISSION APPARATUS AND CONNECTOR MODULE THEREOF
    Publication number: 20080055486
    Abstract: A video transmission apparatus and the connector module thereof are provided. The connector module includes a first resistor and a second resistor. The first resistor is coupled between a voltage source and a transmission pin. The second resistor is coupled between a ground terminal and a connector. When the transmission pin is in a floating state, the transmission pin outputs a floating voltage. And when the connector is coupled to the transmission pin, the transmission pin outputs a connection voltage. According to the DC voltage output by the transmission pin, the connector module judges the coupling state between the connector and the transmission pin.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 6, 2008
    Applicant: ASUSTEK COMPUTER INC.
    Inventors: Chung-Ta Chin, Cheng-Jan Chi, Yi-Hsuan Huang, Wen-Cheng Ko, Jung-Rung Shr
  • Voice communication system
    Publication number: 20080049913
    Abstract: A voice communication system for achieving a public switch telephone network (PSTN) communication and an internet communication is provided. The system comprises a host, a control device and a telephone. The invention features advantages of both the PSTN and the internet, and further covers the natural shortcomings of each other.
    Type: Application
    Filed: March 12, 2007
    Publication date: February 28, 2008
    Inventors: Ming-Lih Liu, Wen-Cheng Shih, Ting-Chien Kuo
  • Image scaling system capable of saving memory
    Publication number: 20080049045
    Abstract: An image scaling system includes a window memory, a longitudinal scaler, a buffer and a latitudinal scaler. The window memory temporarily stores partial data of N image lines. The longitudinal scaler performs a longitudinal scaling operation on the partial data of the N image lines to thereby produce partial data of a longitudinal image line. The latitudinal scaler performs a latitudinal scaling operation on the partial data of the longitudinal image line to thereby produce scaling-part data of a latitudinal image line. The longitudinal scaler and the latitudinal scaler use a window average to perform an image shrinking operation and a bi-linear interpolation average to perform an image expanding operation.
    Type: Application
    Filed: June 18, 2007
    Publication date: February 28, 2008
    Applicant: Sunplus Technology Co., Ltd.
    Inventors: Chih-Cheng Ku, Chun-Chi Chen, Wen-Cheng Ho
  • Shift register with lower coupling effect and a related LCD
    Publication number: 20080048964
    Abstract: A shift register for use in an LCD is disclosed. The shift register provides better gate driving signals with the lower coupling effect. The shift register includes two switches. The control node of the first switch is electrically coupled to the control node of the second switch. One end of the first switch receives a clock signal, and the other end of the first switch is electrically coupled to one end of the second switch. The other end of the second switch outputs a gate driving signal. Both of the two switches are controlled by a control signal.
    Type: Application
    Filed: March 15, 2007
    Publication date: February 28, 2008
    Inventors: Lee-Hsun Chang, Yu-Wen Lin, Jing-Ru Chen, Shu-Wen Cheng
  • Field Emission Based Photosensitive Drum for Image Forming Apparatus
    Publication number: 20080043086
    Abstract: A photosensitive drum for image forming apparatus includes an inner roller, an outer roller and a photoelectric conversion layer. The inner roller of circular cylindrical shape is formed by a cathode substrate. The outer surface of the circular cylinder is configured with a plurality of cathode units. The outer roller of hollow circular cylindrical shape is formed by an anode substrate. The inner diameter of the outer roller is greater than that of the inner roller such that the inner roller is snugly fitted inside the outer roller. The anode substrate includes a plurality of anode units corresponding to the cathode units. The photoelectric conversion layer is a hollow circular cylinder with an inner diameter greater than the outer diameter of the outer roller such that photoelectric conversion layer is snugly fitted onto the surface of the outer roller.
    Type: Application
    Filed: August 16, 2006
    Publication date: February 21, 2008
    Inventors: Kuei-Wen Cheng, Jeng-Ywan Jeng, Te-Fong Chan
  • Decorative Light String With A Screw Head
    Publication number: 20080037249
    Abstract: A light string with a screw head is provided, including a light string and a screw head. The light string includes a plurality of LEDs connected in series by a plurality of wires. The wires connected to the screw head. The screw head further includes an insulating body, a screw shell and a contacting end. The insulating body further includes a circuit to regulate the current before providing to the LEDs. The light string with a screw head of the present invention can be used with conventional light string to extend the use of the conventional light string and provide more varieties for decorative and lighting purposes.
    Type: Application
    Filed: August 14, 2006
    Publication date: February 14, 2008
    Inventor: Wen-Cheng Lai
  • Recycling system for engine oil filter
    Patent number: 7328503
    Abstract: A recycling system is used for processing an engine oil filter and comprises a frame, a filter net, a cutting device, a dividing device, and a compressing device. Thus, all of the parts of the used engine oil filter can be divided, processed and reused respectively, thereby efficiently achieving the resource recycling purpose, and thereby preventing the used engine oil filter from causing environmental pollution.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: February 12, 2008
    Inventor: Wen-Cheng Houg
  • Coating apparatus and method using the same
    Patent number: 7326300
    Abstract: A coating apparatus (2) includes a work table (20) having a plurality of blowing holes (201) for suspending a substrate (200) thereabove, a coating unit (22) having a photoresist coating nozzle (222) and a supplying device (224) for photoresist material. The photoresist coating nozzle is disposed above the work table, and the supplying device connects to the coating nozzle for supplying photoresist thereto. In operation, the substrate to be coated is continuously suspended in the gas just above but not in contact with the work table. Therefore, accumulation of static electricity and/or foreign particles on the substrate can be avoided. Gas emitting from the blowing holes can remove foreign particles from the surface of the work table and the backside of the work table.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: February 5, 2008
    Assignee: Innolux Display Corp.
    Inventors: Lu Nan Sun, Ching Lung Wang, Wen Cheng Hsu, Yu-Ying Chan
  • Method for producing a golf club head
    Publication number: 20080022502
    Abstract: A method for producing a golf club head has a molding step, an injecting step, a surface finishing step and a sealing step. The molding step has obtaining a base and a striking faceplate and punching a recess formed in a front surface of the base and having an opening receiving the striking faceplate, a window and multiple through holes in the base. The injecting step has blocking the window by a stopper and injecting vibration-absorbing material into the recess. The surface finishing step has removing the stopper when the vibration-absorbing material is foamed and molded and then mounting at least one sealing element to block up the at least one through hole. The sealing step has adhering a transparent panel on the recess to seal the window to obtain a golf club head with vibration-absorbing effect. Users can see the vibration-absorbing material from the transparent panel.
    Type: Application
    Filed: March 8, 2007
    Publication date: January 31, 2008
    Inventor: Wen-Cheng Tseng