Patents by Inventor Wen Yuan

Wen Yuan 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).

  • Automatic gain control method and apparatus in communication system having discontinuous transmission mode
    Patent number: 7466776
    Abstract: An automatic gain control method used in a wireless receiver is disclosed. The method comprise the following steps: Receiving a first frame, amplifying a RF signal corresponding to the first frame with a gain value and down converting the RF signal to generate a baseband signal. Updating the gain value according to the power level of the baseband signal corresponding to the first frame, then using the updated gain value to amplify the RF signal corresponding to a second frame when receiving the second frame. Determining whether a first signal block is in the discontinuous transmission mode or not, wherein the first frame belongs to the first signal block. And resuming the gain value according to the power level of the baseband signal corresponding to a third frame if the first signal block is in the discontinuous transmission mode.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: December 16, 2008
    Assignee: Mediatek Corporation
    Inventors: Ti-Wen Yuan, Wei-Sheng Yin
  • Resistive memory device having enhanced resist ratio and method of manufacturing same
    Publication number: 20080266931
    Abstract: Disclosed herein are new resistive memory devices having one or more buffers layer surrounding a dielectric layer. By inserting one or more buffer layers around the dielectric layer of the device, the resistive ratio of the device is highly enhanced. For example, tests using this unique stack structure have revealed a resistance ratio of approximately 1000× over conventional electrode-dielectric-electrode stack structures found in resistive memory devices. This improvement in the resistance ratio of the resistive memory device is believed to be from the improved interface coherence, and thus smoother topography, between the buffer layer(s) and the dielectric layer.
    Type: Application
    Filed: April 25, 2007
    Publication date: October 30, 2008
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Denny Tang, Tai-Bor Wu, Wen-Yuan Chang, Tzyh-Cheang Lee
  • Systems and methods for providing asynchronous messaging
    Patent number: 7437464
    Abstract: Systems and methods are provided for providing asynchronous communication between a source processor and a destination processor. In one embodiment, a method includes receiving an information request; making a first call to the destination processor, such that the first call includes the information request; and ending the first call while the destination processor determines an information response, such that said ending terminates a synchronous communication between the source processor and the destination processor. Furthermore, the method includes making a second call to the source processor, such that the second call includes the information response; ending the second call, such that said ending terminates a synchronous communication between the destination processor and the source processor; and providing asynchronously the information response.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: October 14, 2008
    Assignee: Federal Home Loan Mortgage Corporation
    Inventors: Jian Xu, Chung-Wen Yuan
  • Photocatalytic Deposition of Metals and Compositions Comprising the Same
    Publication number: 20080241640
    Abstract: A photocatalytic metal deposition process and a resulting nanocomposite are described. The nanocomposite includes an electrically conducting carbonaceous material, a photoactive metal oxide and a metal. Metals for deposition include noble metals, metal alloys and other transition metals in which the metal is laid down precisely and in a predetermined fashion on one or more surfaces of a composite. Deposition provides a high performance electrocatalyst for a number of suitable applications.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Krishnan Rajeshwar, Norma Tacconi, C.R. Chenthamarakshan, Wesley Wampler, Thomas F. Carlson, Wen-Yuan Lin
  • Driving Device of Display Device and Related Method
    Publication number: 20080238895
    Abstract: In order to increase charge time of thin-film transistor (TFT) cells of a display device, the present invention provides a driving device, which includes a timing controller, a column driver module and at least a delay module. The timing controller is used for outputting at least a load signal. The column driver module is coupled to the timing controller and includes at least a column driver. The delay module can be installed in the column driver module or the timing controller, and is used for delaying the load signal for a predetermined time. The load signal is utilized to trigger the plurality of column drivers to output video data provided by a video data source and the video data corresponds to pixels on a panel of the display device. The driving device can use in a cascading, point-to-point or bus-type interfacing architecture to transmit the load signal.
    Type: Application
    Filed: January 10, 2008
    Publication date: October 2, 2008
    Inventors: Jin-Ho Lin, Che-Li Lin, Wen-Chi Lin, Wen-Yuan Tsao
  • Process for fabricating chip embedded package structure
    Patent number: 7405103
    Abstract: A process for fabricating a chip embedded package structure is provided. A stiffener is disposed on a tape. A chip is disposed on the tape inside a chip opening of the stiffener such that an active surface of the chip faces the tape. Through holes are formed passing the tape and exposing bonding pads of the chip on the active surface respectively. Conductive material is deposited into the though holes to form a plurality of conductive vias which are connected to the bonding pads respectively. A multi-layered interconnection structure is formed on the tape on the opposite of the chip, wherein the multi-layered interconnection structure comprises an inner circuit which is connected to the conductive vias, and the inner circuit has a plurality of metallic pads on a surface of the multi-layered interconnection structure away from the tape.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: July 29, 2008
    Assignee: VIA Technologies, Inc.
    Inventor: Wen-Yuan Chang
  • Valuable paper validator
    Publication number: 20080173832
    Abstract: A valuable paper validator for use in a vending (coin change) machine is disclosed to include a delivery unit for delivering a valuable paper through a delivery path, a LED package having multiple LED chips spaced above the delivery path and controllable to emit different wavelengths of intense pulsed light, a collimator lens for collimating light passing from the LED package through the valuable paper, a photodiode spaced below the delivery path for collecting light passed through the valuable paper for verifying the authenticity of the valuable paper, and a condensing lens for focusing different wavelengths of light passed through the valuable paper onto the photodiode.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 24, 2008
    Inventors: Tien-Yuan Chien, Wei-Jr Chen, Hai-En Tsai, Wen-Yuan Tsai, Cheng-Yi Lin, Ya-Huei Yang
  • ISFET using PbTiOas sensing film
    Patent number: 7387923
    Abstract: A PbTiO3/SiO2-gated ISFET device comprising a PbTiO3 thin film as H+-sensing film, and a method of forming the same. The PbTiO3 thin film is formed through a sol-gel process which offers many advantages, such as, low processing temperature, easy control of the composition of the film and easy coating over a large substrate. The PbTiO3/SiO2 gated ISFET device of the present invention is highly sensitive in aqueous solution, and particularly in acidic aqueous solution. The sensitivity of the present ISFET ranges from 50 to 58 mV/pH. In addition, the disclosed ISFET has high linearity. Accordingly, the disclosed ISFET can be used to detect effluent.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: June 17, 2008
    Assignee: National Yunlin University of Science and Technology
    Inventors: Jung-Chuan Chou, Wen Yuan Liu, Wen Bin Hong
  • OPERATING METHOD AND CHANGER FOR OPTICAL MODULE/PRINTER MODULE SYSTEM
    Publication number: 20080130020
    Abstract: A method of operating an optical module/printer module system through a changer such that either the optical module or the printer module is driven. A first module and a second module is defined such that if the first module is an optical module, the second module is a printer module and if the first module is a printer module, the second module is an optical module. The operating method includes the following steps. In step one, the changer engages with the first module and drives the first module. In step two, the changer rotates so that the changer detaches from the first module and engages with the second module. In step three, the changer drives the second module.
    Type: Application
    Filed: October 4, 2007
    Publication date: June 5, 2008
    Applicant: Transpacific IP, Ltd.
    Inventors: Wen-Yuan Chang, Chih-Wen Huang
  • BACKLIGHT UNIT
    Publication number: 20080123321
    Abstract: A backlight unit is disclosed. The backlight unit contains a light-generating device and a polarization conversion apparatus, wherein the polarization conversion apparatus acts as the top substrate of the light-generating device. The polarization conversion apparatus converts natural light originating from the light-generating device into polarized light of a predetermined polarization. Therefore, the backlight unit of the present invention is capable of providing polarized light.
    Type: Application
    Filed: January 24, 2007
    Publication date: May 29, 2008
    Inventors: Hung-Huei Hsu, Wen-Yuan Chuang
  • CHIP AND MANUFACTURING METHOD AND APPLICATION THEREOF
    Publication number: 20080122077
    Abstract: The present invention provides a chip and its manufacturing methods and applications. Regarding the chip, there are several solder bumps on the backside of the chip. The difference of the invented chip from the convention chips is that the solder bumps are embedded in an insulting layer and a thermal-plastic material layer of the invented chip backside and separated by a conductive layer from the insulting layer and thermal-plastic material layer. Additionally, there are some end members in the insulting layer, and the end member corresponds to one solder bump. Through the present invention, chips with different functions can be integrated together, so that the needs for having portable communication devices lighter and smaller would be met.
    Type: Application
    Filed: September 8, 2006
    Publication date: May 29, 2008
    Applicant: VIA Technologies, Inc.
    Inventors: Kwun-Yao Ho, Moriss Kung, Wen-Yuan Chang, Hsueh Chung Shelton Lu
  • Arrangement of conductive pads on grid array package and on circuit board
    Patent number: 7372169
    Abstract: The present invention discloses a dense arrangement in the conductors of a package and the corresponding conductive pads of a circuit board. The conductors and the corresponding conductive pads are separated into at least a first group in a peripheral region of the grid array package, and a second group in another region of the grid array package. Most in the first group of conductive pads are apart at a first pitch, most in the second group of conductive pads are apart at a second pitch which is less than the first pitch. According to the shrinking in the conductive trace on a conductive layer and the shrinking in the through hole, the first pitch and the second pitch are optimized for the maximum conductors and the corresponding conductive pads.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: May 13, 2008
    Assignee: VIA Technologies, Inc.
    Inventor: Wen-Yuan Chang
  • Removing tool removing a protection strip of car
    Patent number: 7367098
    Abstract: A tool for removing a protection strip of car comprises mainly a handle, a stem part and a shovel blade; the stem part has an elongate straight rod with a S-shaped plate at one end thereof; the outer end of the S-shaped plate at one end thereof; the outer end of the S-shaped plate has a wider part wided together with the shove blade; the shovel blade is a L-shaped plate including two symmetrical triangle plates; the outer ends of the two triangle plates each has an edge part; when the tool is used for removing a protection strip of a car, the edge part of a plate of the L-shaped angle is set in contact with the protection strip, and is pushed with a pressure; in that case, the adhesive under the protection strip can be cut and removed easily and quickly; simultaneously, the space between the S-shaped plate and the plate part can be used for providing a guide function to the cut pressure.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: May 6, 2008
    Assignee: Double Dynasty Co., Ltd.
    Inventor: Wen-Yuan Wang
  • Protractor for teaching aid
    Publication number: 20080078092
    Abstract: A protractor for teaching aid includes a semicircular disk being provided along a curved section with angle marks and along a straight edge with length marks to form a main body of the protractor, and at a center with a locating hole or a locating bar; and at least one indicating strip being provided at two ends at one side with a short bar each, with a receiving hole correspondingly formed behind each short bar, and on one surface along a centerline with a central marker. The indicating strips may be rotatably connected at the short bars or the receiving holes to the locating hole or the locating bar, respectively, or rotatably connected end to end to form a polygon, so that the protractor has not only the function of measuring an angle, but also many other teaching functions.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Inventor: Wen-Yuan Lin
  • Connecting structure for T-square
    Publication number: 20080078093
    Abstract: A connecting structure for T-square including a raised connecting section provided at an upper middle position of a crosspiece of the T-square, and a recessed fixing section correspondingly provided at a lower front end of a straight rule of the T-square for detachably receiving the raised connecting section therein. Therefore, the crosspiece and the straight rule of the T-square may be easily assembled to and disassembled from each other. And, the disassembled T-square may be conveniently carried or stored.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Inventor: Wen-Yuan Lin
  • Scanner carrier
    Patent number: 7342692
    Abstract: A carrier device for a contact image sense optical scanner. The carrier device incorporates a pair of magnets with identical poles facing each other or a fluid filled sealed chamber for exerting an equal pressure on a scanning module within the scanner and maintaining close contact with a document platform throughout a scanning operation.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 11, 2008
    Assignee: Transpacific IP, Ltd.
    Inventor: Wen-Yuan Chang
  • Removing tool removing a protection strip of car
    Publication number: 20080030035
    Abstract: A tool for removing a protection strip of car comprises mainly a handle, a stem part and a shovel blade; the stem part has an elongate straight rod with a S-shaped plate at one end thereof; the outer end of the S-shaped plate at one end thereof; the outer end of the S-shaped plate has a wider part welded together with the shove blade; the shovel blade is a L-shaped plate including two symmetrical triangle plates; the outer ends of the two triangle plates each has an edge part; when the tool is used for removing a protection strip of a car, the edge part of a plate of the L-shaped angle is set in contact with the protection strip, and is pushed with a pressure; in that case, the adhesive under the protection strip can be cut and removed easily and quickly; simultaneously, the space between the S-shaped plate and the plate part can be used for providing a guide function to the cut pressure.
    Type: Application
    Filed: January 12, 2007
    Publication date: February 7, 2008
    Inventor: Wen-Yuan Wang
  • Intake and exhaust guide device for pneumatic tool
    Publication number: 20080023209
    Abstract: A which mainly comprises a handle having a cylindrical hole and in outer end thereof mounted with a pressure shunt connector; the center of the pressure shunt connector is furnished with a cylindrical hole to be mounted with an extension rod, and one end thereof is screwed in an intake screw hole of the handle; the pressure shunt connector mounted in a cylindrical hole of the handle has a ring-shaped groove, a straight hole and a screw hole, which are formed into an exhaust passage of the pneumatic tool; the pressure shunt connector has two screw holes which are connected with two parallel pressure tubes respectively.
    Type: Application
    Filed: January 12, 2007
    Publication date: January 31, 2008
    Inventor: Wen-Yuan Wang
  • Balance for teaching
    Patent number: D570720
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: June 10, 2008
    Assignee: Youth Toy Enterprise Co., Ltd
    Inventor: Wen-Yuan Lin
  • Balance for teaching
    Patent number: D570721
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: June 10, 2008
    Assignee: Youth Toy Enterprise Co., Ltd
    Inventor: Wen-Yuan Lin