Patents by Inventor A Wen Yu

A Wen Yu 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).

  • Switch-mode self-coupling auxiliary power device
    Patent number: 7106603
    Abstract: A switch-mode self-coupling power device additionally increases a set of high voltage auxiliary winding in the transformer and increases a control circuit and an energy transmitting circuit in the primary side circuit of the conventional circuit. When the load is too low, the control circuit may control the energy transmitting circuit according to the variation of the load so that the voltage of the high voltage auxiliary winding can be transmitted to a controller for operation through the energy transmitting circuit. Therefore, the design of PWM controller (pulse width modulation controller) auxiliary power circuit according to the present invention, which is not limited by the magnitude of a dummy load at the secondary side of the transformer, can conform to international regulations and is a product with industrial purpose and conforming to green mode.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: September 12, 2006
    Assignee: Li Shin International Enterprise Corporation
    Inventors: Feng-Hsu Lin, Wen-Yu Lu
  • Control device for a motor unit of a food processor
    Patent number: 7098616
    Abstract: A control device includes a control module controlling a polarity switching unit connected electrically to a motor unit of a food processor to provide a first current path for an input power signal through the motor unit when the control module is operated in a processing mode, and further controlling the polarity switching unit to provide a second current path for the input power signal through the motor unit when the control module is operated in a braking mode. A power control unit is connected electrically to the motor unit and the control module, and controls the power control unit such that the power control unit reduces an amount of the input power signal that flows through the second current path during a braking period when the control module is operated in the braking mode.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: August 29, 2006
    Assignee: Ya Horng Electronic Co., Ltd.
    Inventors: Yu-Feng Tsai, Fu-Wen Yu, Chia-Cheng Lin
  • Method And Related Apparatus For Decreasing Delay Time
    Publication number: 20060181513
    Abstract: A method for increasing a report rate of a wireless mouse for decreasing delay time of the wireless mouse includes selecting a packet mode, inputting data corresponding to the selected packet mode according to control signals inputted into the wireless mouse, performing a first error check operation according to a first data, performing a second error check operation according to the first error check operation and the inputted data, forming an error check block according to the second error check operation, forming a packet according to the error check block and the inputted data, and outputting the packet through a radio-frequency channel.
    Type: Application
    Filed: March 14, 2006
    Publication date: August 17, 2006
    Inventors: Bi-Hui Lin, Chin-Hsin Yang, Chin-Chou Lee, Chun-Huang Lin, Wen-Yu Yang
  • Spray head structure capable of preventing backflow of perfume liquid
    Patent number: 7080761
    Abstract: A spray head structure capable of preventing backflow of perfume liquid comprises a spray head, a locking base, a kit, a bottle, and a compressible ball. A rolling ball is held inside a gas-supplying tube of the spray head. A cross-shaped trench is formed on one end of a gas-guiding device, and several liquid-guiding grooves are formed on the other end of the gas-guiding device. The cross-shaped trench supplies the gas with a flow channel, and it also prevents the rolling ball from blocking the channel. If the compressed compressible ball is released, the rolling ball will be attracted backward by suction force such that the rolling ball blocks the flow channel and prevents the perfume liquid from flowing into the inside of the compressible ball.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: July 25, 2006
    Assignee: Ing Wen Precision Ent. Co., LTD
    Inventor: Yuan-Wen Yu
  • Leakproof perfume spray head
    Patent number: 7080760
    Abstract: A leakproof perfume spray head comprises a spray head, a locking shell, an inner sleeve, a rotation shaft, and an outer cover, wherein the locking shell is locked to a perfume bottle and a sleeving section on a lower end of the inner sleeve is inserted into the locking shell. An orientation ring is jammed in the shallow trench that forms on the top of the inner sleeve, wherein the center of the shallow trench communicates with a first through hole. A threaded section is formed on the inner surface of the first through hole. The rotation shaft includes a second through hole and protrudent circular teeth. The protrudent threads are engaged with the threaded section, wherein a gap is formed between the inner sleeve and the first through hole. The protrudent threads of the rotation shaft are locked to the threaded section of the inner sleeve.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: July 25, 2006
    Assignee: Ing Wen Precision Ent. Co., Ltd.
    Inventor: Yuan-Wen Yu
  • Method And Related Apparatus For Decreasing Delay Time And Power Consumption Of A Wireless Mouse
    Publication number: 20060146022
    Abstract: The present invention provides a method for increasing a report rate of a wireless mouse for decreasing delay time of the wireless mouse, which includes: selecting a packet mode from a plurality of packet modes and inputting data corresponding to the selected packet mode for forming a packet according to control signals inputted into the wireless mouse; and outputting the packet through a radio-frequency channel. The present invention further provides a method for reducing power consumption of a mouse, which includes: detecting a moving speed of the mouse; and transmitting packets with a low report rate when the moving speed of the mouse is less than a default value.
    Type: Application
    Filed: April 27, 2005
    Publication date: July 6, 2006
    Inventors: Bi-Hui Lin, Chin-Hsin Yang, Chin-Chou Lee, Chun-Huang Lin, Wen-Yu Yang
  • Method for treating a contaminated fluid, system for treating a contaminated fluid, and method for making a biomass carrier suitable for treating a contaminated fluid
    Publication number: 20060138048
    Abstract: A method for treating a contaminated fluid includes: preparing biomass-carrier pieces made from a fiber component selected from a non-woven fabric, a fiber bundle assembly, a bulky fiber bundle assembly, a woven fabric, and a braided strap; and mixing the biomass-carrier pieces with the contaminated fluid, so as to remove the contaminated parts of the contaminated fluid. A system for treating a contaminated fluid, and a method for making a biomass carrier suitable for treating a contaminated fluid are also disclosed. The biomass carrier thus made has a minimum thickness region at a bonding line, so as to reinforce the structure of the biomass carrier, and a loose region surrounding the minimum thickness region, so as to improve attachment of microorganisms thereon and facilitate immersion into water.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 29, 2006
    Applicant: Kang Na Hsiung Enterprise Co., Ltd.
    Inventors: Yen-Jung Hu, Hsi-Yu Chen, Wen-Yu Lu
  • LEAKPROOF PERFUME SPRAY HEAD
    Publication number: 20060138172
    Abstract: A leakproof perfume spray head comprises a spray head, a locking shell, an inner sleeve, a rotation shaft, and an outer cover, wherein the locking shell is locked to a perfume bottle and a sleeving section on a lower end of the inner sleeve is inserted into the locking shell. An orientation ring is jammed in the shallow trench that forms on the top of the inner sleeve, wherein the center of the shallow trench communicates with a first through hole. A threaded section is formed on the inner surface of the first through hole. The rotation shaft includes a second through hole and protrudent circular teeth. The protrudent threads are engaged with the threaded section, wherein a gap is formed between the inner sleeve and the first through hole. The protrudent threads of the rotation shaft are locked to the threaded section of the inner sleeve.
    Type: Application
    Filed: December 29, 2004
    Publication date: June 29, 2006
    Inventor: Yuan-Wen Yu
  • ESD protection circuit with tunable gate-bias
    Patent number: 7064942
    Abstract: An ESD protection circuit with tunable gate-bias coupled between a first and second pads for receiving power supply voltages. The ESD protection circuit includes a diode, a resistor coupled between the cathode of the diode and the first pad, a capacitor coupled between the cathode of the diode and the second pad, a first transistor of a first conductivity type having a gate coupled to the cathode of the diode, a drain coupled to the anode of the diode and a source coupled to the second pad, a second transistor of a second conductivity type having a gate coupled to the cathode of the diode, a drain coupled to the anode of the diode and a source coupled to the first pad, and a third transistor of the first conductivity type having a gate coupled to the anode of the diode, a drain coupled to the first pad and a source coupled to the second pad.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: June 20, 2006
    Assignee: Silicon Integrated Systems Corp.
    Inventors: Ming-Dou Ker, Wen-Yu Lo
  • Resistor and switch-minimized variable analog gain circuit
    Patent number: 7057454
    Abstract: A DSM variable high-gain circuit includes a differential amplifier and a negative feedback loop comprising low resistance poly resistors and switches configured in a T-structure having a junction point as part of the negative feedback loop. A third resistor branch of the T-structure includes a switch that connects the junction point through the third resistor branch to ground when in a closed state and that turns the third resistor branch into an open circuit when in an open state The switch of the third resistor branch, when in the closed state, produces a gain at the output of the variable high-gain circuit.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: June 6, 2006
    Assignee: Infineon Technologies AG
    Inventors: Fan Yang Ma, Wen Yu
  • Method of manufacturing an ESD protection device with the same mask for both LDD and ESD implantation
    Patent number: 7049659
    Abstract: A method of manufacturing a semiconductor device having a first and second transistor of an ESD protection and internal circuit respectively. The method includes the steps of providing a substrate, forming gates of the first and second transistor on the substrate, depositing a mask layer and patterning the mask layer using one single mask to remove the mask layer on the gates, a portion of a drain region of the first transistor, and a source and drain region of the second transistor, implementing ESD implantation under the regions without the patterned mask layer, removing the mask layer and forming sidewall spacers of the gates, and implementing drain diffusion.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: May 23, 2006
    Assignee: Silicon Intergrated Systems Corp.
    Inventors: Ming-Dou Ker, Hsin-Chyh Hsu, Wen-Yu Lo
  • Video conference system utilizing a mobile phone and method thereof
    Publication number: 20060103721
    Abstract: A video conference system utilizing a mobile phone and the method thereof is provided. The video conference system includes a computer host, a mobile phone, a computer monitor, and an internet. The mobile phone includes an audio detection device, a photo-sensing device, a conversion unit, a transceiver unit, and a loudspeaker. The mobile phone records images and sounds, and outputs a video signal and an audio signal to the computer host accordingly. The computer further sends the video and audio signals to a remote client via an internet. The images and sounds in the remote client are sent to the computer host via the internet, and the sounds are played out by the loudspeaker of the mobile phone.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 18, 2006
    Inventors: Chien-Chung Shih, Wei-Wen Yu
  • PDA carrying case
    Publication number: 20060100005
    Abstract: A personal data assistant (PDA) carrying case includes a main body (10), an expansion cover (40) having a first clasp (46) extending therefrom, a resilient clip (22) mounted on the main body, and a button (29). An opening (33) is defined in the main body for matching the expansion cover. A locking edge (36) is formed for engaging with the first clasp. A through hole (24) is defined in main body corresponding to the first clasp. The resilient clip has a projecting portion (222) corresponding to the through hole. The resilient clip deforms elastically to have the projecting portion pressing the button, so that the button drives the first clasp to disengage the first clasp from the locking edge of the main body.
    Type: Application
    Filed: June 3, 2005
    Publication date: May 11, 2006
    Applicant: HON HAI Precision Industry CO., LTD.
    Inventors: Yun-Lung Chen, Xian-Huang Gao, Wen-Yu Zhang
  • Method of manufacturing an ESD protection device with the same mask for both LDD and ESD implantation
    Publication number: 20060081927
    Abstract: A method of manufacturing a semiconductor device having a first and second transistor of an ESD protection and internal circuit respectively. The method includes the steps of providing a substrate, forming gates of the first and second transistor on the substrate, depositing a mask layer and patterning the mask layer using one single mask to remove the mask layer on the gates, a portion of a drain region of the first transistor, and a source and drain region of the second transistor, implementing ESD implantation under the regions without the patterned mask layer, removing the mask layer and forming sidewall spacers of the gates, and implementing drain diffusion.
    Type: Application
    Filed: November 25, 2005
    Publication date: April 20, 2006
    Inventors: Ming-Dou Ker, Hsin-Chyh Hsu, Wen-Yu Lo
  • BACKLIGHT MODULE AND LCD APPARATUS
    Publication number: 20060072340
    Abstract: A backlight module and a liquid crystal display (LCD) apparatus using the same are disclosed. The backlight module includes a bottom plate and multiple lamps disposed separately over the bottom plate. The bottom plate has multiple lower-reflectivity areas underneath the lamps and multiple higher-reflectivity areas between neighboring lower-reflectivity areas. The LCD apparatus includes such a backlight module and a LCD panel disposed over the lamps.
    Type: Application
    Filed: September 29, 2004
    Publication date: April 6, 2006
    Inventors: Cheng-Min Liao, Wen-Yu Lin
  • Integrated receiver dryer sleeve
    Publication number: 20060070724
    Abstract: A heat exchanger for a vehicle is provided having a core with a set of flow tubes connected to a header. The header includes a receiver/dryer housing in fluid communication with the flow tubes. An insert assembly is received in an end of the receiver/dryer housing and includes a sleeve having a substantially smooth outer surface, a filter portion received within the sleeve, and a plug portion configured to form a substantially fluid-tight seal with the sleeve. The inner diameter of the receiver/dryer housing and the outer diameter of the sleeve are substantially equal to each other.
    Type: Application
    Filed: October 6, 2004
    Publication date: April 6, 2006
    Inventors: Wen Yu, Ramchandra Patel
  • Low-voltage triggered PNP for ESD protection in mixed voltage I/O interface
    Patent number: 7023676
    Abstract: An low-voltage triggered PNP device for input signals with voltage level larger than VDD or less than VSS. The ESD protection device provides an ESD path from a first to a second node for protection of an internal circuit. The device comprises a substrate of a first conductivity type coupled to the first node, a first doped region of a second conductivity type in the substrate, wherein the first doped region is floated, a second doped region of the first conductivity type in the first doped region coupled to the second node, and a third doped region in the substrate, adjacent to the first doped region, to have a low trigger voltage.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: April 4, 2006
    Assignee: Silicon Integrated Systems Corp.
    Inventors: Ming-Dou Ker, Wen-Yu Lo
  • Integrated condenser oil cooler with a receiver/dryer
    Publication number: 20060060327
    Abstract: A heat exchanger for a vehicle is provided, where the heat exchanger includes core having first, and second sets of flow tubes extending between first and second headers and defining separate flow paths. One of the headers includes a first portion in fluid communication with the first set of flow tubes and a second portion defining a receiver/dryer chamber that is in fluid communication with the second set of flow tubes. A dryer is located within the receiver/dryer chamber.
    Type: Application
    Filed: September 23, 2004
    Publication date: March 23, 2006
    Inventors: Wen Yu, Ramchandra Patel, Manos Eliades, Jack Riddle
  • Digital pulse width modulation
    Patent number: 6998928
    Abstract: A digital technique for pulse width modulation (PWM) utilizes a tapped delay line 304 receiving a reference clock and generating a plurality of time delayed reference clock transitions having finer time resolution than the reference clock signal. A multiplexer 120 receives the plurality of time delayed reference clock transitions as an input thereto and producing an output when one of the plurality of time delayed reference clock transitions is addressed. An accumulator circuit 524 generates control timing signals associated with the input signal sampling rate Fsample that are used to select outputs from the delay line 304 representing a pulse width modulated output signal.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: February 14, 2006
    Assignee: Motorola, Inc.
    Inventors: Robert E. Stengel, Wen Yu
  • Computer front bezel
    Patent number: D516569
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: March 7, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Yun-Lung Chen, Zheng-Dong Wang, Jun Tang, Wen-Yu Zhang