Patents by Inventor Yan Yu

Yan 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).

  • Patent number: 8370340
    Abstract: A computer-implemented method and system of building a user reputation database for use in a user location data system. The method and system receive user location information containing personally identifiable data of a user and user position data. The user position data may or may not represent one or more actual geographic positions of the user. The user location information is temporarily stored and analyzed to provide a spam score associated with the user position data indicative of whether the user position data represents the actual geographic positions of the user. Data indicative of the spam score is also provided to user reputation database to store a user reputation score associated with the user.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: February 5, 2013
    Assignee: Google Inc.
    Inventors: Yan Yu, Sam Liang, Michael Chu, Yuhua Luo, Zhengrong Ji
  • Patent number: 8345396
    Abstract: An RC delay circuit for providing electrostatic discharge (ESD) protection is described. The circuit employs an NMOS transistor and a PMOS transistor to produce a large effective resistance using a relatively small circuit layout area.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: January 1, 2013
    Assignee: Macronix International Co., Ltd.
    Inventors: Shih-Yu Wang, Chia-Ling Lu, Yu-Lien Liu, Yan-Yu Chen, Che-Shih Lin, Tao-Cheng Lu
  • Patent number: 8336417
    Abstract: A chain for a motion transmission apparatus comprises a plurality of spacers and two links two links at both sides of the respective spacers for connecting spacers together. The spacers are equidistantly spaced from one another by a receiving space which is longitudinally asymmetrical and provided for holding rolling elements.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: December 25, 2012
    Assignee: Hiwin Technologies Corp.
    Inventors: Po-Chuan Hsu, Yan-Yu Chen
  • Publication number: 20120304793
    Abstract: A ball screw has a chain received in a circulation path of the ball screw, and the chain comprises a plurality of partition portions and a connecting portion for connecting the partition portions, a plurality of rolling elements are retained in the chain in such a manner that between each two neighboring partition portions is arranged a rolling element, each of the rolling elements is partially in contact with the return passage of each of the return assemblies to define receiving spaces in the return passage for accommodation of the connecting portion, so that the chain can be moved more smoothly in the return passage, and the manufacturing cost of the return assembly is reduced.
    Type: Application
    Filed: August 15, 2012
    Publication date: December 6, 2012
    Inventor: Yan-Yu CHEN
  • Patent number: 8316732
    Abstract: A roller screw structure comprises a nut, a screw and a rolling assembly. The rolling assembly is movably disposed between the nut and the screw and includes at least one rolling cone. The slantwise rolling surface of the rolling cone contacts the spiral groove surfaces of the nut and the screw in a line-to-line manner, and the angle between the rolling surface and the self-rotation axis of the rolling cone is from 0 degree to 6.3 degrees. Thereby, making the distance between the self-rotation axis and the rolling surface of the rolling cone of the rolling assembly different can prevent the occurrence of speed difference caused at different rolling paths of the rolling assembly.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: November 27, 2012
    Assignee: Hiwin Technologies Corp.
    Inventors: Wen-Chia Wu, Yan-Yu Chen
  • Publication number: 20120286322
    Abstract: A semiconductor device includes a first well region of a first conductivity type, a second well region of a second conductive type within the first well region. A first region of the first conductivity type and a second region of the second conductivity type are disposed within the second well region. A third region of the first conductivity type and a fourth region of the second conductivity type are disposed within the first well region, wherein the third region and the fourth region are separated by the second well region. The semiconductor device also includes a switch device coupled to the third region.
    Type: Application
    Filed: July 20, 2012
    Publication date: November 15, 2012
    Applicant: Macronix International Co., Ltd.
    Inventors: SHIH-YU WANG, Chia-Ling Lu, Yan-Yu Chen, Yu-Lien Liu, Tao-Cheng Lu
  • Patent number: 8309978
    Abstract: An LED module includes a first dielectric layer, and a first patterned conductive layer having first, second, and third die-bonding pads. Each die-bonding pad includes a pad body having a die-bonding area, and an extension extended from the pad body. The extension of the first die-bonding pad extends in proximity to the die-bonding area of the second die-bonding pad. The extension of the second die-bonding pad extends in proximity to the die-bonding area of the third die-bonding pad. A second dielectric layer disposed on the first patterned conductive layer includes three dielectric members corresponding respectively to the die-bonding pads of the first patterned conductive layer. Each dielectric member includes a chip-receiving hole exposing the die-bonding area of a respective die-bonding pad for attachment of an LED chip thereto, and a wire-passage hole spaced apart from the chip-receiving hole to expose partially the first patterned conductive layer for bonding a wire.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: November 13, 2012
    Assignees: Silitek Electronic (Guangzhou) Co., Ltd., Lite-On Technology Corp.
    Inventors: Chih-Lung Liang, Yan-Yu Wang
  • Patent number: 8305721
    Abstract: An electrostatic discharge protection device for protecting an inner circuit, which is operated in a source voltage, is provided and includes a protection unit and a control unit. The protection unit provides a discharge path for transmitting an electrostatic signal from a pad to a ground line. According to a voltage level at a control end, the protection unit adjusts a holding voltage and a triggering voltage determining whether to conduct the discharge path. When the source voltage is supplied, the control unit transmits the input voltage to the control end of the protection unit, so as to raise the holding and the triggering voltages of the discharge path. When the source voltage is not supplied, the control unit switches the control end of the protection unit to a floating condition by the electrostatic signal, so as to lower the holding and the triggering voltages of the discharge path.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: November 6, 2012
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Shih-Yu Wang, Yan-Yu Chen, Yu-Lien Liu
  • Patent number: 8302499
    Abstract: A transmission system with a lubrication device is disclosed. The lubrication device is defined with an accommodation trough and an oil hole. In the accommodation trough is disposed a guiding assembly. The guiding assembly cooperates with the accommodation trough to define an oil storage space for accommodation of lubricating grease. The oil storage space is in communication with the oil hole. A power module is connected to the guiding assembly to drive the guiding assembly at regular intervals to make the lubricating grease overflow to the linear transmission system through the oil hole to perform the lubrication.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: November 6, 2012
    Assignee: Hiwin Technologies Corp.
    Inventors: Yan-Yu Chen, Zong-Sian Jiang, Chia-Min Liu
  • Patent number: 8270338
    Abstract: Implementation of opportunistic use of stations in a wireless network as repeaters is described. In one implementation, a station detects the existence of rate anomaly in a wireless network. In response to the rate anomaly, the station may transform into a software repeater for certain other neighboring stations. The repeater function allows for the relaying of packets sent by these neighboring stations to the access point and vice versa. The other neighboring stations, owing to their relative proximity to the repeater station, transmit data at a higher rate to the repeater station. Thus, the removal of the slower stations reduces clogging of the access point and increases the overall data rate within the wireless network. Further, a zero-overhead network coding protocol may be implemented in conjunction with the repeater function to increase capacity of the wireless network.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: September 18, 2012
    Assignee: Microsoft Corporation
    Inventors: Ranveer Chandra, Paramvir Bahl, Jitendra D. Padhye, Yan Yu
  • Patent number: 8267585
    Abstract: A motion transmission apparatus with a chain, wherein the chain comprises a plurality of spacers and links for connecting the spacers together, each of the spacers is provided at both sides thereof in an axial direction of an elongated shaft with a plurality of holding protrusions and inclined at an angle from a center of each of the spacers toward a peripheral edge thereof in such a manner that a distance between outer ends of two opposite holding surfaces on two neighboring spacers is smaller than a diameter of the rolling elements, the holding protrusions of the chain are annularly arranged in 120 degree intervals in such a manner that the holding protrusions on the same side of each spacer are alternatively arranged in a direction which is vertical to the links, and two of the holding protrusions are arranged in a line parallel to a direction of the links.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: September 18, 2012
    Assignee: Hiwin Technologies Corp.
    Inventors: Yung-Tsai Chuo, Ming-Yao Lin, Chiung-Yao Wang, Yan-Yu Chen, Po-Chuan Hsu
  • Patent number: 8253165
    Abstract: A semiconductor device includes a first well region of a first conductivity, a second well region of a second conductivity type, a source region of the second conductivity type within the first well region, and a drain region of the second conductivity type at least partially within the second well region. A well contact to the first well region is coupled to the source. A third doped region of the first conductivity type and a fourth doped region of the second conductivity type are located in the second well region. A first transistor includes the third doped region, the second well region, and the first well region. The first transistor is coupled to a switch device. A second transistor includes the second well region, the first well region, and the source region. The first and the second transistors are configured to provide a current path during an ESD event.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: August 28, 2012
    Assignee: Macronix International Co., Ltd.
    Inventors: Shih-Yu Wang, Chia-Ling Lu, Yan-Yu Chen, Yu-Lien Liu, Tao-Cheng Lu
  • Patent number: 8255393
    Abstract: A computer-implemented method and system of building a user reputation database for use in a user location data system. The method and system receive user location information containing personally identifiable data of a user and user position data. The user position data may or may not represent one or more actual geographic positions of the user. The user location information is temporarily stored and analyzed to provide a spam score associated with the user position data indicative of whether the user position data represents the actual geographic positions of the user. Data indicative of the spam score is also provided to user reputation database to store a user reputation score associated with the user.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: August 28, 2012
    Assignee: Google Inc.
    Inventors: Yan Yu, Sam Liang, Michael Chu, Yuhua Luo, Zhengrong Ji
  • Patent number: 8250816
    Abstract: A method for installing rig structure (e.g. cabin, house, a doghouse) on a drilling rig, the method including: connecting support apparatus to a substructure of a drilling rig, supporting a drilling floor; moving a movement apparatus supporting a rig structure to position it adjacent the support apparatus, by moving movement apparatus on ground adjacent the substructure, moving the support apparatus into a connecting orientation with respect to the structure; connecting raising apparatus to the structure, the raising apparatus connected to the support apparatus; raising the structure up to the drill floor with the raising apparatus; and securing the structure to the support apparatus. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: August 28, 2012
    Assignee: National Oilwell Varco L.P.
    Inventors: Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liui, Hui Chun Sheng, Yan Yu, He Hui Chen
  • Publication number: 20120192668
    Abstract: A deflector for use in a ball screw is composed of a main body and a junction member connected with the main body to form a channel having a first guide groove and two second guide grooves formed at two opposite sides of the first guide groove. Each of the second guide grooves has two walls extending outward from the first guide groove. Each two of the walls have a conjunction formed therebetween. The vertical section of the channel can define an extending axis passing through centers of the two conjunctions. At least one of the walls of each second guide groove is not parallel to the extending axis. In light of the above features, the roller chain can avoid wear and tear to prolong its service life thereof. Besides, the mold for forming the deflector can be designed to be structurally subject to mold release, such that the production efficiency can be increased.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 2, 2012
    Inventors: Po-Chuan Hsu, Yan-Yu Chen
  • Patent number: 8222801
    Abstract: A lamp includes a lamp holder module and light-emitting module disposed in the lamp holder module. The lamp holder module includes a body, a pressing mechanism disposed on the body, and an upper cover engaging removably the body. The light-emitting module is placed on the body and is pressed into position through the pressing mechanism. The pressing mechanism is operable to release the light-emitting module, thereby facilitating removal and installation of the light-emitting module. The upper cover serves as a lens of the light-emitting module and covers the light-emitting module.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: July 17, 2012
    Assignees: Silitek Electronic (Guangzhou) Co., Ltd., Lite-On Technology Corp.
    Inventors: Yan-Yu Wang, Chen-Yu Chen, Chih-Lung Liang, Shun-Chung Cheng
  • Publication number: 20120151382
    Abstract: Some implementations provide a user interface for generating an electronic document. An external component may be launched within the user interface for accessing external data, and context data of the current document may be provided to the external component. The external data that corresponds to the context data for the document may be displayed within the user interface, such as for enabling a user to interact with the data and/or include a portion of the data in the document.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 14, 2012
    Applicant: Microsoft Corporation
    Inventors: Kuo Zhang, Yushun Wang, Michael T. Gillam, Xiaopei Zhang, Yan Yu
  • Publication number: 20120137808
    Abstract: A motion guide device includes a ball nut attached onto a shaft and having helical grooves for forming a ball guiding raceway between the ball nut and the elongated shaft and for receiving ball bearing elements, a circulating device attached to the ball nut and having a pathway communicative with the raceway for forming an endless ball guiding passage between the ball nut and the elongated shaft and the circulating device and for engaging with bearing elements, and a retaining device includes a shorter chain for engaging into the helical grooves or raceway of the screw shaft and the ball nut, and a longer chain for engaging into the pathway of the circulating device.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 7, 2012
    Inventors: Yan-Yu Chen, Wuteng Hsieh
  • Publication number: 20120126615
    Abstract: A production line includes a carrier board having a power socket that has a plurality of power lines and a plurality of conductive elements connected to the power lines, respectively; a track having a track body and a pair of track sidewalls; a plurality of electricity-collecting tracks provided on the track body for supplying different power signals; and a plurality of guarding units, each of which has a supporting frame perpendicularly provided on the track body and a covering sheet connected to the supporting frame for covering the electricity-collecting tracks, a plurality of crevices formed between each of the covering sheets; wherein each of the conductive elements has a contact end penetrating and extending into each of the crevices and flexibly contacting each of the corresponding electricity-collecting tracks so as to receive the different power signals and transmit the different power signals to the power lines of the power socket.
    Type: Application
    Filed: December 6, 2010
    Publication date: May 24, 2012
    Applicant: Askey Computer Corporation
    Inventors: Run-Hua Hang, Yan-Yu Sun, Ching-Feng Hsieh
  • Publication number: 20120105600
    Abstract: A method for 3D imaging of a biologic object (1) in an optical tomography system where a subcellular structure of a biological object (1) is labeled by introducing at least one nanoparticle-biomarker. The labeled biological object (1) is moved relatively to a microscope objective (62) to present varying angles of view and the labeled biological object (1) is illuminated with radiation having wavelengths between 150 nm and 900 nm. Radiation transmitted through the labeled biological object (1) and the microscope objective (62) within at least one wavelength bands is sensed with a color camera, or with a set of at least four monochrome cameras. A plurality of cross-sectional images of the biological object (1) from the sensed radiation is formed and reconstructed to make a 3D image of the labeled biological object (1).
    Type: Application
    Filed: June 8, 2009
    Publication date: May 3, 2012
    Inventors: Michael G. Meyer, J. Richard Rahn, Anna V. Tourovskaia, Julia Oi Yan Yu, Christy A. Lancaster, Thomas Neumann, Mark E. Fauver