Patents by Inventor Jan Wu

Jan Wu 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).

  • Publication number: 20130063945
    Abstract: A bulb-type LED lamp having a replaceable light source module includes a lamp head module, a lamp casing module and a light source module. The lamp head module has an electrical-conductive connection portion. One end of the lamp casing module is connected to the lamp head module. The light source module comprises a substrate, a plurality of LEDs electrically connected to the substrate, and a sleeve disposed in the lamp casing module to be electrically connected to the substrate. The sleeve has an electrical-conductive insertion portion assembled with the electrical-conductive connection portion. By this structure, a damaged light source module can be replaced rapidly. A user needs not to by a new whole set lamp so as to save the cost maintenance. Further, a surface thermal contact is generated between the metallic pressing plate and the heat-conducting plate to increase the heat-conducting area and efficiency.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Inventors: Huei-Jan WU, Zu-Chao Hsu
  • Patent number: 8358808
    Abstract: Systems and methods for detecting and tracking objects, such as motor vehicles, within video data. The systems and method analyze video data, for example, to count objects, determine object speeds, and track the path of objects without relying on the detection and identification of background data within the captured video data. The detection system uses one or more scan lines to generate a spatio-temporal map. A spatio-temporal map is a time progression of a slice of video data representing a history of pixel data corresponding to a scan line. The detection system detects objects in the video data based on intersections of lines within the spatio-temporal map. Once the detection system has detected an object, the detection system may record the detection for counting purposes, display an indication of the object in association with the video data, determine the speed of the object, etc.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: January 22, 2013
    Assignee: University of Washington
    Inventors: Yegor Malinovskiy, Yinhai Wang, Yao-Jan Wu
  • Publication number: 20110181126
    Abstract: The present invention provides a system and device for current measuring, controlling, and heat sinking which includes a positive electrode terminal carrier, a positive electrode output terminal carrier, a negative electrode terminal carrier, and a current control circuit carrier. The system and device is to be installed on a battery with high current capacity. In which the output current flowing through the battery's positive electrode is measured by the current measurement device which is installed in the positive electrode terminal carrier. A reverse current control switch and a forward current control switch are installed in the current control circuit carrier to control the current flowing path and the current flowing in the path. Furthermore the heat generated by the circuit is radiated by the current control circuit carrier.
    Type: Application
    Filed: January 27, 2010
    Publication date: July 28, 2011
    Inventors: Jenn-Yang Tien, Jan-Wu Hong
  • Publication number: 20110170744
    Abstract: Systems and methods for detecting and tracking objects, such as motor vehicles, within video data. The systems and method analyze video data, for example, to count objects, determine object speeds, and track the path of objects without relying on the detection and identification of background data within the captured video data. The detection system uses one or more scan lines to generate a spatio-temporal map. A spatio-temporal map is a time progression of a slice of video data representing a history of pixel data corresponding to a scan line. The detection system detects objects in the video data based on intersections of lines within the spatio-temporal map. Once the detection system has detected an object, the detection system may record the detection for counting purposes, display an indication of the object in association with the video data, determine the speed of the object, etc.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Applicant: UNIVERSITY OF WASHINGTON
    Inventors: Yegor Malinovskiy, Yinhai Wang, Yao-Jan Wu
  • Patent number: 7683576
    Abstract: A smart lead-acid battery charging/discharging management system comprised of one or a plurality of identical smart battery unit with each including a controller, a lead-acid battery, and a sensor switch device working together with a alternator and a voltage regulator to upgrade charging efficiency, achieve consistent capacity among batteries, and isolate malfunctioning or failing battery to extend service life of the battery.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: March 23, 2010
    Inventors: Jenn-Yang Tien, Jan-Wu Hong
  • Publication number: 20090183758
    Abstract: A selferecting structure includes a frame formed by one or two flexible continuous contours of rod or tube material possessing round cross section, each contour having two figure eight loops longitudinally formed as a double figure eight type continuous contour, and sheet material extending over the frame and attached to the rod or tube material. Two flexible continuous contours will be connected together side by side, parallel to each other through four binding tube sleeves to form one foldable structure. Three fixing tube sleeves respectively placed at a crossing of rod or tube of each flexible continuous contour, where the length and the inner size of the fixing tube sleeve define the level of friction of the frame rod or tube material inside the sleeve when unfolding the structure, thus defining a safety rate of the selferecting speed.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 23, 2009
    Inventors: Vasko Mitkov Gospodinov, Jan-In Wu
  • Publication number: 20090102424
    Abstract: The high reliable smart parallel energy storage tank charge/discharge system is composed of one or multiple identical Smart Energy Storage Unit. And each Smart Energy Storage Unit comprises an Energy Storage Management Module, an Energy Storage Device, a Sensor Switch Device and a Smart Identifier and Transmission Interface. All the historical records and real time information for charge/discharge condition of Smart Energy Storage Unit can upload to external connected equipment via the External Equipment Interface. To operate in coordination with an External Energy (Electric Power) Source, under any one Smart Energy Storage Unit served as the controller, this management system can carry out an effective charge/discharge management.
    Type: Application
    Filed: November 8, 2007
    Publication date: April 23, 2009
    Inventors: Jenn-Yang Tien, Jan-Wu Hong
  • Publication number: 20090066291
    Abstract: A Distributed Energy Storage Control System (DESCS) comprised of one or a plurality of identical BMS (Battery Management System) battery unit (40), series-parallel system controller (60) and DESCS main controller (70). Each BMS battery unit (40) including a smart battery unit (10), a discharge bypass path control switch (43), a super capacitor (45), a charge bypass load (46) and charge bypass path control switch (44). This DESCS system substantially promotes the energy efficiency of battery, provides a large scale and complicated energy storage system with on-line repair or replacement of batteries, proceeds charge/discharge task uninterrupted during maintenance, and possesses high maintainability.
    Type: Application
    Filed: October 22, 2007
    Publication date: March 12, 2009
    Inventors: Jenn-Yang TIEN, Jan-Wu Hong, Sheng-Cherng Wang
  • Publication number: 20080272736
    Abstract: A smart lead-acid battery (dis)charging management system comprised of one or a plurality of identical smart battery unit with each including a controller, a lead-acid battery, and a sensor switch device working together with a alternator and a voltage regulator to upgrade charging efficiency, achieve consistent capacity among batteries, and isolate malfunctioning or failing battery to extend service life of the battery.
    Type: Application
    Filed: May 1, 2007
    Publication date: November 6, 2008
    Inventors: Jenn-Yang Tien, Jan-Wu Hong
  • Publication number: 20070144571
    Abstract: A structure includes a frame formed of one, two, three or more resilient endless forms of rod material in the shape of figure eight or connected on their longitudinal axis one after another such figures of eight or part of it, connected directly together or additionally connected firmly enough together or with other contours to form one rigid structure, covered with sheet material, extending over loops and sewed to the rod material. The places of the crossings of the rod material are accumulating the energy, when folded, which is needed for the unfolding of the structure. In the places of the crossings of the rod material are placed bushes, having the role to define the rate of the unfolding speed.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 28, 2007
    Inventors: Jan-In Wu, Vasko Gospodinov
  • Publication number: 20050265194
    Abstract: The present invention provides a device and method of polynomial power control for optical drives, which is capable of controlling the laser power discharged from the optical pickup head basing on a quadratic curve fitted on a profile of constant liner velocity values and laser powers of optical pickup head. In addition, the present invention can prevent the burning failure caused by the track width of DVD disc is narrower than that of VCD disc.
    Type: Application
    Filed: November 17, 2004
    Publication date: December 1, 2005
    Inventor: Jan Wu
  • Publication number: 20050254373
    Abstract: A method and apparatus for controlling data write-in speed in synchronization with the rotation speed of spindle in an optical drive, c characterized in that a wobble signal generated while reading a blank optical disc is used for dynamically adjusting an ATIP signal (Absolute Time In Pregroove) of the optical disc generated while an optical pick-up head is writing data to the disc, referring as ATIP Sync signal hereinafter, so as to enable the ATIP Sync signal in synchronization with a Subcode Sync signal.
    Type: Application
    Filed: December 1, 2004
    Publication date: November 17, 2005
    Inventors: Jan Wu, Wei Wu
  • Publication number: 20050078687
    Abstract: An adaptive level-cutting method of a radio frequency ripple signal for a CD-ROM drive is proposed. A digital signal processor is added to accomplish adaptive cutting of the central level of the radio frequency ripple signal for generating an accurate radio frequency zero cross signal, thereby accomplishing tracking control, short seeking control and long seeking control of an optical disc when regions with data and regions without data of the optical disc are staggered.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 14, 2005
    Inventor: Jan Wu
  • Publication number: 20050067149
    Abstract: An improved heat-radiating fin set formed by combining a heat pipe and several heat-radiating fins can assemble several fins for heat radiation of an electronic component. The improved heat-radiating fin set can be quickly mass-produced in an automatic way to lower the manufacturing and assembly cost without using any solder material for binding. The improved heat-radiating fin set comprises a heat pipe and several fins. A sleeve hole is disposed in each fin. A flange is formed at the edge of each of the sleeve holes. The fins are tightly sleeved with the heat pipe through the sleeve holes with the flanges of the sleeve holes of the fins touching the outer wall of the heat pipe.
    Type: Application
    Filed: September 29, 2004
    Publication date: March 31, 2005
    Inventor: Huei-Jan Wu