Patents by Inventor Yun-Hsiu Lee

Yun-Hsiu Lee 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: 11962239
    Abstract: A control circuit of a power converter and a control method thereof are provided. The control circuit includes an error amplifier, a controller, a digital filter, and a digital pulse width signal modulator. The error amplifying circuit is coupled to an output terminal of the power converter and provides a digital error signal. The controller provides a first working parameter corresponding to the first external control command when receiving a first external control command. The digital filter generates a current digital compensation value. The digital pulse width signal modulator generates a pulse width modulation signal. The controller provides a second working parameter corresponding to the second external control command when receiving a second external control command. The controller calculates a transition value according to the second working parameter and the current digital compensation value. The controller provides the second working parameter and the transition value to the digital filter.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: April 16, 2024
    Assignee: uPI Semiconductor Corp.
    Inventors: Yun-Kuo Lee, Wei-Hsiang Wang, Yen-Chih Lin, Wei-Hsiu Hung
  • Patent number: 11955168
    Abstract: A memory device is provided. The memory device includes a memory array of a plurality of memory elements, a plurality of word lines or word line pairs, a plurality of bit line pairs, and a plurality of common source lines. Each of the memory elements includes two memory cells. The memory device is configured for calculating an energy value based on a plurality of state signals and a plurality of coefficients, and the two memory cells of each of the memory elements are configured for performing an individual selection such that one of the two memory cells of each of the memory elements receives two corresponding state signals from a corresponding word line or a corresponding word line pair and a corresponding bit line pair and generates an output current into a corresponding common source line for calculating the energy value.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: April 9, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Yun-Yuan Wang, Ming-Hsiu Lee
  • Publication number: 20080272025
    Abstract: The present invention provides an improved structure of memory card storing case, which includes a base and an upper cover. A periphery of the base has a frame strip circum located thereon, and a recess is formed at a front end of the frame strip. Wavelike fastening portions are respectively formed on two sides of the recess, and a plurality of fixed protruding ribs are located within the base to enable holding at least one memory card or card adapter device. A periphery of the upper cover is provided with a frame portion, and a wavelike ear portion is located at a front end of the frame portion. The wavelike ear portion enables movable joining to the corresponding wavelike fastening portions on the two sides of the recess of the base. Accordingly, the present invention provides effectiveness of a structural configuration that enables a convenient storage and a shockproof protection.
    Type: Application
    Filed: May 4, 2007
    Publication date: November 6, 2008
    Inventor: Yun-Hsiu Lee
  • Publication number: 20080188133
    Abstract: The present invention provides a mini card adapter structure that includes an upper cover, a lower cover and a converter terminal set. An insertion slot is defined at a rear portion of the upper cover corresponding to the shape of a micro memory card. A port is designed in a central portion of the lower cover to accommodate a micro memory card. The converter terminal set is configured with eleven terminals, wherein an injection molded fixing mount fixedly covers each terminal, and eleven contact pins extend outward towards a short memory card opening. No. three pin and No. six pin of the eleven contact pins are configured with a large grounding area, and eight extended reverse bent contact pins extend outward toward the micro memory card port. Accordingly, the present invention is able to convert a micro memory card into a short memory card of relatively larger size.
    Type: Application
    Filed: February 2, 2007
    Publication date: August 7, 2008
    Inventor: Yun-Hsiu Lee
  • Patent number: 7371119
    Abstract: The present invention provides an improved card adapter structure which includes an upper cover, a lower cover and a converter terminal set. The upper cover is designed to conform to short memory card specifications, wherein an insertion slot is defined at the rear of the upper cover corresponding to the shape of a micro memory card. A port is configured in a central portion of the lower cover to accommodate a micro memory card. The converter terminal set is configured with eleven terminals, wherein an injection molded fixing mount fixedly covers each pin of the converter terminal set, and eleven pins extend outward towards a short memory card opening. Pin three and pin six are jointly configured with a large grounding area, and eight pins extend outward towards the micro memory card port. Accordingly, the adapter structure conveniently converts a micro memory card into a short memory card.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: May 13, 2008
    Inventor: Yun-Hsiu Lee
  • Patent number: 7326086
    Abstract: The present invention provides an improved card adapter structure that includes an upper cover, a lower cover, a converter terminal set and a positioning elastic strip set. The upper cover has a structure designed to conform to short memory card (MS) specifications, wherein an insertion slot is defined at the rear of the upper cover corresponding to the shape of a micro memory card (M2). The lower cover has a fixing portions and a positioning structure corresponding to those of the upper cover. Moreover, at least one terminal of the No. four, six, seven and eight terminals of the converter terminal set is configured with a gap that is joined to an electric resistance. The positioning elastic strip set is correspondingly located between both covers. Accordingly, the present invention is able to convert a micro memory card into a short memory card of relatively larger size.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: February 5, 2008
    Inventor: Yun-Hsiu Lee
  • Publication number: 20070218768
    Abstract: A transflash-to-SD adaptive card structure is composed of an upper housing, a lower housing, and an adaptive terminal module, to adapt a Transflash memory card into an SD memory card. The adaptive terminal module consists of a plurality of terminals and a moldbase for fixing positions of the terminals. The terminals are formed with 9 SD pins and 8 Transflash pins at a front end and a rear end of the moldbase, respectively. Above the SD pins of sixth and third terminals is installed with a bridge structure. Accordingly, after the adaptive terminal module is emplaced at a proper position between the upper and lower housings, the upper and lower housings are riveted and fixed by an ultrasonic wave, such that power ends of the bridge structure can be pressed down by the upper housing, thereby enabling the sixth terminal to be in contact with the third terminal for short-circuiting.
    Type: Application
    Filed: March 20, 2006
    Publication date: September 20, 2007
    Inventor: Yun-Hsiu Lee
  • Publication number: 20070171620
    Abstract: A structure of USB connector of mini portable flash memory drive comprises of a plastic body, a microchip PCB and a steel enclosure. Plug the plastic body where is installed a microchip PCB into the steel enclosure. The steel enclosure features an oblong sheath, a stamped connector on its top as well as convex points and concave ribs on its both flanks. Besides, the stamped connector has a L-typed shield at its opening. A plastic body has groove on its upper part for buckling it to buttons of the steel enclosure. A microchip PCB installed inside of the plastic body. While plugging the plastic body containing a microchip PCB into the steel enclosure for assembling, all related elements is tightly fixed at every position (up and down, rear and front, right and left). Dimensions of this assembly unit shall be in conformity with USB requirements.
    Type: Application
    Filed: January 20, 2006
    Publication date: July 26, 2007
    Inventor: Yun-Hsiu Lee
  • Publication number: 20070127213
    Abstract: The buckle includes a join region with two sidewalls. The ring body of the buckle is different thickness. The join region is formed in the thick ring body. When a hook of the heat sink is joined to this join region, the two sidewalls may limit the movement of the hook to fix the heat sink.
    Type: Application
    Filed: October 4, 2006
    Publication date: June 7, 2007
    Inventors: Yun-Hsiu Lee, Chun-San Lin, Yen-De Wu, Hung-Yuan Hung, Sun-Chen Yang
  • Patent number: 7226318
    Abstract: The present invention provides a card adapter structure including an upper cover, a lower cover, a set of converter terminals and a set of positioning flexible strips. The upper cover designed to conform to short memory card (MS) specifications, has an insertion slot defined at a rear end to fit the shape of a memory stick micro card (M2). Fixing portions are located on two sides of the insertion slot; moreover, a positioning structure is located on a bottom surface of the upper cover. The converter terminals are configured and covered fixedly with an injection molded fixed seating. The set of positioning flexible strips are correspondingly disposed between the fixing portions of both covers. Such a structural configuration enables converting a memory stick micro card into a short memory card to facilitate inserting into a digital product provided with a short memory card circuit port for use thereof.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: June 5, 2007
    Inventor: Yun-Hsiu Lee
  • Patent number: 7210967
    Abstract: A card adapter structure includes an upper cover, a lower cover and a set of converter terminals. The upper cover designed to conform to short memory card (Mini SD) specifications, has an insertion slot defined at the rear of upper cover corresponding to a micro memory card (Micro SD). A plurality of grooves are defined on a bottom surface of the upper cover. A port is configured in a central portion of the lower cover to accommodate a micro memory card (Micro SD). Moreover, protruding pieces corresponding to the grooves of the upper cover are located on the lower cover forming a solid structural configuration. The converter terminals are fixed by embedding molding means and extend outward to contact cards. The structural configuration enables converting a micro memory card into a short memory card to facilitate inserting into a digital product provided with a short memory card circuit port.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: May 1, 2007
    Inventor: Yun-Hsiu Lee
  • Patent number: 7189118
    Abstract: A Mini SD card adapter including an upper plastic shell, a lower plastic shell, a metallic shell, a terminal set and a write protect tab, whereby the Mini SD card adapter enables converting a relatively small sized Mini SD card into a larger sized SD card for use by a user, and is characterized in that the terminal set is fixed within corresponding terminal holes defined in the upper plastic shell using a direct insertion method. In addition, an appropriately positioned bend of a fourth terminal of the terminal set serves a grounded portion that provides for direct electrical grounding with the metallic shell. Accordingly, the upper plastic shell and lower plastic shell, the metallic shell and the write protect tab can be rapidly and conveniently assembled to form a finished product, thereby achieving objective of increasing yield of the finished product.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: March 13, 2007
    Inventor: Yun-Hsiu Lee
  • Patent number: 7172464
    Abstract: The present invention provides a card adapter that includes an upper cover, a lower cover and a set of converter terminals. The upper cover has an external form designed to conform to short memory card (MS DUO) specifications, and an insertion slot is defined at a rear end of the upper cover corresponding to the shape of a memory stick micro card (M2). The lower iron piece coated inner side with a layer of insulating coating, is inserted and joined to a rear portion of the lower cover. The converter terminals are singly fixed within a fixed seating by embedding molding means and extend outward to contact cards. Such a structural configuration enables converting a memory stick micro card of relatively small size into a short memory card of relatively larger size to facilitate inserting into a digital product provided with a short memory card circuit port.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: February 6, 2007
    Inventor: Yun-Hsiu Lee
  • Publication number: 20070011852
    Abstract: A CPU heat sink mount attachment structure including a retaining pin member, a spring member and an inner retaining pin, characterized in that the inner retaining pin is structured to comprise a main body and a reset button, and the inner retaining pin and the spring member are disposed within the retaining pin member. When the main body of the inner retaining pin is pressed downward, a retaining pin within the main body props pin-foot at a bottom portion of the retaining pin member. Furthermore, catch hooks within the main body mutually clasp with corresponding catch hooks of the retaining pin member, thereby achieving the object of securing the main body. Accordingly, the aforementioned structure can be used to quickly and expediently assemble and disassemble a heat sink mount.
    Type: Application
    Filed: July 15, 2005
    Publication date: January 18, 2007
    Inventor: Yun-Hsiu Lee
  • Publication number: 20070004285
    Abstract: A Mini SD card adapter including an upper plastic shell, a lower plastic shell, a metallic shell, a terminal set and a write protect tab, whereby the Mini SD card adapter enables converting a relatively small sized Mini SD card into a larger sized SD card for use by a user, and is characterized in that the terminal set is fixed within corresponding terminal holes defined in the upper plastic shell using a direct insertion method. In addition, an appropriately positioned bend of a fourth terminal of the terminal set serves a grounded portion that provides for direct electrical grounding with the metallic shell. Accordingly, the upper plastic shell and lower plastic shell, the metallic shell and the write protect tab can be rapidly and conveniently assembled to form a finished product, thereby achieving objective of increasing yield of the finished product.
    Type: Application
    Filed: February 24, 2006
    Publication date: January 4, 2007
    Inventor: Yun-Hsiu Lee
  • Publication number: 20060279931
    Abstract: A CPU heat sink mount attachment structure embodying a retaining pin member, a spring member and an inner retaining pin, and characterized in that: the inner retaining pin and the spring member are disposed within the retaining pin member, clip arms of the inner retaining pin respectively clip within clip holes of an outer side wall of the retaining pin member. When a retaining pin protruding from a center of the inner retaining pin is pressed downward, a pin-foot positioned at a bottom of the retaining pin member is caused to prop open. According to the aforementioned structure, the present invention not only achieves rapid and convenient assembly or disassembly of a heat sink mount, moreover, effectiveness of considerable securing strength after attaching to a motherboard is assured.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 14, 2006
    Inventor: Yun-Hsiu Lee
  • Patent number: 7025637
    Abstract: The present invention primarily comprises a terminal assembly frame and its associated terminal installed at an adequate position inside a casing. The casing consists of an upper and a lower casing, and a plurality of terminal holes are located at the central part of the terminal assembly frame, such that the terminal can directly pass through and be fixed into the terminal holes. Then the terminal assembly frame can be latched and fixed at an adequate position between the upper and lower casing. Accordingly, the conventional necessary engineering of welding a circuit board can be avoided, with the easiness of assembly and maintenance, thereby lowering the manufacturing cost, and improving signal transmission due to direct connection.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: April 11, 2006
    Inventor: Yun-Hsiu Lee