Patents Assigned to Cheng
  • Patent number: 9013111
    Abstract: The configurations of an electronic ballast are provided in the present invention. The proposed electronic ballast includes a filter circuit having a first and a second output terminals, a rectifier circuit having a first input terminal, a second input terminal coupled to the second output terminal of the filter circuit, and a first output terminal, and a continuous-conduction-mode charge pump PFC circuit including a first inductor having a first terminal coupled to the first input terminal and a second terminal coupled to the first output terminal of the filter circuit, a second inductor having a first terminal and a first capacitor having a first terminal coupled to the first terminal of the first inductor and a second terminal coupled to the first terminal of the second inductor.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: April 21, 2015
    Assignee: National Cheng Kung University
    Inventors: Ray-Lee Lin, Jung-Wei Chang
  • Patent number: 9013354
    Abstract: A multi-band antenna includes a substrate and a conductive layer. The conductive layer covered on a top surface of the substrate includes a ground element, a first radiating element and a second radiating element. The ground element is connected with a bottom side edge of the substrate. The first radiating element is connected with one end of a lower top edge of the ground element. The first radiating element includes a connection portion, a first coupling portion, a first radiating portion and a first inductance portion. The second radiating element is connected with the other end of the lower top edge of the ground element. The second radiating element includes a second inductance portion, a second coupling portion, a second radiating portion and a third radiating portion.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: April 21, 2015
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Yi-Feng Huang, Jia-Hung Su, Kai Shih
  • Publication number: 20150103157
    Abstract: A color degradation compensation method is provided. The color degradation compensation method includes the steps as follows. Two images are captured by an image capturing device, wherein the two images have an overlapped area. A calculating procedure is constructed. At least one position in the overlapped area is selected and color values of a plurality of points in the position on each of the two images are read, wherein the points of each image are corresponded to the same position in the overlapped area. A ratio of the two color values is calculated. A degradation standard deviation of the two color values is calculated by the calculating procedure. The color values of the two images are calibrated to compensated color values through the calculating procedure in accordance with the degradation standard deviation.
    Type: Application
    Filed: December 22, 2013
    Publication date: April 16, 2015
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventor: Wei-Yen HSU
  • Publication number: 20150105778
    Abstract: A bone fixation plate for fixing a fracture part of a bone is disclosed and can stably fix on a surface of a bone. The bone fixation plate has a protruding curved face, an indentation curved face and two rows of through holes. The protruding curved face has a blank portion and two binding portions. A suture is retained in the through holes formed close to two end edges of the binding portions, so that the stability of the bone fixation plate is improved.
    Type: Application
    Filed: December 15, 2013
    Publication date: April 16, 2015
    Applicant: National Cheng Kung University
    Inventors: Haw-yen CHIU, Wei-jr Lin, Ting-mao Chou, Fong-chin Su
  • Patent number: 9003667
    Abstract: A pair of garden scissors with an adjustable cutting angle is provided with first and second scissor members. A positioning protrusion of the first scissor member cooperates with a positioning end of the angle-restricting member of the second scissor member to restrict the maximum cutting angle of the first scissor member, and an adjust member is able to adjust the cutting angle by adjusting the position of the angle-restricting member, so that the cutting angle can be freely adjusted within the movement range of the angle-restricting member.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: April 14, 2015
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Publication number: 20150096396
    Abstract: A ball screw is formed of a screw rod, two screw nuts, a link, a plurality of balls, and at least two parallelism sensors. The screw nuts are sleeved onto the screw rod and are connected with each other via a link to define a spiral path therebetween. The spiral path is linked with an internal circulatory passage of each screw nut for receiving a plurality of balls. The two parallelism sensors are oppositely mounted between the two screw nuts and surround the screw rod for sensing the preload between the two screw nuts to figure out whether the parallelism of the screw rod after the assembly is deviated or not. In this way, monitoring the voltage value outputted from the parallelism sensors can monitor the parallelism of the screw rod in real time after the assembly.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Applicant: National Chung Cheng University
    Inventors: Yeau-Ren JENG, Yu-Xian HUANG
  • Publication number: 20150096397
    Abstract: A ball screw capable of sensing a torque in real time includes a screw rod, a screw nut sleeved onto the screw rod, a plurality of balls mounted between the screw rod and the screw nut, and a torque sensor haying a first fastening portion and a second fastening portion. The first fastening portion is fixed to a working bench and the second fastening portion is fixed to the screw nut, so the torque sensor can sense how much the torque is while the screw out is driving a working bench to move. In light of this structure, monitoring the voltage value outputted by the torque sensor can sense the torque generated while the working screw rod is working.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Applicant: National Chung Cheng University
    Inventors: Yeau-Ren JENG, Yu-Xian HUANG
  • Patent number: 8994067
    Abstract: The present invention relates to a technique of semiconductor devices, and provides a semiconductor device, which uses two controllable current sources to control the electron current and the hole current of the voltage-sustaining region of a thyristor under conduction state, making the sum of the two currents from anode to cathode close to a saturated value under high voltage, thus avoiding the current crowding effect in local region and increasing the reliability of the device. Besides, it further provides a method of implementing the two current sources in the device and a method to improve the switching speed.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: March 31, 2015
    Assignee: Cheng Dian Intelligent-Power Microelectronics Design Co., Ltd of Chengdu
    Inventor: Xingbi Chen
  • Publication number: 20150085293
    Abstract: A portable optical tomography design for performing elastographic deformation mapping of tissues comprises a coherence light source providing one light beam; a scanning microscope comprising a waveguide having two terminals, a coupler disposed on one terminal, an actuating member connected to the waveguide or the coupler, a first optical reflection member, a beam splitter, and a Fourier-domain spectrometer. The waveguide is actuated by the actuator to traverse a horizontal and vertical motion to prescribe a two-dimensional plane for scanning the tissue sample. Optical fiber is used to connect above elements therebetween. The Fourier-domain spectrometer is coupled with the beam splitter and comprises a second reflection member and an interferogram capturing member. An interferogram produced from the Fourier-domain spectrometer is carried over to a digital signal processor and subsequently an optical coherence tomography image device to generate a three-dimensional image for the scanned tissue.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 26, 2015
    Applicant: National Cheng Kung University
    Inventors: Wei-Chih WANG, Chih-Han CHANG, Fong-Chin SU
  • Patent number: 8987936
    Abstract: An apparatus and a method for peak shifting adjustment are disclosed. The apparatus includes a controlling unit that is configured to sequentially control different outputting units to output the Pulse-Width Modulation (PWM) signals according to a preset time sequence. The interval between two adjacent outputted PWM signals is T1, which is the time when the current required by an electric device is higher than the normal current in case of an increase of the duty cycle of the PWM signals. At least two outputting units are connected to corresponding electric devices and configured to output the PWM signals to the corresponding electric devices according to the control of the controlling unit.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: March 24, 2015
    Assignee: Huawei Digital Technologies (Cheng Du) Co. Limited
    Inventors: Yumin Du, Hongdong Zhang
  • Patent number: 8988239
    Abstract: A failure alarm system adapted for monitoring an instrument includes a BUS transmitting data and control logics inside the failure alarm system, a recording device connected to the BUS for recording operating sounds of the instrument, a voice processing unit connected to the BUS for converting the operating sounds into a voice eigenvector, a storage unit connected to the BUS for storing the voice eigenvector at the normal working state of the instrument as historical data and also storing the voice eigenvector at the abnormal working state of the instrument therein, a comparing unit connected to the BUS for comparing the new voice eigenvector with the previous voice eigenvector saved as the historical data to judge whether the instrument is at the abnormal working state, and a warning unit connected to the BUS for warning the monitoring personnel when the abnormal state is detected.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: March 24, 2015
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Hsuan Chi Fang, Chien Yu Lu, Yi Hao Chiu, Cheng Kang Chou
  • Patent number: 8990922
    Abstract: An access control system includes a mobile device, a control device and an electronic lock module. The mobile device includes an input module, an identification module, a display module, a storage module, a battery module, a wireless transmission module and a central processor. The control device connects with the mobile device wirelessly and includes a wireless transceiver module, a power module, a memory module, an electronic control module and a microcontroller. The electronic control module of the control device is electrically connected with the electronic lock device. The identification module captures the biological characteristic of the user so as to make the identification module identify the biological characteristic of the user, so as to lower an identification burden of the access control system and ensure a usage security of the access control system.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: March 24, 2015
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Yi Hao Chiu, Chao Chun Wang, Cheng Kang Chou
  • Publication number: 20150078648
    Abstract: A cell image segmentation method includes receiving a cell image, performing a nuclei initialization step to find an internal marker and an external marker to obtain a potential nuclei and a potential cell boundary, calculating a gradient map of the received cell image, performing a filtering step on the gradient map to generate a filtered gradient map, performing a nuclei detection step to obtain a segmented nuclei, and performing a nuclei validation step to obtain a valid nuclei. The nuclei initialization step includes performing a blob detection step to obtain a nuclei candidate, an outlier removal step to obtain the internal marker, a distance transform step to obtain a distance map, and a cell boundary initialization step to obtain the external marker. In another embodiment, a nuclear-to-cytoplasmic ratio evaluation method using the above cell image segmentation method is proposed.
    Type: Application
    Filed: December 12, 2013
    Publication date: March 19, 2015
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Gwo Giun Lee, Huan-Hsiang Lin, Cheng-Shiun Tsai, Chun-Fu Chen
  • Patent number: 8983644
    Abstract: A manufacturing execution system (MES) with virtual-metrology capabilities and a manufacturing system including the MES are provided. The MES is built on a middleware architecture (such as an object request broker architecture), and includes an equipment manager, a virtual metrology system (VMS), a statistical process control (SPC) system, an alarm manager and a scheduler. The manufacturing system includes a first process tool, a second process tool, a metrology tool, the aforementioned MES, a first R2R (Run-to-Run) controller and a second R2R controller.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: March 17, 2015
    Assignee: National Cheng Kung University
    Inventors: Fan-Tien Cheng, Chi-An Kao, Hsien-Cheng Huang, Yung-Cheng Chang
  • Patent number: 8981752
    Abstract: An energy-based oriented switching mode power supply includes a bi-directional converter having an energy input and a load output, and an energy based pulsed generator connected between the energy input and the load output for outputting a gate voltage signal controlling how much energy is supplied from the energy input. The energy based pulsed generator receives a clock signal and outputs the gate voltage signal according to the load output of the bi-directional converter when the clock signal is at a high level. Accordingly, the switching mode power supply achieves a hybrid of PWM and PFM, depending on the energy demand of the load output, for a fast transient response and a small voltage ripple whilst improving power efficiency over a wide load range.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 17, 2015
    Assignee: National Chung Cheng University
    Inventors: Chung-Hsun Huang, Chao-Chun Chen
  • Patent number: 8974257
    Abstract: An electrical connector includes an insulating housing and a plurality of electrical terminals. A top face of the insulating housing is concaved downward to define a plurality of terminal grooves alternately arranged into two rows along two longitudinal sides of the insulating housing. Each terminal groove extends transversely to have the outer end thereof penetrate through a corresponding side face of the insulating housing. The inner ends of the two rows of terminal grooves are alternate with one another along a substantial longitudinal middle of the insulating housing. The electrical terminals are firstly assembled downward and then pushed transversely inward to be assembled in the terminal grooves respectively.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: March 10, 2015
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Bao-Geng Xie, Wei-Hong Liao, Yin-Lung Wu
  • Patent number: 8974252
    Abstract: An electrical connector includes an insulating housing, a plurality of first terminals each having a first elastic portion, a plurality of second terminals each having a second elastic portion, and a shielding shell enclosing the insulating housing. The insulating housing has a top wall, a bottom wall, a rear wall and two side walls which together surround an inserting chamber thereamong. The top wall and the bottom wall respectively define a plurality of first terminal grooves and second terminal grooves which are opened symmetrically about the inserting chamber and communicate with the inserting chamber. The first and second terminals are respectively inserted frontward in the first and second terminal grooves with the first elastic portions and the second elastic portions face-to-face projecting into the inserting chamber and being symmetrical in structure and arrangement about the inserting chamber.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: March 10, 2015
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventor: Chih Lin Yang
  • Patent number: 8976113
    Abstract: A mouse housing structure includes a housing having a main body of a front wall, and a tongue portion defining a position wall, at least a track device disposed at the tongue portion and defining first and second position ends at two opposite ends thereof, and a sliding device including a sliding body and at least a rotatable shaft having first and second engaging portions. The first engaging portion is movably and rotatably disposed in the track device, and the second engaging portion is spaced away from the track device for pivotally engaging with a coupling slot of the sliding body. When the sliding body moves forwards to where the first engaging portion slides against the first position end, the sliding body rotates towards the position wall, and is restrained by the position wall so as to expand the mouse housing structure for use.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: March 10, 2015
    Assignee: Cheng UEI Precision Industry Co., Ltd.
    Inventor: Tsung-Shih Lee
  • Patent number: 8974248
    Abstract: A universal serial bus connector includes an insulating housing, a plurality of first terminals, a plurality of second terminals, an insulating cover, a terminal module and a shielding shell surrounding the insulating housing, the insulating cover and the terminal module. The insulating housing includes a first base body which defines a first holding groove and a second base body which defines a second holding groove. The first terminals and the second terminals are disposed to the first base body. The insulating cover has a main body received in the first holding groove. The terminal module includes an insulating base and a plurality of third terminals integrally molded to the insulating base. The insulating base has a tongue portion received in the second holding groove, and a second supporting portion. A rear surface of the second supporting portion is flush with a rear surface of the first base body.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: March 10, 2015
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Rong-Qin Lan, Ping-Chih Chen, Yin-Lung Wu
  • Patent number: D725046
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: March 24, 2015
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventor: Da-Yong Kuo