Patents by Inventor EN LIU
EN LIU 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).
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Patent number: 9190990Abstract: The present disclosure provides a high-voltage level conversion circuit at least comprising a first NMOS transistor, a first PMOS transistor, a second NMOS transistor, a second PMOS transistor, a third PMOS transistor, a third NMOS transistor, a fourth PMOS transistor and a fourth NMOS transistor for receiving an input signal have a first voltage level and a second voltage level and converting the input signal to an output signal having a third voltage level and a fourth voltage level. Compared to conventional high-voltage level conversion circuits the provided high-voltage level conversion circuit occupies less circuit area.Type: GrantFiled: August 21, 2014Date of Patent: November 17, 2015Assignee: ILI TECHNOLOGY CORP.Inventors: Hsi-En Liu, Sung-Yau Yeh
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Publication number: 20150278427Abstract: A method of designing a circuit includes receiving a circuit design, and determining a temperature change of at least on back end of line (BEOL) element of the circuit design. The method further includes identifying at least one isothermal region within the circuit design; and determining, using a processor, a temperature increase of at least one front end of line (FEOL) device within the at least one isothermal region. The method further includes combining the temperature change of the at least one BEOL element with the temperature change of the at least one FEOL device, and comparing the combined temperature change with a threshold value.Type: ApplicationFiled: March 31, 2014Publication date: October 1, 2015Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Shyh-Horng YANG, Chung-Kai LIN, Chung-Hsing WANG, Kuo-Nan YANG, Shou-En LIU, Jhong-Sheng WANG, Tan-Li CHOU
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Publication number: 20150098122Abstract: An electro-optical apparatus including a first substrate, a second substrate disposed opposite to the first substrate, a display medium layer disposed between the first substrate and the second substrate, a first electrode disposed between the first substrate and the display medium layer, a second electrode disposed between the first substrate and the display medium layer and separated from the first electrode and a third electrode disposed between the display medium layer and the second substrate is provided. The display medium layer includes electrophoretic fluid and charged particles mixed into the electrophoretic fluid. Moreover, driving methods used to drive the electro-optical apparatus and another electro-optical apparatus are also provided.Type: ApplicationFiled: February 20, 2014Publication date: April 9, 2015Applicant: SiPix Technology Inc.Inventors: Nien-En Liu, Kuo-Lung Fang, Yao-Jen Hsieh
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Patent number: 8854305Abstract: A transformable cursor controlling apparatus includes a pair of housings which are a first housing and a second housing. The first housing has a first joint surface, and two sockets received therein and exploded outside the first joint surface. The second housing has a second joint surface corresponding to the first joint surface of the first housing. The second housing has an electrical connector protruded from the second joint surface and selectively inserted into one of the two sockets. A cursor controlling module is disposed in one of the pair of housings for controlling a cursor of computer. When the second housing is rotated 180 degrees related to the first housing along an axil line on the first joint surface of the first housing, the electrical connector can be inserted in the other socket.Type: GrantFiled: August 13, 2012Date of Patent: October 7, 2014Assignees: Lite-On Electronics (Guangzhou) Limited, Lite-On Technology CorporationInventor: En Liu
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Publication number: 20140293643Abstract: An candle-like lighting device includes a light body having a diffuser, a light guider and a light source; the diffuser having a plurality of diffusing particles mounted therein; the light guider having a reflecting portion defined at one end thereof and having a refracting portion defined at another end thereof, the diffuser sleeving the light guider; and the light source assembled to the light guider. Wherein, partial light beams from the light source are reflected by the reflecting portion toward the refracting portion and are refracted by the refracting portion into the diffuser; simultaneously, rest light beams form the light source are directly transmitted toward the refracting portion and are refracted by the refracting portion into the diffuser; as a result, the refracted light beams are diffused by the diffusing particles in the diffuser.Type: ApplicationFiled: April 2, 2013Publication date: October 2, 2014Applicant: NATIONAL CENTRAL UNIVERSITYInventors: CHING-CHERNG SUN, YI-CHIEN LO, HUI-EN LIU, KUAN-HUNG LEE
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Patent number: 8827523Abstract: An candle-like lighting device includes a light body having a diffuser, a light guider and a light source; the diffuser having a plurality of diffusing particles mounted therein; the light guider having a reflecting portion defined at one end thereof and having a refracting portion defined at another end thereof, the diffuser sleeving the light guider; and the light source assembled to the light guider. Wherein, partial light beams from the light source are reflected by the reflecting portion toward the refracting portion and are refracted by the refracting portion into the diffuser; simultaneously, rest light beams form the light source are directly transmitted toward the refracting portion and are refracted by the refracting portion into the diffuser; as a result, the refracted light beams are diffused by the diffusing particles in the diffuser.Type: GrantFiled: April 2, 2013Date of Patent: September 9, 2014Assignee: National Central UniversityInventors: Ching-Cherng Sun, Yi-Chien Lo, Hui-En Liu, Kuan-Hung Lee
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Patent number: 8824615Abstract: A frequency tracking circuit is disclosed. The frequency tracking circuit includes an edge selector, a phase-frequency processor and a digital controlled oscillator. The edge selector receives a data signal and feedback clock signal and sequentially outputs a data edge signal and a feedback-clock-edge signal. The phase-frequency processor receives the data edge signal and the feedback-clock-edge signal and outputs a frequency adjusting digital signal after executing differential operation according to a first phase difference and a second phase difference. The digital controlled oscillator receives the frequency adjusting digital signal so as to adjust frequency of the feedback clock signal. The phase-frequency processor outputs a frequency tracking signal to the edge selector, wherein the edge selector utilizes the frequency tracking signal for acquiring the data edge signal and utilizes the data edge signal for acquiring the feedback-clock-edge signal.Type: GrantFiled: March 14, 2013Date of Patent: September 2, 2014Assignee: National Taiwan UniversityInventors: Tsung-Hsien Lin, Cheng-En Liu, Chen-Chien Lin, Wei-Hao Chiu, Sung-Lin Tsai
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Patent number: 8820502Abstract: A one-way pulley for an alternator assembly includes an outer wheel, a clutch assembly, and a spindle. The outer wheel includes an axial hole extending longitudinally therethrough, whereby the axial hole forms an inner surface of the outer wheel. The clutch assembly is disposed within the axial hole of the outer wheel and includes a housing with an outer surface for contacting the inner surface of the outer wheel, and a plurality of rolling elements operable to extend into a pivot hole. The spindle is disposed within the pivot hole of the clutch assembly, the spindle having an outer surface for contacting the plurality of rolling elements and a coupling portion for connecting to a rotor shaft. The outer surface of the clutch assembly housing is fixedly attached to the inner surface of the outer wheel.Type: GrantFiled: September 3, 2010Date of Patent: September 2, 2014Assignee: Victory Industrial CorporationInventors: Hung-Chih Chang, Siu-En Liu
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Publication number: 20140152356Abstract: A frequency tracking circuit is disclosed. The frequency tracking circuit includes an edge selector, a phase-frequency processor and a digital controlled oscillator. The edge selector receives a data signal and feedback clock signal and sequentially outputs a data edge signal and a feedback-clock-edge signal. The phase-frequency processor receives the data edge signal and the feedback-clock-edge signal and outputs a frequency adjusting digital signal after executing differential operation according to a first phase difference and a second phase difference. The digital controlled oscillator receives the frequency adjusting digital signal so as to adjust frequency of the feedback clock signal. The phase-frequency processor outputs a frequency tracking signal to the edge selector, wherein the edge selector utilizes the frequency tracking signal for acquiring the data edge signal and utilizes the data edge signal for acquiring the feedback-clock-edge signal.Type: ApplicationFiled: March 14, 2013Publication date: June 5, 2014Applicant: NATIONAL TAIWAN UNIVERSITYInventors: TSUNG-HSIEN LIN, CHENG-EN LIU, CHEN-CHIEN LIN, WEI-HAO CHIU, SUNG-LIN TSAI
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Publication number: 20140089842Abstract: The present disclosure relates to an interface display method, the method comprising: generating a first screen interface and a second screen interface, wherein the first screen interface displays a functional interface associated with an application, and the second screen interface displays a navigation interface comprising functional modules associated with the application; displaying the first screen interface; displaying the second screen interface when the second screen interface is triggered; and displaying an interface associated with a functional module in the first screen interface when the functional module is selected from the second screen interface. This interface display method accomplishes convenient switching between functional modules without occupying screen display space. The present disclosure also provides an interface display device.Type: ApplicationFiled: November 26, 2013Publication date: March 27, 2014Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Ru Lan LIN, Can Cai YUAN, Sen Sheng XU, Hai Feng DING, Zi Hao CEN, Jia En LIU
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Patent number: 8629760Abstract: A signal conversion device, a radio frequency identification (RFID) tag, and a method for operating the RFID tag. The RFID tag has an electrically erasable programmable read-only memory module for storing RFID tag information and transmitting the RFID tag information; an information comparison module coupled to the electrically erasable programmable for receiving the RFID tag information and demodulation information, comparing the RFID tag information with the demodulation information, and generating a driving signal; and a pulse oscillation module coupled to the information comparison module for receiving the driving signal, and transmitting pulse oscillating signals to the electrically erasable programmable read-only memory module, so as to allow the electrically erasable programmable read-only memory module to transmit the RFID tag information.Type: GrantFiled: December 30, 2008Date of Patent: January 14, 2014Assignee: National Taiwan UniversityInventors: Chi-En Liu, Jean-Fu Kiang
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Publication number: 20130154932Abstract: A transformable cursor controlling apparatus includes a pair of housings which are a first housing and a second housing. The first housing has a first joint surface, and two sockets received therein and exploded outside the first joint surface. The second housing has a second joint surface corresponding to the first joint surface of the first housing. The second housing has an electrical connector protruded from the second joint surface and selectively inserted into one of the two sockets. A cursor controlling module is disposed in one of the pair of housings for controlling a cursor of computer. When the second housing is rotated 180 degrees related to the first housing along an axil line on the first joint surface of the first housing, the electrical connector can be inserted in the other socket.Type: ApplicationFiled: August 13, 2012Publication date: June 20, 2013Applicants: LITE-ON TECHNOLOGY CORPORATION, SILITEK ELECTRONIC (GUANGZHOU) CO., LTD.Inventor: EN LIU
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Patent number: 8467609Abstract: The present invention provides a document management device including a file receiving device for receiving a document; an optical identification device for performing optical identification on a non-textural content in the received document; a feature mark identifier for setting up a feature mark for the document; and a database for storing the document, which can be output from the database directly or through the file receiving device. The present invention also discloses a document management method. The device and method of the present invention have functions of identification, classification, search, and save.Type: GrantFiled: July 24, 2009Date of Patent: June 18, 2013Assignee: Otiga Technologies LimitedInventors: Lee-En Liu, I-Pang Lin, Yen-Chang Chen, Shengfu Lin
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Patent number: 8274035Abstract: A photosensor circuit including a first node, a level shifting circuit, a phototransistor and an inverter is provided. The first node has an operation voltage signal. The level shifting circuit is coupled to the first node for biasing the first node, so that the operation voltage signal is biased to an operation biasing level. The phototransistor is coupled to the first node for receiving an optical signal and accordingly generates a first electrical signal by means of controlling the level of the operation voltage signal. The inverter receives the first electrical signal and accordingly generates and outputs a second electrical signal, which indicates the intensity of the optical signal.Type: GrantFiled: February 25, 2010Date of Patent: September 25, 2012Assignee: Industrial Technology Research InstituteInventors: Shou-En Liu, Yung-Hui Yeh
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Publication number: 20120100539Abstract: The invention provides a method for determining a risk for kidney stones to develop in a subject, including: obtaining a biosample of the subject; detecting the presence of the single-nucleotide polymorphism rs12313273 (C/T) at position 30881 of the ORAI1 gene (SEQ ID No.: 1) in the biosample; and determining a risk for kidney stones to develop in the subject, wherein if the presence of a C allele of the single-nucleotide polymorphism rs12313273 (C/T) is detected, it indicates that the subject has an increased risk for kidney stones to develop.Type: ApplicationFiled: October 20, 2011Publication date: April 26, 2012Applicant: KAOHSIUNG MEDICAL UNIVERSITYInventors: Wei-Chiao Chang, Yii-Her Chou, Suh-Hang Hank Juo, Mu-En Liu, Chen-Chia Chang, Yi-Ching Chiu
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Patent number: 8159844Abstract: A full-wave rectifying device includes a first rectification module and a second rectification module. The first rectification module includes one or a plurality of first rectification units. The second rectification module includes one or a plurality of second rectification units. In each of a plurality of transistors, the substrate is connected to the source so as to reduce the body effect of the rectifying circuit efficiently and enable generation of a dc voltage signal through rectification by a plurality of capacitors. A multistage rectifying circuit architecture including a plurality of first rectification units and second rectification units is provided, so as to reduce the body effect of transistors of a conventional rectifier and significantly stabilize the voltage output level, thereby allowing the rectifying circuit to generate a dc voltage level of designed value.Type: GrantFiled: October 28, 2008Date of Patent: April 17, 2012Assignee: National Taiwan UniversityInventors: Chi-En Liu, Jean-Fu Kiang
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Patent number: 8111057Abstract: A cascode current mirror circuit and a bandgap circuit are provided. The circuits are used together and function as a reference voltage circuit. The reference voltage circuit outputs a reference current resistant to temperature variation and ripple-voltage. Accordingly, a voltage stabilizing/regulating circuit corrects error voltage precisely and promptly, and the resultant voltage is temperature insensitive and ripple-voltage-independent.Type: GrantFiled: August 4, 2008Date of Patent: February 7, 2012Assignee: National Taiwan UniversityInventors: Chi-En Liu, Jean-Fu Kiang
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Patent number: 7967589Abstract: A forming mold for making ceramics having a pattern includes a first mold made of a water-permeable material and including a first press face, a second mold made of a water-permeable material and including a second press face, and a third mold made of a water non-permeable material and disposed between the first and second molds. The third mold has a third press face in contact with the first press face, and a patterned face opposite to the third press face and cooperating with the second press face to confine a forming space.Type: GrantFiled: October 1, 2008Date of Patent: June 28, 2011Inventor: Te-En Liu
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Patent number: 7932791Abstract: A signal modulation device and a signal amplifier cooperative therewith. The signal modulation device includes a local oscillation signal source, a baseband signal source, a first NMOS transistor, and a second NMOS transistor, wherein the first and second NMOS transistors are coupled with the baseband signal source and form a circuit architecture of a Gilbert-cell based differential pair to be directly switched by a differential baseband signal, and a high-frequency signal from the local oscillation signal source is controlled by the baseband signal so as to generate an amplitude-modulation high-frequency signal at an output end. The single-stage signal power amplifier amplifies the amplitude-modulation signal from the preceding circuit so as to increase the magnitude of signals transmitted and simplify the preceding digital/analog signal conversion circuit in a conventional amplitude-modulation circuit.Type: GrantFiled: December 30, 2008Date of Patent: April 26, 2011Assignee: National Taiwan UniversityInventors: Chi-En Liu, Jean-Fu Kiang
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Publication number: 20110073749Abstract: A photosensor circuit including a first node, a level shifting circuit, a phototransistor and an inverter is provided. The first node has an operation voltage signal. The level shifting circuit is coupled to the first node for biasing the first node, so that the operation voltage signal is biased to an operation biasing level. The phototransistor is coupled to the first node for receiving an optical signal and accordingly generates a first electrical signal by means of controlling the level of the operation voltage signal. The inverter receives the first electrical signal and accordingly generates and outputs a second electrical signal, which indicates the intensity of the optical signal.Type: ApplicationFiled: February 25, 2010Publication date: March 31, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shou-En Liu, Yung-Hui Yeh