Patents Assigned to Lite-On Semiconductor Corp.
  • Publication number: 20220121265
    Abstract: A low power operation method provides an apparatus with a data transmission rate. A power management unit (PMU), which is not influenced by voltage, process, and temperature, biases a high frequency oscillator (HOSC) and makes the HOSC generate a steady and high precision clock. The clock of the HOSC is used to modify a timing length of a timer which is referenced by a low frequency oscillator (LOSC) without PMU. At last, through the modified timing length, the apparatus achieves high precision periods and data transmissions with compensation for voltage, process, and temperature. Thus, the data transmission cycles of the apparatus maintain stable and robust even if the apparatus applies duty cycle usage of the HOSC and the PMU for reducing power consumption with actions of turning on and turning off. Consequently, the periodic apparatus maintains data transmission rate with the low power consumption advantage of non-periodic apparatus.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 21, 2022
    Applicants: Dyna Image Corporation, Lite-On Semiconductor Corp.
    Inventors: Peng-Han Chan, Chun-Hsien Lin, Sheng-Cheng Lee, Wen-Sheng Lin, Yu-Cheng Su
  • Patent number: 10951163
    Abstract: A smart method is provided for a low-current oscillatory circuitry. The circuitry comprises an oscillator and a microcontroller unit (MCU). The oscillator comprises a proportional-to-absolute-temperature circuit connecting to a low-voltage regulator. The low-voltage regulator connects to a PMOS diode array and a delay unit circuit. The PMOS diode array connects to the MCU. The delay unit circuit connects to the MCU and a voltage converter. The method includes a normal temperature compensation algorithm; a smart learning algorithm of extra-high temperature compensation; and an ultra-high temperature compensation algorithm. Thus, clock variations are compensated; output frequency is stable and not affected by voltage or temperature variations; and process variations are suppressed. When process variations appear, there are not be too many errors generated.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: March 16, 2021
    Assignees: Dyna Image Corporation, Lite-On Semiconductor Corp.
    Inventors: Sheng-Cheng Lee, Wen-Sheng Lin, Yu-Cheng Su, Chun-Hsien Lin, Peng-Han Chan
  • Patent number: 9859447
    Abstract: A diode device and manufacturing method thereof are provided. The diode device includes a substrate, an epitaxial layer, a trench gate structure, a Schottky diode structure and a termination structure. An active region and a termination region are defined in the epitaxial layer. The Schottky diode structure and the trench gate structure are located in the active region and the termination structure is located in the termination region. The termination structure includes a termination trench formed in the epitaxial layer, a termination insulating layer, a first spacer, a second spacer and a first doped region. The termination insulating layer is conformingly formed on inner walls of the termination trench. The first and second spacers are disposed on two sidewalls of the termination trench. The first doped region formed beneath the termination trench has a conductive type reverse to that of the epitaxial layer.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: January 2, 2018
    Assignee: LITE-ON SEMICONDUCTOR CORP.
    Inventors: Shih-Han Yu, Sung-Ying Tsai, Yu-Hung Chang, Ju-Hsu Chuang, Chih-Wei Hsu
  • Patent number: 9711636
    Abstract: A super-junction semiconductor device is provided. The super-junction semiconductor device includes a substrate, a drift layer, a field insulator, a floating electrode layer, an isolation layer, and at least one transistor structure. The drift layer includes a plurality of n-type and p-type pillars alternately arranged in parallel to form a super-junction structure. An active region, a termination region and a transition region located therebetween are defined in the drift layer. The field insulator disposed on a surface of the drift layer covers the termination region and a portion of the transition region. The floating electrode layer disposed on the field insulator partially overlaps with the termination region. The transistor structure includes a source conductive layer extending from the active region to the transition region and superimposed on a portion of the floating electrode layer. The source conductive layer is isolated from the floating electrode layer by the isolation layer.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: July 18, 2017
    Assignee: LITE-ON SEMICONDUCTOR CORP.
    Inventors: Jia-Jan Guo, Chih-Wei Hsu, Ju-Hsu Chuang, Shih-Han Yu
  • Patent number: 8987870
    Abstract: A bridge rectifier including a common P-type diode, a common N-type diode, two first metal layers, two pairs of second metal layers, two AC inputs and two DC outputs. The P-type diode includes a common P-type doping region, a pair of first N-type substrate regions and a pair of P-type doping regions. The N-type diode includes a common N-type doping region, a pair of second N-type substrate regions and a pair of N-type doping regions. The first metal layers connect to the common N-type doping region and the common P-type doping region. The second metal layers connect to the P-type doping region and the N-type doping region. Two AC inputs connect to one of the second metal layers of the P-type diode and one of the second metal layers of the N-type diode respectively. Two DC inputs connect to the first metal layers respectively.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: March 24, 2015
    Assignee: Lite-On Semiconductor Corp.
    Inventor: Ching-Chiu Tseng
  • Patent number: 8963884
    Abstract: An optical touch panel and a method of detecting touch point positions on an optical touch panel are provided. The optical touch panel includes a processing unit, and at least three optical detectors divided into at least two detector groups. Each of the optical detectors is configured to output a signal indicating intensities of light detected thereby, and is associated with a detection range. The processing unit is configured to receive the signals from the optical detectors, to determine which of the optical detectors detect touch points within the respective detection range according to the signals received by the processing unit, and to obtain an optimum set of coordinates for at least one of the touch points with respect to an optimum detector group which is one of the detector groups formed by the optical detectors that detect the touch points.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: February 24, 2015
    Assignee: Lite-On Semiconductor Corp.
    Inventors: Jau-Yu Chen, Chih-Hao Chen
  • Patent number: 8907372
    Abstract: A thyristor includes a base region, a pair of first doping regions, at least one second doping region, at least one third doping region, and a pair of metal layers. The first doping regions are formed in two opposite sides of the base region and touch the base region. The second doping region is formed between the base region and one of the first doping regions. The second doping region touches the base region and the first doping region. The third doping region is formed in one of the first doping regions and touches the first doping region. The type of the first doping region is different from the types of the second doping region, the third doping region, and the base region. The metal layers touch the first doping regions respectively. The first doping regions and the third doping region are located between the metal layers.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: December 9, 2014
    Assignee: Lite-On Semiconductor Corp.
    Inventors: Pen-Te Chang, Wen-Chung Liu
  • Patent number: 8724852
    Abstract: A method for sensing a motion of an object is to be implemented by a motion recognition device that includes an image acquiring unit and a processor. In the method, the image acquiring unit is configured to acquire a series of image frames by detecting intensity of light received thereby. The processor is configured to receive at least one of the image frames and to determine whether an object is detected in the at least one of the image frames. When an object is detected, the processor is further configured to receive the image frames from the image acquiring unit, and to determine a motion of the object with respect to a three-dimensional coordinate system according to the image frames thus received.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: May 13, 2014
    Assignee: Lite-On Semiconductor Corp.
    Inventors: Meng-Kun Chen, Chih-Hao Chen
  • Publication number: 20140110751
    Abstract: A thyristor includes a base region, a pair of first doping regions, at least one second doping region, at least one third doping region, and a pair of metal layers. The first doping regions are formed in two opposite sides of the base region and touch the base region. The second doping region is formed between the base region and one of the first doping regions. The second doping region touches the base region and the first doping region. The third doping region is formed in one of the first doping regions and touches the first doping region. The type of the first doping region is different from the types of the second doping region, the third doping region, and the base region. The metal layers touch the first doping regions respectively. The first doping regions and the third doping region are located between the metal layers.
    Type: Application
    Filed: October 19, 2012
    Publication date: April 24, 2014
    Applicant: LITE-ON SEMICONDUCTOR CORP.
    Inventors: PAN-TE CHANG, WEN-CHUNG LIU
  • Publication number: 20130075579
    Abstract: Disclosure is related to an electromagnetic wave sensing apparatus with integration of multiple sensors, and a method for applying the apparatus. According to one of the embodiments, the method adapted to an electronic wave sensing apparatus includes an initialized step of a host enabled to configure one or more sensors of the electronic wave sensing apparatus. The initialization for those sensors includes one or more setting items selected from resolution, gain, data rate, frequency, and driving current. A next step is to set up a control unit electrically connected with the multiple sensors, and the related setting items are such as output format, output gain, output source, output level, and output driving current. Based on the setting items, the signals will be shaped accordingly and be output. In response to the setting items, the control unit drives one or more internal devices or external devices to function the various applications.
    Type: Application
    Filed: November 23, 2012
    Publication date: March 28, 2013
    Applicant: LITE-ON SEMICONDUCTOR CORP.
    Inventor: Lite-On Semiconductor Corp.
  • Publication number: 20130051617
    Abstract: A method for sensing a motion of an object is to be implemented by a motion recognition device that includes an image acquiring unit and a processor. In the method, the image acquiring unit is configured to acquire a series of image frames by detecting intensity of light received thereby. The processor is configured to receive at least one of the image frames and to determine whether an object is detected in the at least one of the image frames. When an object is detected, the processor is further configured to receive the image frames from the image acquiring unit, and to determine a motion of the object with respect to a three-dimensional coordinate system according to the image frames thus received.
    Type: Application
    Filed: May 14, 2012
    Publication date: February 28, 2013
    Applicant: LITE-ON SEMICONDUCTOR CORP.
    Inventors: MENG-KUN CHEN, CHIH-HAO CHEN
  • Patent number: 8379107
    Abstract: A flicker detection method of an image sensing device is disclosed. The image sensing device includes a sensor and a processor. The method comprises steps of: sequentially detecting multiple frames according to a frame rate, wherein each of the multiple frames includes a light signal; generating a light intensity information based on the light signals; determining a sampling window according to a predetermined detection frequency and the frame rate; dividing the light intensity information into multiple light intensity groups according to the sampling window; distinguishing a feature of each light intensity group, and recording an index position of each feature of the light intensity groups; calculating, individually, a difference between the index positions of the adjacent light intensity groups; and determining whether the differences are patterned, in order to determine whether the light intensity information corresponds to a flicker.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: February 19, 2013
    Assignee: Lite-On Semiconductor Corp.
    Inventor: Jau-Yu Chen
  • Patent number: 8373680
    Abstract: A coordinate information correction method for an optical touch panel includes: a) determining a set of to-be-corrected included angle values according to output signals received from light detectors, each of the to-be-corrected included angle values representing an included angle between a base line and a connecting line that extends from a respective one of the light detectors to a location of an object in a light curtain region; b) calculating a set of correction values, each of which is a finite order function of a respective one of the to-be-corrected included angle values; c) calculating a set of corrected included angle values from the set of to-be-corrected included angle values and the set of correction values; and d) generating corrected coordinate information associated with the location of the object in the light curtain region from the corrected included angle values.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: February 12, 2013
    Assignee: Lite-On Semiconductor Corp.
    Inventors: Jau-Yu Chen, Yu-Wen Ting
  • Patent number: 8355055
    Abstract: A method for real-time adjusting image capture frequency by an image detection apparatus comprises: sensing the frames consecutively by an image detection unit; setting a value for a counting variable; selecting a testing frame from the frames and comparing an image displacement between the testing frame and a previous frame thereof, to obtain a motion reference signal by a processing unit; providing a plurality of adjustable values for a capturing frequency variable by a memory unit and corresponding either one of the capturing frequency variable values to the motion reference signal; comparing the value of the counting variable to that of the capturing frequency variable by the processing unit; capturing and recording the testing frame as a sampling frame while the counting variable value reaches that of the capturing frequency variable; comparing an image displacement between the sampling frame and a previous frame thereof, to obtain an ultimate motion speed.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: January 15, 2013
    Assignee: Lite-On Semiconductor Corp.
    Inventor: Jau-Yu Chen
  • Patent number: 8269839
    Abstract: An image motion sensing method applicable for an image sensing device includes the steps of capturing a plurality of sensing frames, each sensing frame including image position information of an image; selecting a base frame from the sensing frames and a sampling frame disposed after the base frame; comparing image position information of images in the base frame and the sampling frame within a base comparison range of the base frame and a sampling comparison range of the sampling frame to generate displacement information; determining a comparison range size according to the displacement information; updating sampling comparison range according to the comparison range size; selecting a sensing frame after the sampling frame as an updated sampling frame; updating the base comparison range of the base frame according to the comparison range size; and returning to the foregoing step of comparing the image position information.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: September 18, 2012
    Assignee: Lite-On Semiconductor Corp.
    Inventors: Jau-Yu Chen, Meng-Kun Chen, Yu-Cheng Sung
  • Patent number: 8222585
    Abstract: A three-dimensional position detecting device includes an electromagnetic radiation source, a first sensing module having first sensing elements, and a second sensing module having second sensing elements. The first and the second sensing elements receive different radiation energies from different spatial direction angles generated by the electromagnetic radiation source relative to the first and the second sensing elements, so values of two spatial direction angles of the electromagnetic radiation source relative to the first and the second sensing modules are obtained according to magnitude relationship of the radiation energies received by the first and the second sensing modules. According to matrix operation of two spatial distances from the electromagnetic radiation source to the first and the second sensing modules and the two spatial direction angles, a spatial coordinate position of the electromagnetic radiation source relative to the first and the second sensing modules is obtained.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: July 17, 2012
    Assignee: Lite-On Semiconductor Corp.
    Inventors: Chia-Chu Cheng, Jau-Yu Chen, Chih-Cheng Kuan
  • Publication number: 20120162135
    Abstract: An optical touch apparatus includes: a frame having a first side that has a first connecting unit; a lighting module for generating light, the lighting module having a second connecting unit connected to the first connecting unit of the first side of the frame such that the lighting module is mounted to the first side of the frame; and two optical sensors mounted on the frame and disposed respectively at two corners of the frame, each of the optical sensors sensing the light generated by the lighting module.
    Type: Application
    Filed: April 14, 2011
    Publication date: June 28, 2012
    Applicant: LITE-ON SEMICONDUCTOR CORP.
    Inventor: KUN-HSUN LEE
  • Publication number: 20120162136
    Abstract: An optical touch panel and a method of detecting touch point positions on an optical touch panel are provided. The optical touch panel includes a processing unit, and at least three optical detectors divided into at least two detector groups. Each of the optical detectors is configured to output a signal indicating intensities of light detected thereby, and is associated with a detection range. The processing unit is configured to receive the signals from the optical detectors, to determine which of the optical detectors detect touch points within the respective detection range according to the signals received by the processing unit, and to obtain an optimum set of coordinates for at least one of the touch points with respect to an optimum detector group which is one of the detector groups formed by the optical detectors that detect the touch points.
    Type: Application
    Filed: May 3, 2011
    Publication date: June 28, 2012
    Applicant: LITE-ON SEMICONDUCTOR CORP.
    Inventors: JAU-YU CHEN, CHIH-HAO CHEN
  • Publication number: 20120138771
    Abstract: A reflective optical detecting device is for detecting movement of an object in a predetermined area. The reflective optical detecting device includes a light emitting unit, at least two optical detectors, and a comparing unit. The light emitting unit is used for illuminating the predetermined area. The optical detectors are disposed at opposite sides of the light emitting unit, and each of the optical detectors is associated with a respective detection region within the predetermined area for generating an output signal in response to light reflected from the object and detected thereby. The comparing unit is coupled to the optical detectors for receiving the output signal from each of the optical detectors, and is operable to output a comparison result according to the output signal of each of the optical detectors. The comparison result is to be used for determining the movement of the object.
    Type: Application
    Filed: March 28, 2011
    Publication date: June 7, 2012
    Applicant: LITE-ON SEMICONDUCTOR CORP.
    Inventors: WEN-CHIEH LI, MENG-KUN CHEN, MING-CHIEH TSOU, YUNG-SHENG SHEN, CHUN-HSIEN LIN
  • Publication number: 20120112044
    Abstract: A method of signal adjustment in an optical sensing device is provided. The optical sensing device includes a first optical sensor and a first reference optical sensor. The first optical sensor corresponds to a first specified ideal spectral response and generates a first output signal corresponding to light detected thereby. The first reference optical sensor generates a first reference signal corresponding to light detected thereby, and is disposed adjacent to the first optical sensor such that the light detected by the first reference optical sensor is substantially the light detected by the first optical sensor. The method includes the steps of: a) receiving the first output signal and the first reference signal; and b) generating a first adjusted output signal having a spectral response that approximates the first specified ideal spectral response, by adjusting the first output signal according to the first reference signal.
    Type: Application
    Filed: March 29, 2011
    Publication date: May 10, 2012
    Applicant: LITE-ON SEMICONDUCTOR CORP.
    Inventors: MENG-KUN CHEN, CHUN-HSIEN LIN, YI-TSUNG LI