Patents by Inventor Jui-Chi Wu

Jui-Chi 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).

  • Patent number: 9864015
    Abstract: A method applied into an electronic device and capable of measuring at least one resistance parameter includes: launching a program/application on the electronic device; and using the program/application to measure the at least one resistance parameter that is at least associated with a battery cell connected to and used for providing power to the electronic device.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: January 9, 2018
    Assignee: MEDIATEK INC.
    Inventors: Jui-Chi Wu, Chi-Ming Lee, Kai-Hsun Chou
  • Publication number: 20170227607
    Abstract: Methods are provided to be able to efficiently and precisely estimate/predict an available capacity of a battery. One method is arranged to estimate/predict the available capacity of the battery according to a first battery percentage result, a second battery percentage result, and a calculated power when the battery is being operated or used within a specific operating range distinct from a normal operating range. Another method is arranged to estimate the available capacity by measuring battery's internal resistance and referencing a precise battery aging model.
    Type: Application
    Filed: October 5, 2016
    Publication date: August 10, 2017
    Inventors: Jui-Chi Wu, Jia-You Chuang, Wan-Yi Horng, Jui Wang
  • Publication number: 20170227609
    Abstract: A method capable of accurately estimating a power percentage of a battery includes: performing a first fuel gauge operation to measure a power percentage of the battery to generate first information; performing a second fuel gauge operation to measure the power percentage of the battery to generate second information, the first fuel gauge operation being different from the second fuel gauge operation; and, dynamically determining one among at least the first percentage and the second percentage as the power percentage of the battery.
    Type: Application
    Filed: October 6, 2016
    Publication date: August 10, 2017
    Inventors: Jui-Chi Wu, Jia-You Chuang, Wan-Yi Horng, Jui Wang
  • Publication number: 20160299551
    Abstract: A method for power throttling upon a system includes: obtaining at least one characteristic information of a power source that is used for providing energy for the system; and, determining an available power range for the system according to the at least one characteristic information, so as to make the system control a behavior of the system according to the available power range.
    Type: Application
    Filed: November 28, 2014
    Publication date: October 13, 2016
    Inventors: Jui-Chi Wu, Chi-Ming Lee, Tsung-Ju Tsai
  • Publication number: 20160299179
    Abstract: A method for estimating an available power range as a reference for performing power throttling upon a system includes: estimating an extra power range that is instantaneously available for the system according to at least one characteristic information of a power source that is used for providing energy for the system; and, calculating the available power range for the system according to the extra power range and a currently consumed power range so that the system controls a behavior of the system according to the available power range.
    Type: Application
    Filed: November 5, 2015
    Publication date: October 13, 2016
    Inventors: Jui-Chi Wu, Tsung-Ju Tsai, Chi-Ming Lee
  • Publication number: 20160238663
    Abstract: An apparatus used with a processor to perform fuel gauge operation for a battery of a portable device includes a voltage measuring circuit and a control circuit. The voltage measuring circuit periodically measures and records a battery pack voltage for the battery according to time information received from the processor after the processor enters a sleep mode. The control circuit generates an accumulation result by calculating and accumulating at least one value of battery characteristics according to the battery pack voltage, and compares the accumulation result with a reference threshold of battery characteristics to determine whether to trigger an interrupt to wake up the processor, so as to cause the processor to update a battery cell voltage and an internal battery resistance of the battery for performing fuel gauge operation.
    Type: Application
    Filed: November 8, 2015
    Publication date: August 18, 2016
    Inventor: Jui-Chi Wu
  • Publication number: 20160195585
    Abstract: A system for determining a remaining battery capacity includes a detection circuitry and a controller. The detection circuitry is coupled to a battery device for detecting an open circuit and a closed circuit voltage of the battery device. The controller is coupled to the detection circuitry, calculates an amount of current drawn out from the battery device based on values of the open circuit voltage and the closed circuit voltage and a resistance of the internal resistor, calculates a present depth of discharge based on the amount of current, and determines the remaining battery capacity of the battery device according to the present depth of discharge.
    Type: Application
    Filed: December 28, 2015
    Publication date: July 7, 2016
    Inventors: Jui-Chi WU, Yong-Sheng LO
  • Publication number: 20160126758
    Abstract: A method used between a portable device and a battery pack including at least one battery cell includes: transmitting information for the battery cell from the portable device to the battery pack via the connecting interface or from the battery pack to the portable device via the connecting interface; and, according to the information for the battery cell, performing at least one control operation that is associated with the battery cell.
    Type: Application
    Filed: June 13, 2014
    Publication date: May 5, 2016
    Inventors: Jui-Chi Wu, Chi-Ming Lee, Chih-Yuan Hsu
  • Publication number: 20160049815
    Abstract: A method for controlling a state of a battery includes: providing and using a specific connecting interface to connect the battery and a portable device; and controlling the battery to enter a shipping mode and exit the shipping mode by using the specific connecting interface.
    Type: Application
    Filed: August 10, 2015
    Publication date: February 18, 2016
    Inventors: Jui-Chi Wu, Chi-Ming Lee, Chih-Yuan Hsu
  • Publication number: 20160041207
    Abstract: A method for performing power consumption control is provided, where the method is applied to an electronic device. The method includes: sensing a current on a current path between a battery and at least one portion of the electronic device by performing sampling operations to generate a plurality of samples; performing calculation on the samples to monitor the current; and based upon the calculation, when it is detected that the current reaches a predetermined threshold, triggering the battery into a second mode from a first mode. In particular, performing the sampling operations to generate the plurality of samples further includes: utilizing an analog-to-digital converter (ADC) to perform the sampling operations on a voltage difference corresponding to the current to generate the plurality of samples. For example, the voltage difference can be obtained by probing two terminals of a resistor or a Hall component. An associated apparatus is also provided.
    Type: Application
    Filed: October 18, 2015
    Publication date: February 11, 2016
    Inventors: Chao-Kuo Cheng, Jui-Chi Wu
  • Publication number: 20150338466
    Abstract: A power management apparatus used in a system comprising multiple batteries includes an ADC measurement circuit and a processing circuit. The ADC measurement circuit is configured for measuring or detecting a plurality of voltage levels for each of the multiple batteries. The processing circuit is configured for calculating a DC current for each of the batteries according to an internal resistance of each of the batteries and the detected voltage levels, and for estimating an internal voltage level for each of the batteries according to the calculated DC current.
    Type: Application
    Filed: May 19, 2015
    Publication date: November 26, 2015
    Inventor: Jui-Chi Wu
  • Publication number: 20150241521
    Abstract: A method applied into an electronic device and capable of measuring at least one resistance parameter includes: launching a program/application on the electronic device; and using the program/application to measure the at least one resistance parameter that is at least associated with a battery cell connected to and used for providing power to the electronic device.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 27, 2015
    Inventors: Jui-Chi Wu, Chi-Ming Lee, Kai-Hsun Chou
  • Publication number: 20150241518
    Abstract: A method applied into an electronic device and capable of automatically measuring at least one parameter includes: launching an automatic program/application on the electronic device; and using the automatic program/application to measure the at least one parameter that is at least associated with a battery cell connected to and used for providing power to the electronic device.
    Type: Application
    Filed: January 14, 2015
    Publication date: August 27, 2015
    Inventors: Jui-Chi Wu, Chi-Ming Lee
  • Publication number: 20130073236
    Abstract: A system for determining a remaining battery capacity includes a detection circuitry and a controller. The detection circuitry is coupled to a battery device at a detection node for detecting a closed circuit voltage of the battery device. The controller is coupled to the detection circuitry, derives an amount of current drawn out from the battery device based on the closed circuit voltage, calculates an open circuit voltage of the battery device based on the current, and determines the remaining battery capacity of the battery device based on the open circuit voltage.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 21, 2013
    Applicant: MEDIATEK INC.
    Inventors: Jui-Chi WU, Yong-Sheng LO
  • Patent number: 7239382
    Abstract: In a polarizing plate grading method a first measurement range A1 is chosen on a polarizing plate. After conducting an initial measurement by putting the polarizing plate under X1° C. for Y1 hours, the first measurement range is measured to obtain the maximum chromatic value Z1max (NIT,cd/m), and the minimum chromatic value Z1min. The minimum value is subtracted from the maximum value to obtain the net chromatic difference value W1. The temperature change measurement is conducted by putting the polarizing plate under X2° C. for Y2 hours and, then, the recovery measurement is conducted on the polarizing plate by putting the polarizing plate under X3° C. for Y3 hours. A first measurement range is measured to obtain the maximum chromatic value Z3max and the minimum chromatic value Z3min. The minimum chromatic value is subtracted from the maximum chromatic value to obtain the net chromatic difference value W3.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: July 3, 2007
    Assignee: Optimax Technology Corporation
    Inventors: Jui-Chi Wu, Yao-Chung Cheng
  • Publication number: 20060096045
    Abstract: A polarizing substrate is placed into a dyeing tank for dyeing. A concentration of a dyeing agent in the dyeing tank is less than 800 ppm, and a dyeing period is greater than 200 seconds, so as to improve the dyeing of the polarizing substrate by lengthening the dyeing period and reducing the dyeing agent concentration.
    Type: Application
    Filed: December 8, 2004
    Publication date: May 11, 2006
    Inventors: Jui-Chi Wu, Shih-Ming Chen, Yao-Chung Cheng
  • Publication number: 20060088658
    Abstract: A dry treatment method for decreasing contact angle on an optical film surface, includes providing an optical film and subjecting the optical film to ozone treatment to increase hydrophilic groups on a surface of the optical film so as to decrease contact angle on the optical film surface. The optical film treated with ozone will increase hydrophilic groups on the surface of the optical film to decrease its contact angle thereon. This method is able to reduce disadvantage of higher expense and inconvenient use in prior art of wet method.
    Type: Application
    Filed: March 8, 2005
    Publication date: April 27, 2006
    Applicant: OPTIMAX TECHNOLOGY CORPORATION
    Inventors: Jui-Chi Wu, Ming-Chih Shih, Yao-Chung Cheng, Chuan-Shu Wang, Yu-Chun Liu
  • Publication number: 20050200844
    Abstract: The present invention relates to a polarizing plates grading method. First, providing a polarizing plate, and choosing a first measurement range A1 on the polarizing plate; then conducting an initial measurement of the polarizing plate by putting the polarizing plate under X1° C. for Y1 hours, then measure the first measurement range to obtain the maximum chromatic value Z1max (NIT,cd/m), and the minimum chromatic value Z1min, and then subtracting the minimum value from the maximum value to obtain the net chromatic difference value W1, thus W1=Z1mas?Z1min; subsequently, conducting the temperature change measurement on the polarizing plate by putting the polarizing plate under X2° C. for Y2 hours (X2?X1); then conducting the recovery measurement on the polarizing plate by putting the polarizing plate under X3° C.
    Type: Application
    Filed: November 19, 2004
    Publication date: September 15, 2005
    Applicant: OPTIMAX TECHNOLOGY CORPORATION
    Inventors: Jui-Chi Wu, Yao-Chung Cheng
  • Patent number: 6820513
    Abstract: A reverse gear device of a combined variable transmission system includes a housing which is mounted on the rear wheel axle of a motor scooter for housing a drive bevel gear, a driven bevel gear, an idle bevel gear, an idle gear shaft, shifting forks, and a sector plate cam. The drive bevel gear and the driven bevel gear are identical in specification to each other and are mounted at two sides of the rear wheel axle on the basis of a toothed cone center. The drive bevel gear and the driven bevel gear are provided with a groove facing the toothed cone center. The drive bevel gear is disposed with the axle by a spline hole. The driven bevel gear is disposed with the axle by a round hole for the power transmission in the forward motion.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: November 23, 2004
    Inventors: Yao-Yu Chen, Jui-Chi Wu