Patents by Inventor An-Chi Tsai

An-Chi Tsai 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: 11467847
    Abstract: The disclosure provides a restart control device and a restart control method. The restart control device is disposed in an electronic device. The electronic device includes a keyboard and a restart button. At least one assigned key of a plurality of keys of the keyboard is set. The restart control device determines whether the at least one assigned key is pressed, and determines whether the restart button is pressed. When determining that the restart button is pressed and the at least one assigned key is pressed, the restart control device provides a restart control signal to cause the electronic device to perform a restart operation. The disclosure can prevent an unnecessary restart operation due to a single restart button being mistyped.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: October 11, 2022
    Assignee: ITE Tech. Inc.
    Inventors: Ching-Min Hou, An-Chi Tsai
  • Publication number: 20210208898
    Abstract: The disclosure provides a restart control device and a restart control method. The restart control device is disposed in an electronic device. The electronic device includes a keyboard and a restart button. At least one assigned key of a plurality of keys of the keyboard is set. The restart control device determines whether the at least one assigned key is pressed, and determines whether the restart button is pressed. When determining that the restart button is pressed and the at least one assigned key is pressed, the restart control device provides a restart control signal to cause the electronic device to perform a restart operation. The disclosure can prevent an unnecessary restart operation due to a single restart button being mistyped.
    Type: Application
    Filed: March 13, 2020
    Publication date: July 8, 2021
    Applicant: ITE Tech. Inc.
    Inventors: Ching-Min Hou, An-Chi Tsai
  • Patent number: 10666235
    Abstract: A temperature compensated oscillation circuit is provided. The temperature compensated oscillation circuit generates a first delay voltage and a second delay voltage according to the first resistance value. A first order term of a temperature change function of the first resistance value is eliminated. The temperature compensated oscillation circuit generates a reference voltage according to a first reference resistance value and a second reference resistance value. A first order term of a temperature change function of the first reference resistance value is set to equal to a first order term of a temperature change function of the second reference resistance value. The second reference resistance value is adjusted such that variation of the reference voltage matches a second order term of the temperature change function of the first resistance value, thereby providing a clock that does not vary due to a variation in temperature.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: May 26, 2020
    Assignee: ITE Tech. Inc.
    Inventors: Chia-Yuan Chou, An-Chi Tsai
  • Patent number: 10289211
    Abstract: A keyboard apparatus and a detection method for status of keys thereof are provided. The detection method includes the following steps. First lines of a key module in the keyboard apparatus are driven to a first potential. Whether any key on each of second lines in the key module is pressed is detected as a first detection result. The second lines are driven to the first potential. Whether any key on each of the first lines is pressed is detected as a second detection result. One of the first lines is sequentially selected, and a press status of each key on the selected first line is scanned through the second lines so as to generate a coarse scan result. The press status of each key is obtained and whether the press status is misjudged is determined according to the first and the second detection results and the coarse scan result.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: May 14, 2019
    Assignee: ITE Tech. Inc.
    Inventors: An-Chi Tsai, Chia-Yuan Chou
  • Patent number: 9684383
    Abstract: An electronic apparatus and a method for detecting status of keys thereof are provided. The electronic apparatus comprises a key module, a key control circuit, a conversion circuit with calibration mechanism and a processor. The key control circuit detects whether any of keys in the key module is pressed. If the detection result is affirmative, the press status of each of the keys is scanned by the key control circuit to obtain a coarse scan result. The conversion circuit with calibration mechanism is configured to perform the other system function of the electronic apparatus. When the processor determines that at least one of the keys is not pressed according the coarse scan result, the conversion circuit with calibration mechanism is switched to assist a re-scan operation of the press status of the at least one of the keys.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 20, 2017
    Assignee: ITE Tech. Inc.
    Inventors: Ching-Min Hou, An-Chi Tsai, Tzu-I Huang
  • Publication number: 20170168589
    Abstract: A keyboard apparatus and a detection method for status of keys thereof are provided. The detection method includes the following steps. First lines of a key module in the keyboard apparatus are driven to a first potential. Whether any key on each of second lines in the key module is pressed is detected as a first detection result. The second lines are driven to the first potential. Whether any key on each of the first lines is pressed is detected as a second detection result. One of the first lines is sequentially selected, and a press status of each key on the selected first line is scanned through the second lines so as to generate a coarse scan result. The press status of each key is obtained and whether the press status is misjudged is determined according to the first and the second detection results and the coarse scan result.
    Type: Application
    Filed: May 9, 2016
    Publication date: June 15, 2017
    Applicant: ITE Tech. Inc.
    Inventors: An-Chi Tsai, Chia-Yuan Chou
  • Publication number: 20170168588
    Abstract: An electronic apparatus and a method for detecting status of keys thereof are provided. The electronic apparatus comprises a key module, a key control circuit, a conversion circuit with calibration mechanism and a processor. The key control circuit detects whether any of keys in the key module is pressed. If the detection result is affirmative, the press status of each of the keys is scanned by the key control circuit to obtain a coarse scan result. The conversion circuit with calibration mechanism is configured to perform the other system function of the electronic apparatus. When the processor determines that at least one of the keys is not pressed according the coarse scan result, the conversion circuit with calibration mechanism is switched to assist a re-scan operation of the press status of the at least one of the keys.
    Type: Application
    Filed: April 27, 2016
    Publication date: June 15, 2017
    Applicant: ITE Tech. Inc.
    Inventors: Ching-Min Hou, An-Chi Tsai, Tzu-I Huang
  • Patent number: 9465579
    Abstract: Provided is a method for processing pipelined data using a variable-latency speculating booth multiplier (VLSBM), including a first operation and a second operation. The first operation has the steps of partitioning partial products into a least significant part (LSP) and a most significant part (MSP), estimating a carry of the LSP, computing the MSP based on the estimated carry, computing the LSP independently to obtain a true carry and detecting a computation error by comparing the estimated carry with the true carry. Also, the second operation has the step of correcting the computation error based on the difference between the estimated carry and the true carry. Further, a VLSBM for processing pipelined data is also provided.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 11, 2016
    Assignee: National Chiao Tung University
    Inventors: Chih-Wei Liu, Shin-Kai Chen, Kuo-Chiang Chang, Tsung-Yi Wu, An-Chi Tsai
  • Publication number: 20150261500
    Abstract: Provided is a method for processing pipelined data using a variable-latency speculating booth multiplier (VLSBM), including a first operation and a second operation. The first operation has the steps of partitioning partial products into a least significant part (LSP) and a most significant part (MSP), estimating a carry of the LSP, computing the MSP based on the estimated carry, computing the LSP independently to obtain a true carry and detecting a computation error by comparing the estimated carry with the true carry. Also, the second operation has the step of correcting the computation error based on the difference between the estimated carry and the true carry. Further, a VLSBM for processing pipelined data is also provided.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 17, 2015
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Chih-Wei Liu, Shin-Kai Chen, Kuo-Chiang Chang, Tsung-Yi Wu, An-Chi Tsai