Patents by Inventor Hong-Hai Dai

Hong-Hai Dai 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: 11870774
    Abstract: A method for authentication data transmission and a system thereof are provided. The method is operated in a computer system that is connected to a biometric device, and a secure channel is established there-between according to a security protocol. The computer system can receive encrypted biometric feature data from the biometric device based on a request. In a secure environment built in the computer system, the biometric feature data is decrypted and biometric features can be extracted. A comparison result is generated after comparing the biometric features with feature data in a database. The comparison result can be transmitted to the biometric device. The comparison result is then encrypted in the biometric device according to the security protocol. The biometric device can therefore transmit the encrypted comparison result to the computer system via the secure channel.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: January 9, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Hong-Hai Dai, Yang Li, Dong-Yu He, Jiayuan Tan
  • Publication number: 20230232543
    Abstract: A die package structure and a method for fabricating the same are provided. The method includes: fixing a first die on a package base; aligning first hollow pads of a flexible printed circuit board with first pads of the first die, and fixing the flexible printed circuit board; soldering the first hollow pads to the first pads; fixing a second die on the flexible printed circuit board to overlap with the first die; folding the flexible printed circuit board, such that second hollow pads of the flexible printed circuit board are aligned with second pads of the second die, and signal test pads of the flexible printed circuit board are exposed; fixing the flexible printed circuit board on the second die; soldering the second hollow pads to the second pads; soldering metal wires to the signal test soldering pads; and soldering package pins to the metal wires.
    Type: Application
    Filed: May 12, 2022
    Publication date: July 20, 2023
    Inventors: Hai-Tao Li, Hong-Hai Dai
  • Patent number: 11640658
    Abstract: The present disclosure discloses a multi-path image processing apparatus. An image merging circuit is configured to receive image frames that at least one of the image frames has a largest row number, generate redundant pixel row for each of the image frames that has a row number smaller than the largest row number such that the row number of each of the image frames equals to the largest row number, generate redundant pixel columns for each of the image frames having the number thereof determined by a size of a largest operation window, and merge each two of the image frames through the redundant columns thereof to generate a merged image frame. An image processing circuit performs image processing procedure on the merged image frame to generate a processed merged image frame, wherein at least a part of the image processing procedure is operated according to the largest operation window. An image segmentation circuit segments the processed merged image frame to generate processed image frames.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: May 2, 2023
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Qing-Zhe Qiu, Dong-Yu He, Shao-Hua Jin, Hong-Hai Dai
  • Publication number: 20220014414
    Abstract: A method for authentication data transmission and a system thereof are provided. The method is operated in a computer system that is connected to a biometric device, and a secure channel is established there-between according to a security protocol. The computer system can receive encrypted biometric feature data from the biometric device based on a request. In a secure environment built in the computer system, the biometric feature data is decrypted and biometric features can be extracted. A comparison result is generated after comparing the biometric features with feature data in a database. The comparison result can be transmitted to the biometric device. The comparison result is then encrypted in the biometric device according to the security protocol.
    Type: Application
    Filed: May 11, 2021
    Publication date: January 13, 2022
    Inventors: HONG-HAI DAI, YANG LI, DONG-YU HE, JIAYUAN TAN
  • Publication number: 20220005167
    Abstract: The present disclosure discloses a multi-path image processing apparatus. An image merging circuit is configured to receive image frames that at least one of the image frames has a largest row number, generate redundant pixel row for each of the image frames that has a row number smaller than the largest row number such that the row number of each of the image frames equals to the largest row number, generate redundant pixel columns for each of the image frames having the number thereof determined by a size of a largest operation window, and merge each two of the image frames through the redundant columns thereof to generate a merged image frame. An image processing circuit performs image processing procedure on the merged image frame to generate a processed merged image frame, wherein at least a part of the image processing procedure is operated according to the largest operation window. An image segmentation circuit segments the processed merged image frame to generate processed image frames.
    Type: Application
    Filed: December 23, 2020
    Publication date: January 6, 2022
    Inventors: QING-ZHE QIU, DONG-YU HE, SHAO-HUA JIN, HONG-HAI DAI
  • Publication number: 20210390166
    Abstract: An electronic component for an electronic device with a locking function and an unlocking method thereof are provided. The unlocking method includes: receiving a first sound extraction request by a first processing circuit when the electronic device is in a locked mode; determining, by the first processing circuit, whether a first voice input signal is received after receiving the first sound extraction request; determining, by the first processing circuit when the first processing circuit receives the first voice input signal, whether first voice data included in the first voice input signal matches first preset voice data; and transmitting, by the first processing circuit, the first voice input signal to the second processing circuit when the first voice data matches the first preset voice data, to trigger the second processing circuit to determine whether second voice data included in the first voice input signal matches second preset voice data.
    Type: Application
    Filed: September 30, 2020
    Publication date: December 16, 2021
    Applicant: REALTEK SEMICONDUCTOR CORP.
    Inventors: Song Li, Hong-Hai Dai, Fu-Juan Cen
  • Publication number: 20190212930
    Abstract: This invention discloses a data storage chip and a data access method. The data access method is applied to a memory that includes a first area having a first range of memory address and a second area having a second range of memory address. The first range of memory address and the second range of memory address do not overlap. The method includes steps of: reading a predetermined address of the first area to obtain a control value; receiving a memory read command containing a target address; accessing the first area according to the memory read command when the target address is within the first range of memory address, and accessing the second area according to the memory read command when the target address is within the second range of memory address; and selectively sending the data read from the first area according to the control value.
    Type: Application
    Filed: December 18, 2018
    Publication date: July 11, 2019
    Inventors: ZHENBING QIAN, DONG-YU HE, XIN YIN, ZHAOCHI LIU, HONG-HAI DAI
  • Patent number: 8648968
    Abstract: A saturation adjusting apparatus for processing a pixel, which has three color components each having a value falling within a range defined by upper and lower extreme values, of a RGB color model includes an extreme value controller and a component adjuster. The extreme value controller determines maximum and minimum extreme value thresholds for ensuring that the values of the color components of the pixel after undergoing linear color correction processing based on a correction indicator fall within the range defined by the upper and lower extreme values. The component adjuster includes a decision-making unit for choosing the correction indicator from a group of values which includes the maximum extreme value threshold, the minimum extreme value threshold, and a saturation setting. The component adjuster further includes a color corrector for performing linear color correction processing on the three color components of the pixel using the correction indicator.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: February 11, 2014
    Assignee: Realtek Semiconductor Corp.
    Inventors: Li-Cong Hou, Dong-Yu He, Hong-Hai Dai
  • Patent number: 8606016
    Abstract: An edge detection apparatus includes a computing circuit and a determining circuit. The computing circuit includes a first multiplier block and a first adder unit. The first multiplier block includes n×m first multiplier units, wherein each first multiplier unit has a first multiplication factor. The n×m first multiplier units respectively perform multiplications on n×m pixels which are arranged as an n×m matrix to generate n×m first product values based on the corresponding first multiplication factors. The n×m pixels include a target pixel, where n is not equal to m. The first adder unit generates a first computation result according to the n×m first product values. The determining circuit determines if the target pixel is an edge pixel according to at least the first computation result.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: December 10, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Li-Cong Hou, Hong-Hai Dai
  • Publication number: 20120026404
    Abstract: A saturation adjusting apparatus for processing a pixel, which has three color components each having a value falling within a range defined by upper and lower extreme values, of a RGB color model includes an extreme value controller and a component adjuster. The extreme value controller determines maximum and minimum extreme value thresholds for ensuring that the values of the color components of the pixel after undergoing linear color correction processing based on a correction indicator fall within the range defined by the upper and lower extreme values. The component adjuster includes a decision-making unit for choosing the correction indicator from a group of values which includes the maximum extreme value threshold, the minimum extreme value threshold, and a saturation setting. The component adjuster further includes a color corrector for performing linear color correction processing on the three color components of the pixel using the correction indicator.
    Type: Application
    Filed: July 29, 2011
    Publication date: February 2, 2012
    Applicant: Realtek Semiconductor Corp.
    Inventors: Li-Cong HOU, Dong-Yu HE, Hong-Hai DAI
  • Publication number: 20110069891
    Abstract: An edge detection apparatus includes a computing circuit and a determining circuit. The computing circuit includes a first multiplier block and a first adder unit. The first multiplier block includes n×m first multiplier units, wherein each first multiplier unit has a first multiplication factor. The n×m first multiplier units respectively perform multiplications on n×m pixels which are arranged as an n×m matrix to generate n×m first product values based on the corresponding first multiplication factors. The n×m pixels include a target pixel, where n is not equal to m. The first adder unit generates a first computation result according to the n×m first product values. The determining circuit determines if the target pixel is an edge pixel according to at least the first computation result.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 24, 2011
    Inventors: Li-Cong Hou, Hong-Hai Dai