Patents by Inventor NAMSON KWOK

NAMSON KWOK 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).

  • SYSTEM AND METHOD TO PROTECT PRIVACY OF PERSONAL-IDENTIFICATION-NUMBER ENTRY ON CONSUMER MOBILE DEVICE AND COMPUTING APPARATUS
    Publication number: 20230351385
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 2, 2023
    Inventors: Chi Wah Lo, Hwai Sian Tsai, Namson Kwok
  • System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus
    Patent number: 11756033
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: September 12, 2023
    Assignee: STRIPE, INC.
    Inventors: Chi Wah Lo, Hwai Sian Tsai, Namson Kwok
  • SYSTEM AND METHOD TO PROTECT PRIVACY OF PERSONAL-IDENTIFICATION-NUMBER ENTRY ON CONSUMER MOBILE DEVICE AND COMPUTING APPARATUS
    Publication number: 20220188826
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Inventors: Chi Wah Lo, Hwai Sian Tsai, Namson KWOK
  • System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus
    Patent number: 11288670
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: March 29, 2022
    Assignee: BBPOS Limited
    Inventors: Chi Wah Lo, Hwai Sian Tsai, Namson Kwok
  • SYSTEM AND METHOD TO PROTECT PRIVACY OF PERSONAL-IDENTIFICATION-NUMBER ENTRY ON CONSUMER MOBILE DEVICE AND COMPUTING APPARATUS
    Publication number: 20210049605
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 18, 2021
    Inventors: Chi Wah Lo, Hwai Sian Tsai, Namson Kwok
  • System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus
    Patent number: 10832243
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: November 10, 2020
    Assignee: BBPOS LIMITED
    Inventors: Chi Wah Lo, Hwai Sian Tsai, Namson Kwok
  • SYSTEM AND METHOD TO PROTECT PRIVACY OF PERSONAL-IDENTIFICATION-NUMBER ENTRY ON CONSUMER MOBILE DEVICE AND COMPUTING APPARATUS
    Publication number: 20200126081
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 23, 2020
    Inventors: Chi Wah LO, Hwai Sian TSAI, Namson KWOK
  • System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus
    Patent number: 10521793
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: December 31, 2019
    Assignee: BBPOS LIMITED
    Inventors: Hwai Sian Tsai, Namson Kwok, Chi Wah Lo
  • SYSTEM AND METHOD TO PROTECT PRIVACY OF PERSONAL-IDENTIFICATION-NUMBER ENTRY ON CONSUMER MOBILE DEVICE AND COMPUTING APPARATUS
    Publication number: 20180197180
    Abstract: A system for accepting the input of a PIN comprises a first device receiving a randomized PIN layout derived on a fourth device. The randomized PIN layout is displayed on a display of the first device. A second device comprises an input for accepting a series of key presses to produce a PIN token. The PIN token indicating each of the series of key presses. A third device is in communication with the second device. The third device derives the randomized PIN layout and receives the PIN token from the second device without the PIN token being present on the first device. The third device combines the PIN layout and the PIN token to produce a PIN. The PIN is used to authenticate a transaction. The fourth and third devices each store a shared secret used to independently derive the randomized PIN layout on the fourth and third devices.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 12, 2018
    Inventors: HWAI SIAN TSAI, NAMSON KWOK