Patents by Inventor Chi Wah Lo

Chi Wah Lo 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: 9818107
    Abstract: An apparatus for effecting commercial transactions with a server using a transaction card via a communication device is provided. The apparatus includes a transaction device coupled with the communication device for capturing information from the transaction card and a controller for converting the captured card information into an encrypted audio signal and for transmitting the audio signal to the communication device. The communication device delivers the audio signal to the server for processing the commercial transaction.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: November 14, 2017
    Assignee: 4361423 Canada Inc.
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages
  • Patent number: 9793712
    Abstract: A power management circuitry for a peripheral electronic device includes a power regeneration circuitry, a power selector, a power switch and an audio signal detection circuitry. The power regeneration circuitry receives a continuous periodic sound wave from an audio device and converts the continuous periodic sound wave into an amplified DC electrical signal. The power source selector receives the amplified DC electrical signal and input from a primary power source and provides a power signal output. The audio signal detection circuitry receives the amplified DC electrical signal and transmits a wake-up signal to the power switch circuitry. The power switch circuitry is turned on by the wake-up signal and connects the power source selector to the peripheral electronic device main circuitry and transfers the power signal output to the peripheral electronic device main circuitry.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: October 17, 2017
    Assignee: BBPOS LIMITED
    Inventors: Wing Cheong Chan, Hwai Sian Tsai, Chi Wah Lo
  • Publication number: 20170161722
    Abstract: An apparatus for commercial transactions using a transaction card via a communication device in audio communication with a remote processor assembly is provided. The apparatus comprises an input device for capturing information from the transaction card, a controller for converting the captured card information into an audio signal. The controller is linked to the communication device. The apparatus may also be part of an assembly wherein this controller is part of the communication device. The remote processor assembly includes a transaction server linked to a remote processor/issuer for validating the transaction card data. A system including this apparatus, the communication device and the transaction server is also provided. Methods therefore are also disclosed.
    Type: Application
    Filed: February 16, 2017
    Publication date: June 8, 2017
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages
  • Publication number: 20170134890
    Abstract: A method for pairing a first Bluetooth device with an individual Bluetooth device address with a group of Bluetooth devices, said method comprising: assigning a group Bluetooth device address to each of said group of Bluetooth devices; the first Bluetooth device exchanging Bluetooth device addresses with a second Bluetooth device from said group of Bluetooth devices when said first Bluetooth device comes within communication range of said second Bluetooth device; establishing a link key; storing the group Bluetooth device address and the link key; the first Bluetooth device exchanging Bluetooth device addresses with a third Bluetooth device from said group of Bluetooth devices when said first Bluetooth device comes within communication range of said third Bluetooth device; recognizing the group Bluetooth device address assigned to the third Bluetooth device; and establishing a communications channel between said first Bluetooth device and said third Bluetooth device based on said link key.
    Type: Application
    Filed: January 23, 2017
    Publication date: May 11, 2017
    Inventors: CHI MAN LAU, TAI KWAN JIMMY TANG, CHI WAH LO
  • Patent number: 9633234
    Abstract: A system for a secure display module includes a display element array, a driver controller, a communication interface, a host controller and a cryptographic engine. The display element array includes one or more segments, and the driver outputs are configured to drive the one or more segments, respectively. The host controller is configured to send commands and data to the driver controller via the communication interface and the cryptographic engine is configured to encrypt communication data between the display element array and the host controller.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: April 25, 2017
    Assignee: BBPOS Limited
    Inventors: Chi Wah Lo, Hwai Sian Tsai
  • Patent number: 9613351
    Abstract: An apparatus for effecting commercial transactions with a server using a transaction card via a communication device is provided. The apparatus includes a transaction device coupled with the communication device for capturing information from the transaction card and a controller for converting the captured card information into an encrypted audio signal and for transmitting the audio signal to the communication device. The communication device delivers the audio signal to the server for processing the commercial transaction.
    Type: Grant
    Filed: August 13, 2016
    Date of Patent: April 4, 2017
    Assignee: 4361423 Canada Inc.
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages
  • Patent number: 9613234
    Abstract: A magnetic reader head assembly includes a magnetic reader head compartment, a frame and an elastic component. The magnetic reader head compartment comprises electronic and mechanical components of the magnetic reader head. The frame has a front side and a back side and has a footprint matching the footprint of the magnetic reader head compartment. The front side is configured to attach to a back wall of the magnetic reader head compartment while allowing the magnetic reader head compartment to move out or retract from the frame. The elastic component is configured to be placed at the back side of the frame and to push the frame out in order to press the magnetic reader head compartment against a magnetic card stripe.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: April 4, 2017
    Assignee: BBPOS Limited
    Inventors: Chi Wah Lo, Hwai Sian Tsai, Kin Wai Chan
  • Patent number: 9591684
    Abstract: A method for pairing a first Bluetooth device with an individual Bluetooth device address with a group of Bluetooth devices, said method comprising: assigning a group Bluetooth device address to each of said group of Bluetooth devices; the first Bluetooth device exchanging Bluetooth device addresses with a second Bluetooth device from said group of Bluetooth devices when said first Bluetooth device comes within communication range of said second Bluetooth device; establishing a link key; storing the group Bluetooth device address and the link key; the first Bluetooth device exchanging Bluetooth device addresses with a third Bluetooth device from said group of Bluetooth devices when said first Bluetooth device comes within communication range of said third Bluetooth device; recognizing the group Bluetooth device address assigned to the third Bluetooth device; and establishing a communications channel between said first Bluetooth device and said third Bluetooth device based on said link key.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: March 7, 2017
    Assignee: BBPOS Limited
    Inventors: Chi Man Lau, Tai Kwan Jimmy Tang, Chi Wah Lo
  • Publication number: 20160350744
    Abstract: An apparatus for effecting commercial transactions with a server using a transaction card via a communication device is provided. The apparatus includes a transaction device coupled with the communication device for capturing information from the transaction card and a controller for converting the captured card information into an encrypted audio signal and for transmitting the audio signal to the communication device. The communication device delivers the audio signal to the server for processing the commercial transaction.
    Type: Application
    Filed: August 13, 2016
    Publication date: December 1, 2016
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages
  • Patent number: 9489548
    Abstract: A magnetic card reader module includes a magnetic sensor and an adjacent groove, a micro controller and an application. The magnetic sensor is configured to pick-up an analog magnetic signal generated by swiping a magnetic stripe through the groove. The magnetic stripe is attached to a card and comprises tracks with magnetically encoded data. The microcontroller is configured to convert the analog magnetic signal into a digital signal. The application is configured to analyze the digital signal, and to perform soft-decision decode of the digital signal and to generate an output comprising the magnetically encoded data and side information providing card swipe information feedback.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: November 8, 2016
    Assignee: BBPOS LIMITED
    Inventors: Chi Wah Lo, Hwai Sian Tsai
  • Patent number: 9443239
    Abstract: An apparatus for effecting commercial transactions with a server using a transaction card via a communication device is provided. The apparatus includes a transaction device coupled with the communication device for capturing information from the transaction card and a controller for converting the captured card information into an encrypted audio signal and for transmitting the audio signal to the communication device. The communication device delivers the audio signal to the server for processing the commercial transaction.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: September 13, 2016
    Assignee: 4361423 Canada Inc.
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages
  • Publication number: 20160247001
    Abstract: A system for a secure display module includes a display element array, a driver controller, a communication interface, a host controller and a cryptographic engine. The display element array includes one or more segments, and the driver outputs are configured to drive the one or more segments, respectively. The host controller is configured to send commands and data to the driver controller via the communication interface and the cryptographic engine is configured to encrypt communication data between the display element array and the host controller.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 25, 2016
    Inventors: CHI WAH LO, HWAI SIAN TSAI
  • Publication number: 20160227358
    Abstract: A mobile device includes a Bluetooth transceiver, the Bluetooth transceiver being in an idle power state when not securely paired to a second Bluetooth transceiver of a peripheral device. The mobile device further includes an audio interface, the audio interface coupled to the Bluetooth transceiver, the audio interface configured to connect to a second audio interface of the peripheral device.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 4, 2016
    Inventor: Chi Wah Lo
  • Publication number: 20160196546
    Abstract: An apparatus for commercial transactions using a transaction card via a communication device in audio communication with a remote processor assembly is provided. The apparatus comprises an input device for capturing information from the transaction card, a controller for converting the captured card information into an audio signal. The controller is linked to the communication device. The apparatus may also be part of an assembly wherein this controller is part of the communication device. The remote processor assembly includes a transaction server linked to a remote processor/issuer for validating the transaction card data. A system including this apparatus, the communication device and the transaction server is also provided. Methods therefore are also disclosed.
    Type: Application
    Filed: March 14, 2016
    Publication date: July 7, 2016
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages
  • Patent number: 9362689
    Abstract: A circuit for detecting the position of the signal MIC-IN and GND on the audio plug of a mobile phone includes two comparators and two switches. The comparators compare the voltage difference between the two contact points representing MIC-IN and GND of the audio plug of a mobile phone, and through this comparison the ground signal of the mobile phone is identified. The circuit then connects the ground of the accessory and the mobile phone properly, by activating the appropriate switch.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: June 7, 2016
    Assignee: BBPOS LIMITED
    Inventors: Chi Wah Lo, Hwai Sian Tsai, Ka Leong Tony Tsang
  • Patent number: 9344185
    Abstract: A system of securely paired Bluetooth devices includes a host device and a peripheral device, where each device includes an audio interface and a Bluetooth transceiver. The host device and the peripheral device connect to each other by physically connecting their corresponding audio interfaces and communicate with each other by establishing an out-of-band audio communication channel via the connected audio interfaces. The host device and the peripheral device exchange Bluetooth authentication data via the out-of-band audio communication channel, and then are securely paired with each other by turning on and initializing the corresponding Bluetooth transceivers with the corresponding exchanged Bluetooth authentication data.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: May 17, 2016
    Assignee: BBPOS LIMITED
    Inventor: Chi Wah Lo
  • Patent number: 9311637
    Abstract: An apparatus for effecting commercial transactions with a server using a transaction card via a communication device is provided. The apparatus includes a transaction device coupled with the communication device for capturing information from the transaction card and a controller for converting the captured card information into an encrypted audio signal and for transmitting the audio signal to the communication device. The communication device delivers the audio signal to the server for processing the commercial transaction.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: April 12, 2016
    Assignee: 4361423 Canada Inc.
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages
  • Patent number: 9269084
    Abstract: An apparatus for effecting commercial transactions with a server using a transaction card via a communication device is provided. The apparatus includes a transaction device coupled with the communication device for capturing information from the transaction card and a controller for converting the captured card information into an encrypted audio signal and for transmitting the audio signal to the communication device. The communication device delivers the audio signal to the server for processing the commercial transaction.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: February 23, 2016
    Assignee: 4361423 Canada Inc.
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages
  • Patent number: 9264228
    Abstract: A system for a secure display module includes a display element array, a driver controller, a communication interface, a host controller and a cryptographic engine. The display element array includes one or more segments, and the driver outputs are configured to drive the one or more segments, respectively. The host controller is configured to send commands and data to the driver controller via the communication interface and the cryptographic engine is configured to encrypt communication data between the display element array and the host controller.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: February 16, 2016
    Assignee: BBPOS Limited
    Inventors: Chi Wah Lo, Hwai Sian Tsai
  • Publication number: 20150371218
    Abstract: An apparatus for commercial transactions using a transaction card via a communication device in audio communication with a remote processor assembly is provided. The apparatus comprises an input device for capturing information from the transaction card, a controller for converting the captured card information into an audio signal. The controller is linked to the communication device. The apparatus may also be part of an assembly wherein this controller is part of the communication device. The remote processor assembly includes a transaction server linked to a remote processor/issuer for validating the transaction card data. A system including this apparatus, the communication device and the transaction server is also provided. Methods therefore are also disclosed.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 24, 2015
    Inventors: Tai Kwan Jimmy Tang, Chi Wah Lo, Kenneth G. Mages