Patents by Inventor Keung Kwok KWAN

Keung Kwok KWAN 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: 10635236
    Abstract: Methods and associated processing systems are disclosed for acquiring gain mismatch values and offset mismatch values corresponding to a plurality of analog-to-digital converters (ADCs). One method comprises coupling receiver circuitry of a processing system with a capacitive sensor comprising a plurality of sensor electrodes, the receiver circuitry comprising a plurality of ADCs, each ADC of the plurality of ADCs coupled with one or more respective sensor electrodes of the plurality of sensor electrodes. The method further comprises, while at least a portion of transmitter circuitry of the processing system is disabled, acquiring measurements using each ADC of the plurality of ADCs; and storing, using the acquired measurements, a plurality of offset mismatch values in a memory of the processing system. The processing system is operable to apply the plurality of offset mismatch values to capacitive measurements acquired using the plurality of ADCs.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: April 28, 2020
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Eric Scott Bohannon, Steve Chikin Lo, Keung Kwok Kwan
  • Publication number: 20190034027
    Abstract: Methods and associated processing systems are disclosed for acquiring gain mismatch values and offset mismatch values corresponding to a plurality of analog-to-digital converters (ADCs). One method comprises coupling receiver circuitry of a processing system with a capacitive sensor comprising a plurality of sensor electrodes, the receiver circuitry comprising a plurality of ADCs, each ADC of the plurality of ADCs coupled with one or more respective sensor electrodes of the plurality of sensor electrodes. The method further comprises, while at least a portion of transmitter circuitry of the processing system is disabled, acquiring measurements using each ADC of the plurality of ADCs; and storing, using the acquired measurements, a plurality of offset mismatch values in a memory of the processing system. The processing system is operable to apply the plurality of offset mismatch values to capacitive measurements acquired using the plurality of ADCs.
    Type: Application
    Filed: July 26, 2017
    Publication date: January 31, 2019
    Inventors: Eric Scott BOHANNON, Steve Chikin LO, Keung Kwok KWAN