Patents Assigned to Madentec Limited
  • Patent number: 8325141
    Abstract: A touch sensitive surface having touch-capacitive and vibration sensors. This surface allows the user to rest their fingers on the keys and type as they would on a regular keyboard. As the user places their fingers on the keys, the touch capacitive sensors (one per key) report the signal strength level of each key touched to a processor, but no keystroke is issued by the processor until a corresponding “tap” (ie. vibration) is detected. When a tap is detected, the processor references the status of the touch capacitance sensors before, during, and/or immediately after the moment in time the tap occurred.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: December 4, 2012
    Assignee: Madentec Limited
    Inventor: Randal J. Marsden
  • Publication number: 20090073128
    Abstract: A touch sensitive surface having touch-capacitive and vibration sensors. This surface allows the user to rest their fingers on the keys and type as they would on a regular keyboard. As the user places their fingers on the keys, the touch capacitive sensors (one per key) report the signal strength level of each key touched to a processor, but no keystroke is issued by the processor until a corresponding “tap” (ie. vibration) is detected. When a tap is detected, the processor references the status of the touch capacitance sensors before, during, and/or immediately after the moment in time the tap occurred.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 19, 2009
    Applicant: MADENTEC LIMITED
    Inventor: Randal J. Marsden