• Patent Title: Fingerprint sensing system and method
  • Application No.: US15820405
    Application Date: 2017-11-21
  • Publication No.: US10579850B2
    Publication Date: 2020-03-03
  • Inventor: Thomas Suwald
  • Applicant: NXP B.V.
  • Applicant Address: NL Eindhoven
  • Assignee: NXP B.V.
  • Current Assignee: NXP B.V.
  • Current Assignee Address: NL Eindhoven
  • Priority: EP16200439 20161124
  • Main IPC: G06K9/00
  • IPC: G06K9/00
Fingerprint sensing system and method
Abstract:
According to a first aspect of the present disclosure, a fingerprint sensing system is provided, the system comprising: a plurality of sensors and a controller, wherein the controller is configured to selectively activate at least one of the plurality of sensors; wherein the controller is further configured to develop and measure at least one first capacitance, the first capacitance developing in response to a capacitance between a surface of an active sensor and a surface of a finger; and wherein the controller is further configured to develop at least one second capacitance, the second capacitance developing in response to a capacitance between a surface of an inactive sensor and the surface of the finger. According to a second aspect of the present disclosure, a corresponding fingerprint sensing method is conceived.
Public/Granted literature
Information query
Patent Agency Ranking
0/0