Patents by Inventor Thomas Suwald

Thomas Suwald 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: 10579851
    Abstract: According to a first aspect of the present disclosure, a fingerprint processing system is provided, which comprises: a set of sensor plates; a measurement unit configured to measure one or more capacitances on the sensor plates; a processing unit configured to process the measured capacitances; wherein the measurement unit is configured to concurrently measure capacitances on subsets of the set of sensor plates; wherein the processing unit is configured to process the concurrently measured capacitances. According to a second aspect of the present disclosure, a corresponding method of processing a fingerprint in a fingerprint processing system is conceived. According to a third aspect of the present disclosure, a corresponding computer program is provided.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: March 3, 2020
    Assignee: NXP B. V.
    Inventor: Thomas Suwald
  • Publication number: 20200004947
    Abstract: In accordance with a first aspect of the present disclosure, an authentication token is provided, comprising: a communication unit for contactless communication between the token and an external device; an energy storage unit for storing energy; a biometric capturing unit for capturing at least one biometric sample; a processing unit for processing the biometric sample captured by the biometric capturing unit; wherein the token further comprises a synchronization unit configured to: determine a communication status of the communication unit; determine a power supply capability of the energy storage unit; adjust a processing speed of the processing unit in dependence on said communication status and said power supply capability. In accordance with a second aspect of the present disclosure, a corresponding method of operating an authentication token is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
    Type: Application
    Filed: June 24, 2019
    Publication date: January 2, 2020
    Inventor: Thomas Suwald
  • Patent number: 10503957
    Abstract: According to a first aspect of the present disclosure, a fingerprint authentication system is provided, comprising: a transformation unit configured to transform a first format of a captured fingerprint into a second format of the captured fingerprint, wherein the first format defines coordinates of minutia positions and the second format defines relative positions of minutiae; and an authentication unit configured to compare the relative positions with stored reference values. According to a second aspect of the present disclosure, a corresponding fingerprint authentication method is conceived. According to a third aspect of the present disclosure, a corresponding computer program product is provided.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: December 10, 2019
    Assignee: NXP B.V.
    Inventors: Thomas Suwald, Arne Burghardt
  • Patent number: 10482306
    Abstract: According to a first aspect of the present disclosure, a fingerprint sensing system is provided, comprising: a sensing unit configured to measure a physical property of a sensing cell and to produce a voltage in dependence on said physical property; and an analog-to-digital converter configured to convert said voltage into a digital signal, wherein said analog-to-digital converter implements a non-linear conversion function. According to a second aspect of the present disclosure, a corresponding fingerprint sensing method is conceived. According to a third aspect of the present disclosure, a corresponding computer program product is provided.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: November 19, 2019
    Assignee: NXP B.V.
    Inventor: Thomas Suwald
  • Patent number: 10482058
    Abstract: In accordance with a first aspect of the present disclosure, a biometric sensing system is provided, comprising: a sensor module configured to generate sensing data; a processing unit configured to process data received from said sensor module; wherein the sensor module and the processing unit are communicatively coupled to each other via a universal synchronous asynchronous receiver transmitter (USART) communication interface. In accordance with a second aspect of the present disclosure, a corresponding communication method is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: November 19, 2019
    Assignee: NXP B.V.
    Inventors: Thomas Suwald, Arne Burghardt, Tobias Voigt
  • Publication number: 20190325172
    Abstract: In accordance with a first aspect of the present disclosure, a method for providing a code pattern which is readable by a sensor is conceived, the method comprising: defining a plurality of coding positions as a subset of positions in a two-dimensional matrix; including in said subset a plurality of positions which are diagonally adjacent to each other; selectively creating coding marks, such as coding dots, at the coding positions. In accordance with a second aspect of the present disclosure, a corresponding code pattern is provided.
    Type: Application
    Filed: March 22, 2019
    Publication date: October 24, 2019
    Inventor: Thomas Suwald
  • Patent number: 10444268
    Abstract: In accordance with a first aspect of the present disclosure, a sensor system comprising a processing unit and an array of sensor elements, wherein the processing unit is configured to: identify mutually different sets of sensor elements within the array and step sequentially through said sets; identify mutually different subsets of sensor elements within said sets and step sequentially through said subsets; concurrently sample the sensor elements within said subsets. In accordance with a second aspect of the present disclosure, a corresponding sensing method is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: October 15, 2019
    Assignee: NXP B.V.
    Inventor: Thomas Suwald
  • Publication number: 20190286868
    Abstract: In accordance with a first aspect of the present disclosure, a fingerprint sensing device is provided, comprising: a substrate; a fingerprint sensor placed on one side of the substrate; a coupling electrode placed on another side of the substrate, wherein said coupling electrode is arranged to provide a coupling capacitance between a surface of a finger and a circuit ground of said fingerprint sensor. In accordance with a second aspect of the present disclosure, a corresponding method of producing a fingerprint sensing device is conceived.
    Type: Application
    Filed: March 9, 2019
    Publication date: September 19, 2019
    Inventor: Thomas Suwald
  • Publication number: 20190272363
    Abstract: In accordance with a first aspect of the present disclosure, a user authentication system is provided, comprising: a user authentication token, said user authentication token comprising a fingerprint sensor and a secure element; an assistance device configured to be coupled to the user authentication token through an interface of said user authentication token; wherein the assistance device is configured to request the secure element to verify a personal unlock key to be captured by the secure element through the fingerprint sensor; wherein the secure element is configured to capture the personal unlock key through the fingerprint sensor, to verify the captured personal unlock key and to enroll, upon or after a positive verification of the personal unlock key, fingerprint reference data captured through the fingerprint sensor. In accordance with a second aspect of the present disclosure, a corresponding method for enrolling fingerprint reference data in a user authentication token is conceived.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 5, 2019
    Inventor: Thomas Suwald
  • Patent number: 10404694
    Abstract: There is disclosed a mobile device comprising a processing unit for executing a host application, a user-interactive display and an authentication unit; wherein the authentication unit is arranged to receive an authentication request from the host application; wherein the authentication unit is arranged to cause the display to show a set of pictures in response to receiving the authentication request; wherein the authentication unit is further arranged to identify a selection of at least one picture from said set of pictures; and wherein the authentication unit is further arranged to initiate a verification of said identified selection. Furthermore, a corresponding method of authenticating a user is disclosed, as well as a corresponding computer program, an article of manufacture and a display.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 3, 2019
    Assignee: NXP B.V.
    Inventor: Thomas Suwald
  • Patent number: 10386398
    Abstract: According to a first aspect of the present disclosure, an electronic device is provided which comprises: a substrate; an integrated circuit; a layer of conductive glue between the substrate and the integrated circuit; at least one first electrode connected to the conductive glue and at least one second electrode connected to the conductive glue; wherein the first electrode and the second electrode are arranged to receive a voltage generator input, such that a capacitance develops between said first electrode and second electrode, wherein at least a part of said capacitance develops through the layer of conductive glue; and wherein the first electrode and the second electrode are arranged to output said capacitance. According to a second aspect of the present disclosure, a corresponding method of manufacturing an electronic device is conceived.
    Type: Grant
    Filed: October 8, 2016
    Date of Patent: August 20, 2019
    Assignee: NXP B.V.
    Inventor: Thomas Suwald
  • Patent number: 10372965
    Abstract: It is described an arrangement (560, 660, 760) for fingerprint sensing/verification, comprising: a sensor system (100) comprising plural sensor capacitors (101), each sensor capacitor including a central electrode (103) and a peripheral electrode (105) annularly surrounding the central electrode and being connected to a ground potential; wherein changes of the electric fields between each of the central electrode and the peripheral electrode of the plural sensor capacitors upon positioning a finger (317) close to the sensor system is used to detect the fingerprint.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: August 6, 2019
    Assignee: NXP B.V.
    Inventor: Thomas Suwald
  • Patent number: 10372966
    Abstract: According to a first aspect of the present disclosure, a fingerprint sensing system is provided, comprising: at least one sensing element configured and arranged to generate a sensing characteristic; a detection unit configured and arranged to detect changes of said sensing characteristic over time; a processing unit configured and arranged to determine if the changes of said sensing characteristic substantially conform to a predefined liveness function. According to a second aspect of the present disclosure, a corresponding fingerprint sensing method is conceived. According to a third aspect of the present disclosure, a corresponding computer program product is provided.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: August 6, 2019
    Assignee: NXP B.V.
    Inventors: Thomas Suwald, Arne Burghardt
  • Patent number: 10372283
    Abstract: According to a first aspect of the present disclosure, an electronic device for use in a touch-based user interface is provided, the electronic device comprising a first capacitor, a second capacitor, a third capacitor, and an analog-to-digital converter, wherein: the first capacitor and the second capacitor are switchably coupled to each other; the first capacitor is switchably coupled to an input of the analog-to-digital converter; the second capacitor is coupled to the input of the analog-to-digital converter; the third capacitor is coupled to the first capacitor; the third capacitor is switchably coupled to the second capacitor; the third capacitor is switchably coupled to the input of the analog-to-digital converter. According to a second aspect of the present disclosure, a corresponding method of manufacturing an electronic device for use in a touch-based user interface is conceived.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: August 6, 2019
    Assignee: NXP B.V.
    Inventor: Thomas Suwald
  • Publication number: 20190213375
    Abstract: In accordance with a first aspect of the present disclosure, a fingerprint sensing device is provided, comprising a plurality of sensor cells, wherein each sensor cell comprises: at least one sense plate and a discharge electrode insulated from the sense plate; a first discharge path for discharging a first static electricity charge to a first electric potential terminal; a second discharge path for discharging a second static electricity charge to a second electric potential terminal; a charge reservoir coupled between the first electric potential terminal and the second electric potential terminal. In accordance with a second aspect of the present disclosure, a corresponding method of producing a fingerprint sensing device is conceived.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 11, 2019
    Inventors: Thomas Suwald, Milind Phadtare, Dillip Kumar Routray
  • Patent number: 10325120
    Abstract: According to a first aspect of the present disclosure, an electronic device is provided which comprises: a substrate; an integrated circuit; a layer of glue between the substrate and the integrated circuit; a set of driving electrodes coupled to the glue and to the integrated circuit; a receiving electrode coupled to the glue and to the integrated circuit; a counter electrode coupled to the glue and to the substrate; wherein the glue comprises conductive particles which electrically connect the receiving electrode, the counter electrode and at least a part of the set of driving electrodes, such that, if drive currents are provided to said set of driving electrodes, at least a part of the drive currents flows to the receiving electrode through the conductive particles and the counter electrode. According to a second aspect of the present disclosure, a corresponding method of manufacturing an electronic device is conceived.
    Type: Grant
    Filed: January 14, 2017
    Date of Patent: June 18, 2019
    Assignee: NXP B.V.
    Inventor: Thomas Suwald
  • Patent number: 10198110
    Abstract: It is disclosed a touch sensor (100,200,300,400,500,700) for sensing a user touch, comprising an electrically conductive structure (101) having an electrically conductive touch area (103) exposed to the environment; a first capacitor (115) having a first electrode (117) electrically connected with the conductive structure (101); a second capacitor (119) having a first electrode (121) connected to a second electrode (123) of the first capacitor (115); and a driver arrangement (125) connected to the first capacitor and the second capacitor and adapted to perform particular operation steps.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: February 5, 2019
    Assignee: NXP B.V.
    Inventors: Thomas Suwald, Arne Burghardt
  • Publication number: 20190034378
    Abstract: In accordance with a first aspect of the present disclosure, a biometric sensing system is provided, comprising: a sensor module configured to generate sensing data; a processing unit configured to process data received from said sensor module; wherein the sensor module and the processing unit are communicatively coupled to each other via a universal synchronous asynchronous receiver transmitter (USART) communication interface. In accordance with a second aspect of the present disclosure, a corresponding communication method is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 31, 2019
    Inventors: Thomas Suwald, Arne Burghardt, Tobias Voigt
  • Publication number: 20190020462
    Abstract: In accordance with a first aspect of the present disclosure, a biometric sensing system is provided, comprising a sensor module; a processing unit communicatively coupled to the sensor module; wherein the sensor module and the processing unit are configured to communicate with each other in a half-duplex mode of communication. In accordance with a second aspect of the present disclosure, a method of communicating between a sensor module and a processing unit in a biometric sensing system is conceived, wherein the sensor module and the processing unit communicate with each other in a half-duplex mode of communication. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 17, 2019
    Inventor: Thomas Suwald
  • Publication number: 20180330138
    Abstract: According to a first aspect of the present disclosure, a fingerprint sensor module is provided, comprising: an assembly comprising a substrate and a fingerprint sensor mounted on one side of the substrate; wherein the fingerprint sensor comprises a set of sensor elements and a measurement unit; and wherein the measurement unit is configured to concurrently measure capacitances on subsets of the set of sensor elements. According to a second aspect of the present disclosure, a corresponding method of producing a fingerprint sensor module is conceived.
    Type: Application
    Filed: May 12, 2018
    Publication date: November 15, 2018
    Inventor: Thomas Suwald