Patents by Inventor Turo Keski-Jaskari

Turo Keski-Jaskari 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).

  • Publication number: 20210247860
    Abstract: It is an object to provide an electronic device for sensing and/or for providing a haptic effect. According to an embodiment, a device comprises a touch surface; a piezoelectric transducer mechanically coupled to the touch surface; and a control circuitry electrically coupled to the piezoelectric transducer, configured to: obtain at least one parameter describing a reference response of the piezoelectric transducer; form a reference voltage curve based on the at least one parameter; drive the piezoelectric transducer with a driving voltage; measure a voltage curve over the piezoelectric transducer; compare the reference voltage curve and the measured voltage curve; and detect a touch on the touch surface based on the comparison. A device, a method, and a computer program product are provided.
    Type: Application
    Filed: February 9, 2021
    Publication date: August 12, 2021
    Inventor: Turo Keski-Jaskari
  • Patent number: 11068061
    Abstract: It is an object to provide a device for estimating the equivalent input voltage of a boost converter. According to a first aspect, a device is configured to apply a switching signal to a boost converter, wherein the boost converter is configured to provide a voltage for a haptic feedback element; wait for at least one time interval; measure at least one voltage on an output side of the boost converter; and estimate an equivalent input voltage of the boost converter based on the at least one measured voltage, wherein the equivalent input voltage represents a physical input voltage that would cause the at least one measured voltage in reference conditions. A device, a method, and a computer program are described.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: July 20, 2021
    Assignee: AITO BV
    Inventors: Davide La Groce, Turo Keski-Jaskari
  • Patent number: 10852834
    Abstract: A haptic signalizing device includes a number of piezoelectric elements arranged below a device surface such that mechanical deformations caused by the converse piezoelectric effect in the at least one piezoelectric element make the device surface to move such that the device surface follows the piezoelectric element. A driving circuit causes the converse the piezoelectric effect on the at least one piezoelectric element by generating an alternating electric field over the piezoelectric element in a bipolar fashion. The piezoelectric element is arranged i) to locally move the device surface inwards when the mechanical deformation in the piezoelectric element is a deflection directed away from the device surface, and ii) to locally move the device surface outwards when the mechanical deformation in the piezoelectric element is a deflection that is directed towards the device surface.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: December 1, 2020
    Assignee: AITO BV
    Inventors: Jukka Riihiaho, Turo Keski-Jaskari
  • Publication number: 20200371594
    Abstract: It is an object to provide a device for estimating the equivalent input voltage of a boost converter. According to a first aspect, a device is configured to apply a switching signal to a boost converter, wherein the boost converter is configured to provide a voltage for a haptic feedback element; wait for at least one time interval; measure at least one voltage on an output side of the boost converter; and estimate an equivalent input voltage of the boost converter based on the at least one measured voltage, wherein the equivalent input voltage represents a physical input voltage that would cause the at least one measured voltage in reference conditions. A device, a method, and a computer program are described.
    Type: Application
    Filed: December 11, 2018
    Publication date: November 26, 2020
    Applicant: AITO BV
    Inventors: Davide LA GROCE, Turo KESKI-JASKARI
  • Patent number: 10761638
    Abstract: A detection of piezoelectric sensor elements is provided. According to a first aspect, a device comprises: a matrix of piezoelectric sensor elements comprising rows of the piezoelectric sensor elements and columns of the piezoelectric sensor elements; measuring circuits configured to detect at least one touch, wherein the measuring circuits are configured to the rows and to the columns; and a wake-up trigger configured to detect the at least one touch and further configured to trigger the matrix to an operation mode when the at least one touch is detected. The device is configured for detecting a press event of a plurality of piezoelectric sensor elements, using, for example only a single activity detecting and touch recognition circuit. Complexity and energy consumption may be reduced.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: September 1, 2020
    Assignee: Aito BV
    Inventors: Turo Keski-Jaskari, Jukka Riihiaho
  • Publication number: 20200026356
    Abstract: A haptic signalizing device includes a number of piezoelectric elements arranged below a device surface such that mechanical deformations caused by the converse piezoelectric effect in the at least one piezoelectric element make the device surface to move such that the device surface follows the piezoelectric element. A driving circuit causes the converse the piezoelectric effect on the at least one piezoelectric element by generating an alternating electric field over the piezoelectric element in a bipolar fashion. The piezoelectric element is arranged i) to locally move the device surface inwards when the mechanical deformation in the piezoelectric element is a deflection directed away from the device surface, and ii) to locally move the device surface outwards when the mechanical deformation in the piezoelectric element is a deflection that is directed towards the device surface.
    Type: Application
    Filed: February 5, 2018
    Publication date: January 23, 2020
    Applicant: AITO BV
    Inventors: Jukka RIIHIAHO, Turo KESKI-JASKARI
  • Publication number: 20190179472
    Abstract: A detection of piezoelectric sensor elements is provided. According to a first aspect, a device comprises: a matrix of piezoelectric sensor elements comprising rows of the piezoelectric sensor elements and columns of the piezoelectric sensor elements; measuring circuits configured to detect at least one touch, wherein the measuring circuits are configured to the rows and to the columns; and a wake-up trigger configured to detect the at least one touch and further configured to trigger the matrix to an operation mode when the at least one touch is detected. The device is configured for detecting a press event of a plurality of piezoelectric sensor elements, using, for example only a single activity detecting and touch recognition circuit. Complexity and energy consumption may be reduced.
    Type: Application
    Filed: June 9, 2017
    Publication date: June 13, 2019
    Applicant: Aito BV
    Inventors: Turo KESKI-JASKARI, Jukka RIIHIAHO
  • Patent number: 9880663
    Abstract: A piezoelectric sensor with configurable sensitivity thresholds in response to at least one sensitivity threshold command received from a host (28) over a serial data bus (27).
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: January 30, 2018
    Assignee: AITO INTERACTIVE OY
    Inventor: Turo Keski-Jaskari
  • Patent number: 9735339
    Abstract: A piezoelectric device comprises at least one element comprising at least one sheet of piezoelectric material. The element is mounted on a circuit board comprising at least one conductive layer having at least one opening. The element is located on the opening and supported by edges of the opening in such a manner that the opening extends laterally beyond the area of the sheet of piezoelectric material. The element is sandwiched between an overlay and the circuit board in such a manner that vibrations of the sheet of piezoelectric material are sufficient to cause vibration of the overlay.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: August 15, 2017
    Assignee: AITO B.V.
    Inventors: Jockum Lönnberg, Vesa Korhonen, Turo Keski-Jaskari
  • Publication number: 20150378514
    Abstract: A piezoelectric sensor with configurable sensitivity thresholds in response to at least one sensitivity threshold command received from a host (28) over a serial data bus (27).
    Type: Application
    Filed: February 20, 2013
    Publication date: December 31, 2015
    Inventor: Turo Keski-Jaskari
  • Publication number: 20150091414
    Abstract: A piezoelectric device comprises at least one element comprising at least one sheet of piezoelectric material. The element is mounted on a circuit board comprising at least one conductive layer having at least one opening. The element is located on the opening and supported by edges of the opening in such a manner that the opening extends laterally beyond the area of the sheet of piezoelectric material. The element is sandwiched between an overlay and the circuit board in such a manner that vibrations of the sheet of piezoelectric material are sufficient to cause vibration of the overlay.
    Type: Application
    Filed: May 8, 2013
    Publication date: April 2, 2015
    Inventors: Jockum Lönnberg, Vesa Korhonen, Turo Keski-Jaskari
  • Patent number: 7816838
    Abstract: A system and method for measuring absolute pressure applied to a piezoelectric element by measuring a transition time of a voltage pulse applied to a piezoelectric element. The transition time (such as the rise time and/or fall time of the voltage pulse) is affected by the capacitance of the piezoelectric element, which in turn is affected by the amount of pressure currently being applied to the piezoelectric element. The system may also provide haptic feedback via the same piezoelectric element.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 19, 2010
    Assignee: Nokia Corporation
    Inventors: Miikka Leskinen, Jukka Jalkanen, Turo Keski-Jaskari
  • Publication number: 20100234074
    Abstract: A telephone keypad (10) emulation system for emulating data entry of a telephone keypad (10). The telephone keypad emulation system includes a first selector device (30) and a second selector device (32). The first selector device (30) has at least nine position settings (12) generally arranged in three rows (34, 36, 38) and three columns (40, 42, 44). The second selector device (32) includes a selection actuator adapted to be actuated by a user. The second selector device (32) is spaced from the first selector device (30). In a first mode of operation, a middle one of the position settings of the first selector device (30) has a number “5” as a selectable value. The selectable value of the position settings of the first selector device (30) is only selected when the selection actuator of the second selector device (32) is actuated by the user while the first selector device (30) is at that position setting.
    Type: Application
    Filed: October 2, 2006
    Publication date: September 16, 2010
    Applicant: NOKIA CORPORATION
    Inventor: Turo Keski-Jaskari
  • Patent number: 7710405
    Abstract: A capacitive keypad and/or touchpad construction includes a flexible or rigid printed circuit board and a non-conductive keypad/touchpad top surface layer. A semi-conductive adhesive layer in between said flexible or rigid printed circuit board and said non-conductive keypad/touchpad top surface layer serves both to connect the top surface layer to the printed circuit board and to act as capacitive sensing layer.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: May 4, 2010
    Assignee: Nokia Corporation
    Inventor: Turo Keski-Jaskari
  • Publication number: 20090146533
    Abstract: A system and method for measuring absolute pressure applied to a piezoelectric element by measuring a transition time of a voltage pulse applied to a piezoelectric element. The transition time (such as the rise time and/or fall time of the voltage pulse) is affected by the capacitance of the piezoelectric element, which in turn is affected by the amount of pressure currently being applied to the piezoelectric element. The system may also provide haptic feedback via the same piezoelectric element.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 11, 2009
    Applicant: Nokia Corporation
    Inventors: Miikka Leskinen, Jukka Jalkanen, Turo Keski-Jaskari
  • Publication number: 20080171599
    Abstract: A gaming device for playing a game comprising: including detection means for detecting the occurrence of a specified event within a game while it is being played; and control means for changing the state of the gaming device from a first non-penalty state to a second, penalty state in response to the detection means detecting the occurrence of the specified event within the game and for returning the state of the gaming device from the second, penalty state to the first non-penalty state.
    Type: Application
    Filed: July 10, 2004
    Publication date: July 17, 2008
    Inventors: Antti Salo, Turo Keski-Jaskari
  • Publication number: 20080150912
    Abstract: A capacitive keypad and/or touchpad construction includes a flexible or rigid printed circuit board and a non-conductive keypad/touchpad top surface layer. A semi-conductive adhesive layer in between said flexible or rigid printed circuit board and said non-conductive keypad/touchpad top surface layer serves both to connect the top surface layer to the printed circuit board and to act as capacitive sensing layer.
    Type: Application
    Filed: December 26, 2006
    Publication date: June 26, 2008
    Inventor: Turo Keski-Jaskari
  • Publication number: 20080053272
    Abstract: A mechanical vibrator is provided. The vibrator includes a drive, a shaft connected to the drive, and a weight connected to the shaft. The drive is adapted to rotate the shaft and the shaft is adapted to bend during rotation.
    Type: Application
    Filed: August 18, 2006
    Publication date: March 6, 2008
    Inventors: Turo Keski-Jaskari, Matti Kosonen
  • Patent number: 7170428
    Abstract: The invention relates to an electronic device and a method of managing a virtual keyboard of the electronic device. The device comprises a touch pad (106), a processing unit (600) and a feedback unit (612), which provides tactile feedback unit (612) for the user. The processing unit (600) is configured to determine a virtual keyboard (104) for the touch pad (106) and a tactile appearance of the keyboard (104), receive information generated by the pressing of a keyboard (104) key and identify the key that was pressed on the basis of the information. The processing unit (600) is further configured to collect information on the key presses and carry out an analysis of them, and re-determine the tactile appearance of the keyboard (104) on the basis of the collected information and the analysis carried out so as to make the keyboard more ergonomic for the user, which makes it easier to use the keyboard (104) and/or the pressing of a wrong key less likely.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: January 30, 2007
    Assignee: Nokia Corporation
    Inventors: Johan Himberg, Jani Mäntyjärvi, Jonna Häkkilä, Turo Keski-Jaskari, Roope Takala
  • Publication number: 20050253816
    Abstract: The invention relates to an electronic device and a method of managing a virtual keyboard of the electronic device. The device comprises a touch pad (106), a processing unit (600) and a feedback unit (612), which provides tactile feedback unit (612) for the user. The processing unit (600) is configured to determine a virtual keyboard (104) for the touch pad (106) and a tactile appearance of the keyboard (104), receive information generated by the pressing of a keyboard (104) key and identify the key that was pressed on the basis of the information. The processing unit (600) is further configured to collect information on the key presses and carry out an analysis of them, and re-determine the tactile appearance of the keyboard (104) on the basis of the collected information and the analysis carried out so as to make the keyboard more ergonomic for the user, which makes it easier to use the keyboard (104) and/or the pressing of a wrong key less likely.
    Type: Application
    Filed: June 12, 2003
    Publication date: November 17, 2005
    Inventors: Johan Himberg, Jani Mantyjarvi, Jonna Hakkila, Turo Keski-Jaskari, Roope Takala