Patents by Inventor Axel Heim

Axel Heim 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: 20190272059
    Abstract: A sensor system combining first and second detection systems supplies drive signals to nodes A and B electrodes of these systems. A drive sequence consists of a repetition of an elementary acquisition cycle having two consecutive main phases with pre-charge and acquisition phases. During a first pre-charge phase, node A is driven to a first electrical potential for and during a first acquisition phase, to a first intermediate electrical potential, and node B is driven to a second electrical potential and thereafter switches node B into high-impedance at DC, and during a second pre-charge phase, node A is driven to a third electrical potential and, during a second acquisition phase, to a second intermediate electrical potential, and node B is driven to a fourth potential and thereafter switches node B into high-impedance at DC. The first and second detection systems perform an electrical measurement on node A and B, respectively.
    Type: Application
    Filed: February 25, 2019
    Publication date: September 5, 2019
    Applicant: Microchip Technology Incorporated
    Inventor: Axel Heim
  • Patent number: 10394332
    Abstract: A sensor arrangement for capacitive touch and non-touch detection has a transmission electrode and a predefined number of receiving electrodes coupled with an evaluation unit. The evaluation unit operates in a non-touch detection mode and in a touch detection mode, wherein the transmission electrode generates an alternating electric near field, and in the non-touch detection mode, the evaluation unit evaluates signals from the receiving electrodes to determine non-touch gestures or a three-dimensional position of an object. In the touch detection mode a surface touch detection area defined by the predefined number of electrodes is divided into a plurality of segments wherein within each segment at least two electrodes of the predefined number of electrodes contribute with a portion of their electrode surface area such that different electrode surface area ratios are formed for each of the plurality of segments.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: August 27, 2019
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventor: Axel Heim
  • Patent number: 10365722
    Abstract: A method for state tracking based gesture recognition engine for a sensor system has the steps of: defining a plurality of sequential states of a finite-state machine, determining a Sequence Progress Level (SPL) for each state, mapping a state probability distribution to a (single) SPL on run-time, and utilizing the mapped SPL estimate as an output value of the sensor system.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: July 30, 2019
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventor: Axel Heim
  • Patent number: 10345985
    Abstract: An input device has one or more electrodes configured for capacitive sensing, an electronic circuit, one or more conductive feed line(s) connecting the one or more electrode(s) with the electronic circuit, wherein the device is configured to increase or decrease a signal received from at least one of the electrodes through an associated feed line in function of at least one other signal from another electrode.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: July 9, 2019
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Lionel Portmann, Axel Heim, Andreas Dorfner, Claus Kaltner
  • Patent number: 10310656
    Abstract: A display device is provided that allows detecting contact positions (contact mode) and contactless detection of positions of a finger in front of the display device (non-contact mode). The display device includes a panel layer connected to a transparent electrode layer that is subdivided into a plurality of electrode segments that form a segment array. An interpretation circuitry coupled to the electrode segments switches between a contact mode state in which a contact detection is performed by the electrode segments, and a second state in which the contactless position or movement detection of the finger is performed in an area in front of the display device, wherein at least a part of the electrode segments are used for detection in both the contact mode and the non-contact mode, and wherein the contactless position or movement detection is performed by a grouped of the electrode segments in the segment array.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: June 4, 2019
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventors: Artem Ivanov, Axel Heim, Thomas Kandiziora
  • Publication number: 20190163323
    Abstract: A method for touch detection includes identifying a high-pass filtered sequence from a plurality of sensor measurements, accumulating a number of samples from a first high-pass filtered sequence into an accumulated value, comparing the first accumulated value against a threshold of accumulated values, and, based upon a determination whether the accumulated value is greater than the threshold of accumulated values, identify whether the sensor has been approached.
    Type: Application
    Filed: December 3, 2018
    Publication date: May 30, 2019
    Applicant: Microchip Technology Germany GmbH
    Inventors: Axel Heim, Joao Ferreira
  • Patent number: 10288657
    Abstract: A sensor device for detecting a number of objects, has a number of electrode configurations forming a sensor surface, each electrode configuration having a number of measurement electrodes and each electrode configuration being associated with at least one transmitter electrode, and an evaluation device coupled to the measurement electrodes and the transmitter electrodes, which is adapted for using a time multiplexing method for applying an alternating signal to one of the transmitter electrodes, and to apply a predetermined constant electrical potential to the remaining transmitter electrodes, and tapping an electrical signal indicating the position of the object relative to the sensor surface at the measurement electrodes associated with the transmitter electrode having the electrical alternating signal applied.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: May 14, 2019
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventors: Artem Ivanov, Axel Heim
  • Patent number: 10277203
    Abstract: A digital filter has an assigned filter function with assigned filter coefficients, an input receiving input samples, another input receiving confidence values, and an output. Each input sample value is associated to an input confidence value, wherein the filter output depends on the input samples, the input confidence values as well as the filter coefficients. The filter contains multiple accumulators, wherein an output sample is produced after a predetermined number of sample values wherein associated confidence values have been input to the filter.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 30, 2019
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventors: Axel Heim, Martin Hoch
  • Patent number: 10234990
    Abstract: A position tracking system may include a processor and a memory coupled to the processor. The memory may include instructions that, when loaded and executed by the processor, cause the processor to receive a plurality of measurements from a sensor and map a location of an object to a measurement using movement models. The mapping may be based upon a cost computed from movement models, the measurement, and the location.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 19, 2019
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Martin Hoch, João Ferreira, Axel Heim
  • Patent number: 10146371
    Abstract: A method for touch detection includes identifying a high-pass filtered sequence from a plurality of sensor measurements, accumulating a number of samples from a first high-pass filtered sequence into an accumulated value, comparing the first accumulated value against a threshold of accumulated values, and, based upon a determination whether the accumulated value is greater than the threshold of accumulated values, identify whether the sensor has been approached.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: December 4, 2018
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Axel Heim, Joao Ferreira
  • Patent number: 10135424
    Abstract: A finite impulse response (FIR) digital filter has an assigned filter function with assigned filter coefficients, an input receiving input samples, another input receiving confidence information values, and an output. Each input sample value is associated to an input confidence value and the filter output depends on both the input samples and the input confidence values.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: November 20, 2018
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventors: Axel Heim, Martin Hoch
  • Publication number: 20180314338
    Abstract: A method for state tracking based gesture recognition engine for a sensor system has the steps of: defining a plurality of sequential states of a finite-state machine, determining a Sequence Progress Level (SPL) for each state, mapping a state probability distribution to a (single) SPL on run-time, and utilizing the mapped SPL estimate as an output value of the sensor system.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 1, 2018
    Applicant: Microchip Technology Germany GmbH
    Inventor: Axel Heim
  • Patent number: 9971442
    Abstract: A method for detecting a continuous circular gesture performed by an object, may have the steps of: detecting a movement of an object performing a circular movement by scanning the movement and determining subsequent position points of the object, wherein a reference position of a virtual circular movement is adapted depending on the history of scanned position points.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: May 15, 2018
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventors: Axel Heim, Joao Ferreira
  • Patent number: 9958953
    Abstract: A method for state tracking based gesture recognition engine for a sensor system has the steps of: defining a plurality of sequential states of a finite-state machine, determining a Sequence Progress Level (SPL) for each state, mapping a state probability distribution to a (single) SPL on run-time, and utilizing the mapped SPL estimate as an output value of the sensor system.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: May 1, 2018
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventor: Axel Heim
  • Patent number: 9927933
    Abstract: A system has a gesture detection device with a plurality of input channels and an output channel which uses an alternating electric near field generated through at least one transmission electrode coupled with the output channel, wherein some of the input channels are coupled with receiving electrodes of the gesture detection device. The system further has a plurality of touch electrodes, wherein the touch electrodes are coupled with one of the input channels by multiplexing.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: March 27, 2018
    Assignee: MICROCHIP TECHNOLOGY GERMANY GMBH
    Inventors: Axel Heim, Andreas Dorfner, Roland Aubauer
  • Publication number: 20170300173
    Abstract: A position tracking system may include a processor and a memory coupled to the processor. The memory may include instructions that, when loaded and executed by the processor, cause the processor to receive a plurality of measurements from a sensor and map a location of an object to a measurement using movement models. The mapping may be based upon a cost computed from movement models, the measurement, and the location.
    Type: Application
    Filed: September 28, 2016
    Publication date: October 19, 2017
    Applicant: Microchip Technology Incorporated
    Inventors: Martin Hoch, Joäo Ferreira, Axel Heim
  • Publication number: 20170293362
    Abstract: A sensor arrangement for capacitive touch and non-touch detection has a transmission electrode and a predefined number of receiving electrodes coupled with an evaluation unit. The evaluation unit operates in a non-touch detection mode and in a touch detection mode, wherein the transmission electrode generates an alternating electric near field, and in the non-touch detection mode, the evaluation unit evaluates signals from the receiving electrodes to determine non-touch gestures or a three-dimensional position of an object. In the touch detection mode a surface touch detection area defined by the predefined number of electrodes is divided into a plurality of segments wherein within each segment at least two electrodes of the predefined number of electrodes contribute with a portion of their electrode surface area such that different electrode surface area ratios are formed for each of the plurality of segments.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Applicant: Microchip Technology Germany GmbH
    Inventor: Axel Heim
  • Publication number: 20170285866
    Abstract: A method for touch detection includes identifying a high-pass filtered sequence from a plurality of sensor measurements, accumulating a number of samples from a first high-pass filtered sequence into an accumulated value, comparing the first accumulated value against a threshold of accumulated values, and, based upon a determination whether the accumulated value is greater than the threshold of accumulated values, identify whether the sensor has been approached.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Applicant: Microchip Technology Germany GmbH
    Inventors: Axel Heim, Joao Ferreira
  • Publication number: 20170269741
    Abstract: An input device has one or more electrodes configured for capacitive sensing, an electronic circuit, one or more conductive feed line(s) connecting the one or more electrode(s) with the electronic circuit, wherein the device is configured to increase or decrease a signal received from at least one of the electrodes through an associated feed line in function of at least one other signal from another electrode.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 21, 2017
    Applicant: Microchip Technology Incorporated
    Inventors: Lionel Portmann, Axel Heim, Andreas Dorfner, Claus Kaltner
  • Publication number: 20170235475
    Abstract: A method for detecting a continuous circle gesture, has the following steps: receiving vectors representative of an object movement by a object detection unit; determining from the received sequence velocity vectors a sequence of velocity vectors or an approximation thereof; estimating an angle between subsequent velocity vectors; and determining a rotation direction.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Applicant: Microchip Technology Incorporated
    Inventor: Axel Heim