Patents by Inventor Dirk Schmid

Dirk Schmid 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: 11125868
    Abstract: A method and device for processing an echo signal received from an acoustic sensor. The echo signal is detected over a measurement time interval. A minimum value is ascertained, which describes a minimum amplitude of the echo signal within the measurement interval. An amplitude value is ascertained, which describes an amplitude of the echo signal within a measurement window. The measurement window is a predefined time interval within the measurement interval. A difference is ascertained between the minimum value and the amplitude value. A determination is made whether the echo signal comprises an interference signal of the first type or an interference signal of the second type, based on the ascertained difference.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: September 21, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Dirk Schmid, Michael Schumann
  • Patent number: 11086012
    Abstract: A method for operating an ultrasonic measuring device, encompassing the steps of receiving echo amplitudes, ascertaining object distances for the received echo amplitudes, computing normalized echo amplitudes for the received echo amplitudes, a received echo amplitude with a certain object distance being divided by a reference echo amplitude for the same or a similar object distance, encoding the normalized echo amplitudes, and transmitting the encoded echo amplitudes to a control unit. Also described is a related computer program, a system for carrying out the method, and a vehicle that includes a driving assistance system.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: August 10, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Albrecht Klotz, Dirk Schmid, Michael Schumann
  • Publication number: 20210131862
    Abstract: A sensor device, including a sensor having a sound transducer to emit sonic waves and convert received sonic waves to electrical signals. A sensor evaluation unit carries out surrounding-area monitoring during a normal operation of the sensor, by evaluating electrical signals of the sound transducer. During a monitoring mode of the sensor, a monitoring unit of the sensor device measures an impedance of the sound transducer for different excitation frequencies of excitation signals produced with a signal generator of the sensor device. The sensor device includes a first and a second signal path, which are each connected to the sound transducer and are connectable to the signal generator. To reset the sensor from normal operation to the monitoring mode, a first control unit of the sensor device is configured to decouple the signal generator from the first signal path and to connect it to the second signal path.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 6, 2021
    Inventors: Dirk Schmid, Karl-Heinz Richter, Martin Reiche, Michael Frank, Peter Preissler
  • Publication number: 20210125429
    Abstract: A sensor, including at least one transducer for emitting signals and for receiving reflected echo signals, the transducer being set up to output an analog measuring signal, an analog-to-digital converter for converting the analog measuring signal into a digital measuring signal, an evaluation unit for evaluating the digital measuring signal, and a communication unit for transmitting a measuring result of the evaluation via a digital communication interface. The communication unit is equipped to receive a request for diagnostic data via the digital communication interface, and is also equipped to switch the sensor to diagnostic operation and to transmit requested diagnostic data via the digital communication interface. The communication unit is set up to communicate with at least two different data rates via the digital communication interface, a higher data rate being used for transmitting the diagnostic data than for transmitting the measuring result during normal operation of the sensor.
    Type: Application
    Filed: May 7, 2018
    Publication date: April 29, 2021
    Inventors: Albrecht Klotz, Dirk Schmid, Michael Schumann, Thomas Treptow
  • Publication number: 20200284891
    Abstract: A method and device for processing an echo signal received from an acoustic sensor. The echo signal is detected over a measurement time interval. A minimum value is ascertained, which describes a minimum amplitude of the echo signal within the measurement interval. An amplitude value is ascertained, which describes an amplitude of the echo signal within a measurement window. The measurement window is a predefined time interval within the measurement interval. A difference is ascertained between the minimum value and the amplitude value. A determination is made whether the echo signal comprises an interference signal of the first type or an interference signal of the second type, based on the ascertained difference.
    Type: Application
    Filed: September 21, 2018
    Publication date: September 10, 2020
    Inventors: Dirk Schmid, Michael Schumann
  • Publication number: 20200072973
    Abstract: A method for operating an ultrasonic sensor is provided, a plurality of measuring cycles being consecutively carried out. In each measuring cycle, an electroacoustic transducer of the ultrasonic sensor is excited to carry out mechanical oscillations with the aid of an excitation pulse, whereby a measuring signal is transmitted by the transducer, an echo signal is received by the transducer, and a piece of object information is ascertained from the echo signal. The frequency profile of the excitation pulse differs in measuring cycles which are carried out chronologically consecutively, the frequency profile of an excitation pulse being selected in each measuring cycle randomly or according to a predefined sequence from a group of predefined frequency profiles.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 5, 2020
    Inventors: Dirk Schmid, Michael Schumann
  • Publication number: 20200057152
    Abstract: An operating method for an ultrasound transceiver device, where the ultrasound transceiver device is alternately and, in particular alternatingly operated in a transmit mode and in a receive mode; subsequently to a transmit mode and/or prior to a receive mode, the ultrasound transceiver device is actively damped by the action of a sequence of counter control pulses; a phase position and/or a damping energy are/is iteratively determined or adapted via a training by a measure of the damping success at least temporarily assuming or approaching an at least locally optimal value.
    Type: Application
    Filed: May 7, 2018
    Publication date: February 20, 2020
    Inventors: Michael Schumann, Dirk Schmid, Thomas Treptow
  • Publication number: 20200049817
    Abstract: An ultrasonic sensor device including a plurality of ultrasonic sensors and a control unit for operating the ultrasonic sensors, the control unit being configured to activate selectively either a first group of the ultrasonic sensors or a second group of the ultrasonic sensors at the same time, so that the activated ultrasonic sensors emit an ultrasonic signal, each ultrasonic sensor of the first group being situated adjacent to at least one ultrasonic sensor of the second group and each ultrasonic sensor of the second group being situated adjacent to at least one ultrasonic sensor of the first group, and the control unit being configured to operate adjacent active ultrasonic sensors using different frequency-modulated excitation patterns.
    Type: Application
    Filed: January 4, 2018
    Publication date: February 13, 2020
    Inventors: Dirk Schmid, Michael Schumann
  • Publication number: 20190369238
    Abstract: A method for operating an ultrasonic measuring device, encompassing the steps of receiving echo amplitudes, ascertaining object distances for the received echo amplitudes, computing normalized echo amplitudes for the received echo amplitudes, a received echo amplitude with a certain object distance being divided by a reference echo amplitude for the same or a similar object distance, encoding the normalized echo amplitudes, and transmitting the encoded echo amplitudes to a control unit. Also described is a related computer program, a system for carrying out the method, and a vehicle that includes a driving assistance system.
    Type: Application
    Filed: December 11, 2017
    Publication date: December 5, 2019
    Inventors: Albrecht Klotz, Dirk Schmid, Michael Schumann
  • Patent number: 10120073
    Abstract: A method for operating a surroundings-detection system of a vehicle includes at least one transceiver unit emitting a frequency-modulated signal and receiving echo signals of the emitted frequency-modulated signal. The received echo signals are associated with reflection sources, and a piece of information about the speed of the reflection source relative to the transceiver unit is ascertained on the basis of the received echo signals.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: November 6, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Michael Schumann, Marcus Schneider, Dirk Schmid
  • Patent number: 9958538
    Abstract: An ultrasonic transmission and reception device is described. This includes a transmission circuit for generating a transmission signal at its transmission outputs and, an ultrasonic transducer, which is suited for converting electrical signals into sound signals and sound signals into electrical signals, a transformer, the primary side of which is connected to the transmission outputs and of the transmission circuit and the secondary side of which is connected to the ultrasonic transducer, and a reception circuit for processing a received signal present at its reception input.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: May 1, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Karl-Heinz Richter, Dirk Schmid, David Bartylla
  • Patent number: 9910149
    Abstract: A method for mapping surroundings of a vehicle, objects in the surroundings of the vehicle being detected with the aid of sensors and particular detected objects being described by two coordinate points and also by a position fuzziness assigned to the particular coordinate point, the coordinate points and the position fuzziness values being stored in an interface in the form of data which may be accessed by driver assistance systems of the vehicle. A method is also described for ascertaining the collision probability of a vehicle with an object, in which the surroundings of the vehicle are initially mapped using the method for mapping the surroundings of a vehicle, a travel path to be traveled by the vehicle is ascertained in a subsequent step, and the degree of overlap between the object and the travel path and also the collision probability are finally determined, taking the position fuzziness into account.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: March 6, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Christian Pampus, Dirk Schmid, Michael Scherl, Werner Urban, Meike Fehse, Uwe Zimmermann, Michael Schoenherr
  • Patent number: 9557168
    Abstract: An ultrasonic measuring system is described for detecting an obstacle using a resonant transducer element for transmitting an ultrasonic pulse and for generating a received signal which includes the ultrasonic echo pulse reflected from the obstacle, the transducer element generating a decay signal having its resonance frequency after transmitting an ultrasonic pulse. The ultrasonic measuring system includes an evaluation unit having a control unit which is designed to activate the transducer element for transmitting the ultrasonic pulse with the aid of a frequency-modulated transmitted signal generated by the control unit, the frequency modulation taking place with the aid of a modulation signal in such a way that the signature of the ultrasonic pulse differs from that of the decay signal.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: January 31, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Albrecht Klotz, Dirk Schmid, Michael Schumann, Matthias Karl
  • Publication number: 20160154104
    Abstract: A method for operating a surroundings-detection system of a vehicle includes at least one transceiver unit emitting a frequency-modulated signal and receiving echo signals of the emitted frequency-modulated signal. The received echo signals are associated with reflection sources, and a piece of information about the speed of the reflection source relative to the transceiver unit is ascertained on the basis of the received echo signals.
    Type: Application
    Filed: April 8, 2014
    Publication date: June 2, 2016
    Inventors: Michael SCHUMANN, Marcus SCHNEIDER, Dirk SCHMID
  • Publication number: 20160103211
    Abstract: An ultrasonic transmission and reception device is described. This includes a transmission circuit for generating a transmission signal at its transmission outputs and, an ultrasonic transducer, which is suited for converting electrical signals into sound signals and sound signals into electrical signals, a transformer, the primary side of which is connected to the transmission outputs and of the transmission circuit and the secondary side of which is connected to the ultrasonic transducer, and a reception circuit for processing a received signal present at its reception input.
    Type: Application
    Filed: May 22, 2014
    Publication date: April 14, 2016
    Inventors: Karl-Heinz RICHTER, Dirk SCHMID, David BARTYLLA
  • Patent number: 9255991
    Abstract: A method for acoustically sensing an area is described. An acoustic transmit pulse is transmitted into the area by an acoustic transducer and a received signal is acquired with the aid of the transducer, in order to receive the transmit pulse reflected back from the area. Within a post-pulse oscillation time of the transducer, which directly follows the emission of the transmit pulse, the actual phase response of the received signal is determined. In the event the actual phase response deviates from a predefined setpoint phase response, an object is detected within the area. Also described is a device for acoustically sensing an area, which is designed to carry out the method.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: February 9, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Micha Kalbhenn, Albrecht Klotz, Juergen Schirmer, Thomas Treptow, Dirk Schmid, Nico Bannow, Peter Rapps, Tobias Kirchner, Thomas Dittrich, Michael Schumann
  • Patent number: 8942065
    Abstract: In a method and a device for determining the position of an object in relation to a vehicle, for use in a driver assistance system of the vehicle, a first ultrasound pulse is transmitted by an ultrasound sensor situated on the vehicle, the ultrasound pulse including multiple predefined transmission frequencies which result in a variation of the directional characteristic of the ultrasound sensor. The transmitted first ultrasound pulse is reflected on the object and is received again as a first echo pulse. A frequency spectrum of the first echo pulse is subsequently determined, and a first absolute value of a relative offset angle of the object is determined as a function of the frequency spectrum of the first echo pulse and the directional characteristics.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: January 27, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Dirk Schmid, Michael Schumann
  • Publication number: 20140331772
    Abstract: An ultrasonic measuring system is described for detecting an obstacle using a resonant transducer element for transmitting an ultrasonic pulse and for generating a received signal which includes the ultrasonic echo pulse reflected from the obstacle, the transducer element generating a decay signal having its resonance frequency after transmitting an ultrasonic pulse. The ultrasonic measuring system includes an evaluation unit having a control unit which is designed to activate the transducer element for transmitting the ultrasonic pulse with the aid of a frequency-modulated transmitted signal generated by the control unit, the frequency modulation taking place with the aid of a modulation signal in such a way that the to signature of the ultrasonic pulse differs from that of the decay signal.
    Type: Application
    Filed: March 20, 2012
    Publication date: November 13, 2014
    Inventors: Albrecht Klotz, Dirk Schmid, Michael Schumann, Matthias Karl
  • Patent number: 8833167
    Abstract: A sensor device described having a sensor, in particular an ultrasound sensor, having a generating and detecting arrangement to generate and detect waves, in particular sound waves, the detection arrangement converting received waves into electric signals, and the electric signals being evaluable by an evaluation unit. A function-monitoring device is configured to determine an impedance characteristic curve of the sensor as a function of an excitation frequency is provided. Also described is a method for operating the sensor device.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: September 16, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Martin Reiche, Michael Frank, Dirk Schmid, Peter Preissler, Karl-Heinz Richter
  • Publication number: 20130312525
    Abstract: A method for acoustically sensing an area is described. An acoustic transmit pulse is transmitted into the area by an acoustic transducer and a received signal is acquired with the aid of the transducer, in order to receive the transmit pulse reflected back from the area. Within a post-pulse oscillation time of the transducer, which directly follows the emission of the transmit pulse, the actual phase response of the received signal is determined. In the event the actual phase response deviates from a predefined setpoint phase response, an object is detected within the area. Also described is a device for acoustically sensing an area, which is designed to carry out the method.
    Type: Application
    Filed: December 2, 2011
    Publication date: November 28, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Micha Kalbhenn, Albrecht Klotz, Juergen Schirmer, Thomas Treptow, Dirk Schmid, Nico Bannow, Peter Rapps, Tobias Kirchner, Thomas Dittrich, Michael Schumann