Patents by Inventor Stefan Popescu

Stefan Popescu 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: 10580212
    Abstract: In a method and system for the multisensory representation of an object, multidimensional digital model data of the object are provided to a processor. An actual three-dimensional object model is produced on the basis of at least part of the multidimensional digital model data of the object. The position of the object is recorded subsequently. At least part of the multidimensional digital model data of the object is displayed by an AR display device depending on the position of the object model.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: March 3, 2020
    Assignee: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Publication number: 20200043581
    Abstract: A method includes receiving a first patient model of the patient, the first patient model including a first image dataset of the patient, the first image dataset being coordinated relative to a first coordinate system; receiving a second image dataset of the patient, the second image dataset being based on a medical imaging apparatus and being coordinated relative to a second coordinate system; determining a transformation function to transfer the second coordinate system into the first coordinate system; determining a transformed second image dataset based on the second image dataset and the transformation function; and providing a second patient model of the patient, the second patient model including the modified first image dataset.
    Type: Application
    Filed: October 15, 2019
    Publication date: February 6, 2020
    Applicant: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Publication number: 20200041589
    Abstract: A magnetic resonance device comprising a gradient coil assembly having gradient coils is described. The gradient coils are supported by at least one cylindrical coil carrier for generating gradient fields. As part of the gradient coil assembly, at least one vibration sensor is provided for measuring vibrations of the gradient coil assembly at least in a radial direction of oscillation.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 6, 2020
    Applicant: Siemens Healthcare GmbH
    Inventors: Peter Dietz, Annette Stein, Andreas Krug, Stefan Popescu
  • Patent number: 10528763
    Abstract: The invention discloses a method of protecting data exchanged between a service user and a service provider, which method comprises the steps of encoding data by converting meaningful content of the data into meaningless content to obtain encoded upload data for sending to the service provider; processing the encoded upload data at the service provider to obtain encoded download data for sending to the service user; and decoding the encoded download data by converting meaningless content of the encoded download data into meaningful content of download data.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: January 7, 2020
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventor: Stefan Popescu
  • Patent number: 10520562
    Abstract: The present embodiments relate to an audio unit for reducing an awareness of a noise produced by a magnetic resonance machine, to an audio system, to a magnetic resonance system, and to a method for operating an audio unit. The audio unit includes a vibration sensor unit, a control unit (e.g., a microcontroller), and at least one loudspeaker. The vibration sensor unit may be configured to detect signals transmitted by bone conduction, and may be configured to transmit the signals to the control unit. The control unit may be configured to control the at least one loudspeaker based on the transmitted signals.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: December 31, 2019
    Assignee: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Publication number: 20190377043
    Abstract: Embodiments relate to a sensor for use in a magnetic resonance tomography unit and to a system including of a magnetic resonance tomography unit and a sensor. The sensor includes an energy supply device, a data transmission device and a first resonant antenna. The first resonant antenna includes a signal connection to the data transmission device and/or the energy supply device. A significant mismatch of the first resonant antenna exists between the impedance of the signal connection and the impedance of the first resonant antenna in free space at a first resonant frequency.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 12, 2019
    Inventor: Stefan Popescu
  • Patent number: 10497469
    Abstract: A method includes receiving a first patient model of the patient, the first patient model being a multi-parametric patient model and the first patient model including a first image dataset of the patient, the first image dataset being coordinated relative to a patient coordinate system; receiving a second image dataset of the patient, the second image dataset being based on a medical imaging apparatus and being coordinated relative to a device coordinate system, the device coordinate system being a coordinate system relative to the medical imaging apparatus; determining a transformation function to transfer the device coordinate system into the patient coordinate system; determining a transformed second image dataset based on the second image dataset and the transformation function determined; and providing a second patient model of the patient, the second patient model being a multi-parametric patient model, and the second patient model including the second image dataset transformed.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: December 3, 2019
    Assignee: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Publication number: 20190317168
    Abstract: In a method, control computer and magnetic resonance (MR) apparatus for generating MR recordings of an examination object, first magnetic MR data are acquired in a first recording region inside a homogeneity volume of the scanner of the MR apparatus, and second MR raw data are acquired in a second recording region outside the homogeneity volume. First image data are reconstructed on the basis of the first MR raw data and second image data are reconstructed on the basis of the second MR raw data. The first image data and the second image data are combined to form combination image data, which cover a region that extends in the first recording region and in the second recording region.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 17, 2019
    Applicant: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Patent number: 10429457
    Abstract: In a method for operating a medical imaging apparatus in which an examination object is situated, information is detected indicating that at least one image of the examination object is to be created by the medical device. Next, a selection of an examination sequence is made from multiple stored, predefined examination sequences, and subsequently a detection occurs as to the step in the selected examination sequence at which the medical device is currently operating. Thereafter, a specification of the next step to be undertaken from the selected examination sequence is presented to a person operating the medical imaging apparatus.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: October 1, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Sultan Haider, Stefan Popescu
  • Publication number: 20190293738
    Abstract: A local coil matrix and a method are provided for image acquisition with a magnetic resonance tomography unit. The local coil matrix includes a plurality of coil windings. In magnetic resonance imaging, a predetermined region of a patient arranged in the vicinity of the local coil with selectable differently-sized sensitivity ranges is acquired and/or excited. An image is reconstructed from the magnetic resonance signals acquired with the local coil matrix.
    Type: Application
    Filed: March 25, 2019
    Publication date: September 26, 2019
    Inventor: Stefan Popescu
  • Publication number: 20190286850
    Abstract: The invention discloses a method of protecting data exchanged between a service user and a service provider, which method comprises the steps of encoding data by converting meaningful content of the data into meaningless content to obtain encoded upload data for sending to the service provider; processing the encoded upload data at the service provider to obtain encoded download data for sending to the service user; and decoding the encoded download data by converting meaningless content of the encoded download data into meaningful content of download data.
    Type: Application
    Filed: June 16, 2017
    Publication date: September 19, 2019
    Applicant: Siemens Healthcare GmbH
    Inventor: Stefan POPESCU
  • Patent number: 10338183
    Abstract: In a method and control device for magnetic resonance imaging, raw magnetic resonance data are acquired from one region of an examination object by a number of magnetic resonance receiving antennas of a magnetic resonance system. Calibration values are determined that represent the sensitivity of at least one of the magnetic resonance receiving antennas. An image reconstruction is performed on the basis of the raw magnetic resonance data, taking into consideration the determined calibration values. The determination of the calibration values is frequency-dependent.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: July 2, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: Stefan Popescu
  • Patent number: 10317500
    Abstract: In a method and apparatus for recording magnetic resonance (MR) signals from an examination object, raw data space is filled with MR signals in raw data lines. Movement information of the examination object is detected during recording of the MR signals and the movement information is grouped into different movement phases of the examination object. A temporally randomly distributed sequence of the recording of the raw data lines is determined, with which at least one predetermined portion of the raw data space is filled MR signals. The MR signals are acquired in the determined temporally randomly distributed sequence of the raw data lines in the predetermined portion. Each recorded raw data line is allocated to one of the movement phases of the examination object.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: June 11, 2019
    Assignee: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Publication number: 20190172570
    Abstract: A method includes receiving a first patient model of the patient, the first patient model being a multi-parametric patient model and the first patient model including a first image dataset of the patient, the first image dataset being coordinated relative to a patient coordinate system; receiving a second image dataset of the patient, the second image dataset being based on a medical imaging apparatus and being coordinated relative to a device coordinate system, the device coordinate system being a coordinate system relative to the medical imaging apparatus; determining a transformation function to transfer the device coordinate system into the patient coordinate system; determining a transformed second image dataset based on the second image dataset and the transformation function determined; and providing a second patient model of the patient, the second patient model being a multi-parametric patient model, and the second patient model including the second image dataset transformed.
    Type: Application
    Filed: November 28, 2018
    Publication date: June 6, 2019
    Applicant: Siemens Healthcare GmbH
    Inventor: Stefan POPESCU
  • Patent number: 10302713
    Abstract: In a method and magnetic resonance apparatus for determining absolute three-dimensional reception sensitivity maps for reception coils in a scanner of the magnetic resonance, in particular a scanner having a basic magnetic field strength of at least 3 T, in the presence of a subject under examination that affects the reception sensitivity, spatially resolved subject parameters are determined, which specify electromagnetic properties of the subject under examination, and coil-geometry parameters are determined, which specify the spatial arrangement of the reception coils in the magnetic resonance scanner. The reception sensitivity maps are determined by simulation in a model specified by the subject parameters and the coil-geometry parameters.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: May 28, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: Stefan Popescu
  • Patent number: 10234531
    Abstract: The embodiments relate to methods and an apparatus for measuring a magnetic field in a magnetic resonance tomography device with at least one field probe, wherein at least one generated delete signal may be applied to reduce a residual magnetization in the at least one field probe.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: March 19, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: Stefan Popescu
  • Publication number: 20190053777
    Abstract: A method for detecting measurement signals during a medical imaging procedure executed by a medical device includes detecting measurement signals with a set of sensor nodes, which are integrated in a component of the medical imaging device, wherein each sensor node (SN) operates autonomously and wirelessly, and locally preparing the detected signals for being transmitted according to an interference-free instruction protocol, to a gateway.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 21, 2019
    Applicant: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Publication number: 20190049537
    Abstract: In a method and apparatus for generating image data (other than magnetic resonance (MR) data) in an examination chamber of an MR scanner, an image generating unit generates the image data, a first RF-shielding portion completely encloses the image generating unit except for at least one opening for exchanging image data with the surrounding environment, and a horn-shaped second RF shielding portion is arranged around the at least one opening and is electrically connected with the first RF shielding portion such that the at least one opening opens into the horn-shaped second RF shielding portion.
    Type: Application
    Filed: August 10, 2018
    Publication date: February 14, 2019
    Applicant: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Publication number: 20190049533
    Abstract: A connecting lead for a receiving antenna of a magnetic resonance tomograph, to a system made up of a magnetic resonance tomograph and to a receiving antenna is provided. The connecting lead includes a resonant contactless power coupler. The receiving antenna is magnetically resonantly coupled by the connecting lead to the magnetic resonance tomograph. The magnetic resonance tomograph includes an alternating current generator that may be connected to the connecting lead and is configured to supply the active amplifier element of the receiving antenna with energy.
    Type: Application
    Filed: August 8, 2018
    Publication date: February 14, 2019
    Inventor: Stefan Popescu
  • Patent number: 10182741
    Abstract: The embodiments relate to a device for positioning an examination object when using an imaging system. The device includes a positioning device for the purpose of positioning the examination object for data capture by the imaging system, and at least one sensor fixed to the positioning device. The at least one sensor is configured to capture a movement of the examination object relative to the positioning device. The device is configured to provide the movement to the imaging system.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: January 22, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: Stefan Popescu