Patents by Inventor Julian Richter

Julian Richter 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: 12140654
    Abstract: A plurality of reception coils are used to acquire magnetic resonance signals using parallel imaging and a k-space acquisition scheme, in which alternatingly the central region and one of the peripheral k-space portions are imaged in acquisition steps of a pair, such that after a partition number of such pairs, the whole k-space to be acquired has been imaged and a sliding reconstruction window can be applied to reconstruct an additional magnetic resonance image after each acquisition of such a pair. A time series of magnetic resonance images forming the magnetic resonance data set is then reconstructed from the magnetic resonance signals and sensitivity information regarding the plurality of reception coils by using the sliding reconstruction window and a reconstruction technique for undersampled magnetic resonance data. The k-space trajectories for each acquisition step are chosen to allow controlled aliasing in all three spatial dimensions including the readout direction.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: November 12, 2024
    Assignee: SIEMENS HEALTHINEERS AG
    Inventors: Julian Richter, Manuel Stich
  • Patent number: 12078706
    Abstract: Techniques for determining a functional magnetic resonance data set of an imaging region of a brain of a patient are disclosed in which blood oxygenation level dependent functional magnetic resonance imaging is used. The techniques include using a plurality of reception coils, and acquiring magnetic resonance signals using parallel imaging and a magnetic resonance sequence defining a k-space trajectory, wherein undersampling in at least two k-space directions is performed. The techniques further include reconstructing the functional magnetic resonance data set from the magnetic resonance signals and sensitivity information regarding the plurality of reception coils using a reconstruction technique for undersampled magnetic resonance data, wherein the k-space trajectory is chosen to allow controlled aliasing in all three spatial dimensions including the readout direction.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: September 3, 2024
    Assignee: Siemens Healthineers AG
    Inventors: Julian Richter, Manuel Stich
  • Publication number: 20230288510
    Abstract: Techniques are provided for performing three-dimensional diffusion weighted magnetic resonance imaging. A diffusion gradient is applied by controlling a gradient coil arrangement of an MRI system and, during an acquisition period after the application of the diffusion gradient, a readout gradient is applied by controlling the gradient coil arrangement and MR data is acquired. For applying the readout gradient, the gradient coil arrangement is controlled such that the MR data is acquired at least along a trajectory segment of a three-dimensional k-space trajectory, wherein a k-space center is sampled by the trajectory segment multiple times during the acquisition period.
    Type: Application
    Filed: March 13, 2023
    Publication date: September 14, 2023
    Applicant: Siemens Healthcare GmbH
    Inventors: Julian Richter, Manuel Stich
  • Publication number: 20230117041
    Abstract: A plurality of reception coils are used to acquire magnetic resonance signals using parallel imaging and a k-space acquisition scheme, in which alternatingly the central region and one of the peripheral k-space portions are imaged in acquisition steps of a pair, such that after a partition number of such pairs, the whole k-space to be acquired has been imaged and a sliding reconstruction window can be applied to reconstruct an additional magnetic resonance image after each acquisition of such a pair. A time series of magnetic resonance images forming the magnetic resonance data set is then reconstructed from the magnetic resonance signals and sensitivity information regarding the plurality of reception coils by using the sliding reconstruction window and a reconstruction technique for undersampled magnetic resonance data. The k-space trajectories for each acquisition step are chosen to allow controlled aliasing in all three spatial dimensions including the readout direction.
    Type: Application
    Filed: October 17, 2022
    Publication date: April 20, 2023
    Applicant: Siemens Healthcare GmbH
    Inventors: Julian RICHTER, Manuel STICH
  • Publication number: 20230086826
    Abstract: In a method for correcting an influence of an interference effect on a gradient system of a MR apparatus during a MR scan, a gradient pulse is emitted by an amplifier of the gradient system, a gradient sequence is established, an output signal of the amplifier is captured for the gradient pulse, a transfer function is established, and an output signal of the amplifier is established such that the gradient system provides an expected gradient sequence.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 23, 2023
    Applicant: Siemens Healthcare GmbH
    Inventors: Manuel Stich, Julian Richter, Richard Dederichs
  • Publication number: 20230089051
    Abstract: Techniques for determining a functional magnetic resonance data set of an imaging region of a brain of a patient are disclosed in which blood oxygenation level dependent functional magnetic resonance imaging is used. The techniques include using a plurality of reception coils, and acquiring magnetic resonance signals using parallel imaging and a magnetic resonance sequence defining a k-space trajectory, wherein undersampling in at least two k-space directions is performed. The techniques further include reconstructing the functional magnetic resonance data set from the magnetic resonance signals and sensitivity information regarding the plurality of reception coils using a reconstruction technique for undersampled magnetic resonance data, wherein the k-space trajectory is chosen to allow controlled aliasing in all three spatial dimensions including the readout direction.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 23, 2023
    Applicant: Siemens Healthcare GmbH
    Inventors: Julian Richter, Manuel Stich
  • Publication number: 20180185215
    Abstract: A wheelchair provides a tilt function characterized by tilt-in-space behaviour in the posterior tilt range and wherein in the anterior tilt range, the seat to backrest angle opens as the seat tilts forward.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 5, 2018
    Inventors: Torr Brown, Bahareh Najafi-Ashtiani, James Formby, Julian Richter, Louis Belanger, Patrick Chelf
  • Patent number: 5601440
    Abstract: The present electrical plug lock out apparatus comprises two matable, close-ended lids; a first female threaded lid and a second male threaded lid. Each lid has a flange or brim around the circumference of the lid which is integral with the lid. The flange or brim on each lid has an allignable hole for accepting a conventional pad lock or similar device. The male threaded lid has a plurality of elongated "U" shaped slots running through the threaded wall of the lid to a point approximately midway through the non-threaded wall of the lid. Each slot is sized to accept an electrical cord having a plug head.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: February 11, 1997
    Inventor: Julian Richter
  • Patent number: 4005279
    Abstract: A lockable cover for push button telephones to prevent the unauthorized making of outgoing telephone calls consisting of a base member attachable to the underside of the telephone and a cover member having a raised portion to cover the push buttons of the telephone. The base member and cover members are pivotally secured together at the front edges thereof with tabs on the rear edges that have aligned openings for receiving a lock. When the lockable cover is in place on the telephone, the push buttons cannot be actuated to make unauthorized outgoing phone calls.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: January 25, 1977
    Inventor: Julian Richter