Patents by Inventor Mihai Alexandru Ionescu

Mihai Alexandru Ionescu 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: 10382024
    Abstract: An omnipolar magnetic sensor system includes an input stage and a behavior component. The input stage is configured to receive a source signal and to selectively chop the source signal. Further, the input stage is configured to balance the source signal using behavior parameters and generate a balanced source signal.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: August 13, 2019
    Assignee: Infineon Technologies AG
    Inventor: Mihai Alexandru Ionescu
  • Publication number: 20180003522
    Abstract: A magnetic sensor device for determining a rotation direction of a magnetic component about a rotation axis is provided. The magnetic sensor device includes a bridge circuit with a first half-bridge and a second half-bridge. Each of the first half-bridge and the second half-bridge comprises at least one magnetoresistive structure. Further, the magnetic sensor device includes an evaluation circuit configured to determine the rotation direction of the magnetic component based on a phase difference between an output signal of the first half-bridge and an output signal of the second half-bridge.
    Type: Application
    Filed: June 14, 2017
    Publication date: January 4, 2018
    Inventors: Mihai Alexandru IONESCU, Tobias WERTH
  • Publication number: 20170262206
    Abstract: An information storage circuit having a first memory portion configured to store a first validity bit and first data; a second memory portion configured to store a second validity bit and second data; and a subcircuit configured to: write the first data to the first memory portion and the second data to the second memory portion sequentially; and set the first and second validity bits to indicate which of the first data and second data is valid.
    Type: Application
    Filed: April 14, 2017
    Publication date: September 14, 2017
    Inventors: Mihai-Alexandru Ionescu, Christoph Schroers, Davide Cassata, Hubert Fischer, Wolfgang Horn, Razvan-Catalin Mialtu, Radu Mihaescu
  • Patent number: 9730755
    Abstract: A system and method for the delivery of a medical device to a treatment location. The device may include an elongate body, the elongate body including a plurality of annular segments and a jacket disposed about the plurality of annular segments and defining an interior space, and a vacuum source in fluid communication with the interior space of the jacket. When a vacuum is applied to the interior space of the jacket, the jacket may constrict about the plurality of annular elements, thereby increasing the frictional forces between the plurality of segments and between the plurality of segments and an inner surface of the jacket.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: August 15, 2017
    Assignee: Medtronic CryoCath LP
    Inventors: Dan Wittenberger, George D. Mallin, Claudia Lueckge, Mihai-Alexandru Ionescu, Daniel Harvey-Poncelet
  • Patent number: 9678138
    Abstract: A monitoring unit (100; 800) for monitoring an integrity of a signal path (200; 620) configured to receive an input signal (210, 802) and further configured to provide an output (220) in response to the input signal (210, 802), comprises a signal monitor (110; 801) configured to extract a first signal (112; 630) from the signal path (200; 620) corresponding to the input signal (210, 802) in at least a first characteristic. The monitoring unit (100; 800) further comprises a signal interface (120; 803) configured to extract a second signal (122; 631) corresponding to the output (220) in at least a second characteristic from the signal path (200; 620); and an evaluator (130) configured to determine, whether the at least first characteristic of the first signal (112; 630) corresponds to the at least second characteristic of the second signal (122; 631) according to a predefined relation.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 13, 2017
    Assignee: Infineon Technologies AG
    Inventors: Bernhard Forster, Kirk Herfurth, Mihai Alexandru Ionescu, Friedrich Rasbornig, Christoph Schroers
  • Patent number: 9652011
    Abstract: Embodiments relate to multi-contact sensor devices and operating methods thereof that can reduce or eliminate offset error. In embodiments, sensor devices can comprise three or more contacts, and multiple such sensor devices can be combined. The sensor devices can comprise Hall sensor devices, such as vertical Hall devices, or other sensor types in embodiments. Operating modes can be implemented for the multi-contact sensor devices which offer significant modifications of and improvements over conventional spinning current principles, including reduced residual offset.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: May 16, 2017
    Assignee: Infineon Technologies AG
    Inventors: Mihai-Alexandru Ionescu, Christoph Schroers, Davide Cassata, Hubert Fischer, Wolfgang Horn, Razvan-Catalin Mialtu, Radu Mihaescu
  • Publication number: 20160277009
    Abstract: An omnipolar magnetic sensor system includes an input stage and a behavior component. The input stage is configured to receive a source signal and to selectively chop the source signal. Further, the input stage is configured to balance the source signal using behavior parameters and generate a balanced source signal.
    Type: Application
    Filed: May 16, 2016
    Publication date: September 22, 2016
    Inventor: Mihai Alexandru Ionescu
  • Patent number: 9341682
    Abstract: An omnipolar magnetic sensor system includes an input stage and a behavior component. The input stage is configured to receive a source signal and to selectively chop the source signal. Further, the input stage is configured to balance the source signal using behavior parameters and generate a balanced source signal.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: May 17, 2016
    Assignee: Infineon Technologies AG
    Inventor: Mihai Alexandru Ionescu
  • Publication number: 20160131696
    Abstract: A monitoring unit (100; 800) for monitoring an integrity of a signal path (200; 620) configured to receive an input signal (210, 802) and further configured to provide an output (220) in response to the input signal (210, 802), comprises a signal monitor (110; 801) configured to extract a first signal (112; 630) from the signal path (200; 620) corresponding to the input signal (210, 802) in at least a first characteristic. The monitoring unit (100; 800) further comprises a signal interface (120; 803) configured to extract a second signal (122; 631) corresponding to the output (220) in at least a second characteristic from the signal path (200; 620); and an evaluator (130) configured to determine, whether the at least first characteristic of the first signal (112; 630) corresponds to the at least second characteristic of the second signal (122; 631) according to a predefined relation.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 12, 2016
    Inventors: Bernhard Forster, Kirk Herfurth, Mihai Alexandru Ionescu, Friedrich Rasbornig, Christoph Schroers
  • Publication number: 20150216589
    Abstract: A system and method for the delivery of a medical device to a treatment location. The device may include an elongate body, the elongate body including a plurality of annular segments and a jacket disposed about the plurality of annular segments and defining an interior space, and a vacuum source in fluid communication with the interior space of the jacket. When a vacuum is applied to the interior space of the jacket, the jacket may constrict about the plurality of annular elements, thereby increasing the frictional forces between the plurality of segments and between the plurality of segments and an inner surface of the jacket.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 6, 2015
    Applicant: Medtronic CryoCath LP
    Inventors: Dan WITTENBERGER, George D. MALLIN, Claudia LUECKGE, Mihai-Alexandru IONESCU, Daniel HARVEY-PONCELET
  • Publication number: 20150115946
    Abstract: An omnipolar magnetic sensor system includes an input stage and a behavior component. The input stage is configured to receive a source signal and to selectively chop the source signal. Further, the input stage is configured to balance the source signal using behavior parameters and generate a balanced source signal.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: Infineon Technologies AG
    Inventor: Mihai Alexandru Ionescu
  • Publication number: 20150033085
    Abstract: Embodiments relate to multi-contact sensor devices and operating methods thereof that can reduce or eliminate offset error. In embodiments, sensor devices can comprise three or more contacts, and multiple such sensor devices can be combined. The sensor devices can comprise Hall sensor devices, such as vertical Hall devices, or other sensor types in embodiments. Operating modes can be implemented for the multi-contact sensor devices which offer significant modifications of and improvements over conventional spinning current principles, including reduced residual offset.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Inventors: Mihai-Alexandru Ionescu, Christoph Schroers, Davide Cassata, Hubert Fischer, Wolfgang Horn
  • Patent number: 8862949
    Abstract: Embodiments relate to reliably storing information in a sensor or other device. In an embodiment, information storage circuitry comprises independent, redundant memory portions and error detection circuitry. The circuit can operate in cooperation with a memory writing procedure that utilizes a validity bit and sequentially writes to one or the other of the redundant memory portions such that at least one of the memory portions has data that is valid and can be recognized as such.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: October 14, 2014
    Assignee: Infineon Technologies AG
    Inventors: Mihai-Alexandru Ionescu, Razvan-Catalin Mialtu, Radu Mihaescu
  • Publication number: 20140108873
    Abstract: Embodiments relate to multi-contact sensor devices and operating methods thereof that can reduce or eliminate offset error. In embodiments, sensor devices can comprise three or more contacts, and multiple such sensor devices can be combined. The sensor devices can comprise Hall sensor devices, such as vertical Hall devices, or other sensor types in embodiments. Operating modes can be implemented for the multi-contact sensor devices which offer significant modifications of and improvements over conventional spinning current principles, including reduced residual offset.
    Type: Application
    Filed: October 15, 2012
    Publication date: April 17, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Mihai-Alexandru Ionescu, Razvan-Catalin Mialtu, Radu Mihaescu
  • Patent number: 8669759
    Abstract: Embodiments relate to omnipolar magnetic field switches. In one embodiment, omnipolar behavior is generated in a Hall effect switch by extracting the modulus of the electric signal generated by the Hall transducer and feeding it to a single high-precision comparator, without any sampling or additional processing steps. The modulus extraction and threshold evaluation can be done in parallel.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: March 11, 2014
    Assignee: Infineon Technologies AG
    Inventor: Mihai Alexandru Ionescu
  • Publication number: 20120249124
    Abstract: Embodiments relate to omnipolar magnetic field switches. In one embodiment, omnipolar behavior is generated in a Hall effect switch by extracting the modulus of the electric signal generated by the Hall transducer and feeding it to a single high-precision comparator, without any sampling or additional processing steps. The modulus extraction and threshold evaluation can be done in parallel.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Inventor: Mihai Alexandru Ionescu