Patents by Inventor Olli Tapio

Olli Tapio 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: 20190265316
    Abstract: A balun is provided that is suitable for use with miniature coaxial cables and that obviates the need to cut the cable in order to install the balun. A portion of each coaxial cable that extends from the RF receive coils to the RF receiver is wound multiple times around a device to form an inductor. The inductor may be used with or without a separate resonant circuit. If used with a separate resonant circuit, the inductor and the resonant circuit couple with one another to generate a coupled impedance that provides common-mode noise suppression at the frequency of interest. If used without a separate resonant circuit, the inductor formed in the cable provides an inductance and the capacitance between the windings coupled with the inductance provides a series impedance that suppresses common-mode noise at the frequency of interest.
    Type: Application
    Filed: October 18, 2017
    Publication date: August 29, 2019
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: TRACY WYNN, AASRITH GANTI, OLLI TAPIO FRIMAN, CHRISTOPHER SPENCER
  • Publication number: 20190094317
    Abstract: An apparatus includes a takeup spool disposed at a far end of a magnetic resonance imaging bore. The takeup spool is adapted to release optical fiber, and to retract the optical fiber. The apparatus also comprises a dongle configured to connect to a terminal end of the optical fiber.
    Type: Application
    Filed: March 22, 2017
    Publication date: March 28, 2019
    Inventors: GEORGE RANDALL DUENSING, OLLI TAPIO FRIMAN
  • Publication number: 20180306877
    Abstract: A radio-frequency (RF) coil apparatus for magnetic resonance (MR) systems (100, 200, 300, 400, 500, 600, 700, 900, 1000), the RF coil including a base (102, 502, 702, 902, 1002) having opposed sides (121), a surface (124) to support an object of interest (OOI) for scanning, and fasteners (127) situated at the opposed sides; a positioner (104, 304A, 304B, 504, 604, 704, 1004) configured to be releasably attached to the base and having a body (130) extending between opposed ends and fasteners (134,) situated at the opposed ends of the body, the body configured to form an arch between the opposed ends; and an upper section (106, 606, 706, 906, 1006) having at least one RF coil array (142) for acquiring induced MR signals, the upper section configured to be positioned over the positioner.
    Type: Application
    Filed: October 11, 2016
    Publication date: October 25, 2018
    Inventors: GEORGE RANDALL DUENSING, RON KOSAL, TRACY WYNN, OLLI TAPIO FRIMAN
  • Patent number: 9835699
    Abstract: A local radio frequency (RF) coil assembly (A) defining a pediatric patient receiving region (12) to be mounted to a patient support table (B) of an MRI scanner (E). The local RF coil assembly (A) includes a rigid coil body (16,18) operatively connected to an adjustable coil part (20) along a hinge axis (26). A carrier (F) is configured to receive a pediatric patient (C) and be positioned into engagement with the local RF coil assembly (A). An interlock assembly (51) holds the adjustable coil part (20) in a selected position (50) when the carrier (F) interacts with the adjustable coil part (20). At least one bearing (34, 36) is configured to pivot and bias the adjustable coil part (20) relative to the carrier (F) and gravity bias the interlock assembly and the carrier (F) into an interlocking engagement. The adjustable coil part (20) is gravity biased to the open position (28) when the carrier (F) is removed.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: December 5, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Olli Tapio Friman
  • Patent number: 9386940
    Abstract: A pediatric patient handling assembly includes a carrier on which a pediatric patient is positioned and prepared for magnetic resonance imaging (MRI). The carrier carrying the pediatric patient is set on a support table of an MRI scanner. The support table includes a local RF coil assembly mounted on the support table. The carrier is slid along the support table and into engagement with the local RF coil assembly. Interacting guide surfaces on the carrier and the local RF coil assembly align and engage the carrier along a longitudinal axis of the support table. The local RF coil assembly includes a pivotally mounted anterior coil which is lowered towards a base of the support table into an imaging or operating position. The support table, with the engaged local RF coil assembly, carrier and pediatric patient, is translated into a magnetic imaging region of the MRI scanner.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: July 12, 2016
    Assignee: Koninklijke Philips N.V.
    Inventor: Olli Tapio Friman
  • Publication number: 20140031671
    Abstract: A pediatric patient (110), e.g. 0-18 months, is positioned in a patient carrier (100) and prepared for magnetic resonance imaging. The carrier (100) and patient (110) are set on a patient support table (170) of the MRI scanner on which table a local RF coil assembly (180) has been mounted. The carrier (100) is slid along the table (170) into engagement with the RF coil assembly (180). Interacting guide surfaces on the carrier (100) and RF coil assembly (180) align the carrier (100) with a longitudinal axis of the table (170). The RF coil assembly (180) includes a pivotally mounted anterior coil (290) which is lowered into an imaging or operating position (400). The table with the engaged RF coil assembly (180), carrier (100) and pediatric patient (110) is translated into a magnetic imaging region (330) of the MRI scanner.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 30, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventor: Olli Tapio Friman
  • Publication number: 20140028317
    Abstract: A local radio frequency (RF) coil assembly (A) defining a pediatric patient receiving region (12) to be mounted to a patient support table (B) of an MRI scanner (E). The local RF coil assembly (A) includes a rigid coil body (16,18) operatively connected to an adjustable coil part (20) along a hinge axis (26). A carrier (F) is configured to receive a pediatric patient (C) and be positioned into engagement with the local RF coil assembly (A). An interlock assembly (51) holds the adjustable coil part (20) in a selected position (50) when the carrier (F) interacts with the adjustable coil part (20). At least one bearing (34, 36) is configured to pivot and bias the adjustable coil part (20) relative to the carrier (F) and gravity bias the interlock assembly and the carrier (F) into an interlocking engagement. The adjustable coil part (20) is gravity biased to the open position (28) when the carrier (F) is removed.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 30, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventor: Olli Tapio Friman
  • Patent number: 6799021
    Abstract: A method and arrangement for forming an address for use in signal predistortion. The arrangement is used to form a corrector table address employed in the signal predistortion to compensate for signal distortions. The signal distortions are compensated for using corrector coefficients that are placed in the corrector table and retrieved from the table on the basis of the address. The arrangement includes calculation means that, on the basis of the received signal, calculate a result corresponding to the squaring of a received signal. The arrangement further comprises summing means that, if required, sum up the results corresponding to the squaring, the sum forming a base address. The arrangement further comprises error correction means that correct the calculated base address by means of an address correction value.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: September 28, 2004
    Assignee: Nokia Telecommunications Oy
    Inventor: Olli Tapio
  • Patent number: 6741663
    Abstract: The invention relates to a linearization method for an RF amplifier and an arrangement implementing the method. A difference between an output signal of the amplifier and an unpredistorted input signal supplied to the amplifier is formed from baseband, quadrature components by means of a complex LMS algorithm in adaptation means. On the basis of the signal difference, the non-linearity of the amplifier is adaptively corrected before a quadrature modulator by changing the values of the complex quadrature components of the baseband signal by means of digital predistortion coefficients retrieved from a memory.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 25, 2004
    Assignee: Nokia Corporation
    Inventors: Olli Tapio, Toni Neffling
  • Patent number: 6647073
    Abstract: The present invention discloses a linearisation and modulation device for a power amplifier.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: November 11, 2003
    Assignee: Nokia Corporation
    Inventor: Olli Tapio
  • Publication number: 20020105378
    Abstract: The present invention discloses a linearisation and modulation device for a power amplifier.
    Type: Application
    Filed: November 1, 2001
    Publication date: August 8, 2002
    Inventor: Olli Tapio
  • Patent number: 4919762
    Abstract: A press section of a paper machine includes a first upper fabric, a pick-up suction roll within a loop of the first upper fabric for transferring a web from the forming wire of the paper machine onto the first upper fabric, a first lower fabric, a lower first press roll within a loop of the first lower fabric forming a first double-felted nip with the pick-up suction roll, a smooth-surfaced center roll, a second press roll situated within the loop of the first upper fabric forming a second single-felted nip with the center roll through which the first upper fabric passes, and wherein the first upper fabric has a substantially straight run between the first double-felted nip and the second single-felted nip.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: April 24, 1990
    Assignee: Valmet Paper Machinery Inc.
    Inventors: Jorma Laapotti, Olli Tapio
  • Patent number: 4566946
    Abstract: In a paper making machine, transfer apparatus for guiding a paper web from the press section to the drying section includes a smoothing press including upper and lower smoothing press rolls wherein the web is passed from the press section to the smoothing nip either directly or guided by a guide roll. The lower smoothing press roll of the smoothing press is substantially situated at a position which is normally occupied by a so-called baby or lead-in cylinder of a conventional drying section and the drying wire of the drying section is guided over a sector of the lower smoothing roll which is of a size sufficiently large that the web is transferred onto the drying wire which then carries the web as a closed draw onto the first drying cylinder of the drying section and, preferably, to the subsequent drying cylinders as a so-called single-fabric draw.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: January 28, 1986
    Assignee: Valmet Oy
    Inventors: Martti Koponen, Olli Tapio
  • Patent number: 4452669
    Abstract: A multi-nip press portion or section of a paper or cardboard machine wherein a web is detached from a forming wire by a pick-up roller and transferred onto a first fabric which carries the web into the first nip and wherein the press section includes at least two water-removing press nips which include a common smooth-surface central roller. The central roller has a downwardly facing open sector with which a scraper is associated for passing the web in the case of a break to a pulper or the like. The first nip, which can constitute a press nip and/or a transfer nip is formed by a counter-roller situated in nip-defining relationship with the pick-up roller. A second fabric passes through the first nip over the counter-roller and carries the web on its upper face from the first nip to a second double-fabric nip through which the second fabric, constituting a lower fabric, and a third fabric, constituting an upper fabric pass.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: June 5, 1984
    Assignee: Valmet Oy
    Inventors: Erkki Koski, Olli Tapio
  • Patent number: 4440598
    Abstract: A press section in a paper machine includes a first double felted press nip defined by first and second rolls through which first upper and second lower felt fabrics pass and at least two single felted press nips defined with a plain surface roll, the first felt fabric passing through a first one of the single felted press nips. The press section includes only non-suction rolls, the first and second rolls defining the first double felted press nip each having a solid shell and recessed surface. The first felt fabric supports the web leaving the wire section and is guided over a first sector of the first recessed surface roll wherein the direction thereof is changed so as to be directed generally upwardly prior to the first double felted press nip. The second lower felt fabric which passes through the first double felted press nip is guided over a second sector of the first recessed surface roll which comprises at least a substantial portion of the first sector thereof to provide external support for the web.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: April 3, 1984
    Assignee: Valmet Oy
    Inventors: Erkki Koski, Olli Tapio
  • Patent number: 4192711
    Abstract: A paper-manufacturing machine and method include the feature of detaching a web from a forming wire by utilizing a stationary transfer suction box past which a felt travels while contacting the web so that the latter becomes detached from the forming wire and adheres to the felt while travelling with the latter beyond the forming wire. The felt and web are lapped through a substantial angle around a roll having a recessed surface whiletravelling toward the first press nip of a press section, and at this roll around which the felt and web are lapped a means is provided for directing steam toward the web and through the latter and the felt inwardly toward the recessed surface of the guide roll so that the flowing steam will on the one hand heat water carried by the web to enhance dewatering of the web at the first press nip while on the other hand the steam will serve to maintain the web reliably in engagement with the felt as the latter travels toward the first press nip.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: March 11, 1980
    Assignee: Valmetoy
    Inventors: Olli Tapio, Lassi Veijonen, Eero Hannonen
  • Patent number: 4139410
    Abstract: A Yankee paper machine, particularly for the production of MG (machine glazed) paper and creped tissue, in which the formed paper web is sandwiched between a Yankee felt and a lower felt, pressed in a first nip between a suction roll and a dewatering roll, carried on the Yankee felt around the suction roll and pressed in a second nip between the suction roll and a Yankee cylinder. The web is adhered to the Yankee cylinder and the Yankee felt is detached from the web, passed around separate rolls and returned to the web on the Yankee cylinder in a third nip which in which adherance of the web to the Yankee cylinder is assured.
    Type: Grant
    Filed: November 1, 1977
    Date of Patent: February 13, 1979
    Inventors: Olli Tapio, Lassi Veijonen, Kalevi Riihinen
  • Patent number: 3951732
    Abstract: Wood pulp is delignified and bleached with oxygen in the presence of a mixture of an alkali, a magnesium compound and TEA.
    Type: Grant
    Filed: November 5, 1973
    Date of Patent: April 20, 1976
    Assignee: A. Ahlstrom Osakeyhtio
    Inventors: Eero Vilhelm Sjostrom, Olli Tapio Valttila