Patents by Inventor Christer Johansson
Christer Johansson 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).
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Patent number: 7998746Abstract: Chips that include one or more particle manipulation mechanisms, or force transduction elements, provided at specific locations to manipulate and localize particles proximal the substrate surface. In one embodiment, individually addressable magnetic control mechanisms such as electric coils are provided at specific locations to create a magnetic field to attract magnetic particles, such a magnetic or magnetizable beads, to those specific locations. In another embodiment, electrostatic control mechanisms such as electrodes are provided to attract and manipulate electrically charged micro-particles. A location may include a crater or well formed in the substrate, or it may include an element on the surface of the substrate. In some embodiments, one or more sensors are located proximal specific locations, e.g., specific craters, so as to analyze specific conditions at each location. In other embodiments, multiple locations share one or more sensors.Type: GrantFiled: February 22, 2002Date of Patent: August 16, 2011Inventors: Robert Otillar, David Storek, Christer Johansson
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Patent number: 7985340Abstract: A magnetic separator unit for the selective separation of at least one component from a fluid mixture is described. The unit can include at least one mandrel-shaped magnet unit and tubing wrapped around it. Fluid containing magnetisable particles can be passed through the tubing to allow attraction of the particles to the magnet unit.Type: GrantFiled: December 1, 2006Date of Patent: July 26, 2011Assignee: Invitrogen Dynal ASInventors: Hilde Kjersti Almaasbak, Christer Johansson
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Publication number: 20100171488Abstract: The invention concerns a system for measuring the alignment error of two axles provided with a first and a second coupling part by means of a biaxial orthogonal magnetic sensor system comprising a sensor and a magnet, wherein said sensor is designed to be placed on the first coupling part with its one direction of sensing oriented in one direction of magnetization of said magnet, which magnet is designed to be placed on the other coupling part and means for reading off an angle error and offset error independently of each other during the rotation of the axles on-line. The system moreover includes a reference sensor for determining said angle error and offset error orientation relative to a known direction.Type: ApplicationFiled: July 17, 2008Publication date: July 8, 2010Applicant: ELOS FIXTURLASER ABInventors: Jan Wipenmyr, Christer Johansson, Christian Jonasson
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Publication number: 20090326718Abstract: A device, method and system for automatic calibration of a container crane, the container crane being controlled by a system including a first sensor (LPS) and/or a second sensor (TPS), are provided. A calibration rig is arranged in a fixed position and includes a plurality of markers, each arranged at a known and fixed position and distance relative to one another. The markers may include a first marker with a first visual appearance, or active marker and/or a second marker with a second visual appearance, or passive marker. The active marker is preferably an illumination source, such as an IR source. A method for calibrating a container crane using the calibration device and a container control system including the calibration device and one or more computer programs are also described.Type: ApplicationFiled: June 18, 2009Publication date: December 31, 2009Inventors: Uno Bryfors, Bjorn Henriksson, Erik Lindeberg, Eric Strale, Martin Aberg, Christer Johansson
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Publication number: 20090085557Abstract: The present invention relates to method and device for detecting changes of a magnetic response of at least one magnetic particle in a carrier fluid. The method comprises: using a measuring procedure comprising measuring the characteristic rotation time of said magnetic particle, said measuring procedure further involving measuring Brownian relaxation in said carrier fluid under influence of an external pulsed excitation magnetic field, and based on said influence of said external pulsed excitation magnetic field measuring a hydrodynamic volume of a particle or a change in a hydrodynamic volume of the particle change upon modification of an effective volume of the particle or its interaction with said carrier fluid by detecting change of magnetization of the particle with time by monitoring change of an output signal in detection coil.Type: ApplicationFiled: October 20, 2008Publication date: April 2, 2009Inventors: Anatol Krozer, Christer Johansson, Jakob Blomgren, Karolina Petersson, Dag Ilver, Andrea Prieto-Astalan, Christian Jonasson
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Publication number: 20090034511Abstract: A technique for interconnecting circuit-switched (CS) and packet-switched (PS) domains enables network components (302) having a PS network access to make use of CS telephony services. A method embodiment of this technique comprises the steps of receiving PS control information according to a PS control protocol such as SIP, determining, in response to receipt of the PS control information, CS control information according to a CS control protocol such as DTAP, and sending the determined CS control information to a second network component (324) that is located on an application (or service) layer for provision of CS services, based on the determined CS control information, to the first network component (302).Type: ApplicationFiled: October 4, 2005Publication date: February 5, 2009Inventors: Frank Hundscheidt, Christer Johansson, Lennart Norell
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Patent number: 7406876Abstract: The present invention relates to a system for detecting characteristics of an elastic structure (13, 22, 23, 32, 33, 93, 1202, 1302, 1402), said structure being provided with at least one sensor (111, 112, 14, 211, 212, 311, 312, 911, 1211, 1311, 1411) and said system comprising at least one detector (16, 416, 516, 916, 1316, 1416). The sensor comprises a deformable member, which upon deformation generates a signal convertible to a signal representing said characteristic, said sensor further comprises a passive transmitter and said detector a receiver for receiving said signal representing said characteristic.Type: GrantFiled: January 19, 2004Date of Patent: August 5, 2008Assignee: Vasensor ABInventors: Anatol Krozer, Christer Johansson, Sofia Johnsson, Brodde Wetter, Henrik Danielsson, Gustav Perers
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Publication number: 20070234654Abstract: A loft ladder assembly (10) is described which comprises a telescopically collapsible ladder (12) in combination with a frame (14) for mounting the ladder (12) within a hatch opening. The frame (14) comprises a mounting bracket (14a) to be secured in use to the hatch opening, to which bracket (14a) the uppermost section of the ladder (12) is pivotably connected, and a carriage (14b) pivotably connected to the mounting bracket (14a) for supporting the weight of the ladder (12) in its stowage position and preventing the ladder (12) from extending unintentionally.Type: ApplicationFiled: April 15, 2005Publication date: October 11, 2007Inventors: Per-Olof Eriksson, Christer Johansson
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Publication number: 20070175831Abstract: A magnetic separator unit for the selective separation of at least one component from a fluid mixture is described. The unit can include at least one mandrel-shaped magnet unit and tubing wrapped around it. Fluid containing magnetisable particles can be passed through the tubing to allow attraction of the particles to the magnet unit.Type: ApplicationFiled: December 1, 2006Publication date: August 2, 2007Applicant: INVITROGEN CORPORATIONInventors: Hilde ALMAASBAK, Christer JOHANSSON
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Patent number: 7245922Abstract: A method and apparatus provides for control of the quality of service for service groups by controlling the power of each service group. The carrier-to-interference requirements for which each service group achieves its minimum acceptable link quality is determined. The difference in carrier-to-interference requirements due to different requirements of fractions of satisfied users is compensated for. A power offset between the service group is determined using the compensated carrier-to-interference requirements.Type: GrantFiled: July 6, 2001Date of Patent: July 17, 2007Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Anders Furuskär, Magnus Almgren, Christer Johansson, Peter de Bruin, Arne Simonsson
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Patent number: 7123132Abstract: A method for aligning a truck chassis with a required position relative to a crane, in which the truck is scanned by a sensor means. The laser scanner is located on the crane in such a way that it will be able to scan at least one of a plurality of loading/unloading lanes. The truck is scanned when it enters into one of the loading/unloading lanes in order to detect/identify at least one edge of the truck. The distance between the identified edge of the truck and a fixed point on the crane is measured. A signal is generated that enables a truck driver to drive the truck into a required position in the loading/unloading lane for accurately receiving or delivering a container.Type: GrantFiled: October 26, 2001Date of Patent: October 17, 2006Assignee: ABB ABInventors: Claes Heidenback, Christer Johansson
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Publication number: 20060207319Abstract: The present invention relates to a system for detecting characteristics of an elastic structure (13, 22, 23, 32, 33, 93, 1202, 1302, 1402), said structure being provided with at least one sensor (111, 112, 14, 211, 212, 311, 312, 911, 1211, 1311, 1411) and said system comprising at least one detector (16, 416, 516, 916, 1316, 1416). The sensor comprises a deformable member, which upon deformation generates a signal convertible to a signal representing said characteristic, said sensor further comprises a passive transmitter and said detector a receiver for receiving said signal representing said characteristic.Type: ApplicationFiled: January 19, 2004Publication date: September 21, 2006Inventors: Anatol Krozer, Christer Johansson, Sofia Johnsson, Brodde Wetter, Henrik Danielsson, Gustav Perers
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Publication number: 20050154896Abstract: A novel and efficient encryption and decryption method and arrangement is presented for synchronization of a communication session for encrypted transmission or authentication between at least two communicating units, a first unit and a second unit communicating via a communication channel. Each unit comprises a session counter (X, Y). The method comprises a handshake procedure whereby the synchronization of session counters is obtained by successively communicated signatures between said communicating units.Type: ApplicationFiled: September 30, 2004Publication date: July 14, 2005Inventors: Mathias Widman, Hans Svensson, Christer Johansson
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Patent number: 6825655Abstract: A method for detecting changes of magnetic response of at least one magnetic particle provided with a external layer in a carrier fluid, comprising measuring the characteristic rotation time of the magnetic particle with respect to the external layer, and measuring Brownian relaxation in the carrier fluid under the influence of an external alternating magnetic field. The method implies that upon modification of the effective volume of the particle or its interaction with the carrier fluid, a hydrodynamic volume of the particle changes, which implies a change of the frequency (ƒmax) at which an out of phase component of the magnetic susceptibility has its maximum.Type: GrantFiled: December 30, 2002Date of Patent: November 30, 2004Assignee: Imego ABInventors: Ana Minchole, Andrea P. Astalan, Christer Johansson, Kerstin Lagerwall-Larsson, Anatol Krozer
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Publication number: 20040125985Abstract: A system for alignment of a truck chassis and a method and computer software means for carrying out same. The system comprises a laser scanner measuring means. The system measures distances to a load accurately despite changes in lighting condition due to weather. No reflective markings are needed on the trucks or containers.Type: ApplicationFiled: January 6, 2004Publication date: July 1, 2004Inventors: Claes Heidenback, Christer Johansson
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Patent number: 6732870Abstract: A storage system, having one or multiple shelves infinitely adjustable on an upright member. The upright member is a singular support structure with at least three parallel grooves running longitudinally below a front face of the vertical support, the grooves having a continuous sectional profile and each groove opening in the front face through a channel. The shelf or shelves are formed on a back side with at least three tongues integrally formed in the shelf and adjoining the back side through a neck portion. The tongues are insertable in the grooves while the neck portions occupy the channels. The neck portions are curved so that the tongues project upwards from the shelf upper surface at a slanting angle, such that the tongues are frictionally arrested in the grooves when the shelf is pivoted to bring the tongues to a tilted position in the grooves.Type: GrantFiled: February 28, 2003Date of Patent: May 11, 2004Assignee: CLL Connectors & Cables ABInventor: Christer Johansson
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Patent number: 6694148Abstract: A transmit power control system and method is provided which utilizes an efficient allocation of average output power of a multi-carrier power amplifier (MCPA), the average output power being a weighted average of the actual power over multiple time slots. Periodically, using the efficient allocation system and method, there will be short periods where the desired average output power will exceed the maximum tolerable power of the MCPA, PMCPA. These short periods in which the desired output power will exceed PMCPA are handled by a system and method which produces a reduced margin between the total power per time slot and PMCPA This reduced margin allows the MCPA to serve a larger number of users per time slot than conventional MCPAs. Alternatively, the MCPA can serve the same number of users as a conventional MCPA, but with higher demands on output power for each user and/or more efficient use of the MCPA's resources.Type: GrantFiled: July 26, 1999Date of Patent: February 17, 2004Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Magnus Frodigh, Christer Johansson, Bo Hedberg, Patrick Eriksson
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Publication number: 20040004084Abstract: The invention suggests a dispenser structure with a storage space in vertical orientation, defined by four upright walls and a bottom. A dispensing orifice is defined between the bottom and a lower rim of a front wall supported on in the dispenser structure. The bottom is made of resilient material, such as nature rubber or synthetics, and totally resilient when a pressure is manually applied to either side of the bottom. The resilient bottom covers the sectional area of the dispenser, and reaches forwards in front thereof for displaying article that are made freely accessible by manipulation of the resilient bottom.Type: ApplicationFiled: March 3, 2003Publication date: January 8, 2004Inventor: Christer Johansson
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Patent number: 6668175Abstract: A method and an apparatus for providing radio access bearer services for different applications in a network having a core network and a radio access network through radio access bearers between the networks are presented. One or more session traffic flows being sent by an application are identified, the identified session is characterized in the form of parameters needed for the determination of the one or more radio access bearers. The characterized parameters are converted into radio access bearer attributes. One or more radio access bearers defined by the attributes are requested and established. Each session is mapped onto a correct radio access bearer established upon receiving the request. The one or more radio access bearers are released when no longer needed.Type: GrantFiled: July 14, 2000Date of Patent: December 23, 2003Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Magnus Almgren, Christer Johansson, Håkan Olofsson, Dalibor Turina, Zsolt Haraszti, Magnus Hartman, Niclas Lindberg
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Patent number: 6648156Abstract: A method for handling containers in which containers are stacked using a moveable crane with a travelling part such as a trolley (8) arranged to lift, move and land a container (7) on a stacking target (15) in a stack comprising a least one ground container (1). The method is characterised by the steps of measuring the horizontal position of the stacking target (15), determining the horizontal position of the ground container (1), and comparing the relative positions of stacking target (15) and ground container (1). An overlap is developed from the relative positions of the stacking target (15) and the ground container (1), and compared to predetermined limits. If the overlap is within limits a desired landing position (25) on the stacking target (15) is selected for the container (7). Advantages include automatic stacking, faster stacking, safer stacks and dense packing of stacks in a container terminal.Type: GrantFiled: April 13, 2001Date of Patent: November 18, 2003Assignee: ABB ABInventors: Uno Bryfors, Christer Johansson