A low cost position sensor and a mobility device using the same are provided. The low cost position sensor comprises a rollable object, a container and a control circuit. The rollable object comprises a specific material. The container has a non-planar inner bottom portion. At least one sensor for detecting coordinates is disposed inside the container. The rollable object is disposed in the container. The sensor can detect the specific material. The control circuit is coupled to the sensor. The sensor detects the specific material to determine a coordinate position of the rollable object, and sends the coordinate position of the rollable object back to the control circuit. The control circuit determines a tilt angle of the container according to the coordinate position of the rollable object.

A low cost position sensor and a mobility device using the same are provided. The low cost position sensor comprises a rollable object, a container and a control circuit. The rollable object comprises a specific material. The container has a non-planar inner bottom portion. At least one sensor for detecting coordinates is disposed inside the container. The rollable object is disposed in the container. The sensor can detect the specific material. The control circuit is coupled to the sensor. The sensor detects the specific material to determine a coordinate position of the rollable object, and sends the coordinate position of the rollable object back to the control circuit. The control circuit determines a tilt angle of the container according to the coordinate position of the rollable object.

An touch panel detecting a touch position of an electromagnetic stylus is disclosed. The touch panel includes first and second coils, and drive and detection circuits. The first coils include a plurality of subgroups of first coils, which includes a first group of first coils and a second group of first coils. The first group of first coils includes at least one subgroup of first coils, and the second group of first coils includes at least one subgroup of first coils. In addition, subgroups of the first and second groups of first coils are alternately arranged. The first group of first coils receive a signal from the drive circuit and emit signals, the second group of first coils receive signals from the stylus and generate induction signals, and the detection circuit determines a value of a coordinate of the touch position of the stylus based on the induction signals.

An touch panel detecting a touch position of an electromagnetic stylus is disclosed. The touch panel includes first and second coils, and drive and detection circuits. The first coils include a plurality of subgroups of first coils, which includes a first group of first coils and a second group of first coils. The first group of first coils includes at least one subgroup of first coils, and the second group of first coils includes at least one subgroup of first coils. In addition, subgroups of the first and second groups of first coils are alternately arranged. The first group of first coils receive a signal from the drive circuit and emit signals, the second group of first coils receive signals from the stylus and generate induction signals, and the detection circuit determines a value of a coordinate of the touch position of the stylus based on the induction signals.

The present invention provides autoradiography methods and systems for imaging via the detection of alpha particles, beta particles, or other charged particles. Embodiments of the methods and systems provide high-resolution 3D imaging of the distribution of a radioactive probe, such as a radiopharmaceutical, on a tissue sample. Embodiments of the present methods and systems provide imaging of tissue samples by reconstruction of a 3D distribution of a source of particles, such as a radiopharmaceutical. Embodiments of the methods and systems provide tomographic methods including microtomography, macrotomography, cryomicrotomography and cryomacrotomography.

The present invention provides autoradiography methods and systems for imaging via the detection of alpha particles, beta particles, or other charged particles. Embodiments of the methods and systems provide high-resolution 3D imaging of the distribution of a radioactive probe, such as a radiopharmaceutical, on a tissue sample. Embodiments of the present methods and systems provide imaging of tissue samples by reconstruction of a 3D distribution of a source of particles, such as a radiopharmaceutical. Embodiments of the methods and systems provide tomographic methods including microtomography, macrotomography, cryomicrotomography and cryomacrotomography.

A magnetic sensor system includes a magnetic sensor device and a signal processing circuit. The magnetic sensor device generates first to third detection signals corresponding to components in three directions a field generated by a magnetic field generator that is able to change its relative position with respect to the magnetic sensor device. The signal processing circuit includes first and second processors. The second processor generates sphere information and transmits it to the first processor. When coordinates representing a set of values of the first to third detection signals in an orthogonal coordinate system are taken as a measurement point, the sphere information includes data on center coordinates of a virtual sphere having a spherical surface approximating a distribution of a plurality of measurement points. The first processor detects a change in offsets of the first to third detection signals by using the sphere information transmitted from the second processor.

A magnetic sensor system includes a magnetic sensor device and a signal processing circuit. The magnetic sensor device generates first to third detection signals corresponding to components in three directions a field generated by a magnetic field generator that is able to change its relative position with respect to the magnetic sensor device. The signal processing circuit includes first and second processors. The second processor generates sphere information and transmits it to the first processor. When coordinates representing a set of values of the first to third detection signals in an orthogonal coordinate system are taken as a measurement point, the sphere information includes data on center coordinates of a virtual sphere having a spherical surface approximating a distribution of a plurality of measurement points. The first processor detects a change in offsets of the first to third detection signals by using the sphere information transmitted from the second processor.

An apparatus and method for determining position and orientation (PnO) of an object within an environment and for automatically determining a hemisphere of the object relative to a source location using an electromagnetic tracking system and a non-magnetic tracking device. The method involves seeding two candidate PnO solutions, one in each hemisphere, based on initial data from the magnetic tracker. Then, as the sensor moves within the tracking volume, both the magnetic tracker and the non-magnetic tracking device are used to track changes in each of the candidate PnO solutions and to determine a correct one of the candidate PnO solutions.

An angle sensor arrangement is proposed, said angle sensor arrangement including at least two sensor substrates arranged in such a way that they assume different angular orientations in relation to an axis of rotation, wherein at least one sensor substrate comprises two magnetic field sensor elements arranged in such a way that they assume different angular orientations in relation to the axis of rotation, and comprising a combining device, on the basis of which a linear combination of the magnetic field quantities measured by the two magnetic field sensor elements is determinable. Furthermore, a method for calibrating or operating an angle sensor arrangement is specified.