Abstract: A method for calibrating a transfer function of a magnetic sensor (MS) on a substrate (SBSTR) in which sensor (MS) the presence of magnetizable objects (SPB) can be detected by magnetizing the objects (SPB) by a magnetic field (H) delivered by a magnetic field generator (WR1, WR2) and in which the transfer function is defined as the transfer from an electrical input signal (Iin) for generating the magnet field H, via magnetic stray field (SF) radiated by the objects (SPB) when magnetized, to an electrical output signal (Iout) delivered by the sensor (MS), comprising the steps of: putting sample fluid on the substrate (SBSTR), the sample fluid comprising a large amount of the magnetizable objects (SPB), attracting part of the magnetizable objects (SPB) towards the magnetic sensor (MS), activating the electrical input signal (Iin), thereby generating the magnet field (H), measuring the electrical output signal (Iout) as a response to the electrical input signal (Iin), calculating the transfer function from the

Abstract: The invention relates to an information carrier comprising a integrated circuit (1) representing a physical unclonable function. To make the integrated circuit more secure it is proposed that it comprises: an input means (7) for receiving a challenge signal for challenging said integrated circuit (1), a response signal providing means (2) for providing a response data signal in response to said challenge data signal, an output means (8) for outputting said response data signal, and a delay means (3, 5, 9-12) for delaying and/or prohibiting the provision and/or the output of said response data signal.

Abstract: The present invention provides an integrated circuit and a method for noise removal in a magnetic nano-particle sensor device. The method of the present invention comprises the steps of sending a conductor current through a conductor to generate a first horizontal magnetic field component at the location of a magneto-resistive sensor. In a further step the optimal operation point of the magneto-resistive sensor is determined by minimising the noise at the output of the magneto-resistive sensor by means of a noise optimisation circuit. By applying an external magnetic field such that nano-particles in the vicinity of the sensor are vertically magnetised, a second horizontal magnetic field component is generated at the location of the sensor. Then, the conductor current is adjusted such that the first horizontal magnetic field component compensates for the second horizontal magnetic field component.

Abstract: The invention relates to a format for storing information on an optical recording medium. According to said format the record carrier comprises a synchronization pattern, which synchronization pattern comprises an identifying part consisting of a bit sequence chosen from 100 101, 010 101, 101 001, 010 100 or 100 100.

Abstract: A system for rendering information from a record carrier is described. The record carrier (1) has an integrated circuit (4) build in. The chip communicates contactlessly with the device. Power for the chip (4) is generated from low frequency magnetic flux changes by a power supply coil integrated on the chip. The device has a read head (22) and a magnetic array (21) having a plurality of poles for generating a static magnetic field having areas with positive and negative magnetic flux for cooperating with the power supply coil, and drive means (26) for rotating the record carrier for scanning the track via the head (22) and for moving the integrated circuit (4) through the magnetic field for creating the low frequency magnetic flux changes.

Abstract: The invention relates to a record carrier (1) comprising an information area (2) for storing information, and an integrated circuit (3) comprising a storage unit (4) for storing additional information AK and Rights. The integrated circuit further comprises a one-time programmable memory (5) comprising a resurrection key RK, the one-time programmable memory having a substantially larger data retention time than the storage unit. If the additional information present in the storage unit is lost or has degenerated, it is possible to restore this information by using the resurrection key present in the one-time programmable memory.