Abstract: A wireless electronic initiation device for a detonator via a shock tube comprises an initiation member for initiation the shock tube and an energy storage for providing initiation energy to said initiation member. The initiation device comprises also a wireless communication device with a receiver for receiving an initiation command in a wireless way from an initiation arrangement. The initiation device comprises also a controller, which is configured to determine said received initiation command and based on said received initiation command configured to activate said initiation member to ignite the detonator initiator (108) by the energy fed from the energy storage.

Abstract: An electronic lock assembly according to the invention includes a capacitor unit for storing secondary power, a test circuit for testing the capacitor unit. The test circuit is arranged to connect a test load to the capacitor unit for testing its condition, and to measure the voltage of the capacitor unit before connecting the test load, slightly after connecting the test load, and slightly before disconnecting the test load.

Abstract: An electronic lock assembly according to the invention includes a capacitor unit for storing secondary power, a test circuit for testing the capacitor unit. The test circuit is arranged to connect a test load to the capacitor unit for testing its condition, and to measure the voltage of the capacitor unit before connecting the test load, slightly after connecting the test load, and slightly before disconnecting the test load.

Abstract: The invention relates to a combined near field communication and wireless power transmitter device comprising a first antenna coupled to antenna tuning network and capable of coupling to one or more second antennae in the near field of the first antenna with coupling characteristics, means for communicating wirelessly using said first antenna with a near field communication device in a near field communication mode, and means for transmitting wirelessly power using said first antenna to another device in the vicinity of the first antenna in a power transmission mode. In power transmission mode, the antenna tuning network operates in resonance and has an initial input impedance which is configured to change if there is a change in the coupling characteristics during power transmission, for example charging. The invention also relates to a method of transmitting power to a mobile device for example for charging purposes.

Abstract: A method for reading a code, which code comprises code elements and the first part of the code elements is substantially conductive and the conductivity of the second part is substantially different from that of the first part, in which method the reader couples to the code in a capacitive manner, in which case the signal level of the signal formed by the reader varies according to the conductivity of the code element, and a correction factor is determined of at least one code element for correcting the signal. In addition, the invention relates to a code reader and electric ink.

Abstract: A method for reading a code, which code comprises code elements and the first part of the code elements is substantially conductive and the conductivity of the second part is substantially different from that of the first part, in which method the reader couples to the code in a capacitive manner, in which case the signal level of the signal formed by the reader varies according to the conductivity of the code element, and a correction factor is determined of at least one code element for correcting the signal. In addition, the invention relates to a code reader and electric ink.

Abstract: A sensor head of a code reader for reading an at least partly conductive code, which said sensor head comprises a reading electrode, whose tip is arranged to couple to the code in a capacitive manner, as well as a measuring electronics. The measuring electronics is arranged to input signal to said reading electrode as well as to measure the response of said signal from the reading electrode in order to determine a change in the impedance between the reading electrode and its surroundings. In addition, the invention relates to a corresponding method, code reader, electronic device and mobile device.