A method for joining a metal component with a connection, wherein the metal component has a hole, the metal component is placed in an inner channel of a metal plate, and using a head type punch metal of the metal plate is forced into the corresponding hole of the metal component thereby joining the metal plate and the metal component with the press-fit connection. The features and window-based characteristics are combinable in various ways according to the invention to detect and predict neurological events in real time, enabling responsive action by the implantable device. Also, errors can be handled with reference to a cache unit including more than one entry identified by an address of a corresponding erroneous IP packet. The second component is a container shaped like a business, credit, or collectors card in length and width, but with a depth large enough to hold the small compact disc and adapter discussed subsequently. The present invention specifies the process of a MSS entering the idle mode initiated by the network and the settings of relevant parameters, thus enhancing the stability of the process of entering the idle mode and saving the system resources. In the erasing method, an erasing signal taking a ramp waveform shape is applied to any one of first and second electrodes for alternately causing a sustain discharge.