A method and system for character recognition are described. The message server grants each terminal access to the messages originating from terminals which use identification codes that belong to the same group of identification codes. The ball pin is pivotably received in the ball socket of the receiving part and the ball pin is configured as a part of the lamp or as a separate component on the lamp. The controller is configured to normalize inputs to the processor from the position sensors and to generate compatible operation control signals applied as the inputs to the operation control mechanisms. The equalizer channel-equalizes the data group included in the demodulated broadcast signal by using the plurality of the known data sequences. The film-forming binder can have a melting point that is less than that of the powdered thermoplastic polymer.