Abstract: A dot matrix, fluorescent display tube having a filament, a grid and array of anodes on which light emitters are placed. Two or more light emitters are placed on at least one of the anodes.

Abstract: An electronic unit operable in conjunction with a body unit and used by mounting it on an automotive vehicle. The electronic unit includes first and second connectors which produces a coupled-status signal when the electronic unit is coupled to the body unit and a decoupled-status signal when the electronic unit is decoupled from the body unit. A microcomputer is coupled to the first connector and is selectively placed to a start mode when the coupled-status signal is received from the first connector and to a stop mode when the decoupled-status signal is received therefrom. The microcomputer produces clock pulses when it is in the start mode and a stop signal when it is in the stop mode. A timer is coupled to the microcomputer and outputs a reset signal to the microcomputer when the clock pulses are not received for more than a predetermined period of time. The timer further inhibits the reset signal from being outputted when the stop signal is received.

Abstract: A music search device for a tape containing a number of pieces of music. If the search begins within a fixed period since the beginning of the currently played piece, the tape jumps back to the beginning of the preceding piece. If the search begins after the fixed period, the tape jumps back to the beginning of the current piece.