Abstract: The battery charger provides a current to a battery depending on its type. The type of the battery is determined using, a two-pronged fork and a pusher slider assembly which may actuate two switches using a spring leaf. The two switches enable to provide a current depending on the type of battery. AAA-type, AA-type, C-type and D-type batteries may be used. The battery charger also enables to easily position the battery in the battery charger.

Abstract: The battery charger provides a current to a battery depending on its type. The type of the battery is determined using, in the preferred embodiment of the invention, a two-pronged fork and a pusher slider assembly which may actuate two switches using a spring leaf. The two switches enable to provide a current depending on the type of battery. In the preferred embodiment of the invention, AAA-type, M-type, C-type and D-type batteries may be used. The invention also enables to easily position the battery in the battery charger.

Abstract: A speech synthesizer is disclosed in which instantaneous conversational speech can be produced by an operator. The speech synthesizer comprises a two dimensional input device, such as a joystick or a playing tablet, for producing vowel-like sounds, a plurality of selection keys for producing consonant-like sounds and a third control for varying the pitch or inflection of the produced signal. The electronic circuit for producing the voicing wave forms can be either analog or digital. The system features simultaneous and continuous control of two formants.