Speech processor method and apparatus

摘要

A speech synthesizer circuit for use in an automobile. The circuit includes a dedicated microprocessor and a speech synthesizer integrated circuit which has an output couplable to the speakers of the automobile's radio. The microprocessor monitors various automobile status condition and, based upon these conditions, causes various preprogrammed voice messages to be transmitted to the motorist. The circuit includes various novel features. These features includes novel circuit energization, conditions sensing, failure detection, and voice activation mechanisms.