SCIENTIFIC AND ELECTRICAL APPARATUS AND INSTRUMENTS; APPARATUS FOR THE RECORDING, TRANSMISSION AND REPRODUCTION OF SOUND; SPEECH RECOGNITION APPARATUS AND INSTRUMENTS; VOICE-RECOGNITION APPARATUS AND INSTRUMENTS; TELEPHONE APPARATUS AND INSTRUMENTS; VOICE-ACTIVATED APPARATUS AND INSTRUMENTS, INCLUDING VOICE-ACTIVATED TELEPHONE APPARATUS AND VOICE-ACTIVATED COMPUTER APPARATUS; VOICE-INTERACTIVE APPARATUS, INCLUDING VOICE-INTERACTIVE TELEPHONE APPARATUS AND VOICE-INTERACTIVE COMPUTER APPARATUS;...