| 摘要 |
An advanced electronic vehicle alarm system allows control of alarm functions to be accomplished using specific spoken commands. A microphone converts speech into time-variant voltage levels which are amplified and sent to a analog-to-digital converter and digitized. The digitized data is then processed by a speech recognition subsystem. The speech recognition subsystem separates extraneous speech from words and provides corresponding output signals when control words are recognized. The output signals are preferably employed by the alarm system to operate door locking and unlocking controls, to operate a loud audible siren and/or horn, to operate vehicle light controls, to provide engine cut-off control, to provide engine starting control or to operate a response indicator incorporated in the main alarm processing unit. The response indicator provides verbal responses to confirm spoken commands. A speaker verification capability is also included in the speech recognition subsystem to allow for secured operation of the vehicle alarm system. |
