Patent ID: 6748301
Filing Date: 2004-06-08
Classification: B60K,B60R

Abstract:
An apparatus for prevention of driving of motor vehicle under the influence of alcohol (DUI) and prevention of vehicle theft, the apparatus comprising:a vehicle key insertion discriminator for detecting whether a vehicle key is inserted into a key hole; a microphone input unit for inputting a voice and a voice secret code of an intended driver; a prompt storage unit containing prompts for voice prompt or voice guidance; a blood alcohol level measuring unit for determining whether the intended driver is legally drunk; a voice recognition processor for receiving the output of the microphone input unit, extracting a voice feature parameter therefrom and voice-synthesizing the prompts stored in the prompt storage unit to then output the synthesized result; a parameter storage unit for storing the voice feature parameter of the voice and voice secret code processed in the voice recognition processor, for one or more authorized drivers; a speaker for converting an electrical signal of the voice prompt or guidance which has been voice-synthesized in the voice recognition processor into a voice signal; and a controller for comparing the input voice feature parameter with the stored voice feature parameter unless the driver is legally drunk as determined by the blood alcohol level measuring unit, and for controlling the ignition of the engine of the vehicle if it is determined that the drive is an authorized driver.