Voice-recognition elevator security system

Details Voice-recognition elevator security system Voice-recognition elevator security system

B - Operations, Transporting

66

B

349/1, 364/1

B66B 1/14 (2006.01) B66B 1/46 (2006.01) G10L 17/00 (2006.01)

Patent

CA 1203032

43 ABSTRACT OF THE INVENTION A voice-controlled elevator security system. Access to an elevator system servicing a plurality of landings of a structure is controlled by comparing a voice signal of a potential user of the elevator system with stored voice signals of all authorized users. The compar- ison is accomplished by first digitizing the potential user's voice signal and comparing it, on a bit-by-bit basis, with a digital representation of the voice signals of all authorized users. Various criteria can be estab- lished for determining the number of binary bits that must agree to conclude that the potential user is an authorized user. Once this determination has been made, the author- ized user can initiate car call signals for those landings to which the authorized user is permitted access.

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