CRAIG C GRIFFITHS
Electrician in Holliston, MA
License number
Massachusetts 2194
Issued Date
Jan 1, 1992
Expiration Date
Jul 31, 2007
Type
Systems Technician
Address
Address
Holliston, MA 01746
Professional information
Secure Room Occupancy Monitoring System And Method
US Patent:
2006025, Nov 16, 2006
Filed:
Feb 17, 2006
Appl. No.:
11/357674
Inventors:
Craig Griffiths - Holliston MA, US
International Classification:
G06K 5/00
US Classification:
235382000
Abstract:
A system and method for providing visual and/or aural notification to the last authorized user to leave a secure area, in which access to the area is based on an identification system that generates a signal when an authorized user entering or leaving the area has been identified. A counter, responsive to signals generated by the identification system, keeps track of the number of authorized users that have been authorized by the identification system to enter the area but have not yet been authorized by the identification system to leave the area. A warning device, responsive to the counter, generates a visual and/or aural message when the last person is authorized by the identification system to leave the area.