Electronic access card having key pads and coils and combination using the same
First Claim
1. In an electronic access card having a unique identification number for use by a user having a personal identification number in conjunction with a lock device, a printed circuit board a microprocessor carried by the printed circuit board, a plurality of keys carried by the board, and connected to the microprocessor, a clock coupled to the microprocessor, a battery carried by the printed circuit board and coupled to the microprocessor and means coupled to the microprocessor and to the battery whereby when keys are operated the keys are polled by the microprocessor and information is adapted to be supplied by the microprocessor to the lock device, said means coupled to the microprocessor permitting information to be coupled from the lock device to the card, said microprocessor having means capable of receiving, storing and transmitting encrypted information which includes the unique identification number for the card, the personal identification number of the user of the card and an update code, means controlled by the microprocessor and the clock for invalidating the update code after a predetermined interval of time, said microprocessor also including means for receiving a periodic update for the update code from information inputted through the keys by the user to permit the continued use of the card by the user after insertion of the periodic update for the update code.
7 Assignments
0 Petitions
Accused Products
Abstract
Electronic access card comprising a printed circuit board. A microprocessor is carried by the printed circuit board. A plurality of keys are carried by the board. A matrix connects the keys to the microprocessor. A clock is coupled to the microprocessor. A battery is carried by the printed circuit board and coupled to the microprocessor. A coil serving as a transducer is carried by the printed circuit board and is coupled to the microprocessor and to the battery so that when keys are operated the keys are polled by the microprocessor and information is obtained from the keys supplied by the microprocessor to the transducer.
76 Citations
9 Claims
- 1. In an electronic access card having a unique identification number for use by a user having a personal identification number in conjunction with a lock device, a printed circuit board a microprocessor carried by the printed circuit board, a plurality of keys carried by the board, and connected to the microprocessor, a clock coupled to the microprocessor, a battery carried by the printed circuit board and coupled to the microprocessor and means coupled to the microprocessor and to the battery whereby when keys are operated the keys are polled by the microprocessor and information is adapted to be supplied by the microprocessor to the lock device, said means coupled to the microprocessor permitting information to be coupled from the lock device to the card, said microprocessor having means capable of receiving, storing and transmitting encrypted information which includes the unique identification number for the card, the personal identification number of the user of the card and an update code, means controlled by the microprocessor and the clock for invalidating the update code after a predetermined interval of time, said microprocessor also including means for receiving a periodic update for the update code from information inputted through the keys by the user to permit the continued use of the card by the user after insertion of the periodic update for the update code.
- 6. In the combination for use by a user of an access card and a security apparatus having a device movable between open and closed positions and having electronic circuitry therein for controlling movement of said device to the open position, the electronic circuitry including means permitting communication with the access card, the access card comprising a printed circuit board, a microprocessor carried by the printed circuit board, a plurality of keys operable by the user carried by the printed circuit board and electrically coupled to the microprocessor for introducing predetermined codes including an update code and commands into the microprocessor for storage therein, a clock coupled to the microprocessor, a battery carried by the printed circuit board and coupled to the microprocessor, means controlled by the microprocessor and the clock for invalidating the update code after a predetermined interval of time, said microprocessor also including means for receiving a periodic update for the update code from information imputed through the keys by the user to permit continued use of the card by the user after insertion of the periodic update for the update code, coupling means carried by the card adapted to establish communication between the access card and the security apparatus and coupled to the microprocessor and the battery whereby when keys on the keyboard are operated the keys are polled by the microprocessor and information is supplied by the microprocessor to the coupling means, the address card also having means capable of receiving information from the security apparatus through the coupling means of the card.
Specification