Patent ID: 6876293

Claim:
A door security system comprising: latch means for latching a door; lock operator means for selectively locking and unlocking said latch means; an input console comprising: first reader means comprising a key pad for receiving a personal access code; second reader means comprising a card reader for receiving an electronic code from a coded card; third reader means comprising a contact activatable data port for receiving an electronic code from a coded key; controller means for controlling said operator means; memory means for storing at least one valid personal access code and at least one valid personal identification number; and processor means communicating with said memory means, said first reader means, said second reader means, said third reader means, and said lock controller means, for processing data received from at least one of said first, second or third reader means in response to detecting inputs at said first, second or third reader means, said processing means comprising: identification means for identifying an access code input at one of said first, second or third reader means; code comparison means for comparing said access code to at least one valid access code stored in said memory means, said code comparison means generating a first permissive signal in response to a positive comparison; linked attribute determination means responsive to said first permissive signal for determining whether a linked attribute must also be entered at said keypad, said linked attribute determination means generating a release signal if a linked attribute is not required, said linked attribute determination means generating a second permissive signal if a linked attribute is required; query means responsive to said second permissive signal for querying said keypad for a personal identification number; PIN comparison means for comparing said personal identification number to at least one valid personal identification number stored in said memory means, said PIN comparison means generating said release signal in response to a positive comparison; wherein said lock controller means is responsive to said release signal.