Patent ID: 7212114

Claim:
A communication apparatus, comprising: first communication means for communicating with an electronic key device in which at least first electronic key information is stored; second communication means for transmitting information through a communication network; a storage section for storing second electronic key information; door lock control means for comparing the first electronic key information received from the electronic key device through the first communication means with the second electronic key information stored in the storage section, thereby controlling a lock apparatus for a door based on the result of the comparison; user recognition means for recognizing a user of the electronic key device based on information received from the electronic key device through the first communication means; transmission control means for controlling, based on the recognition result of the user recognition means, the transmission of information regarding passing in/out of the user of the electronic key device to a predetermined notification destination through the second communication means; and setting storing means for accepting and storing a setting of the user of the electronic key device, the setting storing means determining a notification destination that the information regarding the passing in/out is to be transmitted; wherein the setting storing means accepts and stores time information related to the user of the electronic key device; and wherein the transmission control means transmits information regarding that passing in/out of the user of the electronic key device does not occur to the notification destination through the second communication means, if the set user of the electronic key device is not recognized by the user recognition means for an elapsed time period corresponding to the time information stored in the setting storing means.