Abstract: In a digital key system, each of a digital key and a digital lock include two terminals and an electric circuit to superimpose and separate a high-frequency signal and a DC current. A microcomputer is operated by DC current supplied from a battery of the digital key through the electric circuit when the digital key is connected to the digital lock, thereby causing an NFC unit to perform communication by the high-frequency signal with the digital key through the electric circuit, read unlocking authority information from a non-contact memory, and authenticate the read unlocking authority information.

Abstract: In a digital key system, each of a digital key and a digital lock include two terminals and an electric circuit to superimpose and separate a high-frequency signal and a DC current. A microcomputer is operated by DC current supplied from a battery of the digital key through the electric circuit when the digital key is connected to the digital lock, thereby causing an NFC unit to perform communication by the high-frequency signal with the digital key through the electric circuit, read unlocking authority information from a non-contact memory, and authenticate the read unlocking authority information.

Abstract: A key management box includes a card reader configured to read ID for personal authentication, a data writing unit to write information on at least the ID read by the card reader in an electronic key, a data erasing unit configured to communication with the electronic key and disable the electronic key when the electronic key is determined to be a key on-lending, and a control substrate configured to determine that a lending mode is established when the card reader reads the ID and cause an electronic lock to permit opening/closing of a door and then activate the data writing unit, or configured to cause the electronic lock to permit opening/closing of the door when the data erasing unit determines that the electronic key is a key on-lending through communication with the electronic key while the card reader does not read ID.

Abstract: A key management box includes a card reader configured to read ID for personal authentication, a data writing unit to write information on at least the ID read by the card reader in an electronic key, a data erasing unit configured to communication with the electronic key and disable the electronic key when the electronic key is determined to be a key on-lending, and a control substrate configured to determine that a lending mode is established when the card reader reads the ID and cause an electronic lock to permit opening/closing of a door and then activate the data writing unit, or configured to cause the electronic lock to permit opening/closing of the door when the data erasing unit determines that the electronic key is a key on-lending through communication with the electronic key while the card reader does not read ID.

Abstract: In a key management box for centrally managing keys used to unlock the locks of a plurality of storage cabinets and comprising a key lock means for making impossible to take out the key, and electronic ID storage section performing personal authentication, and a controller for unlocking the key lock means for a key permitted for a personally authenticated user, the key is an electronic key with an IC tag, the IC tag stores the ID data of a user and data for specifying a storage cabinet permitted for the user to unlock out of a plurality of storage cabinets, and the key management box has a means for reading out the ID data of the IC tag, and a means for unlocking a lock means for a key having the ID data of the user when the electronic key ID storage section identifies a specific user. Consequently, the storage cabinets of the plurality of storage cabinets can be opened/close using one same key.

Abstract: A storage cabinet with key is provided with an electronic key having an electronic key ID memory means that stores electronic key ID, a storage box that stores an item to be kept, an opening and closing permission means that permits opening and closing of storage boxes, and an opening and closing control means that, when it reads out the electronic key ID and authenticates the right, makes the opening and closing permission means permit opening and closing of the storage boxes. The electronic key checks individual identification information input by one or more buttons arranged at the electronic key with specific individual identification information registered at an individual identification information memory means arranged at the electronic key.

Abstract: To provide an electronic key capable of easily checking whether or not data has been read from a contact IC chip and enhance reliability of security, an electronic key includes a contact IC chip connected in series to first and second terminals so that data is read from the IC chip by a current allowed to flow between the first and second terminals, wherein the electronic key comprises an LED arranged in parallel to the contact IC chip and allowed to turn on through use of the current allowed to flow between the first and second terminals when the first and second terminals contact with IC chip data reading means, and turn-on of the LED indicates that data has been read from the contact IC chip.

Abstract: In a key management box (30) for centrally managing keys used to unlock the locks of a plurality of storage cabinets and comprising a key lock means (41) for making impossible to take out the key, and electronic ID storage section (47) performing personal authentication, and a controller (44) for unlocking the key lock means (41) for a key permitted for a personally authenticated user, the key is an electronic key (1) with an IC tag, the IC tag stores the ID data of a user and data for specifying a storage cabinet permitted for the user to unlock out of a plurality of storage cabinets, and the key management box (30) has a means (42) for reading out the ID data of the IC tag (S13: Yes), and a means (S14) for unlocking a lock means (41) for a key having the ID data of the user when the electronic key ID storage section (47) identifies a specific user. Consequently, the storage cabinets of the plurality of storage cabinets can be opened/close using one same key.

Abstract: A bill receiver has a casing 11 having a guide groove 16 on and along which a bill is put on. A cover handle 31 is operated into a totally closed state to transfer the bill through a speed increasing gear unit 40 and a carrying roller unit 50, thereby piling up the bills on a base 21 fixed on the casing 11.