Abstract: The electric lock system operates to block access to the room when a guest key has been used and the guest is detected as being present in the room. The lock blocks access to hotel staff and provides the guest greater privacy in the room. The lock system employs an electronic lock in combination with a motion detector for detecting the presence of the guest in the room.

Abstract: In a locking apparatus that utilizes bores and blocking pins along with key cards and code cards to unlock the lock, a master card key is employed with holes in all of the master card bores and balls are used instead of blocking pins.

Abstract: A lock system, comprising at least one off-line lock and at least one key, e.g. as a key card with encoded data, said lock including an electro/mechanical locking mechanism which can be affected by the key, and a key reader enabled to read the encoded data on the key, memorize said data and compare these data with data stored in the key reader for the purpose of, depending of certain comparable data, affecting the locking mechanism. The data used in the system comprise user identification, lock identification, valid time window and also override criteria e.g. time related criteria for invalidating prior used keys.

Abstract: The present invention relates to an individual electronic locking unit of the type which is re-coded to the code associated with a new key means and at the same time makes the previously used code invalid by the introduction of a new key means having a new code. For the purpose of obtaining a favorable solution including simplified data communication, it is according to the invention suggested that the locking unit is adapted to accept key means from a number (N) of mutually independent code sequences (C), only one key means from one of said code sequences (N.multidot.C) being valid at a time.

Abstract: A mechanical card-serviced lock comprises a housing (1), a locking member (2) which is displaceably arranged in the housing, blocking pins (12, 13) which by means of a key card (4) are mechanically movable between positions where they prevent and permit, respectively, relative movement between the locking member and the housing, and means (3, 18) for selectably changing the total length of the blocking pins in order to set the combination of the lock in correspondance with a key card (4) introduced in the lock.

Abstract: A punching device for punching coded key cards and the like comprising a plurality of punches, each of which is selectively movable in respective guide. Balls of ferromagnetic material are positionable in a first punching position and a second passive position. Solenoids with movable cores are arranged to selectively move the balls between the first and second positions.

Abstract: Recodable electronic lock where the coding unit which contains the code and/or other readable information preferably is removed from the lock after the recoding operation. The lock is coded by help of input of information and brought to accept recoding to any code member in a series of code members and is valid until a new, previously not utilized code member in this series is introduced whereupon the lock is automatically recoded to this new code so that the previously employed code member(s) are no longer accepted. The lock is then recoded to accept a new code series by employment of a new appropriately coded recoding member which contains readable information about the code(s) of the different code members in the new series. The potentially valid code series are stored in a memory unit in the lock.

Abstract: The publication relates to a lock system of the type which may be activated and/or recoded by means of a preferably plate formed key and/or recoding unit. The publication relates also to a method for recoding such system and to a key member for recoding the system. The lock system comprises a reading unit reading the code on the key and/or recoding unit, a unit comparing and memorizing the detected code and means for activating the mechanical parts of the lock thereby suspending its locking effect. The purpose of the system is to enable recoding of lock independent of a priority determined sequence of codes on the key and without being dependent of a centrally arranged memorizing unit, memorizing the various codes in sequence. The proposed effects are achieved by including a code section on the key member on to which a recoding command may be recorded.

Abstract: A lock system, comprising at least one off-line lock and at least one key, e.g. as a key card with encoded data, said lock including an electro/mechanical locking mechanism which can be affected by the key, and a key reader enabled to read the encoded data on the key, memorize said data and compare these data with data stored in the key reader for the purpose of, depending of certain comparable data, affecting the locking mechanism. The data used in the system comprise user identification, lock identification, valid time window and also override criteria e.g. time related criteria for invalidating prior used keys.