Abstract: A lock cylinder with a lock cylinder housing is provided. A knob shaft, rotatable by way of a knob, is mounted to rotate on one side or both sides of the lock cylinder. An authorization signal causes at least one electromechanically operating coupling device to connect a lock element to rotate in unison with the knob shaft and in order to operate a lock. The authorization signal is generated by evaluation electronics based on an input or input signal. It is proposed that at least one reading unit with an input unit to record the input and/or a receiving unit to receive the input signal is present, that the reading unit with the input unit and/or receiving unit is arranged in at least one knob and are spatially separated from the evaluation electronics, that the knob is connected electrically and mechanically releasable to the knob shaft, and that the reading unit generates, from the input or input signal, an access signal that can be evaluated by the evaluation electronics.

Abstract: The invention concerns a lock cylinder with a lock cylinder housing, having at least one hollow cylindrical receptacle, in which a rotating part is mounted to rotate, which is connected to rotate in unison with a lock element, and with at least one coupling device, which moves at least one blocking element between a locked position, in which it is engaged with an abutment in the rotating part or the lock cylinder housing and blocks rotation between the rotating part and blocking cylinder housing, and a released position, in which it is disengaged from the abutment and permits rotation between the rotating part and the lock cylinder housing. According to the invention, it is proposed that along the peripheral region of the rotating part of the lock cylinder housing, which is swept by the blocking element during one revolution of the rotated part, at least two and preferably several abutments are provided in the peripheral direction, into which the blocking element can engage.

Abstract: The invention concerns a lock cylinder with a lock cylinder housing, in which a knob shaft, rotatable by means of a knob, is mounted to rotate on one side or both sides, and with at least one electromechanically operating coupling device, which, based on an authorization signal, connects a lock element to rotate in unison with the knob shaft and/or releases the knob shaft, in order to operate a lock, said authorization signal being generated by an evaluation electronics based on an input or input signal.

Abstract: The invention concerns a knob cylinder with a cylinder housing on which at least one side a knob is pivotably mounted for operating a lock catch, and with an electronic control which upon access authorization operates electronic switch means or coupling means in order to enable and/or to create a rotating-connection between the knob and the lock catch. According to the invention it is provided that a biometric sensor which cooperates with the electronic control and scans a fingerprint to determine access rights is located on the knob.

Abstract: The invention relates to an electromechanical lock cylinder with integrated electronic control means which upon electronically detectable access rights creates and/or enables a rotating-connection between a lock catch which operates a lock bolt and manually or motor operated actuation means. According to the invention it is provided that the electronic control means of the cylinder lock comprise at least one wireless data signal transmission interface for transmitting data and in particular data for programming the access codes for the access rights.