An improved access control assembly including a key assembly constructed to receive a time division binary key code from a remotely located encoder station in the code receive mode of operation, and a lock assembly constructed to control access to a secured device or a secured area, the lock assembly having a predetermined time division binary lock code encoded therein uniquely identifying the lock assembly. When the key assembly is connected to the lock assembly, a time division binary lock rec...

This system couples light from a single fiber transmission line to a sepae output line which passes some light through the coupler to a single fiber transmission line which transmits the light on over a single optical fiber. A mirror within a portion of the coupler reflects out a portion of the light to the coupler output.

The pierceable access port assembly includes a container having a mounting flange formed at one end thereof and an access port unit having an assembly mounting flange which is hermetically sealed to the container flange. In one embodiment, the access port unit includes a sidewall which engages the inner surface of the neck of the container over substantially the entire periphery thereof and includes port means spaced inwardly from the sidewall which terminates within the confines of the sidewall...

A money-dispensing system dispenses a pack of money upon request by an authorized bank-customer, the request involving presentation to a card-reader of the customer's individually-allotted punched-card, and operation of a set of ten push-buttons in accordance with the customer's personal-identification number. The system dispenses a pack of money only if there is correspondence between this number entered by the push-buttons and a number that is read by the card-reader from the card.

There is disclosed apparatus and method for unerasably marking computer and other information records and the like in a precise, machine readable manner so as to identify the particular record, and to control access to the record by providing means for authenticating a control member presented for access to the record. The illustrated system involves preparing a master card of opaque material through which micro patterns have been burned by a laser. This master is used to produce a facsimile pat...

Conditional access is used to prevent unauthorized use, for example, reception of signals. A conditional access apparatus performs a combination of scrambling and encryption to obtain these results. Known conditional access apparatuses use a control word generator to obtain the requested control words, and an encrypter to encrypt the control words. The encrypted control words are sent together with the information to make descrambling possible at the receiving side. The invention proposes the us...

Access apparatus including an access device including at least one of a door and a window, the access device including at least one openable element; and opening apparatus adapted to open the at least one openable element in a presence of a pressure difference of a predefined magnitude between opposite sides of the access device.

An object of the present invention is to provide an access system which can accommodate constant bit rate data irrespective of the traffic conditions and which also allows accommodation of variable bit rate data at a high circuit utilization efficiency. The access system is constructed such that a master station first performs allocation of transmission right for constant bit rate data to all of slave stations for each transmission period for constant bit rate data. The master station does not i...

An access door is constituted by an outer framework adapted to be fitted in a rough opening formed in a building ceiling, wall, or the like, an inner framework set in an opening in the outer framework, a cover plate secured to the inner framework so as to close an opening in the inner framework, a pair of bearings and axis for pivotally connecting the inner framework to the outer framework, and a locking means for locking the inner framework to the outer framework when the inner framework closes...

An access door is constituted by an outer framework adapted to be fitted in a rough opening formed in a building ceiling, wall, or the like, an inner framework set in an opening in the outer framework, a cover plate secured to the inner framework so as to close an opening in the inner framework, a pair of bearings and axis for pivotally connecting the inner framework to the outer framework, and a locking means for locking the inner framework to the outer framework when the inner framework closes...