Abstract: A high rate multiplexing system which is capable of operating on multiple channels while ensuring synchronization of the system operation. The system includes a basic timing network for synchronizing the system operation. Automatic phase adjusters are used to re-align data signals with a clock signal whenever data transitions occur while the data is being sampled. Synchronizing circuits are used to insert synchronization data bits into the multiplexed data streams where appropriate. A medium rate multiplexer generates two different data streams, certain clock signals and strobe signals. A higher rate multiplexer is capable of operation in different modes, including but not limited to wideband operation or narrow band operation. A Manchester encoder combines data output signals into a single aggregate data stream.

Abstract: A multiplexer system which operates as a standard multiplexer as well as a proportional multiplexer by providing typical multiplexing operation by one circuit portion and proportional multiplexing operation by other portions of the circuit wherein the multiplexer system can interface with a plurality of users or user devices in such a way that data streams between the user devices and the multiplexer system can be reallocated so as to enhance data transfer irrespective of the clock-to-data relationship such that no data is lost during circuit operation. The proportional MUX can be selectively controlled by a microprocessor.

Abstract: A system for synchronizing information bits to any frequency signal chain with low jitter correction and adapted for gate array implementation.

Abstract: A synthesizer circuit which generates a family of independent clock signals from multiple input clock signal sources under microprocessor control.

Abstract: A revolving door assembly comprising a cylindrical vertically extended door housing, a vertically mounted door comprising a plurality of radially extended leaves connected to a central axis, and a canopy mounted above said door and integral with said housing, said canopy having mounted therein a linearly elongated radiant energy emitting device providing a rectangular, planar energy field, said device mounted in radial relation to the axis of said door and adapted upon the interruption of any portion of the energy field thereof to actuate the locking of said door in position whereby escape from a portion of said housing is prevented.

Abstract: A longitudinally reciprocable roller carrier useful in both a horizontal and a vertical track to support various live and dead loads which comprises a pair of juxtaposed track members of generally H-shaped cross section, a connecting track of generally I-shaped cross section located therebetween, and roller motive means connected to said connecting track and one of said track members facilitating the rollable reciprocation of said track members with respect to each other. The roller motive means comprises a plurality of strategically placed paired rollers located within the substantially enclosed track sections of the first and second track members which permit the carrier to support a continuously moving load in a cantilevered configuration.