Disclosed is a data processing system including virtual-addressed and real-addressed stores. One store is addressed with real addresses and the other store is addressed with virtual addresses. Whenever an addressed location is to be accessed in a store addressed by the other type of addresses, the address is translated to the other type of address. If a virtual address cannot access the desired location in the virtual store, the virtual address through a virtual-to-real translator is translated ...

A virtually active hitch system is provided for the damping of vertical oscillations of an elevator car during a semi-active hitch mode of operation along a relatively lengthy elevator travel path and for load leveling the elevator car during an active mode when the elevator is braked. The virtually active hitch stores energy derived from the elevator motor during the semi-active mode, and utilizes that stored energy during the active mode to actively adjust the positioning of the elevator car, ...

A virtually parallel multiplier-accumulator (VMAC) that can execute more than or less than one MAC operation in a single system clock cycle. The inventive VMAC advantageously employs a resource/time-sharing methodology with multiple sequential computational stages.

An array of satellites virtual forming a geosynchronous space. Communication with the satellites is only carried out during an active arc near the apogee portion. During other points of the satellites orbit, they are inactive. These inactive portions of the satellites orbit include the positions where the satellite communication could conceivably interfere with communications to geosynchronous satellites.

Two independent, cooperating systems, comprising a permanent magnet system and an electromagnet system, are employed to suspend a movable body. Permanent magnets are employed to carry all static loads; whereas electromagnets are used for control purposes only. Persisting net force producing electrical energization of the electromagnet system resulting from displacement of the movable body is caused to be augmented until the movable body is repositioned to an oppositely displaced position of subs...

The inventive computer system uses a layer of software between the operating system and the hardware that localizes the fail-safe protocols into a single module. The system also uses shared memory allocation functions as the interface with the operating system. The memory allocation function creates data structures to satisfy the requests of the operating system. The system also has a data structure locking mechanism to prevent more than one processor from writing to the data structure at a time...

The invention concerns an application of linear system parameter estimation techniques to finite amplitude sonar devices, to extract fine grained angular position information about echo sources. The invention makes use of the fact that the waveform return by a reflecting object within the sonar's beam varies according to its relative angular position from the receiver, and a discovery that this variation may be fit to a linear system model using autoregressive estimation theory to extract the na...

A display circuit for use in a hand held device is provided, which virtually expands the image displayed. The display circuit includes a display, a memory, a motion sensor, and a controller. The display has a predetermined size, and the memory has stored therein an image, which has an image size, that is larger than the size of the display. The motion sensor detects the movement of the hand held device and the corresponding movement of the display. The controller, which is coupled to the motion ...

A method for preparing a moisture-curable, virtually telechelic, silyl-functional polyisobutylene is disclosed, said method comprising reacting, in the presence of a Lewis acid, (A) isobutylene; (B) an initiator of the formula ##STR1## (C) a styryl comonomer of the formula ##STR2## wherein R is selected from H or methyl group, R' is a divalent non-aromatic hydrocarbon group having 1 to 6 carbon atoms, R" is independently selected from alkyl groups having 1 to 10 carbon atoms or aryl groups havin...

A bag that is made silent for purposes of using the bag on a studio set in movies, television, and other live and pre-recorded settings, where set props are needed to recreate real life situations for dramatization, but where real life sound that is created by bags interferes with the recording, broadcasting, or amplification of the dramatic performance. The bag is able to maintain real or imaginary brand labels for either product placement or true-to-life dramatization applications.