This invention involves resonance enhancement of signals obtained from magnetic specimen undergoing changes in magnetic state. This is accomplished by placing the sample, magnetized by a quasi-static magnetic field, in a high frequency resonant cavity. By adjusting the resonance frequency of the sample-containing cavity so that it is resonant at a d.c. field corresponding to domain wall motion or domain rotation, clear signals can be obtained from the sample.

A pipeline interlock mechanism which insures the logical integrity of architected control quantities when used to access Domain Storage from Control State. A hardware Domain Interlock (DOMI) is provided to detect the start of execution in Control State of any instruction which modifies architected controls governing the access of Domain storage, and which insures that any subsequent potential access to Domain storage remains interlocked in the D-cycle until the modified controls become valid.

A system for processing Internet requests that permits multiple binds to the same socket number at the same time on the same computer. A separate domain processing shell may be provided for each domain being hosted on a particular platform, and each domain may be mapped to a unique IP address. When a request for a service is received with a first IP address, that request may be routed to the associated shell, where it is bound to the designated socket number. When a request with a second IP addr...

A scanner (13) of ferroelectric material (17) for redirecting a beam (22) of millimeter wavelength radiation. The scanner (13) includes parallel input and output sides with matching layers (44). Adjacent and opposite parallel wire grid electrodes (31') are addressed with opposite sense voltage pulses in order to redirect the domain orientation of crystals in selected regions of said ferroelectric material (17).

A frequency selective optical data computer memory apparatus and method, which stores and accesses time modulated data in discrete spatial locations of an optically absorbing material providing a temporary, permanent and erasable, or permanent and nonerasable data storage.

A charge domain digital-analog multiplier device. The device has one analog input, M-parallel digital inputs, and one analog output. An M-bit digital word signal is applied to the digital inputs and an analog signal is applied to the analog input. The output is a charge packet which is proportional to the product of the analog input signal and the digital word.

A magnetic device comprising at least one thin layer of a magnetizable material which has an easy axis of magnetization approximately normal to the surface of the layer. Magnetic domains are propagated in the layer by a rotating magnetic field in co-operation with a pattern of magnetizable material on the layer. Domains are detected by passing a current through a pattern of magneto-resistive material on the layer. At least in the part of the device where the detection occurs, the propagation and...

A time domain panner samples a single analogue audio input signal and digitizes it into a 16-bit linear PCM representation which is fed into a memory array having a plurality of memory locations. A multiplexer feeds this memory array and continuously cycles in response to an address counter which repetitively counts to a maximum count. Address words produced by the address counter may address the array with or without add words, and a selected channel of the multiplexer points to a value stored ...

In order to enhance the general purposeness of a time domain multiplexer for digital channel signals of unequal bit rates, the time domain multiplexer is constructed of a plurality of channel units which provide information signals and bit rate signals of input channel signals, a plurality of logic circuits which multiplex the information signals from the channel units, and a control circuit which selects and combines the logic circuits in accordance with the bit rate signal so as to construct a...

A circuit is provided for sampling and accurately reproducing unknown signals which could be electrical, optical, x-ray, gamma ray or particle signals with picosecond resolution. The circuit comprises a superconductive sampling gate having at least two states which are distinguishable from one another and switching circuitry to switch the state of the sampling gate. The switching circuitry includes a sampling pulse source and a bias current source which are combined with the unknown signal to ch...