摘要:
A circuit for generating a constant reference oscillation from a video signal affected by a time error, comprising, a cut-off stage for receiving the video signal affected by the time error and outputting sync pulses and vertical sync pulses, a first frequency divider connected to the cutoff stage for receiving the vertical sync pulses and outputting divided frequency pulses and a first comparator stage connected to the first frequency divider for receiving the divided frequency pulses. The first comparator stage has an output connected to an oscillator and the oscillator, in turn, has an output connected to a second frequency divider which is also connected to an input of the first comparator stage. A second comparator stage is connected between the cutoff stage sync pulses and an output of the oscillator for producing an output and a clock oscillator is connected to the output and, in turn, is connected to a bucket chain which receives the video signal affected by the time error and outputs a video signal which is free of the time error.
摘要:
A method for making metal powder by atomizing molten metal is improved by causing the solidifying metal droplets to be subjected to a whirling flow of a powdery coolant such as a different powder, e.g. quartz sand or powder separated from the extracted flow of powder just made and cooled additionally. The whirling flow is sustained by blowing an inert gas in up direction into the powder collection chamber.
摘要:
In a playback circuit for a three-line sequential color television signal, which includes a memory presenting four outputs providing, respectively, the undelayed sequential signal and the sequential signal delayed by one, two and three horizontal picture line scanning periods, a combining arrangement connected to the four outputs to combine the signals thereat into a difference signal, and a further combining arrangement for adding the difference signal to the original three-line sequential signal, the circuit is simplified by constructing the memory to cause the signals at its four outputs to have identical amplitudes and by combining the signals at the four outputs of the memory by means of four electrically identical combining components, the undelayed sequential signal and the signal delayed by three picture lines having their polarities reversed relative to the signals delayed by one and two picture lines.
摘要:
A magnetoresistive memory element is provided with a read module having a first pinned layer with a magnetoresistance that is readable by a read current received from an external circuit. A write module has a nanocontact that receives a write current from the external circuit and, in turn, imparts a spin torque to a free layer that functions as a shared storage layer for both the read module and the write module.
摘要:
A magnetic shield that is capable of enhancing magnetic reading, such as in use as a data transducing head. A magnetic stack can have a read element with an air bearing surface (ABS). The read element may be positioned adjacent a shield layer with a continuously curvilinear sidewall and a shield feature may be positioned within the areal extent of the continuously curvilinear sidewall.
摘要:
The present invention includes a memory configured to store data having a pinned layer and a plurality of stacked memory locations. Each memory location includes a nonmagnetic layer and a switchable magnetic layer. The plurality of stacked memory locations are capable of storing a plurality of data bits.
摘要:
A compound magnetic data storage cell, applicable to spin-torque random access memory (ST-RAM), is disclosed. A magnetic data storage cell includes a magnetic storage element and two terminals communicatively connected to the magnetic storage element. The magnetic storage element is configured to yield any of at least three distinct magnetoresistance output levels, corresponding to stable magnetic configurations, in response to spin-momentum transfer inputs via the terminals.
摘要:
An apparatus comprises a ring of magnetic material, a source for applying a setting magnetic field to the ring, and first and second electrodes for applying an electric current to the ring. A method of using the apparatus to write to a magnetic storage medium is also provided.
摘要:
Mounting method for a miser laser having a miser crystal on the base surface of a housing, which has a side wall with a housing window for the miser exit beam, is provided. A reference beam is directed through the housing window on to the crystal end face of the miser crystal with an inverted light beam direction which the miser beam to be generated is later to have. An adjusting device which permits mutually independent movements, on the one hand in a direction parallel to the reference beam, and on the other hand perpendicular thereto and parallel to the housing base, and also permits rotations about an axis of rotation perpendicular to the housing base, is used to preadjust the premounted miser stack such that the angle between the surface normal of the crystal end face and the reference beam is approximately 45°, and the reference beam strikes the crystal end face approximately at its center. In the as yet not optimally adjusted case, all the reflections are united on a display screen by displacing the miser transverse to the direction of the reference beam and by rotation.
摘要:
The circuit board (1) has a component (101) mounted on it by means of a soldering process which causes an automatic, passive alignment of the component (101) due to the surface tension in a melted piece of solder which electrically connects two pads (2, 102), one (102) of which is on the component and the other (2) of which is on the circuit board. Stand-offs (20) are used to provide a suitable spacing or distance between the component (101) and the circuit board (1). The other pad (2) has a surface that is divided into a central part (3) and an edge part (4), both wettable by the solder. The second or edge part (4) is shaped like a ring and surrounds the central part and is composed so that it is more slowly wettable by the solder than the central part. The spacing established by the stand-offs is dimensioned so that a melted piece of the solder between the pads produces a force drawing the component (101) toward the circuit board (1) because of surface tension in the melted solder.