Abstract: A current detector comprising a first and a second current-path detector each in the form of a sheet-metal punching having a pair of relatively broad terminal webs of rectangular shape joined together via a bridge of arcuate shape. The bridges are slender compared to the terminal webs for concentrated current flow therethrough. Various arrangements are possible for the two current-path conductors, but their bridges are invariably placed in superposition upon one another. A Hall generator is positioned between the bridges so as to be acted upon by magnetic fields created upon current flow therethrough. One of the terminal webs of the first current-path conductor is electrically connected to one terminal web of the second, in such a way that the magnetic lines of force due to current flow through the two bridges act in the same direction upon the Hall generator.

Abstract: A current detector comprising a current-path conductor in the form of a piece of sheet metal having a slit cut therein for providing a U-shaped path for the flow of current to be detected or measured. A Hall generator is held opposite the current-path conductor so as to be contained in the slit therein, as seen in a direction normal to the sheet-metal current-path conductor, for generating a Hall voltage indicative of the magnitude of the current flowing through the U-shaped current path. A magnetic overlay covers part of the current-path conductor for a higher sensitivity of current detection through enhancement of flux density acting on the Hall generator.

Abstract: A current detector comprising a Hall generator assembly and a current-path conductor assembly. The Hall generator assembly includes a Hall generator in the form of a semiconductor chip mounted to a metal-made mounting plate via a sheet of magnetic material such as Permalloy. A plastic encapsulation envelops at least parts of all the components of the Hall generator assembly. The current-path conductor assembly includes a sheet-metal current-path conductor and a plastic holder molded in one piece therewith. The Hall generator assembly and the current-path conductor assembly are combined by bonding together the encapsulation of the Hall generator assembly and the conductor holder of the current-path conductor assembly into a unitary casing for the current detector. A covering of Permalloy or the like envelopes the casing.

Abstract: A current detector comprising a current-path conductor assembly and a Hall generator assembly. The current-path conductor assembly includes a sheet-metal current-path conductor and a plastic conductor holder molded in one piece therewith. The Hall generator assembly includes a Hall generator in the form of a semiconductor chip mounted to a metal-made mounting plate, a set of leads electrically connected to the Hall generator, and a plastic encapsulation enveloping the Hall generator and parts of the leads. The Hall generator assembly and the current-path conductor assembly are combined by bonding together the encapsulation of the Hall generator assembly and the conductor holder of the current-path conductor assembly. The conductor holder and the encapsulation are shaped in interfitting relationship to each other, so that when they are united, the Hall generator is positioned to generate a Hall voltage in response to a magnetic field due to the current flowing through the current-path conductor.

Abstract: A Hall-effect semiconductor device is formed on a metal-made baseplate, as of nickel-plated copper, via a magnetic layer of Permalloy or the like. Higher in magnetic permeability than the baseplate, the magnetic layer is designed to reduce the magnetic resistance of the flux path. A plastic encapsulation thoroughly encloses the semiconductor device, magnetic layer, and baseplate.

Abstract: The invention relates to a back column for controlling and guiding the cabling of an entertainment center. The back column has a panel having two wings and a face board attached to the two wings. Each wing extends the panel first in an angular direction towards the entertainment center then extends the panel parallel to the entertainment center. The back column has cutouts through which cabling may pass. Other features are disclosed.

Abstract: A frameless sliding door system for a television cabinet stand having a top board coupled to two vertical guide mounts. The frameless sliding door system has two doors, each door having top and bottom bearing rail mechanism that permits the doors to move horizontally away and towards one another, but fixes the movement of the doors in other directions. Other features are disclosed.

Abstract: An improved cabinet for supporting a television and supporting electronics. In one embodiment, the cabinet uses three pillars to support the television unit. Shelves positioned between the three pillars support video source components. Removable side panels facilitate access to cables used to couple the television unit to the video source components.

Abstract: A semiconductor device such as a Schottky-barrier rectifier diode is disclosed which has a barrier electrode formed on a semiconductor substrate of gallium arsenide or the like. Formed around the barrier electrode is an annular resistive layer, typically of titanium oxide, creating a Schottky barrier at its interface with the semiconductor substrate. The resistive layer has a sheet resistance of more than 10 kilohms per square. In order to prevent preliminary breakdowns from taking place at the peripheral part of the resistive layer before final breakdown of the device, the sheet resistance of the resistive layer is made higher as it extends away from the barrier electrode. For the ease of manufacture, the resistive layer can be divided into two or more annular regions of distinctly different sheet resistances.

Abstract: A semiconductor device such as a Schottky-barrier rectifier diode is disclosed which has a barrier electrode formed on a semiconductor substrate of gallium arsenide or the like. Formed around the barrier electrode is an annular resistive layer, typically of titanium oxide, creating a Schottky barrier at its interface with the semiconductor substrate. The resistive layer has a sheet resistance of more than 10 kilohms per square. In order to prevent preliminary breakdowns from taking place at the peripheral part of the resistive layer before final breakdown of the device, the sheet resistance of the resistive layer is made higher as it extends away from the barrier electrode. For the ease of manufacture, the resistive layer can be divided into two or more annular regions of distinctly different sheet resistances.

Abstract: A gallium arsenide diode is disclosed which has a very thin resistive layer of a metal oxide, typically titanium oxide, formed annularly on a semiconductor substrate across the exposed annular periphery of a p-n junction. The titanium oxide layer has a sheet resistance of not less than 10 kilohms per square and creates a Schottky barrier between itself and the neighboring n type region of the substrate. The titanium oxide layer can be formed by first vacuum depositing titanium on the substrate and then heating the titanium layer.

Abstract: A gallium arsenide diode is disclosed which has a very thin resistive layer of a metal oxide, typically titanium oxide, formed annularly on a semiconductor substrate across the exposed annular periphery of a p-n junciton. The titanium oxide layer has a sheet resistance of not less than 10 kilohms per square and creates a Schottky barrier between itself and the neighboring n type region of the substrate. The titanium oxide layer can be formed by first vacuum depositing titanium on the substrate and then heating the titanium layer.

Abstract: An encoder unit comprising an object to be detected having a track having a first region with a magnetization pattern at a predetermined pitch and a second region having no periodic magnetization pattern, and a detector having a magnetoresistance effect element arranged in the direction which intersects the direction of the magnetic flux of the magnetization pattern and in opposed relationship with the object to be detected. The encoder unit is simple in construction yet capable of detecting the position of the object to be detected with a higher degree of accuracy than conventional encoders.

Abstract: Magnetic thin films are formed on two base plates in relation to tracks of a recording medium. After a non-magnetic thin film is disposed on the magnetic thin films, the two base plates are joined via the non-magnetic thin film to form a magnetic gap, so that a magnetic head is fabricated. The magnetic head can be mass-produced in a simple process with uniform quality, and offers a small area of the surface opposite to each other in adjacent recording and/or reproducing portions, so that crosstalk is reduced.

Abstract: A magnetic head for perpendicularly magnetizing a magnetic recording medium having a first magnetic pole to reverse the magnetization in the magnetic recording medium which has been magnetized beforehand in a certain direction, and a second magnetic pole to control reversal of the magnetization in the recording medium effected by the first pole.

Abstract: A magnetoresistive effect thin film magnetic sensor has a temperature compensating magnetoresistive effect (MR) element arranged non-parallel to a signal detecting MR element to prevent the temperature compensating MR element from being influenced by an external magnetic signal field. Alternatively, it has an L-shaped temperature compensating MR element arranged closely to the signal detecting MR element to prevent the temperature compensating MR element from being influenced by the external magnetic signal field. It further has a magnet member arranged closely to or in contact with the temperature compensating MR element to enhance a positional precision of the temperature compensation and reduce a time lag.

Abstract: The present invention is directed to improvements in a perpendicular magnetic recording-reproducing head. One of the improvements comprises the use of a magneto-resistive effect element to form the main pole of the magnetic head. This feature of the invention enables a stable and faithful reproduction of information recorded in a magnetic recording medium up to the shortest wavelength and to obtain a sufficiently large reproducing output signal. Another improvement comprises the use of such magneto-resistive effect elements in layers. The multilayer structure permits production of a large reproducing output and also an optimum S/N ratio even if the width of track is small.

Abstract: A process for making magnetic reluctance effect type magnetic heads comprises forming the magnetic sensor, first lead and second lead sections in series by use of the same material. The noise in the magnetic head is reduced, yet the output is increased by making the first lead section of a width larger than that of the magnetic sensor and second lead sections. The reproducing sensitivity of the magnetic head is increased by forming a plurality of magnetic sensor sections in series within a rectangular area. The control of the magnetic characteristics of the head are controlled for providing less dispersion by providing a substrate on which a magnetic reluctance effect type material varying in electric resistance in response to any magnetic field is formed into a film, the substrate being optionally etched by the use of photolithography to form the magnetic sensor sections, the first lead section and the second lead section on the substrate in given configurations.

Abstract: A switching network with crosstalk elimination capability comprises a group of incoming lines connected to subscribers, a group of outgoing lines intersecting the incoming line group, and a plurality of switching elements provided at preselected crosspoints formed between the incoming lines and the outgoing lines. Crosstalk elimination is provided by means for grounding idle and unused incoming lines and/or idle and unused outgoing lines through impedance elements having a sufficiently low impedance value at a desired frequency band of signals to be exchanged.