摘要:
The digital broadcast receiving apparatus according to the present invention includes a tuning unit for outputting normal image data for performing a normal reproduction operation corresponding to a user selected channel, a memory unit for outputting background image data for performing a background reproduction operation when the normal reproduction operation cannot be performed, a data selector for receiving the normal image data and the background image data and outputting one of the normal image data and the background image data, and an MPEG video decode unit for decoding image data output by the data selector to generate an image signal. The tuning unit successively receives the respective channel selected in the background independently of the user selection, and stores the background image data corresponding to the respective channels in the memory unit.
摘要:
A semiconductor memory device capable of improving the operating speed while suppressing size increase is provided. This semiconductor device comprises a plurality of word lines and a plurality of bit lines arranged to intersect with each other, a single-port SRAM cell, connected to the bit lines and the word lines, having a single port for inputting/outputting data, a first row decoder and a second row decoder connected to the word lines for selecting a row address and a first column decoder and a second column decoder connected to the bit lines for selecting a column address, while each word line is divided into a plurality of local word lines.
摘要:
A memory cell including source-drain regions, a channel region, floating gate electrodes, and a control gate electrode. The floating gate electrodes are placed next to each other over the channel region on a gate insulating layer. The control gate electrode is located over the floating gate electrodes on an insulating layer and an insulating layer, both layers being formed by a LOCOS method. Protuberances are formed on the upper corners of the floating gate electrodes by the insulating layer. A central portion of the control gate electrode is laid over the channel region on insulating layers, to form a selecting gate. A selecting transistor comprises this selecting gate between both the source-drain regions.
摘要:
There is disclosed a non-volatile semiconductor memory in which writing and erasing are easily controlled. When electrons are supplied to a floating gate while a memory cell is in a writing condition, a channel is off. Therefore, there is little capacitive coupling between a control gate, a source and a drain. Even when the electric potential of a word line is raised to vary the electric potential of the source and the drain, the electric potential of the control gate hardly varies. Moreover, when electrons are extracted from the floating gate while the memory cell is in an erasing condition, the channel is on. Therefore, a capacitive coupling is generated between the control gate and the source and the drain. When the electric potential of the word line is raised to vary the electric potential of the source and the drain, the electric potential of the control gate varies accordingly. Since the data value is determined by the variation in the electric potential of the control gate, a complicated control heretofore necessary for preventing excess erasing is unnecessary.
摘要:
Disclosed herein are a heat resistant insulated wire which is not decomposed but maintains insulativity under a high temperature with excellent adhesion of a coating film, and a method of preparing the same. The heat resistant insulated wire includes a base material consisting of an electrical conductor, and an insulating layer provided on its surface. The insulating layer is obtained by heating a second polymer, in which main chains expressed in a chemical formula --[Si(R.sub.1).sub.2 --N(R.sub.2)].sub.n -- are cross-linked with each other by chloroborazine through side chains containing trialkylsilyl radicals at a temperature of at least about 300.degree. C. and not more than 500.degree. C.
摘要:
An insulated wire is suitable for use as a distribution wire, a wire for winding a coil or the like, which is used in a high-vacuum environment or in a high-temperature environment such as a high vacuum apparatus or a high temperature service apparatus. The insulated wire has a base material (1) forming a substrate, a chromium oxide CrO.sub.3-x containing intermediate layer (2) on the substrate, and an oxide insulating layer (3) on the intermediate layer. The base material (1) is an electrical conductor. The chromium oxide containing layer (2) is so formed that the ratio of oxygen to chromium O/Cr is not less than 0.5 but less than 1.5 to avoid the formation of chromic oxide Cr.sub.2 O.sub.3 which reduces the adhesive bonding strength. The oxide insulating layer (3) is formed by applying a precursor solution of a metallic oxide onto the chromium oxide containing layer (2) by a sol-gel method or an organic acid salt pyrolytic method. This insulated wire exhibits a high heat resistance and insulation ability as well as excellent flexibility, and does not provide any gas adsorption source when the wire is used in a vacuum device.
摘要:
Disclosed herein are a heat resistant insulated wire which is not decomposed but maintains insulativity under a high temperature with excellent adhesion of a coating film, and a method of preparing the same. The heat resistant insulated wire includes a base material consisting of an electrical conductor, and an insulating layer provided on its surface. The insulating layer is obtained by heating a second polymer, in which main chains expressed in a chemical formula--[Si(R.sub.1).sub.2 --N(R.sub.2)].sub.n --are cross-linked with each other by chloroborazine through side chains containing trialkylsilyl radicals at a temperature of at least about 300.degree. C. and not more than 500.degree. C.
摘要:
A solution of a ceramics precursor prepared from at last one or two types of metal alkoxides or metal acylates is applied onto a ceramics film having irregularity on its surface, which is formed on a conductor surface, to fill up irregular portions of the surface. This ceramics precursor solution is at least partially changed to a ceramics state by heating. The surface is smoothed by such application of the ceramics precursor solution, and general disadvantages of weakness against rubbing and inferiority in workability can be improved. Further, it is possible to improve an outgassing property.
摘要:
An insulated electrical wire is suitable for use as a distribution wire, a wire for winding coils, and for other electrical purposes. The wire can be used in a high-vacuum environment or in a high-temperature environment. This insulated electrical wire has a conductor core made of a base material (1), an anodic oxide layer (2), and an oxide insulating layer (3). The base material (1) forms a conductor core and has a surface cover of either an aluminum layer or an aluminum alloy layer at least on its outer surface. The anodic oxide layer (2) is formed on the surface layer. The oxide insulating layer (3) is formed on the anodic oxide layer by a sol-gel method or an organic acid salt pyrolytic method. This insulated electrical wire has a good heat resistance and a good insulating strength as well as excellent flexibility, and does not provide any gas adsorption source.
摘要:
Disclosed is a composite body comprising amorphous and porous silica or silica-alumina and a layer of an aluminum-containing phylosilicate formed on surfaces of primary particles of the silica or silica-alumina. This composite phylosilicate is obtained by reacting a water-soluble silicate, a water-soluble zinc salt or magnesium salt and a water-soluble aluminum salt or aluminate in an aqueous medium containing a sol or gel of silica or silica-alumina. This composite phylosilicate has a large specific surface area and a large pore volume and has both the properties of a solid acid and the properties of a solid base.