摘要:
This invention relates to switching-over to a higher speed clock from a lower speed clock. The switching-over of the clock is performed before, after, or simultaneously to a transition to a sleep mode is carried out. After the switching-over of the clock is performed, if oscillation of the high speed clock and an internal voltage are stabilized, it is returned to a normal mode from the sleep mode.
摘要:
An internal bus testing device for a semiconductor integrated circuit in which an internal bus control circuit and a plurality of modules are linked by a plurality of internal buses. The internal bus testing device includes an area selector which causes the internal bus control circuit to select an address area corresponding to one of the plurality of internal buses. An area address setting unit sets the internal bus control circuit in an internal bus test mode in response to an internal bus test start signal, the area address setting unit storing a state setting signal and a predetermined address value indicating the address area. A control unit supplies, at a start of an internal bus test, the address value from the area address setting unit to the area selector by transmitting the state setting signal from the area address setting unit to the area selector.
摘要:
An integrated circuit device having a send/receive macro for serially transferring addresses and data to or from an external device via a serial transfer bus, the integrated circuit device includes: a CPU for performing predetermined processing. The send/receive macro includes a send/receive buffer accessed by the CPU, for storing a plurality of units of data to be transmitted or received over the serial transfer bus; an acknowledge detection unit for detecting a data acknowledge signal transmitted from a receiving device in response to transmission of predetermined units of data; and a data send unit for transmitting data stored in the send/receive buffer, in response to detection of the data acknowledge signal by the acknowledge detection unit, without generating any interrupt to the CPU. And the acknowledge signal detection unit generates a data acknowledge signal non-detection interrupt to the CPU if the acknowledge detection unit does not detect a data acknowledge signal transmitted from the receiving device in response to transmission of the predetermined units of data.
摘要:
Process for the production of bonded hard alloys, which comprises inserting a thin sheet of a Fe group metal or its alloy as a filler in between the surfaces of at least one kind of hard alloy, and applying a high energy beam to a part or all of the thin sheet to melt and solidify the thin sheet in a slit form, thereby bonding the hard alloys together.
摘要:
The invention relates to a sintered compact for use in an ultrahard tool having high resistance to heat and wear, outstanding thermal conductivity and thermal shock resistance property at elevated temperature, and suitable for high-speed cutting, and to a method for producing the same. A powder mixture comprising 20-80 volume % high pressure form boron nitride powder, the residual part consisting of Al.sub.2 O.sub.3 powder or a compound ceramic powder principally comprising Al.sub.2 O.sub.3 powder and also containing carbides, nitrides of IVb, Vb, VIb metals of the periodic table, mutual solid solution thereof or admixture thereof, is sintered as it stands or after pressing under a high pressure and a high temperature so that Al.sub.2 O.sub.3 of the compound ceramic constitutes a continuous phase in the structure of the sintered compact, and the half width of (116) in the X-ray diffraction of CuK.alpha. ray of Al.sub.2 O.sub.3 crystals in the structure constituting the continuous phase is within the range from 0.200 deg. to 0.600 deg., thereby enabling to obtain a sintered compact for use in a tool having the aforesaid high properties.
摘要翻译:本发明涉及一种用于具有高耐热耐磨性,高温下优异的导热性和耐热冲击性,适用于高速切割的超硬工具的烧结体及其制造方法。 一种粉末混合物,其包含20-80体积%的高压氮化硼粉末,剩余部分由Al2O3粉末或主要包含Al 2 O 3粉末并且还含有碳化物的化合物陶瓷粉末,周期表中IVb,Vb,VIb族金属的氮化物, 其相互固溶体或其混合物在其高压或高温下进行烧结或压制后,使得复合陶瓷的Al 2 O 3在烧结体的结构中构成连续相,并且(116 )在构成连续相的结构中的Al 2 O 3晶体的CuKα射线的X射线衍射中在0.200度的范围内。 至0.600度,从而能够获得用于具有上述高性能的工具的烧结体。
摘要:
A sintered compact for use in a machining tool comprising 80 to 10 volume % of a high pressure form of boron nitride, and the balance a matrix of at least one binder compound material selected from the group consisting of a carbide, nitride, carbonitride, boride or silicide of IVa and Va transition metal of the periodic table, their mixtures as well as the solid solution of these compounds; the matrix forming a continuous bonding structure in the sintered body.A method of producing the compact comprises preparing a mix of 80 to 10 volume % of a high pressure form of a boron nitride powder with 20 to 90 volume % of at least one powdered binder compound selected from the group consisting of a carbide, a nitride, a carbonitride, a boride and a silicide of a IVa, or a Va metal, mixtures thereof or solid solutions of these compounds, and sintering the mix under pressures more than 20 Kb at temperatures higher than 700.degree. C. for more than 3 minutes.
摘要:
This invention relates to a process for the production of a solid solution of compounds consisting of, in combination, at least 10 mol %, based on all metallic components, of molybdenum, at least one metallic element selected from the Group IVa, Va and VIa elements of the Periodic Table and at least one of non-metallic elements, which comprises mixing the metallic elements in the form of compounds or solutions thereof, adding carbon, optionally with at least one of non-metallic elements to the mixture, subjecting the resulting mixture to a reducing reaction with carbon and then subjecting to a solid solution-forming treatment in a reducing, carburizing or nitriding atmosphere.
摘要:
A process for the production of tungsten carbide or mixed metal carbides, which comprises mixing tungsten oxide powder of mixed high melting point metal oxide powders with carbon powder in an amount sufficient to form the corresponding carbide, heating the mixture at a temperature of higher than 1000.degree. C in an inert atmosphere or in vacuum to reduce the oxygen content and then heating at a temperature of higher than 1400.degree. C in hydrogen atmosphere, thereby to form tungsten carbide or mixed metal carbides directly from the corresponding oxide.
摘要:
Provided is a space-saving coaxial inversion coreless generator of a simple structure wherein a high output can be obtained by utilizing the rotational force of a wind turbine, for example. The coaxial inversion coreless generator comprises a generator shaft supported fixedly, an outer rotor with a magnet supported rotatably by the generator shaft and driven by wind force, a coreless coil body that is housed in the outer rotor coaxially therewith while being supported rotatably by the generator shaft and is provided with a coil portion arranged in association with the magnet, and a reversing gear supported by the generator shaft and rotating the coreless coil body reversely according to rotation of the outer rotor by interlocking with circular gears arranged both in the outer rotor; and the coreless coil body circularly, whereby the generator is constituted to take out a power generation output according to an increase in relative speed between the magnet and the coil portion caused by reverse rotations of the outer rotor and the coreless coil body.
摘要:
An X-ray fluoroscope table and an X-ray fluoroscope system using this fluoroscope table with simple structure and easily ensuring an area where a person stands near the top board.An X-ray fluoroscope table (1) comprises a stand unit (10), a support arm unit (20), a support frame (30), a top board (40), an X-ray generator (60), a column unit (50), and an X-ray detector (FPD 70).The end of the column unit (50) on the support frame side (30) and the end on the X-ray generator (60) side are displaced from each other in the length direction of the support frame (30).With this constitution, the area where an operator (OP3) stands can be ensured near the column unit (50).An X-ray fluoroscope system is constituted of this fluoroscope table (1), a high-voltage generator for supplying electric power to the fluoroscope table (1), and a remote control console for integrally controlling them.