摘要:
A combined magnetic head system for recording a data track on a guard band between main tracks of a floppy disk. The system includes a control device for controlling a transfer mechanism so that the level of a second signal becomes equal to that of a third signal during the recording of a first signal, or so that the level of a first signal is maximized during the reproduction thereof, or so that a level of one of the reproduced second or third signals is maximized during the recording of the first signal. A guard band data head for data tracks is positioned above the guard band and has width so as to record satisfactorily data on the guard band without degrading recorded information on the main tracks irrespective of whether the recording is performed with the data head stretching over the main tracks. The width is preferably between 40% and 60% of the guard band.
摘要:
A roller-type automatic foil exchanger for supplying a foil beneath a window in a flange of a surface of a vacuum container of an electron beam irradiator includes a foil feed roller having foil wound thereon and a foil take-up reel for winding foil thereon. The foil is supported on a foil holder beneath the window and between the flange and the foil holder. A winding motor rotates the take-up reel to wind foil thereon and to unwind foil from the foil feed roller. A plurality of clamper members are provided to clamp the foil holder to the flange with the foil therebetween.
摘要:
A combined magnetic head for recording a data track on a guard band between main tracks of a floppy disk. A guard band data head for data tracks is positioned above the guard band and has a width so as to record satisfactorily data on the guard band without degrading recorded information on the main tracks irrespective of whether the recording is performed with the data head stretching over the main tracks. The width is preferably between 40% and 60% of the guard band.
摘要:
An IC tester for testing an IC device having clocked circuits operative to process a signal under control of a clock signal with a time delay shift comprises a generator for generating a test signal to be supplied to the IC device under control of a timing signal having a repetition period equal to the period of the clock signal, a generator for generating an expected signal to be hopefully delivered from the IC device in response to the test signal, a shifting circuit for effecting a time delay shift of the expected signal equal to the time delay shift in the clocked circuits in the integrated circuit device, and a comparator for comparing the output signal of the IC device responsive to the test signal with the expected signal delivered through the shifting circuit to thereby determine performance characteristics of the IC device.
摘要:
There is disclosed a dusttight storage cabinet apparatus used for storing works such as wafer cassettes for containing semiconductor wafers. The storage cabinet apparatus includes: a housing having an entrance, formed in its front wall, for allowing works to come in and go out of the housing therethrough; an air supply duct for supplying the inside of the housing with clean air; a vertical rotation shaft rotatably disposed in the housing for turning about its longitudinal axis; a drive motor for turning the rotation shaft; and a rack assembly of a substantially cylindrical structure. The rack assembly is coaxially secured to the rotation shaft and has a plurality of compartments for storing the works therewithin. The compartments open radially outward and are partitioned off from one another so as to prevent cross contamination by dust among the compartments.
摘要:
A semiconductor device in which an insulating layer having a window is formed on a semiconductor substrate, a semiconductor layer is formed on the insulating layer and a semiconductor element is formed on the semiconductor layer, has the advantages of high-speed operation and low power consumption. A conventional manufacturing method involves a high-temperature, time-consuming step by which the semiconductor layer for forming thereon the semiconductor element is formed so that it may have a proper impurity concentration. In the present invention, however, a portion of the semiconductor layer and a portion of the underlying substrate are rendered molten by annealing with an energy beam as of a laser, by which an impurity contained in the substrate is diffused into the semiconductor layer. Accordingly, no high-temperature, time-consuming step is involved in the present invention, permitting the production of a semiconductor device of excellent characteristics.
摘要:
A headphone is designed to have two resonant peaks for simulating loudspeaker reproduction. The headphone comprises a housing in which an electroacoustic transducer with a diaphragm is positioned, wherein the housing is formed with a rearward cavity positioned adjacent to the diaphragm remote from the listener's ear to provide an acoustic compliance to the generated acoustic energy. In order to generate the two resonant peaks to simulate a sensation of realism as if the listener is hearing sound from a loudspeaker, the rearward cavity is communicated with the atmosphere through apertures. The acoustic compliance of the rearward cavity coacts with the apertures to produce two resonant peaks at frequencies corresponding to the frequencies of the peaks which occur in a signal from the loudspeaker.
摘要:
The disclosed apparatus extracts particular instrument sounds included in music in real time during music reproduction. The audio processing section 12 has an attack decision section 42 that decides attack positions of the bass drum sounds in audio signals, a bass drum sounds decision section 43 that decides sound periods of the bass drum in the audio signals, and a bass drum sounds extraction section 44 that extracts bass drum sounds using a time varying type filter for the attack positions and an adaptive type filter for the sound periods.
摘要:
A diagnostic system for an engine includes: a plurality of cylinders, in-cylinder injectors, port injectors and an electronic control unit. The electronic control unit configured to make an abnormality diagnosis of an air-fuel ratio due to the in-cylinder injectors and then to make an abnormality diagnosis of the air-fuel ratio due to the port injectors. The electronic control unit is configured to make an abnormality diagnosis of the air-fuel ratio due to the in-cylinder injectors in an operating situation in which fuel is injected from only the in-cylinder injectors, and to make an abnormality diagnosis of the air-fuel ratio due to the port injectors by increasing a ratio of an injection amount of the port injectors when the electronic control unit has diagnosed that there is an abnormality of the air-fuel ratio in an operating situation in which fuel is injected from both the in-cylinder injectors and the port injectors.
摘要:
An indoor unit includes a heat exchanger provided on the downstream side of a fan and formed with a plurality of lower end portions in a vertical cross section from the front side to the back side of a casing, a plurality of drain pans provided below the lower end portions of the heat exchanger and configured to collect drain water occurring on the heat exchanger, and a drain channel provided between the drain pans and configured to be a flow channel of the drain, and a connecting port to which a drain hose configured to drain the drain water collected by the drain pans to the outside of the casing, and one of the drain pans is arranged to a level equal to or higher than the level of the other drain pan, and the drain channel is provided on the drain pan arranged on the back side of the casing.