摘要:
In order to suppress a peak of an excessive current and suppress a variation in a resonance voltage of a resonator, which are likely to occur immediately after a discharge lamp starts lighting, in a case where a high-frequency current continuously flows asymmetrically with respect to a zero current instead of flowing symmetrically on positive and negative sides immediately after the lighting since electrodes of the discharge lamp are not evenly warmed, the resonance voltage and the high-frequency current are finely adjusted in a resonance voltage and high-frequency current setting method including setting a drive frequency of an inverter circuit and varying output from a down-converter.
摘要:
In a cooling system for an electronic device of the present invention, server rooms in which a plurality of servers are placed, an evaporator which is provided close to each of the servers, and cools exhaust air from the server by vaporizing a refrigerant with heat generating from the server, a cooling tower which is provided at a place higher than the evaporator, cools the refrigerant by outside air and water sprinkling, and condenses the vaporized refrigerant, and a circulation line in which the refrigerant naturally circulates between the evaporator and the cooling tower. According to the cooling system, an electronic device which is required to perform a precise operation with a heat generation amount from itself being large, such as a computer and a server, can be efficiently cooled at low running cost.
摘要:
Problems In a recording medium such as DVD, for example, when groups having the same title or the same song and different numbers of channels are recorded, all the groups are reproduced, further, when a DVD author mistakes, contents which are not needed to be reproduced are reproduced.Means for Solving Problems In a case of DVD-Audio, a condition for reproducing a group having at least one track (a group having the longest reproducing time, a group having the largest number of tracks, a group having the largest data capacity) is set, and only the group which matches the condition is reproduced. In a case of DVD-Video, a title can be used instead of the group. In a case of CD, a folder is used instead of the group.
摘要:
A communications system which performs accounting according to the actual provided communication quality in a QoS authentication service. A radio system has mobile stations, a radio base station, a packet function control apparatus, a node apparatus and an accounting server, performs user accounting according to an actual communication quality. At least one of the wireless base station, packet control function apparatus and node apparatus has a memory unit which stores a granted communication quality, the communication quality which can be provided and accounting data. Further, at least one of the wireless base station, packet control function apparatus and node apparatus has a control unit which measures the communication quality, and transmits a message when the present accounting differs from the accounting for the measured communication quality, and the accounting server has a control unit which performs accounting using the measured communication quality.
摘要:
An inkjet recording apparatus provides an improved printing speed and improved convenience of use. A recording head discharges droplets of a recording liquid onto a paper so as to form an image on the paper. A belt conveyance mechanism has a belt onto which the paper is electrostatically attached. The paper attached onto the belt is conveyed in a direction perpendicular to a carding direction of the paper.
摘要:
An image forming apparatus includes a bypass sheet supplier configured to supply a recording medium and an image forming mechanism configured to form an image on the recording medium sent from the bypass sheet supplier according to image data. The bypass sheet supplier includes a bypass tray, a lateral side fence, and a sensor unit. The bypass tray is configured to load the recording medium. The lateral side fence is configured to regulate the recording medium in a main scanning direction. The sensor unit is configured to detect whether a lateral edge of the recording medium extending in a sub-scanning direction contacts the lateral side fence.
摘要:
A semiconductor device comprising: a MIS type field effect transistor which comprises a semiconductor raised portion protruding from a substrate plane, a gate electrode extending over the semiconductor raised portion from the top onto the opposite side faces of the semiconductor raised portion, a gate insulation film existing between the gate electrode and the semiconductor raised portion, and source and drain regions provided in the semiconductor raised portion; an interlayer insulating film provided on a substrate including the transistor; and a buried conductor interconnect that is formed by filling in a trench formed in the interlayer insulating film with a conductor, wherein the buried conductor interconnect connects one of the source and drain regions of the semiconductor raised portion and another conductive portion below the interlayer insulating film.
摘要:
A mechanical seal device having a stationary sealing ring attached in close contact to a seal cover, a rotating sealing ring having a counter seal face in close contact with the seal face, and a fixing part having a first fixed ring holding the rotating sealing ring and a second fixed ring fitting in close contact with the rotary shaft and having a bellows surrounding the rotary shaft, having one end connected with the first fixed ring, and having another end connected with the second fixed ring, one seal face of the seal face and the counter seal face having fluid introduction ports for introducing the sealed fluid to the seal face at the circumferential surface at the sealed fluid side and the other seal face having dimples, or one seal face having the fluid introduction ports and the dimples, the dimples being arranged in lines radiating from a center of the seal face.
摘要:
To prevent breakage of a membrane probe during a probe test using a probe card having the membrane probe, appearance of a main surface of a wafer as a test object is tested by an appearance tester 51, and results of bad appearance such as adhesion of a foreign substance to the main surface of the wafer and abnormality in shape of bump electrodes over the main surface of the wafer are collected as wafer map data according to arrangement of respective chips in a plane of the wafer, then the wafer map data are transmitted to a probe tester 53 via a server 52, and the probe tester 53 omits the probe test for chips in which bad appearance was detected, and concurrently performs the probe test to other chips in which bad appearance was not detected, based on the wafer map data.
摘要:
A discharge lamp lighting apparatus comprising a d.c. power source section which rectifies and smoothes an a.c. voltage; a current detecting circuit which detects a current which flows through a discharge lamp; a power source ripple detecting circuit which detects a voltage change of power supplied from the d.c. power source section and outputs a voltage obtained by superimposing the detected voltage over a detected voltage which is available from the current detecting circuit; and a control circuit which controls, based on the output voltage from the power source ripple detecting circuit, an output voltage to the discharge lamp so that the current flowing through the discharge lamp becomes a constant current. A rate of superimposition of the output voltage from the power source ripple detecting circuit may be switched in accordance with the discharge lamp voltage.