摘要:
A plasma display panel has a first substrate, plural pairs of display electrodes, a second substrate, and plural data electrodes. Each pair of the display electrodes is made up of a scanning electrode and a sustain electrode which are arranged parallel to each other on the first substrate. The second substrate is disposed opposite to the first substrate. A discharge space is formed between the first substrate and second substrate. The data electrodes are arranged in a direction perpendicular to the display electrodes on the second substrate. The data electrode is wider in peripheral portion of the second substrate than in a central portion of the second substrate.
摘要:
In the method for driving a plasma display panel and the plasma display device, the scan electrodes of the plasma display panel are divided into two scan electrode groups, the address period of subfields is divided into two address periods corresponding to the two scan electrode groups, and at least in one address period, the scan electrodes belonging to the scan electrode group provided with scan pulses are sequentially provided with scan pulses shifting from second voltage higher than scan pulse voltage to scan pulse voltage and shifting again to second voltage, and the scan electrodes belonging to the scan electrode group not provided with scan pulses are provided with either third voltage higher than scan pulse voltage or fourth voltage higher than second voltage and third voltage, and with third voltage at least while scan pulse voltage is applied to adjacent scan electrodes.
摘要:
Disclosed is an antenna device that improves the antenna gain and reduces the correlation for a MIMO antenna. Said antenna device is provided with a first housing (101) and a second housing (102). In a folding handheld terminal wherein the first housing (101) and the second housing (102) are rotatably connected by a hinge (202), the first housing (101) is provided with a first power-supply unit (107) and the second housing (102) is provided with a second power-supply unit (108). An antenna element (201) is provided inside the first housing (101) near the hinge (202). One end of the antenna element is open, and the first power-supply unit (107) and second power-supply unit (108) supply power through the other end of the antenna.
摘要:
A plurality of subfields of a field period includes a subfield for performing an every-cell initialization causing an initial discharge in every discharge cell in an initialization period, and includes a subfield for performing a selective initialization causing the initial discharge in a predetermined discharge cell in the initialization period. In a low-luminance subfield, the every-cell initialization is performed, and a low-luminance subfield is subsequently located (in the field period) to the subfield for the every-cell initialization. In a sustain period of the subfield for performing the every-cell initialization or a sustain period of the low-luminance subfield, a width of a first sustain pulse is set wider than a width of a second sustain pulse, and the width of the second sustain pulse is set wider than the width of a third sustain pulse and subsequent others.
摘要:
A two-phase driving operation is performed by a first circuit and a second circuit in at least one sub-field. The first circuit applies a first ramp waveform that drops from a first potential to a second potential to a plurality of first scan electrodes in a setup period, and sequentially applies a scan pulse to the plurality of first scan electrodes in a write period. The second circuit applies a second ramp waveform that drops from the first potential to a third potential that is higher than the second potential to a plurality of second scan electrodes in the setup period, and holds the second scan electrodes at a fourth potential that is higher than the third potential in a period where the scan pulse is applied to the first scan electrodes, and then sequentially applies a scan pulse to the plurality of second electrodes in the write period. Discharge failures during write discharges can be prevented from occurring by applying the two-phase driving operation.
摘要:
In producing gas hydrate pellets by compression-molding a gas hydrate powder, heat generated in a compressing part is removed with a simple method so as to reduce the degree of gas hydrate decomposition, and a gas hydrate aggregate blocking the compressing part is promptly and easily removed. A gas-hydrate-pellet production apparatus A is characterized by including: a roll-cooling mechanism which causes cooling water to flow through outer peripheral portions and/or insides of rolls 6a and 6b, thereby cooling the rolls 6a and 6b, and also cools the cooling water 43 discharged after the flow and supplies the cooled cooling water 43 to the outer peripheral portion and/or the inner portion of each of the rolls 6a and 6b; and/or heating means provided in a part of a hopper chamber 5 from which the gas hydrate powder n is fed to the rolls 6a and 6b.
摘要:
In a steering apparatus for a vehicle which has a steering mechanism for steering steerable road wheels by means of a steering wheel operated by a driver and an electrically controllable auxiliary steering angle superposition mechanism, and in which a target auxiliary steering angle is set in accordance with a steering wheel angle, and an electric motor of the auxiliary steering angle superposition mechanism is driven and controlled according to the target auxiliary steering angle, the rotation of the electric motor 212 is inhibited without regard to the state of the driving control. A short-circuit relay 13 is provided for short-circuiting opposite terminals of the electric motor 212, and the short-circuit relay 13 is operated so as to short-circuit the opposite terminals of the electric motor 212 through a short-circuit relay driving unit 14 in accordance with the kind of a failure detected by a failure detection unit 18, whereby the rotation of the electric motor 212 is inhibited. In addition, when a power supply to the steering apparatus for a vehicle is interrupted, the short-circuit relay 13 operates, without power supply, to short-circuit the opposite terminals of the electric motor 212.
摘要:
A voltage of sustain electrodes (SU1 to SUn) is lowered from Ve1 to a ground potential at a time point t1 immediately before a first SF (sub-field). Then, a pulsed positive voltage Vd is applied to data electrodes (D1 to Dm) at a starting time point t2 of a setup period of the first SF. Immediately before this, a large amount of negative wall charges is stored on the sustain electrodes (SU1 to SUn) and positive wall charges are stored on the data electrodes (D1 to Dm), and therefore application of the pulsed positive voltage Vd to the data electrodes generates strong discharges between the sustain electrodes (SU1 to SUn) and the data electrodes (D1 to Dm). After that, application of a ramp voltage to scan electrodes (SC1 to SCn) is started at a time point t3, generating setup discharges between the scan electrodes (SC1 to SCn) and the sustain electrodes (SU1 to SUn).
摘要:
A molding machine for production of gas hydrate pellets under a high pressure in gas hydrate forming conditions, which is inexpensive through minimizing of the use of expensive mechanical seal. The molding machine comprises two forming rolls each fitted to a rotary shaft whose both ends are supported by bearings; a drive unit for rotating the forming rolls; a screw transfer unit for supplying powder to the forming rolls; and a high-pressure vessel, wherein the bearings, the rotary shaft and the forming rolls are all disposed in the high-pressure vessel.
摘要:
A transmission ratio varying mechanism is configured such that transmission of rotation between a first steering shaft and an eccentric rotary plate is performed via a first rotation transmitting ball group that engages with a third cycloidal groove and a first cycloidal groove and such that transmission of rotation between the eccentric rotary plate and a second steering shaft is performed via a second rotation transmitting ball group that engages with a second cycloidal groove and a fourth cycloidal groove.