Abstract: Due to a characteristic of a switching element, a current leaks into a display element in an undisplayed region through the switching element to thereby cause a speckled pattern to occur in the undisplayed region. In addition to a supply of scanning signals to scanning lines corresponding to display elements in a displayed region, scanning signals are also supplied to scanning lines corresponding to display elements in the undisplayed region to thereby inhibit the speckled pattern from occurring.

Abstract: An information recording method in a rotating storage apparatus comprising a rotating recording medium for recording information, a head for performing at least a write operation onto the rotating recording medium, and an acceleration sensor for detecting a shock. The method comprises outputting a shock out signal if an output from the acceleration sensor exceeds a predetermined threshold. A signal is output at a first level during a write inhibit period in response to the input of the shock out signal, where the write inhibit period is selected based at least in part on a time span in which the output of the acceleration sensor exceeds the predetermined threshold. Writing to the rotating recording medium is prohibited during the write inhibit period.

Abstract: A rotating storage apparatus is provided for high recording reliability in an environment in which a shock or vibration exists. Provided are means for outputting a shock out signal (SO) if an output from an acceleration sensor exceeds a predetermined threshold, a latch circuit 21 for outputting a latch signal at high level during a predetermined write inhibit period after the shock out signal (SO) is input, and a write gate signal (WG) which goes high when a write is enabled. A write enable signal is generated by an AND circuit 23 having a NOT output of the latch signal as well as the write gate signal WO as its inputs.

Abstract: A method and apparatus for resolving a “continuity” problem that occurs when modes are switched in the head positioning control process, and a contradiction exists between a short seek and a long seek.

Abstract: A data storage device that can perform a track following process even when vibrations are produced by a wide range of frequencies.

Abstract: A rotating storage apparatus is provided for high recording reliability in an environment in which a shock or vibration exists. Provided are means for outputting a shock out signal (SO) if an output from an acceleration sensor exceeds a predetermined threshold, a latch circuit 21 for outputting a latch signal at high level during a predetermined write inhibit period after the shock out signal (SO) is input, and a write gate signal (WG) which goes high when a write is enabled. A write enable signal is generated by an AND circuit 23 having a NOT output of the latch signal as well as the write gate signal WO as its inputs.

Abstract: An ON/OFF control signal 105 directive of turning ON in a transmissive display mode or turning OFF in a reflective display mode is output by an ON/OFF state controlling means 111 to a light source 115. The ON/OFF control signal 105 is also output to a data signal converting means 104, and the data signal converting means 104 converts a data signal 102 into a data signal 103 in synchronization with the switching of ON and OFF of the light source 115 so as to prevent positive-negative inversion of the display on a liquid crystal panel 114. A data signal potential supplying means 112 supplies a potential of a data signal based on the data signal 103 to a data signal line 113 so as to drive the liquid crystal panel 114.

Abstract: A rotating storage apparatus is provided for high recording reliability in an environment in which a shock or vibration exists. Provided are means for outputting a shock out signal (SO) if an output from an acceleration sensor exceeds a predetermined threshold, a latch circuit 21 for outputting a latch signal at high level during a predetermined write inhibit period after the shock out signal (SO) is input, and a write gate signal (WG) which goes high when a write is enabled. A write enable signal is generated by an AND circuit 23 having a NOT output of the latch signal as well as the write gate signal WG as its inputs.

Abstract: A disk drive has a data recording medium such as a disk, a spindle motor for rotating the disk, disk rotation speed controlling logics for supplying a spindle current to the above described spindle motor to rotate the disk at a constant speed, a head unit for accessing the disk, an actuator for moving the head unit, and head position controlling logics for driving the actuator and controlling the position of the head unit. The head position controlling logic obtains the value of the spindle current and controls the position of the head unit on the basis of the above described spindle current value by using the fact that the spindle current varies according to variations in the position of the head unit.

Abstract: An aluminum electrolytic capacitor has a capacitor element provided with an anode lead terminal and a cathode side lead terminal, a bottomed shield containing the capacitor element and a sealing rubber sealing an opening of the bottomed shield. The number of lead terminals of anode side and cathode side lead terminals, respective lead terminal being drawn out onto the same level of the bottomed shield, is selected from a number range of 2 to 4.

Abstract: Disclosed is a polishing system used for polishing a surface to be polished of an object to be polished by a polishing pad, which is capable of improving uniformity of the surface to be polished of the object to be polished by positively, accurately adjusting a polishing pressure, and a polishing method using the polishing system. Concretely, the surface to be polished of a wafer as the object to be polished is polished by relatively moving, along a plane, a polishing surface of the rotating polishing pad and the surface to be polished of the wafer in slide-contact with each other, and adjusting a pressing force applied from the polishing pad to the wafer in accordance with a polishing pressure previously set depending on a relative-positional relationship between the polishing surface of the polishing pad and the surface to be polished of the wafer.

Abstract: A method and apparatus for resolving a “continuity” problem that occurs when modes are switched in the head positioning control process, and a contradiction exists between a short seek and a long seek.

Abstract: A data storage device that can perform a track following process even when vibrations are produced by a wide range of frequencies.

Abstract: Disclosed is a polishing system used for polishing a surface to be polished of an object to be polished by a polishing pad, which is capable of improving uniformity of the surface to be polished of the object to be polished by positively, accurately adjusting a polishing pressure, and a polishing method using the polishing system. Concretely, the surface to be polished of a wafer as the object to be polished is polished by relatively moving, along a plane, a polishing surface of the rotating polishing pad and the surface to be polished of the wafer in slide-contact with each other, and adjusting a pressing force applied from the polishing pad to the wafer in accordance with a polishing pressure previously set depending on a relative-positional relationship between the polishing surface of the polishing pad and the surface to be polished of the wafer.

Abstract: A method to enable servo information to be detected surely and stably even when a time interval between servo sectors is changed due to disk shifting. A time interval TS(i) is calculated according to an internal variable value, which is in proportion to a displacement &Dgr;r(i) of a servo area SF(i) in a radial direction of a subject disk (step S6). The displacement &Dgr;r(i) is calculated from already detected servo information[, thereby]. Thereby, a time interval for detecting servo information is adjusted according to the above described time interval TS(i) (steps S7 and S4). The time interval TS(i) is the time interval between passing of a servo sector in the servo area SF(i) under the head H and passing of a servo sector in the servo area SF(i+1) under the head H.

Abstract: An ON/OFF control signal 105 directive of turning ON in a transmissive display mode or turning OFF in a reflective display mode is output by an ON/OFF state controlling means 111 to a light source 115. The ON/OFF control signal 105 is also output to a data signal converting means 104, and the data signal converting means 104 converts a data signal 102 into a data signal 103 in synchronization with the switching of ON and OFF of the light source 115 so as to prevent positive-negative inversion of the display on a liquid crystal panel 114. A data signal potential supplying means 112 supplies a potential of a data signal based on the data signal 103 to a data signal line 113 so as to drive the liquid crystal panel 114.

Abstract: A liquid crystal display method is provided in which various types of display patterns can be displayed with a predetermined driving voltage margin being maintained and power consumption does not increase. Accordingly, a driving method for a liquid crystal display device is provided using liquid crystal having two metastable states. A scanning signal has a reset period, a delay period, a selection period and a non-selection period in one frame period. The selection period is set to one horizontal scanning period 1H. The scanning signal is set to reset potentials reversed at an interval of a frame period in the reset period, set to selection potentials reversed at an interval of 1H/2 in the selection period, and set to non-selection potentials in the delay period and the non-selection period. The data potential of a data signal has potentials reversed at an interval of 1H/2.

Abstract: A disk drive and a disk drive control method is described which reduces the number of one track seeks a drive performs. The one track seeks can operate the actuator bearing in a non-linear mode or can increase in the friction of the actuator bearing which leads to servo positioning inaccuracies. In the disk drive the logical block address (LBA) assignments are made so that when sequential addresses are allocated to two different tracks, the tracks are physically non-adjacent. Thus, when a sequential LBAs are read across a track boundary, the actuator is moved farther than would be required if the LBAs were assigned the adjacent tracks.

Abstract: An ON/OFF control signal 105 directive of turning ON in a transmissive display mode or turning OFF in a reflective display mode is output by an ON/OFF state controlling means 111 to a light source 115. The ON/OFF control signal 105 is also output to a data signal converting means 104, and the data signal converting means 104 converts a data signal 102 into a data signal 103 in synchronization with the switching of ON and OFF of the light source 115 so as to prevent positive-negative inversion of the display on a liquid crystal panel 114. A data signal potential supplying means 112 supplies a potential of a data signal based on the data signal 103 to a data signal line 113 so as to drive the liquid crystal panel 114.

Abstract: A disk drive has a data recording medium such as a disk, a spindle motor for rotating the disk, disk rotation speed controlling logics for supplying a spindle current to the above described spindle motor to rotate the disk at a constant speed, a head unit for accessing the disk, an actuator for moving the head unit, and head position controlling logics for driving the actuator and controlling the position of the head unit.