Abstract: A clothes separating device and a clothes processing apparatus including the clothes separating device according to this disclosure are provided with a separator that operates to grip clothes in a washing tub and to separate, from the gripped clothes, another item of clothes entwined with the gripped clothes. In this manner, a user does not need to separate a plurality of individual items of clothes before folding the clothes. Hence, it is possible to provide the clothes separating device that contributes to reducing a burden of work related to laundry and a clothes processing apparatus including the clothes separating device.

Abstract: A clothes separating device and a clothes processing apparatus including the clothes separating device according to this disclosure are provided with a separator that operates to grip clothes in a washing tub and to separate, from the gripped clothes, another item of clothes entwined with the gripped clothes. In this manner, a user does not need to separate a plurality of individual items of clothes before folding the clothes. Hence, it is possible to provide the clothes separating device that contributes to reducing a burden of work related to laundry and a clothes processing apparatus including the clothes separating device.

Abstract: A disk storage apparatus including a position detection section for producing position error information corresponding to the current position of a head from servo information which has been previously recorded on a disk and is detected by the head, a position control section for producing position control information corresponding to the position error information, a voltage detection section for detecting a voltage generated in driving an actuator for positioning the head with respect to the disk, and for outputting a voltage signal, a disturbance estimation section for estimating the magnitude of a disturbance exerted on the head from the voltage signal by the voltage detection section and from a drive signal by a drive section of the actuator, and producing disturbance estimation information, a correction section for correcting the position control information by the position control section with the disturbance estimation information and producing the drive signal, and a disturbance monitor section for m

Abstract: A self-servo reference signal including a timing pattern and an oblique phase pattern is transferred in advance on a magnetic disk 1 by magnetic printing. A phase difference detection section 13 detects a phase difference between the two patterns to detect the position of a magnetic head 2. A burst signal generated by a record signal generation section 14 is recorded in a region of the magnetic disk 1 where no self-servo reference signal is recorded. A track pitch calculation section 11 determines a relationship between the reproduction output of the burst signal detected by a reproduction signal processing section 12 and the phase difference detected by the phase difference detection section 13, thus calculating an optimum data track pitch.

Abstract: In a disk storage apparatus having an actuator for loading/unloading a magnetic head with respect to a magnetic disk, a voltage signal generated when the actuator is driven is detected by a voltage detector, a speed load estimator estimates moving speed of the head and level of load disturbance added to the magnetic head from a driving signal in a driver of the actuator and the voltage signal, and outputs a speed estimating signal and a load estimating signal, a speed controller generates and outputs a speed control signal based on a speed command signal and the speed estimating signal, a synthesizer generates a driving signal from the load estimating signal and a speed control signal, and the apparatus loads and unloads the head at a stable speed against the load disturbance caused by friction or the like on a ramp block.

Abstract: A head positioning apparatus capable of positioning a head at high speed and with high accuracy is provided. The head positioning apparatus includes a magnetic head, a head supporting mechanism, a coarse actuator, a fine actuator, a head position detection part, a fine movement control system for controlling the fine actuator based on the head position detected by the head position detection part, a head moving distance estimation part estimating the head moving distance representing the distance the magnetic head moves, and the coarse movement control system for controlling the coarse actuator based on the head moving distance estimated by the head moving distance estimation part.

Abstract: A head positioner has a configuration employing a dual-stage actuator method, wherein positioning control is performed for a write/read according to cooperative operations of a coarse actuator and a fine actuator, and the fine actuator is configured using a piezoelectric device. A positioning control unit for controlling the coarse actuator and the fine actuator is configured to include a coarse control system including a coarse drive unit for driving the coarse actuator and coarse control unit for controlling the coarse drive unit, a fine control system including a fine drive unit for driving the fine actuator and a fine control unit for controlling the fine drive unit. In addition, a driving-signal limiting unit is provided. The piezoelectric device is prone to property deterioration because of erosion due to an electrochemical reaction.

Abstract: A first estimator 13 estimates the position of a head based on a VCM driving signal u1 and a voltage signal Va output from a VCM 6 to output a first head position estimation signal x1est. The first estimator 13 estimates the disturbance acting on a head supporting mechanism 8 to output a disturbance estimation signal ?dest. A second estimator 15 estimates the displacement of the head based on a control signal c2 for a fine adjustment actuator 7 to output a displacement estimation signal x2est. The first head position estimation signal x1est and the displacement estimation signal x2est are added together to obtain a second head position estimation signal xest. A position error signal e is generated using a head position signal x obtained by detecting the servo information and the second head position estimation signal xest. A disturbance compensator 10 synthesizes a VCM control signal c1 with the disturbance estimation signal ?dest to generate the VCM driving signal u1.

Abstract: A head positioning system includes: a positioning mechanism section 1 for positioning a head 12; a position controller 2 for detecting a head position signal x to output a position control signal Ux; a velocity detector 3 for detecting the relative velocity of the head 12 with respect to a disk 7 based on the head position signal x; a counter electromotive voltage detector 4 for outputting an estimated head velocity signal Ve2 that is obtained by estimating the absolute velocity of the head 12 based on a counter electromotive voltage signal Vs of an actuator 50; an estimated velocity corrector 5 for correcting an estimation error of the estimated head velocity signal Ve2 based on a velocity signal detected from the head position signal x so as to output a corrected estimated velocity signal Ve2?; and an estimation controller 6 for outputting a velocity control signal Uv based on the corrected estimated velocity signal Ve2?, wherein the actuator 50 is controlled by a control amount signal U that is obtained by

Abstract: A disk apparatus includes: an actuator 7; a driver 10; a voltage detector 11 for outputting first voltage signal Ed which is produced in a driving coil 5 of the actuator 7; a voltage signal adjuster 16 for outputting pseudo disturbance signal ur and generating second voltage signal Ed+ from pseudo disturbance signal ur, driving signal u, first voltage signal Ed, and disturbance estimation signal ?dest; a disturbance estimator 12 for estimating the magnitude of disturbance load ?d applied to a magnetic head 2 from driving signal u and second voltage signal Ed+ to output disturbance estimation signal ?dest; a position detector 13 for generating position error signal e which corresponds to a current position of the magnetic head 2; a position controller 14 for generating control signal c from position error signal e; and a corrector 15 for generating driving signal u from disturbance estimation signal ?dest and position control signal c.

Abstract: A position detector generates a position error signal corresponding to a current position of a head, a position controller generates a position control signal from the position error signal, a voltage detector detects a voltage signal generated when driving an actuator by a driver, a disturbance estimator generates a disturbance estimation signal from a driving signal and the voltage signal, and a corrector outputs the driving signal from the disturbance estimation signal and the position control signal. The disturbance estimator includes a comparator which compares the disturbance estimation signal with a voltage signal and which outputs a deviation signal, and an adder which adds a signal obtained by multiplying an integral signal, which is obtained by integrating the deviation signal, by a first coefficient and a signal obtained by multiplying a proportional signal proportional to the deviation signal by a second coefficient, and which generates the disturbance estimation signal.

Abstract: A disk storage apparatus includes: an actuator positioning a head with respect to a disk; a drive device driving the actuator; a voltage detection device detecting a voltage signal induced in driving the actuator; a disturbance estimation unit estimating the magnitude of load disturbance exerted on the head from a drive signal and the voltage signal, and outputting a disturbance estimation signal; a filter unit cutting off a high frequency component of the disturbance estimation signal, and outputting a filter signal; a position detection unit producing a position error signal corresponding to a current position of the head; a position control unit producing a position control signal based on the position error signal; and a correction unit outputting the drive signal based on the filter signal and the position control signal, and the apparatus controls stable positioning of the head against a resistance value fluctuation of a drive coil of the actuator and a resistance value change.

Abstract: A self-servo reference signal including a timing pattern and an oblique phase pattern is transferred in advance on a magnetic disk 1 by magnetic printing. A phase difference detection section 13 detects a phase difference between the two patterns to detect the position of a magnetic head 2. A burst signal generated by a record signal generation section 14 is recorded in a region of the magnetic disk 1 where no self-servo reference signal is recorded. A track pitch calculation section 11 determines a relationship between the reproduction output of the burst signal detected by a reproduction signal processing section 12 and the phase difference detected by the phase difference detection section 13, thus calculating an optimum data track pitch.

Abstract: A disk apparatus includes: an actuator 7; a driver 10; a voltage detector 11 for outputting first voltage signal Ed which is produced in a driving coil 5 of the actuator 7; a voltage signal adjuster 16 for outputting pseudo disturbance signal ur and generating second voltage signal Ed+ from pseudo disturbance signal ur, driving signal u, first voltage signal Ed, and disturbance estimation signal &tgr;dest; a disturbance estimator 12 for estimating the magnitude of disturbance load &tgr;d applied to a magnetic head 2 from driving signal u and second voltage signal Ed+ to output disturbance estimation signal &tgr;dest; a position detector 13 for generating position error signal e which corresponds to a current position of the magnetic head 2; a position controller 14 for generating control signal c from position error signal e; and a corrector 15 for generating driving signal u from disturbance estimation signal &tgr;dest and position control signal c.

Abstract: A head positioning apparatus capable of positioning a head at high speed and with high accuracy is provided. The head positioning apparatus includes a magnetic head 15, a head supporting mechanism 14, a coarse actuator 12, a fine actuator 13, a head position detection part 7, a fine movement control system 8 for controlling the fine actuator 13 based on the head position detected by the head position detection part 7, a head moving distance estimation part 3 estimating the head moving distance representing the distance the magnetic head 15 moves, and the coarse movement control system 4 for controlling the coarse actuator 12 based on the head moving distance estimated by the head moving distance estimation part 3.

Abstract: A head positioning system includes: a positioning mechanism section 1 for positioning a head 12; a position controller 2 for detecting a head position signal x to output a position control signal Ux; a velocity detector 3 for detecting the relative velocity of the head 12 with respect to a disk 7 based on the head position signal x; a counter electromotive voltage detector 4 for outputting an estimated head velocity signal Ve2 that is obtained by estimating the absolute velocity of the head 12 based on a counter electromotive voltage signal Vs of an actuator 50; an estimated velocity corrector 5 for correcting an estimation error of the estimated head velocity signal Ve2 based on a velocity signal detected from the head position signal x so as to output a corrected estimated velocity signal Ve2′; and an estimation controller 6 for outputting a velocity control signal Uv based on the corrected estimated velocity signal Ve2′, wherein the actuator 50 is controlled by a control amount signal U that is

Abstract: A first estimator 13 estimates the position of a head based on a VCM driving signal u1 and a voltage signal Va output from a VCM 6 to output a first head position estimation signal x1est. The first estimator 13 estimates the disturbance acting on a head supporting mechanism 8 to output a disturbance estimation signal &tgr;dest. A second estimator 15 estimates the displacement of the head based on a control signal c2 for a fine adjustment actuator 7 to output a displacement estimation signal x2est. The first head position estimation signal x1est and the displacement estimation signal x2estare added together to obtain a second head position estimation signal xest. A position error signal e is generated using a head position signal x obtained by detecting the servo information and the second head position estimation signal xest. A disturbance compensator 10 synthesizes a VCM control signal c1 with the disturbance estimation signal &tgr;dest to generate the VCM driving signal u1.

Abstract: A position detection means generates a position error signal corresponding to a current position of a head, a position control means generates a position control signal from the position error signal, a voltage detection means detects a voltage signal generated when driving an actuator by a driving means, a disturbance estimation means generates a disturbance estimation signal from a driving signal and the voltage signal, and a correction means outputs the driving signal from the disturbance estimation signal and the position control signal.

Abstract: A disk storage apparatus includes: an actuator positioning a head with respect to a disk; a drive means driving the actuator; a voltage detection means detecting a voltage signal induced in driving the actuator; a disturbance estimation unit estimating the magnitude of load disturbance exerted on the head from a drive signal and the voltage signal, and outputting a disturbance estimation signal; a filter unit cutting off a high frequency component of the disturbance estimation signal, and outputting a filter signal; a position detection unit producing a position error signal corresponding to a current position of the head; a position control unit producing a position control signal based on the position error signal; and a correction unit outputting the drive signal based on the filter signal and the position control signal, and the apparatus controls stable positioning of the head against a resistance value fluctuation of a drive coil of the actuator and a resistance value change.

Abstract: A head positioner has a configuration employing a dual-stage actuator method, wherein positioning control is performed for a write/read according to cooperative operations of a coarse actuator and a fine actuator, and the fine actuator is configured using a piezoelectric device. A positioning control unit for controlling the coarse actuator and the fine actuator is configured to include a coarse control system including a coarse drive unit for driving the coarse actuator and coarse control unit for controlling the coarse drive unit, a fine control system including a fine drive unit for driving the fine actuator and a fine control unit for controlling the fine drive unit. In addition, a driving-signal limiting unit is provided. The piezoelectric device is prone to property deterioration because of erosion due to an electrochemical reaction.