Patent application number | Description | Published |
20090195901 | Circuits for vcm back emf measurement with a bias voltage to control head flying location on disk - A hard disk drive with a voice coil motor coupled to a head. The head moves relative to a disk. The voice coil motor receives a biasing voltage and has a back emf voltage. A test circuit is coupled to the voice coil motor to determine the back emf voltage. The back emf voltage can be used to analyze low frequency vibration in the disk drive. The test circuit can be constructed so that the back emf voltage is proportional to a pair of test resistors and/or a pair of test inductors. The biasing voltage allows the back emf voltage to be measured and analyzed while the head is at any location from the ID to the OD of the disk. | 08-06-2009 |
20100284113 | ACTUATOR LATCH FOR MINIMIZING EFFECT OF NON-OPERATIONAL ROTARY SHOCK IN A LOAD-UNLOAD (LUL) HARD DISK DRIVE - This application discloses a Load-UnLoad (LUL) hard disk drive comprising a disk base, a spindle motor mounted on the disk base for rotating at least one disk to create at least one rotating disk surface, and a head stack assembly pivotably coupled to the disk base and configured to engage an actuator latch when the sliders of the head stack assembly are to be parked. The actuator latch includes a latch beam coupled through a latch pivot to the disk base and a boss coupled to the latch beam and configured to limit the stroke of latch motion in the event of a rotary non-operational shock. | 11-11-2010 |
20110211280 | METHOD AND APPARATUS FOR AT LEAST ONE ACTUATOR ARM DAMPER COVERING AT LEAST ONE LIGHTENING HOLE IN A HARD DISK DRIVE TO REDUCE TRACK MIS-REGISTRATION (TMR) - This application discloses a hard disk drive, a head stack assembly, an actuator arm, and an arm damper configured for coupling to an actuator arm to create the head stack assembly used in the hard disk drive. The actuator arm has two arm dampers covering a lightening hole on either side of the actuator arm and configured to reduce the effects of airflow turbulence and mechanical vibration in the hard disk drive. Also disclosed, methods of operating the hard disk drive and of manufacturing for the head stack assembly and the hard disk drive. | 09-01-2011 |
20120287533 | DISK DRIVE SYSTEM WITH AIR DAMPER AND METHOD OF MANUFACTURE THEREOF - A method comprising: providing an arm actuation comprises a lightning hole; and attaching an air damper having a channel on the actuator arm and over the lightning hole, the air damper has the channel from a perimeter of the air damper. | 11-15-2012 |
Patent application number | Description | Published |
20110002039 | POLARIZATION CONVERTING DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present disclosure relates to a polarization converting device and a method for manufacturing the same, wherein the polarization converting device includes a polarization separation unit aligned with a plurality of unit blocks including an optical separator transmitting a first polarization between an upper surface and a lower surface and reflecting a second polarization, and a phase retarder aligned in correspondence to an upper surface of each unit block of the polarization separation unit where a first region and a second region are alternately formed, wherein any one of the first and second regions of the phase retarder converts the polarized light while the other region emits the polarized light as it is. | 01-06-2011 |
20110194076 | Projector - Disclosed is a projector, the projector including a light source, an illumination unit illuminating light incident from the light source, and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit. | 08-11-2011 |
20110242491 | PROJECTOR OPTICAL SYSTEM - Disclosed is a projector optical system, the system including an illumination unit including illumination lenses illuminating light downwards, a display device receiving light illuminated from the illumination lenses to enable to realize an image, projection lenses downwardly projecting light emitted from the display device to a screen, and a field lens changing an optical angle of the light illuminated from the illumination lenses and emitting the light to the display device, and changing an optical angle by receiving an image light of the display device and emitting the light to the projection lenses. | 10-06-2011 |
20110242656 | Polarization Conversion Apparatus - Disclosed is a polarization conversion apparatus, the apparatus including a first optical device capable of angle-converting incident unpolarized light to allow a polarization direction to be emitted in mutually different first and second linear polarizations, an FEL (Fly Eye Lens) including first and second MLAs (Micro Lens Arrays) arrayed with first and second micro lenses, where first and second linear polarizations of the first optical device incident on the first micro lenses are divided and condensed on an upper side and a bottom side of the second micro lenses of the second MLA, and a second optical device converting the first and second linear polarizations condensed on the upper side or the bottom side of the second MLA at the FEL to any one polarization of the first and second linear polarizations and emitting the polarization. | 10-06-2011 |
20110249239 | PROJECTION SYSTEM - A projection system is disclosed, the projection system including: an illumination unit; a PBS (Polarizing Beam Splitter) reflecting the light from the illumination unit, transmitting an image light, having a width larger than that of entrance pupil through which the image light is incident, and having a structure in which a width of an area facing projection lenses is larger than that of an area perpendicular to an area facing the projection lenses; a display device receiving the light reflected from the PBS and outputting the light as an image light; and a projection unit mounted with the projection lenses for projecting the image light outputted from the display device to a screen. | 10-13-2011 |
20120099083 | COLOR WHEEL UNIT AND PROJECTION SYSTEM USING THE SAME - A color wheel unit according to the exemplary embodiments of the present invention is characterized by: a motor; a substrate rotated by the motor; and a plurality of light emitting diodes (LEDs) mounted on the substrate, wherein the substrate is divided into a plurality of regions, and at least one of the regions is mounted with the plurality of light emitting diodes, and the region mounted with the plurality of light emitting diodes is mounted with light emitting diodes emitting the same color. | 04-26-2012 |
20120154766 | PROJECTION SYSTEM - A projection system is characterized by: a first light source unit and a second light source unit selectively driven in response to operation mode; a light transmitting unit transmitting light emitted from the first light source unit or the second light source unit in the form of surface light; an image generator generating an image in response to an image signal using the light transmitted from the light transmitting unit; and a projection lens system projecting the image by enlarging the image generated by the image generator and projecting the enlarged image. | 06-21-2012 |
20150015849 | PROJECTOR - Disclosed is a projector, the projector including a light source, an illumination unit illuminating light incident from the light source, and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit. | 01-15-2015 |
Patent application number | Description | Published |
20130344905 | TERMINAL AND CONTROLLING METHOD THEREOF - A terminal and controlling method thereof are disclosed. The present invention includes detecting whether a message transmission command is inputted in the course of driving the vehicle, when the message transmission command is inputted, creating a message including at least one information provided by at least one application provided to the terminal, and transmitting the created message. | 12-26-2013 |
20150207644 | MOBILE TERMINAL AND METHOD FOR CONTROLLING SAME - The present invention relates to a mobile terminal capable of controlling a navigation device and to a method for controlling same. The method for controlling the mobile terminal includes the steps of: receiving home information generated by home appliances, which includes product information; outputting the received home information to a display unit and detecting purchase reservation commands for the products; searching for a navigation device positioned on a predetermined street in response to the purchase reservation commands; and transmitting destination setting commands to the navigation device, together with the home information, in order to allow a found navigation device to set a destination related to the products. | 07-23-2015 |
20150230056 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE SAME - The present invention relates to an electronic device capable of providing route information and a method for controlling same. An electronic device capable of providing route information according to an embodiment of the present invention includes a wireless communications unit, a search unit for searching out a destination inputted by the user, a display unit for setting, as a destination, one of the places searched out by the search unit and for displaying the route of the set destination, and a control unit for sending a control signal to control at least one electric home appliance based on an expected time of arrival at the destination. | 08-13-2015 |