Setono
Shingo Setono, Osaka JP
Patent application number | Description | Published |
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20080298215 | Discrimination method for optical disc types and optical disc apparatus - An optical disc apparatus, which discriminates types of optical discs having different thicknesses of transparent layers by using the same wavelength of laser light, includes an aberration correction unit for correcting spherical aberration, an objective lens for condensing the laser beam onto a recording surface of an optical disc, an actuator for moving the objective lens with respect to the optical disc, a signal detection unit for delivering a focus error signal or a sum light signal, a control unit for controlling the aberration correction unit, the actuator and the signal detection unit. The control unit drives and sets the aberration correction unit so that the laser beam has a predetermined spherical aberration, performs a focus search operation of moving the objective lens to approach the optical disc in a state where the laser beam is projected onto the optical disc, and uses at least one of the focus error signal and the sum light signal delivered from the signal detection unit at a just focus position as an optical disc type discrimination signal. | 12-04-2008 |
20090122688 | Optical disk apparatus - An optical disc apparatus includes: a first signal generating portion which generates a first signal that is obtained by processing signal which is output from the photo detecting portion, and which shows a peak in case where a focus position of an objective lens is matched on a recording surface of an optical disc; a second signal generating portion which generates a second signal that is obtained by slicing the first signal at a prescribed level to be digitalized; and a movement stopping portion which stops moving of the objective lens if the second signal is asserted by existence of the recording surface that is a target to be reproduced or to be recorded, then it is negated, and the state to be negated is continued for a prescribed time interval when focus control is performed. | 05-14-2009 |
Shingo Setono, Daito-Shi JP
Patent application number | Description | Published |
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20120223878 | Information Terminal and Portable Information Terminal - This information terminal includes a control portion displaying a subsequent input item to an input item into which information has been input in a selected state where a user can input information on a display portion on the basis of a prescribed order of a plurality of input items when the user inputs the information into the input item in the selected state where information can be input, of the plurality of input items. | 09-06-2012 |
Shingo Setono, Ikoma-Shi JP
Patent application number | Description | Published |
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20150369920 | ELECTRONIC APPARATUS AND METHOD FOR MEASURING DIRECTION OF OUTPUT LASER LIGHT - An electronic apparatus includes a light source that outputs a laser light; a scanning unit that scans the laser light; a reflective member having a reflective surface that reflects the laser light; a light-receiving unit that receives a first reflected light reflected by the reflective member; and a signal processing unit that calculates a distance from the light source to the reflective surface using the first reflected light and determines a direction in which the laser light is output using the distance. | 12-24-2015 |