Abstract: A clothing management apparatus including: a body including a reception space to accommodate clothes to be managed; an optical sensor; a door; a display arrangeable at one side of the door; and a processor which controls the optical sensor to emit ultraviolet light, when reflected light of the emitted light is received through the optical sensor, identifies an allergen value of the clothes to be managed based on an intensity of the reflected light, identifies a degree of contamination of the clothes to be managed on the basis of the identified allergen value, and controls the display to display information on a recommended management course corresponding to the clothes to be managed on the basis of the identified degree of contamination.

Abstract: The disclosure provides a cleaner and a controlling method thereof. A cleaner according to an embodiment of the disclosure includes a suction part, a suction device which generates airflow such that dust is suctioned through the suction part, a detection device which is arranged on one side of the suction part, and emits a light of a predetermined wavelength, and detects a wavelength of a partial light emitted, and at least one processor which controls the suction device, wherein the at least one processor is configured to control the detection device to emit a light of a predetermined wavelength during an operation of the suction device, and detect whether allergen substances exist in the dust suctioned through the suction part based on a wavelength of a reflective light detected in the detection device.

Abstract: An apparatus for detecting fine dust and microorganisms includes: a sample chamber body including a sample chamber, a light-incidence port through which incident light is incident, and a first light exit port and a second light exit port for emitting the incident light irradiated to the measurement sample; a light-transmitting unit; a first light-receiving unit which separately transmits, via a first path and a second path, exiting light emitted from the first light exit port, detects scattering light from the exiting light transmitted via the first path, and detects fluorescence light of the exiting light transmitted via the second path; a diffused reflection reduction unit provided between the first light exit port and the first light-receiving unit; and a second light-receiving unit which condenses in a Mie-scattering manner and transmits exiting light emitted from the second light exit port and detects fluorescence light of the exiting light.

Abstract: An actuator of an optical disk system and an apparatus producing a signal for driving the actuator, the actuator including a light source, with which information is recorded on or reproduced from an optical disk surface. In the actuator, an inner focusing coil and an outer focusing coil are installed near an inner boundary and an outer boundary, respectively, of the optical disk surface. A first signal wire is connected to a first port of the inner focusing coil and transmits an inner coil signal. A second signal wire is connected to a first port of the outer focusing coil and transmits an outer coil signal. A common signal wire is connected to a second port of the inner focusing coil and a second port of the outer focusing coil and transmits a common reference signal. Thus, a simple, inexpensive 8-wire actuator can be obtained.

Abstract: A method of determining a type of an optical disc loaded into a data recording and/or reproducing apparatus, which includes a plurality of laser diodes and records data onto and/or reproduces data from diverse types of optical discs, and the data recording and/or reproducing apparatus for implementing the method. The method includes selecting one laser diode from among the plurality of laser diodes, radiating light onto the loaded optical disc while approaching and/or withdrawing the selected laser diode to and from the loaded optical disc, counting a number of reflection signals generated from the light reflected from the loaded optical disc, and determining the type of the loaded optical disc based on the number of reflection signals.

Abstract: A disk area type detection method and apparatus, the disk area type detection method including detecting the difference between a side push-pull (SPP) 1 signal and an SPP2 signal; and determining whether an area is a storage medium related information area or a user data area on the disk, based on the detected difference. According to the method and apparatus, the user data area and the storage medium related information area of the disk can be easily distinguished, allowing phase locked loop (PLL) control to be performed appropriately.

Abstract: An error signal detection method and apparatus for an optical recording/reproducing system.

Abstract: A physical identification data (PID) addressing method using a wobble signal, a wobble address encoding circuit, a method and circuit for detecting the wobble address and a recording medium therefor. Groove tracks are classified into odd groove tracks and even groove tracks. Address information indicating physical identification information is phase modulated using wobble signals having a predetermined phase difference between two adjacent groove tracks, and recorded in each groove track so that address information modulated using the wobble signals having the phase difference of 90° between adjacent two groove tracks can be a quadrature phase shift keying (QPSK) signal. Accordingly, a larger amount of data can be recorded on the recording medium, and since an interval in which a wobble signal disappears is not caused, recovery of a wobble clock signal can be advantageously performed.

Abstract: A method of detecting a servo error, an apparatus therefor, a disk which maintains quantity of a servo error signal, a method of controlling a servo of an apparatus for recording data on and reproducing data from a disk, a method of detecting the tracking error, and a method of detecting tilt error of the apparatus.

Abstract: A method of detecting a servo error, an apparatus therefor, a disk which maintains quantity of a servo error signal, a method of controlling a servo of an apparatus for recording data on and reproducing data from a disk, a method of detecting the tracking error, and a method of detecting tilt error of the apparatus.

Abstract: A recording and/or reproducing apparatus and a method of controlling the same. The method of controlling the apparatus for recording information in or reproducing information from a disc having a wobbled track, the method includes detecting a wobble signal recorded in the wobbled track, and removing an error component occurring during the recording or the reproducing, based on the detected wobble signal. Accordingly, errors arising from a variety of factors can be accurately compensated for during a recording or reproducing operation.

Abstract: An error signal detection method and apparatus for an optical recording/reproducing system.

Abstract: A device for automatically controlling a sled loop gain in an optical disc drive having a sled motor.

Abstract: A disc reproduction apparatus and method to reproduce an optical disc using a constant linear velocity (CLV) method. The disc reproduction apparatus includes an equalizer to receive a signal read from the optical disc and equalizing the received signal according to an equalization control signal, and a wide-capture range phase-locked loop (wide PLL) to perform a phase lock operation with regard to the received equalized signal based on a phase lock control signal. An automatic adjuster selects one of predetermined phase lock control value, according to a type of an optical disc to be used and reproduction velocity determined during initial operation, and a desired target position to read the data from the optical disc, and generates a phase lock control signal having the selected value.

Abstract: A track zero cross signal generation apparatus for use in an optical disk system receives a tracking error signal acquired when traversing tracks on a recording medium and generates a track zero cross signal. The track zero cross signal generation apparatus includes a booster which receives the tracking error signal, low-pass-filters the received tracking error signal, and amplifies the low-pass-filtered tracking error signal having a predetermined high frequency band in a pass band for low-pass-filtering. The booster outputs the low-pass-filtered tracking error signal whose signal level in a predetermined high frequency band is amplified, to a comparator.

Abstract: A track zero cross signal generation apparatus for use in an optical disk system receives a tracking error signal acquired when traversing tracks on a recording medium and generates a track zero cross signal. The track zero cross signal generation apparatus includes a booster which receives the tracking error signal, low-pass-filters the received tracking error signal, and amplifies the low-pass-filtered tracking error signal having a predetermined high frequency band in a pass band for low-pass-filtering. The booster outputs the low-pass-filtered tracking error signal whose signal level in a predetermined high frequency band is amplified, to a comparator.