Abstract: Disclosed is an LED lighting apparatus. The LED lighting apparatus may include a leakage current control unit configured to provide a leakage current path when a rectified voltage is retained at a predetermined voltage or less for a preset time or more, and a leakage current and retention current may be discharged through a leakage current path.

Abstract: A method and apparatus for personalizing a speech recognition model is disclosed. The apparatus may obtain feedback data that is a result of recognizing a first speech input of a user using a trained speech recognition model, determine whether to update the speech recognition model based on the obtained feedback data, and selectively update, dependent on the determining, the speech recognition model based on the feedback data.

Abstract: A speech signal recognition method, apparatus, and system. The speech signal recognition method may include obtaining by or from a terminal an output of a personalization layer, with respect to a speech signal provided by a user of the terminal, having been implemented by input of the speech signal to the personalization layer, the personalization layer being previously trained based on speech features of the user, implementing a global model by providing the obtained output of the personalization layer to the global model, the global model being configured to output a phonemic signal indicating a phoneme included in the speech signal through the global model being previously trained based on speech features common to a plurality of users, and re-training the personalization layer based on the phonemic signal output from the global model, where the personalization layer and the global model collectively represent an acoustic model.

Abstract: Disclosed is an LED lighting apparatus which includes LED groups and emits light in response to a change of a rectified voltage. The LED lighting apparatus includes a balancing circuit which controls the rectified voltage to be applied to the LED groups in parallel or series to each other.

Abstract: Disclosed is an LED lighting apparatus which includes LED groups and emits light in response to a change of a rectified voltage. The LED lighting apparatus includes a balancing circuit which controls the rectified voltage to be applied to the LED groups in parallel or series to each other.

Abstract: A light emitting module of an embodiment comprises: (1-1)th to (1-M)th (where M is a positive integer equal to or greater than 2) light emitting elements connected with each other; (2-1)th to (2-N)th (where N is a positive integer equal to or greater than 1) light emitting elements connected in parallel with a (1-m)th (1?m?M) light emitting elements which is one of the (1-1)th to (1-M)th light emitting elements; and an on/off controller controlling to turn the (1-1)th to (1-M)th light emitting elements and (2-1)th to (2-N)th light emitting elements on or off according to a level of an operation signal.

Abstract: A light emitting module of an embodiment comprises: (1-1)th to (1-M)th (where M is a positive integer equal to or greater than 2) light emitting elements connected with each other; (2-1)th to (2-N)th (where N is a positive integer equal to or greater than 1) light emitting elements connected in parallel with a (1-m)th (1?m?M) light emitting elements which is one of the (1-1)th to (1-M)th light emitting elements; and an on/off controller controlling to turn the (1-1)th to (1-M)th light emitting elements and (2-1)th to (2-N)th light emitting elements on or off according to a level of an operation signal.

Abstract: A light emitting module includes a plurality of light emitting device packages configured to be sequentially turned on or off according to the level of external drive voltage and connected to one another in series. Each of the plurality of light emitting device packages includes a light emitting cell having at least one light emitting device, and an on/off controller configured to control to turn the light emitting cell on or off.

Abstract: A light emitting module includes a plurality of light emitting device packages configured to be sequentially turned on or off according to the level of external drive voltage and connected to one another in series. Each of the plurality of light emitting device packages includes a light emitting cell having at least one light emitting device, and an on/off controller configured to control to turn the light emitting cell on or off.

Abstract: A light emitting module includes a plurality of light emitting device packages configured to be sequentially turned on or off according to the level of external drive voltage and connected to one another in series. Each of the plurality of light emitting device packages includes a light emitting cell having at least one light emitting device, and an on/off controller configured to control to turn the light emitting cell on or off.

Abstract: Embodiments provide a light emitting module including a body, a plurality of light emitting devices disposed on the body, and a turn-on controller configured to control turn-on of the plurality of light emitting devices. At least some neighboring light emitting devices among the plurality of light emitting devices are spaced apart from one another by different distances.

Abstract: A light emitting unit includes a plurality of light emitting devices. A control apparatus includes a rectifier for converting an alternating current (AC) signal into a ripple signal by rectifying the AC signal. A ripple signal adjuster reduces a level difference between maximum and minimum levels of the ripple signal, and outputs the resultant ripple signal as a drive signal. A turning-on controller controls turning-on of the light emitting devices in accordance with a level variation of the drive signal.

Abstract: A lighting device may be provided that includes: a first to a fourth light emitting devices which are disposed on a substrate a first and a second pulse width modulation controllers which perform a pulse width modulation on currents applied to the first and the second light emitting devices respectively; and a first and a second controllers which control respectively currents applied to the third and the fourth light emitting devices having color temperatures different from those of the first and the second light emitting devices, wherein an (x, y) coordinate, which is determined by the mixture of the lights emitted from the first to the fourth light emitting devices and is located within a 1931 CIE chromaticity diagram, is moved onto a black body radiation curve within the 1931 CIE chromaticity diagram through the pulse width modulation of the first and the second pulse width modulation controllers and the control of the first and the second controllers.

Abstract: A light emitting module includes a plurality of light emitting device packages configured to be sequentially turned on or off according to the level of external drive voltage and connected to one another in series. Each of the plurality of light emitting device packages includes a light emitting cell having at least one light emitting device, and an on/off controller configured to control to turn the light emitting cell on or off.

Abstract: Embodiments provide a light emitting module including a body, a plurality of light emitting devices disposed on the body, and a turn-on controller configured to control turn-on of the plurality of light emitting devices. At least some neighboring light emitting devices among the plurality of light emitting devices are spaced apart from one another by different distances.

Abstract: A light emitting unit includes a plurality of light emitting devices. A control apparatus includes a rectifier for converting an alternating current (AC) signal into a ripple signal by rectifying the AC signal. A ripple signal adjuster reduces a level difference between maximum and minimum levels of the ripple signal, and outputs the resultant ripple signal as a drive signal. A turning-on controller controls turning-on of the light emitting devices in accordance with a level variation of the drive signal.

Abstract: Provided are an apparatus and a method for sawing a single crystal ingot. The apparatus includes a wire saw sawing an ingot, a roller driving the wire saw, and a bath containing a liquid cooling the ingot before sawing the ingot.