Abstract:
A condensed cyclic compound represented by Formula 1: Ar1-L1-L2-Ar2 Formula 1 wherein Ar1, Ar2, L1, and L2 are the same as described in the specification.
Abstract:
A light emitting diode (LED) driving device is provided. The LED driving device includes a rectifier configured to generate a rectified voltage, wherein the rectifier is directly connected to an input node of a light source including LEDs; a regulator configured to output a direct current (DC) power supply voltage using the rectified voltage; a microcontroller including a control terminal and a power terminal, wherein the microcontroller is configured to generate a dimming control signal based on a voltage input, receive the DC power supply voltage through the power terminal and output the dimming control signal through the control terminal; a driver configured to control an LED current to flow through the LEDs based on the dimming control signal; and a switch connected between a control node and a ground node, wherein an output terminal of the regulator and the control terminal are connected to the control node.
Abstract:
Disclosed is an electronic apparatus which executes an artificial intelligence algorithm using a convolution calculation unit and memory local to the electronic apparatus.
Abstract:
A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, rings, groups and variables are the same as defined in the specification.
Abstract:
A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
Abstract:
A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, X1 to X8, X11 to X18, Y11, and Z11 to Z14 are the same as described in the specification.
Abstract:
A method for a transmitter of a mobile communication system transmitting and receiving signals according to an embodiment of the present specification comprises the steps of: transmitting to a receiver system information for transmitting a signal to the receiver including a connection between a wireless resource and a transmitting antenna; transmitting a reference signal to the receiver based on the system information; and receiving from the receiver feedback information generated based on the reference signal. According to an embodiment of the present specification, in a beamforming transmission method of a mobile communication system, a transmitter can determine whether to perform digital pre-coding without advance information from a receiver and can consequently perform a transmission, and can thereby perform lower-overhead and efficient signal transmission/reception.
Abstract:
An apparatus and a method for photographing an image in an electronic device having a camera are disclosed. The electronic device may include an image sensor, an image signal processor configured to process an image obtained by the image sensor, an audio processing unit configured to process a sound received from a microphone, a storage unit configured to store data, and a control unit configured to implement the method. The method may include recording for a set period of time, a series of images and a series of sounds using the image sensor and the microphone when a sound photographing mode is active, selecting a particular sound from the series of sounds having a high correlation with a particular image from the series of images, and synthesizing the particular sound with the particular image and store in the storage unit the synthesized particular sound with the particular image.