Abstract: Disclosed is an automatic switching communication method including: obtaining LTE communication state information of a main communication module for communicating with outside through a directional antenna and a sub-communication module for communicating with the outside through a directional antenna; registering the LTE communication state information of the main communication module and the sub-communication module in a routing table; determining whether the main communication module and the sub-communication module are capable of performing LTE communication; and comparing with pre-specified communication quality coefficients of the main communication module and the sub-communication module to adjust a routing path.

Abstract: A clock data recovery circuit includes the following elements: a phase detector for outputting a phase adjustment signal by comparing a clock signal of a first node and an input signal; a charge pump for adjusting a charge amount of a second node according to the phase adjustment signal; a first switch including one end coupled to the second node and including another end coupled to a third node; a second switch including one end which receives a bias voltage and including another end coupled to the third node; a capacitor including a first electrode coupled to the third node; third switches; and voltage control oscillators including control terminals coupled to the third node and including output terminals coupled to the first node through the third switches.

Abstract: Disclosed is an LED lighting module (100) including a substrate (110), a (+) slug layer (121) and a (?) slug layer (123) formed on the substrate and spaced apart from each other at regular intervals, and at least one LED chip (130) formed on the (+) slug layer or the (?) slug layer to have p-type and n-type electrodes, in which the (+) slug layer and the (?) slug layer each include an electrode layer formed on the substrate and a reflection layer covering the electrode layer, and the LED chip is formed on the reflection layer.

Abstract: A method of manufacturing a horizontal power LED device includes constructing a light-emitting structure on a substrate, etching the light-emitting structure, fabricating an electrode, forming an insulating film, forming a metal substrate, removing the substrate from the light-emitting structure, and forming an n-pad. A high-power and high-efficiency horizontal LED device is manufactured by the method of manufacturing the same.

Abstract: A method of manufacturing a horizontal power LED device includes constructing a light-emitting structure on a substrate, etching the light-emitting structure, fabricating an electrode, forming an insulating film, forming a metal substrate, removing the substrate from the light-emitting structure, and forming an n-pad. A high-power and high-efficiency horizontal LED device is manufactured by the method of manufacturing the same.

Abstract: The present invention relates to a horizontal LED device and a method of manufacturing the same. More particularly, the present invention relates to a high-power and high-efficiency horizontal LED device manufactured using the advantages of conventional horizontal and vertical LEDs, and a method of manufacturing the same.

Abstract: Disclosed is an LED lighting module (100) including a substrate (110), a (+) slug layer (121) and a (?) slug layer (123) formed on the substrate and spaced apart from each other at regular intervals, and at least one LED chip (130) formed on the (+) slug layer or the (?) slug layer to have p-type and n-type electrodes, in which the (+) slug layer and the (?) slug layer each include an electrode layer formed on the substrate and a reflection layer covering the electrode layer, and the LED chip is formed on the reflection layer.

Abstract: The present invention relates to a horizontal LED device and a method of manufacturing the same. More particularly, the present invention relates to a high-power and high-efficiency horizontal LED device manufactured using the advantages of conventional horizontal and vertical LEDs, and a method of manufacturing the same.