Line Corporation

Solid, Inc.

Line Plus Corporation

Naver Business Platform Corporation

Dongwon Lee

Jungjun Park

In Won Cho

Jongjin Cho

Sun Young Park

YoungSik Kim

A connection service providing method includes outputting, by a first user terminal from among a plurality of user terminals, a connection request signal to at least one second user terminal among the plurality of user terminals through an inaudible frequency range based on a trigger signal for initiating a connection between the plurality of user terminals; and connecting the at least one second user terminal and the first user terminal as a group; and providing a connection service associated with the group on the first user terminal.

Method and apparatus for connecting user terminals as a group and providing service including contents associated with the group

Provided is a method of measuring quality of a video call between a transmitting terminal including processing circuitry and a receiving terminal, the method including processing, by the processing circuitry, original frames included in an original video based on a video call service; replacing, by the processing circuitry, real-time video frames acquired from a camera for a video call with a receiving terminal with at least a portion of the original frames; and transmitting, by the processing circuitry, the portion of the original frames to the receiving terminal as frames for the video call with the receiving terminal through the video call service.

Method and system for real time measuring quality of video call service

Disclosed is a computer-implemented navigation method including transmitting, to a counterpart terminal, current location-based video data that is input to a video call screen of a terminal during a video call; receiving instruction information for a navigation based on the video data from the counterpart terminal that displays the video data on a video call screen of the counterpart terminal; generating navigation information by mapping the instruction information to the video data of the terminal; and providing the navigation information based on location information of the terminal.

Method and system for navigation using video call

Provided are a method, a system, and a non-transitory computer readable record medium for enhancing a video quality of a video call. A video call method may enhance and thereby forward a picture quality of a main object or a main portion in a video and thereby enhance a picture quality of experience of a recipient of a video call.

Method, system, and non-transitory computer readable record medium for enhancing video quality of video call

Provided is a method and system for automatically connecting a call of a Voice over Internet Protocol (VoIP) service. A method of automatically connecting the VoIP call in an electronic device implemented by a computer may include a setting a specific counterpart among counterparts capable of making the VoIP call over a network as an automatic connection target; and automatically connecting a call with the specific counterpart immediately in response to executing a program including a function of providing the VoIP call without performing a calling operation and an acceptance operation for a call between a user of the electronic device and the specific counterpart.

Method and system for automatically connecting calls of voice over internet protocol (VOIP) service

A base station interface device including an interface board, which is located in a housing and determines an upper portion of a first surface as a first mounting location and an upper portion of a second surface opposite to the first surface as a second mounting location, including a relay connector wherein one end is exposed to the upper portion of the first surface and the other end is exposed to the upper portion of the second surface; a base station signal matching unit mounted on the first mounting location and including a first connector coupled to the one end of the relay connector; and a base station signal processing unit mounted on the second mounting location and including a second connector coupled to the other end of the relay connector.

Base station interface device of distributed antenna system

Disclosed is a method of measuring a video call quality of a mobile terminal, the method including establishing a video call between a transmitting terminal and a receiving terminal; modifying a video capture function provided from a terminal operating system (OS) and inserting a sequentially increasing index and timestamp into each video frame that is automatically acquired through a camera every time a video call application (app) of the transmitting terminal calls the video capture function; transmitting, by the transmitting terminal, the video frame to the receiving terminal; storing, by the receiving terminal, the video frame at a ratio higher than a frame per second (FPS) of the transmitting terminal; and extracting the index and the timestamp from the stored video frame through an optical character reader (OCR) text recognition and calculating a quality index.

Method and system for checking video call quality of mobile terminal

A system and method for concealing bandwidth reduction of a VoIP call voice is provided. In a method for dynamic bandwidth extension during a call session between a first transceiver device and a second transceiver device, the first transceiver device compares a bit rate of received packet data with a threshold bit rate, and the first transceiver device determines whether to perform bandwidth extension during the call session based on the comparison. The bit rate is controlled based on a degree of network congestion between the first transceiver device and the second transceiver device.

Systems and methods for suppressing and/or concealing bandwidth reduction of VoIP voice calls

Disclosed is a base station device including a an interface board, which is located in a housing and has a first surface and a second surface opposite to the first surface, comprising a relay connector of which one end is exposed on the first surface and an opposite end is exposed on the second surface; a base station signal matching unit mounted on the first surface and comprising a first connector coupled to the one end of the relay connector; and a base station signal processing unit mounted on the second surface and comprising a second connector coupled to the opposite end of the relay connector.

Growing community of inventors

Seongnam-si, South Korea

Dongwon Lee