Samsung Sds Co., Ltd.

Sung-Hak Song

Chang-Hoon Lee

Jae-Sung Kim

Joong-Bae Jeon

Jin-Bum Hwang

Kyu-Ha Choi

Soon-Kyu Park

Yun-Ho Jo

Young-Ho Jang

A file transmission apparatus is proposed for increasing transmission speed of files, wherein the apparatus determines whether a transmission target file is a first transmission file prior to transmission of the transmission target file and transmits the transmission target file using a different transmission scheme according to a result of the determination.

Apparatus and method for transmitting file using a different transmission scheme according to whether the file is a first transmission file

A drone control apparatus and method are disclosed. The drone control apparatus according to an exemplary embodiment of the present disclosure includes a communication unit that communicates with a drone operation system and a drone over a wireless communication network, a storage unit that stores radio wave environment information of the wireless communication network according to a spatial position, and flight restriction information, and a determination unit that determines a flight path and a flight altitude of the drone based on a radio map, the flight restriction information, and a departure and a destination of the drone received from the drone operation system, and transmits the flight path and the flight altitude to at least one of the drone and the drone operation system via the communication unit.

Drone control apparatus and method

Provided are a data transmission apparatus and a method for the data transmission apparatus to transmit a plurality of packets constituting transmission data to a receiving end. The data transmission apparatus for transmitting a plurality of packets constituting transmission data to a receiving end includes a packet-specific weight calculator configured to calculate packet-specific weights of respective transmission-scheduled original packets at a current time point among the plurality of packets, a packet converter configured to generate one or more error recovery packets from the original packets according to the calculated packet-specific weights, and a transmitter configured to transmit the error recovery packets to the receiving end using a plurality of sessions capable of transmission.

Apparatus and method for data transmission

Provided are an apparatus and method for ensuring fairness of user datagram protocol (UDP) data transmission in an Ethernet environment. Transmission control protocol (TCP) transmission rate calculator calculates a current TCP transmission rate based on amount of a TCP data stream transmitted in real time from a transmission apparatus and received by a reception apparatus. TCP transmission rate calculator calculates the optimum transmission rate on the basis of the received amount of a TCP data stream transmitted to the reception apparatus before UDP data transmission of the transmission apparatus is started. When UDP data is transmitted from a transmission apparatus to a reception apparatus, a TCP data stream for determining fairness is transmitted together, so that the apparatus and method can be simplified by adding only the TCP stream without an additional module for estimating a queuing delay time on the basis of a round-trip time (RTT) and so on.

Growing community of inventors

Seongnam-si, South Korea

Sung-Hak Song