Samsung Electronics Co., Ltd.

Snu Rdb Foundation

Avikus Co., Ltd.

Jun Sik Lee

Sung Woo Kim

Yongsuk Park

Seung-Woo Seo

Gwang Hyeok Choi

Dong Hyun Je

Wang Seok Jang

Sae Yong Park

The present disclosure relates to a method and a device generating a navigational route using an integrated electronic chart, which includes receiving a plurality of electronic charts with different scales; extracting at least one overlapping area of the plurality of electronic charts; integrating the plurality of electronic charts into the integrated electronic chart; dividing the integrated electronic chart into a configurable grid; generating an initial route using first object information in the configurable grid; mapping second object information detected by a sensing device onto the integrated electronic chart; and resetting the initial route using the second object information. According to the method and device of the present disclosure, the integrated electronic chart allows for efficient use of computing resources. Overall route calculation time and memory usage is reduced, and each area is accurately expressed.

Method and apparatus for generating an integrated electronic chart for route setting

A system and method of updating a key based on communication and security damage costs are provided. The key updating system for group communication between a plurality of group members, includes a key update cycle determining unit to determine a key update cycle based on a communication cost and a security damage cost, and a key updating unit to perform a key updating with respect to one or more group members of the group communication based on the determined key update cycle.

System and method of updating key based on communication cost and security damage cost

Growing community of inventors

Seoul, South Korea

Jun Sik Lee