Abstract: An operation method of a relay node may include: receiving, from a first communication node, first data composed of n bits; receiving, from a second communication node, second data composed of m bits; in response to determining that n is greater than m, generating first T-data of m bits excluding (n-m) bits from the n-bits of the first data and first R-data of (n-m) bits; generating third data by performing a network coding operation on the first T-data and the second data; transmitting the third data to the first communication node; and transmitting the third data and the first R-data to the second communication node.

Abstract: Disclosed are a page turning method for turning the pages of an electronic chart through a user interaction, and a computing device. The page turning method allows a user's interactive operation on an electronic chart to be sensed by considering the user's behavior of retrieving medical treatment details of a patient from a conventional paper chart, and allows pages of the electronic chart to be adjusted according to the sensed interactive operation so that a desired page of the user can be moved in the electronic chart and displayed on a screen.

Abstract: A data security system controls access to and interfaces with a computer system by requiring user verification through fingerprint sensing. The data security system includes a security module having a fingerprint sensor, image data, and an application interface that is generated by the security module and communicative with the computer system. The image data is associated with a fingerprint of a user through the use of the security module.