Lg Electronics Inc.

Sap Se

Industry-academic Cooperation Foundation

Byunghoon Kim

Yunjung Yi

Joonkui Ahn

Song Chong

Okyoung Choi

Changgyoo Park

Jeongho Kwak

Implementations of the present disclosure include associating a first transaction executed within a database system with a first transaction control block (TCB) index, setting a status of the first transaction to active and a lock status of the first transaction to holding in response to a first set of locks being established for the first transaction, the first set of locks including one or more locks that each inhibit access to a respective resource within the database system, providing a lock table that records, for a set of locks within the database system, a set of lock owners including one or more transactions identified based on respective TCB indexes and a wait queue, and determining that the first transaction has completed, and in response setting the status of the first transaction to indicate completion of the transaction and the lock status of the first transaction to released.

Time-efficient lock release in database systems

A data transmission method of a terminal device according to an embodiment of the present invention may comprise the steps of: identifying a probability density function for battery consumption by time by accumulating information on a user's battery consumption pattern; identifying information on next charging time (T); identifying the battery depletion probability using the probability density function and the next charging time (T); and transmitting data if the battery depletion probability is less than a predetermined threshold value.

Data transmission method according to battery use pattern

Growing community of inventors

Seoul, South Korea

Byunghoon Kim