Lg Electronics Inc.

Hee Il Wang

Jong Rak Lim

Byung Ju Dan

In Sang Song

Nam Woong Kim

Jang Won Boo

Jae Ho Na

A method for compensating a rotational position error of a robot cleaner is disclosed to reduce a rotational position error of a robot cleaner by compensating an offset value of a gyro sensor of the robot cleaner. The method includes: detecting an offset value of a sensor for detecting a rotational speed of a robot cleaner; compensating the detected offset value; and correcting a rotational position of the robot cleaner on the basis of the compensated offset value.

Method for compensating rotational position error of robot cleaner

A toy having a detachable central processing unit is disclosed and includes a central processing unit having a growth algorithm for learning purposes, a driving unit for exhibiting learned actions and functions, and a link unit for linking the central processing unit and the driving unit. When the central processing unit is detached from the driving unit, the toy can learn via a cyber character or can be utilized as a Personal Digital Assistant (PDA), mobile phone, or a personal computer. When the driving unit is linked to the central processing unit, the toy's learning abilities are improved.

Toy having detachable central processing unit

Growing community of inventors

Seoul, South Korea

Hee Il Wang