Lg Electronics Inc.

Byung Ju Dan

Jong Rak Lim

Hong J Jin

In Chang Yang

Hee Il Wang

In Sang Song

Byeong Rim Jo

Nam Woong Kim

Young Mo Goo

Jang Won Boo

Jae Ho Na

Provided are a method for emulating a separate contents memory unit into an optical disk, an optical disk drive using the same, and an optical disk including a security zone. In the method, when an optical disk processing command from a host is present, whether an optical disk is present in the optical disk drive is judged. When the optical disk is not present in the optical disk drive as a result of the judgment, the contents memory unit is executed as a virtual optical disk. An application stored in the contents memory unit is displayed. The optical disk drive includes an optical disk storage unit, a contents memory unit, and a controller. The optical disk storage unit stores or reproduces contents using an optical disk. The contents memory unit stores contents therein and is executed as a virtual optical disk when the optical disk is not present. The controller controls the optical disk storage unit and the contents memory unit, and controls an access to be made, subject to the contents memory unit. The optical disk includes a fake zone that is accessible by all users without an authentication procedure, and a security zone that is accessible through the authentication procedure. Accordingly, a user can receive and use desired contents using the optical disk drive even when a disk is not present.

Method for emulating optical disk, optical disk drive using the same, and optical disk including security zone

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

A deck mechanism of a headphone stereo which is capable of minimizing a tension working on a belt and of controlling a rotation torque transmitted to a reel in an FF or REW mode by transmitting a driving force of a driving motor by a power transmission gear unit, includes a power transmission gear unit for transmitting a driving force of the driving motor, a mode selector for transmitting the driving force transmitted by the power transmission gear unit according to a selected mode, a reel driver for driving a reel according to the selection of the mode selector, a power transmission idler unit moving according to the play direction of the reel driver, and a capstan driver for driving a capstan through a belt transmission by a selective engagement of the power transmission idler unit.

Deck mechanism of headphone stereo

An improved driving force transmitting apparatus for a headphone stereo mechanism capable of reducing the number of parts necessary for transmitting the driving force is disclosed. The apparatus provides an idler engaged to a motor-side gear for increasing a driving force efficiency. The apparatus includes a motor having a drive gear disposed at a central shaft thereof and disposed at the lower surface of a main base, an idler gear intermeshed with the drive gear and having an idler pulley, and a reverse capstan pulley and a forward capstan pulley rotatable by a belt directly connected to the idler pulley of the idler gear.

Driving force transmitting apparatus for headphone stereo mechanism

Growing community of inventors

Seoul, South Korea

Byung Ju Dan