Samsung Electronics Co., Ltd.

Myoung-Jong Song

Ik-Soo Kim

Myung-jin Eom

In-sik Park

Young-sun Seo

Jung-wan Ko

Han-kook Choi

Hee-Wan Lee

Young-han Kim

Seung-Man Kim

Jang-Hun Ru

Jea-Chun Ru

Gyeong-Chan Park

Young-Gi Byun

Young-chul Kim

Ik-soo Kim

Hao-kook Choi

Myung-Jin Eom

A personal learning apparatus and method using a terminal which supports an electronic book function in a wireless communication network are provided. The personal learning method includes: distributing, by a master device, learning data to the terminal within a wireless communication service area; collecting, by the master device, learning results based on the learning data from the terminal provided with the learning data; and storing, by the master device, the collected learning results.

Personal learning apparatus and method based on wireless communication network

A method of synchronizing a first device capable of displaying video content and including the video content, and a second device capable of displaying E-book content associated with the video content and including the E-book content. The first device is connected to the second device according to a specific protocol. In response to a specific event for the video content or the E-book content occurring in one of the first and second devices, the device in which the specific event occurs generates event information about the specific event and transmits it to the other of the first and second devices, and performs the specific event according to the event information. Upon receiving the event information, the other of the first and second devices performs the specific event according to the received event information in synchronization with the device in which the specific event occurred, using synchronization information between the video content and the E-book content.

Apparatus and method for synchronizing E-book content with video content and system thereof

A video recording apparatus to record a television program with an optimal quality according to a residual quantity of a recording medium and a method therefor. The video recording apparatus detects the residual quantity of the recording medium and a running time of the television program to be recorded on the recording medium, to determine an optimal image compression ratio. Then, the video recording apparatus records the television program based on the determined optimal image compression ratio, making the best use of the residual quantity of the recording medium.

Method and video recording apparatus for recording a television program

An optical recording/reproducing apparatus capable of using disc cartridges of at least two different sizes and/or a naked disc, on only one tray. The optical recording/reproducing apparatus is also capable of recording and/or reproducing information on/from one of the discs mounted on the tray by automatically detecting the disc cartridges and/or the naked disc positioned on the tray. The optical recording/reproducing apparatus has a case, a tray mounted to the case capable of being received and withdrawn into/from the case, and selectively accommodating disc cartridges of at least two different sizes, a support to support the disc cartridges positioned on the tray according to the size of the disc cartridges, a detection unit to detect the sizes of the disc cartridges positioned on the tray and the state of the discs accommodated in the disc cartridges, a rotating unit to rotate the discs in the disc cartridges positioned on the tray, and a recording/reproducing unit to record information on and/or reproduce the information from the discs rotated by the rotating unit.

Optical information recording/reproducing apparatus and method for using both disc cartridges holding 8cm and 12cm disc

An optical recording and/reproducing apparatus is capable of using a selected one of various types of recording/reproducing mediums including disc cartridges of at least two different sizes, a naked disc, and an adapter containing a disc having a diameter of 8 cm, by positioning the selected recording/reproducing mediums on one tray. The apparatus includes a tray mounted to the case and receivable into and withdrawable from the case. The tray accommodates the selected recording/reproducing medium so as to prevent movement of the recording/reproducing medium relative to the tray. A detecting section detects the size of the selected recording/reproducing medium positioned on the tray, and a state of a disc accommodated therein. A rotating section rotates the disc. An information recording/reproducing section records information onto, and/or reproduces information from, the disc rotated by the rotating section.

Optical recording/reproducing apparatus and method for using various sizes, and types of recording/reproducing mediums therein

An optical disk reproducing apparatus having playback systems of CD and DVD containing their respective sync signals and method thereof. The playback systems respectively have sync detectors, and a controller analyzes a sync signal output from the sync detectors when a disk is detected to be mounted. The CD playback system is selectively driven when a CD sync signal is detected to perform a CD playback mode, and the DVD playback system is selectively driven when a DVD sync signal is detected to perform a DVD playback mode.

Disk detecting device and method

Optical information recording/reproducing apparatus and method for using both disc cartridges holding 8CM and 12CM disc

A pickup actuator employed in an optical device for recording/reproducing information on/from an optical disc by using an optical device. The pickup actuator has a base member, a pair of yokes disposed at the base member and spaced from each other at a predetermined distance, a pair of magnets respectively attached to inner side surfaces of the yokes, a lens holder which is suspended by two pairs of wire springs so as to be moved toward directions of focusing and tracking in a space defined between the magnets, and on which an objective lens is mounted, a driving coil disposed at the lens holder, for driving the lens holder toward directions of focusing and tracking by electromagnetically interacting with the magnets, a pair of supporting plates disposed on the wire springs adjacent to opposite sides of one of the magnets, and a damping fluid applied between the pair of supporting plates and both opposite side portions of the one magnet, respectively for damping the vibration occurring at the lens holder when the lens holder is driven. Accordingly, when a vibration at the lens holder occurs, the vibration is directly damped by the damping fluid disposed between the one magnet and the wire springs which are supporting by the lens holder. Thus, an objective lens is allowed to reach a designated spot more rapidly. Accordingly, the pickup actuator can be employed in an optical device having the vibration of high intensity, such as in automobiles, etc.

Growing community of inventors

Suwon, South Korea

Myoung-Jong Song