Samsung Electronics Co., Ltd.

Toshiba Samsung Storage Technology Korea Corporation

Hee-deuk Park

In-sik Park

Han-kook Choi

Young-sun Seo

Dong-Ho Shin

Jung-wan Ko

Kyu-hyeong Lee

Jong-phil Park

Pyong-yong Seong

Jae-Sung Kim

Young-min Cheong

Jong-pil Park

Myung-do Oh

Joong Hun Yeom

An optical disc drive (ODD) including a tray having a spindle motor, an optical pickup unit, and a transfer motor, may have first and second flat cables. The first flat cable may be connected to the transfer motor, and the second flat cable may have a first terminal part connected to the first flat cable and a second terminal part connected to a circuit board. The circuit board may be arranged at the front of the tray. The second flat cable may include a plurality of signal lines covered by an insulator. One or more exposure parts may be formed in the second flat cable to expose at least one of the plurality of signal lines. An electric actuator of a locking unit may be connected to the one or more of the plurality of signal lines through the one or more exposure parts.

Optical disc drive having a cable for connecting electric devices

An optical disc drive including a case in which a circuit board is provided, a tray on which an optical disc is mounted and is installed in the case capable of sliding in and out of the case, a main base coupled to the tray wherein the main base includes, a spindle motor to rotate the optical disc, a bracket to support the spindle motor, an optical pickup to access the optical disc, and a driving motor to drive the optical pickup. The optical disc drive also includes a flexible printed circuit electrically connecting the circuit board and the tray, on which a ground pattern is formed, and a base cover coupled to the main base to protect the main base. An exposure portion of the ground pattern is formed on part of the flexible printed circuit, and a contact portion electrically contacting the exposure portion of the ground pattern is formed on the base cover so that static electricity applied to the base cover is grounded.

Optical disc drive

A cartridge having a sensor hole to be opened/closed and a method and an apparatus for driving the same. To improve a problem that a cartridge receiving a DVD-RAM disc which has been once withdrawn therefrom performs the recording process under the same conditions as a bare disc, the disclosed cartridge has a unit for flexibly opening/closing the sensor hole in accordance with a result of a defect check, so that information processing process is greatly accelerated.

Cartridge having sensor hole to be opened/closed and apparatus and method for driving the same

An adaptor includes a sensor hole to be open/closed, and a method and an apparatus drive the adaptor. The adaptor includes at least one sensor hole determining the size of a disc received in an adaptor body which is received via a disc holder. The disc holder includes an elastic press extended therefrom and elastically support the disc, preventing a movement of the disc until the disc holder is inserted into the adaptor body. Further, a release is disposed on the adaptor body to release the disc from the elastic press when the disc holder is inserted into the adaptor body. A method for driving the adaptor includes determining whether the sensor hole is open; and determining the type of device inserted into a disc drive. The type of drive inserted into the disc drive is determined by the adaptor accommodating an 8-cm disc when the sensor hole is open, while a cartridge accommodates a 12-cm disc when the sensor hole is closed. An apparatus for driving the adaptor includes a sensing switch to be selectively inserted into the sensor hole of the inserted adaptor to be turned on/off and transmit the corresponding signal regarding the open/closed state of the sensor hole to a microcomputer.

Disc accomodating adaptor and a method and apparatus for driving the same

An optical pick-up feeding device for easily adjusting an optical pick-up device to be perpendicular with respect to a surface of an optical disc. The optical pick-up feeding device includes a feeding section to feed the optical pick-up device, a guiding section to guide the optical pick-up device while it is fed by the feeding section, and an adjusting section to adjust the guiding section so that the optical axis of the optical pick-up device is perpendicular with respect to the surface of the optical disc. The feeding section has a lead screw to feed the optical pick-up device and a stepping motor to rotate the lead screw. The guiding section has a pair of guide shafts, and is adjusted by adjusting holders engaged with each end of one of the guide shafts and one end of the other guide shaft. Also, the optical axis of the optical pick-up device is adjusted to be perpendicular with respect to the surface of disc so that the recording/reproducing of data thereto/therefrom by an optical disc player is smoothly performed. Advantages are apparent in that the perpendicularity of the optical axis of the pick-up device is easily adjusted, vibration of the optical pick-up device is prevented, and the optical pick-up device is accurately positioned at an expected position to access the optical disc.

Optical pick-up feeding device

An optical pickup includes a rotary block rotatably installed on a fixed base; a holder integrally coupled to the rotary block; a bobbin supported by a wires of the holder to be movable; a base plate fixed to the fixed base and placed between the rotary block and the bobbin; an objective lens mounted in the bobbin, for focusing an incident light to form a spot of light on a recording medium; a focusing coil and tracking coils installed in the bobbin, serving as a current flow path for focusing and tracking operations; first magnets and first inner and outer yokes installed in the base plate, facing the focusing coil and the tracking coils, for producing magnetic fields perpendicular to the current flowing through the focusing coil and the tracking coils to produce an electromagnetic force for driving the bobbin; a fixed optical system for irradiating light toward the recording medium and receiving the light reflected by the recording medium and then passed through the objective lens; a reflecting mirror for changing the traveling path of the incident light, the reflecting mirror installed in the rotary block to be arranged between the objective lens and the fixed optical system; tilt coils serving as a current flow path, the tilt coils installed at both sides of the rotary block; and second magnets and second inner and outer yokes installed facing the tilt coils, for producing magnetic fields perpendicular to the current flowing through the tilt coils to produce an electromagnetic force for rotating the rotary block. Therefore, the tilt of the optical axis of the light incident onto and reflected by an optical disk through the reflecting mirror and the objective lens can be adjusted according to the tilt of the recording medium, such that the light is perpendicularly incident onto and reflected by the recording medium all the time.

Optical pickup having a tilt mechanism to adjust an optical axis of an incident light beam

A tilt adjusting apparatus includes a deck base having a loading ring, a bracket formed with a slot, the bracket including a spindle motor for rotating a disc and a turn table on which the disc is loaded, a supporting part disposed between the loading ring and the bracket for horizontally supporting the disc and the turn table by supporting the bracket, and a tilt adjusting part rotatably mounted to the deck base for adjusting a tilt of the disc. The bracket is easily suppoted to the deck base to be horizontal by increasing a supporting area of the tilt adjusting part. Both a radial tilt and a tangential tilt of the turn table and the disc can be easily adjusted.

Growing community of inventors

Sungnam, South Korea

Hee-deuk Park