Koninklijke Philips Corporation N.v.

Aik Seng Yak

Madan Pushpakath

Wooi Liang Chin

Canniputhur Santhana Krishnan Sanjay Krishnan

Disclosed is an apparatus for reading information recorded on the track of a data carrier (). The apparatus comprises a rotating device () for supporting and rotating the data carrier () around an axis of rotation (). The rotating device () comprises a turntable () and a motor () for rotating the turntable (). The apparatus according to the invention is able to suppress a wobble introduced by the data carrier () when rotated. This is done by a flexible part () in the rotating device (). In an embodiment the supporting surface of the turntable () comprises the flexible part (). This allows the data carrier () to tilt in radial and tangential direction. The centrifugal forces, which are present when rotation the data carrier (), are able to level the data carrier (), thus reducing the wobble.

Apparatus for reading information, supporting means for use in the apparatus and method for rotating a data carrier

Disclosed is an apparatus for reading information recorded on the track of a data carrier (). The apparatus comprises rotating means () for supporting and rotating the data carrier () around an axis of rotation (). The rotating means () comprises a turntable () and a motor () for rotating the turntable (). The apparatus according to the invention is able to suppress a wobble introduced by the data carrier () when rotated. This is done by a flexible part () in the rotating means (). In an embodiment the supporting surface of the turntable () comprises the flexible part (). This allows the data carrier () to tilt in radial and tangential direction. The centrifugal force which are present when rotation the data carrier (), are able to level the data carrier (), thus reducing the wobble.

Apparatus for reading information, supporting means for use in the apparatus and method for rotating a date carrier

A device for recording and/or reproducing an optical record carrier (), comprises an optical system for projecting a first, a second and a third optical beam at a first (), a second () and a third spot () at the record carrier (). The device further comprises detection elements primary position signals (D, C, D) which is indicative for an amount of radiation reflected by the record carrier at said thoses spots (). The device further comprises signal processing means () for generating a plurality of secondary position signals (S, S, S, S) in response to the primary position signals (D, C, D). A selection element () selects one of the position signals (S, S, D, S, S) as an output signal (WRE) in response to a selection signal (SEL). The selection signal (SEL) is derived from the output signal (WRE) of the selection element ().

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Singapore, Singapore

Aik Seng Yak