Koninklijke Philips Corporation N.v.

Helmut Unger

Wolfgang Wimmer

Christoph Apel

Herbert Treml

A reproduction apparatus ( ) for reproducing data (A, D, ID) stored on a rotary drivable optically readable data carrier ( ) includes drive means ( ) for driving the data carrier ( ) in accordance with a drive signal (AS), and drive control means ( ) for generating a controlled drive signal (S ) while the read data (AD) are used, and detection means ( ) for detecting whether data (AD) suitable for generating the controlled drive signal (S ) are available, and additional drive control means ( ) for generating a controlled drive signal (S ), and control means ( ) which are arranged for enabling the data carrier ( ) to be driven in accordance with the controlled drive signal (S ) when data (AD) suitable for driving the data carrier ( ) are lacking.

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Vienna, Austria

Helmut Unger