(19)
(11) EP 1 587 219 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.06.2006 Bulletin 2006/26

(43) Date of publication A2:
19.10.2005 Bulletin 2005/42

(21) Application number: 05103587.1

(22) Date of filing: 29.05.1990
(51) International Patent Classification (IPC): 
G11B 20/10(2006.01)
G10L 19/02(2006.01)
 G11B 20/00(2006.01)
G10L 19/14(2006.01)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 13.02.1990 NL 9000338

(62) Application number of the earlier application in accordance with Art. 76 EPC:
99202037.0 / 0949763
94200240.3 / 0599825
90201356.4 / 0402973

(71) Applicants:
  • Koninklijke Philips Electronics N.V.
    5621 BA Eindhoven (NL)
  • FRANCE TELECOM
    75015 Paris (FR)
  • S.A. TELEDIFFUSION DE FRANCE
    75015 Paris (FR)
  • Institut für Rundfunktechnik GmbH
    80939 München (DE)

(72) Inventors:
  • Lokhoff, Gerardus, C. P., c/o Philips Int. P. & S.
    5600 AE, Eindhoven (NL)
  • Déhery, Yves, F., c/o Philips Int. P. & S.
    5600 AE, Eindhoven (NL)
  • Theile, Günther, c/o Philips Int. P. & S.
    5600 AE, Eindhoven (NL)
  • Stoll, Gerhard, c/o Philips Int. P. & S.
    5600 AE, Eindhoven (NL)

(74) Representative: van der Kruk, Willem Leonardus 
Philips Intellectual Property & Standards P.O. Box 220
5600 AE Eindhoven
5600 AE Eindhoven (NL)

   


(54) Record carrier having an encoded wideband digital audio signal recorded on it


(57) Reproduction accuracy of a digital signal, representing for example stereo audio signals, is improved by transmitting sample data, which have been encoded to form transmission signals. The stereo audio signals are coded into sub(band) signals. Corresponding sub(band)signals of the stereo audio signals may be processed to obtain composite sub(band) signals, which are recorded on a record carrier.
To identify whether corresponding sub(band) signals have been processed or not, a mode indicator control signal indicating whether a corresponding sub signal of the at least two signal components have or have not been processed into a composite sub signal is also being recorded on the record carrier.







Search report