METHOD AND DEVICE FOR RECORDING AND/OR REPRODUCING DATA SIGNALS, SIGNAL CARRIER, METHOD FOR LOCATING DATA FIELD AND DEVICE FOR DETECTION OF SYNCHRONIZATION FROM DATA SIGNAL

摘要

An information recording medium on which a data signal having a variable frequency oscillator (VFO) signal part (46) and a data signal part (48) are recorded, wherein an indicator (47) having a pattern distinguishable from a pattern used in the VFO signal part is included at a predetermined position within the VFO signal part, a method of recording and/or reproducing the information recording medium having the indicator in the VFO signal part, and an apparatus to record and/or reproduce the information recording medium having the indicator in the VFO signal part.