Method for recording and/or reproducing data using a digital video tape
AssigneeSamsung Electronics Co., Ltd.
InventorTaek-soo Han
Life of this patent
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Abstract
A method for performing a trick play in a digital video tape apparatus for recording and/or reproducing an advanced television (ATV) signal is performed such that the data area of a sync block forming an audio sector and a video sector in a track is divided into a first area and a second area to record and reproduce normal-play data and trick-play data for a normal play and a trick play, respectively. The area corresponding to 5.6 Mbps is used for trick-play data in the case of an ATV signal; a separate data area for the error correction coding of a trick-play data is not necessary. Also, since trick plays of speeds of even-number times are available within the range of the maximum multiple speed, a diversity of speeds for a trick-play mode are allowed.
Claims12
A method for recording data onto a digital video tape by dividing an ATV signal into normal-play data for performing a normal-play operation and trick-play data for performing a trick-play operation, wherein said ATV signal contains frame data which are supplied in a predetermined interval and can be decoded independently, said method comprising the steps of:
- dividing the data area of a sync block forming an audio sector and a video sector of each track of said digital video tape into a first area and a second area;
- recording said normal-play data in said first area and said trick-play data in said second area;
- and
- repeatedly recording identical trick-play data in sync blocks of a number of tracks, said number of tracks corresponding to twice a maximum even-multiple speed number among a plurality of even-multiple speeds, when said trick-play data is recorded in said second area.
A method for recording data onto a digital video tape by dividing an ATV signal into normal-play data for performing a normal-play operation and trick-play data for performing a trick-play operation, wherein said ATV signal contains frame data which are supplied at a predetermined interval and can be decoded independently, said method comprising the steps of:
- dividing the data area of a sync block forming a video sector of each track of said digital video tape into a first area and a second area;
- recording said normal-play data in said first area and said trick-play data in said second area;
- and
- repeatedly recording identical trick-play data in sync blocks of a number of tracks, said number of tracks corresponding to twice a maximum even-multiple speed number among a plurality of even-multiple speeds, when said trick-play data is recorded in said second area.
A recording method for recording data onto a digital video tape by dividing an ATV signal into normal-play data for performing a normal-play operation and trick-play data for performing a trick-play operation, wherein said ATV signal contains frame data which are supplied at a predetermined interval and can be decoded independently, said method comprising the steps of:
- dividing the data area of a sync block forming an audio sector of each track of said digital video tape into a first area and a second area;
- recording said normal-play data in said finest area and said trick-play data in said second area;
- and
- repeatedly recording identical trick-play data in sync blocks of a number of tracks, said number of tracks corresponding to twice a maximum even-multiple speed number among a plurality of even-multiple speeds, when said trick-play data is recorded in said second area.
A method for reproducing an ATV signal containing frame data supplied at a predetermined interval and decoded independently, said ATV signal being divided into normal-play data for performing a normal-play operation and trick-play data for performing a trick-play operation and said normal-play data and trick-play data being respectively recorded in first and second areas of each track of a digital video tape, said method comprising the steps of:
- scanning the data-recorded area of said digital video tape by means of a head;
- decoding said trick-play data by scanning said first area in which normal-play data is recorded and said second area in which trick-play data is recorded, said second area including sync blocks of a number of tracks where identical trick-play data is recorded, said number of tracks corresponding to twice a maximum playback speed, and by scanning an inner parity error correction area;
- and
- reproducing said trick-play data by decoding said trick-play data by scanning an outer parity error correction area of said second area.
Dependencies are inferred from the claim text.