Variable length code recording/playback apparatus
First Claim
1. A reproducing apparatus for reproducing high efficiency coded signals arranged on tracks of a tape, comprising:
- a magnetic playback head; and
means for reproducing the high efficiency coded signals, wherein positions of predetermined parts of the high efficiency coded signals are arranged in a plurality of specifically arranged areas in a cycle associated with more than one specific high speed reproducing operation in a forward or reverse direction.
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Abstract
A variable length code recording/playback apparatus, which by encoding intra-frame data and inter-frame data in variable length code, records them as recorded codes on prescribed locations of tracks of a recording medium and plays them back, which includes a data rearrange for recording the data in areas to be played back at least two specific speed mode playbacks on the tracks by rearranging prescribed data out of the data encoded in variable length code, a variable length decoder for playing back the data recorded on the recording medium and decoding it in variable length code, a data restorer for controlling and restoring the time series of the output of the variable length decoder to the original data train before the rearrangement, and a decoder for constructing a playback picture from the decoded outputs for several frames in the specific speed mode playback by decoding the output of this data restorer.
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Citations
26 Claims
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1. A reproducing apparatus for reproducing high efficiency coded signals arranged on tracks of a tape, comprising:
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a magnetic playback head; and means for reproducing the high efficiency coded signals, wherein positions of predetermined parts of the high efficiency coded signals are arranged in a plurality of specifically arranged areas in a cycle associated with more than one specific high speed reproducing operation in a forward or reverse direction. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of arranging high efficiency coded signals on a tape, comprising:
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positioning the high efficiency coded signals on both a forward trace line at a specific N-times high speed reproducing operation in the forward direction and a reverse trace line at a specific M-times high speed reproducing operation in the reverse direction; and arranging the high efficiency coded signals in specifically arranged areas along the forward trace line and the reverse trace line such that each trace line crosses more than one specifically arranged area. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21)
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20. A method of arranging high efficiency coded signals on a tape having a plurality of tracks, comprising:
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positioning the high efficiency coded signals on at least a first trace line at an N1-times high speed reproducing operation and at least a second trace line at an N2-times high speed reproducing operation, N1 and N2 being different integers; and arranging the high efficiency coded signals in specifically arranged areas along the first trace line and the second trace line such that at least the first and second trace lines which cross the same number of tracks also cross the same number of specifically arranged areas. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification