Magnetic-tape recording apparatus , magnetic-tape recording method, magnetic tape, and recording medium
AssigneeSony Corporation
InventorsToshitaka Yoshihiro, Takuro Enomoto, Fumiyoshi Abe, Tomoo Hayakawa
Life of this patent
Estimating the term…
Abstract
Data for variable-speed reading (such as 16-times-faster reading) is distributed and recorded at positions where a trace is to be made during the variable-speed reading. When data recording is performed by an MPEG method, for example, data for generating an I picture is recorded.
Claims13
A magnetic-tape recording apparatus for recording digital image data into a track on a magnetic tape by a rotating head, comprising:
- inputting means for inputting the digital image data;
- extracting means for extracting digital image data for variable-speed reading, from the digital image data input by the inputting means;
- and
- recording means for recording digital image data extracted by the extracting means into only a first area positioned at almost the center of the track, or recording the digital image data in a distribution manner into the first area and a second area to be traced during variable-speed reading, positioned in a track located in the vicinity of the track which includes the first area.
A magnetic-tape recording method for a magnetic-tape recording apparatus for recording digital image data into a track on a magnetic tape by a rotating head, comprising:
- an input control step of controlling the input of the digital image data;
- an extracting step of extracting digital image data for variable-speed reading, from the digital image data input by a process in the input control step;
- and
- a recording control step for controlling such that digital image data extracted by the process in the extracting step is recorded into only a first area positioned at almost the center of the track, or the digital image data is recorded in a distribution manner into the first area and a second area to be traced during variable-speed reading, positioned in a track located in the vicinity of the track which includes the first area.
A recording medium storing a computer-readable program for a magnetic-tape recording apparatus for recording digital image data into a track on a magnetic tape by a rotating head, the program comprising:
- an input control step of controlling the input of the digital image data;
- an extracting step of extracting digital image data for variable-speed reading, from the digital image data input by a process in the input control step;
- and
- a recording control step for controlling such that digital image data extracted by the process in the extracting step is recorded into only a first area positioned at almost the center of the track, or the digital image data is recorded in a distribution manner into the first area and a second area to be traced during variable-speed reading, positioned in a track located in the vicinity of the track which includes the first area.
A magnetic tape, wherein digital image data for variable-speed reading is recorded into a first area positioned at almost the center of a track, or the digital image data is recorded in a distribution manner into the first area and a second area to be traced during variable-speed reading, positioned in a track located in the vicinity of the track which includes the first area.
Dependencies are inferred from the claim text.