Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1997-12-22
2001-07-31
Tran, Thai (Department: 2615)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C360S013000, C360S015000, C386S349000
Reexamination Certificate
active
06269219
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a data transfer and recording apparatus capable of transferring data recorded on for example a hard disk to a magnetic tape by using a VTR apparatus and recording the same on the magnetic tape and to a method of the same.
2. Description of the Related Art
In recent years, editing systems using video data recorded on hard disks or the like for editing have been developed.
In such editing systems, the video data is transferred to a hard disk from an inexpensive VTR tape or the like and the editing work carried out while nonlinearly (randomly) accessing the hard disk.
In such an editing system, when the user desires to edit the video data being edited on another editing system or when desiring to realize a back-up function, it is necessary to specially add a streamer of other dedicated machine, it is suffered by a rise of price.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a data transfer and recording apparatus capable of transferring data recorded on for example a hard disk to a magnetic tape of a VTR apparatus and recording the same there at a low cost and a method of the same.
To attain the above object, according to a first aspect of the present invention, there is provided a data transfer and recording apparatus for transferring four channels of digital audio data from a disk-shaped recording medium to a magnetic tape provided with a two-channel audio sector and recording them on the same, comprising a recording controlling means for dividing the four channels of audio data of a certain stock reproduced from the disk-shaped recording medium into two sets each comprising two channels, recording one set of audio data in a first region of the audio sector, and recording the other set of audio data in a second region continuing from the first region.
In the data transfer and recording apparatus of the present invention, the four channels of audio data recorded on a hard disk or other disk-shaped recording medium are divided into two sets each comprising two channels and then recorded on the audio sector of the magnetic tape since a magnetic tape is provided with only a two-channel audio sector and cannot record four channels of audio data if the form is left as it is.
The video data, on the other hand, may be repeatedly recorded on regions of the video sector corresponding to the first region and second region of the audio sector so as to facilitate establishment of correspondence with the audio data and make management easier.
Alternatively, it is possible to record video data on a region of the video sector corresponding to the first region of the audio sector and to record video data of a next stock on a region of the video sector corresponding to the second region of the audio sector so as to improve the efficiency of recording of the magnetic tape.
According to a second aspect of the present invention, there is provided a data transferring and recording method for transferring four channels of digital audio data from a disk-shaped recording medium to a magnetic tape provided with a two-channel audio sector and recording the same, comprising the steps of dividing four channels of audio data of stock reproduced from the disk-shaped recording medium into two sets each comprising two channels; and recording one set of audio data in a first region of the audio sector and recording the other set of audio data in a second region continuing from the first region.
REFERENCES:
patent: 5208678 (1993-05-01), Nakagawa
patent: 5638224 (1997-06-01), Nakatani
patent: 5642459 (1997-06-01), Arano et al.
patent: 6097676 (2000-08-01), Fujinami
Akahane Shigeru
Takano Akira
Frommer William S.
Frommer Lawrence & Haug LLP.
Sony Corporation
Tran Thai
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