Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1996-11-12
2001-10-02
Tran, Thai (Department: 2715)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000, C360S027000
Reexamination Certificate
active
06298194
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to video signal reproducing apparatuses and, more particularly, to a video signal reproducing apparatus suited to be connected with a printer for printing the video signal of a specified picture.
2. Description of the Related Art
In a case where a picture corresponding to the video signal reproduced by the video tape recorder (VTR) is printed by a printer, it has been typical that a desired picture is selected out of the pictures of the reproduced signals from the VTR and is stored in a memory in the printer, and the video data is read from the memory at a predetermined speed, so that the picture is printed out.
FIG. 1
schematically shows a conventional system of this kind comprising a VTR
81
, a monitor
82
and a video printer
83
. A desired picture out of a great number of pictures recorded on the tape is printed in the way described below.
To begin with, the VTR
81
is set to the reproduction mode, and the monitor
82
and the printer
83
are supplied with the reproduced video signals from the VTR
81
. As the monitor
82
is then sweeping the pictures, the operator actuates a console of the printer
83
at the timing when the desired picture is displayed. Responsive to this actuation, a control portion
85
operates a memory portion
84
so that either one field or one frame (hereinafter simply referred to as “one picture”) of video signal is stored in the memory portion
84
. The video signal, after having been stored for one picture in the portion
84
, is read out at a predetermined speed corresponding to the printing speed of a printing portion
86
. By this, printing of the desired picture is realized with the printing portion
86
.
Incidentally, in the conventional art, the video signal supplied from the VTR
81
to the printer
83
is generally an analog video signal.
In such a conventional system as has been descried above, even if a plurality of pictures to be printed are on one and the same tape, the operator has to repeat a process of the steps of choosing one picture and then waiting a relatively long time during which the printing goes on and, after that, choosing the next picture, and so on. To print a great number of pictures, therefore, the operator is occupied for a very long time at the console of the system till the end of printing of all.
Another drawback is that if one desires to get the picture that has once been used in printing for the purpose of printing it again, to select the same picture again is impossible. In more detail, since, in the VTR, the video signals are recorded as moving images at 30 frames or 60 fields a second, the tape capable of recording for 120 minutes has about 430 thousand pictures in field per cassette recorded thereon. Hence, it is virtually impossible to pick up the specified picture out of these pictures as searching is repeated again.
SUMMARY OF THE INVENTION
The present invention has a general object to solve the above-described problems.
Another object of the invention is to provide a video signal reproducing apparatus which, when printing a specified picture on a recording medium on which a great number of pictures are recorded, enables its manageability to be improved.
Under such an object, according to the invention, in an embodiment thereof, a video signal reproducing apparatus is proposed, comprising video reproducing means for reproducing, from a recording medium on which a video signal for a multiplicity of pictures is recorded, the video signal, control input means for inputting control information to be used in a printer connectable with the reproducing apparatus, and control recording means for recording the control information at recording positions on the recording medium which are determined in correspondence with respective recorded positions of the multiplicity of pictures on the recording medium.
Yet another object of the invention is to provide a video signal reproducing apparatus which is able to more speedily extract a specified picture on the recording medium on which a great number of pictures are recorded.
Other than the above-described objects of the invention and its features will become apparent from the following detailed description of embodiments of the invention by reference to the drawings.
REFERENCES:
patent: 4481412 (1984-11-01), Fields
patent: 4698664 (1987-10-01), Nichols et al.
patent: 4805039 (1989-02-01), Otake et al.
patent: 4920423 (1990-04-01), Shiota
patent: 5046167 (1991-09-01), Nakano et al.
patent: 58-97049 (1983-06-01), None
patent: 3-101571 (1991-04-01), None
English language abstract of Japanese Laid-Open Patent Application No. 3-101571.
English language abstract of Japanese Laid-Open Patent Application No. 58-97049.
Canon Kabushiki Kaisha
Robin Blecker & Daley
Tran Thai
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