Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1999-01-21
2003-03-18
Chevalier, Robert (Department: 2715)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000
Reexamination Certificate
active
06535686
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a signal processing device and a signal processing method and is suitably applied to such as a news program production broadcasting system.
DESCRIPTION OF THE PRIOR ART
Heretofore, as one of the news program production broadcasting systems, there has been a system comprised of as shown in FIG.
1
.
Thus constructed news program production broadcasting system
1
comprises the first and the second AV (audio video) servers
2
and
3
which record/reproduce AV (audio and/or video) data on an array of hard disk drives (HDD), the plural number of editing devices
4
A-
4
N, a system control unit
5
to control the overall system
1
, and a data memory device
6
in which various kinds of data are stored are connected respectively via the network. And non-compressed or low-compressed audio video data D
1
A-D
1
N transmitted from the field of collecting materials for an article via a transmission circuit or reproduced from the material tape are supplied to the first AV server
2
via multiple channels.
At this point, the first AV server
2
simultaneously inputs audio video data D
1
of one of multiple systems specified out of audio video data D
1
A-D
1
N to be supplied under the control of the system control unit
5
, and stores these on the specified address position of the recording reproducing unit upon setting these into file respectively.
The audio video data D
1
of each file stored in the first AV server
2
can be read out for multiple files simultaneously from the first AV server
2
using each editing device
4
A-
4
N respectively, and images based on said readout audio video data D
1
can be displayed on the monitor of the editing device
4
A-
4
N respectively. Furthermore, the operator can form a list to define the editing execution order how to edit the audio video data D
1
and produce a news video for broadcasting (hereinafter, this list is referred to as EDL, edit decision list) by visually confirming the image monitor displayed on the editing device
4
A-
4
N, and can register this EDL to the editing device
4
A-
4
N and can make this executed.
In practice, when conducting the EDL, the editing device
4
A-
4
N read out the necessary audio video data D
1
by controlling the first AV server
2
and as well,as editing this based on the EDL, transmit audio video data D
2
A-D
2
N obtained by this editing processing to the second AV server
3
.
At this point, the second AV server
3
successively captures edited audio video data D
2
A-D
2
N to be supplied under the control of the system control unit
5
, and setting these into file and stores on the specified address position of the recording reproducing unit.
Then, the audio video data D
2
A-D
2
N stored in the second AV server
3
are reproduced and expanded at the required time based on the management information in the data memory device
6
and transmitted to an external on-air device (not shown in FIG.) and will be put on the air via said on-air device under the control of the system control unit
5
.
Thus, in the news program production broadcasting system
1
, audio video data D
1
A-D
1
N obtained by collecting materials can be edited to fit the desired condition and can be broadcasted at the predetermined time.
However, according to the news program production broadcasting system
1
described above, if the contents of audio video data D
1
A-D
1
N obtained by collecting materials and registered in the first AV server
2
can be confirmed by a good many people and the EDL can be formed by many more personnel, it is considered that the efficiency of news program production work and the quality of news video obtained by editing can be further improved.
However, according to thus constructed news program production broadcasting system
1
, since the number of editing devices
4
A-
4
N that can be connected to the first AV server
2
is determined by the data transmission capacity of the first AV server
2
, and it was difficult to increase the number of editing devices
4
A-
4
N systematically.
Furthermore, in the case where such system is realized, it is considered that editing work can be conducted more efficiently if automatic editing based on the EDL would be conducted in the editing executor. However, according to the editing executor conceivable at present, EDL must be allocated to the editing executor considering the order of editing processing and this requires involvement by the operator and causes a problem in further improving the efficiency of editing work. Moreover, in the case where the EDL includes the editing processing such as audio split editing, voice over editing, or image effect editing (i.e., special effects editing such as mosaic, page turn and wipe), the operator must conduct the complicated work such as controlling the audio video data input to the editing executor, it causes a problem in further improving the efficiency of the editing work.
Furthermore, as the conventional news program production broadcasting system, there is a device constructed as shown in FIG.
2
. As compared this with the conventional news program production broadcasting system shown in
FIG. 1
, reference/reading device
7
A-
7
N are connected to the output side of the second AV server
3
so that audio video data D
2
A-D
2
N stored in the second AV server
3
and the image based on this can be displayed on the monitor. Accordingly, the operator, by reading out the audio video data D
2
A-D
2
N before they are transmitted to the on-air equipment from the second AV server
3
using the reference reading device
7
A-
7
N and displaying the image based on this, can confirm visually the edited result of news video before it is actually put on the air.
Thus, in the news program production broadcasting system
1
, the audio video data D
1
A-D
1
N obtained by collecting materials can be edited to the desired condition and broadcasted at the predetermined time.
However, in the news program production broadcasting system
1
thus constructed, since said system
1
is comparatively large sized, each device is installed in the separate room, e.g., each editing device
4
A-
4
N is installed in the editing room, and each reference/reading device
8
A-
8
N is installed in the sub-adjustment room separately.
Therefore, in the case where the program production staff and people working in the related field in the room different from the sub-adjustment room, such as the program producer and the news draft producer desire to refer and read the edited video, they must go to the sub-adjustment room as necessitated in suspending their works and their working efficiency decreases tremendously. Accordingly, in recent years, in order to achieve higher efficiency the demand for increasing the number of reference and reading devices
8
A-
8
N and by installing them in the plural number of rooms, the edited result of video can be confirmed from each room has been growing.
However, in this news program production broadcasting system
1
, since the number of reference reading devices
7
A-
7
N that can be connected to the second AV server
3
is determined by the transmission capacity of said second AV server
3
, the number of reference reading devices
8
A-
8
N could not be increased easily before.
Furthermore, as a conventional news program production broadcasting system, there is a device constructed as shown in FIG.
3
. This device is different from the device shown in
FIG. 1
on the point that an audio booth
11
is connected to the input means of the first AV server
2
and a telephone
12
and a tape recorder
13
are connected to the editing device
4
N. In order to overlap voice such as narration over audio video data D
1
A-D
1
N audio data D
11
will be obtained using a microphone of the audio booth
11
and this is stored in the AV server
2
as an audio file. This audio file is registered in the data memory device
6
and at the time when editing, it is read out by the editing device
4
A-
4
N and combined with audio video data D
1
A-D
1
N.
Furthermore, speeches to be obtained s
Abe Keiko
Grey Christopher
Yanase Koji
Chevalier Robert
Mahr Hans R.
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