JP2000285654A - Data recorder and data recording method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make such an editing as making a time when raw material are made to flow, longer than a time when all of raw materials being within a specified range are reproduced and such an editing as reproducing raw materials which are recorded with the intention of being reproduced without an effect processing by performing the effect processing to be performed without trying the recording work of original raw materials again in a nonlinear edit system. SOLUTION: This device 1 is constituted so as to have nonlinearly accessible recording media 16, 17 and, in this case, it is provided with a specifying means 18 for specifying the range of data which are to be made to be recorded on the recording media 16, 17 among data recorded on an external device 41 and a control means 13b which makes data of an range in which an excess range is added to the range specified by the specifying means 18 to be reproduced from the device 41 and which makes the reproduced data to be recorded on the recording media 16, 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording apparatus using a non-linearly accessible recording medium such as a non-linear editing system, and more particularly to a data recording apparatus having a feature in determining a range of data to be recorded. The present invention also relates to a data recording method in such a data recording device.

[0002]

2. Description of the Related Art In recent years, in the field of broadcasting, non-linear editing systems have become widespread as systems for editing broadcast materials. Non-linear editing system uses AV
Data (video data and audio data) is recorded on a non-linearly accessible recording medium such as a hard disk, for example, and a necessary portion of the material recorded on the recording medium is reproduced. In the process, materials of a plurality of systems are connected, and effect processing such as fade-in, fade-out, wipe, dissolve, and the like is performed). According to the non-linear editing, unlike the conventional tape editing in which a necessary part of the material is dubbed and edited on a video tape in a time series, the working time and the labor can be reduced.

[0003] By the way, even if material editing is performed using such a non-linear editing system, recording of the original material at a news gathering site or the like is generally performed using a VTR. Therefore, as a prerequisite for editing, it is necessary to record the material recorded on the VTR on a recording medium in the non-linear editing system.

[0004] This recording operation generally takes a long time to record all the materials recorded in the VTR, since it takes a time corresponding to the amount of the materials.
However, for example, when editing news material, it is required to immediately edit and broadcast the material recorded in the VTR, so that it is not possible to take a long time for this recording work. Therefore, in order to reduce the recording time, the conventional nonlinear editing system allows an operator to specify a range that is determined to be a part necessary for editing among the materials recorded in the VTR, It is also devised that only the material in the specified range is recorded on the recording medium.

FIG. 4 shows materials recorded on a recording medium in a nonlinear editing system by specifying such a range,
FIG. 3 schematically shows the state in which the material is reproduced. While reproducing the VTR recording the original material and displaying the material on a monitor, the operator determines and designates the ranges E1, E2, and E3 as portions necessary for editing (each range). The beginning and end of the IN point and O respectively
UT point), and the ranges E1, E2 and E
Only the material No. 3 is recorded on the recording medium 51 in the non-linear editing system.

At the time of reproducing the materials in the non-linear editing system, for example, when the operator specifies the materials in the ranges E1, E2 and E3 recorded in the recording medium 51 in order, as shown in FIG. Is to be reproduced continuously. Alternatively, by designating only some of the materials in the ranges E1, E2, and E3, it is of course possible to perform editing so as to shorten the time for flowing the materials in the program.

[0007]

By the way, in the case of a news program, for example, when the recorded material is related to serious news, the broadcast is performed immediately before the start of the broadcast (after the work of recording the material from the VTR is completed). Extension of time may be determined. In such a case, it is usually necessary to edit the program so that the time during which the material flows in the program is longer than originally assumed.

However, in the conventional non-linear editing system, no material other than the range specified by the operator is recorded at the time of the recording operation, so that the time for flowing the material is limited to the specified range as shown in FIG. It cannot be longer than the time when all the materials are played. Therefore, to perform editing that requires a longer time, V
The work of recording the material from the TR must be redone with a wider designated range. As a result, the recording operation becomes troublesome twice, and the recording operation and the editing operation may not be completed before the start of the broadcast.

Also, for example, before recording the material in the range E1, the material was intended to be reproduced without effect processing as shown in FIG. 5A, but after the recording was completed, as shown in FIG. 5B The editing policy may be changed so that the material is faded in and played back. In such a case, the image of the material immediately before the range E1 is reproduced as the image at the time T1 at which the fade-in starts in FIG.
Normally, the user wants to make the image at the same as the image at the reproduction start time T1 in FIG. 5A.

However, in the conventional nonlinear editing system, the material immediately before the range E1 is not recorded.
The image at time T1 in FIG. 5B must be the same as the image at time T1 in FIG. 5A. For this reason, the image at the time T2 at which the fade-in is completed in FIG. 5B is different from the image at the time T1 in FIG. 5A. Therefore, in order to make the image at the time when the fade-in is completed the same as the image at the time of the reproduction start when the reproduction is performed without effect processing, the recording operation of the material from the VTR is also designated. Since the range must be widened so as to include the material immediately before the range E1 and the process must be performed again, the recording operation becomes troublesome twice.

Before recording the materials in the ranges E1 and E2, for example, as shown in FIG. 6A, the user intends to reproduce the materials by connecting them by cut connection without effect processing. After that, as shown in FIG. 6B, the editing policy may be changed so that those materials are connected by a dissolve and reproduced. In this case as well, the range E at the time T3 when the dissolve of FIG.
By reproducing the image of the material immediately after the range E1 as the image of the time T1, the time T2 at which the dissolve in FIG.
6A is the same as the image of the range E1 at the time point T1 of the seam in FIG. 6A, and the image at the time point T2 at which the dissolve starts in FIG. By reproducing the image, the image in the range E2 at the time T3 at which the dissolving of FIG.
Usually, it is desired to make the image the same as the image in the range E2 at the time T1.

However, in the conventional nonlinear editing system, since the material immediately after the range E1 and the material immediately before the range E2 are not recorded, the range E1 at the time T3 in FIG. 6B is not recorded.
6A is the same as the image in the range E1 at the time T1 in FIG. 6A, and the image in the range E2 at the time T2 in FIG. 6B is the same as the image in the range E2 at the time T1 in FIG. 6A. I can't get it. Therefore, in order to make the image at the time of starting and completing the dissolve the same as the image at the time of the joint at the time of playing back the cut joint without effect processing, it is necessary to record the material from the VTR as well. Since the work must be re-started with the specified range widened to include the material immediately after the range E1 and the material immediately before the range E2, the recording operation is troublesome twice. This is exactly the same even when the editing policy is changed so that the materials in the ranges E1 and E2 are connected by wipe instead of dissolve and reproduced.

In view of the above, the present invention provides a non-linear editing system in which editing is performed such that the time for flowing the material is longer than the time when all the materials in the specified range are reproduced, and the reproduction is performed without effect processing. Editing that plays back the material recorded with the effect
An object of the present invention is to make it possible to perform a material recording operation without re-doing it.

[0014]

In order to solve this problem, the applicant of the present invention provides a data recording apparatus using a non-linearly accessible recording medium such as a non-linear editing system. As described above, of the data recorded on the external device, a designation unit for designating a range of data to be recorded on the recording medium, and a data of a range obtained by adding a surplus range to the range designated by the designation unit And a control means for reproducing the data from the external device and recording the data on the recording medium.

In this data recording device, when the operator designates the range of data to be recorded on the recording medium among the data recorded on the external device using the designation means, the control of the control means is controlled. Originally, data in a range obtained by adding the surplus range to the specified range is reproduced from an external device and recorded on a recording medium.

As described above, according to this data recording apparatus, data in a wider range than the range designated by the operator is recorded on the recording medium. Thus, in order to reproduce data in a range wider than the specified range from the recording medium, it is only necessary to reproduce data in the specified range and data in at least a part of the surplus range, This eliminates the need to re-record data from an external device.

Therefore, if this data recording apparatus is applied to, for example, a non-linear editing system, it is possible to perform editing or effect processing in which the time for flowing the material is longer than the time when all the materials in the specified range are reproduced. Editing such that the material recorded with the intention of reproduction is processed by effect processing can be performed without re-recording the material.

In the data recording apparatus according to the first aspect, as an example, as described in the second aspect, a monitor output means for outputting data recorded on a recording medium for monitor display, and an external device. It is preferable to further comprise a control unit for outputting only data in a range designated by the designation unit out of data reproduced from the device from the monitor output unit.

Thus, only the data in the range specified by the operator is displayed on the monitor as the data to be recorded on the recording medium, so that the operator is made aware of the existence of the data in the surplus range. Without this, it is possible to confirm from the monitor display that data in the specified range is recorded without error.

Further, the data recording apparatus to which the present invention is applied specifically includes a data recording apparatus using a hard disk as a recording medium and a time slot to which a plurality of ports are respectively assigned. It is preferable that data input is performed by operating at. Alternatively, as described above, it is very suitable to apply the present invention to a nonlinear editing system.

Next, the applicant of the present invention provides a method of recording data in a data recording apparatus using a non-linearly accessible recording medium such as a non-linear editing system. Out of the data recorded in the external device, a first step of designating a range of data to be recorded on the recording medium, and a range of data obtained by adding a surplus range to the range designated in the first step. And a second step of reproducing and recording on the recording medium.

According to this data recording method, based on the designation of the range of data to be recorded on the recording medium of the data recording device among the data recorded on the external device, the designated range is specified. The data in the range obtained by adding the surplus range to the data is reproduced from an external device and recorded on a recording medium.

Thus, as in the data recording apparatus according to the first aspect, in order to reproduce data in a wider range than the designated range from the recording medium, the data in the designated range and the surplus range are reproduced. It is only necessary to reproduce the data in at least a part of the range, and it is not necessary to repeat the recording operation of the data from the external device.

Therefore, if this data recording method is applied to, for example, a non-linear editing system, it is possible to perform editing or effect processing such that the time for flowing the material is longer than the time for reproducing all the material in the specified range. This makes it possible to perform editing such that a material recorded with the intention of reproducing the material is processed by effect processing without re-performing the recording operation of the material.

In the data recording method according to the fifth aspect, for example, as described in the sixth aspect, of the data reproduced from the external device, the data in the range specified in the first step Preferably, the method further includes a third step of outputting only the data as data to be recorded on the recording medium for display on a monitor.

Thus, as in the data recording apparatus according to the second aspect, only data in a range designated by the operator is displayed on the monitor as data recorded on the recording medium. This allows the operator to confirm from the display on the monitor that the data in the specified range is recorded without error without making the operator aware of the existence of the data in the surplus range.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example in which the present invention is applied to a non-linear editing system in which material input / output, recording / reproduction, and editing and operations for the same can be performed by one dedicated device will be described. I do.

FIG. 1 is a block diagram showing an example of the configuration of such a nonlinear editing device. The non-linear editing device 1 includes a data input unit 2, data output units 3, 4, and 5, data management units 6, 7, 8, and 9, a timing management unit 10, an information management unit 11, a recording / reproducing unit. Part 12;
The control unit 13 and the special effect unit 14 are provided on separate substrates, respectively. Data management units 6 to 9, timing management unit 10, information management unit 11, recording / reproduction unit 12
And the control unit 13 are connected to each other via an internal bus (data bus and control bus) 15.

The non-linear editing apparatus 1 includes a plurality of hard disk array apparatuses 1 for recording video data.
6 and a plurality of hard disk array devices 17 for recording audio data. In addition, a control panel 18 and a meter panel 19 are provided in a housing of the nonlinear editing apparatus 1.

In the non-linear editing apparatus 1, an input port 20 is formed by the data input unit 2 and the data management unit 6. The data output units 3, 4, 5 and the data management units 7, 8, 9 respectively provide output ports 21, 22, 2
3 are formed. The recording / reproducing unit 12 and the hard disk array devices 16 and 17 form a disk array system 31.

Input port 20, output ports 21, 22,
The time slot signal is given to the data management units 6, 7, 8, and 9 from the time slot generator 10A provided in the timing management unit 10. This time slot signal indicates a time slot (a time interval of a predetermined frame) for permitting use of the internal bus 15 by the input port 2.
0, a signal that is repeatedly and sequentially assigned to the output ports 21, 22, 23 one by one.

The input port 20, the output ports 21, 22 and 23 each use the internal bus 15 in the assigned time slot, so that the internal bus 15 can be divided and used, and the time slot is very short. Therefore, the input port 20, the output ports 21, 22 and 23
Thus, it is possible to make it appear that the simultaneous input / output of the AV data of a plurality of systems is realized. Time slot generator 1
0A creates this time slot signal based on the reference video signal Vref supplied from outside the nonlinear editing apparatus 1.

The data input section 2 of the input port 20
An input 1 output switch 2A and an encoder 2B for compressing data by a predetermined encoding method (for example, MPEG)
Are provided. AV data externally supplied to the non-linear editing apparatus 1 through the input terminal D1 is input to one input terminal a of the changeover switch 2A of the data input unit 2 and sent to the editing unit 13A of the control unit 13 described later. . AV data sent from the editing unit 13A is input to the other input terminal b of the changeover switch 2A.

The switch 2A outputs the AV data input through the input terminal D1 when there is no input of AV data from the editing unit 13A, and outputs the AV data when there is input of AV data from the editing unit 13A. Is switched to output. The AV data output from the changeover switch 2A is transmitted to the encoder 2B
And sent to the data management unit 6 of the input port 20.

The data management unit 6 includes a buffer memory 6A
And a microprocessor 6B for controlling the buffer memory 6A. When operating the input port 20 to record AV data, the microprocessor 6B
Causes the buffer memory 6A to temporarily store the AV data compressed by the encoder 2B. This input port 2
0 instructs the operation of the internal bus 1 based on the operation of an operation switch on the control panel 18 described later.
5 to the microprocessor 6B. Also, a command CR instructing this operation can be given to the microprocessor 6B from a higher-level device (for example, a personal computer) of the non-linear editing device 1.

When recording the AV data by operating the input port 20, the microprocessor 6 B sends the file management unit 11 A provided in the information management unit 11 to the hard disk array device 1 of the disk array system 31.
Information conveying the addresses of the current free areas 6 and 17 is provided through the internal bus 15. The file management unit 11A stores the file name of the AV data currently recorded on the hard disk array devices 16 and 17 and the file name of the file name in the hard disk array devices 16 and 17.
It manages the addresses of the areas where the V data is recorded in correspondence with the addresses of the areas, and also manages the addresses of the current free areas of the hard disk array devices 16 and 17, and creates management information (file system information) for them. And a storage circuit (eg, RAM) for storing the file system information created by the control circuit.

The file system information created by the file management section 11A is roughly classified into three items: a file entry, a record entry, and a free space list.
Of these, the file entry is 1 for each file.
The file name and pointer information (that is, link information to the first record entry) to the address of the head position of the first record entry for the file are written.

A record entry is created for each continuous area where one file is recorded on the hard disks in the hard disk array devices 16 and 17. One file is frequently recorded in a plurality of continuous areas separated from each other on the hard disk in many cases due to the length and location of the free area on the hard disk. Therefore, usually, a plurality of record entries are also created. The record entry for the first continuous record includes start position data indicating the address of the start position of the continuous area (that is, the address of the first recording position of the file on the hard disk) and the length of the file from the start position. Data indicating whether the data is continuously recorded and pointer information (that is, link information to the next record entry) to the address of the head position of the next record entry are written.

In the record entries for the second and subsequent consecutive recordings as well, start position data indicating the address of the start position of the continuous area and how long the file has been continuously recorded from the start position are described. Data to show,
The pointer information to the address of the head position of the next record entry is written. Then, instead of the pointer information, data indicating that the recording of the file has been completed in the continuous area is written in the last record entry.

The free space list is used to indicate free areas on the hard disks in the hard disk array devices 16 and 17 where data has not been recorded, and is created for each free area. Each free space list includes
Start position data indicating the address of the start position of the free area, data indicating how long data from the start position can be written continuously, and data indicating the start position of the next free space list The pointer information to the address (that is, link information to the next free space list) is written.

The microprocessor 6B stores the AV data temporarily stored in the buffer memory 6A in the time slot assigned to the input port 20 by the time slot signal given from the time slot generator 10A. The data is read from the buffer memory 6A.
Then, a command instructing writing to the free area transmitted from the file management unit 11A is added to the AV data, and the AV data is transmitted to the recording / reproducing unit 12 of the disk array system 31 through the internal bus 15.

The recording / reproducing unit 12 includes a disk array controller 12A for controlling a hard disk array device 16 for recording video data, a disk array controller 12B for controlling a hard disk array device 17 for recording audio data, and a disk array controller 12A. ,
A buffer memory 12C for temporarily storing AV data between the internal bus 12B and the internal bus 15 is provided.

The disk array system 31 has a RAID
(Redundant Arrays of Inexpensive Disks) technology. For example, RAID level 3 is adopted for video data, and the disk array controller 12A distributes and records the video data to all but one of the plurality of hard disk array devices 16 and distributes them. If the parity data generated from the video data is recorded on one of the hard disk array devices 16 on which the video data was recorded and a failure occurs and the video data cannot be reproduced, On the basis of the video data.

For audio data, for example, RAI
When the D level 1 is adopted, the disk array controller 12B causes the two hard disk array devices 17 to record the audio data respectively, and when one of the units fails, the audio data cannot be reproduced. The audio data can be reproduced from the remaining one.

The AV data sent from the data management unit 6 of the input port 20 to the recording / reproducing unit 12 is stored in the buffer memory 1
2C, the disk array controllers 12A, 12A
B, the hard disk array devices 16 and 17
It is recorded in a free area indicated by a write instruction command added to this AV data.

As with the data management unit 6 of the input port 20, the data management unit 7 of the output port 21 includes a buffer memory 7A and a microprocessor 7B for controlling the buffer memory 7A.

When the output port 21 is operated to reproduce the AV data, information that conveys the address of the recording area of the AV data to be reproduced in the hard disk array devices 16 and 17 is transmitted from the file management unit 11A to the internal bus. 15 to the microprocessor 7B. The AV data to be reproduced is determined by specifying a file name of the AV data by operating an operation switch of the control panel 18 described later. A command instructing the operation of the output port 21 is transmitted to a control panel 1 described later.
The operation switch 8 is supplied to the microprocessor 7B through the internal bus 15 based on the operation of the operation switch. Also, a command CP for instructing this operation can be given to the microprocessor 7B from the host device of the nonlinear editing device 1.

The microprocessor 7B reads the AV data from the recording area transmitted from the file management section 11A in the time slot assigned to the output port 21 by the time slot signal given from the time slot generator 10A. The instructing command is sent to the disk array system 31 through the internal bus 15.

In the disk array system 31, AV data is reproduced by the disk array controllers 12A and 12B from the area indicated by the read instruction command in the hard disk array devices 16 and 17. The AV data is sent to the data management unit 7 via the internal bus 15 via the buffer memory 12C. The microprocessor 7B stores the AV data in the buffer memory 7A.
After that, the data is sequentially read from the buffer memory 7A and sent to the data output unit 3.

The data output unit 3 is provided with a two-input one-output changeover switch 3A and a decoder 3B of the same encoding system as the encoder 2B of the data input unit 2 of the input port 20. The AV data sent from the data management unit 7 to the data output unit 3 is expanded by the decoder 3B, input to one input terminal of the changeover switch 3A, and sent to an editing unit 13A of the control unit 13 described later. . AV data sent from the editing unit 13A is input to the other input terminal of the changeover switch 3A.

The changeover switch 3A is, like the changeover switch 2A of the data input unit 2 of the input port 20, the editing unit 13A.
When no AV data is input from A, the decoder 3
The AV data input from B is output, and when AV data is input from the editing unit 13A, switching is performed so as to output the AV data. The AV data output from the changeover switch 3A is output to an output terminal D
2 is output to the outside of the nonlinear editing apparatus 1.

The data management units 8 of the output ports 22 and 23
9 and the data output units 4 and 5 also have the same configuration as the data management unit 7 and the data output unit 3 of the output port 21, respectively. When operating the output ports 22 and 23 to reproduce AV data, AV data is output to the outside of the non-linear editing apparatus 1 through the output terminals D3 and D4 in the same manner as in the output port 21.

The control section 13 is provided with an editing section 13A. As described above, the editing unit 13A has the input terminal D
AV data supplied from the outside through an output port 21 and output ports 21 and
AV data expanded by the decoders 3B, 4B and 5B of the data input units 2 and 23 and the data output units 3 and 4 and 5 are transmitted. The editing unit 13A transmits the AV
It includes a matrix switcher (not shown) for sending data to any one of the data input sections 2, the data output sections 3, 4, and 5. Also, from the editing unit 13A,
The AV data sent to one of the data input units 2, the data output units 3, 4, and 5 is transmitted to the monitor data DM.
And output it to the outside of the non-linear editing apparatus 1.

The AV data sent from the editing unit 13A to the data input unit 2 is input to the changeover switch 2A and then passed through the data input unit 2 and the data management unit 6 to the hard disk array devices 16 and 17 as described above. Is stored. On the other hand, as described above, the AV data sent from the editing unit 13A to the data output units 3, 4, and 5 is transmitted to the changeover switches 3A and 4A.
After being input to A and 5A, they are output to the outside of the nonlinear editing apparatus 1 through output terminals D2, D3 and D4, respectively.

The editing unit 13A includes an audio mixer (not shown) for performing after-recording or the like on the transmitted AV data. Editor 1
3A is A of up to two systems out of four systems of AV data sent from the data input unit 2 and the data output units 3, 4, and 5.
The V data can be simultaneously sent to the special effect unit 14 through two data output paths. The special effect unit 14 performs an effect process (for example, fade-in, fade-out, dissolve, wipe, etc.) on AV data. The special effect unit 14 performs such effect processing on one or two systems of AV data sent from the editing unit 13A, and outputs the obtained one system of AV data through one data output path. Return to 13A.

Therefore, from the editing unit 13A, the AV data supplied through the input terminal D1 and the decoder 3B,
The AV data obtained by performing after-recording and effect processing on the AV data expanded in 4B and 5B is input to the data input unit 2, the data output unit 3,
It can be returned to any one of 4, 5 and output as monitoring data DM.

The control unit 13 is provided with a microprocessor 13B and an interface (I / F) 13C in addition to the editing unit 13A. The microprocessor 13B controls the entire control unit 13 and executes processing relating to material recording, which will be described later. The interface 13C is an interface for converting a command to the meter panel 19 via the internal bus 15 into a format corresponding to the meter panel 19. Although not shown, the meter panel 19 has an input port 20, an output port 2
A display unit and the like for displaying the operation states of the components 1, 22, and 23 are provided.

The non-linear editing apparatus 1 can output a command to an external device (for example, a VTR) that supplies AV data to the non-linear editing apparatus 1. It also has a role as an interface for converting a command to a device into a format corresponding to the device. Also, a command CE for instructing the operation of the editing unit 13A can be given from a higher-level device of the non-linear editing device 1, and the interface 13C
It also has a role as an interface for converting into a format according to the control unit 13.

The information management section 11 is provided with a network driver 11B in addition to the file management section 11A. The network driver 11B is for exchanging AV data between the non-linear editing apparatus 1 and an external network (for example, Ethernet).

The timing management unit 10 includes an interface 10 in addition to the time slot generator 10A.
B is also provided. The interface 10B is an interface that converts a command generated by operating the control panel 18 into a format according to the standard of the internal bus 15.

Although not shown, the control panel 18 is provided with various operation switches and a display unit necessary for performing input / output, recording / reproduction, and editing of a material.
Among them, the following switches are included as operation switches necessary for recording AV data supplied from an external device (for example, a VTR) to the non-linear editing apparatus 1 on the hard disk array apparatuses 16 and 17. I have. (A) A switch for instructing operation of an external device (for example, reproduction, fast-forward, rewind, pause, etc. of a VTR). (B) IN and OUT switches for designating the IN and OUT points at the beginning and end of the range to be recorded on the hard disk array devices 16 and 17 among the AV data supplied from the external device, and the designated IN Point, OUT
Entry switch for fixing points. (C) A preview switch for previewing and confirming the recording range specified by the IN and OUT switches. (D) Trim switch for changing the IN point and the OUT point specified by the IN and OUT switches for each frame when it is desired to finely adjust the recording range as a result of the preview. (E) An auto-edit switch for recording the AV data in the recording range designated by the IN / OUT switch (or the IN / OUT switch and the trim switch) on the hard disk array devices 16 and 17.

The control panel 18 is also provided with operation switches for designating the file name of the AV data to be reproduced. The control panel 18 also includes switches for operating the editing unit 13A and the special effect unit 14 during recording and reproduction.

Next, the AV data as the material recorded in the VTR 41 of FIG.
An example of the work to be recorded on the recording media 6 and 17 and an example of the operation of the non-linear editing apparatus 1 related thereto will be described. First, the operator operates such that AV data reproduced from the VTR 41 is supplied to the non-linear editing apparatus 1 through the input terminal D1, and a command output from the non-linear editing apparatus 1 via the interface 13C is given to the VTR 41. The VTR 41 and the nonlinear editing device 1 are connected.

The operator operates the data output units 3, 4, 5
AV data output from an output terminal D2 from a data output unit 3 (the data output unit 3 is an example, and may be the data output unit 4 or 5). The monitor 42 and the non-linear editing apparatus 1 are connected so as to be displayed. Further, the operator inputs the monitor data DM output from the editing unit 13A.
Is connected to the non-linear editing apparatus 1 so that is displayed on the monitor 43.

Subsequently, the operator operates the control panel 18.
By operating the operation switches, the playback of the VTR 41 is instructed, and as the operation of the editing unit 13A, the AV sent from the outside to the editing unit 13A through the input terminal D1
An operation to return data to the data output unit 3 is instructed.

As a result, a command for instructing playback is sent to the VTR 41 via the interface 13C, so that playback of AV data in the VTR 41 is started, and the AV data is supplied to the non-linear editing apparatus 1 through the input terminal D1. . Then, the AV data is sent to the editing unit 13A, and is sent from the editing unit 13A to the data output unit 3 via the matrix switcher.
After being input to A, it is output to the outside of the non-linear editing apparatus 1 through the output terminal D2 and displayed on the monitor 42. Further, the non-linear editing device 1 is connected through the input terminal D1.
Is compressed by the encoder 2B via the changeover switch 2A in the data input unit 2, and then sent to the data management unit 6.

Subsequently, the operator operates the operation switch of the control panel 18 while watching the display on the monitor 42 to quickly forward or rewind the VTR 41 as needed, and to select a portion of the material that is necessary for editing. look for. If it is determined that a certain range is necessary for editing, the operation switch of the control panel 18 is operated to temporarily stop the VTR 41 at the beginning of the range and operate the IN switch of the control panel 18. Specifies the beginning of the range as the IN point. Similarly, by temporarily stopping the VTR 41 at the end of the range and operating the OUT switch on the control panel 18, the end of the range is designated as the OUT point. By operating an entry switch on the control panel 18, the designated IN point and OUT point are determined.

Subsequently, the operator operates the control panel 18.
By operating the preview switch of IN, O, O
The recording range specified by the UT switch is displayed on the monitor 42 for confirmation. As a result, when it is desired to finely adjust the recording range, the trim switch on the control panel 18 is operated. By operating the preview switch of the control panel 18 again, the finely adjusted recording range is displayed on the monitor 42 and confirmed.

In the non-linear editing apparatus 1, when the IN point and the OUT point are designated in this way, the microprocessor 13B of the control unit 13 executes a process as shown in FIG. In this processing, in the first step S1, a valid I
Whether the N point and the OUT point are designated (for example, the time code value indicating the position on the video tape corresponding to the OUT point is smaller than the time code value indicating the position on the video tape corresponding to the IN point) In case, IN point and OU
Since the point T is specified upside down, it is determined whether there is any such case.

If the valid IN point and OUT point are not specified, step S1 is repeated. On the other hand, a valid IN
When the point and the OUT point are designated, the process proceeds to step S2, and the time code value indicating the position on the video tape corresponding to the IN point and the OUT point is stored in the memory (RAM) in the microprocessor 13B. Subsequent step S
At 3, it is determined whether the auto-edit switch has been operated. If not, the process of step S3 is repeated.

The operator operates the auto edit switch of the control panel 18 after designating the valid IN point and OUT point. Thereby, the process of FIG. 2 proceeds from step S3 to step S4. In step S4, the time code value stored in correspondence with the IN point in step S2 is a fixed value (for example, preferably less than 10 seconds, but is an appropriate value within the range of 0 to 255 seconds). The position on the video tape indicated by the time code value which is smaller by the time code value is determined as the recording start point. In the following step S5, the time code value stored in correspondence with the OUT point in step S2 is a fixed value (again, preferably less than 10 seconds, but an appropriate value within the range of 0 to 255 seconds). The position on the video tape indicated by the time code value that is larger by the same value is determined as the recording end point.

In the subsequent step S6, the VTR 41 is rewound (pre-rolled) to a position on the video tape indicated by a time code value smaller by a fixed value (for example, 5 seconds) than the recording start point determined in step S4, and reproduced. Let
The phase adjustment (phase matching) is performed. In a succeeding step S7, it is determined whether or not the phase adjustment is successful. If not successful, the process returns to step S6, and steps S6 and S7 are repeated. On the other hand, if the phase adjustment is successful, the process proceeds from step S7 to step S8.

In step S8, the AV data sent from the data input unit 2 is transferred to the buffer memory 6A from the time when the time code value of the current reproduction position matches the time code value of the recording start point determined in step S4. The command to be stored is sent to the microprocessor 6B of the management unit 6 through the internal bus 15 and the command to send the information indicating the address of the current free area of the hard disk array devices 16 and 17 is sent to the microprocessor 6B. Through the file management unit 11A in the information management unit 11.

As a result, the AV data from the recording start point is stored in the buffer memory 6A, and the information for transmitting the address of the free area is sent from the file management unit 11A to the microprocessor 6B via the internal bus 15. The AV data is stored in the buffer memory 6A in the time slot allocated to the input port 20.
From the disk array system 31 via the internal bus 15.
Is transmitted to the recording / reproducing unit 12 and is recorded on the hard disk array devices 16 and 17.

In the following step S9, the AV data sent from the editing unit 13A to the data output unit 3 from the time when the time code value of the current playback position matches the time code value of the IN point stored in step S2. The data is output from the editing unit 13A as the monitor data DM to be displayed on the monitor 43. Before this point, for example, a still image unrelated to AV data is displayed on the monitor 43 as a background image.

In the following step S10, the output of the monitor data DM is terminated when the time code value of the current reproduction position matches the time code value of the OUT point stored in step S3. The original background image is displayed again.

In the following step S11, from the time when the reproduction position coincides with the recording end point determined in step S4,
A command for ending the storage of the AV data sent from the data input unit 2 into the buffer memory 6A is transmitted to the internal bus 15.
To the microprocessor 6B of the management unit 6 through As a result, the recording of the AV data on the hard disk array devices 16 and 17 ends at the recording end point.
When this step S11 ends, the process ends.

FIG. 3 shows the material recorded in the nonlinear editing apparatus 1 as described above and the manner in which the material is reproduced, as compared with the conventional example shown in FIG. In the non-linear editing apparatus 1, the operator can use the VT
Among the original materials recorded in R41, the ranges E1, E2 and E3 of the materials to be recorded in the non-linear editing apparatus 1 are set to IN and OUT switches (or IN and OUT).
Switch and trim switch), and under the control of the microprocessor 13B of the control unit 13,
A surplus range (a range from the recording start point to the IN point and a range from the OUT point to the recording end point) of a predetermined time length before and after this designated range, and white portions on both sides of E1, E2, and E3 in FIG. ) Is added to the VTR41
And is recorded on the recording medium 51 (the hard disks in the hard disk array devices 16 and 17 in FIG. 1).

As described above, according to the non-linear editing apparatus 1, among the raw materials recorded in the VTR 41, the materials that are wider by a certain time length before and after the range designated by the operator than the hard disk array device 16 And 17 are recorded. Accordingly, in order to reproduce the material in a wider range than the designated range from the hard disk array devices 16 and 17, only the material in the designated range and the material in at least a part of the surplus range are reproduced. It is not necessary to repeat the work of recording the material from the VTR 41 again.

Therefore, the editing is performed so that the time for flowing the material is longer than the time when all the materials in the specified range are reproduced, or the material recorded is intended to be reproduced without effect processing, and is reproduced by effect processing. Such editing (see FIGS. 5 and 6) can be performed without re-recording the material.

Further, according to the non-linear editing device 1, the monitor 43 is provided with the hard disk array device 16
And 17, only the materials in the range designated by the operator are displayed. Therefore, the monitor 43 confirms that the material in the designated range is recorded without error without making the operator aware of the existence of the material in the surplus range.
Can be confirmed from the display.

By the way, when the material is reproduced by the non-linear editing apparatus 1, the operator operates the operation switch of the control panel 18 while the material is recorded on the hard disk array devices 16 and 17 as shown in FIG. By operating the file names of the materials in the ranges E1, E2, and E3 in order, the ranges E1, E2, and E3 are designated in the same manner as in the conventional nonlinear editing system shown in FIG.
It is preferable that the materials of E2 and E3 are continuously reproduced. FIG. 3 also shows the hard disk array devices 16 and 1
7 shows how the material recorded in 7 is reproduced in this way.

Then, editing for extending the time for flowing the material or editing for effect processing and reproduction (FIG. 5,
6), the operator specifies the file name of the material whose range is to be expanded among the materials in the ranges E1, E2 and E3 shown in FIG. By operating the switch to specify the range to be expanded in frame units, it is preferable to reproduce the material by adding an extra range by the specified frame.

The present invention is not limited to the non-linear editing system shown in FIG. 1, and it goes without saying that the present invention may be applied to any type of non-linear editing system. For example,
The present invention may be applied to a nonlinear editing system including a plurality of devices including a computer instead of a single dedicated device. Further, for example, the present invention may be applied to a nonlinear editing system having two or more input ports or a nonlinear editing system having one, two, four or more output ports. Further, for example, the present invention may be applied to a non-linear editing system using a non-linearly accessible recording medium (for example, a semiconductor memory or an optical disk) other than a hard disk.
The present invention may be applied to a non-linear editing system for compressing and expanding V data.

The present invention may be applied to a data recording apparatus using a non-linearly accessible recording medium other than the non-linear editing system. Further, the present invention is not limited to the above-described example, and it is needless to say that various other configurations can be adopted without departing from the gist of the present invention.

[0086]

As described above, according to the data recording apparatus of the first aspect of the present invention, data in a wider range than the range designated by the operator is recorded on the recording medium. Thus, in order to reproduce data in a range wider than the specified range from the recording medium, it is only necessary to reproduce data in the specified range and data in at least a part of the surplus range, This eliminates the need to re-record data from an external device.

Therefore, if this data recording apparatus is applied to, for example, a non-linear editing system, it is possible to perform editing or effect processing in which the time for flowing the material is made longer than the time when all the materials in the specified range are reproduced. An effect is obtained that editing can be performed such that the material recorded for the purpose of reproduction is subjected to effect processing and played back without re-recording the material.

In the data recording apparatus according to the first aspect of the present invention, in the case of the second aspect, the data recorded on the recording medium in the range specified by the operator is recorded on the monitor. Is displayed, so that the operator can confirm from the monitor display that the data in the specified range is recorded without error, without being aware of the existence of the data in the surplus range. Is also obtained.

Next, according to the data recording method according to the fifth aspect of the present invention, as in the data recording apparatus according to the first aspect, data in a range wider than the range designated by the operator. Is reproduced from the recording medium only by reproducing the data in the designated range and the data in at least a part of the surplus range.

Therefore, if this data recording method is applied to, for example, a non-linear editing system, it is possible to perform editing or effect processing such that the time for flowing the material is longer than the time for reproducing all the material in the specified range. This makes it possible to perform editing such that the material recorded with the intention of reproducing without effect processing is reproduced without re-recording the material.

In the data recording method according to the fifth aspect, when the method according to the sixth aspect is employed, as in the data recording apparatus according to the second aspect, the operator is provided with an extra range. It is also possible to confirm from the display on the monitor that the data in the specified range is recorded without error without being aware of the existence of the data.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of a configuration of a non-linear editing apparatus to which the present invention has been applied.

FIG. 2 is a flowchart illustrating an example of a process executed by the nonlinear editing device of FIG. 1;

FIG. 3 is a diagram illustrating an example of a material recorded in the non-linear editing device of FIG. 1;

FIG. 4 is a diagram showing an example of a material recorded in a conventional nonlinear editing system.

FIG. 5 is a diagram illustrating a state in which a recorded material is reproduced with fading in.

FIG. 6 is a diagram illustrating a state in which a recorded material is dissolved and reproduced.

[Explanation of symbols]

1 non-linear editing device, 2 data input section, 2A
~ 5A changeover switch, 2B encoder, 3 ~ 5
Data output unit, 3B-5B decoder, 6-9 data management unit, 6A-9A, 12C buffer memory,
6B-9B, 13B microprocessor, 10
Timing management unit, 10A time slot generator,
10B, 13C interface, 11 information management unit, 11A file management unit, 11B network driver, 12 recording / playback unit, 12A, 12B
Disk array controller, 13 control unit, 13
A Editing Department, 14 Special Effects Department, 15 Internal Bus,
16, 17 hard disk array device, 18 control panel, 19 meter panel, 20 input port, 21-23 output port, 31 disk array system, 41 VTR, 42, 43 monitor

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoichiro Asato 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (72) Inventor Masakazu Murata 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo No. Sony Corporation F term (reference) 5D110 AA13 BB06 BB20 CB03 CD02 CD26

Claims (6)

[Claims] 1. A data recording apparatus using a non-linearly accessible recording medium, wherein: designation means for designating a range of data to be recorded on the recording medium among data recorded on an external device; A data recording apparatus comprising: a control unit that reproduces data in a range obtained by adding a surplus range to a range specified by a specifying unit from the external device and records the data on the recording medium. 2. The data recording apparatus according to claim 1, wherein a monitor output means for outputting data recorded on the recording medium for display on a monitor, and the data reproduced from the external device. A data recording apparatus, further comprising control means for outputting only data in a range designated by the designation means from the monitor output means. 3. The data recording device according to claim 1, wherein the recording medium is a hard disk. 4. The data recording device according to claim 1, wherein the data recording device has a plurality of ports that operate in assigned time slots and input data. Data recording device. 5. A method for recording data in a data recording device using a non-linearly accessible recording medium, wherein a first data range of data recorded on an external device is specified. And a second step of reproducing data from a range obtained by adding a surplus range to the range specified in the first step from the external device and recording the data on the recording medium. A method of recording data in a device. 6. The method for recording data in a data recording device according to claim 5, wherein the first data among the data reproduced from the external device.
A step of outputting only data in the range specified in the step as data recorded on the recording medium for display on a monitor.