JP2001060384A - Device and method for edition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate editing by inputting edit data presenting reproducing procedures of program data recorded on a recording medium, selectively reproducing the parts set by the edit data, and storing the reproduced program data once and decoding them. SOLUTION: When a medium 1 is loaded on a drive 2, the drive 2 reads TOC information recorded on the innermost circumference, and supplies the result of the reading to a controller 11. In the TOC information such information as video signals to be recorded on the medium 1, addresses of audio signals, reproduction time, etc., are recorded, and the controller 11 can make access to desired information. An input part 9 is operated to instruct the controller 11 to reproduce a desired track, and the controller 11 instructs the drive 2 to reproduce the track specified by the input part 9, and supplies the reproduced data to a multiplexed decoder 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording medium such as a magnetic disk, a magneto-optical disk, etc.
The present invention relates to an editing apparatus and a method suitable for recording information such as an audio signal.

[0002]

2. Description of the Related Art For example, various materials are recorded by a camera-integrated video tape recorder. Usually, these recordings are performed at random. That is, for example, when a videotape recorder with a camera is brought to a children's athletic meet and a state of the athletic meet is photographed, the photographer photographs various images centering on the child. Then, because the user is not used to the operation, the intention to stop the recording operation is not actually stopped, and a meaningless image may be captured.

[0003]

Therefore, the video tape thus photographed can be edited by editing the video tape, but this editing requires a plurality of video decks, and the operation is troublesome. Therefore, this editing work is not generally performed.

[0004] As a result, when reproducing the video tape, an unnecessary image must be viewed, and the interest may be reduced by half.

[0005] The present invention has been made in view of such a situation, and is intended to enable easy editing.

[0006]

According to the present invention, there is provided an editing apparatus comprising: an input section for inputting edit data indicating a procedure for reproducing program data recorded on a recording medium; a recording drive for recording the edit data on the recording medium. A reproduction drive for reproducing program data and edit data, a controller for controlling the reproduction drive to selectively reproduce a portion set by the edit data in the program data, and a memory for temporarily storing the reproduced program data. And a decoder that decodes the stored program data to obtain a continuous output.

According to the editing method of the present invention, editing data indicating a procedure for reproducing program data recorded on a recording medium is input, the editing data is recorded on a recording medium, and the program data and the editing data are reproduced. The playback drive is controlled so as to selectively play back a portion set by the edit data in the data, the played back program data is temporarily stored, and the stored program data is respectively decoded to obtain a continuous output. I do.

[0008] In the editing apparatus and method of the present invention,
When the input edit data is recorded on a recording medium and reproduced from the recording medium, a portion of the program data set by the edit data is selectively reproduced.

[0009]

FIG. 1 shows a recording format of an embodiment of an information recording medium according to the present invention. In this embodiment, a video signal and an audio signal are recorded on a disk 1 composed of a magnetic disk, a magneto-optical disk or the like by time division multiplexing for each block. On the innermost circumference of the disc 1, TOC information is recorded. In this embodiment, four pieces of information of track 1 to track 4 are recorded subsequently. In each track, a video signal (V), a left channel audio signal (A1), a right channel audio signal (A2), and simple editing information are recorded in a time-division multiplexed manner for each block. The simple editing information includes a header, a length (time) of a reproduction signal reproduced as a result of the editing, and editing data. The edit data includes a jump command, a track end command, a pause command, a fade-in / fade-out command, a repeat command, an insert command, a combining command, and the like.

The length information is, for example, edited data shown in FIG.
As shown in the figure, after reproducing the information A and B, jump from the end position of B to the start position of E, reproduce the information E and F, jump from the end position of F to the start position of C, and If the editing is performed to reproduce the information A, B, E, F, C, and D, the total time when the information A, B, E, F, C, and D are reproduced is recorded.

FIG. 3 is a block diagram showing the configuration of an embodiment of the information recording medium editing apparatus of the present invention. The drive 2 drives the disk 1, records necessary data on it, and reproduces data recorded on it. The multiplexing decoder 3 separates reproduced video data and audio data output from the drive 2 and supplies the video data to the video decoder 5 and the audio data to the audio decoder 8, respectively. Further, it reads the simple edit information of each track and supplies it to the controller 11. The video decoder 5 and the audio decoder 8 have buffer memories 4, 6 and 7, respectively, and can temporarily store input data. Input unit 9
Is operated when predetermined editing information is input to the controller 11, and the input simple editing information is stored in the memory 10 built in the controller 11.

Next, the operation will be described with reference to the flowchart of FIG. When the disc 1 is mounted on the drive 2, the drive 2 reads the TOC information of the disc 1,
The reading result is supplied to the controller 11. This TO
The C information includes a video signal recorded on the disc 1,
Information such as addresses of audio signals and the like (for example, positions such as a start point and an end point of each program (track 1 to track 4) in FIG. 1) and a reproduction time are recorded. This allows the controller 11 to access desired information.

First, in step S1, a user looks at a material image and determines an editing method. That is, when the input unit 9 is operated to instruct the controller 11 to reproduce a desired track, the controller 11 instructs the drive 2 to reproduce the track specified by the input unit 9. Drive 2
The instructed track of the disc 1 is reproduced, and the reproduced data is supplied to the multiplexing decoder 3. Multiplexing decoder 3
Separates the input data into video data and audio data. The video data is supplied to and stored in the buffer memory 4 of the video decoder 5, and is stored in the video decoder 5.
Is decoded by The decoded output is output to a CRT or the like (not shown) and displayed. The audio data is stored in buffer memories 6 for the left and right channels, respectively.
And 7 are stored. Audio decoder 8
Decodes the data stored in the buffer memories 6 and 7 and outputs the decoded data to a speaker (not shown) or the like.

[0014] The user works on the concept of editing while watching the video image and the audio output.

Next, when the editing method is determined, step S
Proceed to step 2 to input an edit command using frame advance or the like. For example, as shown in FIG. 2, after reproducing A and B, jump from the end point of B to the start point of E, and
Is reproduced, C and D are reproduced by jumping from the end point of F to the start point of C, and the reproduction is ended so that the reproduction is ended. Record. Also, a jump command to the start point of C is recorded at the end point of F. Further, a track end command is recorded at the end point of D. Such a command can be stored in the memory 10 of the controller 11 by operating the input unit 9.

In step S3, it is determined whether or not the input of the editing information has been completed. If the input has not been completed, the process returns to step S2, and the input of the editing command is repeatedly executed. If it is determined in step S3 that the input of the editing command has been completed, the process proceeds to step S4, and rehearsal reproduction is performed according to the input command. That is, at this time, the controller 11 controls the drive 2 in accordance with the editing command stored in the memory 10 to execute a trial reproduction. The user checks the editing state while watching the reproduction state at this time. In step S5, it is determined whether or not the editing has been completed. If it is determined that the editing has not been completed,
Returning to step S2, the subsequent processes are repeatedly executed. That is, the user determines whether the editing state is satisfactory while watching the rehearsal reproduction, and if not satisfied, repeats the editing operation.

If it is determined in step S5 that the editing has been completed, the flow advances to step S6 to cause the disk 1 to record the editing information. That is, when an editing completion command is input from the input unit 9, the controller 11 supplies the editing command stored in the memory 10 to the drive 2 and causes the drive 2 to record the command at a predetermined position according to the format shown in FIG. Editing is completed as described above.

As shown in FIG. 1, editing information can be assigned to video data and audio data in units of blocks. Therefore, fine editing (jumping in units of blocks) is possible. In a block to which special editing information is not assigned, the editing information indicating the block can be recorded, but the recording of the editing information may be omitted.

FIG. 5 is a block diagram showing the configuration of an embodiment of an information recording medium reproducing apparatus according to the present invention, and portions corresponding to those of the editing apparatus in FIG. 3 are denoted by the same reference numerals.
This playback device has basically the same configuration as the editing device shown in FIG. 3, but does not have a recording function, but has only a playback function.

Next, the operation of the reproducing apparatus will be described with reference to the flowchart shown in FIG. First, in step S11, it is determined whether or not the disk 1 is mounted on the drive 2. Step S when the loading of the disk is detected
Proceeding to 12, it is determined whether or not the reproduction has been commanded. When it is determined that a reproduction command has been input from the input unit 9, the process proceeds to step S13, and the controller 11 commands the drive 2 to start reproduction. Further, the process proceeds to step S14, in which the video decoder 5 and the audio decoder 8 are instructed to start decoding. At this time, the drive 2 reproduces the information recorded on the disk 1 and supplies it to the multiplex decoder 3. The multiplexing decoder 3 separates video data and audio data from the input data, and supplies them to the buffer memory 4 of the video decoder 5 and the buffer memories 6 and 7 of the audio decoder 8, respectively. The video decoder 5 decodes the data stored in the buffer memory 4 and outputs the data to a CRT (not shown) for display. The audio decoder 8 processes the audio data stored in the buffer memories 6 and 7 for the left and right channels, supplies the processed data to left and right speakers (not shown), and emits sound.

Next, the process proceeds to step S15, where a process of reading the editing information is performed. That is, the multiplexing decoder 3 reads the editing information from the reproduction data supplied from the drive 2 and outputs it to the controller 11. Controller 1
Step S16 determines whether the read edit command is, for example, a jump command or a track end command.
Is determined in S18 (of course, other instructions are also actually determined).

If it is determined in step S16 that the edit command is a jump command, step S17
The controller 11 supplies a jump command to the drive 2. That is, in FIG. 2, for example, when a jump command is detected at the end point of B, the drive 2 jumps the playback position from the end point of B to the start point of E.
Then, normal reproduction is restarted from E. Similarly, when a jump command is detected at the end point of F, the playback position jumps from the end point of F to the start point of C.

If it is determined in step S18 that a track end command has been detected, the process proceeds to step S19, where a jump to the next track (program) to be reproduced is instructed. That is, for example, when a track end command is detected at the end point of D in FIG. 2, the controller 11 controls the drive 2 to jump the reproduction position to the next track. Thereafter, the process returns to step S15, and the same processing is repeatedly executed.

Although the reproduction is temporarily interrupted at the time of a jump, since the data is stored in the buffer memories 4, 6, and 7, the capacity of the buffer memory corresponds to the longest random access time. By doing so, it is possible to prevent the playback screen and audio from being interrupted halfway.

Although a disk is used as a recording medium in the above description, a magnetic tape or the like can be used.

[0026]

As described above, according to the editing apparatus and method of the present invention, input editing data is recorded on a recording medium,
When played back from a recording medium, the portion of the program data set by the edit data is selectively played back, so that the editing operation can be repeated if necessary,
It is possible to reliably achieve a desired editing state.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a recording format of an information recording medium according to the present invention.

FIG. 2 is a diagram illustrating an example of editing.

FIG. 3 is a block diagram showing a configuration of an embodiment of an information recording medium editing device of the present invention.

FIG. 4 is a flowchart for explaining the operation of the embodiment in FIG. 3;

FIG. 5 is a block diagram showing a configuration of an embodiment of an information recording medium reproducing apparatus of the present invention.

FIG. 6 is a flowchart for explaining the operation of the embodiment of FIG. 5;

[Explanation of symbols]

1 disk, 2 drives, 3 multiplex decoder, 4 buffer memory, 5 video decoder,
6,7 buffer memory, 8 audio decoder,
9 input unit, 10 memory, 11 controller

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/91 H04N 5/781 510G 5/91 N

Claims (2)

[Claims] 1. An input section for inputting edit data indicating a procedure for reproducing program data recorded on a recording medium, a recording drive for recording the edit data on a recording medium, and reproducing the program data and the edit data. A playback drive that controls the playback drive so as to selectively play back a portion set by the edit data in the program data; a memory that temporarily stores the played program data; An editing apparatus, comprising: a decoder for decoding program data to obtain a continuous output. 2. Editing data indicating a procedure for reproducing program data recorded on a recording medium is input, the editing data is recorded on a recording medium, and the program data and the editing data are reproduced. Controlling the playback drive to selectively play back the portion set by the editing data; temporarily storing the played back program data; and decoding the stored program data to obtain a continuous output. Editing method characterized by: