JP3768669B2 - Editing function built-in playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a playback device with an editing function that has an editing function for editing a signal recorded on a recording medium using another device that can be remotely operated.
[0002]
[Prior art]
2. Description of the Related Art A dubbing editing system is known in which a video signal recorded on a recording medium such as a video tape is dubbed and recorded on another apparatus such as a video tape recorder.
[0003]
For example, when editing a video signal recorded on a recording medium, the above dubbing editing system sets one cut from an arbitrary position to an arbitrary position on the recording medium as a plurality of cuts in advance as an editing program. Dubbing by registering, sequentially searching for and reproducing a plurality of cut video signals recorded on the recording medium in accordance with a pre-registered editing program, and supplying them to other devices Records and edits.
[0004]
Recently, in order to control the operation of the receiving video tape recorder, the sending video tape recorder has a built-in infrared remote control device transmitter, and the receiving command can be selected from the control command codes stored in multiple types. The control command code for controlling the operation corresponding to the manufacturer and model of the video tape recorder is selected, and according to the selected control command code, the transmission unit of the infrared remote control device performs the dubbing recording editing operation described above. Systems have also emerged that are configured to send control commands to the receiving video tape recorder to control the operation of the receiving video tape recorder.
[0005]
[Problems to be solved by the invention]
By the way, in the above-described system, when registering an editing program, position information regarding the position on the recording medium to be edited (for example, when the recording medium is a magnetic tape, recording is performed together with a video signal and an audio signal. Is reproduced from the recording medium together with the video signal and the audio signal, the position information reproduced from the recording medium is registered as an editing start point and an editing end point. .
[0006]
However, in the above-described system, when the user registers the editing program, the user reproduces the video signal and audio signal recorded on the recording medium, and confirms the content of the reproduced video and audio. The editing program is registered using the position information reproduced from the recording medium together with the signal and the audio signal, but the conveyance speed of the recording medium is used to confirm the contents of the video and audio recorded on the recording medium. When playing back a recording medium by high-speed search playback that is faster than the transport speed during normal playback, the position information that is played back together with the video signal or audio signal from the recording medium can only be played back intermittently, or the video signal from the recording medium If the location information that is played back along with the audio signal is missing for some reason, the location information that was not played back from the recording medium is Since it is configured to interpolate according to information, the interpolated position information does not correspond to the position on the recording medium where the video signal or audio signal to be actually reproduced is recorded. If the editing program is registered based on the recorded position information, the registered editing start point or editing end point cannot be matched with the actual position on the recording medium, so that the editing as desired cannot be performed. There was a problem.
[0007]
The present invention solves the above-described conventional problems, and when editing a program is registered, the user can easily edit the information based on the position information corresponding to the actual position on the recording medium without care. It is an object of the present invention to provide a playback device with an editing function that can register each editing point of a program and can accurately perform editing as desired.
[0008]
[Means for Solving the Problems]
The reproducing apparatus with a built-in editing function according to the present invention records the main information and the main information from a recording medium in which a main information recording area for recording main information and a management information recording area for recording management information related to the main information are formed. Retrieving means for searching for and reproducing the management information including position information, and outputting the reproduced main information to another device, an edit start point and an edit end point when the main information is reproduced Registration means for registering at least one editing program configured by designating the main information and the management information recorded on the recording medium according to the editing program registered by the registration means The reproduction operation in the reproduction means is controlled to search and reproduce, and the main information in the reproduction means is controlled according to the management information reproduced from the recording medium. And a control means for controlling the other device so as to execute the editing operation according to the editing program and the management information, the control means including the registration means for the editing program. When performing registration, the registration means is controlled to register the editing program according to the recording position information included in the management information reproduced from the recording medium at a search speed during normal reproduction. It is characterized by.
Further, the playback device of the present invention includes a playback means operable to search main information and management information from a recording medium, to play back, and to output the played back main information to another device, operable at a plurality of search speeds. A registration unit that specifies an editing start point and an end point while reproducing the main information on the recording medium and registers at least one editing program to be registered in accordance with the management information; and a search in the reproduction unit Control means for permitting registration in the registration means when the speed is a predetermined speed, and prohibiting registration in the registration means when the search speed is higher than the predetermined speed.
[0009]
(Function)
With the above-described configuration, when the editing program is registered, the user can be informed whether or not each editing point of the editing program is registered based on position information corresponding to the actual position on the recording medium. it can.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
FIG. 1 is a block diagram showing a schematic configuration of a camera-integrated video tape recorder (VTR) to which the present invention is applied as an embodiment of the present invention.
[0012]
In FIG. 1, reference numeral 1 includes an image pickup optical system, an image pickup device, an autofocus mechanism, a zoom mechanism, a sound collection microphone, and the like, and adjusts an in-focus and light amount for a subject and converts an optical image by the image pickup optical system into a video signal. The imaging unit 2 outputs the signal to the signal processing unit 2 or converts the sound collected by the sound collecting microphone into an audio signal and outputs the audio signal. A signal processing unit 3 that performs signal processing and sends it to the VTR block 5 includes a CRT or a liquid crystal display panel that displays video, and displays the video indicated by the video signal that has been subjected to signal processing in the signal processing unit 2. Display of various information on the main body using characters and symbols, and an on-screen character video signal indicating a guide display during various setting operations, etc. (Viewfinder) section 4 includes a microcomputer that comprehensively controls various functions of the camera-integrated VTR according to the present embodiment. Control of a movable section in the VTR block 5 described later, detection of magnetic tape position information, And a system control unit 5 that controls various operations, and includes a rotating magnetic head, a magnetic tape transport mechanism unit, a drive unit that drives the transport mechanism unit, and a servo mechanism unit that servo-controls the drive unit. In accordance with a control signal from the system control unit 4, the video signal and audio signal that have been subjected to signal processing in the signal processing unit 2 are recorded on a magnetic tape, and the video signal and audio signal recorded on the magnetic tape are reproduced. The VTR block 6 to be edited includes, for example, an edit operation start instruction switch, a tape travel stop instruction switch, and an edit point registration switch. H, an operation unit having various switches for instructing the operation of the apparatus, such as a reproduction mode instruction switch, a 1/5 speed reproduction instruction switch, and a 10 times speed reproduction instruction switch, and 7 receives a control signal from the system control section 4 Infrared remote control signal generator for transmitting as an infrared remote control signal for remotely controlling the recording device on the side.
[0013]
FIG. 2 is a flowchart showing the control operation of the microcomputer at the time of editing point registration of the camera-integrated video tape recorder shown in FIG.
[0014]
FIG. 3 is a view showing an example of a display screen of the EVF unit at the time of editing point registration of the camera-integrated video tape recorder shown in FIG.
[0015]
In the magnetic tape on which program editing is performed by the camera-integrated video tape recorder as one embodiment of the present invention, each of a plurality of tracks formed by tracing on the magnetic tape with a rotating magnetic head. In addition, an area for recording a video signal and an audio signal and an area for recording a time code as tape position information are provided.
[0016]
Therefore, in the present embodiment, the time code reproduced from the magnetic tape is used to start each cut-in edit point of the editing program (start of the portion where the necessary video signal or audio signal is recorded on the magnetic tape). Point) and cut-out edit points (end points of portions where necessary video signals and audio signals are recorded on the magnetic tape) are registered.
[0017]
By the way, the above time code is used when the normal time code is not reproduced from the magnetic tape due to dropout or disturbance noise generated during the reproduction of the magnetic tape, and the time code cannot be obtained continuously. When transported at a transport speed different from that during reproduction, the time code in each track on the magnetic tape cannot be reproduced, and the time code may be obtained only intermittently. In the microcomputer of the unit 4, when a normal time code is not reproduced from the magnetic tape, for example, an interpolation process for interpolating the time code that has not been normally reproduced is performed by the time code immediately before being normally reproduced. It has become. The time code interpolated by the interpolation process is temporarily held in the memory in the microcomputer with a flag indicating “interpolated time code” added thereto.
[0018]
In the following, the operation at the time of editing point registration of the camera-integrated video tape recorder shown in FIG. 1 will be described.
[0019]
First, by operating the operation unit 6 in FIG. 1, when the system control unit 4 is instructed to start the editing point registration operation and the playback mode instruction switch is operated, the system control unit 4 plays back the VTR block 5. Mode, and the reproduction operation of the signal recorded in each track on the magnetic tape is started.
[0020]
As described above, in the state where the playback mode instruction switch of the operation unit 6 is operated and the VTR block 5 is in the playback mode, the 1/5 times speed playback mode instruction switch or 10 times speed playback mode instruction of the operation unit 6 is set. When a switch or the like is operated, the conveyance speed of the magnetic tape in the VTR block 5 is changed to a conveyance speed different from that during normal reproduction, and the operation is performed regardless of the operation of the reproduction mode instruction switch of the operation unit 6. Even when the tape fast-forward switch or tape rewind switch of the unit 6 is operated, the conveyance speed of the magnetic tape in the VTR block 5 is changed to a conveyance speed different from that during the normal reproduction.
[0021]
As described above, the system control unit 4 detects the time code indicating the position information of the tape included in the signal reproduced from the magnetic tape, and the system control unit 4 detects the magnetic code according to the detected time code. Display of tape position information, registration of editing points of editing program, etc.
[0022]
The operation at the time of registering edit points of the camera-integrated video tape recorder shown in FIG. 1 will be described below in accordance with the control operation flowchart shown in FIG.
[0023]
First, in step S01 in FIG. 2, the magnetic tape transport speed is detected, and when it is detected that the transport speed is twice or more that during normal reproduction, the process proceeds to step S09, where the transport speed is If it is detected that it is not more than twice the normal playback time, the time code temporarily held in the memory in the microcomputer of the system control unit 4 for the editing point registration in step S02 is interpolated. If it is an interpolated one, the process proceeds to step S09, and if it is normally reproduced from the magnetic tape, the process proceeds to step S09. The process proceeds to step S03.
[0024]
Then, in step S03 in FIG. 2, it is checked whether or not the cut-in edit point has been registered. If the cut-in edit point has not been registered, the cut-in edit point is registered (step S04) and registered. The time code of the cut-in edit point is displayed on the screen of the EVF unit 3 in FIG. 1 as shown in FIG. 3A (step S05), and if there is a program to be registered next, the process returns to step S01. (Step S06) When it is detected in step S03 that the cut-in edit point has already been registered, the cut-out edit point is registered (step S07), and the program number is updated to the program number to be registered next. If there is no program to be registered next (step S08), the editing point registration operation is terminated and there is a program to be registered next. The case returns to the step S01 (step S06).
[0025]
If it is detected in step S01 that the conveyance speed of the magnetic tape is twice or more that during normal reproduction, or in step S02, the system controller 4 registers the edit point in the microcomputer. If the time code temporarily stored in the memory is an interpolated one, in step S09, the position on the magnetic tape that is currently being registered as an edit point is prohibited from being registered as an edit point (ie, interpolation). 3), the character display relating to the program registration is displayed on the screen of the EVF unit 3 in FIG. 1, as shown in FIGS. When there is no program to be registered next, the edit point registration operation is terminated and the program to be registered next is displayed. Returns to step S01 in the case that (step S06).
[0026]
When the editing operation start instruction switch of the operation unit 6 in FIG. 1 is operated to instruct the system control unit 4 to start editing operation, the editing operation according to the editing program registered as described above is performed. Is executed, the operation mode of the VTR block 5 is changed to a reproduction mode for reproducing the magnetic tape, and the magnetic tape is searched and reproduced at high speed up to the first cut-in editing point registered in the editing program, and the infrared remote controller An infrared remote control signal indicating a control command for putting another video tape recorder as a receiving recording device into a paused state is transmitted from the signal generating device 7, and the other video tape recorder as the receiving recording device is put into a paused state. The time code reproduced from the magnetic tape by high-speed search reproduction is registered in the editing program. When it coincides with the first cut-in edit point, the operation mode of the VTR block 5 is changed from the high-speed search reproduction to the normal reproduction, and the signal recorded on the magnetic tape from the first cut-in registration point registered in the edit program is normally set. In addition, the infrared remote control signal indicating the control command for canceling the pause state is transmitted from the infrared remote control signal generating device 7 to another video tape recorder as the receiving recording device, and the magnetic signal is generated by normal reproduction. When the time code reproduced from the tape coincides with the cut-out edit point registered in the editing program, the operation mode of the VTR block 5 is reproduced from the normal reproduction to the high-speed search reproduction, and the receiver side recording from the infrared remote control signal generator 7 is performed. Control that puts other video tape recorders as a device into a paused state An infrared remote control signal indicating a command is transmitted, and the magnetic tape is searched at high speed up to the next cut-in editing point registered in the editing program, and other than the infrared remote control signal generator 7 as a receiving recording device. An infrared remote control signal indicating a control command for placing the video tape recorder in a pause state is transmitted, and thereafter, the above operation is repeatedly executed until there is no program to be executed. When there is no program to be executed, the editing operation is terminated.
[0027]
As described above, each cut-in edit point and cut-out edit point of the editing program is registered while the user actually confirms the contents of video and audio reproduced from the magnetic tape. If the time code to be recorded is interpolated as described above, it is used for registration and registration on the magnetic tape where the signal corresponding to the video or audio that the user is checking is recorded. Since the correspondence with the position on the magnetic tape indicated by the time code is not taken, if you edit with the editing program registered in this way, you will not be able to edit as desired. In the camera-integrated video tape recorder according to the present embodiment, when the magnetic tape transport speed is twice or more that during normal playback, or as an attempt to register as an editing point. If the time code is interpolated, the registration of the editing point is prohibited and the registration prohibition state is displayed on the screen of the EVF unit 3 in FIG. b) to (d) output a video signal implied with the character display indicating the registration prohibition state, thereby indicating the fact to the user, and the user prohibiting the registration of the time code. By making it easy to recognize the status, the time code that does not correspond to the position on the magnetic tape where the signal corresponding to the video or audio to be edited is recorded is mistakenly edited. Can be prevented from being registered, and operability can be improved.
[0028]
【The invention's effect】
As described above, according to the present invention, the conventional problems can be solved and the correspondence with the actual position on the recording medium can be easily performed without registering the user when registering the editing program. It is possible to provide a playback device with a built-in editing function that can register each editing point of the editing program based on the position information and can accurately perform editing as desired.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of a camera-integrated video tape recorder as an embodiment of the present invention.
FIG. 2 is a control operation flowchart of the microcomputer at the time of editing point registration of the camera-integrated video tape recorder shown in FIG. 1;
3 is a diagram showing an example of a display screen of the EVF unit when registering edit points of the camera-integrated video tape recorder shown in FIG. 1; FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Image pick-up part 2 Signal processing part 3 EVF (electronic viewfinder) part 4 System control part 5 VTR block 6 Operation part 7 Infrared remote control signal generator

Claims (12)

The main information and the management information including the recording position information of the main information are searched from a recording medium in which a main information recording area for recording main information and a management information recording area for recording management information related to the main information are formed. And reproducing means for reproducing and outputting the reproduced main information to another device;
A registration means for registering at least one editing program configured by designating an editing start point and an editing end point when the main information is reproduced;
In accordance with the editing program registered by the registration means, the main information and the management information recorded on the recording medium are searched and reproduced so as to search and reproduce the main information and the management information. Control means for controlling the output of the main information in the reproducing means according to the management information, and further controlling the other device so as to execute the editing operation according to the editing program and the management information, When the registration unit registers the editing program, the control unit uses the recording position information included in the management information reproduced from the recording medium at a search speed during normal reproduction based on the editing position information. A playback apparatus with a built-in editing function, wherein the registration means is controlled to perform registration. In previous SL control means, upon registration of the editing program, detecting whether the recording medium is searched at a faster rate than the search speed during the normal reproduction, search the recording medium during the normal reproduction 2. The reproduction apparatus with a built-in editing function according to claim 1, wherein registration of the editing program is prohibited when searching is performed at a speed higher than the speed. In previous SL control means, upon registration of the editing program, detecting whether the recording medium is searched at a faster rate than the search speed during the normal reproduction, search the recording medium during the normal reproduction 2. The playback device with a built-in editing function according to claim 1, wherein when the search is performed at a speed faster than the speed, the operator is warned that registration of the editing program is prohibited.   In the control means, when registering the editing program, it is detected whether or not the recording position information of the main information to be registered as each editing point of the editing program is interpolated. 2. A playback apparatus with a built-in editing function according to claim 1, wherein registration of the editing program is prohibited if the editing program is one.   In the control means, when registering the editing program, it is detected whether or not the recording position information of the main information to be registered as each editing point of the editing program is interpolated. 2. The reproducing apparatus with a built-in editing function according to claim 1, wherein, if it is, the operator is warned that registration of the editing program is prohibited.   The device further selects a remote control code corresponding to another device that is actually used for editing work from a plurality of types of remote control codes corresponding to each of the plurality of other types of remotely operable devices. A remote control means for transmitting a remote control signal in accordance with the selected remote control code to the other device and remotely operating an editing / recording operation in the other device. The playback device with a built-in editing function according to claim 1.   2. The playback device with a built-in editing function according to claim 1, wherein the remote control means is configured to use infrared light to carry the remote control signal transmitted to the other device. Retrieving means for retrieving main information and management information from a recording medium, operable at a plurality of search speeds, reproducing, and outputting the reproduced main information to another device;
A registration unit that specifies an editing start point and an end point while reproducing the main information on the recording medium, and registers at least one editing program to be registered according to the management information;
Control means for permitting registration in the registration means when the search speed in the reproducing means is a predetermined speed, and prohibiting registration in the registration means when the search speed is higher than the predetermined speed. A playback device.   9. The recording medium according to claim 8, wherein the recording medium includes a main information recording area for recording the main information, and a management information recording area for recording the management information including at least the recording position information of the main information, A reproducing apparatus for registering the editing program based on the recording position information reproduced from the management information recording area corresponding to the main information reproduced from the main information recording area.   10. The main information relating to the interpolated recording position information according to claim 9, wherein the control means detects whether the reproduced recording position information is interpolated or not, with respect to the main information related to the interpolated recording position information. A playback apparatus for prohibiting registration of an editing program.   9. The method according to claim 8, wherein the predetermined speed is a search speed during normal reproduction, and the control means detects whether or not the recording medium is being searched at a speed faster than the search speed during the normal reproduction. Thus, when the recording medium is searched at a speed higher than the search speed at the time of normal playback, registration in the registration means is prohibited.   12. The display device according to claim 8, further comprising display means for displaying the main information, and when the control means prohibits registration in the registration means, the display means is used to give a warning. A playback device characterized by displaying.

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