JP3763426B2 - Magnetic recording / reproducing apparatus / method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a magnetic recording / reproducing apparatus such as a video tape recorder (VTR) that records and reproduces images and sounds on a magnetic tape.
[0002]
[Prior art]
FIG. 5 is an explanatory view showing a conventional video tape editing method. Conventionally, editing is performed by connecting the video and audio output 30b of the playback side VTR 31 to the input of the recording side VTR 32 and connecting the dedicated editing machine 33 to both the playback side and the recording side VTR. That is, the connected editing machine 33 is operated to send a command 30a to the playback side VTR 31 in order to program a plurality of editing start points (cut-in points) and editing end points (cut-out points). The cut-in point and cut-out point are stored.
[0003]
In the subsequent editing operation, the editing machine 33 sends a command 30a for playback from the programmed cut-in point to the cut-out point to the playback side VTR 31, and accordingly starts recording and ends recording to the recording side VTR 32. Command 30c is sent and automatic editing is performed in synchronization with the reproduction side VTR 31 and the recording side VTR 32.
[0004]
Here, the cut-in point and the cut-out point are tape counter values that represent the start position and end position of a scene to be copied to another tape. In a system where the absolute position is recorded on the tape, it is possible to set the position as the tape counter value, but in general, output from a rotating body (capstan motor) that rotates by pressing against the tape. The relative position of the tape is measured by counting the pulses that are generated.
[0005]
In recent years, VTRs incorporating the functions of the editing machines have been proposed. That is, the program function for determining the cut-in point and the cut-out point, and the playback side VTR operates so as to play back from the cut-in point to the cut-out point in accordance with the contents of the program. This is a VTR that generates a recording start and a recording end command to control the VTR.
[0006]
In such a VTR, it is common to use an infrared remote controller as a means for controlling the recording-side VTR, and since a VTR of various manufacturers must be controlled, a remote control code learning function is incorporated. VTR has also appeared.
[0007]
Such automatic editing using a VTR with a built-in editing function does not require a dedicated editing machine, has few restrictions on the recording side VTR for control by a remote controller, and does not require complicated wiring. Can be mentioned.
[0008]
[Problems to be solved by the invention]
However, the above conventional example has the following problems, and improvement has been demanded. In other words, in order to program the cut-in / cut-out points, the recorder keys such as playback, stop, fast-forward and the cut-in / cut-out input keys installed in the main body have to be operated in a complicated manner.
[0009]
Further, during the edit programming operation, the screen is muted during normal mode transition, for example, FF → STOP → PLAY, and the target point passes during the muting, making it difficult to search for the editing point.
[0010]
In addition, if the normal VTR mode such as PLAY, STOP, FF, REW, FF search, and REW search is performed during the editing programming operation and the editing operation, the pinch roller and the capstan motor may be unbonded. Many occur, and the counter value at the cut-in / cut-out point shifts in the relative tape counter method.
[0011]
SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic recording / reproducing apparatus that is easy to operate and can easily search for an editing point on a tape when performing editing using a built-in editing function.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, a magnetic recording / reproducing apparatus according to claim 1 of the present invention reads information recorded on a magnetic tape and causes the other magnetic recording / reproducing apparatus to record the read information. In a magnetic recording / reproducing apparatus that performs an editing operation, a determination unit that determines an editing start point and an editing end point of a magnetic tape from which the information is read during editing programming , and the determined editing start point and editing end point are stored. storage means, when editing execution, along with reading out the information according to the editing start point and edition end point stored in the storage means, and control means for controlling the recording operation of said other magnetic recording and reproducing apparatus provided, when determining the editing start point and edition end point by the determining means, the edition start point and edition end point by operating the single operating means finger And wherein the switching of the playback speed in the editing programming is performed.
[0013]
In the magnetic recording and reproducing apparatus according to claim 2 is the magnetic recording and reproducing apparatus according to claim 1, by manipulating repeating the single operating means, at least high-speed reproduction, normal-speed playback, the editing start point designating and editing Each of the functions for specifying the end point can be executed in a predetermined order, and a display means for displaying the function to be executed next on the screen is provided.
[0014]
In the magnetic recording and reproducing apparatus according to claim 3, in the magnetic recording and reproducing apparatus according to claim 1, when the single operating means is operated, and Turkey continues to output the reproduced image at the editing programming Features.
[0015]
Magnetic recording and reproducing method according to claim 4 reads the information recorded on the magnetic tape, the magnetic recording and reproducing method of performing an editing operation by recording the read information in a magnetic recording and reproducing apparatus, when editing programming Determining the edit start point and edit end point of the magnetic tape from which the information is read, storing the determined edit start point and edit end point, and storing the edit start point and edit end point stored during execution of editing. And reading the information in accordance with each step and controlling the recording operation of the magnetic recording / reproducing apparatus, and at the time of the editing programming, the editing start point and the editing end by operating a single operation means It is characterized in that a point is designated and a reproduction speed is switched during the editing programming .
[0016]
Engaging Ru playback apparatus in claim 5 is a reproducing apparatus having a built-in editing functions, and mode changing means for instructing the usual variations from the reproduction mode to the edit mode for programming or execute editing, the mode changing means When the editing mode is changed, the processing means for performing different reproduction control at the time of editing programming and editing execution, the processing means performs the reproduction operation of information in the case of the editing programming, The edit start point and edit end point are determined and the playback speed is changed according to the operation of a single operation means, and the determined edit start point and edit end point are stored. In this case, the information corresponding to the stored editing start point and editing end point is reproduced and the recording operation of another recording device is controlled and reproduced. Characterized in that to record the broadcast.
[0017]
Engaging Ru playback apparatus in claim 6, in the reproducing apparatus according to claim 5, wherein the processing means, in response to said single operating means is repeatedly operated, at least high-speed reproduction, normal-speed playback, edit The start point and the edit end point are determined in a predetermined order .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the magnetic recording / reproducing apparatus of the present invention will be described. The magnetic recording / reproducing apparatus in the present embodiment is applied to an editing function built-in VTR.
[0019]
FIG. 1 is an explanatory diagram showing a configuration of an editing function built-in VTR in the embodiment. In the figure, reference numeral 10 denotes an editing function built-in playback side VTR.
[0020]
Reference numeral 11 denotes a recorder key for operating VTR reproduction, stop, etc., and generates a DC voltage 11a corresponding to the pressed key. 12 is an A / D converter for A / D converting the DC voltage 11a, and 13 is an editing operation key for performing an editing operation.
[0021]
14 is a mode select switch for switching between a normal VTR mode and an edit mode, 15 is a processing means for controlling the entire operation of the VTR, 16 is a mechanical deck, 17 is a storage means for reading and writing by the processing means 15, and 18 is a playback from the mechanical deck 16. Video / audio signal processing means for receiving a signal and processing a video / audio signal.
[0022]
19 is a remote control light emitting LED that emits a remote control command 11e from the processing means 15, and 20 is a recording side VTR that records the video signal and the audio signal 11j from the video / audio signal processing means 18 by receiving a command from the remote control light emitting LED 19. It is. In FIG. 1, all the parts other than the recording side VTR 20 are included in the reproduction side VTR 10.
[0023]
There are at least two normal modes of operation of the playback VTR 10; a normal VTR mode and an edit programming and an edit mode for executing the mode. These modes are selected by the mode select switch 14.
[0024]
In the reproduction-side VTR 10, the VTR mode is set according to the selected mode and the operation input received by the processing means 15, that is, the digital voltage signal 11b from the A / D converter 12 and the edit operation signal 11c from the edit operation key 13. The processing means 15 controls each part in the vicinity.
[0025]
The processing means 15 detects the state from various sensors to the mechanical deck 16 according to the mode transition, and outputs a command or the like for starting / stopping each motor and controlling the rotation direction through the signal line 11f. Similarly, the processing means 15 also outputs commands such as playback and mute, character information for display, etc. to the video / audio signal processing means 18 through the signal line 11g in accordance with the mode transition.
[0026]
In the editing mode, the processing unit 15 stores the counter values of the cut-in and cut-out points programmed by the editing operation key 13 in the storage unit 17 during the program operation. When executing the editing operation, the processing means controls reproduction, remote control command generation, and the like according to the data stored in the storage means 17. That is, reproduction is started before the programmed cut-in point, and remote control data for starting recording is sent to the remote control light emitting LED 19 when the cut-in point is passed. Thereafter, normal reproduction is continued, and remote control data for recording completion is sent again to the remote control light emitting LED when passing through the cutout point. Editing is performed by repeating the above control on a plurality of programmed data.
[0027]
The editing operation of the editing function built-in VTR 10 having the above functions will be described. FIG. 2 is an explanatory diagram showing an output screen in the editing mode of the editing function built-in VTR. The screen display 41 is used to show the layout. In the upper right part of the screen display 41 is the current mode (PLAY), below it is counter information (1:09:58) indicating the current tape position, and in the center left of the screen is the counter value of the already programmed cut-in position. (-:-:-Represents unprogrammed state), the counter value of the cutout position already programmed on the right side (-:-:-similarly unprogrammed state), and the function of the edit operation key 13 at the bottom of the screen An icon group representing is displayed.
[0028]
This screen display 41 represents a playback state in which nothing has been programmed yet. In this state, the function of the editing operation key 13 is an input of a cut-in point. With this as an initial function, the editing operation key 13 is input once every time the HSC → PLAY → CutOUT input → HSC → PLAY → CutIN input (HSC: (High-speed forward search)
And cyclically change its function.
[0029]
In addition, the currently selected function is highlighted in the icon group of the editing operation key 13 displayed at the bottom of the screen. When the editing operation key 13 is pressed from the state of the screen display 41, the screen display 42 is switched. That is, the counter value (1:10:11) indicating the tape position at the time of pressing is stored in the storage means 17 as a cut-in point, and the position of the cut-in point is displayed on the screen.
[0030]
The VTR mode at this time is normal reproduction, and the function of the editing operation key 13 is HSC. When the editing operation key 13 is pressed from this state, the VTR mode is switched to the high-speed search as shown in the screen display 43, and the cut-out point can be quickly reached while confirming the reproduction screen.
[0031]
The function of the editing operation key 13 at this time is PLAY as highlighted in the lower part. When recognizing that the desired cutout point is approaching while checking the screen, the user presses the editing operation key 13 again. As shown in the screen display 44, the screen is switched to the normal reproduction screen, and the function of the editing operation key 13 is changed with the input of the cutout point.
[0032]
When the editing operation key 13 is pressed at a desired reproduction position, the counter value (1:22:17) at that time is stored in the storage means 17 as a cutout point, and the cutout point is set as shown in the screen display 45. It is displayed on the screen at the display position.
[0033]
Therefore, the user can determine the cut-out point while checking the screen in detail during normal playback. At this time, the function of the editing operation key 13 is again HSC, and a quick tape feed to the next cut-in point can be performed.
[0034]
FIG. 3 is an explanatory diagram showing mode transition during editing programming. The mode transition from the forward high-speed search mode (HSC) indicated by reference numeral 51 to the normal reproduction mode (PLAY) indicated by reference numeral 63 will be described in detail. There are two types of paths for this mode transition, which are selected by switching the switch 52 with the pressed key information 64.
[0035]
That is, when the pressed key information 64 is the editing operation key 13, the path reaches the PLAY 63 directly via the 9 × speed (× 9) indicated by the upper reference numeral 53 through the 3 × speed (× 3) indicated by the reference numeral 56. . If the pressed key information 64 is the recorder key 11, the path passes through the 9 × speed (× 9) indicated by reference numeral 57, the 1 × speed (× 1) indicated by reference numeral 61, temporarily passes through STOP 62, and then goes to PLAY 63. To reach. Since this is a normal mode transition, the playback screen is muted on the way, making it impossible to continuously check the playback screen.
[0036]
However, since the playback screen is always displayed during the programming operation using the editing operation key 13, it is possible to continuously check the playback screen.
[0037]
Further, when the changeover switch 52 is controlled by the mode select switch information, it is possible to perform mode transition so as to keep the image output state continuously in the edit mode, and more comfortable editing programming can be performed.
[0038]
Further, since the mode transition shown in FIG. 3 transits from the HSC 51 to the PLAY 63 without passing through the STOP 62, it is not necessary to release the pressure bonding between the tape and the capstan motor. That is, in the relative counter method by counting the pulses from the rotating body, there is no deviation between the counter value and the tape position.
[0039]
Accordingly, the correspondence between the cut-in and cut-out edit points and the counter value does not deviate, so that highly accurate editing can be performed.
[0040]
FIG. 4 is an explanatory diagram showing mode transition in which the pressure bonding between the tape and the capstan is not released during the editing operation. In the mode transition when the STOP key is pressed, the mode shifts not to the STOP mode but to the STILL mode 73 for reproducing a still image. Further, when the STOP key is pressed in the STILL mode 73, the STOP mode 74 is shifted to for the first time.
[0041]
If the HSC mode is used instead of the FF mode 71 and the HSR (high-speed reverse search) is used instead of the REW mode 72, the tape counter will not be deviated unless the mode is shifted to the STOP mode 74 and always output. The screen can be confirmed.
[0042]
【The invention's effect】
According to the magnetic recording / reproducing apparatus according to claim 1 of the present invention, when performing the editing operation by reading the information recorded on the magnetic tape and recording the read information on another magnetic recording / reproducing apparatus, At the time of editing programming, the edit start point and edit end point of the magnetic tape from which the information is read out are determined , the determined edit start point and edit end point are stored, and the edit stored in the storage means at the time of editing execution When the information is read according to the start point and the edit end point, the recording operation of the other magnetic recording / reproducing apparatus is controlled, and the edit start point and the edit end point are determined by the determining means , specifying the editing start point and edition end point by operating the operating means, and since the switching of the playback speed in the editing programming is performed, editing programming Operation it is possible to easily carry out editing can the content is recorded to the recording and reproducing apparatus by the execution, Ru can be easily retrieved editing point of the tape without easy to operate yet shifted with .
[0043]
According to the magnetic recording / reproducing apparatus of the second aspect, by repeatedly operating the single operation means , at least high-speed reproduction, normal-speed reproduction, editing start point designation, and editing end point designation functions are predetermined. together becomes executable in order, the functions to be executed next because with a display means to display on the screen, it is possible to perform an operation for editing programming easy to understand user.
[0044]
According to the magnetic recording and reproducing apparatus according to claim 3, when the single operating means is operated, than that continues to output the reproduced image at the editing programming, such as the editing start point and edition end point Editing points can be easily searched.
[0045]
According to the magnetic recording / reproducing method according to claim 4, in the magnetic recording / reproducing method for performing an editing operation by reading the information recorded on the magnetic tape and causing the magnetic recording / reproducing apparatus to record the read information. At the time of programming, the edit start point and edit end point of the magnetic tape from which the information is read are determined, the determined edit start point and edit end point are stored, and the stored edit start point and edit point are stored at the time of editing. In addition to reading out the information according to the end point and controlling each recording operation of the magnetic recording / reproducing apparatus, the editing start point and the editing can be performed by operating a single operation means during the editing programming. specified end point, and since the switching of the playback speed in the editing program, it is possible to easily perform the operation of editing programming Both editing can be recorded in the reproducing apparatus the contents by executing, Ru can be easily retrieved the tape editing point without easy yet shifted operations have.
[0046]
According to engagement Ru playback apparatus in claim 5, in the case of instructing the usual variations from the reproduction mode to the edit mode for programming or perform editing, it has been changed in the edit mode by the mode changing means, editing Different playback control is performed at the time of programming and at the time of editing execution, and the processing means performs an information playback operation at the time of the editing programming, and an editing start point in response to an operation of a single operating means. Then, the edit end point is determined and the playback speed is changed, and the determined edit start point and edit end point are stored. In the case of the editing execution, the edit start point and the edit end point are stored. Information can be reproduced, and the recorded information can be recorded by controlling the recording operation of other recording devices. In, it is possible to reproduce operation suitable to the situation of the editing operations.
[0047]
According to engagement Ru playback apparatus in claim 6, in response to said single operating means is repeatedly operated, at least high-speed reproduction, normal-speed playback, the determination of the editing start point and edition end point determination is given since executed in order, it is possible to more easily perform an operation for editing programming.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a configuration of an editing function built-in VTR according to an embodiment;
FIG. 2 is an explanatory view showing an output screen in an editing mode of a VTR with a built-in editing function.
FIG. 3 is an explanatory diagram showing mode transition during editing programming.
FIG. 4 is an explanatory diagram showing mode transition in which the pressure bonding between the tape and the capstan is not released during the editing operation.
FIG. 5 is an explanatory diagram showing a conventional video tape editing method.
[Explanation of symbols]
10 Playback VTR
13 Editing operation key 14 Mode select switch 15 Processing means 17 Storage means 20 Recording side VTR

Claims (6)

In a magnetic recording / reproducing apparatus that reads information recorded on a magnetic tape and performs an editing operation by recording the read information in another magnetic recording / reproducing apparatus.
A determination means for determining an edit start point and an edit end point of the magnetic tape from which the information is read during editing programming ;
Storage means for storing the determined edit start point and edit end point;
When editing execution, along with reading out the information according to the editing start point and edition end point stored in the storage means, and control means for controlling the recording operation of said other magnetic recording and reproducing apparatus,
In determining the editing start point and edition end point by said determining means specifies the editing start point and edition end point, and the switching of the playback speed in the editing programming is performed by operating the single operating means magnetic recording and reproducing apparatus, characterized in that. By repeatedly operating the single operation means , at least the functions of high-speed playback, normal-speed playback, edit start point specification, and edit end point specification can be executed in a predetermined order and executed next. 2. The magnetic recording / reproducing apparatus according to claim 1, further comprising display means for displaying a function to be displayed on a screen. It said single if the operation unit is operated, the magnetic recording and reproducing apparatus according to claim 1, wherein the Turkey continues to output the reproduced image at the editing programming. In a magnetic recording / reproducing method for reading information recorded on a magnetic tape and performing an editing operation by causing the magnetic recording / reproducing apparatus to record the read information,
At the time of edit programming, the edit start point and edit end point of the magnetic tape from which the information is read are determined,
Storing the determined edit start point and edit end point;
When editing is performed, the information is read according to the stored editing start point and editing end point, and each step of controlling the recording operation of the magnetic recording and reproducing device,
A magnetic recording / reproducing method characterized in that, at the time of the editing programming, an editing start point and an editing end point are designated by operating a single operation means , and a reproduction speed is switched during the editing programming . In playback devices with built-in editing functions,
Mode changing means for instructing a change from the normal playback mode to an editing mode for programming or executing editing;
When the mode is changed to the edit mode by the mode change means, the processing means for performing different reproduction control at the time of edit programming and edit execution,
The processing means includes
In the case of the editing programming, the information reproduction operation is performed, and the edit start point and the edit end point are determined and the reproduction speed is changed according to the operation of the single operation means. Memorize edit start point and edit end point,
When the editing is executed, information is reproduced according to the stored editing start point and editing end point, and the reproduced information is recorded by controlling the recording operation of another recording device. Playback device. The processing means executes at least high-speed playback, normal speed playback, determination of an edit start point, and determination of an edit end point in a predetermined order in response to the single operation means being repeatedly operated. The playback apparatus according to claim 5.

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