JP3049437U - Video tape recorder - Google Patents

Abstract

(57) [Summary] [Problem] Because the slack removal portion was unmeasurable, short rewind was performed so that the joint portion became optimal when the previous recording mode and the subsequent recording mode matched. However, when the recording modes are different, inconvenience occurs. SOLUTION: Short rewind at 5 times the reference tape speed corresponding to the recording mode set at the end of recording, and then take the slack of the tape to end the recording.
Until the assembling section ends at the start of recording, no recording starts at the reference tape speed corresponding to the recording mode set at the end of the previous recording, and then recording starts, so connecting recording while keeping the appropriate amount of tape at the connecting part Can be performed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a video tape recorder, and more particularly, to a video tape recorder that performs continuous recording.

[0002]

[Prior art]

 As shown in FIG. 8, when a recording start instruction is given (step S300), the conventional video tape recorder checks the recording mode set at this time (step S310) and returns to the SP mode (standard mode). If the recording mode is set to EP mode (3x speed mode), the non-recording run for one second is performed at the reference tape speed based on the SP mode (step S320). The non-recording run for one second is performed at the reference tape speed based on the EP mode (step S330). Then, recording is started at a reference tape speed based on each recording mode.

When a recording end instruction is issued (step S340), a short rewind for 0.4 seconds at 5 × speed of the SP mode is performed (step S350), and the recording mode set at this time is confirmed. (Step S360) If the SP mode is set, short rewinding is performed for 0.4 seconds at 5 times the reference tape speed based on the SP mode (Step S370), and the EP mode is set. In step S380, a short rewind of 0.4 seconds is performed at a speed five times the reference tape speed based on the EP mode. Then, the slack in the tape is removed, and the recording process ends (step S390).

[0004]

[Problems to be solved by the invention]

 In the conventional video tape recorder described above, there are four combinations of the recording mode at the time of the previous recording and the recording mode at the time of the subsequent recording, and the actual continuous recording situation in these cases is illustrated. 9 to 12.

FIG. 9 shows a case where the first recording mode is the SP mode and the second recording mode is also the SP mode. At the end of recording, short rewind at 0.8 times the standard tape speed based on the SP mode for 0.8 seconds, then unload the video tape while taking the slack, and start the standard tape speed based on the SP mode at the start of recording. To perform a one-second no-recording run. As a result of the unmeasurable slack removal part, the connecting part has almost disappeared.

FIG. 10 shows a case where the first recording mode is the EP mode and the subsequent recording mode is also the EP mode. At the end of recording, after performing a short rewind of 0.4 seconds at 5 times the reference tape speed based on the SP mode and 0.4 seconds at a speed 5 times the reference tape speed based on the EP mode, temporarily remove the video tape while removing the slack. Is unloaded, and at the start of recording, a non-recording run for one second is performed at the reference tape speed based on the EP mode. In this case, as a result of the unmeasured slack removal part, the connection part is about 0.4 seconds.

FIG. 11 shows a case where the first recording mode is the EP mode and the second recording mode is the SP mode. At the end of recording, a short rewind of 0.4 seconds at 5 times the reference tape speed based on the SP mode and 0.4 seconds at a speed 5 times the reference tape speed based on the EP mode is performed. Unload the tape and perform a 1 second no-recording run at the reference tape speed based on the SP mode at the start of recording. In this case, as a result of the unmeasured slack removal portion, a non-recording portion for about 0.3 seconds is generated.

FIG. 12 shows a case where the first recording mode is the SP mode and the second recording mode is the EP mode. At the end of recording, perform a short rewind of 0.8 seconds at 5 times the reference tape speed based on the SP mode, then unload the video tape while taking the slack, and start the reference tape speed based on the EP mode at the start of recording. When the non-recording run for one second is performed, the connecting portion becomes about 0.7 seconds.

In the conventional video tape recorder, since the slack removal portion is unmeasurable, the joint portion is optimal when the previous recording mode and the subsequent recording mode match as shown in FIGS. The short rewind was performed so that the recording mode would be different, causing some inconvenience. For example, in the case shown in FIG. 11, a non-recording portion for 0.4 seconds occurs, and in the case shown in FIG. 12, a connecting portion for 0.7 seconds occurs. In the case shown in FIG. 10, a connecting portion of 0.4 seconds occurs, but the range up to this range was regarded as an appropriate range. As a result, the connecting portion for 0.7 seconds is more than the allowable amount, and it is not preferable that a non-recording portion occurs.

[0010] The present invention has been made in view of the above problems, and has as its object to provide a video tape recorder that can perform continuous recording while maintaining an appropriate amount of tape at the connected portion.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 is to perform short rewind at a predetermined tape speed at the end of recording and then take the slack of the tape to end the recording, and to start recording at a predetermined tape speed for a predetermined period at the start of recording. When the recording is completed, the tape mechanism is short-rewinded to the above-mentioned tape mechanism at a predetermined multiple speed of the reference tape speed at the end of recording, and when the recording is started, the tape mechanism is not used at the same reference tape speed as the reference for the previous short rewind. It is configured to include a duplication recording amount control means for performing recording advance.

The present inventor reviewed the short rewind control process and examined the correlation between the short rewinding process and the amount of winding in the slack removal. As a result, it was found that the following can be basically said. In other words, 3/4 times the tape is consumed by slack removal with respect to the rewind amount calculated by the short rewind. Therefore, even if a tape having a length of 4 seconds is actually short-rewinded, the length of 3 seconds is consumed as a slack during unloading, and the length of 1 second is rewound. .

In such a situation, in the invention according to claim 1 configured as described above, when recording is completed, the tape mechanism is short-rewinded at a predetermined multiple speed of the reference tape speed, and then the slack of the tape is removed. When recording is started, the tape mechanism is driven to perform non-recording at the reference tape speed that was the reference for the previous short rewind, and then recording is started.

If the above example is applied, since the difference between the previous recording mode and the subsequent recording mode basically disappears, only the number of reference tape speeds is considered. Therefore, in the SP mode, a short rewind of 0.8 seconds at 5 × speed rewinds 4 seconds, but 3 seconds of that are consumed by slack removal. By running for one second without recording in the same SP mode, there is no connection. In the EP mode, a short rewind of 0.8 seconds at 5 × speed rewinds 1.3 seconds, but 1 second of that is consumed by slack removal and remains the same at the start of recording. By running for 1 second without recording in SP mode, there is no connection. That is, there is almost no transition between the previous recording mode and the subsequent recording mode.

Note that this observation result is also applicable to FIGS. 9 to 12. Hereinafter, the length will be described in terms of seconds based on the recording speed in the SP mode. Note that the case shown in FIG. 9 is completely the same as that of the current control.

In the case shown in FIG. 10, 2/4 of the short rewind for 2.7 seconds is consumed in slack removal, and 0.3 seconds for rewinding for 0.7 seconds. Since the non-recording run for two seconds is performed, the connection portion is about 0.4 seconds.

Also, in the case shown in FIG. 11, 2/4 of the short rewind for 2.7 seconds is consumed by slack removal, and rewinding for 0.7 seconds is performed. On the other hand, since the non-recording run for one second is performed, a non-recording part for about 0.3 seconds is generated.

Further, in the case shown in FIG. 12, 3/4 of the short rewind of the length of 4 seconds is consumed by slack removal, and a non-recording run for 0.3 seconds is performed. The connecting portion is about 0.7 seconds.

These almost coincide with reality, and as is apparent from the results, in the present invention having the above structure, the tape amount at the connecting portion is maintained at a predetermined length.

The above-mentioned tape mechanism is to short-rewind at a predetermined tape speed at the end of recording and then take the slack of the tape to finish the recording. This includes a method that controls the running state of the tape by controlling the rotation of the capstan motor and performs recording and playback of the tape with the head.

The overlap recording amount control means causes the tape mechanism to short-rewind at a predetermined multiple speed of the reference tape speed at the end of recording, and performs no rewinding at the start of recording at the reference tape speed used as a reference for the previous short rewind. I just need to be able to run the record. As an example of the configuration of the overlapped recording amount control means, the invention according to claim 2 is a video tape recorder according to claim 1, wherein the overlapped recording amount control means is set to a recording mode set at the end of recording. The tape mechanism is short-rewinded at a predetermined multiple speed of the reference tape speed based on the same recording mode, and the same recording mode is stored. In this configuration, the tape mechanism runs without recording.

In the invention according to claim 2 having the above-mentioned configuration, when recording is completed, the tape recorder is short-rewinded at a predetermined multiple of the reference tape speed based on the set recording mode, and the same recording mode is set. Is stored. Then, when recording is started, the recording mode set at the end of the previous recording is read out, and the tape mechanism is caused to run without recording at a reference tape speed based on the recording mode.

As described above, when the non-recording run at the start of recording is performed at the reference tape speed based on the recording mode set at the end of the previous recording, the same recording mode as when the previous short rewind was performed is set. By simply performing the control, the non-recording run at the same reference tape speed can be performed. On the other hand, the overlapping recording amount control means does not necessarily need to perform the non-recording run at the start of recording based on the recording mode set at the end of the previous recording, and from the viewpoint of the original overlapping recording amount control means, It is also possible to perform a short rewind at the end of recording or a non-recording run at the start of recording by fixing the tape speed in advance.

As an example of the configuration of the overlapping recording amount control means in this case, the invention according to claim 3 is the video tape recorder according to claim 1, wherein the overlapping recording amount control means is fixed in advance at the end of recording. The above tape mechanism is short-rewinded at a predetermined multiple speed of the reference tape speed, and the tape mechanism is made to run without recording at the same tape speed at the start of recording.

In the invention according to claim 3 configured as described above, when recording is completed, the tape mechanism is short-rewinded at a predetermined multiple speed of the reference tape speed fixed in advance. Then, when recording is started, the tape mechanism is caused to run without recording at the same tape speed.

[0026]

[Effect of the invention]

 As described above, the present invention can provide a video tape recorder that can perform splicing recording while keeping the spliced tape at an appropriate amount.

According to the second aspect of the present invention, since the short rewind is performed at the end of the recording based on the recording mode, the control is facilitated.

Further, according to the present invention, short rewind and recording at the end of recording are performed based on a preset reference tape speed without depending on the recording mode set at the end of recording. A recordless run at the start can be performed, and control is always constant and easy.

[0029]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a state in which a video cassette is loaded in a tape drive mechanism of a video tape recorder according to an embodiment of the present invention.

The tape drive mechanism 10 includes a drive motor 11 for supplying a drive force, a capstan 12 directly connected to the drive motor 11, a clutch pulley 13 for transmitting the drive force of the drive motor 11 by changing the rotation ratio, Connected to one of the supply-side reel 14a and the take-up-side reel 14b, to which driving force is alternatively supplied from the drive motor 11 via the clutch pulley 13, and the like, and the supply-side reel 14a and the take-up-side reel 14b. The idler 15 is driven so as to supply the driving force from the clutch pulley 13 to the supply side reel 14a and the take-up side reel 14b, and is driven in accordance with the running direction of the video tape to tension the video tape. Arm 16a and lever 16b for giving a video signal, and a head cylinder 17 for recording and reproducing video tapes. And

With this configuration, when recording, the idler 15 is connected to the take-up-side reel 14b, and the capstan 12 and the take-up-side reel 14b are tensioned while tension is applied to the video tape on the supply side by the tension arm 16a. The video tape is driven in the recording direction by the driving force, and the recording is performed by the head cylinder 17. When recording is completed, the idler 15 is connected to the supply reel 14a and the drive force of the capstan 12 and the supply reel 14a is applied while tension is applied to the video tape on the take-up side by the lever 16b. Perform a short rewind to rewind the video tape by a fixed amount.

The drive motor 11 is connected to a power source (not shown), and is driven to rotate in a feed direction or a rewind direction by a power supplied from the power source according to a desired tape running direction. The capstan 12 is arranged coaxially with the drive motor 11, rotates in the same direction as the drive motor 11, and feeds out the video tape at a predetermined speed.

The clutch pulley 13 is composed of a large-diameter pulley 13a connected to the drive motor 11 via a belt, and a small-diameter pulley 13b supported coaxially with the large-diameter pulley 13a. The supplied driving force is transmitted to the small-diameter pulley 13b via the large-diameter pulley 13a.

The supply-side reel 14a and the take-up-side reel 14b are arranged at positions where they can be connected to a small-diameter pulley 13b formed on the clutch pulley 13 via an idler 15, and the idler 15 is connected to the small-diameter pulley 13b. , And is driven to rotate in the same direction as the drive motor 11 and the capstan 12.

The idler 15 is arranged to be connectable to one of the supply-side reel 14a and the take-up-side reel 14b, and is formed on the clutch pulley 13 by being connected to the reel corresponding to the running direction of the video tape. The driving force of the small-diameter pulley 13b is transmitted to each reel.

The tension arm 16a and the lever 16b are movably arranged near the tape running path on the supply side and the take-up side, respectively, and are driven according to the running direction of the video tape to apply tension to the video tape. .

The head cylinder 17 includes a head 17a for performing recording / reproducing processing with the video tape, and a drum motor 17b for controlling the rotation of the head 17a, and the video tape that passes while facing the head 17a. The recording / reproducing process is performed between and.

FIG. 2 is a block diagram showing the configuration of the video tape recorder. According to FIG. 1, the tape drive mechanism 10 includes a servo circuit 18 for controlling the rotation of the drive motor 11 and the drum motor 17b, a counter 19 for detecting the rotation of the supply-side reel 14a and the take-up-side reel 14b, and the like. It is connected to the system controller 20 and performs tape running according to a predetermined form.

In addition to the tape drive mechanism 10 being connected, the system controller 20 includes a timer 30 also serving as a remote control receiver, an operation panel 40 provided with operation buttons and a display, a tuner, a signal system circuit, and the like. A signal processing circuit 50 is connected, and by controlling these in an appropriate order, video recording and playback are executed.

The operation panel 40 is provided with a recording button 41, a stop button 42, a mode switching switch 43, and the like. When the recording button 41 is pressed, recording is performed. If is pressed, the recording ends. The mode switch 43 is composed of two modes, an SP mode (standard mode) and an EP mode (double speed mode). When the recording button 41 is pressed or a recording end instruction is input by the timer 30. Recording is performed in the mode set at the time.

For video recording and playback, the signal processing circuit 50 also performs various processes together with the system controller 20, and the system controller 20 outputs a recording / reproduction switching signal and the like to the signal processing circuit 50. The recording / reproducing switching signal instructs the signal processing circuit 50 to enter a recording mode or a reproducing mode, and records an image signal and an audio signal while writing a control signal in synchronization with tape running. I do.

FIG. 3 is a flowchart showing the operation of the system controller 20 at the end of recording and at the start of recording, and FIG. 4 is a timing chart showing the tape running state in each case.

Here, a case in which recording is ended in the SP mode and recording is started in the EP mode will be described with reference to FIG. When the stop button 42 of the operation panel 40 is pressed or the recording end instruction is input by the timer 30 in the state where the SP mode is set (step S130), the system controller 20 determines that the recording is to be ended and outputs the recording switching signal. The signal is output to the signal processing circuit 50 and the recording signal is reduced (step S135). The drive motor 11 is rotated in the rewind direction at 5 times the reference tape speed corresponding to the SP mode to start short rewind (step S140). When 0.8 seconds have elapsed since the start of the short rewind (steps S145 and S150), the short rewind is terminated and the tape is slackened (step S155), and the SP mode set this time is reset. It is stored (step S160).

Thereafter, when the recording button 41 of the operation panel 40 is pressed or a recording instruction is input by the timer 30 in a state where the setting is changed to the EP mode (step S 100), it is determined that the recording is to be started, and the recording is started. A switching signal is output to the signal processing circuit 50, and the stored previous SP mode is read (step S105). The drive motor 11 is rotated in the feed direction at a reference tape speed corresponding to the SP mode while being controlled by the CTL signal. Then, the non-recording start is started (step S110). Until the end of the assembly section for one second, the non-recording run continues while controlling with the same CTL signal, and when the end of the assembly section is switched to the reference tape speed corresponding to the EP mode set this time. (Step S120) The recording signal is raised (Step S125).

As described above, short rewinding is performed at a speed five times the reference tape speed corresponding to the recording mode set at the end of recording, then the tape is slackened, and the assembly is completed. In this sense, the tape drive mechanism 10 that starts recording after performing no-recording advance at the reference tape speed corresponding to the recording mode set at the end of the previous recording until the recording is completed constitutes a tape mechanism in this sense.

In addition, the tape drive mechanism 10 is short-rewinded at five times the reference tape speed corresponding to the recording mode set at the end of the recording, and is adapted to the recording mode set at the end of the previous recording at the start of the recording. In this sense, the system controller 20 for non-recording and running at a reference tape speed constitutes an overlapped recording amount control means.

At the time of short rewind at the end of recording, the tension arm 16a is driven to remove the tension on the video tape applied to the supply side, and the lever 16b is driven to drive the video tape on the take-up side. The drive motor 11 is connected to the supply side reel 14a by applying tension and simultaneously driving the idler 15 connected to the take-up side reel 14b.

Here, in order to make the correlation between the amount of short rewind by the capstan 12 and the amount of slack removal more accurate, short rewind is started by the same capstan 12 after the completion of the mechanical transfer. Is preferred.

Even if short rewind is performed on the capstan 12 after the mechanical transfer is completed, when unloading the video tape, the video tape including the slack is taken up, and the short rewind is performed. The amount of tape consumed is somewhat consumed. And it was confirmed that this consumed amount was approximately 3/4 of the amount of short rewind.

Therefore, in the present embodiment, in order to keep an appropriate amount of tape at the connecting portion, a short rewind of 0.8 seconds is performed at 5 times the reference tape speed based on the set recording mode at the end of recording. In contrast, at the start of recording, a non-recording run for one second is performed at the standard tape speed based on the recording mode.

As shown in FIG. 5, when a short rewind of 0.8 seconds is performed at 5 times the reference tape speed based on the SP mode at the end of the recording, the tape for 4 seconds is rewound by the capstan 12. Practically, slack removal consumes 3/4 times the amount of 3 seconds, and in fact, the tape for 1 second is wound. For this reason, if the non-recording run for one second is performed at the reference tape speed based on the SP mode at the start of the next recording, there is almost no connection.

As shown in FIG. 6, when recording is completed, a short rewind of 0.8 seconds is performed at a speed 5 times the reference tape speed based on the EP mode. Although the tape is rewound by the capstan 12, the tape is consumed by ３ times for one second due to the slack removal or the like, and the tape for 0.3 second is actually wound. For this reason, if the non-recording run for about 1 second is performed at the reference tape speed based on the EP mode at the start of the recording, 0.3 second in the SP mode is used for the run, and the connecting portion is almost eliminated.

Accordingly, it is possible to perform continuous recording while maintaining a proper amount of tape at the connected portion without overlapping recording of a part to be viewed due to overlapping recording. In addition, the conditions such as the speed and time are not limited as long as the recording can be performed while maintaining the appropriate amount of tape at the connecting portion.

Therefore, as an example in which another condition is applied, short rewind at the end of recording and non-recording start at the start of recording are performed based on a preset reference tape speed regardless of the recording mode setting. In this case, a recording procedure of the system controller 20 when recording is started in the SP mode and ended in the EP mode will be described with reference to a flowchart shown in FIG.

When the recording button 41 of the operation panel 40 is pressed or a recording instruction is input by the timer 30 in a state where the SP mode is set (step S 200), the system controller 20 determines that the recording is to be started, and determines that the recording is to be started. Is output to the signal processing circuit 50, and while controlling with the CTL signal, the drive motor 11 is rotated in the feed direction at a predetermined reference tape speed set in advance to start the non-recording advance (step S205). At this tape speed, the non-recording run continues while controlling by the CTL signal until the one-second assembling section ends, and when the assembling section ends, the reference tape speed corresponding to the SP mode set this time is reached. Switching is performed (step S215), and the recording signal is raised (step S220).

When the stop button 42 of the operation panel 40 is pressed or a recording end instruction is input by the timer 30 in the state where the EP mode is set (step S 225), it is determined that the recording is ended, and the recording switching signal is output. Is output to the signal processing circuit 50 to lower the recording signal (step S230). The speed is switched to 5 times the predetermined reference tape speed, and the drive motor 11 is rotated in the rewind direction to start short rewind (step S235). When 0.8 seconds have elapsed since the start of the short rewind (steps S240 and S245), the short rewind is terminated and the tape is slackened (step S250).

Next, the operation of the present embodiment having the above configuration will be described. When the user presses down the stop button 42 of the operation panel 40 or inputs a recording end instruction from the timer 30 (step S130), the system controller 20 outputs a recording switching signal to the signal processing circuit 50 and outputs the recording signal. It is lowered (step S135). Then, the drive motor 11 is rotated in the rewinding direction at 5 times the reference tape speed corresponding to the currently set recording mode to start short rewind (step S140). When 0.8 seconds have elapsed since the start of the short rewind (steps S145 and S150), the short rewind is terminated and the tape is slackened (step S155), and the recording mode set at this time is set. Is stored (step S160).

Thereafter, when the user presses down the recording button 41 of the operation panel 40 or inputs a recording instruction from the timer 30 in order to continue recording on the same tape (step S 100), the system controller 20 starts the operation. Judging that the recording is to be started, the recording switching signal is output to the signal processing circuit 50, the stored previous recording mode is read (Step S105), and the recording is driven at the reference tape speed corresponding to the recording mode while being controlled by the CTL signal. The non-recording start is started by rotating the motor 11 in the feed direction (step S110). Until the end of the assembling section for one second at this tape speed, the non-recording run continues while controlling by the CTL signal. When the assembling section ends, the reference tape corresponding to the currently set recording mode is set. Switching to the speed (step S120), the recording signal is raised (step S125). Then, the recording is continued at this tape speed until the user presses the stop button 42 of the operation panel 40 or inputs a recording end instruction from the timer 30 next.

As described above, short rewinding is performed at a speed five times the reference tape speed corresponding to the recording mode set at the end of recording, then the tape is slackened, and the process ends. Until the recording ends, recording starts at the reference tape speed corresponding to the recording mode set at the time of the previous recording end, and then recording starts, so it is possible to record while keeping the appropriate amount of tape at the joint And

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a tape drive mechanism of a video tape recorder.

FIG. 2 is a block diagram of a video tape recorder according to an embodiment of the present invention.

FIG. 3 is a flowchart showing a recording process in the video tape recorder.

FIG. 4 is a timing chart showing a tape running state at the end of recording and at the time of recording and reproduction.

FIG. 5 is a timing chart showing a tape running state when recording is ended in the SP mode and recording is started in the SP mode.

FIG. 6 is a timing chart showing a tape running state when recording is ended in the EP mode and recording is started in the EP mode.

FIG. 7 is a flowchart showing a recording process of a video tape recorder according to a modification.

FIG. 8 is a flowchart showing a recording process of a video tape recorder according to a conventional example.

FIG. 9 is a timing chart showing a tape running state when recording is ended in the SP mode and recording is started in the SP mode.

FIG. 10 is a timing chart showing a tape running state when recording is ended in the EP mode and recording is started in the EP mode.

FIG. 11 is a timing chart showing a tape running state when recording is ended in the EP mode and recording is started in the SP mode.

FIG. 12 is a timing chart showing a tape running state when recording is ended in the SP mode and recording is started in the EP mode.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Tape drive mechanism 11 ... Drive motor 12 ... Capstan 13 ... Clutch pulley 13a ... Large diameter pulley 13b ... Small diameter pulley 14a ... Supply side reel 14b ... Takeup side reel 15 ... Idler 16a ... Tension arm 16b ... Lever 17 ... Head Cylinder 17a Head 17b Drum motor 18 Servo circuit 19 Counter 20 Syscon 30 Timer 40 Operation panel 41 Record button 42 Stop button 43 Mode switch 50 Signal processing circuit

Claims (3)

[Utility model registration claims] 1. A tape mechanism for short-rewinding at a predetermined tape speed at the end of recording and then ending by taking up slack of the tape, and starting recording after a non-recording advance at a predetermined tape speed for a predetermined period at the start of recording. A duplication recording amount control means for causing the tape mechanism to short-rewind at a predetermined double speed of the reference tape speed at the end of the recording operation and causing the tape mechanism to perform non-recording advance at the reference tape speed which was the reference at the time of the previous short rewind at the start of recording. Video tape recorder characterized by the following. 2. The video tape recorder according to claim 1, wherein the overlap recording amount control means causes the tape mechanism to short-rewind at a predetermined multiple speed of a reference tape speed based on a recording mode set at the end of recording. A video tape recorder storing the recording mode, reading out the recording mode set at the end of the previous recording at the start of recording, and causing the same tape mechanism to perform non-recording advance at a reference tape speed based on the recording mode. 3. The video tape recorder according to claim 1, wherein the overlap recording amount control means causes the tape mechanism to short-rewind at a predetermined multiple speed of a reference tape speed fixed at the end of recording, and to start recording at the start of recording. A video tape recorder characterized by having the tape mechanism run without recording at the same reference tape speed.