JPH06215538A - Video tape recorder - Google Patents

Abstract

PURPOSE:To accurately retrieve the program with a simple constitution and to improve operability without the need for complicated operation in a recorded program retrieved method. CONSTITUTION:At the time of beginning image recording of the program, a program serching signal is recorded in a magnetic tape 2 by a control signal recording and reproducing circuit 10, and simultaneously, the output of a microcomputer 9 is stored in an SRAM 11. At the time of reproducing, the output result of the microcomputer 9 about a recording starting position is read from the SRAM 11 and a tape is sent to the neighborhood of the starting position of the image recording of the program based on the result by a tape driving circuit 12, and thereafter, the program serching signal recorded in the magnetic tape 2 is detected by the circuit 10. Consequently, the program is retrieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video tape recorder (hereinafter abbreviated as VTR) having a recording / playback function, and particularly at which position of a tape is used when playing a recorded program. However, it is effective in automatically searching for the beginning of the program selected for reproduction and reproducing from that position.

[0002]

2. Description of the Related Art In recent years, with the spread of satellite broadcasting and cable television, opportunities for recording by VTR are increasing. But,
On the other hand, some users are too busy to watch all the recorded programs. Therefore, the user often takes a selective program viewing method of recording only and watching all the programs he / she likes later. In such a case, it is always a problem that I do not know which cassette recording that program,
I want to record a program from now on, but I don't know if I can erase this cassette-recorded program. In any case, the problem is caused because the recorded contents on the cassette cannot be understood at a glance and there is no choice but to actually play the tape to check the recorded contents.

Then, as a method recently proposed,
The VTR has a built-in memory, and for each recording, program information such as recording date, program start / end time, channel, program title and remaining amount data which is tape position information at the start of recording is stored, and the memory is stored during playback. There is one that retrieves the information stored in and retrieves the program information based on it and automatically finds the beginning of the program recording. The operation from recording to searching for a program in the above method will be described below.

First, when recording is started, the VTR records a cue signal on a tape, and information such as the recording date, channel, start and end time, and tape remaining amount data at the recording start position are built into the VTR. Store in memory. By the way, the tape remaining amount data is a value indicating where on the reel the magnetic tape is wound. For example, the rotation cycle of the supply side reel (hereinafter abbreviated as S reel) and the winding side reel. By measuring the rotation cycle of the reel (hereinafter, abbreviated as T reel), the tape remaining time from the current tape winding position to the end of the tape can be detected.

FIG. 2 is an enlarged view of the reel portion of the cassette, and a method for detecting the remaining tape amount data will be described with reference to FIG. In FIG. 2, Vt is the traveling speed [m / s] of the magnetic tape, r is the hub diameter [m] of the S reel 4 and the T reel 5, and Rs and Rt are the S reel 4 and T
The radius [m] to the outer circumference of the magnetic tape wound around the reel 5, Ss and St are S reel 4 and T reel, respectively.
The area [m ² ] including the magnetic tape wound around the reel 5 and the reel hub, ωs and ωt are S reel 4 and T, respectively.
It is the rotational angular velocity [rad / s] of the reel 5. Angular velocity ω
s and ωt can be obtained by measuring the rotation speeds of the S reel 4 and the T reel 5. Therefore, S reel 4
And the radii Rs and Rt to the outer circumference of the magnetic tape wound around the T reel 5 are obtained by the following equations.

[0006]

[Equation 1]

[0007]

[Equation 2]

Therefore, the total area S of the tape including the reel hub, which corresponds to the length of the magnetic tape wound on this cassette, is given by the following equation.

[0009]

[Equation 3]

By the way, there are several types of magnetic tapes wound on a cassette, for example, a consumer VTR.
According to the VHS standard of 120 minutes tape, 90 minutes tape, 60 minutes
There are minute tape, 30 minute tape, etc. Therefore, the total tape area S ₁₂₀ , S ₉₀ , S
_{If 60} and S ₃₀ are calculated, it is possible to detect how many minutes the tape currently inserted in the VTR is. Based on the result, the tape area Sso including the reel hub on the S reel side is obtained again. For example, the detection result is 120 minutes tape.
Sso is expressed by the following equation.

[0011]

[Equation 4]

Then, the net tape area excluding the area of the reel hub is divided by the tape thickness τ [m], and the tape remaining amount L [m] is divided by the tape speed. Thus, the remaining time T [s] can be calculated. That is,

[0013]

[Equation 5]

[0014]

[Equation 6]

The remaining tape data can be obtained by calculating Next, when recording is finished and the program is played back, information about the program is read from the memory, and when the user selects the program to be played, the current remaining tape amount is detected by the method described above and stored in the memory. Compare the remaining data at the recording start position of the program to be searched, send the tape to its vicinity in fast-forward or rewind mode, and then detect the cue signal recorded on the tape at the start of recording to find the beginning of the program. The playback mode is set.

[0016]

However, since the conventional method uses the remaining amount data as the position information for starting the program recording, it has the following problems.

First, detecting the remaining amount data is to obtain the length of the tape wound around the S reel, and for that purpose, the total length of the cassette tape inserted as described above, For example, it is necessary to identify 120 minutes or 60 minutes. On the other hand, with the spread of VTRs in recent years, various types of cassettes and their total lengths have come into circulation. The detection of the remaining amount data is generally performed by a microcomputer incorporated in the VTR, and for that purpose, it is necessary to preset the data of the total area of all kinds of cassette tapes on the market. However, it cannot handle the new length of cassette tapes that are released after the product is put on the market.

Secondly, in the above-described remaining amount data detecting method, the area of the tape wound around the S reel is detected and the tape thickness τ [m] corresponding to the type of the identified cassette.
Divide by to find the remaining length. However, in order to lengthen the recordable time of the tape, for example, a tape having a thickness of 140 minutes or more has a small thickness. However, there is no method to determine whether the cassette tape inserted in the VTR is thin or standard, and the user generally sets the tape type by operating the VTR switch. Target. Therefore, set the switch incorrectly, e.g. using a standard cassette with a standard tape thickness, but the setting was a thin tape, and it was set correctly during recording but wrong during playback. Naturally, operation mistakes such as being a thin tape have occurred. In such a case, the area of the tape wound around the S reel can be correctly obtained by measuring the rotation speed of the reel, but since the tape thickness τ is incorrect when the tape length is calculated, the remaining amount data is also incorrect. Will be calculated. Therefore, since the remaining amount data is used as a guide for searching the recording start position of the program, the searching operation cannot be performed correctly.

The present invention solves the problems as described above. It is possible to automatically search for recorded programs by a simple operation, and the complexity of program recording is dramatically improved. An object of the present invention is to provide a video tape recorder capable of performing accurate program search without any operation even if various cassette tapes having different tape thicknesses are used.

[0020]

In order to solve the above-mentioned problems, the VTR of the present invention comprises a speed detecting means for detecting the rotation speed of the reel base on the winding side of the tape and a fast-forwarding of the tape at a speed different from that at the time of recording. Alternatively, a tape running control means for rewinding, a computing means for converting the rotational speed of the take-up reel stand detected by the speed detecting means from the tape running speed during fast forward or rewind into a rotational speed during recording, and a tape A cue signal recording / reproducing means for recording / reproducing a signal for cueing above, and a storage means for storing the rotation speed of the take-up reel stand detected by the speed detecting means at the start of recording a program,
A comparison calculation device for reading and comparing the converted value output by the calculation means and the speed stored in the storage means is provided, and when the recording of the program is started, the cue signal recording / reproducing means is used to cue to the tape. And a rotation speed of the take-up reel stand at a position where the cueing signal detected by the speed detection means is recorded in the storage means, and is stored in the storage means at the time of reproduction. By comparing the rotation speed of the take-up reel stand at the position where the cue signal of the program is recorded and the speed detected by the speed detection means by the calculation means to the rotation at the time of recording by the comparison calculation means, After the tape running control means fast forwards or rewinds the tape to the vicinity of the position where the cue signal is recorded, the cue signal recording / reproducing means detects the cue signal. And configured to transfer the-loop recording start position of the program.

Also, first speed detecting means for detecting the rotation speed of the reel side of the tape winding side, second speed detecting means for detecting the rotation speed of the reel side of the tape supplying side, and first
And a speed ratio calculating means for calculating a ratio of speeds detected by the second speed detecting means, and a tape running control means for fast-forwarding or rewinding the tape at a speed different from that at the time of recording,
Cue signal recording / reproducing means for recording / reproducing a signal for cueing on the tape, storage means for storing the speed ratio output by the speed ratio calculating means, and speed ratio and storage for outputting the speed ratio calculating means. And a comparison operation device for reading and comparing the speed ratios stored in the means, and at the start of recording the program, the cue signal recording / reproducing means records a signal for cueing on the tape, The speed ratio output by the speed ratio calculation means at the position where the cue signal is recorded is stored in the storage means, and at the time of reproduction, the speed at the position where the cue signal of the program stored in the storage means is recorded. By comparing the ratio and the speed detected by the first and second speed detecting means with the speed ratio calculated by the speed ratio calculating means by the comparison calculating means, it is possible to perform the above processing up to the vicinity of the position where the cueing signal is recorded. After fast-forward or rewind the tape by-loop running control means detects the cue signal transferring the tape to the recording start position of the program by the cue signal recording and reproducing means.

[0022]

With the above structure, the recorded program can be searched automatically by a simple operation, and the complexity of recording the program is dramatically improved. Further, by using the rotation frequency of the T reel or the S reel or the ratio of the rotation frequency of the T reel and the S reel as the tape position information, even if various cassette tapes having different tape thicknesses are used, no operation is required. You can perform accurate program search without any problems.

[0023]

【Example】

(Embodiment 1) Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the construction of an embodiment of a video tape recorder of the present invention, in which a magnetic tape 2 is used.
And a rotary drum 3 for driving a rotary head (not shown) for recording / reproducing information on / from a magnetic tape 2.
An S reel 4 that sends out the magnetic tape 2 during reproduction or fast-forward, a T-reel 5 that winds the magnetic tape 2 during reproduction or fast-forward, and a supply-side reel rotation speed detector that detects the rotation speed of the S reel 4 ( Hereinafter, referred to as S reel rotation speed detector) 6, a take-up reel rotation speed detector (hereinafter referred to as T reel rotation speed detector) 7 that detects the rotation speed of the T reel 5, and a servo control. Control head 8 for recording and reproducing signals, and control head 8
A control signal recording / reproducing circuit 10 for writing and reading a cueing signal on a magnetic tape via a VTR and an FF of a VTR.
The tape drive circuit 12 for driving a capstan motor (not shown) or a reel motor (not shown) for transferring the magnetic tape 2 according to the / REW state, the reproduction state, etc. A pinch roller 18 for pressure-bonding to the capstan 17, a static random access memory (hereinafter referred to as a static type random access memory for storing index information and tape remaining amount data regarding recording at the time of information recording, and backed up by a battery (not shown) at the time of power failure. S
(Referred to as RAM) 11, key input device for timer reservation or VTR operation or remote control device 16, and SRA when necessary
An on-screen display circuit (hereinafter referred to as OSD circuit) 15 for displaying index information stored in M11, a video signal processing circuit 14, and a monitor 13.
And a microcomputer 9 for comparing and calculating the measurement results of the rotation speeds detected by the S-reel rotation speed detector 6 and the T-reel rotation speed detector 7, and controlling the above system. ing.

When the recording of the program is started with the above configuration,
First, the microcomputer 9 shown in FIG.
The magnetic tape 2 is pressure-bonded to the capstan 17, and the tape drive circuit 12 drives the capstan motor and the reel motor to drive the magnetic tape 2 at the recording speed Vt. At the same time, the S reel rotation speed detector 6 and the T reel speed detector 7 measure the rotation speeds of the S reel 4 and the T reel 5. In addition, a control signal recording / reproducing circuit 10 shown in the figure records a so-called VISS signal, which is a cueing signal obtained by duty-modulating the control signal, on the magnetic tape 2.

FIG. 3 shows the recording waveform of the control signal, the reproduction waveform and the recording format of the cueing signal for explaining the VISS search function for performing the cueing by duty-modulating the control signal. A signal whose high level (hereinafter referred to as H level) period is approximately 60% when one cycle is 100% (see FIG.
(A)) is a “0” pulse, and the H level period is approximately 27.
The 5% signal (FIG. 3 (B)) is set to "1" pulse, and the above-mentioned recording start time, that is, the beginning of the program to be recorded is shown in FIG.
A cue code as shown in (C) is recorded. Then, during the VISS search, the cue code is detected by measuring the duty of the reproduction control signal at the time of fast forward or rewind, and the mode is shifted to the reproduction mode. Then, the microcomputer 9 performs SRA on the index information regarding the information to be recorded, the tape position information at the recording start position, and the tape remaining amount information at the recording start.
Store in M11. The index information is information which can be recognized later, such as recording date, recording start / end time, tuner channel number, and genre indicating which field the program belongs to. The tape position information is for storing where on the tape the information to be recorded is recorded. For example, the rotation frequency of the T reel at the recording start position or the ratio of the rotation frequency of the S reel to the T reel. Can be considered. Here, the relationship between the T-reel rotation frequency, which is the tape position information, and the tape position will be described.

FIG. 2 is an enlarged view of the reel portion of the cassette 1. The magnetic tape 2 is pressed against the capstan 17 by the pinch roller 18 of FIG. 1 and runs at the recording speed Vt. At this time, since the T reel 5 is rotating at the angular frequency ωt and the frequency ft, the relationship between the radius Rt of the T reel and the recording speed Vt is as follows.

[0028]

[Equation 7]

Therefore, Rt is

[0030]

[Equation 8]

It becomes Rt is the tape winding radius of the T reel, and is small at the starting end and increases as approaching the ending end if the recording speed Vt is constant. That is, Rt changes depending on the tape position, and its value can be obtained by measuring and calculating the rotation frequency of the T reel by the T reel rotation speed detector 7. Therefore, if the tape speed Vt is managed under a constant condition, the rotation frequency of the T reel has tape position information.

Since the S reel 4 rotates at the angular frequency ωs and the frequency fs, the relationship between the S reel radius Rs and the recording speed Vt is as follows.

[0033]

[Equation 9]

Therefore, Rs is

[0035]

[Equation 10]

It becomes Rs is the tape winding radius of the S reel, and is large at the start end and becomes smaller as the end speed is approached, if the recording speed Vt is constant. That is, Rs changes depending on the tape position, and its value can be obtained by measuring and calculating the rotation frequency of the S reel by the S reel rotation speed detector 6. Therefore, if the tape speed Vt is managed under a certain condition, the tape speed Vt is S
The reel rotation frequency will have tape position information.

Next, the relationship between the rotational frequency ratio of the T reel 5 and the S reel 4 and the tape position will be described. The rotation frequency ratio ft / fs of the T reel and the S reel is obtained by dividing (Equation 10) by (Equation 8).

[0038]

[Equation 11]

[0039]

[Equation 12]

From the equation (12), the tape position information can be obtained by measuring the rotational speeds of the T reel and the S reel and obtaining the ratio thereof. Moreover, there is no speed variable Vt in (Equation 12). That is, no matter what speed the magnetic tape 2 is running, if the rotational frequencies of the T reel 5 and the S reel 4 can be measured, the tape position information can be obtained.

Next, a storage format for storing the above-mentioned index information and tape position information in the SRAM 11 will be described. Figure 4 shows a 16K-bit SRAM
Represents one example of a format in which 8 bits are addressed by 1 byte, and program information is stored in 16 bytes per program, and a total of 128 programs are stored. As information of each program,
1 byte for identifying the cassette, 1 byte for channel, 1 byte for date, 4 bytes for time, position information, that is, rotation of the T reel 5 or the S reel 4 when the magnetic tape 2 is run at the recording speed Vt. Frequency or T
3 bytes are secured for the rotation frequency ratio of the reel 5 and the S reel 4. In this format, for example, when 3 programs are recorded in the cassette of number 2, the SRAM 11 stores information such as A or B in FIG. FIG. 9A shows an example in which the rotational frequency of the T reel 5 when the magnetic tape 2 is running at the recording speed Vt is stored as tape position information, and F1 to F3 are the recording start positions T of three programs.
It represents the rotation frequency of the reel 5. FIG. 9B is an example in which the rotation frequency ratio of the T reel 5 and the S reel 4 is stored as tape position information, and R1 to R3 are the rotation frequency ratios of the T reel 5 and the S reel 4 at the recording start positions of each of the three programs. Represents The above operation is performed to end the recording process.

Next, the operation for searching the recorded program by the index information and the tape position information stored in the SRAM 11 will be described.

First, the microcomputer 9 is an SRAM.
The index information and the tape position information regarding the cassette of No. 2 are read from 11 and displayed on the monitor 13 by the OSD circuit 15 and the video signal processing circuit 14. Figure 5C
Is a display example thereof, 51 represents a currently selected program, and 52 is a guide display showing an operation procedure. When such a display is displayed on the monitor 13, the program to be reproduced is determined using the key input device 16. FIG. 6 is a diagram showing a key layout of the key input device 16, which is a list key 6
Pressing 1 produces the display of FIG. 5C.

Next, when a program is selected by the up key 62 or the down key 64 and the execute key 63 is pressed, the program search is started. FIG. 7 is a diagram showing the magnetic tape 2 in the horizontal direction. 71 is the track of the tape position at the time of program search, 72 is the magnetic tape, A is the current tape position, and B is the recording start position of the program. The signal is recorded. When the microcomputer 9 detects that the execute key 63 in FIG. 6 has been pressed, the tape position information of the selected program is SR
It is read from AM11 and compared with the tape position information of A. At this time, whether the rotational frequency of the T reel 5 or the rotational frequency ratio of the T reel 5 and the S reel 4 is used as the tape position information, as is clear from (Equation 8) and (Equation 10), the tape position of A When the information is larger than the value read from the SRAM 11, the position of B is on the terminal side of the position of A, and when the information is small, it is on the starting side. Therefore, the microcomputer 9 controls the tape drive circuit 12 based on the comparison calculation result, and sends the magnetic tape 2 to the vicinity of the position B. Further, the method of transferring the magnetic tape 2 differs depending on the tape position information stored in the SRAM 11.

First, a method in the case where the rotation frequency of the T reel 5 or the S reel 4 is stored in the SRAM 11 as the tape position information will be described. (Equation 8) and (Equation 1)
As is clear from 0), the rotation frequency of the reel changes depending on the speed Vt of the magnetic tape 2. Since the reel rotation frequency at the recording speed is stored in the SRAM 11, the speed of the magnetic tape 2 is made equal to the recording speed, or the magnetic tape 2 is made to run while detecting the speed Vt, and during that time, the T reel rotation speed. It is necessary to convert the T-reel rotation speed output from the detector 7 into a recording speed according to Vt. For this reason, when it is determined where the position B is relative to the position A, the microcomputer 9 presses the magnetic tape 2 onto the capstan 17 by the pinch roller 18 and controls the tape drive circuit 12 to run the magnetic tape 2. Let

According to this method, when the tape drive circuit 12 controls the speed of the capstan motor, the magnetic tape 2 is pressure-bonded to the capstan 17, so that the speed can be controlled. For example, when the magnetic tape 2 is run at the recording speed, the output of the T-reel rotation speed detector 7 is compared with the tape position information of the position B stored in the SRAM 11 by the microcomputer 9 and the tape B It can be transferred to the vicinity of the position. For the purpose of transferring the tape in a shorter time, for example, when the capstan motor is subjected to a speed control of 7 times the recording speed, the output of the T reel rotation speed detector 7 is divided by 7 by the microcomputer 9. It is possible to transfer the tape to the vicinity of the position B while comparing the calculated value with the tape position information of the position B stored in the SRAM 11.

Next, the T reel 5 and S are used as tape position information.
A method of storing the rotation frequency ratio of the reel 4 in the SRAM 11 will be described. As is clear from (Equation 12), the tape position information can be obtained regardless of the running speed Vt of the magnetic tape 2 according to the rotation frequency ratio. Therefore,
When the microcomputer 9 knows where the B position is relative to the A position, the magnetic tape 2 is run by the tape drive circuit 12, and the T reel rotation speed detector 7 and the S reel rotation speed detector 6 are operated during this time. Calculate the ratio of outputs,
The tape is transferred to the vicinity of the position B while comparing the rotation frequency ratios of the T reel 5 and the S reel 4 at the position B stored in the SRAM 11. When the magnetic tape 2 is transferred by the above method, the microcomputer 9 passes through the recording start position B of the program and temporarily stops at the position C, as shown at 71 in FIG. This is how the tape position of the magnetic tape 2 during running is determined by the T reel rotation speed detector 7 and the S reel.
Even if the tape position information obtained from the reel rotation speed detector 6 is monitored, the traveling speed of the magnetic tape 2 at the position B differs depending on the position A at the start of traveling, or the magnetic tape 2 is stopped from the traveling state. This is because it is difficult to stop the magnetic tape 2 in front of B or at the position of B due to variations in the braking force of the brake (not shown). Therefore, the microcomputer 9 transfers the magnetic tape 2 to the position C, which has surely passed the position B, and then runs the magnetic tape in the opposite direction.

Next, the microcomputer 9 causes the control signal recording / reproducing device 10 to perform the above-described VISS signal detection operation, and the VIS recorded at the position B.
When the S signal is detected, the magnetic tape 2 is put into a reproducing state and a series of search operations is completed.

[0049]

As described above, the video tape recorder of the present invention makes it possible to automatically search for recorded programs, which has hitherto been the biggest problem of VTRs, by a simple operation, and to record programs. The complexity is dramatically improved. Further, by using the rotation frequency of the T reel or the S reel or the ratio of the rotation frequencies of the T reel and the S reel as the tape position information, even if various cassette tapes having different tape thicknesses are used, nothing is operated. Without this, an accurate program search can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a video tape recorder of the present invention.

FIG. 2 is an enlarged view of a cassette portion of the same embodiment.

FIG. 3 is a waveform diagram showing a recording format of a cue signal of the embodiment.

FIG. 4 is a schematic diagram showing a storage format of the SRAM of the same embodiment.

FIG. 5 is a schematic diagram showing a storage state after recording of a program of the SRAM of the embodiment and a monitor display example thereof.

FIG. 6 is a diagram showing a key arrangement of the key input device of the embodiment.

FIG. 7 is a schematic diagram showing a tape running locus during a program search operation of the embodiment.

[Explanation of symbols]

 1 cassette 2 magnetic tape 3 rotating drum 4 supply side reel 5 winding side reel 6 supply side reel rotation speed detector 7 winding side reel rotation speed detector 8 control head 10 control signal recording / reproducing device 11 SRAM memory 12 tape drive circuit 13 monitor 14 video signal processing circuit 15 on-screen display circuit 16 key input device

Claims (2)

[Claims] 1. A video tape recorder having a recording / playback function, comprising: speed detection means for detecting the rotation speed of a reel stand on the winding side of the tape; and fast-forwarding or winding of the tape at a speed different from that during recording. A tape running control means for returning the tape, a computing means for converting the rotational speed of the take-up reel stand detected by the speed detecting means from the tape running speed during the fast forward or rewind into the rotational speed during recording, and the tape A cue signal recording / reproducing means for recording / reproducing a signal for cueing above, a storage means for storing the rotation speed of the winding side reel stand detected by the speed detecting means at the start of recording a program, The comparison calculation device for reading and comparing the converted value output by the calculation means and the speed stored in the storage means is provided, and when the recording of the program is started, the cue signal recording / reproducing means is provided. Therefore, a signal for cueing is recorded on the tape, and the rotation speed of the winding-side reel stand at the position where the cueing signal detected by the speed detecting means is recorded is stored in the storage means, and at the time of reproduction. The rotation speed of the take-up reel stand at the position where the cue signal of the program stored in the storage means is recorded and the speed detected by the speed detection means by the calculation means are converted into the rotation during recording. By comparing the speeds by the comparison calculation means, the tape running control means fast forwards or rewinds the tape to the vicinity of the position where the cueing signal is recorded, and then the cueing signal recording / reproducing means cues. A video tape recorder, which detects a signal and transfers the tape to a recording start position of a program. 2. A video tape recorder having a recording / playback function, comprising: first speed detecting means for detecting a rotation speed of a reel base of a tape winding side; and rotation speed of a reel base of a tape supplying side. Second speed detecting means for detecting
And a speed ratio calculating means for calculating a ratio of speeds detected by the second speed detecting means, and a tape running control means for fast-forwarding or rewinding the tape at a speed different from that at the time of recording,
Cue signal recording / reproducing means for recording / reproducing a signal for cueing on the tape, storage means for storing the speed ratio output by the speed ratio calculating means, and speed ratio output by the speed ratio calculating means And a comparison operation device for reading and comparing the speed ratio stored in the storage means,
At the start of recording a program, the cue signal recording / reproducing means records a signal for cueing on the tape, and the speed ratio output by the speed ratio calculating means at the position where the cue signal is recorded. At the time of reproduction, the speed ratio stored at the position where the cue signal of the program stored in the storage unit is recorded and the speed detected by the first and second speed detection units are set to the speed. By comparing the speed ratio calculated by the ratio calculation means by the comparison calculation means, the tape running control means fast forwards or rewinds the tape to the vicinity of the position where the cueing signal is recorded, and then the head. Detecting the cueing signal by the output signal recording / reproducing means. The tape running control means fast-forwards or winds the tape until the difference between the two speed ratios is within the set range. After the video tape recorder, characterized in that to transport the tape by detecting the beginning signals to the recording start position of the program by the cue signal recording and reproduction means.