JPH0746493B2 - Program cue signal recording device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a video tape recorder (hereinafter referred to as VTR).
The present invention relates to a program cue signal recording device that can be used for magnetic recording / reproducing devices such as.

2. Description of the Related Art In a VTR or the like, searching for the first tape position where the program to be played is recorded is called cueing.

Conventionally, the program cueing method in the VTR is that when recording a program, a 30 Hz signal is recorded for 1 second at the beginning of the program as a cueing signal with a full width erasing head, and a cueing signal to be reproduced at the time of cueing. You are searching for the beginning of the desired program by counting the number of.

An example of the conventional program cueing method described above will be described below with reference to the drawings.

FIG. 7 is a schematic plan view of the tape running system during recording running, and FIG.
The figure is a schematic plan view of the tape running system during fast-forwarding and rewinding. 1 is a cassette case, 2 is a take-up reel, 3 is a supply reel, 4,7,10,11,13,14,16,17,18. , 20 are posts, 5 is a capstan, 6 is a pinch roller, 8 is an AC head, 9 is an impedance roller, 12 is a cylinder, 15 is a full width erasing head, 19 is a tape, and 21 is a cue signal reproducing head. VT
When R is set to the recording mode, the tape running system shown in FIG. 7 is obtained. When the recording of the program is started, the full-width erasing head 15 records a 30 Hz signal at the beginning of the program on the tape 19 as a cue signal for 1 second. The full-width erasing head 15 has a function of erasing a previously recorded signal by recording a signal of several tens KHz or more in a normal recording mode on the tape, but as described above in the head portion of the program. It also has the role of recording the cue signal. When the program cue mode is set, the tape running system shown in FIG. 8 is set to the fast forward or rewind mode, and the cue signal recorded on the tape 19 is detected by the cue signal reproducing head 21. The tape running system shown in FIG. 8 is in a state in which the tape 19 is pulled out partway by the post 20 (hereinafter, this state will be referred to as a sub-loading state), and the tape 19 has the AC head 8 and the cue reproducing head 21. The fast-forwarding and rewinding mode is performed in the state of contact with the tape. However, in the fast-forwarding and rewinding mode, the sub-loading state is not required as long as the cue reproducing head 21 is in contact with the tape 19.

FIG. 9 is a block diagram of a main part showing a configuration of an example of a conventional program cue signal recording device, and 15 is a full width erasing head,
Reference numeral 19 is a tape, 41 is a running control means for controlling the running of the tape 19, 42 is a cue signal producing means, and 43 is an erasing signal producing means.

The operation of the conventional program cue signal recording apparatus configured as described above will be described below.

First, when the VTR is set to the recording mode, the tape 19 becomes the tape running system shown in FIG. 7 by the running control means 41. When the signal for indicating that the tape running system shown in FIG. 7 has been entered from the running control means 41, the cue signal creating means 42 generates a 30 Hz signal as a cue signal for only one second, and the erase signal creating means. The 43 generates a signal of several tens KHz or more as an erase signal while the VTR is in the recording mode. The cue signal and the erase signal are recorded on the tape 19 via the full-width erase head 15. By this operation, a 30 Hz signal is recorded at the beginning of each program on the tape 19 as a cue signal for 1 second.

FIG. 10 is a block diagram of a main part showing an example of the configuration of a conventional program cue signal reproducing device. 2 is a take-up reel, 3 is a supply reel, and 19 is a program cue signal recorded at the beginning of each program. The tape 21, which is a cue signal reproducing head, is attached at the position shown in FIGS. 7 and 8. 31 is a cue signal detecting means for detecting a cue signal from the signal reproduced by the cue signal reproducing head 21, 32 is a take-up reel motor,
33 is a supply reel motor, 34 is a switch (hereinafter referred to as SW) for setting a program number to be cueed, 35a is a SW for starting cueing by fast forward, 35b is a SW for starting cueing by rewinding, 36 is SW34 To set the program number you want to cue, and then cue mode setting means to start cueing when SW35a or SW35b is pressed, 37 is the program number you want to cue out set by cueing mode setting means 36 When a signal indicating the start of cueing is received from the cueing mode setting means 36, the tape 38 is fast forwarded or rewound and the cueing signal detected by the cueing signal detecting means 31 is counted and cueing is performed. Traveling control means for searching for a program to be searched for which is set by the mode setting means 36, 39 is a take-up reel motor drive means, and 40 is a supply reel motor drive means.

The operation of the conventional program cue signal reproducing device configured as described above will be described below.

First, if you want to show the beginning of a program, enter the program number with SW34. At this time, since the present embodiment is an example of the relative address cueing method, the program number is designated such as the program one before or the program two after based on the program at the current position. The cue mode setting means 36 sets the relative number of the program to be cueed by the input from the SW 34, and displays the number on the display unit 37. After setting the number, the cue mode setting means 36 sends a signal for starting the cue in the fast-forward mode when the SW 35a is pressed and a signal for starting the cue in the rewind mode when the SW 35b is pressed to the traveling control means 38. It also sends the set number information to the traveling control means 38. The traveling control means 38 follows the take-up reel motor drive means 39 and the supply reel motor drive means 40 according to the signal indicating the fast forward or the rewind sent from the cueing mode setting means 36, and the take-up reel motor 32 and the supply reel motor. 33 is driven to fast forward or rewind the tape 19, and the cue signal detection means
The number of the cueing signals recorded on the tape 19 detected by 31 is counted, and when the number information sent from the cueing mode setting means 36 matches the count number, the search for the beginning of the desired program is completed.

Problems to be Solved by the Invention However, in the above-mentioned configuration, since the relative program number is input, when setting the number, the program number at the current tape position and the number of the program to be cueed are changed. It must be calculated and set by the user each time, and the program number setting at the time of cueing in the rewind mode is the cueing signal before the current tape position is the cueing signal of the current program. Therefore, when it is desired to find the beginning of the previous program, it is necessary to set the preceding cue signal, which is very troublesome for setting the program number. Further, since the conventional cueing signal is recorded over the entire width of the tape by the full width erasing head, when the portion where the cueing signal is recorded is reproduced, band-shaped noise is generated on the screen, which adversely affects the video signal. Will end up.

Further, the above-mentioned conventional program cue signal reproducing device has explained the relative address cueing method, but if the conventional cueing signal is used to perform absolute address cueing, the current address when the tape is first inserted In order to know what the program number is, there is no other way than to find out how many cue signals are recorded at the tape position before the current tape position, so at the beginning of the first program, up to the beginning of the tape Since it is necessary to rewind and count the cueing signal from the beginning of the tape, it takes a very long time to search for the desired program, and the cueing is performed in a mode in which the tape running speed is slow such as slow playback and frame advance playback. Since the cue signal must be counted even when passing the position where the signal is recorded, a magnetic flux response type head is required for the cue signal reproducing head.
Even if the cue signal recorded for a second is reproduced many times with a very long time interval, or when the tape running direction changes while the cue signal is being reproduced, the current position However, there is a problem in that a very complicated process must be performed to realize the absolute address cueing using the conventional cueing signal.

In view of the above problems, the present invention simplifies the duty change of a control signal and a signal group in which the program number itself is data-recorded by duty-modulating the signal by using the control head instead of recording the cue signal by the full-width erasing head. By recording a signal group that can be configured by various circuits as a cueing signal, a program cueing signal recording device having a simple structure, a short program search time, and no influence on a video signal is provided.

Means for Solving the Problems In order to solve the above problems, the program cue signal recording apparatus of the present invention is a video tape recorder having a control track for tracking control, and a recording medium,
Running control means for controlling the running of the recording medium, a head for recording a control signal on a control track of the recording medium, a program number setting means for setting a program number, and a binary number of information 0 and information 1. And a program number set by the program number setting means and a header in which at least one bit of the information 0 signal is added before and after the signal 1 (where 1 ≧ 5) bits of the information 1 And a program number code that is a BCD code of m (where m ≧ 1) digits are repeated n (where n ≧ 1) times and information 0 is k (where k).
≧ 1) a program cueing signal coding means for coding a combination of a second code signal group of bits as a cueing signal, and the recording medium recorded on the head when the recording medium is running in the recording mode by the running means. When outputting the signal, the cueing signal coded by the program cueing signal coding means is used for the duty of the output signal, that is, the tracking control when the information 0 is sequentially from the most significant bit or the least significant bit. The pulse phase difference of the pulse having the opposite polarity to the pulse is modulated to the first phase difference, and when the information 1 is output, the duty of the output signal is modulated to the second phase difference and output.
In addition, in the recording mode other than the recording of the cueing signal, the output signal has a duty ratio of the output signal, and a recording signal generating means for outputting a signal other than the first phase difference.

With the above-described structure, the present invention uses the first code signal group in which the program number itself is data-recorded, at the time of the absolute address program cue, and the second code having a different signal duty from that at the time of normal recording. Cue for the signal group to stop at each station (search for a cue signal one before or after the current tape position to play or stop the VTR)
Or, when the relative program cue is used, when the absolute address program cue is performed, the number of the cue signal is not counted as in the conventional case, but it is played with the set program number to be cueed. Since the program number can be searched by directly comparing the program number in the cue signal, it is possible to cue the program in a short time because there is no malfunction and it is not necessary to return to the beginning of the tape with a simple structure. , Or at the start of a relative address program, the difference in signal duty can be discriminated by a simple integrating circuit composed of a resistor and a capacitor, resulting in a very simple configuration. Further, since the cue signal is generated by changing the duty of the control pulse, the adverse effect on the video signal is completely eliminated.

Example Hereinafter, a program cue signal recording apparatus according to an example of the present invention will be described with reference to the drawings.

First, the cue signal handled in this embodiment will be described. In VTR, control pulses are recorded on tape to control the capstan motor and cylinder motor so that the video signal during playback is not disturbed when recording a program.
The control pulse is recorded on the N-pole and S-pole saturated recording in one cycle of 33.3 msec, and the positive edge of the control pulse is used for control of each motor during reproduction, and the negative edge is independent of control of each motor. ing. That is, no matter what value the duty of the control pulse during recording is, it is irrelevant to the basic operation of the VTR. In the present embodiment, utilizing this fact, the duty of the control pulse is modulated to produce the cue signal.

FIG. 2 is a diagram showing the waveform of the control pulse according to the embodiment of the present invention. FIG. 2A shows the waveform of the control pulse.
The figure (b) shows the positive edge waveform of the control pulse, the figure (c) shows the waveform of the negative edge of the control pulse, and the figure (d) shows the flip-flop set at the positive edge of the control pulse and the flip-flop at the negative edge. 3 is a waveform showing control data created by resetting. Second
As shown in the figure, the control pulse duty is 50%
If it exceeds 50%, the information is 1, and if it is less than 50%, the information is 0.

FIG. 3 is a diagram showing a code of a cue signal in the embodiment of the present invention, which is composed of a signal group of a control pulse showing 1 information and a control pulse showing 0 information shown in FIG. There is. In FIG. 3, (A) is a block code, (B) is a head code, (C) is a program number code, (D) is an absolute address cue signal, and (E) is (E). ) Is a cue signal for stopping each station, and FIG. Block code (A) is
A program number code (C) made of a head code (B) recorded as 0111110 and a two-digit binary coded decimal (abbreviated as BCD code below) and indicating the number of the program from the beginning Composed of and. The reason why the head code (B) is 0111110 is that in a multi-digit BCD code, 1 can be entered up to 4 times consecutively between 0s (for example, if decimal 79 is expressed by BCD code, 01111001).
This is because no matter which position on the tape is run in the forward direction or the reverse direction, if 0111111 is detected, it can be immediately recognized as the head code. This block code (A) is repeated three times to find the absolute address cue signal (D), and a combination of a station stop cue signal (E) in which a control pulse indicating information of 0 continues 10 times. It is recorded as a cue signal (F), and thereafter, a control pulse indicating information 1 is recorded. In the present embodiment, the head code (B) is formed such that 1's continue 5 times in succession, but it may be any number of times 5 or more, and the number of 0's added before and after the continuous 1's code is also once. Any number of times is acceptable as long as it is above. The block code (A) may be recorded any number of times instead of three times, and the program number code (C) may be any number of BCD codes instead of two. Further, the cue signal (E) for stopping at each station is not in the form of 0 consecutive 10 times, and may be any bit as long as it can be detected by the integrating circuit used in the program cue signal reproducing method of each station stopping method of the present invention described later. . In addition, when the head code (B) is added once at the end of the absolute address cue signal (D),
By detecting the head code (B) added when the tape is run in the reverse direction and the cueing signal is detected, the last recorded program number code can be made effective data.

FIG. 1 is a block diagram of essential parts showing a configuration of a program cue signal recording apparatus according to an embodiment of the present invention. In the figure, 8
Is an AC head for recording control pulses, 19 is a tape, and 60 is a tape for setting the mode of the entire VTR (not shown)
Driving control means for controlling the driving of 9 and generating control pulses, 61 is a SW for setting the number of the program to be recorded, 62 is a SW
Program number setting means for inputting 61 to set the program number,
63 is the third from the program number set by the program number setting means 62.
Program cueing signal coding means for generating a cueing signal code shown in the figure, and 64 is a program cueing signal coding means when a signal indicating that the recording mode has been entered from the running control means 60.
Reference numeral 65 is a recording signal generating means for modulating the duty of the control pulse input from the traveling control means 60 according to the cueing signal generated, and 65 is a control pulse driver. Further, 66 is a microcomputer which internally has a program number setting means 62 and a program cue signal coding means.
It has 63 and a recording signal creating means 64.

Next, the operation of this embodiment will be described. FIG. 4 is a flow chart showing a part of the processing operation of the microcomputer 66. Step 101 and step 102 are the program number creating means 62, and when the SW 61 is pressed, the program number is set. When the VTR is set to the recording mode after the program number is set, the information is notified to the microcomputer 66 from the running control means 60, passes through the step 103, and is set in the step 102 by the processing of the program cueing signal coding means 63 in the step 104. It is encoded into the cue signal shown in FIG. 3 on the basis of the broadcast program number. Recording signal generation means 6 from step 105 onward
In the processing of 4, if the rising edge of the control pulse input from the traveling control means 60 is detected in step 105, step 10
The control pulse output is set to H level at 6 and the control pulse is recorded on the tape 19 via the driver 65 and the AC head 8. In the processing for setting the duty of the control pulse to be recorded in steps 107 to 113, the H level is less than 50% when the information is 0 according to the code of the cue signal shown in FIG. The internal timer of the microcomputer 66 is used so that the H level will exceed 50%. During the recording mode in step 114, recording of the control pulse is repeated, and when the recording mode is stopped, the process ends.

A method of cuing a program using the cuing signal recorded as described above will be described below.

FIG. 5 is a principal block diagram showing an example of an absolute address system program cue signal reproducing apparatus which is effective in combination with the present invention. In the figure, 2 is a take-up reel, 3 is a supply reel, 8 is an AC head mounted at the position shown in FIGS. 7 and 8, and 19 is the aforementioned cue signal recorded at the beginning of each program. Tape 32, take-up reel motor, 33 supply reel motor, 39 take-up reel motor drive means, 40
Is a supply reel motor driving means, 51 is a program number detecting means for detecting a program number from a control pulse reproduced by the AC head 8, 52 is a SW for setting a program number to be cueed,
53 is SW for starting cue, 54 is SW52 and SW53 is input to set the program number you want to cue, set the program number you want to cue and start cue mode setting means, 55 is the cue A display unit for displaying the program number to be issued and the current program number, 56 is a running control means for fast-forwarding or rewinding the tape 19 according to a signal from the cue mode setting means 54 and a signal from the program number detecting means 51, and 57 is It is a tape start sensor.

The operation of the absolute address type program cue signal reproducing apparatus configured as described above will be described below.

If you want to show the beginning of a program, use SW52 to specify the program number. At this time, since the absolute address is shown, the program number at the current tape position is irrelevant, and the number indicating the program number from the beginning may be directly input. The cue mode setting means 54 sets the number according to the input of the SW52, and when the SW53 is pressed after the setting, the cue mode is set, and the traveling control means
A signal indicating the program number information set in 56 and the cue mode is sent. The set number is displayed on the display unit 55. When the traveling control means 56 receives the signal indicating the cue mode, the traveling control means 56 compares the set program number information with the detected program number information sent from the program number detecting means 51, and the winding reel motor driving means. A command is sent to 39 and the supply reel motor drive means 40 to fast forward or rewind the tape 19. At the beginning of the first cueing, the program number detecting means
Since there is no program number information detected from 51, the tape is rewound, and when the tape start end sensor 57 detects the tape start end, the tape forward speed is set to search the cue signal recorded on the tape. When the program number is detected by the program number detecting means 51, if the detected program number is smaller than the set program number, fast forward, and if it is larger, rewind,
When it matches, the cue is completed, and the VTR is stopped or put in the play mode. In addition, the detected program number information is displayed on the display unit 55 via the traveling control unit 56 in place of the current program number. If the program number in the rewinding direction is detected, it means that the program number has passed through the program of that number and becomes the previous program, so the detected number is minus 1. It means to let. The program number detecting means 51 is an AC head 8 in the tape running system shown in FIG.
The duty of the control pulse reproduced by is determined, the cueing signal is detected, and the program number code is read. The method of determining the duty of the control pulse is that the tape speed during fast forward / rewind is not constant, but the tape length during one cycle of the control pulse is extremely short, so the tape speed during one cycle can be made almost constant. This is a method of detecting the times of the H level period and the L level period of the signal shown in FIG. 2D and reading whether the information of 1 is 0 from the two results. Since the tape running direction is opposite between the fast-forwarding and the rewinding, the method of discriminating the information of 1 and the information of 0 is different, but the method is determined by the signal indicating the tape traveling direction sent from the traveling control means 56. Is changing. The method of detecting the program number from the information read from the control duty is that the cue signal shown in FIG. 3 is recorded at the beginning of the program. ), And the subsequent 8 bits are detected as the program number code (C). In this case also, the head code (B) is detected at the same time during fast forward / rewind, but the program number code (C) is detected from A ₇ to A ₀ during fast forward and A during rewind. Since it goes from ₀ to A ₇ , correct it and detect the program number. If the program number code has the same value twice in a row so as not to be detected by mistake, the code may be validated. Incidentally, the program number detecting means 51, the cue mode setting means 54, the traveling control means 56
If it is configured by using a one-chip microcomputer, the configuration is very simple and each processing can be made very easily.

FIG. 6 is a principal block diagram showing an example of a program cue signal reproducing apparatus of each station stop system which is effective in combination with the present invention. In the figure, 2 is a take-up reel, 3 is a supply reel, 8 is an AC head, 19 is a tape, 32 is a take-up reel motor, 33 is a supply reel motor, 39 is a take-up reel motor driving means, and 40 is a supply reel. The motor driving means has the same structure as that shown in FIG. Reference numeral 70 is an amplification circuit for amplifying the control pulse reproduced by the AC head 8. Reference numeral 71 is a waveform shaping circuit for producing a control data waveform shown in FIG. 2D from the control pulse amplified by the amplification circuit 70. Is composed of two comparators for detecting the positive edge and the negative edge of and an RS flip-flop, and 72 is an integrating circuit for integrating the waveform made by the waveform shaping circuit 71, which is composed of, for example, a resistor and a capacitor, and 73
Is a reference voltage generating circuit, which is composed of, for example, two resistance division voltages, and 74 is the output voltage of the integrating circuit 72 and the reference voltage generating circuit 73.
Comparator circuit to compare the output voltage of the, 75 is a SW that starts the cue in the forward direction of the tape running, 76 is a SW that starts the cue in the reverse direction of the tape running, 77 is the tape when SW75 or SW76 is input It is a traveling control means for fast-forwarding or rewinding 19.

The operation of each station stop system program cue signal reproducing device configured as described above will be described below.

First, if you want to show the beginning of the program at the current tape position, SW
Press 76 to start cueing in the rewind direction. If you want to find the beginning of the next program at the current tape position, press SW75 to start the beginning of the fast forward direction. Travel control means 77
When SW75 or SW76 is pressed, the tape 19 is brought into the fast-forwarding or rewinding state via the take-up reel motor drive means 39, the supply reel motor drive means 40, the take-up reel motor 32, and the supply reel motor 33. When the tape 19 is fast-forwarded or rewound, the control pulse recorded on the tape 19 is reproduced by the AC head 8 and the amplification circuit 7
A voltage proportional to the duty of the control pulse is input to the comparison circuit 74 via 0, the waveform shaping circuit 71, and the integration circuit 72. The output voltage of the integrating circuit 72 becomes a high voltage when fast-forwarding or rewinding the tape position where information of 1, that is, a state where the duty of the control pulse exceeds 50% is continuously recorded, and becomes 0, The voltage is low when fast-forwarding or rewinding the tape position where information is continuous. If the output voltage of the reference voltage generating circuit 73 is made equal to the output voltage of the integrating circuit 72 when the duty of the control pulse is just 50%, the tape position where 1 information is continuous from the output signal of the comparing circuit 74. It can be detected that the information from 0 to 0 has moved to the continuous tape position. As a result, the cue signal (E) for stopping each station shown in FIG. 3 can be detected, and when the comparison circuit 74 detects this signal, the running control means 77 stops or plays the tape 19 and finishes the cue of the program. To do. The station stop cue signal (E) shown in FIG. 3 has a form in which 0 information is continuous for 10 bits, but what if the comparator circuit 74 changes from 1 information to 0 information? It may be a bit. Comparator circuit 74
If the configuration is such that the information of 0 is 1 bit is detected, the absolute address cueing signal (D) shown in FIG. 3 is detected, but this absolute address cueing signal (D) is detected. Since the recorded tape position and the tape position at the beginning of the real program are short in distance, there is no problem. When the absolute address cue signal (D) is formed by the block code (A) that is repeated tens of times, the number of consecutive 0s in the absolute address cue signal (D) is limited. Therefore, the number of bits of the cue signal (E) for stopping each station is increased to give a difference, and the comparison circuit 74
May be configured to detect only the cue signal (E) for stopping each station.

The relative address type program cue signal reproducing device is provided with a program number setting means and a means for counting the number of station stop cue signals (E) in the station ceasing program cue signal reproducing device shown in FIG. Since it may be provided, description thereof is omitted here.

As described above, the cue signal is made into two signal groups, a cue signal group for stopping at each station and a cue signal group for absolute addresses. Can be searched, and at the beginning of the program at each station, it can be constructed with a very simple circuit without using a microcomputer.

EFFECTS OF THE INVENTION As described above, according to the present invention, since the program cueing is performed by using the duty of the control pulse of the VTR, the video signal is not adversely affected, and the recording and reproduction of the cueing signal can be performed. Therefore, it can be configured without adding a special dedicated head. In addition, since a signal that is a combination of an absolute address cue signal that directly records the program number and a station cue signal that can detect the duty change of the control pulse with an integrator circuit with a simple configuration is used as the cue signal,
When using the absolute address method to cue a program, it is easy to set the desired program number, and it is not necessary to go to the beginning of the tape and count the cue signal without malfunctioning. When performing the program cueing at each station stop system, it is only necessary to detect the duty change of the control pulse without reading the program number recorded in the data, so it is possible to configure with a simple circuit. You can

[Brief description of drawings]

FIG. 1 is a block diagram of a main part showing a configuration of a program cue signal recording apparatus according to an embodiment of the present invention, FIG. 2 is a waveform diagram of control pulses according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a code configuration diagram of a cue signal handled in the example, FIG. 4 is a flowchart showing a part of the processing operation of the microcomputer, and FIG. 5 is an absolute address type program cue signal reproducing apparatus which is effective in combination with the present invention. FIG. 6 is a block diagram of an essential part showing an example of a program cue signal reproducing device of each station stop system which is effective in combination with the present invention, and FIG. 7 is a tape during recording running. FIG. 8 is a schematic plan view of the running system, FIG. 8 is a schematic plan view of the tape running system at the time of fast-forwarding and rewinding, FIG. 9 is a block diagram of essential parts showing an example of a conventional program cueing signal recording device, and FIG. Example of conventional program cue signal reproducing device It is a principal block diagram showing. 60 …… Run control means, 61 …… SW, 62 …… Program number setting means, 63 …… Program cue signal coding means, 64 …… Record signal creating means, 65 …… Driver, 66 …… Microcomputer, 8 ... AC head, 19 ... tape, 51 ... program number detecting means, 52, 53 ... SW, 54 ... cue mode setting means, 55 ... display section, 56 ... running control means, 70 ... … Amplification circuit, 71 …… Wave shaping circuit, 72 …… Integration circuit, 73 …… Reference voltage generation circuit, 74 …… Comparison circuit, 75,76 …… SW, 77 ……
Driving control means.

Claims (2)

[Claims] 1. A running control means for controlling running of a recording medium in a video tape recorder having a control track for tracking control, and a head for recording a control signal on the control track of the recording medium.
A program number setting means for setting a program number, and a signal l of information 1 which is formed by a binary number of information 0 and information 1.
A header having a structure in which a signal of information 0 is added at least 1 bit before and after (l ≧ 5) bits and a program number set by the program number setting means is m (where m ≧ 1) digits And a second code signal group in which information 0 is k (where k ≧ 1) bits and information 0 is repeated by n (where n ≧ 1) times. A program cueing signal coding means for coding the synthesized one as a cueing signal, and a means for outputting a recording signal to the head when the recording medium is running in a recording mode by the running means, and the program head When the cueing signal coded by the cueing signal coding means is sequentially 0 from the most significant bit or the least significant bit, the duty of the output signal, that is, the pattern used for tracking control. The phase difference of the pulse having a polarity opposite to that of the pulse is modulated to the first phase difference, and when the information is 1, the duty of the output signal is modulated to the second phase difference and output, and the cueing signal is recorded. In a recording mode other than the above, the recording start signal recording device is provided with recording signal generating means for outputting a signal whose output signal has a duty other than the first phase difference. 2. The program cue signal coding means generates a signal group to which the header is added after the first code signal group repeats the header and the program number code n (where n ≧ 1) times. The program cue signal recording device according to claim (1), characterized in that it is configured to: