JPS62179285A - Recorder - Google Patents

Abstract

PURPOSE:To prevent a recording speed incapable of operating from being set by controlling so as to make the set range of the recording speed in the second recording mode smaller than the set range of the recording speed of the first recording mode. CONSTITUTION:There is provided a means for controlling the set range of the recording speed in the second recording mode so as to be smaller than the set range of the recording speed in the first recording mode. For instance, on a field recording mode, the recording speed for two pictures, five pictures and ten pictures for the single can be set every second and on a frame recording mode, the two pictures and five pictures for the single can be set every second and the setting of the recording speed for the ten pictures every second incapable of operating is controlled. Thereby, during the frame recording mode, the recording speed for the ten pictures every second is not erroneously set. Further, since the set range is displayed on a two digit seven segment LED, so that the user can easily use.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a recording device, and particularly to a recording device that can change the recording speed.

<Prior art> As a conventional recording device that can change the recording speed, for example, S
There was a recording device called a v-floppy that recorded still images on a magnetic sheet. In such a recording device, the number of still images that can be recorded per vehicle position per second can be set to, for example, 2, 5, or 10 frames.

<Problems to be Solved by the Invention> By the way, in such a recording device, there is a frame recording mode in which a frame video signal consisting of two interlaced fields is recorded, and a field recording mode in which a field video signal consisting of only one field is recorded. When both can be selected, the setting range of recording speed is different in field recording mode and frame recording mode, so even if the recording speed that can be recorded is set in field recording mode, it is not possible in frame recording mode. There is a problem in that recording may not be possible at this recording speed. Such a problem can generally occur in a recording device that has a first SJ mode and a second recording mode in which recording amounts are different when recording information as described above, and can change the recording speed. This was a problem.

<Means for Solving the Problems> The present invention aims to solve the problems of the conventional art, and includes a first recording mode for recording a predetermined amount of information, and a first recording mode for recording more information than the first recording mode. A recording apparatus having a second recording mode for recording, comprising: a control means for repeatedly performing recording in the first recording mode or the second recording mode at a predetermined recording speed; and a means for setting the recording speed. , means for controlling the setting range of the recording speed in the second recording mode to be smaller than the setting range of the recording speed in the first recording mode.

<Function> The recording speed setting range is appropriately restricted according to the recording mode.

<Example> The present invention will be described in detail below with reference to the drawings. In the example of the present invention described below, a still image video signal is recorded on a disk-shaped recording medium, specifically, a disk-shaped magnetic sheet. A recording and reproducing apparatus that records or reproduces a recorded still image video signal will be described.

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

In FIG. 1, reference numeral 1 denotes a magnetic sheet on which recording/reproducing tracks, track pitches, and track positions for video signals are predetermined, and the tracks are formed in concentric circles, and one field of video signals is stored in one track. In the case of a frame video signal, one field of video signal is recorded on each of two adjacent tracks to form a frame video signal. 2 is a DC for rotating the magnetic sheet l at a constant speed.
Motors 3-1 and 3-2 are in-line heads that access two adjacent tracks, 3-1 accessing the outer circumferential side and 3-2 accessing the inner circumferential side. 4 is a magnetic head 3-
1.3-2 is a magnetic head moving mechanism that moves the magnetic head 3-2 to access the track formed on the magnetic sheet 1, and 5 is a magnetic head moving mechanism 4 that moves the magnetic head 3-2 to the innermost track on the magnetic sheet l. 6 is a magnetic head 3-1.3-2, which switches its state from off to on when accessed, and outputs an L level signal to a microcomputer (hereinafter referred to as CPU) 40, which will be described later. 7 is a level detector for detecting the average value of the output signal from the reproduction amplifier 6; 8 is a level detector 8 whose output is set by a reference voltage source (not shown); 9 is a demodulation circuit that demodulates the output signal of the reproduction amplifier 6; 10 is a demodulation circuit that demodulates the output signal of the reproducing amplifier 6; and 10, the output signal of the demodulation circuit 9 is 11 is a horizontal synchronizing signal Hs y from the output of the demodulation circuit 9.
nc, a synchronization signal separation circuit that separates synchronization signals such as the vertical synchronization signal Vsync;
This is a data demodulator that detects a predetermined data signal from the output of and demodulates the data signal. Note that the data signal is recorded in a frequency band lower than that of the video signal at a position having a predetermined relationship with the portion of the track where the synchronization signal is recorded. The reason why the demodulation circuit 9 and the data demodulation circuit 12 are provided separately here is as follows. That is, the video signal recorded on the magnetic sheet 1 is FM modulated, but data signals other than the video signal are DPSK modulated (Differential Phase 5hf), which is different from FM modulation.
t Keying) is adopted. Therefore, the demodulation circuit 9 described above is an FM demodulation circuit, and the data demodulation circuit 12
is a DPSK demodulation circuit.

Reference numeral 13 denotes a monitor for reproducing and observing video signals, and reference numeral 13' denotes a printer connected to print the video signals. The printer 13' starts operating when the signal at the start signal input terminal becomes H level, and during operation, the busy signal output terminal is set to L level. 1
4 is a modulator that performs DPSK modulation on data output from a CPU 40, which will be described later, in contrast to the data demodulator 12; The modulated data is output to the recording amplifier 16 at a timing corresponding to the timing.

15 is F for the video signal input from the video signal input terminal 18.
This is a recording amplifier that performs processing necessary for recording such as M modulation and outputs it to the recording amplifier 16. Reference numeral 19 denotes a reference signal generator, which generates accurate reference pulses (60 Hz) for rotating the magnetic sheet 1.

Reference numeral 20 denotes a magnetic piece provided on the above-mentioned magnetic sheet l, and the DC motor 2 is synchronized with a reference signal generated by a reference signal generator 19 using a signal from the magnetic piece 20 as described later. Rotation control is performed. 21 is a magnetic piece 20 when the magnetic sheet l is rotated by the DC motor 2.
This is a PG coil for detecting signals from.

22 is a waveform shaping circuit that shapes the waveform of the signal output from the PG coil 21, and the output of the waveform shaping circuit 22 is input to a CPU 40 and a motor control circuit 23, which will be described later.

23 is a control circuit for controlling the rotation of the DC motor 2, which outputs Vsync from the synchronization signal separation circuit 17 or the output signal of the reference signal generator 19, and the output of the waveform shaping circuit 22, that is, the output signal on the magnetic sheet 1. The rotation of the DC motor 2 is controlled so that the phase relationship with the signal from the magnetic piece provided in the DC motor 2 is in a predetermined relationship, for example, so that the two phases are always shifted by 7H. Here, when a recording operation is performed by the magnetic head 3-1.3-2, SWI is the synchronization signal separation circuit 1.
The rotation of the DC motor 2 is controlled based on Vsync and the signal input from the waveform shaping circuit 22, that is, the signal from the magnetic piece 20 provided on the magnetic sheet l. When the head 3-1.3-2 performs a reproducing operation, SWI is the reference signal generator 1.
9 side, and the reference signal from the reference signal generator 19 and the signal input from the waveform shaping circuit 22, that is,
The rotation of the DC motor 2 is controlled based on signals from the magnetic piece 20 provided on the magnetic sheet l.

23' is a driver that drives the step motor 24 for controlling the position of the head 3-1, 3-2 based on a signal from the CPU 40, which will be described later;
4 is the head 3-1.3 via the head moving mechanism 4.
-Move 2.

25' is a display circuit driven by a signal from the CPU 40, and as a display element, as shown in FIG. It is composed of a 7-segment display element that displays the feed speed of .3-2 (2 digits), a PB and LED that displays the reproduction mode, and a REC and LED that displays the recording mode.

26 is a ROM in which programs for the CPU 40 are stored.

27 is a RAM in which data of the CPU 40 is temporarily stored.
It is. 28 is a timer driven by the CPU 40, and 29 is a crystal oscillator that generates a reference clock for the CPU 40. Note that 80 is a detection circuit connected to photocouplers 81 and 82 that constitute a detection switch for detecting whether or not the magnetic sheet 1 is inserted.

SWI is a switch whose state is changed by a signal from the control circuit 30 that is driven based on a signal from the CPU 40. A video signal is input from the video signal input terminal 18, and Hsync is output from the synchronization signal separation circuit 17. , and when a signal indicating the recording mode is input from the CPU, the synchronization signal separation circuit 1
7 and the motor control circuit 23, if Hsync is not output from the synchronization signal separation circuit 17, or if the CPU 4
The reference signal generator 19 and the motor control circuit 23 are connected when a signal indicating that the reproduction mode is input from 0 is input.

SW2 is a switch whose state is changed based on a signal from the CPU 40, and is connected to the state where the head 3-1 is connected to the recording amplifier 16, the state where it is connected to the playback amplifier 6, and whether the head 3-1 is connected to the recording amplifier 16 or the playback amplifier 6. Switch between an intermediate state in which no connections are made.

Like SW2, SW3 is a switch whose state changes based on the signal from the CPU 40, and there are two states: connecting the head 3-2 to the recording amplifier 16, connecting the head 3-2 to the playback amplifier 6, and connecting the head 3-2 to the recording amplifier 6 and playback. Switching is made between an intermediate state in which no connection is made to any of the amplifiers 6.

When reproducing a video signal from the magnetic sheet 1, the SW4 is switched to the upper position in FIG. When the head 3-1 is connected and a field video signal is reproduced using only the head 3-1, the demodulation circuit 9 is switched to the upper side and the lower side in FIG.
The state where the CPU is connected and the state where it is connected to the l/2H delay circuit are alternately switched for each field.
This is a switch driven by 40.

SW5 connects the monitor 13 to the video signal input terminal 18 during recording.
This is a switch driven by the CPU 40 to connect the monitor 13 to SW4 during playback.

By the way, as mentioned above, the video signal recorded on the magnetic sheet 1 or reproduced from the sheet 1 can be a field video signal consisting of only one field, or a frame video signal consisting of two fields in a pair. However, in such a case, SW2. SW3. Switching of the states of SW4 and SW5 will be explained using FIG. 2.

Figure 2 shows SW2. SW3. SW4. It is a figure which shows the combination of the switching state of SW5.

In field playback, SW2 is connected to the playback amplifier 6, SW3 is in an intermediate state, that is, the head 3-2 is not connected to the playback amplifier 6 or the recording amplifier 16, and SW4 is set to an odd number. In the field, demodulation circuit 9
The signal is output directly from the input signal to the monitor 13, and in even fields, the signal is output to the monitor 13 via the 1/2H delay circuit 10. This switches alternately for each field, thereby preventing the occurrence of skew distortion.

Next, in frame reproduction, SW2 connects the head 3-1 to the reproduction amplifier 6 in odd fields, and is in an intermediate state in even fields, SW3 is in an intermediate state in odd fields, and connects the head 3-2 to the reproduction amplifier 6 in even fields. Connect to. Therefore, during frame reproduction, signals from either head 3-1 or 3-2 are alternately output to the reproduction amplifier 6 for each field.

In this case, SW4 is switched to the upper side in FIG. 1, and the signal from demodulation circuit 9 is directly output to monitor 13.

In addition, the monitor 13 is connected to SW4 even in the field playback frame playback ftL(7) state described above.
5 is driven.

Next, in field recording, SW2 connects the head 3-1 to the recording amplifier 16, and SW3 is in an intermediate state.

Therefore, during field recording, recording is performed by the head 3-1.

In frame recording, SW2 connects the head 3-1 to the recording amplifier 16 in odd fields and is in an intermediate state in even fields; SW3 is in an intermediate state in odd fields, and connects the head 3-2 to the recording amplifier 16 in even fields. Connecting. In frame recording, the combination of heads 3-1 and 3-2 can also be reversed.

Further, in both field recording and frame recording, during recording, the SW 5 is switched so that the monitor 13 is connected to the video signal input terminal 18 so that the video signal to be recorded can be observed on the monitor 13. In addition, if this occurs, SW
4 may be in any state.

Next, the switches 51 to 63 and 72 shown in FIG. 1 will be explained.

In giving this explanation, the external appearance of the apparatus of this embodiment shown in FIGS. 3 and 4 will also be explained.

FIG. 3 is a front view of the apparatus of this embodiment, and FIG. 4 is a front view of a remote control device used in the apparatus of this embodiment.

The switches 51 to 63 and 72 shown in FIG. 1 are the switch group provided in the device shown in FIG. 3, the switch group provided in the remote control device shown in FIG. The switches are divided into groups of switches provided in both the remote control device shown in FIG. 4 and the remote control device shown in FIG. Furthermore, the third
A first switch provided in the device shown in the figure.
In the figure, the switch provided only in the remote control device shown in Figure 4 is connected to the CPU via a line.
40 for convenience, the signal generated by operating the switch provided only in the remote control device shown in FIG. The light is converted into external light and input to the CPU 40 of the device shown in FIG. 3 via the remote control light receiving section 45 provided in the device.

It should be noted that the method of arranging the switches 51 to 63 and 72 can be considered in various other variations of this embodiment, and is not limited to this embodiment.

In FIGS. 1 to 4, 41 is a power switch, 42
is a slot for inserting the magnetic sheet 1. When the inject button 43 is turned on while the magnetic sheet 1 is inserted into the slot 42, the slot 42 automatically opens and the magnetic sheet 1 is inserted.
is injected. 43 is the above-mentioned inject button, 44A and 44B are the above-mentioned PB, LEDSREC,
LED, 45 is a remote control light receiving part that receives a signal from the remote control device shown in FIG. 4, 46 is an interval mode display LED that lights up when interval playback is set, 48 is field playback or recording, frame playback or recording A display indicating which of
are LEDs that display the operating states of a program playback setting switch 58, an interval time setting switch 57, and a program track setting switch 62, which will be described later.

51 is a REC mode switch for setting the recording mode and checking whether the track accessed by the head in the recording mode is recorded or unrecorded; when the switch is turned on, the track accessed by the head is (If the track being accessed by head 3-1 has already been recorded during field recording, or the track being accessed by head 3-1 or 3-2 during frame recording) has been recorded), REC,
The LED flashes to indicate that the track being accessed by the head is unrecordable, and if the track is not recorded yet, the REC LED lights up to indicate that it is recordable.

52 is a REC that determines the timing to perform the recording operation.
switch and the recording mode is set by the REC mode setting switch 51, and the switch 5
Magnetic sheet when 1 is turned on! will be recorded. Furthermore, if continuous recording is set in advance by a track feed speed setting switch 56, which will be described later, the switch 5
During the period when 1 is on, head 3-1.3-2 is automatically turned on.
Continuous recording is performed while shifting.

Reference numeral 53 denotes a PB mode setting switch for setting the playback mode, and when the switch 53 is turned on, the PB and LED that indicate the playback mode are lit.

54 is a track UP switch, and by operating the switch 54, the driver 23' rotates the step motor 24, and the head moving mechanism 4 moves the heads 3-1, 3-2, so that the heads 3-1.
3-2, and change the track accessed by the head toward the inner circumference. Also, when frame recording or playback is set by the field/frame setting switch 59, which will be described later, the track UP switch 5
4 is turned on, the heads 3-1, 3-2 are shifted by 2 tracks, and the 7-segment LED 25 also displays the 1-track number, which is shifted by 2 tracks, instead of the track number shifted by 1 track. When the track UP switch 54 is turned on when field recording or playback is set, the head 3-1°3
-2 is shifted toward the inner circumferential direction one track at a time, and the shift number shifted by one track is also displayed on the 7-segment LED 25.

In addition, when the recording mode is set and the track UP switch 54 is operated, the head 3-1°3-2
When the head 3-1.3-2 is shifted, if the track accessed by the head 3-1.3-2 has already been recorded, the REC1RED44
B performs a blinking display. 55 is a track UP switch 54
On the contrary, this is a track DOWN switch for changing the access of the head 3-1, 3-2 toward the outer circumference.

Similarly to the track UP switch 54, when the switch 55 is set to frame recording or playback, when the switch 55 is operated, the 7-segment LED 25
The track number shifted by 2 tracks is displayed instead of the track number shifted by 1 track, and when the switch 55 is operated when field recording or playback is set, the track number shifted by 1 track is displayed. A number will be displayed.

Also, in the case where the recording mode is set in advance in the same way as explained for the track UP switch 54, and when the head 3-1.3-72 is shifted by operating the track DOWN switch 55, the access is made. REC, if the track has been recorded;

RED44B performs a blinking display.

56 automatically and continuously performs such operations while shifting the head when recording and reproducing, but it also switches whether to perform them singly, and if it is performed continuously, how many times per second are the operations performed. This is a track feed speed setting switch for setting the track feed speed.

When the switch 56 is pushed once to turn it from on to off,
The track feed speed is displayed instead of the track number on the 7-segment LED 25, and in this state, if the track feed speed setting switch 56 is turned on again within the predetermined time clocked by the timer 28 shown in FIG. Each time the 7-segment LED 25 is turned on, the 7-segment LED 25 indicates, for example, "8" indicating that two screens are to be continuously recorded or played back in one second, "5" which is showing that five screens are to be continuously recorded or played back in one second, and 1. 1 per second
“IG” indicates continuous recording or playback of 0 screens.
“, “1” indicates single-shot recording or playback
cyclically displayed. Also, by turning on and then turning off the switch 56, the 7-segment LED 2
When the timer 28 completes counting of the predetermined time without turning on the switch 56 again after the track feed speed is displayed instead of the track number in the LE.
D25 returns from the state where the track feed speed is displayed to the state where the normal track number is displayed.

Further, when the track feed speed is changed by the switch 56, if frame video recording has been set in advance by the field/frame setting switch 59 and the REC mode setting switch 51, the speed is 100% per second.
Continuous screen recording is not set.

57 is an interval time setting switch. That is, the interval time setting switch is used to set the interval time for track forwarding when continuous playback is performed but the playback interval time is relatively long, or when program playback is set by the program track setting switch 58 described later. 63 to 72 within 10 seconds after the switch is turned on.
Set the interval time using the 1° key switch shown in .

Incidentally, when any switch other than the 10 key switches 62 to 71 is turned on after the interval time setting switch 57 is turned on, the interval time setting is automatically canceled. Reference numeral 58 denotes a program playback setting switch for setting a program playback mode in which the order of playback tracks is programmed in advance and the playback operation is performed continuously at the interval time interval set by the interval time setting switch 57.

To specify the order of playback tracks, first turn on the switch 58 to set the program playback mode, and then operate the track UP switch 54 and track DOWN switch 55 to select the track being accessed by the heads 3-1 and 3-2. This is done by changing the number of the track being checked on the monitor 13 by turning on a program track setting switch 62, which will be described later, while playing back the video of the desired track and checking it on the monitor 13. Reference numeral 59 denotes the aforementioned field/frame setting switch, and each time the switch is turned on, the field recording or reproduction mode and the frame recording or reproduction mode are alternately switched.

Note that when the continuous recording mode of 10 screens per second is set in advance by the REC mode setting switch 51 and the track feed speed setting switch 56, when frame recording is selected by the field/frame setting switch 59. The track advance speed is automatically changed to continuous recording mode of 5 screens per second. .

That is, compared to field recording, during frame recording the head 3-1.3-2 must be shifted by two tracks at a time, so when recording 10 screens per second, 20 tracks per second are required. However, since such a high-speed head shift is difficult, continuous recording of frames for 10 screens per second is prohibited in this embodiment.

Reference numeral 60 is a start switch for performing continuous interval playback or program playback. When the start switch is turned on, when program playback is set, the tracks are played sequentially from the first track by the interval time setting switch 57, Interval playback is started according to the interval time set by the ten key switches 63 to 72, and when program playback is set, program playback is started. 61 is the start switch 60
This is a stop switch that stops the playback operation started by , and when this switch 61 is turned on during program playback, the track set at the beginning of the program will be automatically played back.

62 is the aforementioned program track setting switch.

Next, the operation of the embodiment of the present invention will be explained using the flowcharts shown in FIGS. 5 to 18.

First, when the power switch 41 shown in FIG. 3 is pushed in, the power of the device shown in FIG. 1 is turned on, power is supplied to each part of the circuit, and operation is started.

#1: Then, in FIG. 15, a register IS to be described later is reset to "O", a PB mode flag is set, and the track feed speed is initialized to 2 screens per second and the interval time to 3 seconds. Therefore, when the power is turned on, the continuous playback mode is automatically set in advance.

#2: Detect whether a jacket having a magnetic sheet 1 is pushed in or not. When the jacket is pushed in, the flow branches to #3, and when it is not pushed in, the flow skips #3 and branches to #4.

#3: When the jacket having the magnetic sheet 1 is being pushed in in #2, the DC motor 3 is driven.

#4: By detecting whether the switch 5 shown in FIG.
It detects whether or not the 50th track is being accessed.
When the head is accessing the track, the flow branches to #6, and when the 50th track is not accessed by the head 3-1, the flow branches to #5, as shown in Figure 1. The step motor 24 is driven to move the head 3-1 to the fifth position.
Repeat the loop of #4 and #5 to access the 0 track.

#6: When the head 3-11 accesses the 50th track, the flow reaches this step, and in this step, the register N for accessing the memory (RAM 27) is set to 50.

#7: In this step, it is detected whether the DC motor 2 is being driven. When the jacket having the aforementioned magnetic sheet 1 is inserted, the DC motor 2 is being driven by executing #3, so the flow advances to step #8 and the field flag is set. When the jacket is not inserted, the flow proceeds without passing through #3, so the DC motor 2 is not driven. Therefore, the flow returns to #2 to detect whether a jacket is inserted or not.

#8: When the DC motor 4 is being driven at 87, a field flag is set. Therefore, the LED 44A indicating the field mode shown in FIG. 3 lights up, and a display indicating the field mode is performed. That is, in this embodiment, when the power is turned on and the jacket is inserted, the field mode is automatically set.

#9: Detect the output of the level detection circuit 7 shown in Figure 1.
Then, it is determined whether the +'- rack that the node 3-1 is accessing is a recorded track or not.

Here, since the track that the head 3-1 is accessing has already been recorded, the output of the level detection circuit 7 becomes I (level), the flow advances to #lO, and the output of the level detection circuit 7 goes to the L level. When this happens, the flow advances to #16.

Here, #16 will be explained first.

#16: Set "0000" to address N in memory. Here, "0000" indicates that the track corresponding to the memory address is unrecorded.

Next, the flow from #IO onwards will be explained.

#10: In #9, when the output of the level detection circuit 7 is at H level, reproduces the signal recorded on the track,
The ID signal is taken in from the data demodulator 12.

#11: Detect the contents of the ID signal to determine whether the video signal recorded on the track is a field video signal or a frame video signal. If it is a field video signal, the flow advances to #15, and if it is a frame video signal, the flow advances to #12.

#12. In this step, it is determined whether the video signal of the track being accessed by the head 3-1 is an inner track or an outer track of the frame video signal. If it is the inside track, the flow advances to #14. If it is an outside or side track, the flow advances to #13.

#13: If the video signal of the track that the head 3-1 is accessing is a track outside the frame video signal, set the memory address N to "0011". Sho #1
When proceeding to this step for the first time, N is set to 50 in #6.

#14: In the case of a frame video transmission video inner track, set the memory address N to "0010".

#17: When the head 3-1 is shifted to the first track and it is detected that N=1, the flow is #2.
If N=1, the flow advances to #18.

#18: When it is detected in #17 that N=1 is not true, the head 3-1 is shifted by one track toward the outer circumferential side.

#19: In #18, when the head 3-1 is pushed toward the outer circumference, subtract it from N to get N. #20: #
If N=1 is detected in 17, that is, head 3-
1 accesses the first track provided on the outermost circumference to set the presence or absence of recording in the memory, then read the data at address N of the memory, that is, the first address of the memory, and find that it is "0011". Specifically, if the first track is the outer track of the two tracks constituting the frame video signal, the flow advances to #21; otherwise, the flow advances to #23.

#21: If it is detected in #20 that the first track is a track outside the tracks constituting the frame video signal, the flow advances to this step. In this step, if the data at the N+1 address of the memory, that is, the second address of the memory, is read and it is "001O", specifically, if the second track is the inner track of the two tracks constituting the frame video signal. for#
Proceed to 22.

#22: When frame video signals are recorded on two tracks, the first track and the second track, the flow moves to this step. Therefore, the field flag set in #8 is cleared and the field mode is changed to frame mode. Therefore, the field frame display LED 48 shown in FIG. 3 lights up to indicate the frame mode.

#23. #24: Set the register N indicating the memory address mentioned above to the 2-digit 7-segment LE shown in Figures 1 and 3.
Display it on D25.

This display allows the user to recognize the track number that the head 3-1 is accessing.

When this flow ends, the process jumps to the flow shown in 8 below. The flowchart shown in FIG. 6 will be explained below.

#A-1: Detects whether the REC mode setting switch 51 is turned on, and when the switch 51 is turned on, the flow calls subroutine ■ to set the recording mode, and when it is not turned on, the flow calls #A-1. Proceed to A-2.

#A-2: It is detected whether the REC switch 57 is turned on, and when the switch 52 is turned on, subroutine (2) is called, and when it is not turned on, the process proceeds to #A-3.

#A-3 Detects whether the PB mode setting switch 53 is turned on, calls subroutine ◎ when the switch 53 is turned on, and calls # when it is not turned on.
Proceed to A-4.

#A-4:) When the rack UP switch 54 is turned on, the flow calls subroutine ◎, and when it is not turned on, the flow advances to #, .\-5.

Go to #5.) Rack DOW N switch 55 is turned on. At this time, the flow starts from the subroutine (11), and if it is not turned on, proceeds to #, 8 to 6.

#Δ-6=When the track feed speed setting switch 56 is turned on, the flow calls subroutine [F], and when it is not turned on, the flow advances to #A-7.

#A-7: When the interval time setting switch 57 is turned on, the subroutine ◎ is called, and when it is not turned on, the process proceeds to #A-8.

#A-8 When the nib program setting switch 58 is turned on, subroutine (2) is called, and when it is not turned on, the process advances to #A-9.

#A-9 When the nib program track setting switch 62 is turned on, subroutine (2) is called, and when it is not turned on, the process advances to #A-10.

To #-10: When the field frame setting switch 59 is on, calls the subroutine; when it is not on, #A-I! Proceed to.

#A-II When the start switch 6o is turned on, subroutine (2) is called, and when it is not turned on, the process proceeds to #A--12.

#A-12 When the stop switch 61 is not turned on, the subroutine [phase] is called, and when it is not turned on, the process advances to #A-13.

#A-13: When the jacket detection switch (corresponding to the detection circuit 80 in Fig. 1) is turned on, jump to subroutine ■, and when it is not turned on, jump to #A-14.
Proceed to.

#A-14 Clear the Niprogram playback mode flag and the program playback execution flag.

As explained above, after the head 3-1 has accessed the first track of the magnetic sheet by executing the flow shown in FIG. 5, the flow jumps to the flow shown in (■) shown in FIG. While detecting the state of each switch shown in FIGS. 3 and 4, the flow shown in FIG. 3 is repeatedly executed until the state of each switch changes, and a subroutine corresponding to the operated switch is called.

Here, the subroutine [F] called when the track setting feed speed switch 56 is turned on will be explained using FIG.

FIG. 7 is a flowchart showing a subroutine executed when the switch 56 for changing the track setting feed speed is turned on.

#F-1. #F-2: The set value of the track feed speed is read from the memory, and the set value is set in a track number display buffer (not shown).

Therefore, the two-digit 7-segment LE shown in Figure 3
The track feed speed is displayed on D25. If the flow comes to this step for the first time, at #l every second °
Therefore, the two-digit 7-segment LE shown in Figure 3
The track feed speed is displayed on D25. If the flow comes to this step for the first time, the flow rate is 2 per second at #l.
Since the track advance speed on the screen is set, it is “8”.
” is displayed.

#F-3:) When the rack feed speed setting switch 56 is on, the flow repeats #F-3, and when the switch 56 is turned off, the flow moves to #F-4.

As mentioned above, once the track feed speed setting switch 56 is turned on, the two-digit 7-segment LED 25 shown in FIG. 3 switches from displaying the track number to displaying the track feed speed.
Next, the track feeding speed is changed by turning on the switch 56 again.

As mentioned above, #F-3 is provided so that the track feed speed is switched only when the switch 56 is turned on, turned off once, and then turned on again, and the display on the evening 7-segment LED 25 is the track number. If the switch 56 or any other switch is not turned on within a predetermined period (2 seconds) after switching from the display to the display of the track feed speed, the setting of the track feed speed is canceled. This is the step where

Predetermined time (2 seconds) after timer 1 starts counting
When the track feed speed setting switch 56 is turned on during this period, the flow progresses from #F-7 to #F-10, and when timer 1 completes timing, or when another switch is turned on, the flow advances from #F-7 to #F-10. The flow advances from -6 to #F-8.

#FL8: Clear the count value of timer 1.

#F-9: Contrary to #F-1, the two-digit 7 shown in Figure 3
The display of the segment LED 25 is returned to displaying the track number.

#F-10: Clear the count value of timer 1.

#F-] 1 track feed speed setting value is single (once recorded or played back, in field mode the head is shifted by one track,
In frame mode, the head is shifted by two tracks and then stopped), and if it is a single, go to #F-12, and if it is not a single, go to #F-1.
The flow advances to 3.

As described above, when the flow reaches this step after the power switch 41 is turned on, the track feed speed is preset at 2 screens per second in #1.

#F-12 If the track feed speed setting value is single, change the setting value to 2 screens per second, return to #F-1, display the changed track feed speed, and return to # above.
Execute F-3 to #F-7.

#F-13: l - Detect whether the rack feed speed setting value is 2 screens per second. If it is 2 screens per second, go to #F-14; if not 2 screens per second, go to #F-14.
The flow advances to F-15.

#F-1/l Change the track feed speed setting value to 5 screens per second, return to #F-1, display the changed track feed speed, and execute the above steps #F-3 to #F-7. .

#F-+5: +-Rack feed speed setting value is 5 per second
Detect whether it is a screen, and if there are 5 screens per second, #F-1
If the screen rate is not 5 screens per second, that is, if 10 screens per second is set, the flow advances to #F-17.

#F-16 Determine whether PB odd mode lag is set. If the PB odd mode lag is set, that is, the playback mode is set, #F-18. If the PB odd mode lag is reset, that is, the recording mode is set, it is #F-19. The flow continues.

3F-17: Change the track feed speed setting value to single, return to #F-1, display the changed track feed speed, and execute steps #F-3 to #F-7 described above.

#F-18: In the playback mode, field playback is performed regardless of whether the video signal recorded on the track of the magnetic sheet I is a field video signal or a frame video signal. Therefore, in such a case, the track feed speed setting value is changed to 10 screens per second, and the flow returns to #F-1.

#F-19: Detects whether or not the field flag is set, and if the field flag is set, that is, if track advance is set at 10 screens per second in recording mode and in field mode, #F is detected. The flow branches to -18.

Also, if the field flag is not set, that is, the track feed speed setting value of 10 screens per second is set in recording mode, and in frame mode, #F-1
The flow advances to step 7, where the track feed speed setting value is changed to single.

Therefore, in the subroutine [F] mentioned above,
When the track feed speed setting switch 56 is turned on, the two-digit 7-segment L E D shown in FIG.
The track feed speed is displayed at 25, and the track feed speed is changed by turning on the switch 5 again within a predetermined time (2 seconds).

In addition, the range of changes is single, 2 screens per second, and 5 screens per second when in frame recording mode, and 4 types: single, 2 screens per second, 5 screens per second, and IO screens per second when not in frame recording mode. It is a street.

The range of such changes is the head 3-1°3-2 shown in FIG.
This is related to the track shifting ability of the moving mechanism, etc., and is set in advance to an appropriate range depending on the track shifting ability.

Next, using FIG. 8, while executing the subroutine shown in FIG. 6, the track UP switch 54 and the track DOWN
The subroutines ① and ② that are called when the switch 55 is turned on will be explained. First, a flow called when the track UP switch 54 is turned on will be explained.

#D-1: When the flow reaches this step, check whether the track being accessed by the head 3-1 is the innermost track or not and check whether the register N is 50. Distinguish by this.

As a result, if N is not 50, go to #D-2;
If it is 0, the flow advances to #D-34, which will be described later.

#D-2: Determine whether the PB mode flag is set. When the PB mode flag is set, that is, in playback mode, #D-8; when the PB mode flag is not set, that is, in recording mode, #D-8
The flow advances to 3.

#D-3: Detect whether the memory address N+1 is "0000", that is, the N+1th track is unrecorded, and if it is unrecorded, it is #D-4; if it is already recorded, it is #D-7. Flow branches.

#D-4: The N+1 track was unrecorded #
If it is determined in D-3, it is determined in this step whether or not the field flag is set, and if it is set, the process goes to #D-6, and if it is not set, the process goes to #D.
The flow advances to -5.

#D-5: When it is determined that the field flag is not set in #D-4 and the mode is frame mode, this step is reached. In this step, it is detected whether or not the N+2nd content of the memory is "0000", and if it is ",o o o o", that is, if the N+2nd track is unrecorded, # D-6
If the value is not "0000", that is, if the N+2 track has already been recorded and is not valid, the flow advances to #D-7.

By executing Steplap from #D-3 to #D-5, if both consecutive two tracks are unrecorded in frame mode, the step will be changed to #D-6, and the step number ( If both have already been recorded, #D-
The flow advances to 7.

#D-6: Track accessed by head 3-1 in field mode, track accessed by head 3-1 in frame mode, and one track below the track; If the track accessed by the head 3-2 on the circumferential side is unrecorded, that is, if it is recordable, the flow reaches this step, and the RECLED 4.4 B shown in FIG. 3 lights up.

#D-7: Head 3-1.3-2 opposite to #D-6
If the track to be accessed and recorded has already been recorded, a warning is displayed by blinking the RECLED 44B shown in Figure 3 to make the user aware that recording is not possible. I do.

#D-8: If the PB mode flag is set in #D-2, the flow reaches this step and the field flag is set.

For the meaning of this step, see #D-9゜#D-10.
#D=13 will be explained.

#D-9+Memory (7) The N address is "0011", that is, as explained in #13, is the track that the head 3-1 is accessing the outer track of the two tracks that make up the frame video signal? If the track is on the outer circumferential side of the two tracks, the flow proceeds to #D-10, and if the track is not on the outer circumferential side, the flow proceeds to #D-13.

#D-10: Detects whether address N+1 of the memory is "0010", that is, the track being accessed by the head 3-2 is the inner track of the two tracks constituting the frame video signal; If the track is on the inner side of the two tracks, the flow proceeds to #D-11, and if it is not on the outer side, the flow proceeds to #D-13.

That is, if the inner track of the two tracks making up the frame video signal is erased or a new video signal is recorded after erasing, the track accessed by the head 3-1 will make up the frame video signal. Even if it is the outer track of the two tracks, the track that the head 3-2 is accessing may not be the inner track of the two tracks.

Therefore, in this case, head 3-■.

When shifting 3-2 to the inner circumferential side, it is necessary to shift only the 1 track and reproduce the track on which the video signal is newly recorded after being deleted or erased.

However, in such a case, the head 3-1°3-2 is
When only the track is shifted to the inner circumferential side, the head 3
A frame video signal is not necessarily recorded on the track accessed by -1.3-2, and completely different field video signals may be recorded thereon. In this case, if the field flag is reset, a problem arises in that two separate field video signals are reproduced as frame video signals. However, by providing step #D-8 described above, in this embodiment, when shifting the head toward the inner circumferential side, the field mode is set by setting the feel route flag in advance in this step, and the above-mentioned process is performed. Even in this case, it is possible to solve the problem that a separate field video signal is reproduced as a frame video signal.

#D-11; In this step, it is detected whether register N is 49 or not, and if N is 49, #D-11;
If N is not 49, the flow branches to #D-12.

#D-12: The flow reaches this step when form video signals are recorded on the two tracks accessed by heads 3-1 and 3-2. When such recording is being performed, when the track UP switch is turned on, the driver 23 is driven to shift the head 3-1, 3-2 by one track in this step, and then #D-
At step 13, the l track head 3-1.3-2 is further shifted. Also, as mentioned above, head 3-1.3-
Every time 2 is shifted, N is updated by l.

#D-13; Similar to #D-12, heads 3-1, 3
-2 by one track.

#D-14; Similarly to #23, display N on the 2-digit 7-segment LED 25 shown in FIG.

In this embodiment, these steps are #D-12 and #D-13.
The head provided in the flow later than 3-1, 3
When a frame video signal is recorded on the track being accessed by -2, the track number displayed on the LED 25 is updated by 2, and when a field video signal is recorded, it is displayed on the LED 25. The track number is updated one by one, and it is possible to display which of the field video signal and frame video signal is recorded on the magnetic sheet l.

Also, if this step is provided between #D-12 and #D-13, frame video signals will be recorded on the two tracks accessed by heads 3-1 and 3-2. Even if the track number is 1, if the track UP switch 54 is turned on, the track number displayed on the LED 25 will be 1.
It will be updated one by one.

#D-15; Determine whether the PB mode flag is set. #D-16 if set; #D-1 if not set
The flow branches to 19.

#D-16; Memory address N is "0011" Determine whether the track being accessed by the head 3-1 is a track toward the outer circumference of the tracks on which the frame video signal is recorded. Here, N corresponds to the number of the track that the head 3-1 is accessing after the heads 3-1 and 3-2 have already been moved, as repeated above. Here, the content at address N of the memory is “0011”.
”, the flow branches to #D-17; if not “0011”, the flow branches to #D-19.

#D-17, the contents of memory address N+1 are “0010”
”.

That is, it is determined whether the track being accessed by head-3-1 is the inner track of the two tracks on which frame video signals are recorded.

Here, if the N+1 address of the memory is "0010", the flow branches to #D-18, and if it is not "0010", the flow branches to #D-19.

#D-18; When the flow reaches this step via #D-16 and #D-17, heads 3-1 and 3-2
Since frame video signals are recorded in the two tracks accessed after moving, the field flag set in #D-8 is cleared and the frame playback mode is entered.

#D-19; In this step, it is determined whether or not the automatic track feed flag is set. If it is set, the process returns to #D-20; if it is set, the process returns from this subroutine (RTS
).

The automatic track feed flag will be explained later. The flag set in the subroutine ■ lag and automatically send the track Run a program that repeats playback while During the process, a subroutine is used when calling ■ described later. The extraction is provided from ■ and ■. ing.

#D-20; Import the track feed speed setting value from memory.

#D-21,) Determine whether the rack feed speed setting value is single or not, and if it is single, go to #D-34, and if it is not single, go to #D
-22, the flow branches.

#D-22; Determine whether the track feed speed setting value is 2 screens per second, and if it is 2 screens per second, check #
If there are not two screens per second at D-23, the flow branches to #D-24.

#D-23: WAIT TI in CPU40
Set the MER register to 28.

#D-24; Determine whether the track feed speed setting value is 5 screens per second, and if it is 5 screens per second, check #D-24;
If there are not 5 screens per second, the flow branches to #D-26.

#D-25; Set WAIT TIMER register to 1
Set to 0.

#D-26, 1 per second as track feed speed setting value
If 0 screen is set, the flow reaches this step and the WAIT TIMER register is set to 4.

Note that the WAIT TIMER registers set in #D-23, #D-25, and #D-26 are used to control the track feed speed, and are described later in #D-31 and #D-3.
2, the value is subtracted every time the magnetic sheet l is rotated once by the DC motor 2.

@D-27; Determine whether or not the REC execution flag is set, and if it is set, go to #D-28, and if it is not set, go to #D-31.
The flow branches. Here, the REC flag is a flag that is set in subroutine ■, and is set by #D from the WAIT TIMER register when subroutine ■ is called during execution of a program that repeats recording while automatically sending tracks. -2
9, #D-30 is provided to obtain the time equivalent to the time required for recording by subtracting 2 or 5. That is, in the recording mode, the rotation state of the magnetic sheet 1 is detected from the PG coil 21 to determine the timing for recording the signal to be recorded from a predetermined position on the magnetic sheet, and the signal is recorded on the magnetic sheet l. It is set up for the purpose of

Subtract 2 from the TIMER register, and if not set, subtract 5 from the WAIT TIMER register. If 10 screens per second is set as the track feed speed, the WAIT TIMER register is set to 4, but such a setting is possible only in field mode, so in this case, the WAIT TIMER register is set to 5. is never subtracted.

#D-31; Detects whether there is a pulse from the reference signal generator 19 shown in FIG. Repeat the flow.

#D-32, subtract 1 from the contents of the WAIT TIMER register.

#D-33, it is determined whether the content of the WAIT TIMER register has become 0 or not, and if it is 0, the process branches to #D-34, and if it is not 0, the process branches to #D-31.

In steps #D-32 and #D-33, the timer for controlling the track feed speed is set to WAITT.
An IMER register and a reference signal generator 19 were used.

Therefore, the contents of the WAIT TIMER register are
Compared to the method of configuring a timer by subtracting the output of the G coil 21 according to the output of the waveform shaping circuit 22 that shapes the waveform, stable and more accurate clock operation can be performed. That is, the output of the PG coil 21 may include errors due to uneven rotation of the magnetic sheet l, but the output of the reference signal generator 1
The output of 9 is substantially free of such errors. Further, when performing interval reproduction or recording, it is desirable to stop the rotation of the DC motor 2 during the interval time in order to save power consumption. When performing such an operation, the waveform shaping circuit 22
Although the method of subtracting the WAIT TIMER register according to the output of the timer cannot measure the interval time over time, the method of this embodiment allows stable timekeeping operation even when such an operation is performed. .

#D-34; Determine whether or not the REC execution flag is set, and if it is set, return (RTS) to the original program that called the subroutine ◎; if it is not set, # Branch to D-35.

#D-35; Determine whether or not the track UP switch 54 is on, and if it is on, further shift the track accessed by the heads 3-1 and 3-2 to the inner circumference side. In order to do so, the flow branches to #D-1, and when it is off, the flow branches to #D-36.

#D-36; To determine whether or not the track DOWN switch 55 is on, and when it is on, shift the track accessed by the head 3-1.3-2 to the outer circumferential side. #E-1 of subroutine ■, and when it is off, the corresponding subroutine O
Return to the program that called.

Next, the track DOWN switch 55 Subroutine executed when turned on I will explain about ■.

Each step #E-1 to #E-13 of subroutine ■ is each step #D- of subroutine ■.
Since the steps are similar to steps 1 to @D-13, detailed explanation will be omitted.

However, subroutine ■ is track DOWN' switch 5.
In order to shift the tracks accessed by heads 3-1 and 3-2 to the outer circumferential side when head 5 is turned on, for example, in #E-, it is detected whether N=1, and in #E-9, it is detected whether N=1. It is detected whether the memory (N-1) battery is "0010", that is, the (N-1) l-rack is the inner track of the two tracks constituting the frame video signal, and in #E-10, the memory (N-2) It is detected whether the address is "001 bit", that is, the (N-2)th track is the outer track of the two tracks constituting the frame video signal, and in #E-11, N=2 In #E-12 and #E-13, the head 3-1, 3-2 is shifted by l track toward the outer circumferential side.

Next, the subroutines ① and ② that are called when the field/frame changeover switch 59 and the RFC mode setting switch 51 are turned on will be explained using FIG.

#J-1: When it is detected in #A-10 shown in FIG. 6 that the field/frame changeover switch 59 is turned on, the flow advances to this step, and in this step, the field flag is set. If it is set, go to #J-2, if it is not set, go to #J-4
The flow branches.

#J-2; When the field flag is set in #J-1, the field flag is cleared in this step.

#J-3, it is determined whether the PB mode flag is set, and if it is set, the flow branches to #J-8; if not, the flow branches to #J-5.

#J-4; When it is detected in #J-1 that the field flag is not set, the field flag is set in this step. .

When the PB mode is not set, that is, when the field flag is cleared in #J-2 when the field flag is cleared in the recording mode, the frame recording mode is entered, and as explained in subroutines ① and ②, tracks are recorded at 10 screens per second. I can't send it. Therefore, when switching from field mode to frame mode in the subroutine, if a track feeding speed of 10 screens per second is set as the track feeding speed, it is necessary to prohibit such switching.

Therefore, according to this embodiment, #J-6 and #
When a track feed speed of 10 screens per second is set by J-7, the track feed speed setting value is automatically changed to a track feed of 5 screens per second.

#J-5-; Track feed speed setting value from CPU
Incorporate into 40.

1-6; If the track feed speed setting value imported in #J-5 is 10 screens per second, #
If there are not 10 screens per second, the flow branches to #J-8.

#J-7; Change the track feed speed setting value to 5 screens per second.

#J-8; Field/frame setting switch 51
If the switch continues to be turned on, this step is repeated, and only when the switch turns off from on, returns to the step shown in #A-1 in FIG.

Next, subroutine (2) called when the RFC mode setting switch 51 is turned on will be explained.

#B-1; When it is detected that the REC mode setting switch 51 is turned on in #A- shown in FIG. 6, the flow branches to this step, and the PB shown in FIG.
, the LED 44A goes out and the PB mode flag is cleared.

#B-5': This step is repeated while the REC mode setting switch 51 continues to be turned on, and when the switch is turned off, the flow branches to #B-7.

#B-7; When the REC mode setting switch 51 is turned off, it is determined in this step whether the field flag is set, and if the field flag is set, the process goes to #A-1 in FIG. The flow returns to the step shown, and if the field flag is not set, jumps to #J-5 of subroutine ■, and #J-6.
By executing #J-8, when the track feed speed setting value is 10 screens per second, it is automatically corrected to 5 screens per second. Therefore, the REC mode setting switch 51
If the REC mode is set by
Limited to the screen.

Next, the subroutine ◎ called when the PB mode setting switch 53 is turned on will be explained using FIG.

#C-1; PB in #A-3 shown in Figure 6
When it is detected that the mode setting switch 53 has been turned on, the flow branches to this step and the field flag is temporarily set. That is, separate field video signals are recorded on the two tracks being accessed by heads 3-1 and 3-2, and a frame recording mode is set in which the PB mode flag is cleared and the field flag is reset. In this case, the PB mode setting switch 53
In this step, in order to prevent separate field video signals from being interlaced and played back when the track being accessed by the heads 3-1 and 3-2 is immediately played back after detecting that the Field flags are set.

#C-2; Detects whether the memory address is "0011", that is, the track being accessed by the head 3-1 is the outermost track of the two tracks on which the frame video signal is recorded; In some cases, “0” is sent to #C-3.
011'', the flow branches to #C-5.

#C-3; Detect whether the memory address N+1 is "0010", that is, the track being accessed by the head 3-2 is the inner track of the two tracks where the frame video signal is recorded, and set it to "0010". If so, go to #C-4“
0010'', the flow branches to #C-5.

#C-4; Head 3- in #C-2 and #C-3
When it is detected that frame video signals are recorded in the two tracks that 1.3-2 is accessing, the flow reaches this step, the field flag is cleared, and the frame mode is set.

#C-5; The PBS LED 44A shown in FIG. 3 lights up, the PB mode flag is set, and the playback operation is started.

#C-6: If the PB mode setting switch 53 continues to be turned on, this step is repeated, and if it is turned off, the process returns to #A-1 via #A-14 shown in FIG. 6.

Next, using FIG. 1, set the interval time setting switch 57.
We will explain the subroutine ◎ that is called when is turned on. First, in subroutine (2), timer T' is initialized to O.

#G-1; In #A-7 of FIG. 6, when it is detected that the interval time setting switch 57 is turned on, the timer T' is initialized to O, and then the flow reaches this step, Furthermore, when the 10 key switches 63 to 72 are turned on, the signal goes to #G-2, and the 10 key switches 63 to 72 are turned on.
When 72 is not turned on, the flow branches to #G-3.

#G-2, set interval time Ti to lO key switch 6
The interval time Ti is changed to the interval time Ti set by 3 to 72.

It is determined whether any switches other than #G-3 and 10 key switches 63 to 72 are turned on. If they are turned on, the process branches to #G-4. If not, the process branches to #G-5.

#G-4; Detects whether or not the interval time setting switch 57 is turned on, and when it is turned on, it is turned on #G-1; when it is not turned on, it is turned on #A-1 shown in FIG. The flow branches.

#G-5; The above-mentioned T' is increased by 1, and the flow moves to #G-6 every second.

#G-6; Determine whether T' is lO, and if T' is 1
If T' is 0, branch to #A-1 shown in FIG. 6; if T' is not 10, branch to #G-1, and then proceed to #G-1, #
Repeat the loop of G-3, #G-5 and #G-6 T'
When becomes 10, return to #A-1.

Therefore, in the above-mentioned subroutine (2), if no other switch is turned on within 10 seconds after the interval time setting switch 57 is turned on, #A shown in FIG.
The value returns to -1 and the interval time setting is canceled.

Also, in this subroutine ■, the interval time T
When i is set to “0”, subroutine is performed as playback operation.
For example, an external trigger mode is set to perform an operation when connecting to a printer, as described in .

Next, subroutine (2) called when the REC switch is turned on will be explained with reference to FIG.

@N-1; When it is detected that the REC switch 52 is turned on in #A-2 of FIG. 6, the flow reaches this step, and it is detected whether the PB mode flag is cleared, If it is not cleared, the flow returns to #A-14 shown in Figure 6 (R
TS) When cleared, the flow branches to #N-2.

Therefore, if the REC mode is not set, no recording will be performed even if the REC switch 52 is turned on.

#N-2; It is determined whether the N address of the memory is 'oooo'', that is, whether the track being accessed by the head 3-1 has not yet been recorded. If it is not unrecorded, the process shown in FIG. The flow returns to #A-14 shown in the figure, and if it is unrecorded, the flow branches to #N-3.

#N-3: It is determined whether the field flag is set, and if it is set, the flow branches to #N-5, and if it is not set, the flow branches to #N-4.

#N-4; This step is entered when the frame recording mode is set, but if address N+1 of the memory is "0000", that is, the track being accessed by head 3-2 has not been recorded yet. #A-1 shown in Figure 6 if it is not unrecorded.
The flow returns to 4. In addition, in such a case, REC, L
ED44B is blinking.

Also, if such a track is unrecorded, If so, the flow branches to #N-6.

#N-5: A video signal for one field is recorded by the head 3-1 on the track accessed by the head 3-1 on the magnetic sheet l.

#N-6; When the flow reaches this step, the frame recording mode is set, so the video signal for 1 field is recorded on each of the two tracks on the magnetic sheet 3-1, 3-2. recorded by. Next, the step motor 24 is driven to shift the heads 3-1 and 3-2 inward by one track.

Note that when #N-5 and #N-6 are executed, SW2 to SW5 are driven as explained in FIG.

#N-7; Set the REC execution flag.

#N-8; Call subroutine ■, head 3-
If 1 is accessing a track other than the 50th track, #
The flow moves from D-1 and #D-2 to #D-3. Next, steps #D-3 to #D-14 are executed to move the heads 3-1 and 3-2 toward the inner circumferential side by l track. If in frame recording mode, head 3-1 is placed on the inner circumference side by l track in advance with #N-6.
．． Since the head 3-2 has been moved, the head 3-1 accesses the track adjacent to the track recorded at #N-6 even in the frame recording mode. Further, when the tracks recorded by the heads 3-1 and 3-2 have been recorded, the REC and LED 44B shown in FIG. 3 blink to warn the user.

The flow then branches from #D-15 to #D-19 and #
The flows shown in #D-20 to #D-34 are executed via D-19.

In other words, if the track feed speed setting value is single, #D-21 to #D-34
The flow branches to #N-9 and returns to #N-9 according to the REC execution flag set in advance at #N-7.

If 2 screens or 5 screens per second are set, subtract the WAIT TIMER register by the time necessary for recording in #D-28, and then
Count down the TIMER register and wait
When the TIMER register becomes O, the flow is #D-3
3 to #N-9 via #D-34 according to the REC execution flag set in #N-7 as described above.
Return to

#N-9; Clear the REC execution flag.

#N-10; This step is the same as @D-20, and the set value of the track feed speed is imported from the memory.

#N-11; If the set value of the track feed speed is single, go to #N-12; if not, go back to #A-14 shown in FIG. 6.

#N-12; l-When the rack feed speed is set to single, repeat this step as long as the REC switch 52 is turned on (repeat the subroutine ■
is executed and recording is not performed.

When the track feed speed is set to other than single and the RFC switch 52 is turned on, #N-
The subroutine ■ is called from #A-1 and #A-2 from #A-11 through #A-14, and the above flow is executed.
As long as the switch 52 is on, recording continues at the set track feed speed. When the REC switch 52 is turned off, the flow changes from #N-12 to #A-14.
, #A-L proceeds to #A-2, but the continuous recording ends without calling subroutine (2) in #A-2.

Next, the subroutine (2) called when the program setting switch 58 is turned on will be explained using FIG.

#H-1: When it is detected in #A-8 of FIG. 6 that the program setting switch 58 is turned on, this step is reached, and it is determined whether or not the PB mode flag is set, and the When it is set, it is #H-2, and when it is not set, it is #H-2 as shown in Figure 6.
Return to A-1 (RTS).

This step is provided to prohibit program settings in the recording mode. That is, in this embodiment, when setting a program, a playback mode is selected in advance, so that the program is set while checking the image recorded on the magnetic sheet 1 on a monitor, for example.

Further, by automatically setting the PB mode flag when the program setting switch 58 is turned on, the operation to the reproduction mode can be performed automatically.

In this case, a step similar to the step shown in #C-5 need not be provided in place of #H-1.

#H-2; When executing a program playback in the program track memory shown in FIG. 14 where the program is stored, set the ① register indicating the address where the track number to be played next is stored to O.

#1-1-3; Set the program playback mode flag indicating that it is the program playback mode and return to #A-1.

Next, after the program playback mode is set by subroutine ■, the first
This will be explained using Figure 5.

#I-1; Determine whether the program playback mode flag is set, and if it is set, #I-2
is not set, the flow branches to #A-1.

Therefore, when the program playback mode is not set by the program setting switch 58, no program setting operation is performed even if the program track setting switch 62 is turned on.

#I-2; Write the same contents to register M as the contents of register S (initially set as S20 when the power is turned on in #l) indicating the start address where the program of the program track memory is stored. .

#r-3, the data in the program track memory at the address stored in register M is stored at an address l larger than the address. In other words, the data indicating the track number stored in the program track memory is stored at an address larger by l than the address where the data is stored.

#l-4; Write the value obtained by adding 1 to the contents of register M to register l.

@T-5; Subtract 1 from the contents of register M.

#I-6: Determine whether the contents of register M are O or not,
If it is O, the flow branches to #■-7, and if it is not O, the flow branches to #I-3.

The flow from #I-3 to #I-6 is repeated, and when the contents of register M become 0, all data stored at each address in the program track memory is transferred to an address larger by l. Therefore, when this flow is repeatedly executed and the flow branches from #I-6 to #■-7, no data is stored at address 1 of the program track memory.

31-7; The number of the track that the head 3-1 is accessing is stored at address ll:[ of the program track memory. Therefore, by turning on the program track setting switch 62, the head 3-1 is accessed and the number of the track on which the video being played back is recorded is programmed.

#T-8; Add 1 to the contents of register S. By executing this step, register S always has #■
The first address (largest address) where the data of the program track memory moved by executing the flow from -3 to #■-6 is stored.

#I-9: If the program track setting switch 62 is turned on, this step is repeated; if it is turned off, the process returns to #A-1.

If the user wants to continue setting the program, turn on the track UP switch 54 or the track DOWN switch 55 to set the head 3-1.3-.
Program settings can be made by changing the track being accessed in No. 2 and turning on the program setting switch 62 while checking the reproduced video when the desired track has been reproduced.

Note that each time the program setting switch 62 is turned on, the 14th
The data stored at each address of the program track memory shown in the figure will be stored at addresses one by one. Also, during program setting, the contents of register S1 and register I are exactly the same.

Next, program playback is performed to play back the program set by turning on the program setting switch 58 and the program track setting switch 62, and the head 3-1
A program executed when performing interval playback in which tracks are played back in order from the accessed track will be explained using FIGS. 16 to 18.

First, the subroutine 20 called up when the start switch 60 is turned on will be explained using FIG. 16.

#-1; When it is detected that the start switch 60 is turned on in #A-11 of FIG. 6, the flow reaches this step, and it is detected whether the PB mode flag is set and the PB When the mode flag is not set, the flow branches to #A-1, and when the PB mode flag is set, the flow branches to #-2. Therefore, in this embodiment, if the playback mode has not been set in advance, interval playback and program playback cannot be performed, so even if the start switch 60 is turned on by mistake during the recording mode, the process will continue. 1E
It is possible to prevent blogging from becoming Lffi #<I渭11. Also #C instead of -1 to #
By providing steps similar to those shown in step-5, it is possible to immediately start playing the interval playback program by simply turning on the start switch 60 without having to set the playback mode in advance.

-2 to #; Determine whether the program playback mode flag is set or not; if set, #K
-3 is not set, the flow branches to #K-4.

Here, the flow will be described when the program playback mode flag is not set, that is, when interval playback is performed.

-4 in #, it is determined whether the N address of the memory is "0000", that is, the track being accessed by head 3-1 is unrecorded, and if it is unrecorded, it must be 16 unrecorded in #. The flow branches to -5 at #. First, the flow from #K-6 will be described assuming that the track being accessed by the head 3-1 is unrecorded.

According to this embodiment described below, when the track being accessed by the head 3-1 is other than the 49th or 50th track, the interval playback is performed from the track to the track being accessed by the head 3-1. When it is the 49th or 50th track, only the tracks that have been recorded sequentially from the 1st track are played back, but the head 3-1 is moved between #K-2 and #K-4. If a step for driving the step morph 24 is inserted to access the tracks, only the tracks that have been recorded sequentially from the first track are always reproduced.

Therefore, when the head 3-1 is not accessing the first track but is accessing another track, it is extremely effective for automatically performing interval playback sequentially from the first track to perform a search.

-6 to #: Sets the automatic track advance flag indicating that interval playback is in progress.

-7 to #: It is determined whether or not the field flag is set, and when it is set, the flow branches to #I-19 when it is set to #1-8.

#-8; It is determined whether the track that the head 3-1 is accessing is the innermost track by detecting whether N is 50, and it is detected that N is 50. In this case, the flow branches to #-10, and if 50 is not detected, the flow branches to #K-11.

-9 to #; Indicates whether the track that the head 3-1 is accessing is one track outside the innermost circumference.
The determination is made by detecting whether or not 49.
When 9 is detected, the flow branches to #K-10; when 48 is not detected, the flow branches to #K-11.

-10 to #; In this step, it is determined whether the interval time Ti set by executing the subroutine ◎ is "0".

As will be described later, when the interval time Ti is "0", it is a mode in which the head 3-1 is softened by a program set in advance according to the external trigger signal, and for this mode, the interval time Ti is "0". When set to "0", the flow branches to #A-1; when not set to "0", the flow branches to #■(-12).

#-II; Call subroutine ◎, #D-1
The flow shown in ~#D-18 is executed.

When subroutine ◎ is called in subroutine ■, the PB mode flag is set, so the flow branches from #D-2 to #D-9, and then #
The track one track inner than the track accessed by the head 3-1 in step-4 is the inner track of the two tracks on which the frame video signal is recorded, and the head 3-1
When it is determined that head 1 is not accessing the 49th track, heads 3-1 and 3-2 access #D-12 and #D-13.
When the head is shifted to the inner circumferential side by 2 tracks and no discrimination is made, #D-13 moves the head 3-1 by 11572 minutes,
3-2 is shifted to the inner circumferential side. Also head 3-1.3
If a frame video signal is recorded in the track being accessed by -2, the field flag is cleared and the flow starts from #D-19 @K-
Move on to 14.

#1+2: Call subroutine ■#E-1~
The flows shown in #E-13 and #D-14 to HD-19 are executed, and the tracks on the outer circumference side adjacent to the track accessed by the head 3-1 at -4 in # and the outer circumference side for another one track are executed. When frame video signals are recorded on two tracks, heads 3-1 and 3-2 are #E-12 and #E-1.
#3 shifts the track to the outer circumference by two tracks, and in other cases, #E-13 shifts the track by one track to the outer circumference.

Also, if a frame video signal is recorded in the accessed track of #K-11 and <3-1.3-2, the field flag is cleared and the flow moves from #D-19 to #-13. .

-13 to #; It is determined whether the track that the head 3-1 is accessing is the outermost track by detecting whether the content of register N is 1, and it is detected that it is ■. -1 to # when
4, and -1 to # when l is not detected.
The flow branches to 2. Therefore # to -8 or #
When the flow branches to #K-12 at K-9, that is, when the head 3-1 is accessing the 49th track or the 50th track, # is -12 and # is -13.
By repeating the steps (1), the head 3-1 is
Tracks are controlled to be accessed.

#-14: Clear the automatic track feed flag.

As explained above, the flow from #14 to #K-14 is executed, and when the flow branches from #K-4 to #K-5, the head 3-1 moves to the track where the video signal is recorded. Tracks on which no video signals are recorded are essentially skipped without being played back.

Furthermore, by executing the flow from #-14 to #-14, when the flow branches from #K-4 to #K-5, the two tracks being accessed by heads 3-1 and 3-2 are #D if a frame video signal is recorded
Since the field flag is cleared at -18, the frame playback mode is automatically set. Further, when a field video signal is recorded on the track being accessed by the head 3-1, 3-2, the field playback mode is automatically set. Therefore, during interval playback, the most appropriate playback mode is automatically set according to the recording method of the video signal.

At #-5, the interval time Ti set in the subroutine ◎ is taken into the CPU 40 from the memory.

-15 to #; Similar to -10 to #, if the interval time GoI is "O" and the name is detected and it is "0゛', then #
to K-17, if not “0゛′, #K-16
The flow branches. Here, the explanation from #K-16 will be given assuming that the external trigger mode is not set.

-1+3 to $; Start timer 1 timing operation, #
Proceed to I-18.

-18 to #: It is detected whether or not the timer l has clocked for 1 second. If the timer is being counted, the flow branches to #K-19, and if the timer is in the middle of counting, the flow branches to #K-20.

-20 to #: It is detected whether the stop switch 6■ is turned on, and if it is turned on, the flow branches to #A-1, and if it is not turned on, the flow branches to #K-21.

Here, when the flow branches to #A-1, from #A-1 to #A-12 again
Since the steps are executed, when the stop switch 61 is turned on in the normal state, the flow calls the subroutine [phase] from #A-12. The subroutine [phase] will be explained below using FIG. 17.

4M-1; Detects whether the program playback mode flag is set, and if it is not set, goes to #A-14; if it is set, goes to 4M
The flow branches to -2.

1M-2, detect whether or not the program playback execution flag is set, and if it is set, go to 4M-3; if not set, go to 4M-4
The flow branches.

4M-3. Make the contents of register I the same as the contents of register S.

#M-4; Set register S to 0 and then execute 4M-3.

This subroutine [phase] will be described in more detail in the program playback mode. The following will be described in detail in #121 and subsequent sections.

-21 at #, it is detected whether the track UP switch 54 is on, and when it is detected that it is on, subroutine (■) is called and the heads 3-1, 3-2 are shifted to the inner circumferential side, and the track UP switch 54 is turned on. If it is not detected, the flow branches to #-22.

-22 to #: It is detected whether the track DOWN switch 55 is on, and when it is detected that it is on, subroutine (■) is called, and the heads 3-1, 3-2 are shifted to the outer circumferential side.
When it is not detected that it is on, the flow branches to @K-16.

-19 to #; subtract 1 from Ti.

-23 to #; When Ti is 0'', the flow branches to -24 to #, and when Ti is not "0", the flow branches to #K-16.

Therefore, by executing the above-mentioned steps #15 to #23, turning on the track UP switch 54 and track DOWN switch 55 during interval playback will record data on the track adjacent to the track being played. You can play videos that are on the screen. In that case, by keeping switch 54 or switch 55 on, the tracks being played can be automatically updated sequentially according to the track feed speed set in subroutine [F], and the number of tracks during interval playback can be updated automatically. You can also easily play back the video before the screen is placed.

Furthermore, when playing back a video recorded on a track adjacent to the track being played back by turning on the track UP switch 54 and the track DOWN switch 55, in this embodiment, before turning on the switches 54 and 55, When the remaining time of the interval time Ti of the track being played in is played back, the flow moves from #-23 to #K-24 and is updated to play a new track, but in FIG. As shown by the dotted line, if the flow jumps to #K-5, the interval time T1 can be reset to ensure that the image updated by the switches 54 and 55 can be observed for a certain period of time.

-24 in #, when the interval time Ti ends and the track to be played is updated, it is detected whether or not the program playback mode is set, and if it is set, it goes to #3, and if it is not set, it changes to 3. # The flow branches to K-6.

Next, the subroutine ◎ called when the program playback mode flag is set in #K-2 will be explained with reference to FIG.

#〇-1: Detects whether the contents of register S is “0” and when “0” is detected, transfers “0” to #K-5.
“When it is detected that this is not the case, the flow branches to #O-2.

As mentioned above, register S stores the start address of the program in the program track memory, and the content of register S is "0" if no program is stored in the program track memory. , so when it is "0", it branches to #■(-5).

#O-2, detects whether the contents of register I are "0" and when "0" is detected, goes to #0-3; when it is detected that it is not "0" The flow branches to #O-3.

As mentioned above, register I stores the address of the track memory where the track number to be played next is stored when program playback is executed.
#0-1-1 described below when executing program playback
As shown in Figure 3, 1 is subtracted each time one step program playback is executed.

Therefore, the reason why the flow branches to #0-2 and register I is detected as "0" is because the program is set and register S is not "0", and the program playback steps have been executed. In other words, when program playback is executed - times, #0
-3, the flow branches to #O-5 while the program playback is being executed -3.

#O-3, take in the interval time Ti set in the subroutine ■, detect whether the interval time Ti is "0", and if it is "0°', the flow is from the subroutine ◎, ■ to #A-1 Return to and end the program playback operation.

Therefore, the interval time is “0” The external trigger set by Program playback in Riga mode The program will play if it is executed as expected. The operation is aborted.

Also, if the interval time T1 is less than “0” Normal program when set outside During ram regeneration, the flow shifts to #O-4.

#O-4: Write the contents of register S to register I.

Program operation is started again.

#O-5, data (I) at the address of the program track memory set in register I (the data written to the address set in register ■ of the program track memory is shown with parentheses around I). read out.

#O-6: Subtract data (1) from N indicating the track number currently being accessed by the head 3-1, and if it is less than “0” then #0-7
, if it is smaller, the flow branches to #○-8.

#O-7; Set field flag. This set is for prohibiting head feeding in the frame mode like #D-8.

#0-8; Shift the heads 3-1, 3-2 by one track in the outer circumferential direction.

#O-9: Detect whether the data (1) is equal from N indicating the track number accessed by the head 3-1, and if they are equal, it is #0 - 10; if not, N indicates the track number.
If data (1) is larger than , the flow branches to #0-11.

#0-10: Heads 3-1 and 3-2 1 in the inner circumferential direction
Shift by a track.

Is it a field video signal or a field video signal? Frame playback and feed automatically playback is performed.

By repeating steps #0-6 to #0-10, head 3
-1 is controlled to access the track programmed in the program track memory.

#0-14; Subtract 1 from register ■. With this step, the flow can be branched by determining whether the program reproduction mode flag is set at #K-24.

#0-15, the program playback execution flag is set.

Therefore, when the subroutine ◎ is called in #-2, it is first determined whether a playback program is actually set, then it is determined whether the printer mode is set, and the external trigger mode is set. When the program is running, the program is executed only one way, and at other times, the program is played repeatedly.

Next, a flow when the external trigger mode is set will be explained. When the external trigger mode is set, the flow branches from #K-15 to #K-17.

-17 to #; Detects whether the printer connected as an external device is busy (executing a print operation) or not; if it is busy, the value is set to #A-1; if it is not busy, the value is -18 to #. The flow branches.

#-18; Sends a print start signal to the printer as an external device. The print start signal is executed by setting the signal level of the terminal connected to the printer to the I] level.

-19 to #; -20 to # to wait 150m5ec; -21 to # when printer is busy
If it is not busy, the flow branches to #■(-24).

-21 to #; It is detected whether or not the stop switch 61 is turned on. If it is not turned on, the flow goes to -20 to #, and if it is turned on, the flow returns to #A-1.

When executing #K-17' to #K-21' above, if the printer connected as an external device is busy, the flow returns to #A-1 as described above, and other switches are activated again. The flow shown in FIG. 6 is repeated until the switch is turned on. If the start switch 60 is turned on again while the flow shown in FIG. 6 is being repeated, the aforementioned flow will be repeated and #K-17' will be executed again.

Furthermore, when a printer is not connected as an external device, the signal from the busy signal output terminal of the printer shown in FIG. If a device such as a printer is not connected even though the external trigger mode is set, the track being accessed by head 3-1 or 3-2 will continue to be played; I won't update it.

Also, if a printer is connected as an external device and the printer is not busy,
When the flow advances to -18', send the print start signal to the printer and then go to -150 shown in -I9.
If printer operation is started after waiting for m5pc and printer becomes busy, -20 is set to # and -21 is set to # repeatedly until printer operation is completed or stop switch 60 is turned on. When the operation is finished, the flow changes from #K -20' to @-24
It is determined whether program playback is set by detecting whether the program playback mode flag is set. Here, if program playback is set, the flow branches to #-3 mentioned above, and if program playback is not set, the flow branches to #-6. Further, when the stop switch 60 is turned on, the flow is as described above.

Furthermore, if the external trigger mode is selected when program playback is set, the program playback operation is stopped after the program playback has been executed several times as described in #o-3.

Further, according to this embodiment, even if the external trigger mode is selected and program playback is not set, since -10 is set in @, the head 3 -
1. When the playback is performed in sequence from the accessed track in 3-2 to the last track, the playback operation is stopped.

Therefore, in external trigger mode, regardless of whether programmed playback is set or not, the playback operation stops after the normal playback is performed, so the printer is used as a device that performs external triggers. When using , only −-way printing is performed.

On the other hand, in modes other than external trigger mode, even if program playback is set or not, playback starts again from the beginning after playback is performed in a predetermined order. will be held. Therefore, when such a playback device is used in a mode other than the external trigger mode, so-called endless playback can be performed because playback is performed repeatedly in a predetermined order.

Further, although a printer is shown as the external trigger device in this embodiment, it may be a device having an electric transmission function, or any other device as long as it processes a reproduced signal.

In this embodiment described above, a disk-shaped magnetic sheet having a plurality of tracks was used as the storage medium in which information was recorded in a plurality of blocks, but an optical disk, which is an optical storage medium, was used. Alternatively, it may be a tape-shaped storage medium, or it may be a solid-state memory such as a semiconductor memory.

In addition, as a means for reproducing information from a storage medium, appropriate means are used depending on the type of storage medium, for example, a magnetic head is used when a magnetic storage medium is used as the storage medium, and a magnetic head is used when an optical storage medium is used. may be an optical head, and if a solid-state memory is used, it may be a means for accessing each block of the memory.

According to the embodiment of the present invention described above, recording speeds of 2, 5, and 10 single frames per second can be set in the field recording mode, while single frames per second can be set in the frame recording mode. Since 2 screens and 5 screens can be set, and the inoperable recording speed setting of 10 screens per second is limited, the recording speed of 10 screens per second will not be set by mistake in the frame recording mode. Furthermore, according to this embodiment, the above-mentioned setting range is displayed on the two-digit 7-segment LED shown in FIG. 3, so that it is easy to use for the user.

Further, in the embodiment described above, the first recording mode for recording a predetermined amount of information is the field recording mode, and the first
Although the second recording mode in which more information is recorded than the recording mode is the frame recording mode, it goes without saying that the first and second recording modes of the present invention are not limited to field and frame recording.

In this embodiment, subroutine D shown in FIG. 8 is used as a control means for repeatedly performing recording in the first recording mode or the second recording mode at a predetermined speed.

Further, in this embodiment, the means for setting the recording speed is the track feed speed setting switch 56 and the subroutine F that is called by turning on the switch 56, but the recording speed may be set directly using a numeric keypad, for example, or by various other methods. For example, it may be set mechanically using a dial or the like.

Further, in this embodiment, the means for limiting the setting range of the recording speed in the second recording mode to be smaller than the setting range of the recording speed in the first recording mode is provided in the subroutine F, particularly #F-16 and #F of the subroutine F. -19, #F-18
Although the steps shown in FIG. It may also be used as a means to limit.

<Effects of the Invention> As explained above, according to the present invention, the recording speed setting range is appropriately limited depending on the recording mode.

Therefore, it is possible to prevent a recording speed that is inoperable for the recording apparatus from being set.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram showing combinations of switching states of SW2 to SW5 shown in FIG. 1, and FIG. 3 is a front view of the device of this embodiment. 4 is a front view of the remote control device used with the device, and FIGS. 5 to 18 are the C shown in FIG. 1.
It is a flowchart of PU40. 1----------1 Magnetic sheet 3-1.3-2--1 Head 40------------CPU 68 Left CPI Jr: Mutual 7 Ryu 2L Co F R Ab Core/3 shoes R7'S Figure 14/'f'j 4I-2 SzS6/ T5 T5

Claims (2)

[Claims] (1) In a recording device having a first recording mode for recording a predetermined amount of information and a second recording mode for recording more information than the first recording mode, the first recording mode, or control means for repeatedly performing recording in a second recording mode at a predetermined recording speed; means for setting the recording speed; 1. A recording device comprising means for controlling a recording speed setting range to a small value. (2) The recording apparatus according to claim 1, wherein the setting means is means having a function of displaying the predetermined recording speed.