JPS61243978A - Video tape recorder - Google Patents

Abstract

PURPOSE:To execute satisfactorily a good continuous recording or reproduction of plural video tapes by constituting the titled video tape recorder so that the remaining mechanism part except that which is in the course of recording or reproduction becomes a recording pause or a reproducing pause, when a continuous recording or reproduction is set by a setting switch, and the pause of the next mechanism part is released, when the recording or reproduction is ended. CONSTITUTION:A video cassette is installed to two pieces of mechanism parts 1a, 1b, and a continuous recording is set by turning on a setting switch 7. By operating the operating switches 5a, 5b, the mechanism part 1a and 1b are set and held to recording and a recording pause, respectively, through a sequence holding circuit 8, and by a command from a controlling circuit 10, a terminal rpa of a system controller 12 outputs a recording display signal, and controls the mechanism part 1a and 1b to recording and a recording pause, respectively. When the recording of the mechanism part 1 is ended, a tape end detecting signal is outputted to a controlling circuit 4 from a tape end detecting circuit 3a, a signal from a terminal rpb of the controller 12 is outputted by a command from the controlling circuit 10, the mechanism part 1a stops, 1b releases the recording pause, and the recording is started.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a video tape recorder that performs continuous recording or continuous playback of a plurality of video tapes.

[Conventional technology]

Conventionally, a video tape recorder has one recording/playback mechanism, and when recording or playing back multiple video tapes continuously, prepare as many video tape recorders as the number of tapes, and load each tape into each tape recorder. At the same time as each tape recorder is installed, it is necessary to operate each tape recorder so that each tape recorder sequentially records or plays back the tapes.

In order to protect the tape and save power, video tape recorders generally automatically stop when the recording pause or playback pause continues for five minutes or more.

Therefore, when using multiple video tape recorders as described above, each time one tape recorder finishes recording or playing one tape, the next stopped tape recorder is set to record or play. It is necessary to record or play back one tape after another.

[Problem that the invention seeks to solve]

As mentioned above, the method of using multiple video tape recorders is extremely uneconomical and complicated to operate, and the tape is loaded and recording or playback is started depending on the recording or playback operation settings. However, there is a problem in that it takes time to transfer the tape to the next tape, and the transition from one tape to the next cannot be performed quickly, resulting in blank recording or playback.

Of course, if there is only one video tape recorder, such as in a general household, continuous recording and continuous playback of a plurality of tapes cannot be performed.

Furthermore, Japanese Patent Application Laid-Open No. 58-150106 discloses that a single video tape recorder is equipped with two recording/reproducing mechanisms, and is capable of recording two video tapes recorded in two different systems, for example, the VH8 system and β system. Although it is described that recording, playback, and dubbing between the two tapes are performed, in this case as well, in order to perform continuous recording or continuous playback of the two tapes, two video tape recorders must be prepared. As in the above case, it is necessary to operate both recording and reproducing mechanisms to record or reproduce, respectively, which poses the problem that the operation is complicated and the transition cannot be performed quickly.

[Means for solving problems]

This invention includes a plurality of recording/reproducing mechanism sections, a continuous recording or continuous playback setting switch, an order holding circuit that maintains the set order of recording or reproduction of each of the mechanical sections, and a plurality of recording/reproducing mechanism sections. Detecting a tape end of each tape by playback.

A tape end detection output means outputs a tape end detection signal for each tape, and the holding order of the order holding circuit and the tape end detection signal are inputted, and the first mechanical unit outputs a tape end detection signal for each tape, and It commands the recording or playback of the recording or playback, and also commands the recording or playback pause of the remaining mechanism, and each time the tape end detection signal is input, it instructs the mechanism that is next to be controlled for recording or playback to release the pause. and a control unit into which the recording pause or playback pause command and the pause cancellation command are input, and sequentially controls the operation of each of the mechanical units to record or playback. It's a tape recorder.

[For production]

Therefore, by loading a plurality of video tapes into each recording/playback mechanism and setting the setting switch to multiple continuous recording or continuous playback, the sequence of continuous recording or continuous playback held in the order holding circuit is At the initial stage of setup, the first recording/playback mechanism is controlled to record or play, and the remaining recording/playback mechanisms are controlled to record pause or playback pause, and the first recording/playback mechanism is controlled to record or play. Or, when playback ends and the tape end of the first tape is detected, the pause of the next recording/playback mechanism is released and the recording/playback mechanism starts recording or playing without tape loading time. Thereafter, each recording/reproducing mechanism unit is sequentially controlled to record or reproduce in the same manner, and continuous recording or continuous reproduction of each tape is automatically performed.

〔Example〕

Next, the present invention will be explained in detail with reference to FIGS. 1 and 2 showing one embodiment thereof.

(Configuration) - Figure 1 shows the block configuration when two recording/playback mechanisms are provided to continuously record two video tapes. In the figure, (+a) and (1b) are separately There are two recording/reproducing mechanism sections whose operation is controlled, each having a tape drive mechanism, a video head, an audio head, etc., and
Two cylinder servo circuits (2a).

(2b) The rotations of the head cylinders of the two mechanism sections (Ia) and (tb) are respectively controlled.

(3a) and (3b) are two tape end detection circuits provided in both mechanical parts (la) and (lb), respectively;
When detecting the tape end of the videotape installed in both mechanism parts (la) and (lb), the low level/I/C or lower 11L
(4) is a tape end signal output control circuit, which together with rain detection circuits (3a) and (8b) forms a tape end detection output means, which will be described later. The tape end detection signals of the rain detection circuits (8a) and (3b) are inverted and output according to the order held by the order holding circuit.

(5a) and (5b) are two recording operation switches provided in the operation section, which output a recording operation signal II L It when operated. (6a) and (6b) are two pause operation switches provided in the operation section, which output an "L" pause operation signal when operated. Note that a recording operation switch (5a) and a pause operation switch (6a) are provided for recording and pause operation settings for the mechanism section (ta), and a recording switch (5b) and a pause switch (6b) are provided for the mechanism section (tb). It is provided for recording and setting pose operations.

(7) is a continuous recording setting switch consisting of a two-contact switch, which is operated when setting continuous recording, the switching piece switches from the off contact (Of) to the on contact (On), and the switching piece switches between high level/L/ A continuous recording setting signal (hereinafter referred to as "°H°") is output.

(8) is an order holding circuit that maintains the set order of continuous recording, and when continuous recording is set by the setting switch (7), the order is set by operating the operation switches (5a) and (sb). The recorded order is maintained. (9) is each operation switch 4- (5a), (5b), (6a), (6b)
This is an operation signal output control circuit to which the operation signal of and the setting signal of the setting switch (7) is input, and when the setting signal is not input.

That is, in normal times when both mechanism parts (Ia) and (lb) are operated separately by operation, each operation switch -y-(5a), (
During continuous recording when the operation signals of 5b), (6a), and (6b) are inverted to °H" and output, and the continuous setting signal is input,
Regardless of whether or not there is an input operation signal, all output signals are
The output of the operation signal is prohibited by holding it at "L".

(1 (l) is a command signal output control circuit that forms a control command means together with the output control circuit (9), and the output control circuit (
4) II HIt tape end detection signal, output signal of order holding circuit (8) and output control circuit (9) °°
The operation signals of ■゛ are inputted, and in normal times, based on the input operation signals, the first recording command signal of °°L゛ for mechanism 0 section (1a), the first position command signal, Mechanism section (
The second recording command signal and the second pause command signal of II L' for Ib) are respectively output, and during continuous recording, the first
．． a second recording command signal; a first recording command signal; A second pause command signal is automatically output to instruct recording, recording pause, and pause cancellation.

αη is an initial stop command circuit to which the setting signal of the setting switch (7) is input;
．． A second stop command signal is simultaneously output.

(2) is a system controller forming a control unit, and a first record, pause, stop command input terminal (ra) to which a first record, pause, stop command signal is input.

(pa), (sa), a first motor detection input terminal (mia) connected to the servo circuit (2a), a first motor output terminal (moa), a first recording control display output terminal (
a plurality of input and output terminals for the mechanical unit (Ia) such as rpa), and a second terminal to which the second recording, pause, and stop command signals are input.
Record, pause, stop command signal input terminal (rb), (pb
), (sb), the second connected to the servo circuit (2b)
Motor detection input terminal (mib), second motor output terminal (mob), second recording pause control display output terminal (
It has a plurality of persons and output terminals for the mechanism section (lb) such as rpb) and a plurality of persons and output terminals for the recording/reproducing signal processing circuit section, and controls the operation of the entire tape recorder.

Note that the output terminal (rpa) outputs the first recording control display signal of °tH+'' only while controlling the mechanism unit (1a) to record, and the output terminal (rpb) outputs the first recording control display signal of °tH+” while controlling the mechanism unit (lb) to record. A second recording control signal of "°'■" is output only during the control.

(to) is an order change prohibition circuit, and both mechanical parts (la),
(tb) becomes a record, and the first. When at least one of the second recording control display signals is input, a change prohibition signal of "°l L +" is output to the order holding circuit (8), thereby prohibiting the order from being changed by the operation switches (5a) and (5b). do.

αa is a pause-side cylinder motor stop control circuit, which normally outputs the output terminals (WLoa) and (mob) during recording and recording pause control of the mechanism units (xa) and (tb).
The servo circuit (2
B) and (2b) respectively, and during continuous recording, the first.
Based on the second recording control display signal, the motor-on signal to the mechanism section (1a) or (1b) being controlled during the recording pause is cut off.

By the way, tape end detection signal output control circuit (4).

Order holding circuit (8) or initial stop command circuit αυ and order change inhibition circuit α1. The pause side cylinder motor stop control circuit αa is configured as shown in FIG.
In the figure, (4a) and (4b) are output control circuits (4
), one end is connected to the detection circuit (3a) and (8b), respectively, and the other end is connected to the positive power supply terminal ( B) and output from the order holding circuit (8). They are turned off by the second order signal II L'''. (4C) has both input terminals as switches (4a).

(4b) is an inverter connected to the other end.

(R2) , (R8) , (R4) , (R5) , (
R6) has one end connected to each operation switch (5a), (5b), (
6a), (6b) and the switching piece of the setting switch (7), respectively, and the other end is connected to the positive power supply terminal (10B). In addition, each operation switch-y-(5a), (5b), (6a),
(6b) and the off contact of the setting switch (7) (
Of) is grounded.

(8a) and (8b) are two analog switches provided in the 111g order holding circuit (8), one end of which is the operation switch (5a).

(5b), respectively connected to one end of the order change circuit q3.
Both are controlled off by the change prohibition signal of IT L 11.

(8C) has a set terminal C) and a reset terminal (7) connected to the other end of the switch (8a) l8b> fcR
8 type flip-flop, set terminal C), reset terminal (depending on the level of b, Q output terminal (q),
The level of the Q output terminal (q) changes as shown in the following truth table. Note that g and π in the table indicate set terminals (rain and reset terminal q), and C and Ql each maintain their previous state.

Truth tables (R7) and (R8) have flip-flops (8C) at one end.
Two pull-up resistors are connected to the set and reset terminals (S) and (r), respectively, and the other end is connected to the positive power supply terminal (10B). (8d), (8e)
One input terminal is a 7-lip-flop (8C) Q, Q
Output terminal (q).

(q) respectively, and the other end is connected to the switching piece of the setting switch (7), and the first... In addition to outputting the second order signals respectively, the mechanism section (1
a) is set as the first record, the first order signal becomes “I
When the mechanical unit (1b) is set to record first, the second order signal becomes °H".

(9a), (9b), (90), and (9d) are four Nantes gates provided in the output control circuit (9), and one input terminal is connected to each operation switch f (5a), (5b). ,(
6a) and (6b) are connected to each other, and the other input terminal is connected to the setting switch (7) via the inverter (9e).
) is connected to the switching piece. (90° (9g), (9
h), (9i), the cathode is each Nant gate (9a) ~
(9d) is connected to the other input terminal of
), (R11).

Each Nantes gate (9a) to (9d) via (R12)
are connected to the respective output terminals.

(10a) and (10b) are two three-person gates for recording commands provided in the output control circuit a1, and the first input terminals of both gates (10a) and (10b) ).

AND gate (
8d), and its second input terminal is connected to the output terminal of the ant game (8e) via a series circuit of a differential resistor (R14) and a capacitor (C2), and the second input terminal is connected to the output terminal of the ant game (8e). - The third input terminal of (10a) is connected to the connection point of the resistor (R9) and diode (9g), and the third input terminal of (10b) is the resistor (RIO).

゛Connected to the connection point of the diode (9f).

(100) and (10d) are two three-person gates for pause commands provided in the output control circuit 00, and the first input terminal of (100) is a resistor (R14).
, AND gate (8e) via capacitor (C2)
is connected to the output terminal of Noah game 1- (l
The first input terminal of the AND gate (8d) is connected to the output terminal of the AND gate (8d) via a resistor (RIB) and a capacitor (C1), and the first input terminal of the AND gate (8d) is connected to the output terminal of the AND gate (8d).

The second input terminal of (10d) is connected to the output terminal of the inverter (4C), and the third input terminal of the NOR gate (IOC) is connected to the connection point of the resistor (R11) and the diode (9h). The third input terminal of (10d) is connected to the connection point of resistor (R12) and diode (91).

(IOe) and (10f) are two diodes whose anodes are grounded, and the cathode of the diode (10e) is connected to the first input terminal of the NOR gate (+oa) (tub) and (1od), and the diode (xOf ) is connected to the second input terminal of the NOR gate (tea), (tub) and the first input terminal of the NOR gate (IOC).

(na) and (nb) are two inverters provided in the initial stop command circuit Qη, and the input terminal is the differential resistor (R
15).

The setting switch (
7) is connected to the switching piece. (110) is a diode whose anode is grounded, and whose cathode is connected to the input terminals of both inverters (lla) and (llb).

(13a) is a NOR gate forming the order change inhibiting circuit α, and its two input terminals are the first and second input terminals of the system controller (2). Second recording pause control display terminal (rpa), (rp
b), and outputs a change inhibition signal of °°L'' from the output terminal to the analog switches (8B) and (8b).

(+4a) and (F4b) are two AND gates provided in the stop control circuit α→, and the AND gate (14a)
One input terminal of the AND gate is connected to the second recording control display terminal (rpb), and one input terminal of the AND gate 1-(14b) is connected to the first recording control display terminal (RPA). The other input terminals of (14a) and (14b) are both connected to the switching piece of the setting switch (7).

(I4C) and (14d) are two diodes provided in the stop control circuit a4, and the anode is an AND gate (
F4a).

(14b), and the cathodes thereof are connected to the servo circuits (2a) and (2b), respectively. One end of (R16) and (R17) is the motor output terminal (moa) and (mob) of the system controller (2).
There are two coupling resistors respectively connected to the diodes (140) and (14d), and the other ends thereof are connected to the cathodes of the diodes (140) and (14d).

The operation section is also provided with various operation switches such as playback and stop for the mechanism section (1a) and various operation switches such as playback and stop for the mechanism section (lb).

The system controller (2) stores control programs for the mechanical units (1a) (tb) in response to each command signal, and also controls the operation to a stopped state even if the recording pause operation control continues for more than 5 minutes during continuous recording. The program is set not to do this.

When the first recording command signal and the first pause command signal are input simultaneously, the system controller (a) controls the operation of the mechanism section (1a) to a recording pose, and outputs the second recording command signal and the second pause command. If the signal is input at the same time, the mechanical part (
The operation of the mechanical unit (la) or (lb) whose operation is controlled to be in the recording pose is controlled as follows:
This is done by inputting the first or second pause command signal.

(Operation) By the way, the setting switch (7) is normally an off contact (Of
), and at this time the switching piece of the setting switch (7) is set to "II L", and the AND gates (8d), (8e),
The output signals of (14a) and (F4b) are held at '1L', and the other input terminals of the NOR gates (9a) to (9d) are held at 'H', and the AND gate (8d),
Analog switches (4a) and (4b) are turned off by the °°L'' output signal of (8e).

On the other hand, while the both side structures (la) and (lb) are held in a stopped state, both the recording control display terminals (rpa) and (rpb) are held at IT L'' and the Noah game 1- (13B)
The output signal becomes °I Hl”, and the analog switch (
8B), (8b) is onsuru.

Therefore, under normal conditions when continuous recording is not performed, the operation switch (
5a) and (6a), the mechanical part (
Recording of °°L'' for Ia), the pause operation signal is inverted to ``SiltH'' by Nando game 1-(9a), (9C) and output to Noah gates (lOa) and (toe), respectively, and the operation switch (5b).

The record of 11 L” for the mechanism unit (lb) formed by the ON operation of (6b), and the pause operation signal are transmitted to the Nantes gate (
9b).

(9d) is inverted to H” and the Noah gate (10b)
.

(10d), respectively.

Also, the analog switches (4a) and (4b) are turned off, and the output signal of the inverter (4C) is held at °°L".
Also, the output signals of AND gates (8d) and (8e) are '
(10B) ~
(10d) is the °■ of NAND gates (9a) to (9d)
Based on each operation signal of '', the first and second
The recording command signal and the first. The second pause N command signal is sent to the recording command input terminal (ra) of the system controller (a),
(rb), pause command input terminal (T)a).

(pb) respectively.

In response to the input of the first recording command signal, the system controller (2) outputs a first motor on signal from the first motor output terminal (MOA) to control the mechanism section (1a) to perform the recording operation, and performs the first recording. By simultaneously inputting the command signal and the first pause command signal, the first
A motor-on signal is output to control the operation of the mechanism section (1a) to a recording pose, and upon input of a second recording command signal, a second motor-on signal is output from the second motor output terminal (mob) to control the operation of the mechanism section (1a). (lb) is controlled for recording, and by simultaneous input of the second recording command signal and the second pause command signal, a second motor ON signal is output from the second motor output terminal (mob), and the mechanism unit (lb) is controlled to record. The recording pose is controlled by the operation.

The servo circuit (
2a) and (2b) are driven, and both mechanism parts (la) and (l
The head cylinder of b) rotates under servo control, and at this time the tapes attached to both mechanical parts (Ia) and (Ib) come into contact with the video head of the head cylinder, respectively.

Therefore, under normal conditions when the setting switch (7) is held at the off contact (off), the mechanism section (1a) is controlled to record by operating the operation switch (5a), and the operation switches (5a) and (6a ) can be operated at the same time.
a) is controlled to the recording pause, and the operation switch (
The operation of the mechanism section (lb) is controlled for recording by the operation of 5b), and the operation of the mechanism section (1b) is controlled for the recording pose by simultaneous operation of the operation switches (5b) and (6b). (5a), (5b), (6a), (
6b), the mechanism part (la) is opened.

(lb) is separately controlled to record or record pause. Note that, by operating other operation switches on the operating section, the mechanical sections (la) and (lb) are individually controlled to play, stop, etc.

Next, during continuous recording, first attach two video cassettes to the mechanism parts (IB) and (Ib), respectively, and set the setting switch (7) to the on contact (bn) by performing the continuous recording setting operation. Switch and set continuous recording.

When the setting switch (7) is switched to the on contact (on), it outputs a continuous recording setting signal of If HIt,
The rising edge of the setting signal is connected to the capacitor (C3) and resistor (R1).
5), when switching the setting switch (7) to the on contact (On), the inverter (11a),
(1lb) to 1st. a second stop command input terminal (sa),
(sb), the first pulse of °L'' similar to when the stop operation switch of the mechanism parts (la) and (lb) is operated.
A second stop command signal is input, and at this time, the system controller (2) operates to control the mechanical units (la) and (tb).
) are both reset-controlled to the stopped state.

In addition, since it will be in a stopped state, 1. The second motor output terminal (moa) and (mob) are both K*L HII,
The head cylinders of the mechanism parts (la) and (lb) are held stationary.

Next, by operating the operation switches (5B) and (5b), the recording order of the tapes in the mechanical units (la) and (lb) is set and held in the order holding circuit (8).

That is, when recording the tape of the mechanism section (1a) first, turn on the operation switch (5a) and setting the flip-flop (8C), and when recording the tape of the mechanism section (lb) first, Turn on the operation switch (5b) to reset the flip-flop (8C).

When set by turning on the operation switch (5a), the flip-flop (8) has a Q output terminal (q) of I
When I H11, the calculation output terminal G) becomes L,
The first order signal of AND gate (8d) becomes °゛■'' and the second order signal of AND gate (8e) becomes 'L.
""become.

In addition, when the flip-flop (8) is reset by turning on the operation switch (5b), the Q output terminal (q) becomes °゛L゛, the q output terminal 6) becomes H, and the AND gate (8d) The first order signal of the AND gate (8e) becomes ttH.
Become It.

Now, if the flip-flop (8) is set by turning on the operation switch (5a), then the AND gate (
The analog switch (4a) is turned on by the first sequential signal of °'H'' in 8d), and the first sequential signal t of H is differentiated by the capacitor (CI) and resistor (R13), and the NOR gate (10a) , (10b), (10d).
The training pass /L/ of Hlj is input.

Also, the second order signal of Antogame-1-(8e) is °°L
'', the analog switch (4b) is held off, and the capacitor (C2) and resistor (RI4
) is held at °'L pin.

On the other hand, by switching the setting switch (7) to the on contact (On), the output signal of the inverter (9e) changes to “
If the output signals of the Nant gates (9a) to (9d) are all set to IHl, the output signals of the Nant gates (9a) to (9d) will all become I Hl. All of the output signals from (9d) to (9d) are held at 'L''.

So Noah Gate (1oa), (1ob), (to
When only the first input terminal of d) is set to "°°H", the first and second recording command signals are output from the Noah gates (l0a) and (1ob), and the second pause command signal is output from the Noah gate (1od). is output, and at the initial stage of setting continuous recording, the output control circuit QO commands recording of the first mechanical section (+a) and commands a recording pause of the remaining mechanical section (1b).

Then, the system controller (2) controls the mechanical unit (la) to record based on the first recording command signal, and also controls the mechanical unit (1b) to enter a recording pose based on the second recording command signal and the second pause command signal. Control operation.

Note that by controlling the recording and recording pause, the 1st. A second motor-on signal is output, respectively.

- Also includes a mechanical unit (l) for controlling recording and recording pauses.
Tape loading of a) and (lb) is performed.

By the way, while controlling the mechanism unit (LA) to record, the first recording control table of H'' is output from the first recording control display terminal (RPA).
An indication signal is output.

Then, according to the first recording control display signal, the mechanism section (1a) starts to be controlled for recording, and at the same time, the output signal of the Noah gate (13a) becomes the order change prohibition signal of °'L'', and the analog switch (8B) , (8b) are turned off, the order change by the operation switches (5a) and (5b) is prohibited, and the flip-flop (8C) is set and held so that the order set in the order holding circuit (8) is not held. 0 Also, the first recording control display signal causes ant game-1-(1
The output signal of 4b) becomes II H”, and the diode (1
4d) is turned on, and the second motor on signal to the servo circuit (2b) is cut off.

Therefore, the mechanism section (la) is controlled to perform recording and starts recording on the tape, and while the mechanism section (1a) is controlled to perform recording, the mechanism section (lb) holds the rotation of the head cylinder stopped. The operation is controlled by the recording pause.

Then, the recording of the mechanism section (1a) progresses to the end of the tape,
When the recording of the first tape ends, the detection circuit (3a) detects the tape end of the tape, and the detection circuit (3a) detects the end of the tape.
3a) outputs a tape end detection signal of "°L" to the inverter (4C) via the analog switch (4a), and the inverter (4C) outputs a tape end detection signal of 1-(100).

The tape end detection signal converted into °■" is output to the second input terminal (10d).

Therefore, from Noah Gate (100) and (10d), the first.
The second pause command signal is output again.

On the other hand, the mechanical units (la) and (lb) are automatically reset to a stopped state when recording or reproduction progresses to the end of the tape.

Therefore, when the first and second pause command signals based on the tape end detection signal are output, the mechanical section (IB) is brought to a halt state, and the mechanical section (lb) is controlled to be in a recording pause. .

Then, the system controller (2) receives only the second pause command signal for the recording pause mechanism section (Ib) as a pause release command, and sets the recording pause of the mechanism section (lb) based on the second pause command signal. Then, the mechanism section (1b) is controlled to record.

Therefore, when the mechanism section (1a) finishes recording the first tape, the mechanism section (1b) releases the second tape by releasing the pause.
Recording of the th tape is started, and at this time the mechanism section (lb)
will immediately start recording the second tape, skipping the loading time.

Then, when the recording in the mechanism section (1b) advances to the tape end, the first . The second pose command signal is output, but since both structural parts (lB) and (lb) are in a stopped state at this time, the system controller (2) prohibits the reception of input of the two-pose command signal. , this ends continuous recording.

By the way, in the above case, the mechanism section (Ia) was set as the first mechanism section by turning on the operation switch (5a), but the mechanism section (lb) was set as the first mechanism section by turning on the operation switch (5b).
In this case, the first order signal becomes °°L'' and the second order signal becomes H'', and the mechanism part (lb) operates to record at the initial stage of setting. At the same time, the mechanical unit (1b) is controlled to a recording pause, and when the recording of the mechanical unit (1b) advances to the tape end, the tape end detection signal of °°L'' of the detection circuit (3b) is inverted. Based on the signal, the mechanism section (1a) is commanded to release the pause, and the mechanism section (1a) is controlled to record.

Therefore, continuous recording of two video tapes can be performed using one tape recorder, and at this time, continuous recording is automatically performed by simply setting the continuous recording and recording order at the beginning, and the first mechanical section (lB) or (1
When the recording in b) is completed, the second mechanism section (1b) or (la) whose operation is controlled to the recording pause is immediately controlled to the recording mode by canceling the pause, without any loading etc. The transition from the first tape to the second tape occurs quickly.

In addition, by providing the stop control circuit α, the rotation of the head cylinder is stopped when the first or second motor ON signal is cut off for the mechanism unit (lB) or (lb) that is controlling the operation during the recording pause. This allows tape protection and power savings.

In addition, in the above embodiment, two mechanical parts (la) and (lb
) for continuous recording of two video tapes, but the operation switches (5B) and (5b) are not connected to the mechanism section (
1a).

Of course, by changing the playback operation switch for (1b) and changing the setting switch (7) to a continuous playback setting switch, continuous playback of two video tapes can be performed.

Further, it is also possible to provide three or more mechanical sections, and to sequentially control each mechanical section to record or play back eight or more video tapes, so that eight or more video tapes can be continuously recorded or played back.
In this case as well, the transition from one tape to the next can be quickly performed by controlling the remaining mechanical sections other than the one currently recording or reproducing to a recording or reproducing pause.

Furthermore, a setting switch (7) and an order holding circuit (8) are provided.
) or stop control circuit α (8), (9
), C0, (la.

Of course, by providing one pair of each of C3 and (14), continuous recording and continuous reproduction of two or eight or more tapes can be performed.

〔Effect of the invention〕

As described above, according to the video tape recorder of the present invention, by mounting video tapes on each of a plurality of mechanical sections and setting the setting switch to continuous recording or continuous playback, it is possible to The remaining mechanisms are controlled to record or playback pauses, and each time one mechanism finishes recording or playing back a tape, the pause of the next mechanism is released and the mechanism starts recording the tape. Recording or playback starts, and by simple operation using one video tape recorder, continuous recording or fc/I'i continuous playback of multiple video tapes can be performed, and continuous tape playback from one tape to another can be performed. By quickly transitioning to , blanks in recording or reproduction can be prevented, and good continuous recording or reproduction can be performed.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the video tape recorder of the present invention, and FIG. 2 is a detailed wiring diagram of a portion of FIG. 1. (1a), (1b)...Recording/playback mechanism section, (8a), (
3b) ・=Tape end detection circuit, (4)...Tape end detection signal output control circuit, (7)...Continuous recording setting switch, (8)...Sequence retention circuit, (9)
. . . Operation signal output control circuit, C1O . . . command signal output control circuit, α gong . . . system controller.

Claims (1)

[Claims] (1) A plurality of recording/playback mechanisms, a continuous recording or continuous playback setting switch, an order holding circuit that maintains the set order of recording or playback of each of the abovementioned mechanisms, and recording or playback of each of the abovementioned mechanisms. tape end detection output means for detecting the tape end of each of the tapes and outputting a tape end detection signal of each tape, and a holding order of the order holding circuit and the tape end detection signal are input, and continuous recording is performed. Alternatively, at the initial stage of continuous playback settings, the first mechanism section is commanded to record or play, and the remaining mechanisms are commanded to record or playback pause, and each time the tape end detection signal is input, the next recording or playback is started. control command means for commanding the pose release of the mechanism section controlled by the
A video tape recorder comprising: a control section into which the recording pause or playback pause command and the pause cancellation command are input, and sequentially controls the operation of each of the mechanical sections to record or playback.