JPS63224058A - Operation control circuit for tape recorder - Google Patents

Abstract

PURPOSE:To simplify circuit constitution by inputting a switch signal to an input terminal for a stop, provided in an operation circuit to control the operation of the tape recorder of the other side, so that the respective operation of the tape recorder of the other side is prevented, when a signal to control the operation of the tape recorder of one side is outputted from a control circuit. CONSTITUTION:A first operation circuit 1 to switch the operation of a first tape recorder is provided with the respective input terminals 2-5 for reproduc tion, fast forwarding, rewinding and stops, and when the signal of a level L is inputted to the respective input terminals 2-5, a switch signals, corresponding to the input, is outputted. A second operation circuit 10 to switch the operation of a second recorder is provided with the similar respective input terminals 11-14, and when the signal of the level L is inputted to the respective input terminals 11-14, the switch signal, corresponding to the input, is outputted. When the signal to operate the control of the tape recorder of one side, is outputted from the control circuit, by inputting the switch signal to the input terminal for stopping, provided in the operation circuit to control the operation of the tape recorder of the other side, the operation of the tape recorder of the other side is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an operation control circuit for a tape recorder in which two tape recorders are installed in the same cabinet.

(B) Conventional technology Recently, a first tape recorder and a second tape recorder are built into the same cabinet.
Tape recorders called double tape recorders are in widespread use, and one example of such technology is disclosed in Japanese Patent Publication No. 57-47494.

Furthermore, as methods for switching the operation of a tape recorder, there are methods that use pressing force on an operation button, methods that use the rotational force of an electric motor, and methods that use the suction action of a plunger. Rotational force and plunge of electric motor
- As an operation circuit for switching the operation of a table recorder using the suction operation, for example,
There is one disclosed in Publication No. 7. Furthermore, some recent tape recorders are equipped with a remote control (hereinafter referred to as remote control) function that allows the operation of the tape recorder to be switched from a remote location.

(c) Problems to be Solved by the Invention In order to incorporate a remote control function into a tape recorder in which two tape recorders are incorporated, an operating circuit for electrically switching operations is incorporated into each of the two tape recorders. It is wasteful to provide two remote control devices to control the operation of each tape recorder. Also,
When selecting and operating two tape recorders using one remote control device, the switching signal accompanying the reception of the remote control signal is input to the operating circuit of the selected tape recorder, and cannot be input to the other operating circuit. Therefore, the present invention aims to provide an operation control circuit that improves this point.

(2) Means for Solving Problems The operation control circuit of the present invention includes a first operation circuit that operates when a first tape recorder operation button is operated and performs a switching operation corresponding to the operation button; 2. A second operation circuit that operates when an operation button for the tape recorder is operated and performs a switching operation corresponding to the operation button; a remote control signal receiving circuit that receives a remote control signal; and a second operation circuit that operates when a tape recorder operation button is operated; The control circuit inputs a switching signal to the first operating circuit and the second operating circuit based on the above-mentioned information, and outputs a signal for selecting the first tape recorder and the second tape recorder.

(*) Effect The present invention provides a switching signal to a stop input terminal provided in an operating circuit that controls the operation of the other tape recorder when a signal for controlling the operation of one tape recorder is output from the control circuit. By inputting one tape recorder, the other tape recorder is prevented from operating.

(F) Embodiment The illustrated circuit is an embodiment of the operation control circuit of the present invention. In the figure, <1) is a first operation circuit for switching the operation of the first tape recorder, and a playback input Terminal (
2), input terminal for fast forwarding (3), input terminal for rewinding (4)
) and a stop input terminal (5), and when an L (low) level signal is input to each input terminal, it is configured to output a switching signal corresponding to the input.

Reference numeral (6) is a regeneration switch that is pressed closed during regeneration operation and is self-returning, and is connected between the regeneration input terminal (2) and ground. Reference numeral (7) is a fast-forwarding switch that is pressed closed during a fast-forwarding operation and is self-returning, and is connected between the fast-forwarding input terminal (3) and ground. Reference numeral (8) is a rewinding switch that is pressed closed during rewinding operation and is self-returning, and is connected between the rewinding input terminal (4) and ground. (9) is a stop switch that is pressed and closed during a stop operation and is self-returning, and is connected between the stop input terminal (5>) and the ground. (10) is a switch for switching the operation of the second tape recorder. This is a second operation circuit that performs
, rewind input terminal (13) and stop input terminal (14)
), and when an L level signal is input to each input terminal, it is configured to output a switching signal corresponding to the input. Reference numeral (15) is a regeneration switch that is pressed closed during a regeneration operation and is self-returning, and is connected between the regeneration input terminal (11) and ground. Reference numeral (16) is a fast-forwarding switch that is pressed closed during a fast-forwarding operation and is self-returning, and is connected between the fast-forwarding input terminal (12) and ground. Reference numeral (17) is a rewinding switch that is pressed closed during rewinding operation and is self-returning, and is connected between the rewinding input terminal (13) and ground. (1
Reference numeral 8) is a stop switch that is pressed and closed during a stop operation and is self-returning, and is connected between the stop input terminal (14) and ground.

(19) is a remote control device that transmits a remote control signal according to remote control operation, and the first selection button (20) and the second button (20) are operated when switching the operation of the first tape recorder.
The second selection button (21), fast forward button (22), and rewind button (2
3), a play button (24) and a stop button (25). (26) is a remote control signal receiving circuit that receives a remote control signal transmitted from the remote control device (19);
> is a control circuit that outputs a switching signal based on the signal received by the remote control signal receiving circuit (26), and includes a playback output terminal (28), a fast forward output terminal (29), and a rewind output terminal ( 30), a stop output terminal (31) and a selection output terminal (32) for selecting the first tape recorder and the second tape recorder. A playback button (24) provided on the remote control device (19)
), fast forward button (22), rewind button (23) and stop button (
25) is operated, the playback output terminal (28) and fast forward output terminal (28) provided in the control circuit (27) are operated.
9), rewind output terminal (30) and stop output terminal (
31), an L level signal is output for a predetermined period of time. Further, when the first selection button (20) provided on the remote control device (19) is operated, the control circuit (2
At the same time, an L level signal is output to the selection output terminal (32) provided in the second selection button (2).
1) is operated, H(
The device is configured so that high level signals are output completely. In such a configuration, the control circuit (27
) is connected to the reproduction input terminal (2) of the first operation circuit (1) and the reproduction input terminal of the second operation circuit (10) via diodes (33) and (34). (
11), and the fast forward output terminal (29>) is connected to the first operating circuit (1) via the diode (3) and (36).
The rewind output terminal (30) is connected to the fast forward input terminal (3) of the second operating circuit (10) and the fast forward input terminal (12) of the second operation circuit (10), and the rewind output terminal (30) is connected to the first The rewinding input terminal (4) of the operation circuit (1) and the second
It is connected to the rewind input terminal (13) of the operation circuit (10), and the stop output terminal (31) is connected to the stop input terminal (1) of the first operation circuit (1) via diodes (39) and (40). 5) and the stop input terminal (1) of the second operation circuit (10)
4) is connected to. (41) is the control circuit (2
The input terminals are connected to the playback output terminal (28), fast forward output terminal (29) and rewind output terminal (30) provided in 7) through diodes (42), (43) and (44). A first NAND circuit is connected, and when an L level signal is output from the playback output terminal (28), fast forward output terminal (29), and rewind output terminal (30), an H level signal is output to the output terminal. is connected to output the signal. (45) has one input terminal connected to the selection output terminal (32) provided in the control circuit (27), and the other input terminal connected to the first NAN.
The second NAN connected to the output terminal of the D circuit (41)
D circuit, the output terminal of which is the first operating circuit (1)
A diode (
46). (47) has an input terminal connected to the selection output terminal (32) provided in the control circuit (27), and the selection output terminal (32)
2) 3rd N that inverts the level of the signal output to
AND circuit (48) has one input terminal connected to the first NA
A fourth NAND circuit is connected to the output terminal of the ND circuit (41), and the other input terminal is connected to the output terminal of the third NAND circuit (47), and the output terminal is connected to the output terminal of the third NAND circuit (47). and said second operation circuit (
10) is connected to a stop input terminal (14) provided in the terminal (10). The operation control circuit of the present invention is constructed as described above, and the operation of this circuit will be explained next.

When a power switch (not shown) is closed, power is supplied to each circuit and an L level signal is output to the selection output terminal (32) provided in the control circuit (27). In such a state, if you operate the Sagi playback button, fast forward button, and rewind button that are provided to change the operation of the first tape recorder, the playback switch (
6), fast forward switch (7) and rewind switch (
8) is closed and an L level signal is input to the playback input terminal (2), fast forward input terminal (3) and rewind input terminal (4) provided in the first operation circuit (1). Ru. As a result, a switching signal corresponding to each input is output from the first operating circuit (1>), and the first tape recorder is switched to each operating state.Also, when the first tape recorder is in each operating state, the stop button is pressed. When operated, the stop switch (9)
is closed, and an L level signal can be input to the stop input terminal (5). As a result, a switching signal for stopping is output from the first operating circuit (1), and the first tape recorder is returned to the stopped state. Although the switching operation of the first tape recorder is performed in this manner, the operation of the second tape recorder can also be performed in the same manner, so a description thereof will be omitted.

As described above, operations are performed when operating the operation buttons provided on the main body of the tape recorder.Next, operation switching using the remote control will be explained. Remote control device (19
) When a first selection button (20) provided in the remote control device (19) is operated, a signal corresponding to the button is outputted from the remote control device (19). The signal transmitted from the remote control device (19) is received by the remote control signal receiving circuit (26) and then applied to the control circuit (27), and is applied to the selection output terminal (27) provided in the control circuit (27). 32> is in a state where the L level signal is no longer output.In such a state, if the playback button (24) provided on the remote control device (19) is operated, the playback operation is activated from the remote control device (19). The signal transmitted from the remote control device (19) is received by the remote control signal receiving circuit (26) and then applied to the control circuit (27). An L level signal is output for a predetermined period of time to the reproduction output terminal (28) provided at the reproduction output terminal (28).When the L level signal is output to the reproduction output terminal (28), the first operation circuit An L level signal is input to the reproduction input terminals (2) and (11) provided in the second operation circuit (10).
28), an L level signal is input to the input terminal of the first NAND circuit (41), and therefore an H level signal is output to its output terminal. Since an L level signal is output to the selection output terminal (32) provided in the control circuit (27), the output terminal of the third NAND circuit (47) to which this signal is input to the input terminal is An H level signal is being output. Therefore, the first NAND circuit (41) and the third NAND circuit (
A fourth NAND circuit (47) whose input signal is the output signal of
48), the L level signal is output to the output terminal of
A level signal is input to a stop input terminal (14) provided in the second operation circuit (10). Therefore, the reproduction output terminal (28) provided in the control circuit (27)
) is output to the second operating circuit (10).
Even if the signal is input to the playback input terminal (11) provided in the second operating circuit (10), since an L level signal is also input to the stop input terminal (14) during that time, the second operation circuit (10) performs the playback operation. No switching signal is output for this purpose, and the second table fooder is in a stopped state. On the other hand, the second NAN
The control circuit (2) is connected to one input terminal of the D circuit (45).
Since the L level signal output to the selection output terminal <32) of 7) is input, the first NAND circuit (
41) Even if an H level signal is output to the output terminal of
An L level signal is never output to the output terminal of the NAND circuit (45). Therefore, upon reception of the remote control signal transmitted from the remote control device (19), the control circuit (
When an L level signal is output to the reproduction output terminal (28) of 27), a switching signal for performing a reproduction operation is output from the first operating circuit (1), and the first tape recorder enters the reproduction operation state. . When the stop button (25) provided on the remote control device (9) is operated during such a playback operation state, a remote control signal for stopping is output, and the reception operation and control circuit of the remote control signal receiving circuit (26) is activated. (27)
As a result of the control operation, an L level signal is output to the stop output terminal (31) for a predetermined period of time. The stop output terminal (31
), the signal can be input to the stop input terminal (5) of the first operating circuit (1), so the first
The operation circuit (1) performs a stop operation and the first
The tape recorder is returned from the playback state to the stop state. As described above, the playback and stop operations of the first tape recorder are performed using the remote control, but since the fast forwarding and rewinding operations can also be performed using the remote control in the same manner, a description thereof will be omitted.

The operation of switching the first tape recorder using the remote control is performed as described above. Next, the operation of switching the second tape recorder using the remote control will be explained. Remote control device (
When the second selection button (21> provided on the remote control device (19) is operated, a signal corresponding to the button is output from the remote control device (19). The signal transmitted from the remote control device (19) is a remote control signal. After being received by the receiving circuit (26), the voltage is applied to the control circuit (27), and the control circuit (27)
) is in a state where an H level signal is output to the selection output terminal (32) provided at the terminal (32). When in such a state, the playback button (24) provided on the remote control device (19) is pressed.
), a signal for performing a playback operation is transmitted from the remote control device (19). The remote control device (19)
The signal that has been successfully transmitted is sent to the remote control signal receiving circuit (26).
After being received by the control circuit (27), the signal is applied to the control circuit (27), and as a result, an L level signal is output for a predetermined period of time to the reproduction output terminal (28) provided in the control circuit (27).

When an L level signal is output to the reproduction output terminal (28), the signal is output to the reproduction input terminals (2) and (11) provided in the first operation circuit (1) and the second operation circuit (10). L
A level signal is input. Further, when an L level signal is output to the reproduction output terminal (28), the second NAND
Since an L level signal is input to the input terminal of the circuit (41), an H level signal is output to its output terminal. Since the selection output terminal (32) provided in the control circuit (27) is unable to output an H level signal, an L level signal is output to the output terminal of the second NAND circuit (45). An L level signal is input to the stop input terminal (5) provided in the first operating circuit (1). Therefore, the L level signal output to the reproduction output terminal (28) provided in the control circuit (27) is input to the reproduction input terminal (2) provided in the first operating circuit (1). Even if the signal is at L level, the stop input terminal (5) is also inputted during that time, so the first operation circuit (1) does not output a switching signal for performing the regeneration operation, and the first operation circuit (1) The tape recorder is stopped. - A third NAN that receives as input the H level signal output to the selection output terminal (32) provided in the force control circuit (27).
An L level signal is output to the output terminal of the D circuit (47). Therefore, even if an H level signal is output to the output terminal of the first NAND circuit (41), an L level signal is not output to the output terminal of the fourth NAND circuit (48). Therefore, when an L level signal is output to the playback output terminal (28) of the control circuit (27) upon reception of the remote control signal transmitted from the remote control device (19), the second operating circuit (10) A switching signal for performing the reproducing operation is output, and the second table recorder enters the reproducing operation state.If the stop button (25) provided on the remote control device (19) is operated while in the reproducing operation state, it will stop. A remote control signal is output for a predetermined period of time, and a signal at L level is output for a predetermined period of time to the stop output terminal (31) by the reception operation of the remote control signal receiving circuit (26) and the control operation of the control circuit (27). L to the output terminal (31) for
When a level signal is output, the signal is transferred to the second operating circuit (1
0), the second operating circuit (10) performs a stopping operation.
The tape recorder is returned from the playback state to the stop state. As described above, the playback and stop operations of the second tape recorder are performed using the remote control, but since the fast forwarding and rewinding operations can also be performed using the remote control in the same manner, a description thereof will be omitted.

In this embodiment, the switching operation of the first operating circuit (1) and the second operating circuit (10), which are provided to control the operations of the first tape recorder and the second table recorder, is controlled by L.
Although this is done using a high level signal, it is also possible to use an H level signal. Further, although the operation switching for recording operation and temporary stop is omitted, it is of course possible to incorporate such an operation switching function.

(G) Effects of the Invention The operation control circuit of the present invention is a stop control circuit provided in an operation circuit that controls the operation of the other tape recorder when a signal for controlling the operation of one tape recorder is output from the control circuit. By inputting a switching signal to the input terminal, each operation of the other tape recorder is prevented from being performed, and since it is done in this way, when two tape recorders are selected and operated using one remote control device, it is possible to This has the advantage that it is not necessary to provide a large number of switches for inputting switching signals for each operation into only one of the two operating circuits, and the circuit configuration is simplified.

[Brief explanation of the drawing]

The illustrated circuit is one embodiment of the operation control circuit of the present invention. Explanation of main drawing numbers (1)...First operating circuit, (2)(11)...Input terminal for playback, (3)(12)...Input terminal for fast forwarding, (4)(1a) )...Input terminal for rewinding, (5
)(14)...Stop input terminal, (6)(15)・
... playback switch, (7) (16) ... fast forward switch, (8) (17) ... rewind switch,
(9) (18)...stop switch, (10)...
・Second operation circuit, (19)...remote control device, (
26)...Remote control signal receiving circuit, (27)...
Control circuit, (28)... Output terminal for reproduction, (29
)... Output terminal for fast forwarding, (30)... Output terminal for rewinding, (31)... Output terminal for stopping, (32)...
...Output terminal for selection.

Claims (1)

[Claims] (1) In a tape recorder in which a first tape recorder and a second tape recorder are installed in the same cabinet, when the operation button for the first tape recorder is operated, it operates and performs a switching operation corresponding to the operation button. a first operation circuit; a second operation circuit that operates when a second tape recorder operation button is operated and performs a switching operation corresponding to the operation button; a remote control signal receiving circuit that receives a remote control signal; a control circuit that inputs a switching signal to the first operating circuit and the second operating circuit based on a signal obtained from the receiving circuit, and outputs a signal for selecting the first tape recorder and the second tape recorder; When a signal for controlling one tape recorder is output from the control circuit, a switching signal is input to a stop input terminal provided in an operating circuit for controlling the operation of the other tape recorder. Operation control circuit for a tape recorder.