JPS5846774B2 - tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus that can easily locate a desired position on a tape.

Generally, the method of finding the desired position on the tape is to perform fast-forwarding and rewinding operations while looking at the scale on the counter provided in the tape recorder. Because of the high speed, it is difficult to distinguish the scale of the first digit of the counter, and therefore, it is necessary to repeat such fast-forwarding and rewinding operations two or three times, which is inconvenient.

Also, a device has been developed in which a switch is provided on the counter, and when the scale of the counter reaches a predetermined value, the switch cancels the fast forwarding or rewinding operation, but in such a device, the counter does not indicate the predetermined scale. Since it is designed to operate only occasionally, if there are several desired parts, it is necessary to perform the above-mentioned operation, which is inconvenient.

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a device that can extremely easily find a desired portion of a tape.

An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawing is a block diagram showing one embodiment of the present invention.

In the same figure, 1, 2, 3, 4, 5 and 6 are recordings, respectively.
Play, rewind, fast forward, pause and stop operation buttons, 7
8 is a control circuit that switches the operating state of the tape recorder in accordance with each operation; 8 is a plunger that operates as a suction during a playback operation to put the tape recorder in a playback state; 9 is a capstan electric motor that rotates the capstan; 10 is a Reel electric motor for rotationally driving the rewinding and take-up reel shafts, 11
12 is a rotation direction control circuit that controls the rotation direction of the reel electric motor 100, and 12 is a rotation speed control circuit that controls the rotation speed of the reel electric motor 10.

Reference numeral 13 denotes a tape positioning operation button that is operated during a tape positioning operation, and 14 denotes a tape running control means that becomes operable when the positioning operation button 13 is operated.

15 is an adjustment legitimate child constituting the tape running control means 14;
Reference numeral 16 denotes a variable resistor variable by the adjusting child 15, to which both positive and negative voltages are applied and whose midpoint is grounded.

Reference numeral 17 denotes a voltage detection circuit that detects the voltage guided by the slider of the variable resistor 16 and controls the rotation speed and rotation direction of the reel motor 10.

Reference numeral 18 denotes an induced voltage detection circuit that detects an induced signal from the human body when the user touches the adjusting child 15, and causes the tape running control means 14 to operate only during an adjusting operation.

Reference numeral 19 denotes a selection circuit that prevents the signal from the tape running control means 14 from being applied to the control circuit 7 and the voltage detection circuit 17 in the recording state, and the blocking operation is released when a temporary stop operation is performed. It is composed of L・ru.

The circuits described above are related as shown.

The present invention is constructed as described above, and its operation will be explained next.

First, a normal operation in which the tape positioning operation button 13 is not operated will be explained.

In this state, the voltage detection circuit 17 that controls the rotation speed and rotation direction of the reel motor 100 is in an inoperative state, so the rotation direction control circuit 11 and the rotation speed control circuit 12 are in a state controlled by the control circuit 7.

From this state, the user can press the recording operation button 1 and the playback operation button 2.
, when the rewind operation button 3 and the fast forward operation button 4 are operated appropriately, the control circuit 7 performs operations corresponding to each operation, and puts the reel electric motor 10, capstan electric motor 9, and plunger 8 in a state suitable for each operation. Each operation of the tape recorder is configured as follows.

Also, if you operate the stop operation button 6 while in each operating state, each operation is canceled and the tape recorder returns to the stopped state, and if you operate the pause operation button 5 while in the recording or playback state, the take-up reel shaft At the same time, the winding force is released, and the capstan and the pinch roller are disengaged from each other, and the tape recorder becomes temporarily stopped.

Next, the operation when the tape positioning operation button 13 is operated while the tape recorder is in each state will be described.

1. Playback state When the tape recorder is in the playback state and the tape positioning operation button 13 is operated, the tape running control means 14 becomes operational, but does not operate until the user touches the adjustment heir 15.

When the user touches the adjustment heir 15, the tape running control means 1
4 is activated, the signal is applied to the control circuit 7 through the positioning operation button 13 and the selection circuit 19, and the reproduction state of the tape recorder is canceled.

When the slider of the variable resistor 16 is at the midpoint, its potential is zero, so the tape is not allowed to run and is stopped.

In this state, when the adjusting child 15 is adjusted and the slider is moved to the positive potential side, the voltage detection circuit 17 detects the positive potential and controls the rotational direction control circuit 11 and the rotational speed control circuit 12 to control the tape. Make it fast forward.

Also, when the slider is moved to the negative potential side, the voltage detection circuit 1
T detects the negative potential and controls the rotational direction control circuit 11 and rotational speed control circuit 12 to rewind the tape.

The running speed of the tape in this state increases as the positive and negative potentials increase toward the positive and negative sides, respectively.

Also, no matter which position the slider is in, the user can adjust the
When you release the button 5, the tape recorder returns to playback mode.

2. Recording state When the tape positioning operation is performed in the recording state, the selection circuit 19 prevents the application of the control signal from the tape running control means 14 to the control circuit I and the voltage detection circuit 13, and the tape recorder stops recording. Continue working.

3. Fast-forwarding and rewinding states When the adjustment heir 15 is operated in these fast-forwarding and rewinding states, a control signal from the tape running control means 14 is applied to the control circuit 7 and the voltage detection circuit 17, resulting in the operation described in the section of the playback state. will be carried out.

In this state, when the user releases the adjustment heir 15, the tape recorder returns to the stopped state.

4. Stopped state When the adjusting head 15 is operated in the stopped state, the tape is fast-forwarded or rewound depending on the position of the slider of the variable resistor 16, and when the adjusting head 15 is released, the tape recorder returns to the stopped state.

5. Pause state First, in the pause state in the playback state, the tape is fast-forwarded or rewound in accordance with the operation of the adjustment heir 15 as described above, and when the adjustment heir 15 is released, the tape returns to the paused state.

Furthermore, when a pause operation is performed in the recording state, the blocking of the selection circuit 190 control signal from being applied to the control circuit 7 and the voltage detection circuit 17 due to the recording operation is canceled.
As a result, the tape is fast-forwarded or rewound as the adjusting heir 15 is operated.

When the tape recorder is released from the adjusting child 15, the tape recorder returns to the paused state, and when the pause operation is released, the recording operation starts from that position.

In this embodiment, the tape running is controlled only while the human body guidance signal obtained from the adjusting child 15 constituting the tape running control means 14 is being detected, but such a function is not necessarily required. It's not a thing.

As explained above, in the present invention, the running of the tape is continuously changed from a fast forward state to a rewind state and from a rewind state to a fast forward state by the tape positioning operation, so that the tape can be positioned at a desired position. Not only can you easily find the information, but it also prevents you from switching to the positioning mode even if you perform the positioning operation from the recording mode, which prevents erroneous operations such as failing to record important information. I can do it.

[Brief explanation of the drawing]

The illustrated circuit is a block diagram showing one embodiment of the device of the present invention. Explanation of main drawing numbers, 7... Control circuit, 11...
... Rotation direction control circuit, 12 ... Rotation speed control circuit, 13 ... Tape positioning operation button, 1
4... Tape running control means, 15...
Adjustment legitimate child, 17... Voltage detection circuit, 18...
...Induced voltage detection circuit, 19...Selection circuit.

Claims (1)

[Claims] 1. In a tape recorder equipped with operation buttons for recording, playback, fast forward, rewind, and stop, a control circuit that switches the tape recorder to each operating state by operating each of the operation buttons is provided separately from each of the operation buttons. a tape positioning operation button which is operated at the time of positioning operation; a tape travel control means which becomes operable by operation of the tape positioning operation button; and a signal obtained from the tape travel control means. tape running switching means for continuously changing the running of the tape from a fast forwarding state to a rewinding state and from a rewinding state to a fast forwarding state; and a tape running switching means provided between the tape running control means and the tape running switching means; It is characterized by a selection circuit that controls the operation of applying a signal from the tape running control means to the tape running switching means, and the operation of the selection circuit prevents switching from the recording operation state to the positioning operation. tape recorder with