JPH04251470A - Recording and reproducing device - Google Patents

Abstract

PURPOSE:To more reduce the energy consumption of this recording and reproducing device in a fast forward mode or a rewinding mode. CONSTITUTION:At this recording and reproducing device to be turned to a recording mode, reproducing mode, fast forward mode to fast forward a recording medium, or rewinding mode to rewind the recording medium by operating a recording manipulator, reproducing manipulator, fast forward manipulator or rewind manipulator, a signal processing means to process recorded signals and regenerative signals or the like is controlled to an OFF state in the fast forward mode or the rewind mode not to process the recorded signals and the regenerative signals, and a travel driving means to travel the above- mentioned recording medium is controlled to an ON state.

Description

[Detailed description of the invention]

0001

[Table of Contents] The present invention will be explained in the following order. Industrial application field Conventional technology Problems to be solved by the invention Means for solving the problem (Figs. 1 and 2) Effect (Fig. 2
) Example (Figures 1 and 2) Effects of the invention

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording/reproducing apparatus, and is suitable for application to, for example, a small rotary head type digital audio tape recorder.

0003

2. Description of the Related Art Conventionally, in this type of digital audio tape recorder (DAT), in order to shorten the time for fast forwarding and rewinding the magnetic tape, the motor for driving the magnetic tape is The maximum power output is applied to run the magnetic tape at high speed.

0004

[Problem to be solved by the invention] However, this type of D
AT generally maintains a state in which power output is supplied to signal processing systems such as recording circuits and playback circuits even in fast forward mode or rewind mode, and the power consumption of this signal processing system is Due to the large amount of power, there is a problem that, especially in so-called portable DATs using batteries as a power source, sufficient power cannot be supplied to the motor during the fast forward mode or rewind mode.

[0005] Particularly when the battery is exhausted and the power supply voltage has dropped, if you try to execute fast forward mode or rewind mode while power output is still being supplied to the signal processing system, the power supply to the motor will be interrupted. There was a problem where the power supply voltage dropped and the motor could not be rotated.

Furthermore, if power is continued to be supplied to the signal processing system during fast forward mode or rewind mode in which the signal processing system does not require operation, there is a problem that the life of the battery is shortened.

The present invention has been made in consideration of the above points, and it is an object of the present invention to propose a recording/reproducing apparatus that can further reduce power consumption in fast forward mode and rewind mode.

[0008]

[Means for Solving the Problems] In order to solve the problems, in the present invention, the recording operator 13A, the playback operator 13B, the fast forward operator 13C, or the rewind operator 1
A recording and reproducing device 10 that enters a recording mode, a reproducing mode, a fast forward mode for fast forwarding a recording medium, or a rewinding mode for rewinding a recording medium by operating 3D.
, the fast forward operator 13C or the rewind operator 13D
When the fast forward mode or rewind mode is entered by operating the , the signal processing means 15 and 16 that process the recording signals S5 and S8 and the reproduction signals S6 and S9 are turned off and the recording medium is run. The driving means 17 and 21 are controlled to be in the on state.

[0009]

[Function] Signal processing of recording signals S5, S8 and reproduction signals S6, S9, etc. in mode states such as fast forward mode and rewind mode where signals such as recording signals S5, S8 and reproduction signals S6, S9 are not actually processed. By controlling the drive means 17 and 21 for driving the recording medium to be in the on state while controlling the means 15 and 16 to be in the off state, it is possible to further reduce power consumption in the fast forward mode and rewind mode. Sufficient power can be supplied to the travel drive means 17 and 21.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, 10 indicates a DAT as a whole, which includes a recording key 13A, a playback key 13B, and a fast forward key 13.
C. A rewind key 13D and a stop operation key 13E for turning off these keys are connected to the system control circuit 12, and the recording circuit 15, playback circuit 16 and magnetic tape drive motor 21 are activated according to the operation of each key. It is designed to control the

That is, when the DAT 10 enters the recording mode by turning on the recording key 13A connected to the system control circuit 12, the system control circuit 12 sets the motor control signal S3 sent to the motor control circuit 17 to the "H" level. At the same time, a control signal is sent to drive the magnetic tape drive motor 21 at the rotational speed in the recording mode, and the motor control circuit 17 receives the motor control signal S3 and the power output VB of the power battery (+B). By sending the drive signal S7 to the motor 21 based on the above, the motor 21 is driven to rotate at the rotational speed for the recording mode.

At the same time, the system control circuit 12 sets the recording circuit control signal S1 sent to the recording circuit 15 to "H".
By starting up the recording circuit 15 to the level, the recording circuit 15 inputs the power output VCC outputted from the power supply battery (+B) via the DC/DC converter 19 and turns on, and the input audio signal input from the audio input section 22 The signal S5 is input and subjected to predetermined signal processing to be sent to the magnetic head 24 as a recording signal S8.

Also, at this time, the system control circuit 12 lowers the regeneration circuit control signal S2 sent to the regeneration circuit 16 to the "L" level, so that the regeneration circuit 16 uses the power source battery (
+B) via the DC/DC converter 19, it enters an OFF state and is controlled to a state in which reproduction signal processing is not executed.

On the other hand, when the playback key 13B connected to the system control circuit 12 is turned on and enters the playback mode, the system control circuit 12 sets the motor control signal S3 sent to the motor control circuit 17 to the "H" level. At the same time as starting up, a control signal is sent to rotate the motor 21 at the rotational speed in the regeneration mode, and thereby the motor control circuit 17 receives the motor control signal S3 and the power source battery (+B).
By sending a drive signal S7 to the motor 21 based on the power supply output VB, the motor 21 is rotationally driven at the rotational speed for the reproduction mode.

At the same time, the system control circuit 12 sets the reproduction circuit control signal S2 to the reproduction circuit 16 to "H".
By raising the level, the reproducing circuit 16 inputs the power output VCC outputted from the power supply battery (+B) via the DC/DC converter 19 and turns on, and the reproducing circuit 16 receives the reproducing signal S9 inputted from the magnetic head 24. After inputting the signal and subjecting it to predetermined signal processing, it is sent to the audio output unit 23 as an output audio signal S6.

Also, at this time, the system control circuit 12 lowers the recording circuit control signal S1 sent to the recording circuit 15 to the "L" level, so that the recording circuit 15 is powered by the power battery (
+B) via the DC/DC converter 19, it enters an OFF state and is controlled to a state in which recording signal processing is not executed.

On the other hand, when the fast-forward key 13C connected to the system control circuit 12 is turned on and enters the fast-forward mode, the system control circuit 12 switches the motor control circuit 1
At the same time, the motor control signal S3 sent to the motor control circuit 17 is raised to the "H" level, and a control signal is sent to rotate the motor 21 at the rotational speed in the fast forward mode. Power battery (
By sending the drive signal S7 to the motor 21 based on the power supply output VB of +B), the motor 21 is rotationally driven at a high rotational speed for the fast forward mode.

At the same time, the system control circuit 12 sets the recording circuit control signal S1 to the recording circuit 15 to "L".
By lowering the voltage to the level, the recording circuit 15 enters an OFF state without inputting the power output VCC outputted from the power supply battery (+B) via the DC/DC converter 19, and is controlled to a state in which recording signal processing is not executed. Ru.

Also, at this time, the system control circuit 12 lowers the regeneration circuit control signal S2 sent to the regeneration circuit 16 to the "L" level, so that the regeneration circuit 16 uses the power battery (
+B) via the DC/DC converter 19, it enters an OFF state and is controlled to a state in which reproduction signal processing is not executed.

Therefore, by turning off the recording circuit 15 and the reproducing circuit 16 so that the power output VCC is not supplied, the power supply battery (+B) is prevented from being consumed accordingly.

On the other hand, when the rewind key 13D connected to the system control circuit 12 is turned on and enters the rewind mode, the system control circuit 12 switches the motor control circuit 1 to the rewind mode.
The motor control circuit 17 raises the motor control signal S3 to the "H" level, and sends out a control signal to rotate the motor 21 at the rotational speed in the rewind mode. and power supply battery (
By sending a drive signal S7 to the motor 21 based on the power supply output VB of +B), the motor 21 is driven to rotate at a high rotational speed for the rewind mode.

At the same time, the system control circuit 12 sets the recording circuit control signal S1 sent to the recording circuit 15 to "L".
By lowering the voltage to the level, the recording circuit 15 enters an OFF state without inputting the power output VCC outputted from the power supply battery (+B) via the DC/DC converter 19, and is controlled to a state in which recording signal processing is not performed. Ru.

Also, at this time, the system control circuit 12 lowers the regeneration circuit control signal S2 sent to the regeneration circuit 16 to the "L" level, so that the regeneration circuit 16 uses the power battery (
+B) via the DC/DC converter 19, it enters an OFF state and is controlled to a state in which reproduction signal processing is not executed.

Therefore, by turning off the recording circuit 15 and the reproducing circuit 16 so that the power supply output VCC is not supplied, the power supply battery (+B) is prevented from being consumed accordingly.

On the other hand, when the stop operation key 13E connected to the system control circuit 12 is turned on and the stop mode is entered, the system control circuit 12 sets the motor control signal S3 sent to the motor control circuit 17 to the "L" level. By turning down the motor control circuit 17, the motor control circuit 17 is controlled to a state in which the power output VB of the power supply battery (+B) is not inputted, and the driving of the motor 21 is stopped.

At the same time, the system control circuit 12 sets the recording circuit control signal S1 sent to the recording circuit 15 to "L".
By lowering the voltage to the level, the recording circuit 15 enters an OFF state without inputting the power output VCC outputted from the power supply battery (+B) via the DC/DC converter 19, and is controlled to a state in which recording signal processing is not performed. Ru.

Also, at this time, the system control circuit 12 lowers the regeneration circuit control signal S2 sent to the regeneration circuit 16 to the "L" level, so that the regeneration circuit 16 uses the power source battery (
+B) via the DC/DC converter 19, it enters an OFF state and is controlled to a state in which reproduction signal processing is not executed.

In the above configuration, the DAT 10 receives the recording circuit control signal S1 and the reproduction circuit control signal S as shown in FIG.
2 and motor control signal S3 in accordance with each key operation, the recording circuit 15 operates only when the recording key 13A is turned on and is in the recording mode REC (or recording pause mode state PAUSE). At the same time, the playback circuit 16 is turned on only when the playback key 13B is turned on and the playback mode state PB (or playback pause mode state PAUSE) is reached.

Therefore, in the fast forward mode FF when the fast forward key 13C is turned on, and in the rewind mode REW when the rewind key 13D is turned on, the recording circuit 15 and the reproducing circuit 16 are controlled to be in the off state. By doing so, consumption of the power battery (+B) can be prevented by this amount.

In addition, in the fast forward mode and the rewind mode, in order to rotate the magnetic tape drive motor 21 at high speed, the maximum power output VB is applied to the motor 21.
However, even in this case, by turning off the recording circuit 15 and the reproducing circuit 16, the output VB of the power battery (+B) can be effectively used for driving the motor.

Therefore, even if, for example, the power supply battery (+B) is exhausted and the power supply voltage is lowered, power output is supplied to the recording circuit 15 and the reproduction circuit 16 when executing the fast forward mode and the rewind mode. Instead, the power output can be used to drive a motor, and the lower limit voltage value of the power battery that can execute the fast forward mode and the rewind mode can be further lowered.

According to the above configuration, the signal processing system such as the recording circuit and the reproducing circuit is controlled to be in an OFF state in a mode state such as a fast forward mode or a rewind mode in which a recording signal or a reproduced signal is not actually processed. By doing so, it is possible to further reduce power consumption and extend battery life.

Incidentally, by further lowering the lower limit voltage value of the power supply battery that can execute the fast forward mode and the rewind mode, even when the power supply voltage value has decreased due to battery life etc., the rotation of the motor can be maintained. Disability can be avoided as much as possible.

[0035] In the above-mentioned embodiment, the present invention is
Although the case where the present invention is applied to an AT has been described, the present invention is not limited thereto, and can be widely applied to various other recording and reproducing devices, such as a video tape recorder (VTR), for example.

[0036]

As described above, according to the present invention, in mode states such as fast forward mode and rewind mode where signals such as recording signals or reproduction signals are not actually processed, the signal processing of the recording circuit, the reproduction circuit, etc. By controlling the system to be in an off state, it is possible to realize a recording/reproducing apparatus that can further reduce power consumption.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a recording/reproducing apparatus according to the present invention.

FIG. 2 is a chart showing control states of a signal processing system and a motor by key operations.

[Explanation of symbols]

10...DAT, 12...System control circuit, 13A...
...record key, 13B...playback key, 13C...fast forward key, 13D...rewind key, 13E...stop operation key, 15...recording circuit, 16...playback circuit, 17...motor control circuit, +B ...Power battery, 21...Motor.

Claims (1)

[Claims] Claim 1: A recording mode, a playback mode, a fast-forward mode in which the recording medium is fast-forwarded, or a rewind mode in which the recording medium is rewound by operating a recording operator, a playback operator, a fast-forward operator, or a rewind operator. In the recording and reproducing apparatus, when the fast forward mode or the rewind mode is entered by operating the fast forward operator or the rewind operator, the signal processing means for processing the recording signal and the playback signal is turned off. What is claimed is: 1. A recording/reproducing apparatus characterized in that a running driving means for causing the recording medium to run is controlled to be in an on state.