JPH0426985Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a double cassette deck type magnetic tape recording device having first and second decks into which cassette tapes can be respectively loaded. Therefore, the present invention relates to a device that causes a magnetic tape recording device to perform a recording or reproducing operation when the power of the magnetic tape recording device is turned on.

Some magnetic tape recording devices are equipped with an operation mode setting switch to set the recording or playback mode in advance so that recording or playback starts after a time set by a timer.
In a conventional double cassette deck type magnetic tape recording device, the timer is set so that recording and playback operations are performed for only one deck when the power to the magnetic tape device is turned on. Therefore, the cassette tape could only be recorded or played back on one deck, and recording or playback could not be performed if only the other deck was loaded with a cassette tape.

SUMMARY OF THE INVENTION An object of the present invention is to provide a double cassette deck type magnetic tape recording device having a configuration that allows recording or playback operation to be performed after a time set by a timer on either deck.

The structure of the present invention will be explained with reference to FIG. 1. The present invention is provided in common with the first and second decks, and is set by a timer 10 that is built in the magnetic tape recording device or provided separately. an operation mode setting switch 1 which is set in advance so that a recording or playback command can be output when the power supply section 9 is turned on after a period of time; First and second cassette loading detection switches 2 and 3 are provided for detecting that each deck is loaded with a cassette tape, and are provided corresponding to each of the first and second decks, respectively. Based on the output of the cassette loading detection switch, the output of the operation mode setting switch is set to the first and second levels for the deck in which the cassette tape is loaded.
The first deck operation command means 4 operates with priority over the second deck operation command means 5 (the first deck operation command means 4 If the output d is on, the output e of the second deck operation command means 5 is inhibited from turning on by means such as inhibiting the output e.

The present invention will be explained below using a specific example shown in FIG. In Figure 2, operating mode setting switch 1
If the user sets the movable contact to the fixed contact f side in advance, the output will be output when the power supply section 9 is turned on after the time set in the timer 10 built into the magnetic tape recording device or installed separately. A positive signal is output to c to issue a recording command, if the fixed contact is moved to the g side, a negative signal is generated and a playback command is issued, and if it is set to neutral, it remains inactive.
Instead, modifications such as separately providing a recording command switch and a reproduction command switch are also possible.
The first and second cassette loading detection switches 2 and 3 are conventionally provided mechanical contact switches that are turned on in response to a cassette loading input. 8 is a microcomputer that realizes the first and second deck operation command means 4 and 5;
It is also possible to use logic circuits instead. The first and second deck control sections 6 and 7 are
It includes drive parts and amplifiers for plungers (not shown) for playback, high speed, and rewinding, and the plungers can be operated in combination in accordance with command signals from the microcomputer 8 to perform playback, high speed, and rewinding. It enables operations such as recording, cueing, and reviewing.

FIG. 3 is a flowchart for explaining the operation of the present invention, and the operation of the present invention is started when the power supply section 9 is turned on after the time set in the timer 10 (10). If output c of operation mode setting switch 1 instructs recording (if c is a positive signal), first refer to output a of first cassette loading detection switch 2, and if this is on, , regardless of the output b of the second cassette loading detection switch 3, the recording operation is commanded to the first deck control section 6, and the second
The deck control section 7 remains inoperative (11, 12, 13).

On the other hand, if the output a of the first cassette loading detection switch 1 is off, the output b of the second cassette loading detection switch 3 is referred to, and if it is on, the second deck control section 7 is caused to perform the recording operation. (14, 15). When the recording operation of the second deck is completed, or when the output b of the second cassette loading detection switch 3 is also off, the operation is stopped (16).

Also, if the output c of the operation mode setting switch 1 instructs playback (if c is a negative signal), first refer to the output a of the first cassette loading detection switch 2, and if this is on, , second
Regardless of the output b of the cassette loading detection switch 3, the first deck control section 6 is commanded to perform the playback operation, and the second deck control section 7 remains inoperative (11, 17, 18).

On the other hand, if the output a of the first cassette loading detection switch 3 is off, the output b of the second cassette loading detection switch 3 is referred to, and if it is on, the second deck controller 7 is instructed to perform a reproducing operation. let (19, 20). If the output b of the second cassette loading detection switch 3 is also off, the operation is stopped (16).

If the output c of the operation mode setting switch 1 does not instruct recording or playback (if c is a ground or floating signal), nothing is done.

After the recording operation for the first deck is completed, the process moves to the subsequent process (21), which includes a case where the process moves to step 14 to record the cassette tape loaded in the second deck, It may stop. In addition, the process (22) after the first deck regeneration operation may shift to the second deck regeneration operation or stop. In some cases, a relay play is performed in which the operation moves on, and in other cases, a recorded portion of this playback operation is searched for at high speed and played back.

As described above, according to the present invention, in a double cassette deck type magnetic tape recording device, if a cassette tape is loaded in either deck, the power to the magnetic tape device is turned on by the timer. Since recording or playback operations can be performed when recording, it is easier for the user to use the device.

Further, when cassette tapes are loaded into two decks, recording or playback operations can be performed on both tapes depending on the subsequent processing method.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a circuit diagram showing a specific example thereof, and FIG.
The figure is a flowchart explaining the operation of this embodiment. 8...Microcomputer, 9...Power supply section,
10...Timer.

Claims (1)

[Claims for Utility Model Registration] A double cassette deck type magnetic tape recording device having first and second decks into which cassette tapes can be respectively loaded, wherein the magnetic tape recording device is provided commonly to the first and second decks, an operation mode setting switch that is preset so that a recording or playback command can be output when the power is turned on after a time set by a timer built into the device or provided separately; first and second cassette loading detection switches provided corresponding to each of the second decks and detecting that a cassette tape is loaded in each deck; first and second deck controllers are provided, and supply the output of the operation mode setting switch to the first and second deck controllers for the deck in which the cassette tape is loaded according to the output of the first and second cassette loading detection switches. What is claimed is: 1. A double cassette deck type magnetic tape recording device comprising: two deck operation command means, and the first deck operation command means is configured to operate with priority over the second deck operation command means.