JPH03260941A - Magnetic recording/reproducing device - Google Patents

Abstract

PURPOSE:To eliminate the need of a dedicated switch, etc., and to improve the operability by operating simultaneously two switches having functions which are different from a fader start function, operating a changeover means with a deciding means and making a changeover of the fader start function accordingly. CONSTITUTION:The fader start function 7 for starting a reproducing operation by operating a reproducing level adjusting means for adjusting a reproducing level is decided as to whether its function is effective or ineffective by the deciding means 6. The 1st and 2nd switches 1 and 2 are for operating their respective functions which are different from the fader start function 7, and when the 1st switch 1 is singly operated, the 1st function 3 is operated, and when the 2nd switch 2 is singly operated, the 2nd function 4 is operated. When the 1st and 2nd switches 1 and 2 are simultaneously operated, the changeover means 5 is operated to make a changeover to the state opposite to a decided result of the deciding means 6, and the effectiveness/ineffectiveness of the fader start function are switched.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording/reproducing device, and more particularly to a magnetic recording/reproducing device having a fader start function that starts a reproducing operation by operating a level adjusting means for adjusting a recording/reproducing level. It relates to a recording/playback device.

BACKGROUND OF THE INVENTION For example, a magnetic recording device such as an open type magnetic tape recorder has a location 1 function, a fader start function, and a 9 cue function.

The fader start function is a function in which the reproduction operation starts when the fader, which is a reproduction level adjusting means for adjusting the reproduction signal 8 level, is moved from the zero position to a predetermined position.

The cueing function is a function to run the magnetic tape to the position where the play switch was last operated, and the D-goo 1 function is a function to run the magnetic tape to a position previously stored in the memory.

Conventionally, these functions have been operated by switching a single operation switch to a multiple function selection switch provided on the back of the main body of the tape deck.

Problems to be Solved by the Invention However, in conventional magnetic recording/reproducing devices, one operation switch is used for both the locate function and the fader start function, and the function of the operation switch is provided separately for function selection. Locate function because the configuration was selected by a switch.

The cueing function and the fader start cannot be operated at the same time, resulting in poor operability and a large number of switches, resulting in high costs.

The present invention has been made in view of the above points, and an object of the present invention is to provide a magnetic recording/reproducing device with good operability.

Means for Solving the Problems A block diagram of the principle of the present invention is shown in FIG. a first switch 1 for operating a first function 3 different from the fader start function; and a first switch 1 for operating a first function 3 different from the fader start function 7; a second switch 2 for operating a second function 4 different from the first switch 3; a determining means 6 for determining whether the fader start function 7 is friendly or invalid; A switching means 5 is provided for switching the fader start function 7 so that, by operating the switch 2 at the same time, the fader start function 7 is disabled when the judgment result of the judgment means 6 is valid, and is enabled when it is invalid.

Operation When the first switch 1 is operated alone, the first function 3 is operated, and when the second switch 2 is operated alone, the second function 4 is operated. Further, by simultaneously operating the first switch 1 and the second switch 2, the switching means 5
operates and the fader start function 7 is switched. The fader start function 7 is determined to be valid or invalid by the determining means 6, and the switching means 5 is operated by simultaneously operating the first switch 1 and the second switch 2.
The fader start function 7 is switched to a state opposite to the judgment result of the judgment means 6, that is, if the judgment result is valid, it is disabled, and if the judgment result is invalid, it is enabled.

Embodiment FIG. 2 shows a block diagram of an embodiment of the present invention.
The key operation means is composed of a plurality of keys, and includes a first switch, a zero key 8a for operating functions such as search, and a stop key 8b for stopping magnetic tape running. , By operating this key operation means 8, recording and playback, fast forwarding, rewinding,
Various functions such as search are executed.

9 is a microcomputer that operates switching means 52 and determining means 6;
The recording/playback and magnetic tape running are controlled according to key operations on the key operation means 8, and the first lI!
Noh 3. Second function 4. Various functions such as the fader start function 7 operate.

A recording/reproducing system 10 demodulates the signal from the magnetic head 12 and supplies it to the mixer 11. The mixer 11 is a device having adjustment means such as a fader, which is a level adjustment means for changing the level and characteristics of the reproduction signal from the recording/reproduction system 10.

14 is a tape drive circuit which drives the reel 15a in response to a drive signal from the microcomputer 9;

15b and the main Yapstan 16.

The rotation of the reel 15a is detected by the sensor 17, and the microcomputer 9 detects the number of rotations of the reel 15a from the rotation signal from the sensor 17, and sets the counter 18 to 1.
1 to display the running position of the magnetic tape 13 on the counter 18.

Next, the fader start function 7 will be explained. Fader start function 7 is a function used during playback, which gradually raises the fader from a low playback level.
This function starts the playback operation when the playback level is raised to a predetermined playback level position.

First, fader start function 7 is enabled and recording/starting is enabled.
The reproduction system 10 is in the reproduction mode, and the magnetic tape 13
Assume that it is in a stopped state.

In this state, when the fader is operated and raised to a position above a predetermined playback level position, a start signal for the fader start function 7 of the micro display 9 is inputted from the mixer 11. In response, the microcombinations 1-9 supply the υJm signal to the tape drive circuit 14.

The tape drive circuit 14 starts operating in response to a control signal from the microcombination unit 9, and the magnetic tape 13 starts running.

Incidentally, when the fader start function 7 is disabled or when the playback mode is not in effect, the fader start function 7 does not operate even if a recording signal is input.

Next, the operation for enabling or disabling the fader start function 7 will be explained with reference to Fig. 3. First, with the fader start function 7 disabled, press the locate key 88.
and stop key 8b at the same time (step 19
．． 20) and the determination means 6 set in the microcomputer 9 determines whether the fader start function 7 is currently valid (step 21). At this time, since the fader star function 7 is disabled, the switching means 5 in the microcomputer 9 enables the fader start function.
Turn off the light emitting means installed near the operation and turn off the fader.
It is notified that the start function 7 is in a valid state (step 22.23).

Next, with the machine start function 7 disabled, operate the D key 88 and the stop key 8b.
9.20), and this time the fader start function 7 is enabled, so the microcombi latch 9 starts its fader start function.
The start function 7 is disabled and the light emitting means is turned on to notify that the fader start function 7 is disabled (steps 24 and 25).

If only the locate key 8a is operated in steps 19 and 20, the search functions in steps 26 to 30 are performed.

In this way, by simultaneously operating the locate key 8a, which is the first switch 1 that operates the search function, and the stop key 8b, which is the second switch 2 that stops magnetic tape running, the fader start function 7 can be enabled or turned off. It can be disabled and there is no need to provide a dedicated switch. Therefore, it is possible to reduce the number of operation keys, resulting in cost reduction and improved operability.

Although this embodiment has been described for reproduction, similar operations can be performed during recording as well.

Effects of the Invention As described above, according to the present invention, different first and second
By simultaneously operating the first switch and second switch that operate the function, the fader start function, which is a function different from the first function and the second function, is enabled or disabled. The fader start function is possible without providing a switch, and the first and second functions can be operated simply by operating the first or second switch alone. It has features such as good operability.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a diagram for explaining the operation of an embodiment of the present invention. 1... first switch, 2... second switch, 5
. . . switching means, 6 . . . determining means, 7 . . . fader start function, 8 .

Claims (1)

[Scope of Claims] A magnetic recording/reproducing device having a fader start function that starts a recording/reproducing operation by operating a level adjustment means for adjusting a signal level, comprising: a first function different from the fader start function; a first switch to be operated; a second switch having a function different from the fader start function and operating a second function different from the first function; and the fader start function being enabled. and a determination means for determining whether the determination result is valid or invalid, and by simultaneously operating the first switch and the second switch, the determination result of the determination means is invalidated when it is valid, and when it is invalid it is invalidated. A magnetic recording/reproducing apparatus comprising: switching means for switching the fader start function so that the fader start function is switched.