JPH01317254A - Automatic controller for magnetic reproduction circuit - Google Patents

Abstract

PURPOSE:To automatically perform the fast forward, rewind and stop operations, etc., set previously by preparing a mode setting part for fast forward, rewind and stop, etc., a tape non-recorded state detecting part, and a decision control part which decides whether the detection signal continues longer than the set time or not. CONSTITUTION:A magnetic reproduction circuit contains a reproduction control part 12 and reproduces and outputs the sound signals recorded on a magnetic tape 3. A setting part 10 which sets the modes for fast forward, rewind and stop, etc., of the tape 3 is added to the magnetic reproduction circuit together with a detecting part 11 which detects the presence or absence of a non-recorded state of the tape 3 when the setting signal is received from the part 10. Then it is decided whether the detection signal received from the part 11 continues longer than the set time or not when the setting signal is received from the part 10. Based on this decision output, a decision control part 13 controls the part 12 in a mode corresponding to said setting signal. Thus the fast forward, rewind and stop operations can be automatically performed in a simple way.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention provides a magnetic reproducing circuit for reproducing audio signals recorded on a magnetic tape.
This relates to a device that automatically controls stopping, etc.

[Prior Art] As shown in FIG. 2, a conventional magnetic playback circuit of a tape recorder or the like sets the playback control unit (2) to the playback mode by pressing the playback button of the operation unit (1), and plays the magnetic tape ( 3) The audio signal recorded in the playback head (4) and the amplification section (5)
I was trying to output the playback using . When you have finished playing one side and want to fast forward to play the other side, when you want to rewind to listen to one side over and over again, or when you have finished playing one side and want to fast forward to play the other side, When wanting to stop playback, the user manually presses a fast forward button, rewind button, or stop button on the operating section (1). (6) is a diode detection section, and (7) is a level meter.

[Problem to be solved by the invention] However, in the conventional magnetic reproducing circuit shown in FIG.
In order to fast forward, rewind, stop, etc., the corresponding buttons must be pressed manually, which poses a problem in that operations are cumbersome.

The present invention has been developed in view of the above-mentioned problems, and focuses on the fact that there is generally an unrecorded part at the end of a magnetic tape on which music is recorded, and this unrecorded state continues for a set time or longer. It is an object of the present invention to provide a magnetic reproducing circuit that can automatically perform preset fast forwarding, rewinding, or stopping when the user plays a video.

[Means for Solving the Problems] The present invention includes a playback control unit that switches and controls modes such as fast forwarding, rewinding, and stopping of a magnetic tape during playback, and plays back audio signals recorded on the magnetic tape. A magnetic playback circuit that outputs a magnetic tape includes a setting section for setting modes such as fast forwarding, rewinding, and stop of the magnetic tape, and a setting section that sets the magnetic tape in a non-recording state during playback when a setting signal from the setting section is provided. a detection unit that detects whether or not there is a signal, and a detection unit that determines whether or not the detection signal from the detection unit has continued for a set time or more when there is a setting signal from the setting unit, and uses this determination output to control the playback control unit. and a determination control section that controls the mode to a mode corresponding to the setting signal.

[If a mode such as fast forwarding, rewinding, or stopping of the magnetic tape is set in the action setting section, the detection section detects whether or not the magnetic tape is in a non-recording state during playback, and performs discrimination control. The section determines whether or not the detection signal from the detection section continues for a set time or more, and controls the playback control section to a corresponding mode such as fast forward, rewind, or stop based on the output of this determination.

Therefore, if a non-recording state continues for a set time or more during playback, the magnetic tape is automatically fast-forwarded, rewound, or stopped.

[Embodiment] FIG. 1 shows an embodiment of the present invention, and the same parts as in FIG. 2 are given the same reference numerals.

In FIG. 1, (3) is a magnetic tape, (4) is a playback head, and the output side of this playback head (4) is coupled to a playback control section (12) and a diode detection section (6).
) to the level meter (7).

(1) is an operation section, and this operation section (1) sends an operation control signal to the playback control section (12) to perform playback, fast forwarding, etc.
Play button to specify each mode such as rewind, stop, etc.
A fast forward button, rewind button, stop button, etc. are provided. (
10) is a setting unit that outputs setting signals for setting each mode such as fast forward, rewind, and stop based on the press of a setting button or the like. (11) is the setting section (10)
When there is a setting signal from the diode detector (
Based on the output of 6), the magnetic tape (
3) is a detection unit that detects whether or not there is no recording. (13) determines whether or not the detection output from the detection unit (11) continues for a set time (for example, 20 seconds) when there is a setting signal from the setting unit (10), and outputs this determination. This is a discrimination control section that controls the playback control section (12) to a mode (for example, fast forward mode) corresponding to the setting signal.

Next, the operation of the above embodiment will be explained.

(1) For example, when the fast forward mode is set by a setting button of the setting section (10), a setting signal is input to the detection section (11) and the discrimination control section (13).

(2) Next, when the playback button on the operation unit (1) is pressed to enter the playback mode, the audio signal (for example, a music signal) recorded on the magnetic tape (3) is played back.

Note that the setting (1) above may be performed during playback.

(3) During this reproduction, since there is a setting signal from the setting section (10), the detection section (11) detects whether or not there is a non-recording state on the magnetic tape (3). Magnetic tape (3
) When the playback of the audio signal recorded on the - side of the screen ends and the non-recording state continues for more than a set time (for example, 20 seconds), the detection signal from the detection unit (11) continues for more than the set time, and the discrimination control unit ( 13) controls the playback control unit (1) based on the discrimination output.
2) A control signal for fast forward mode is output. Therefore, the magnetic tape (3) is automatically fast-forwarded without pressing the fast-forward button on the operating section (1), and stops at the end of the tape. When the rewind mode is set in (1) above, the above 0)
(2) Similarly to (3), if the non-recording state continues for more than a set time during playback, the magnetic tape (3) is automatically rewound and stopped at the end of the tape. Even when the stop mode is set in (1) above, the above (]) (2) (3)
), if the non-recording state continues for a set time or more during playback, the magnetic tape (3) automatically stops. In the above-mentioned embodiment, when the non-recording state continues for a set time or more during playback, it is automatically fast-forwarded and then stopped, rewound and then stopped, or simply stopped, but the present invention is not limited to this. Instead, it may be possible to fast-forward and then play the opposite side, or to rewind and then repeat the playback again.

[Effects of the Invention] The automatic control device for a magnetic playback circuit according to the present invention adds a setting section, a detection section, and a discrimination control section to the conventional circuit as described above, so that the non-recording state during playback can be maintained for a set period of time. When the above continues, the magnetic tape is automatically controlled to fast forward, rewind, stop, etc., so you have to manually press the operation button on the control panel each time you want to fast forward, rewind, stop, etc. Fast forwarding, rewinding, stopping, etc. can be performed automatically without any hassle, making operations easier. This simplifies operations such as fast-forwarding to play the opposite side, rewinding the single-sided playback board to the initial state, and listening to one side over and over again.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of essential parts showing an embodiment of an automatic control device for a magnetic reproducing circuit according to the present invention, and FIG. 2 is a block diagram showing a conventional example. (3) Magnetic tape, (10) Setting section, (11)
. . . detection section, (12) . . . playback control section, (13).
...Discrimination control unit. Applicant Fujitsu General Ltd.

Claims (1)

[Claims] (1) Equipped with a playback control unit that switches and controls modes such as fast forwarding, rewinding, and stopping the magnetic tape during playback;
In a magnetic reproducing circuit that reproduces and outputs an audio signal recorded on the magnetic tape, there is a setting section that sets modes such as fast forwarding, rewinding, and stopping of the magnetic tape, and a setting signal from the setting section. a detection unit that detects whether or not the magnetic tape is in a non-recording state during playback, and a detection unit that detects whether the detection signal from the detection unit continues for a set time or more when there is a setting signal from the setting unit. 1. An automatic control device for a magnetic reproducing circuit, comprising: a discrimination control section which discriminates and uses the discrimination output to control the reproduction control section to a mode corresponding to the setting signal.