KR19990035196A - Recommended audio head cleaning time for cassette tape recorders - Google Patents

Abstract

The audio head cleaning time recommendation method of the cassette tape recorder is to count the time after the initial head cleaning and the cassette tape recorder is turned on and store it in the storage, and then accumulate by counting the time each time the power is continuously turned on. If the counting time exceeds the set reference head cleaning time by comparing the set time to the predetermined reference head cleaning time, the head cleaning time is notified to the user to prevent the wear of the head to extend the life.

Description

Recommended audio head cleaning time for cassette tape recorders

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette tape recorder, and more particularly, to a method for recommending an audio head cleaning time of a cassette tape recorder to check and notify an audio head cleaning time of a cassette tape recorder.

In general, a cassette tape recorder refers to a device in which a magnetic tape on which an audio signal is recorded is inserted into an audio deck to listen to an audio signal recorded on the magnetic tape through a speaker.

The method of recording audio signals on magnetic tape uses a technique called magnetic recording using the properties of magnets. Here, magnetic recording is a technique of arranging magnets according to an electric signal on a magnetic tape. The strength of the signal is recorded as the strength of magnetization, the polarity of the signal as the direction of the magnet, and the frequency as the length of the magnet. . In other words, the head plays a role of making a micromagnet on the tape and conversely reading an array of micromagnets on the tape and converting them into an electrical signal.

The magnetic tape is coated on the surface of the magnetic tape so that the magnetic flux tends to magnetize the tape through the surface of the tape and form a micro magnet.

In this manner, the magnetic tape is lined up in sequence with the magnetized micromagnets according to the current flowing through the head, so that the signal is magnetically recorded. At the time of reproduction, the self-recorded tape is driven at the same speed as at the time of recording to generate an output voltage using the same head as at the time of recording. That is, since the leakage magnetic flux enters through the head from the micro-magnet recorded on the magnetic tape, the leakage magnetic flux changes as the tape travels, so that voltage is generated by electromagnetic induction and the recording signal is reproduced.

In such a general cassette tape recorder, if a user records or plays back the tape for too long or is left unused for too long, foreign matter may be attached to the audio head. When foreign matter is generated in the video head, the head which plays an important function in recording and reproducing the video signal cannot function properly. Therefore, the correct audio signal is not output through the speaker. In addition, if the head is not cleaned, wear of the head is caused.

This wear of the head can damage the audio signal recorded on the tape, and the user can finally determine whether the current audio head needs to be cleaned after hearing the damaged audio signal or can be cleaned later. .

However, in such a conventional cassette tape recorder, when the user thinks about the cleaning time of the audio head or simply hears and judges the damaged audio signal to be played, the head may be worn until the damaged audio signal is reached. There is a problem that the life of the audio head is shortened.

In addition, even if a foreign material is simply attached to the audio head as a cause of the damaged audio signal being reproduced, if the user does not know this, there is another problem that may cause trouble to request a service without thinking about cleaning the head.

Therefore, the present invention has been made to solve the above problems according to the prior art, the head cleaning time by checking the head cleaning time, the head cleaning recommendation message and warning display on the screen or display lamp after a certain time elapsed head wear It is an object of the present invention to provide an audio head cleaning time recommendation method of a cassette tape recorder suitable for preventing the occurrence of the head to extend the life of the head and to improve the convenience of use.

1 is a block diagram of an apparatus for implementing an audiohead cleaning time recommendation method of a cassette tape recorder according to the present invention.

2 is a flowchart illustrating an operation of an audiohead cleaning time recommendation method of a cassette tape recorder according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

11 control unit 12 power supply unit

13 counter 14 storage unit

15: display unit 16: OSD generation unit

17 display unit

An audio head cleaning time recommending device feature of a cassette tape recorder according to the present invention for achieving the above object is a cassette tape recorder having a key input unit and a deck driving unit, wherein the deck driving unit is driven simultaneously with the deck driving unit according to the key input signal. A counter for counting the driving time of the driving unit; A storage unit for accumulating and storing driving time of the deck driving unit counted in the counter; The deck drive unit is controlled according to the key input signal of the key input unit, the drive control signal is provided to the counter, the drive time of the deck drive unit stored in the storage unit is read and compared to the preset reference head cleaning time. A control unit which controls to inform the user of the head cleaning time when the preset reference time is over; It is configured to include a display unit for displaying the recommended message of the cleaning time under the control of the controller.

In addition, the audio head cleaning time recommendation method of the cassette tape recorder according to the present invention is characterized in that in the head cleaning method of the cassette tape recorder having a head, a deck and a storage unit, the deck of the cassette tape recorder is driven according to a key input signal. Counting driving time at the same time; Accumulating the counting time with the deck driving time previously stored in the storage; Comparing the counting time accumulated in the storage unit with a preset reference head cleaning time when the deck stops driving; When the counting time accumulated and stored in the storage unit is greater than the preset reference head cleaning time, the recommendation message for the head cleaning time of the cassette tape recorder is displayed.

Hereinafter, an embodiment of an audiohead cleaning time recommendation method of a cassette tape recorder according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating an apparatus for implementing an audio head cleaning time recommendation method of a cassette tape recorder according to the present invention. Referring to FIG. 1, the power supply unit 12 supplies power to a cassette tape recorder. And a counter 13 for counting time at the same time as the power supply unit 12 is turned on according to one control signal, a storage unit 14 for storing the time counted at the counter 13, and a power supply for the cassette tape recorder. At the same time, the drive control signal is provided to the counter 13 and the counting time stored in the storage unit 14 is read to compare the preset head cleaning time with the preset reference head cleaning time. In this case, the control unit 11 controls to inform the user of the head cleaning time, and according to the control of the control unit 11 for the recommended message of the cleaning time. OSD generation unit 16 for generating OSD characters, the display unit 17 for displaying OSD characters for the recommended message in the OSD generation unit 16, and recommends the head cleaning time under the control of the control unit 11 Is composed of a display unit 15. Here, the display unit 15 may use LEDs or various lamps.

Here, the counter 13 operates according to the control signal provided from the control unit 11 at the same time that the cassette tape recorder is turned on, and the time stored in the storage unit 14 until the cassette tape recorder is turned off. Means time.

The operation of the audio head cleaning time recommendation apparatus of the cassette tape recorder according to the present invention having the configuration as described above will be described.

First, a driving power is applied from the power supply unit 12 to the control unit 11 by an operation of a power switch (not shown).

The control unit 11 provides a drive control signal to the counter 13 when the driving power is applied from the power supply unit 12 and controls to count the time from that time.

In addition, the controller 11 stores the time counted by the counter 13 in the storage unit 14 until the supply of driving power is cut off from the power supply unit 12 by turning off the power switch of the user. (13) is reset. In this case, the storage unit 14 stores the counting time and the cumulative accumulated time previously stored in the same manner as before.

That is, each time the cassette tape recorder is turned on, the time is counted using the counter 13 and stored in the storage unit 14, and then the cumulative time is calculated to calculate the cumulative time and the preset head cleaning time set in the control unit 11. Compare. Here, the comparison time is to compare the counting time when the power supply of the cassette tape recorder is turned off and the power is applied again, and the normal head cleaning time is about 100 to 150 hours based on the play operation of the cassette tape recorder. It is common to clean the audio head when

As a result of the comparison, when the accumulated counting time stored in the storage unit 14 exceeds the preset reference head cleaning time, a control signal is provided to the OSD generating unit 16 to display an OSD character for a message recommending the head cleaning time to the user. To generate the head cleaning recommendation message on the display unit 17. At the same time, the display unit 15 is controlled to display the head cleaning time by turning on the lamp LED.

Therefore, the user checks the recommended message displayed on the display unit 17 or checks the lighting of the lamp displayed on the display unit 15, and cleans the audio head of the cassette tape recorder using the head cleaner tape.

The audiohead cleaning time recommendation method of the cassette tape recorder according to the present invention corresponding to the operation of the audiohead cleaning time recommendation apparatus of the cassette tape recorder according to the present invention as described above will be described with reference to the accompanying drawings.

2 is a flowchart illustrating an audiohead cleaning time recommendation method of a cassette tape recorder according to the present invention.

First, it is determined whether the power supply of the cassette tape recorder is turned on (S101).

If the power supply of the cassette tape recorder is turned on, the power is turned on and at the same time counting the time according to the control signal provided from the control unit 11 (S102).

If the power of the cassette tape recorder is cut off while counting the time, the counted time is stored in the storage unit 14 (S103).

Subsequently, the counting time stored in the storage unit 14 is compared with the preset head cleaning time (S104). The result of the comparison determines whether the accumulated time stored in the storage unit 14 exceeds the preset reference head cleaning time. (S105).

As a result of the determination, when the accumulated time to date stored in the storage unit 14 exceeds the preset reference head cleaning time, the counting time value stored in the storage unit 14 is reset according to the control signal, and then the display unit 17 is displayed in the OSD form. At the same time as displaying a recommendation message indicating that the head cleaning time is reached, the display lamp 15 is turned on to inform the user that the head cleaning time has been reached.

Accordingly, the user checks the display unit 17 and the display lamp 15 to perform head cleaning using the head cleaner tape.

However, if the total accumulated time stored in the storage unit 14 is less than the reference head cleaning time, it is recognized that it is not yet time to clean, and counts the time each time the cassette tape recorder is turned on to store the counting value. (14) Accumulate the counting time by saving. When the cumulative time exceeds the preset reference head cleaning time, the user cleans the audio head of the cassette tape in the same manner as described above.

As described above, the audio head cleaning time recommendation method of the cassette tape recorder according to the present invention checks the time from when the cassette tape is turned on, compares it with a preset reference head cleaning time, and informs the user of the head cleaning time accordingly. It has the effect of prolonging the life by preventing the wear of the head.

Claims (1)

In the head cleaning method of the cassette tape recorder having a storage unit and a display unit, Counting time while the cassette tape recorder is powered on; Accumulating the counting time with the deck driving time previously stored in the storage; Comparing a counting time accumulated and stored in the storage unit with a preset reference head cleaning time when the cassette tape recorder is turned off and then on again; When the counting time accumulated and stored in the storage unit is greater than the preset reference head cleaning time, the cassette tape recorder displays a recommendation message for the head cleaning time or turns on the recommended lamp. Recommended audiohead cleaning time.