KR19990035199A - 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 usage time from the initial head cleaning to the present, and compare the preset head cleaning time with the counting time, that is, the driving time of the deck. If you do, inform the user of the head cleaning time, open the deck door for the user to perform the head cleaning operation, and simply perform the head cleaning operation by locking the deck door in the open state until the reset key is entered It is possible to prolong the life by preventing the wear of the head by notifying the time of head cleaning.

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 the conventional cassette tape recorder, when the user thinks about the cleaning time of the audio head or listens to the damaged audio signal to be played, the head is worn until the damaged audio signal is reached. There is a problem that the life of the audio head is shortened.

In addition, even when a foreign material is simply attached to the audio head due to the damaged audio signal being reproduced, if the user does not know this, there is another problem that may occur when the user does not think about cleaning the head and may be troubled by requesting service.

Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to check the head cleaning time and to provide a head cleaning recommendation message and warning display on the screen or display lamp after a certain time has elapsed. An audiohead cleaning time recommendation method of a cassette tape recorder suitable for preventing the occurrence of wear, extending the life of the head and improving the convenience of use is provided.

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 ♣

10: key input unit 11: control unit

12: deck driving unit 13: counter

14: storage unit 15: display unit

16: OSD generation unit 17: Display unit

18: Deck

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 deck driving unit, a deck and a deck door, and various key input signals for driving a cassette tape recorder. And a key input unit for providing a reset signal; A counter for counting a driving time of the deck when the deck is driven by driving the deck driver according to one control signal; A storage unit which stores the deck driving time counted by the counter; The drive control signal is provided to the counter, and the deck driving time stored in the storage unit is read and compared with the preset reference time, and the head cleaning time is notified to the user when the stored driving time is more than the preset reference time. A control unit for controlling the deck driving unit at the same time to open the deck door mounted on the deck and to lock the opened door to an open state; And a display configured to display a recommended message of 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 the head cleaning recommendation method of the cassette tape recorder having a deck, a storage unit, and a deck door according to the key input signal. Counting driving time while being driven; 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; Displaying a recommendation message for the head cleaning time of the cassette tape recorder when the counting time accumulated and stored in the comparison result is greater than the preset reference head cleaning time; Driving the deck according to a control signal to open the deck door and simultaneously locking the deck door in an open state; Cleaning the head mounted inside the deck door which is locked in an open state; When the head cleaning operation is completed, the lock door is released by providing a reset signal.

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, a configuration of various key input signals for driving a cassette tape recorder is shown. Provided is a key input unit 10, a deck drive unit 12 for receiving a control signal according to the key input signal provided from the key input unit 10 to drive the deck 18, and the deck 18 in accordance with the control signal ) Is driven and the counter 13 for counting the driving time of the deck driving unit 12, the storage unit 14 for storing the driving time of the deck driving unit 12 counted by the counter 13, and the counter 13. ) Provides a drive control signal and reads the drive time of the deck drive unit 14 stored in the storage unit 14 and compares it with the preset reference time, and counts the result of the comparison when the stored drive time becomes more than the preset reference time. A control unit 11 for controlling the deck cleaning time to inform the user and simultaneously controlling the deck driving unit 12 to open a deck door (not shown) mounted on the deck 18 and locking the door so that the door is not closed; An OSD generator 16 for generating OSD characters for the recommended message of the cleaning time under the control of the controller 11, and a display 17 for displaying OSD characters for the recommended message from the OSD generator 16; And a display unit 15 for recommending and displaying the head cleaning time under the control of the control unit 11. Here, the display unit 15 may use LEDs or various lamps.

Here, the counter 13 operates according to a control signal provided from the control unit 11 when the deck driving unit 12 of the cassette tape recorder is driven, and counts the time until the driving of the deck driving unit 12 ends. . The controller 11 releases the lock of the deck door when the reset key of the key input unit 10 is input when the deck door is locked in the open state.

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, the user provides the control unit 11 with one key input signal among various key signals such as playing or recording a cassette tape through the key input unit 10. Here, the power supply of the cassette tape recorder is in an on state, and the cassette tape is in a condition of being inserted into the deck driving unit 12.

The control unit 11 controls the deck driver 12 according to the key input signal provided from the key input unit 10 to perform an operation corresponding to the key input signal (usually based on the play operation), and at the same time the counter 13 ) To control the counting time when the deck driver 12 is driven.

In addition, the controller 11 stores the time counted by the counter 13 until the drive of the deck driver 12 according to the stop key input signal of the key input unit 10 in the storage unit 14 until then. The counter 13 is reset.

When the deck drive unit 12 of the cassette tape recorder operates as described above, the counter is counted using the counter 13 and stored in the storage unit 14. Compare with cleaning time. Here, the comparison time is to compare the counting time each time the drive of the deck drive unit 12 is completed, the normal head cleaning time is 100 hours based on the play operation of the cassette tape recorder, that is, the time of use of the audio head After 150 hours, it is common to clean the audio head.

As a result of comparison, when the driving accumulation time of the deck driving unit 12 stored in the storage unit 14 exceeds the preset reference head cleaning time, a control signal is provided to the OSD generator 16 to recommend the head cleaning time to the user. By generating an OSD character for the message, the head cleaning recommendation message is displayed 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.

At the same time, the control unit 11 controls the deck driving unit 12 to open the deck door mounted on the deck 18. Then, the open deck door is locked so as not to be forcibly closed by the user. Here, the reason for locking the deck door is that the user does not recognize the head cleaning time, and the closed deck door can be forcibly closed.

With the door open, the user cleans the audio head with alcohol on a cotton swab.

As such, when the head cleaning operation is completed by the user, the reset signal is controlled by using the reset key (not shown) of the key input unit 10 to release the deck door that is open, that is, locked in the open state. When input to the control unit 11 is to control the deck driving unit 12 to release the locked deck door. Thus, the user can close the deck door.

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, the power supply of the cassette tape recorder is turned on and the cassette tape is inserted into the deck driving unit 12 (S101).

Subsequently, it is determined whether the playback key input signal is input through the key input unit 10 (S102), and when the key input signal is input, the deck driving unit 12 is driven in accordance with the key input signal and the deck driving time is adjusted according to the control signal. Start counting (S103).

When the deck driving is stopped while counting the driving time of the deck driving unit 12 as described above, the deck driving time counted so far is stored in the storage unit 14 (S104).

Subsequently, the counting time stored in the storage unit 14 is compared with the preset head cleaning time (S105), and the driving time of the deck driving unit 12 up to the present time stored in the comparison result storage unit 14 is preset. It is determined whether the cleaning time has been exceeded (S106).

As a result of the determination, when the driving time of the deck driver 12 to the present day 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. The display unit 17 displays a recommendation message informing that the head cleaning time has been reached, and simultaneously drives the display lamp 15 to inform the user that the head cleaning time has been reached (S107).

Subsequently, the control unit 11 controls the deck driving unit 12 to open the deck door mounted on the deck 18 and locks it so as not to be forcibly closed by the user (S108). When the deck door is open and locked as described above, the user may clean the audio head mounted on the deck 18 by using a soft cotton cloth such as a cotton swab (S109).

When the cleaning operation of the audio head is completed, when the user applies the reset signal to the controller 11 by using the reset key of the key input unit 10 to the controller 11, the controller 11 controls the deck driver 12. The door is locked to unlock the deck door (S111). Subsequently, when the deck door is unlocked, the user manually closes the deck door.

On the other hand, if the total deck drive time of the cassette tape recorder up to now in step S106 is less than the reference value, it is recognized that the time has not yet been cleaned, and the counting time is continuously stored by storing the counting value 14. Done. 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 prevents wear of the head by checking the usage time from the first head cleaning to the present time and comparing it with the reference value, and notifying the user of the head cleaning time accordingly. This has the effect of extending the life.

Claims (1)

In the head cleaning method of a cassette tape recorder having a deck, a storage unit and a deck door, Counting the driving time while the deck of the cassette tape recorder is driven according to the key input signal; 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; Displaying a recommendation message for the head cleaning time of the cassette tape recorder when the counting time accumulated and stored in the comparison result is greater than the preset reference head cleaning time; Driving the deck according to a control signal to open the deck door and simultaneously locking the deck door in an open state; Cleaning the head mounted inside the deck door which is locked in an open state; A method of recommending an audio head cleaning time for a cassette tape recorder comprising providing a reset signal to release a locked deck door when the head cleaning operation is completed.