KR19990035198A - 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. When the counted time exceeds the preset reference head cleaning time by comparing the preset time with the preset reference head cleaning time, the deck door is opened so that the user can perform the head cleaning operation while notifying the user of the head cleaning time. In addition, by locking the deck door in the open state until the reset key is input, the head cleaning operation can be easily performed and the life of the head can be extended by preventing the wear of the head.

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.

Accordingly, the present invention has been made to solve the above-mentioned problems, and checks the head cleaning time to prevent head wear by providing a head cleaning recommendation message and a warning display on a screen or a display lamp after a predetermined time elapses. The present invention provides an audio head cleaning time recommendation method of a cassette tape recorder suitable for extending the life of the head and improving 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 ♣

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 19: power 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 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 the driving time of the deck when the deck tape is driven in response to the drive of the deck driving unit according to the driving control signal while the power supply of the cassette tape recorder is turned on; A storage unit to store a 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 is provided. Counting; Storing the counting time cumulatively with the time previously stored in the storage; Comparing a counting time accumulated and stored in the storage unit with a preset reference head cleaning time; 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 storage unit is larger 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, the power supply unit 12 supplies power to a cassette tape recorder. And a key input unit 10 for providing various key input signals for driving the cassette tape recorder, and a deck for driving the deck 18 by receiving a control signal according to the key input signal provided from the key input unit 10. The drive unit 12, the counter 13 driving the deck 18 according to a control signal, and counting the driving time of the deck driving unit 12, and the drive of the deck driving unit 12 counted by the counter 13. Provides a drive control signal to the storage unit 14 for storing the time and the counter 13 and reads the driving time of the deck driving unit 14 stored in the storage unit 14 and compares it with a preset reference time to count the comparison result. Became When the extended driving time becomes more than the preset reference time, the head cleaning time is controlled to inform the user, and the deck driving unit 12 is controlled to open the deck door (not shown) mounted on the deck 18. The control unit 11 locks the doors so that they are not closed, the OSD generating unit 16 generating OSD characters for the recommended message of the cleaning time under the control of the control unit 11, and the OSD generating unit 16 to the recommended message. The display unit 17 for displaying the OSD character and the display unit 15 for recommending the head cleaning time under the control of the control unit 11 is configured. 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 at the same time the power supply of the cassette tape recorder is turned on, and the time stored in the storage unit 14 until the power supply of 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, in the comparison time, the time counted by the counter 13 is read by the controller 11 to continuously compare with the reference head cleaning time. Here, the normal reference head cleaning time is generally to clean the audio head when it is about 100 to 150 hours based on the play operation of the cassette tape recorder.

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.

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 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).

When 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 up to the present stored in the storage unit 14 exceeds the preset reference head cleaning time, the counting time stored in the storage unit 14 is reset according to the control signal, and then the display unit 17 in the OSD form. At the same time as displaying the recommended message that the head cleaning time has been displayed at the display lamp 15 to inform the user that the head cleaning time has been reached (S106).

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 (S107). As such, when the deck door is open and locked, the user may clean the audio head mounted on the deck 18 using a soft cotton cloth such as a cotton swab (S108).

When the cleaning operation of the audio head is completed, when the user applies the reset signal to the control unit 11 by using the reset key of the key input unit 10 to the control unit 11 (S109), the control unit 11 is the deck driver 12 ) To unlock the locked deck door (S110). Subsequently, when the deck door is unlocked, the user manually closes the deck door.

On the other hand, if the total driving time of the deck of the cassette tape recorder up to now in step S105 is less than the reference value, it is recognized that the time has not yet been cleaned, and the counting value is stored to store the counting value continuously. Accumulate. 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 a cassette tape recorder having a deck, a storage unit and a deck door, Counting time while the cassette tape recorder is powered on; Storing the counting time cumulatively with the time previously stored in the storage; Comparing a counting time accumulated and stored in the storage unit with a preset reference head cleaning time; Displaying a recommendation message for the head cleaning time of the cassette tape recorder or displaying a recommended lamp 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.