KR970000411B1 - Apparatus for searching tape for cassette tape player - Google Patents

Abstract

The tape high-speed searching device in a cassette tape player in which a tape reel motor driver(12) is driven by the function key input via a wired remote controller(100) or a key input unit(11),to operate a tape reel motor(13) and thereby the audio signals from a tape play mechanism(14) which performs a play operation are amplified by a preamplifier(15), signal-processed by a signal processor(16), power-amplified by an amplifier(17) and then output to a speaker or a headphone via r and l channels, has a high-speed search control knob(100a) which is installed in the wired remote controller(100) and controls the high-speed searching operation of fast forward and rewind, a searching voltage detector(18) for detecting the searching voltage from the high-speed search control knob(100a), a voltage comparator(19) for comparing the voltage value of the detected searching voltage with a predetermined voltage value and outputting a comparing signal, an A/D converter(20) for converting the comparing signal to a digital signal, and a micom(21) for receiving a function input signal for a high-speed search of the tape location from the high-speed search control knob(100a) of the wired remote controller(100) and outputting a control signal to the tape reel motor driver(12) and the tape play mechanism(14), whereby the micom(21) receives and perceives the comparing signal from the voltage comparator(19) via the A/D converter(20) and the tape reel motor(13) is rotated or reverse-rotated in a high speed by the perceived result of the micom(21) received via the tape reel motor driver(12), thereby performing the high-speed searching operation of the tape play mechanism(14).

Description

Tape Speed Searcher of Cassette Tape Player

1 is a block diagram of a tape fast search apparatus for a cassette tape player according to the present invention.

2 is a perspective view showing an example of a wired remote control applied to the tape high speed search apparatus of the cassette tape player of the present invention.

Figure 3 (a) is a plan view showing the configuration of the high speed search control knob of the wired remote control shown in FIG.

FIG. 3B is a cross-sectional view of the high speed search control knob along the A-A line of FIG.

* Explanation of symbols for main parts of the drawings

11 key input unit 12 tape reel motor drive unit

13: tape reel motor 14: tape playback mechanism

15: preamplifier 16: signal processing unit

17: amplifier 18: search voltage detector

19: voltage comparator 20: A / D converter

21: micom 100: wired remote control

100a: high-speed search control knob 100b: function input unit

101: cold search pattern 102: rewind search pattern

103: fixed shaft 104: voltage detection arm

The present invention relates to a tape high speed search apparatus of a cassette tape player, and more particularly, through a control knob for controlling a high speed search operation such as fast forward (FF) and rewind (REWIND; REW) of a cassette tape player. The present invention relates to a tape fast search apparatus for a cassette tape player that enables a high speed search of a tape position.

In a cassette tape player generally used, a recording operation and a playback operation are performed by bringing a recording head and a playback head closer to a magnetic tape. Key input of a function operation input key provided in a predetermined portion of the main body of the cassette tape player is performed. A Play operation for reproducing the recording information recorded on the tape by the operation, a Recording operation for recording predetermined audio information on the tape, and a high-speed winding of the tape so that the user can quickly go to a desired position. The fast forward (FF) operation, the rewind (REW) operation for rewinding the tape in the opposite direction of the current conveyance direction, and the operation of adjusting the volume of the audio output during the reproducing operation can be performed.

In addition, a wired remote control is currently employed between the plug jack of the portable cassette tape player and the earphone, and the overall operation of the cassette tape player is controlled by a key input operation of a predetermined function key and volume adjustment knob of the wired remote control. The function operation can be controlled remotely.

However, in order to perform a fast search operation to find a desired tape position in a cassette tape player employing such a wired remote control, cumbersome key input such as a forward key or a rewind key must be preceded, and a high speed search operation can be performed during a playback operation. In order to perform the more cumbersome key input operation is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a cassette tape is provided in which a high speed search control knob is installed on a wired remote control of a cassette tape player, and a high speed search for a desired position of a tape can be made by adjusting the speed search control knob. An object of the present invention is to provide a player's tape high speed search apparatus.

According to a preferred embodiment of the present invention for achieving the above object, the tape reel motor driving unit is driven by a function key input through a wired remote controller or a key input unit to perform a reproducing operation while the tape reel motor is operated. A cassette tape player in which an audio signal is amplified by a preamplifier, signal processed by a signal processing unit, and then amplified by an amplifier and outputted to a speaker or a headphone through an R and L channel. A high speed search control knob for controlling the fast search operation of the fast forward and rewind, a search voltage detector for detecting a search voltage from the fast search control knob, and a voltage value of the detected search voltage compared with a preset voltage value. A voltage comparator for outputting a comparison signal and recognizing the comparison signal. A / D converter for converting to a digital form, and receives a function input signal for high-speed search of the tape position from the high-speed search control knob of the wired remote controller, and outputs a control signal to the tape reel motor drive unit and tape playback mechanism. And a micom configured to receive the comparison signal from the voltage comparator through the A / D converter, and as a result, the tape reel motor is set at high speed through the tape reel motor driver. Provided is a tape high speed search apparatus of a cassette tape player which rotates or rotates in reverse to control a high speed search operation of the tape reproducing mechanism.

Preferably, according to the present invention, the high-speed search control knob has a cold search pattern patterned in a circular arc form on one side of the top plate of the high-speed search control knob, one end of which is connected to a power supply voltage terminal, and the high speed A variable resistance is patterned in the shape of an arc on the other side of the top plate of the search control knob so that one end thereof is fixed to the bottom plate of the wired remote control through a rewind search pattern connected to the ground side and penetrating the center opening of the high speed search control knob. And a voltage detection arm fixedly attached to the fixed shaft to detect a voltage from the winding search pattern and the rewind search pattern.

More preferably, according to the present invention, the cold search pattern and the rewind search pattern is composed of a variable resistance pattern integrated, the intermediate point between the cold search pattern and the rewind search pattern is buried in the variable resistor portion of the non-conductor It is set as an initial position where voltage detection is not performed.

Even more preferably, according to the present invention, the micom stops the reproducing operation of the tape reproducing mechanism and stops the tape reel motor if the high speed search control knob is adjusted while the tape reproducing mechanism is reproducing. When the control operation of the high-speed search control knob is returned to the initial position, the tape reel motor is rotated at the regeneration speed and the tape replay mechanism is re-executed.

In the present invention made as described above to perform the winding or rewinding operation through the operation of the high-speed search control knob provided in the wired remote control to remotely control the functional operation of the cassette tape player to enable forward and reverse rotation control. It is possible to search the tape position at high speed.

Hereinafter, the present invention made as described above will be described in detail with reference to the accompanying drawings.

That is, FIG. 1 is a block diagram of a tape fast search apparatus for a cassette tape player according to the present invention. In the apparatus of the present invention, reference numeral 11 is provided in a predetermined portion of the cassette tape player body to perform a functional operation. It is a key input unit for key input, 100 is a wired remote control for remotely controlling the function operation is connected between the main body and the earphone, as shown in Figure 2 is installed in a predetermined portion of one side of the wired remote control 100 A high speed search control knob 100a for controlling a high speed search operation such as a slow forward and a rewind, and a function input unit 100b for keying in a function operation such as a playback operation, a stop operation, a pause operation, and a volume control operation. It is configured to include.

Here, the high speed search control knob (100a) of the wired remote control 100 is a variable resistance in the form of an arc on one side of the top plate of the high speed search control knob (100a) as shown in Figure 3 (a) (b). The patterned cold search pattern 101, a rewind search pattern 102 in which a variable resistance is patterned in the shape of an arc on the other side of the top plate of the fast search control knob 100a, and the center of the fast search control knob 100a. A fixed shaft 103 fixed to the lower plate of the wired remote controller 100 and penetrated to the opening, and fixedly attached to the fixed shaft 103 to contact the tip thereof, and the winding search pattern 101 and the rewind search pattern 102. And a voltage detection arm 104 for detecting the search voltage of the rewind and rewind search according to the position of. In addition, the winding search pattern 101 and the rewind search pattern 102 is formed of an integrated variable resistance pattern, one side thereof (that is, the winding search pattern 101) is connected to the power supply voltage Vcc terminal and the other side thereof. That is, the rewind search pattern 102 is connected to the ground side, and an intermediate point of the variable resistance pattern, that is, an intermediate point between the winding search pattern 101 and the rewind search pattern 102 is made of the same material as the knob. Buried a variable resistor with a non-conductor of so as to be set as an initial position where no voltage is detected.

When the high speed search control knob 100a is turned in the a direction or the b direction, the voltage detection arm 104 contacts the winding search pattern 101 or the rewind search pattern 102 to perform a cold search operation or a rewind. The search operation is performed.

In addition, reference numeral 12 denotes a tape reel motor driver driven by a control signal of a microcomputer 21 to be described later, and 13 denotes a tape reel motor that operates forward or reverse rotation by driving the tape reel motor driver 12. 14 denotes a tape reproducing mechanism that receives a control signal from a microcomputer 21 to be described later and reproduces an audio signal recorded on the tape while the playhead approaches the tape by the rotation operation of the tape reel motor 13, 15 is a preamplifier for amplifying the audio signal, 16 is a signal processor for signal processing the amplified audio signal, and 17 is an audio output to the speaker or earphone through the R and L channels. It is an amplifier that amplifies power as much as possible.

In addition, reference numeral 18 denotes the position of the voltage detection arm 104 in contact with the winding search pattern 101 and the rewind search pattern 102 by the control operation of the fast search control knob 100a of the wired remote control 100. A search voltage detection unit for detecting a search voltage according to the present invention, 19 is a voltage comparison unit outputting a comparison signal as a result of comparing a predetermined predetermined voltage value with the detected search voltage value, and 20 is a digital signal capable of recognizing the comparison signal. It is an A / D converter that converts the form.

Here, the predetermined voltage value set in the voltage comparing unit 19 is the resistance value of the variable resistor from the voltage value of the power supply voltage Vcc applied to the variable resistance pattern of the fast search control knob 100a. It is preferable to set it equal to a predetermined value up to the voltage value on the ground terminal side which is reduced and formed as a result of being influenced by.

In addition, 21 is a microcomputer that receives a function input signal from the key input unit 11 or the wired remote control unit 100 and outputs a control signal for implementing a function operation. As a result of receiving and recognizing the comparison voltage from the voltage comparing unit 19 as a result, a control signal for causing the tape reel motor 13 to operate in reverse rotation or forward rotation at a predetermined speed to the tape reel motor driver 12. It is preferable to output.

Here, the fast search control knob 100a when the tape mechanism 14 is reproducing while a reproduction input signal from the key input unit 11 or the function input unit 100b of the wired remote controller 100 is input. Is controlled in the a direction or the b direction, the microcomputer 21 controls the tape reel motor 13 to operate after the reproducing operation of the tape reproducing mechanism 14 is paused, and the high-speed search control knob When 14 is adjusted to return to the initial position, the tape reel motor 13 is controlled to rotate in a regeneration operation state, and the reproducing operation is performed in the tape mechanism 14 again. It is desirable to output a signal.

The operation of the present invention made as described above will be described in more detail with reference to FIG.

First, when the playback input signal from the function input unit 100b of the key input unit 11 or the wired remote controller 100 is input to the microcomputer 21, the microcom 21 rotates the tape reel motor 13. Outputting a control signal for operating the tape reel motor driving unit 12 and outputting a control signal for accessing the playback head (not shown in the tape playback mechanism 14) on the tape to perform the playback operation; As the tape is rotated by the rotation of the tape reel motor 13, a reproduction head (not shown) of the tape reproducing mechanism 14 reads audio information recorded on the recording surface of the tape, outputs an audio signal, and preamplifies 15. The signal amplifies the audio signal, while the signal processor 16 processes the signal-amplified audio signal through the R and L channels. A speaker or earphone is a power amplifier for the audio signal to be reproduced output.

On the other hand, when the high speed search control knob 100a of the wired remote control 100 is adjusted in the a direction while performing the playback operation of the tape, the voltage detection arm 104 of the high speed search control knob 100a is wound. The search voltage detection unit 18 contacts the search pattern 101, and the search voltage detection unit 18 detects a search voltage according to the contact position of the winding search pattern 101 through the voltage detection arm 104. In 10), the detected search voltage is compared with a predetermined voltage value to output a comparison signal to the A / D converter 20.

Accordingly, the microcomputer 21 receives and recognizes the comparison signal digitally converted through the A / D converter 20 and controls the playback operation of the tape reproducing mechanism 14 to be paused. As the control signal outputs the winding operation to the motor driving unit 12, the tape reel motor driving unit 12 is driven to cause the tape reel motor 13 to rotate forward at a high speed.

In addition, when the search voltage is detected by the search voltage detector 18 as the high speed search control knob 100a is adjusted in the b direction and the voltage detection arm 104 contacts the rewind search pattern 102. The microcomputer 21 receiving the comparison signal according to the voltage comparison from the voltage comparing unit 19 via the A / D converter 20 outputs a control signal to the tape reel motor driver 12 to output the tape reel. The motor 13 is to be reversed to perform the rewinding operation.

However, while the high speed search operation is performed, the high speed search control knob 100a is adjusted so that the voltage detection arm 104 contacts the initial position between the winding search pattern 101 and the rewind search pattern 102. When the search voltage is not detected by the search voltage detector 18 and the comparison signal is not output by the voltage comparator 19, the microcomputer 21 causes the tape reel motor 13 to be in a regeneration operation state. While the rotational speed is adjusted so as to be rotated at the same time, the playback head of the tape playback mechanism 14 is controlled so that the playback operation of reading audio information from the recording surface of the tape is performed again.

However, when the fast search control knob 100a is adjusted in the a direction or the b direction in the state in which the reproducing operation is not performed in the tape reproducing mechanism 14, the voltage of the fast search control knob 100a is adjusted. In the state where the detection arm 104 does not come into contact with the initial position, the tape reel motor 13 continuously rotates forward or reverse to fast forward or rewind the tape mounted in the tape regeneration mechanism 14. It works.

In addition, the present invention can be modified and modified in various ways without departing from the above-described embodiment, for example, the voltage value of the cold search pattern 101 of the high-speed search control knob (100a) is the largest The voltage detecting arm 104 contacts the pattern portion (i.e., the portion connected to the power supply voltage Vcc terminal) or the pattern portion (ie, the portion connected to the ground side) with the smallest voltage value of the rewind search pattern 102. When the tape reel motor 13 is rotated forward or reverse at the highest speed to perform the winding operation or the rewinding operation, the tape reel motor 13 is brought into contact with the pattern detecting portion near the initial position side. (13) rotates forward or reverse to perform the winding operation or the rewinding operation at a low speed, and depending on the position where the voltage detection arm 104 contacts the winding search pattern 101 or the rewind search pattern 102. rim The speed of rotation of the ruffled motor 13 may also be such that variable.

According to the present invention as described above, by installing a high-speed search control knob for controlling a high-speed search operation such as winding or rewinding in a predetermined portion of the wired remote control that remotely controls the functional operation of the cassette tape player in the control operation of this control knob. By controlling the operation of the tape reel motor so that the tape is wound or rewinding at a high speed, there is an advantage that the functional operation of the cassette tape player using a wired remote control can be made more easily.

Claims (4)

The tape reel motor driving unit 12 is driven by a function key input through the wired remote control 100 or the key input unit 11, and the tape motor 13 is operated to perform a reproducing operation. An audio signal is amplified by the preamplifier 15 and processed by the signal processor 16, and then amplified by the amplifier 17, and then output to the speaker or headphones through the R and L channels. In the player, a fast search control knob (100a) installed in the wired remote control 100 for adjusting the fast search operation of the winding and rewind, and a search voltage for detecting the search voltage from the fast search control knob (100a) A detector 18, a voltage comparator 19 for outputting a comparison signal by comparing the voltage value of the detected search voltage with a preset voltage value, and A for converting the comparison signal into a recognizable digital form. The tape reel motor driving unit 12 and the tape playback mechanism by receiving and recognizing a function input signal for high-speed search of the tape position from the high-speed search control knob 100a of the / D converter 20 and the wired remote controller 100. The microcomputer 21 further includes a microcomputer 21 for outputting a control signal, and the microcomputer 21 receives a comparison signal from the voltage comparing unit 19 via the A / D converter 20. As a result of the recognition, the tape reel motor 13 is rotated forward or backward at a high speed through the tape reel motor driving unit 12 to control the high speed search operation of the tape reproducing mechanism 14. Tape high speed search apparatus for a cassette tape player. According to claim 1, wherein the high-speed search control knob (100a) is a cold search in which a variable resistance is patterned in an arc shape on one side of the top plate of the high-speed search control knob (100a) connected to a power supply voltage (Vcc) terminal On the other side of the pattern 101 and the upper plate of the fast search control knob 100a, a variable resistance is patterned in an arc shape, and one end thereof is connected to the rewind search pattern 102 and the high speed search control knob 100a. A fixed shaft 103 fixed to the bottom plate of the wired remote control 100 and fixedly attached to the fixed shaft 103 through the central opening of the wired remote control unit 100 from the cold search pattern 101 and the rewind search pattern 104. Tape fast search apparatus for a cassette tape player, characterized in that it comprises a voltage detecting arm (104) for detecting the voltage of the. The method of claim 2, wherein the cold search pattern 101 and the rewind search pattern 102 is formed of an integrated variable resistance pattern, the intermediate point between the cold search pattern 101 and the rewind search pattern 102 is A high-speed tape search apparatus for a cassette tape player, characterized in that a variable resistance portion is embedded with an insulator so as to be set as an initial position where voltage detection is not performed. 2. The microcomputer 21 according to claim 1, wherein the microcomputer 21 temporarily stops the playback operation of the tape playback mechanism 14 when the fast search control knob 100a is adjusted while the tape playback mechanism 14 is playing. After that, the tape reel motor 13 is controlled to rotate at high speed, and when the adjustment operation of the high-speed search control knob 100a is returned to the initial position, the tape reel motor 13 is rotated at a regeneration speed. And the tape reproducing mechanism 14 controls to replay the reproducing operation.