KR20030061216A - Apparatus for recording and reproducing audio signal simultaneously - Google Patents

Abstract

PURPOSE: An apparatus for recording and playing audio at the same time is provided to record input audio and play back recorded audio signals at the same time. CONSTITUTION: A play head reads and plays audio signals recorded at an audio tape. An erasing head deletes and erases the audio signals recorded at the audio tape. A recording head records the audio signals inputted from the outside at the audio tape. The erasing head is divided into right and left channels capable of erasing only audio signals recorded at a random channel among the audio signals recorded at right and left channels of the audio tape. New audio signals are recorded at the channel from which the audio signals are erased, by using one channel of the recording head. At the same time, the audio signals recorded at the other channel of the audio tape is played by using the other channel of the play head.

Description

Apparatus for recording and reproducing audio signal simultaneously}

The present invention relates to an apparatus for simultaneously recording and reproducing audio, and more particularly, to read and reproduce an audio signal recorded on a recording medium such as an audio tape, and to record an audio signal input from the outside onto the recording medium. An audio simultaneous recording and reproducing apparatus is provided.

Fig. 1 shows a configuration of a general audio recording and reproducing apparatus, wherein the audio recording and reproducing apparatus includes a playback head (P_Head) for reading out and reproducing an audio signal recorded on an audio tape, and audio recorded on the audio tape. An erasing head (E_Head) for erasing and erasing a signal and a recording head (R_Head) for recording an audio signal input from the outside onto the audio tape are included.

In addition, an erase bias oscillator 10 for oscillating a bias for erasing the audio signal recorded on the audio tape; A recording signal processor 12 for processing a recording signal from an external audio signal; A recording amplifier section (11) for amplifying the level of the recording signal by a predetermined level or more; A reproduction amplifier section 13 for amplifying the audio signal read out by the reproduction head by a predetermined level or more; A reproduction signal processor 14 for processing a reproduction signal of the audio signal amplified above the predetermined level; The control unit 15 for controlling the operation of each of the components is configured to include.

In the meantime, the control unit 15 sets the operation mode of the audio recording and reproducing apparatus to the audio recording mode or the audio reproduction mode according to a user's key input. The erase bias oscillator 10 and the write signal processor 12 are controlled in operation.

Accordingly, as shown in FIG. 2, a bias generated from the erase bias oscillator 10 is applied to the erase head E_Head, and the write signal processor 12 is applied to the write head R_Head. Since the external audio signal processed by the signal is applied, the audio signal already recorded on the audio tape is erased and erased by the erasing head, and the external audio signal is newly recorded by the recording head.

On the other hand, when the control unit 15 sets the operation mode of the audio recording and reproducing apparatus to the audio reproduction mode, as shown in FIG. 3, the reproduction signal processing unit 14 is operated to control the reproduction head. The audio signal read out from the audio tape is processed by P_Head, and then output to the outside through a speaker or the like.

However, in a general audio recording / reproducing apparatus, when an audio signal input from the outside is to be recorded on an audio tape, as shown in FIG. 2, the left / right channel of the audio tape (L / After all audio signals already recorded on the R-CH are erased and erased, the audio signals of the left channel L-CH and the right channel R-CH applied to the recording head are simultaneously recorded. Therefore, there is a problem in that audio simultaneous recording and reproducing operation for recording a new audio signal only in the other channel while reproducing the audio signal recorded in any one channel of the audio tape is impossible.

Therefore, the present invention was created to solve the above problems, and separates an erasing head for erasing and erasing a signal already recorded on an audio tape into left and right channels (L / R-CH). One channel of the erasing head is used to erase and erase an audio signal of any one channel recorded on the audio tape, and then one channel of the recording head is used to record a new audio signal to the corresponding channel from which audio is deleted. On the other hand, it is an object to provide an audio simultaneous recording and reproducing apparatus which simultaneously reads and reproduces an audio signal recorded on the other channel of an audio tape by using another channel of a reproduction head.

1 shows a configuration of a general audio recording and reproducing apparatus,

2 and 3 show the states of the erasing head, the recording head and the reproduction head in the normal audio recording mode and the reproduction mode,

4 shows a configuration of an audio simultaneous recording and reproducing apparatus according to the present invention,

FIG. 5 shows a function control information table stored and managed in a memory included in the audio and recording / reproducing apparatus according to the present invention.

Fig. 6 shows respective states of the erasing head, the recording head, and the reproducing head in the audio simultaneous recording and reproducing mode according to the present invention.

※ Explanation of code for main part of drawing

10, 20: erase bias oscillator 11, 21: recording amplifier

12, 22: recording signal processing unit 13, 23: reproduction amplifier unit

14, 24: playback signal processing unit 15, 25: control unit

26 memory

In the audio simultaneous recording and reproducing apparatus according to the present invention for achieving the above object, an audio device comprising an erasing head for audio erasing, a recording head for audio recording, and a reproduction head for audio reproduction, the audio device comprising: The erasing head is divided into left and right channels so as to selectively erase and erase audio signals recorded on the left and right channels of the audio tape. Erases and erases an audio signal of any one channel recorded on the audio tape, and then, using one channel of the recording head, records a new audio signal in the corresponding channel from which audio is deleted, Read and play back audio signals recorded on the other channels of the audio tape using one channel Characterized in that.

Best Mode for Carrying Out the Invention Preferred embodiments of the simultaneous audio recording and reproducing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 4 shows a configuration of an audio simultaneous recording and reproducing apparatus according to the present invention. The audio simultaneous recording and reproducing apparatus reads and reproduces an audio signal recorded on an audio tape as described above with reference to FIG. A playback head (P_Head), an erasing head (E_Head) for erasing and erasing the audio signal recorded on the audio tape, and a recording head (R_Head) for recording the audio signal input from the outside on the audio tape. The erasing head, as well as the reproduction head and the recording head, may be configured to erase and erase only the audio signal recorded in any one of the audio signals recorded in the left and right channels of the audio tape. L / R-CH).

In addition, an erase bias oscillator 20 for oscillating a bias for erasing the audio signal recorded on the audio tape; A recording signal processor 22 for processing a recording signal from an audio signal input from the outside; A recording amplifier 21 for amplifying the level of the recording signal by a predetermined level or more; A reproduction amplifier section 23 for amplifying an audio signal read out by the reproduction head by a predetermined level or more; A reproduction signal processor (24) for processing a reproduction signal of the audio signal amplified above the predetermined level; A control unit 25 for controlling the operation of each of the above configuration means is included.

On the other hand, the audio simultaneous recording and playback apparatus includes a first channel switch for allowing the bias output from the erase bias oscillator 20 to be selectively applied to only one of the left and right channels of the erase head. L / R SW1); A second channel switch (L / R SW2) for allowing the external audio signal amplified by the recording amplifier 21 to be selectively applied to only one of the left and right channels of the recording head; A third channel switch (L / R SW3) for selectively outputting only an audio signal of any one channel among the left and right channel audio signals read out from the reproduction head; The memory 26 further includes a function control information table for switching the first to third channel switches L / R SW1, 2, and 3 for each function.

In the function control information table stored in the memory, as shown in FIG. 5, an operation mode for each function requested by a user and channel switch control information corresponding thereto are stored in association with each other. ), The first channel switch and the second channel switch are both turned off (L / R-CH OFF) with respect to the erasing head and the recording head. Both the left and right channels are turned on (L / R-CH ON).

In addition, in the normal recording mode (Record_Mode), the first channel switch and the second channel switch are turned on (L / R-CH ON) for both the erase head and the write head, and the third channel switch is Then, both of the left and right channels of the playhead are turned off (L / R-CH ON).

On the other hand, in the audio simultaneous recording / playback mode (Play & Record_Mode), the first channel switch and the second channel switch are each turned on only for the right channel of the erasing head and the recording head, respectively (R-CH ON). The third channel switch is turned on (L-CH ON) only for the left channel of the playhead.

On the other hand, when setting the audio simultaneous recording / playback mode according to a user's key input, the controller 25 searches for a function control information table stored in the memory 26 and associates with the audio simultaneous recording / playback mode. The recorded channel switch control information is read out and confirmed.

And based on the channel switch control information. The first channel switch and the second channel switch are controlled to be in an ON state (R-CH ON) only for the right channel of the erasing head and the recording head, respectively. Only the left channel is controlled to be in an ON state (L-CH ON).

Therefore, when the audio simultaneous recording / playback mode is set as described above, the audio recorded in the right channel (R-CH) among the audio signals already recorded on the audio tape by using the erase bias selectively applied to the right channel of the erase head. After erasing only the signal, a new audio signal applied to the right channel of the recording head is recorded only in the corresponding channel of the audio tape, and the audio signal selected and read out from the left channel (L-CH) of the reproduction head. The audio simultaneous recording and reproducing operation of reproducing and outputting the data is performed.

As mentioned above, preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

In the simultaneous recording and reproducing apparatus according to the present invention, the erasing head for erasing and erasing a signal already recorded on the audio tape is divided into left and right channels (L / R-CH), and One channel of the erasing head is used to erase and erase an audio signal of any one channel recorded on the audio tape, and then one channel of the recording head is used to record a new audio signal to the corresponding channel from which audio is erased. By simultaneously reading out and playing back audio signals recorded on the other channel of the audio tape using the other channel of the playhead, the external input audio to be recorded by the user and the audio signals recorded on the audio tape can be simultaneously recorded and reproduced. In addition, it is possible to provide convenience to the user, as well as a very useful invention for language learning.

Claims (3)

An audio device comprising an erasing head for audio erasing, a recording head for audio recording, and a playback head for audio reproduction, comprising: The erasing head is divided into left and right channels so as to selectively erase erase the audio signal recorded in the left and right channels of the audio tape. In setting the audio simultaneous recording / playback mode, one channel of the erasing head is erased to erase an audio signal of any one channel recorded on an audio tape, and then audio is deleted using one channel of the recording head. And recording a new audio signal in a corresponding channel, and simultaneously reading and reproducing an audio signal recorded in the other channel of the audio tape by using another channel of the reproduction head. The method of claim 1, In front of the erasing head, the recording head, and the reproducing head, first to third channel switches for selecting and using any one of the left and right channels of each head are provided. And recording means for controlling the switching operation of the first to third channel switches. The method of claim 2, And storage means for storing a predetermined control information table for controlling the switching operation of the first to third channel switches for each function.