KR100258592B1 - Device for converting magnetic recording signal and method therefor - Google Patents

Abstract

PURPOSE: An apparatus and method for converting a magnetic recording signal is provided to converts data stored as an analogue signal into a digital signal by separating the data into an analogue tape signal portion and a non-sound portion using an analogue signal recognition device. CONSTITUTION: A deck unit(31) mounts a video tape. An analogue signal reproducing unit(32) reproduces an analogue signal detected in the video tape of the deck unit(31). An ADC(33) converts the analogue signal into a digital signal. A digital recorder(34) records the converted digital information. A signal recognition device(37) separates and recognizes the signal reproduced in the analogue signal reproducing unit(32) into a signal portion and a non-sound portion, and separates a sector automatically. A control unit(35) detects information of the signal recognition device(37) and the digital recorder(34), and judges and controls of the recording of the information or not. A memory(36) stores the information by the control unit(35).

Description

Magnetic recording signal conversion device and method

The present invention relates to a magnetic recording signal converting apparatus and a method thereof, and more particularly, to a magnetic recording signal converting apparatus and method for converting and storing data stored as an analog signal into a digital signal using an analog signal recognizer and a digital recorder. It is about.

In general, a magnetic recording / playback apparatus such as a video cassette tape recorder refers to a device for recording audio and video data on a tape or to play back audio and video data recorded on a tape, which is recorded on a magnetic recording medium such as a video tape. The user can watch the video signal and the audio signal by reproducing the predetermined video signal and the audio signal to a video display device such as a television receiver.

However, a large amount of data cannot be recorded on a video tape of a magnetic recording and reproducing apparatus, and since it is a magnetic medium, it is sensitive to a magnetic field, an electric field, an ambient environment, and a temperature condition, and thus the recorded information is easily damaged due to a lot of noise. In addition, there is a disadvantage that the life of the video tape is short because the data retention period is short.

Therefore, optical disc players and recording apparatuses which record and reproduce data by processing audio and video signals into digital signals are widely used.

That is, an optical disc such as a CD (Compact Disc), LD (Laser Disk), or DVD (Digital Versatile Disk) is produced so that data such as audio or video is recorded in a predetermined effective area and reproduced using an optical disc reproducing apparatus. It is not only a solid storage medium but also the recorded data is not easily damaged by external factors such as temperature and humidity, and the sound quality and image quality are also clearer and clearer than the magnetic recording and reproducing apparatus.

Therefore, recently, a converter for converting data stored in the magnetic recording and reproducing apparatus into digital information again using an optical disc recorder is introduced.

1 is a block diagram of a conventional magnetic recording signal conversion device.

A deck unit 11 into which a video tape is inserted and driven, an analog signal reproducing unit 12 for reproducing the analog signal output from the deck unit 11, and an ADC 13 for converting the reproduced analog signal into a digital signal. And a digital recorder 14 for recording digital information, a control unit 15 for detecting signals of the analog signal reproducing unit 12 and the digital recorder 14 to determine and control whether information is recorded, and a control unit ( And a memory 16 for storing information.

2 is a diagram showing a signal portion and a silent portion section of the analog tape.

As shown in FIG. 2, the analog tape 21 alternately repeats the signal unit 21 in which the analog signal is recorded, and the silent unit 22 in which no information is loaded until one song ends and the next song starts. It is made up to the end of the tape (21).

However, in the conventional magnetic recording signal converting apparatus, when converting an analog signal into a digital signal, the analog signal cannot be recorded in the digital recorder because the analog signal is not distinguished between the signal portion 22 and the silent portion 23 of each song. When recorded from the beginning to the end of the tape 21 as if composed of one piece.

In addition, when the period of the silent portion 23 is long between the signal portion 22 and the signal portion 22, there is a problem that the long silent portion 23 period is recorded as it is, so that the sound is not output for a long time. In particular, the silent portion If there is an abnormal signal 24 or noise 24 within the period (23), there is a problem in that it is recorded in the digital recorder as it is and output during reproduction.

Accordingly, an object of the present invention is to provide a magnetic recording signal conversion apparatus for converting and storing data stored as an analog signal into a digital signal by separating the signal portion and the silent portion of the analog tape using an analog signal recognizer so as to solve the above-described problems, and In providing a method.

1 is a block diagram of a conventional magnetic recording signal conversion device.

2 is a diagram showing a signal portion and a silent portion of an analog tape.

3 is a block diagram of a magnetic recording signal conversion device of the present invention.

4 is a flowchart of the magnetic recording signal conversion method of the present invention.

* Explanation of symbols for main parts of the drawings

31: deck portion 32: analog signal reproduction unit

33: ADC 34: Digital Recorder

35 control unit 36 memory

37: Signal recognizer

The magnetic recording signal conversion apparatus according to the present invention for achieving the above object includes a deck unit on which a video tape is mounted, an analog signal reproducing unit for reproducing an analog signal detected from the video tape of the deck unit, and a digital signal of the reproduced analog signal. An ADC for converting the signal, a digital recorder for recording the converted digital information, a signal recognizer for recognizing the signal reproduced by the analog signal reproducing unit into a signal unit and a silent unit, and automatically classifying sectors, a signal recognizer, And a control unit for detecting and recording information of the digital recorder and determining whether to record the information, and a memory for storing the information by the control unit.

In addition, in the magnetic recording signal conversion method according to the present invention, when the analog signal is reproduced from the first song in the deck unit, the signal recognizer performs a first step of determining whether music or an audio signal is being reproduced; In the first section of the optical disc, if the signal is not recognized, the second step is to be fed back first; the third step is to judge whether the silent part is in progress when the first music or voice signal is finished; In the ready state for the song recording, the existing signal is assigned to the music of the previous number, and if it does not proceed, the fourth step is fed back to the second step, and again the signal recognizer is the fifth step of determining whether the music or voice signal is being reproduced; When the signal is recognized, it is stored in the second section of the optical disc of the digital recorder and the signal is recognized. Otherwise, the sixth step is fed back to the above four steps, the seventh step of determining whether the silent part is in progress when the second music or voice signal ends, and when the silent part is in progress, the digital recorder is ready to record the next song and the existing signal is The music is designated as the previous number, and if it does not proceed, the eighth step is fed back to the sixth step, and finally, it is characterized by comprising the ninth step of determining whether the playback of the analog tape is finished and completing the tape reproducing operation. .

Hereinafter, a configuration and an embodiment of the present invention will be described with reference to the accompanying drawings.

3 is a block diagram of the magnetic recording signal conversion device of the present invention.

Deck part 31 to which a video tape is mounted, an analog signal reproducing unit 32 for reproducing the analog signal detected by the video tape of the deck unit 31, and an ADC 33 for converting the reproduced analog signal into a digital signal. And a digital recorder 34 for recording the converted digital information, a signal recognizer 37 for recognizing the signal reproduced by the analog signal reproducing unit 32 into a signal unit and a silent unit, and automatically classifying sectors. And a control unit 35 which detects information of the signal recognizer 37 and the digital recorder 34 to determine and control whether or not the information is recorded, and a memory 36 which stores the information by the control unit 35. .

The operation principle of the magnetic recording signal conversion device configured as described above will be described according to the flowchart shown in FIG.

When the analog signal output from the deck of the magnetic recording converter is reproduced from the first song in the analog signal reproducing unit (S41), the signal recognizer determines whether music or audio signals are reproduced (S42). When the signal is recognized by the signal recognizer is stored in the first section of the optical disk of the digital recorder (S43), if the signal is not recognized is fed back to the beginning and reproduced from the beginning.

In the next step, when the first music or voice signal ends, it is determined whether the silent part is in progress (S44), and when the silent part is progressed, the digital recorder is ready to record the next song (S45) and the existing signal is designated as the music of the previous number ( S46), if not proceeded to the first music or voice signal section is fed back.

The signal recognizer again determines whether a music or audio signal is being reproduced (S47), and when the signal is recognized, stores it in the second section of the optical disc of the digital recorder (S48), and if the signal is not recognized, returns to the first silent section. do.

When the second music or voice signal is finished in the next step, it is determined whether the silent portion is in progress (S48), and when the silent portion is progressed, the digital recorder is ready to record the next song (S50). S51).

Finally, it is judged whether the playback of the analog tape is finished (S52), and the tape reproducing operation is completed (S53).

That is, by the above steps, the entire song is automatically divided into sectors, and if necessary, information on the song may be used as an index using a silent section.

In addition, the signal recognizer removes an abnormal signal or noise in the silent section of the analog signal, and the controller determines that only a predetermined silent section is recognized by the controller.

In addition, when the silent section of the analog signal reaches a predetermined time or more, the signal recognizer ignores and deletes the long silent section, and the controller determines that only the predetermined silent section is recognized.

As described above, the present invention converts and stores the data stored as an analog signal into a digital signal by dividing the signal portion and the silent portion of the analog tape using an analog signal recognizer, thereby eliminating abnormal signals and noise and reducing long silent periods. In addition, by recording additional information about the song in the silent section, it is possible to obtain a quick search function and the effect of improving the product quality.

Claims (5)

A magnetic recording conversion apparatus for storing information by converting an analog signal output from a magnetic recording / reproducing apparatus into a digital signal using an optical disk recorder, comprising: a deck unit on which a video tape is mounted; An analog signal reproducing unit for reproducing the analog signal detected from the video tape of the deck unit; An ADC for converting a reproduced analog signal into a digital signal; A digital recorder for recording the converted digital information; A signal recognizer that recognizes the signal reproduced by the analog signal reproducing unit into a signal unit and a silent unit and recognizes the sector automatically; A control unit which detects information of the signal recognizer and the digital recorder to determine and control whether the information is recorded; And a memory for storing information by the control unit. The method of claim 1, wherein the signal recognizer removes an abnormal signal or noise in the silent section of the analog signal by the controller and recognizes only a predetermined silent section. Device. The method of claim 1, wherein when the silent section of the analog signal is longer than the predetermined time, the signal recognizer deletes the long silent section by ignoring the predetermined silent section, and recognizes only the predetermined silent section. Magnetic recording signal conversion device characterized in that. The magnetic recording signal converting apparatus of claim 1, wherein information about a corresponding song is recorded in the silent section using the digital recorder. A magnetic recording conversion method of converting an analog signal output from a magnetic recording / reproducing apparatus into a digital signal using an optical disc recorder to store information. When the analog signal is reproduced from the first song in the deck unit, the signal recognizer uses a music or audio signal. A first step of judging whether or not is reproduced; A second step of storing the data in the first section of the optical disc of the digital recorder when the signal is recognized and returning for the first time if the signal is not recognized; A third step of determining whether the silent part is in progress when the first music or voice signal is finished; A fourth step in which the silent part is ready to record the next song in the digital recorder and the existing signal is designated as the music of the previous number, and if not, the fourth step is returned to the second step; In step 5, the signal recognizer determines whether the music or voice signal is being reproduced; A sixth step of storing the data in the second section of the optical disc of the digital recorder when the signal is recognized and feeding back to the above four steps if the signal is not recognized; A seventh step of determining whether the silent part is in progress when the second music or voice signal is finished; When the silent portion is in progress, the digital recorder is ready to record the next song, the existing signal is assigned to the music of the previous number, and if not, the eighth step is fed back to the sixth step; And finally, a ninth step of judging whether the playback of the analog tape has ended and completing the playback operation of the tape.

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