KR200141209Y1 - Recording/reproducing equipment for a combined use for digital and analog - Google Patents
Recording/reproducing equipment for a combined use for digital and analog Download PDFInfo
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- KR200141209Y1 KR200141209Y1 KR2019930003775U KR930003775U KR200141209Y1 KR 200141209 Y1 KR200141209 Y1 KR 200141209Y1 KR 2019930003775 U KR2019930003775 U KR 2019930003775U KR 930003775 U KR930003775 U KR 930003775U KR 200141209 Y1 KR200141209 Y1 KR 200141209Y1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Abstract
본 고안은 디지탈/아날로그 기록 재생 겸용 장치에 관한것으로, 종래에는 아날로그 또는 디지탈신호에 따라 주파수 특성을 맞춘 기록 재생 처리부를 각기 구현함으로써 제작비용이 상승하고 공간이용 효율이 저하되는 문제점이 있었다.The present invention relates to a digital / analog recording and reproducing apparatus. In the related art, a recording and reproducing processing unit having a frequency characteristic according to an analog or digital signal is implemented to increase manufacturing costs and to reduce space utilization efficiency.
이러한 점을 감안하여 본 발명에서는 아날로그 또는 디지탈 신호에 따라 기록증폭기 또는 재생증폭기이 특성을 변화시킴으로써 해당신호를 기록 또는 재생할 수 있게 구성한다. 이에따라, 기록 재생 처리부가 아날로그 또는 디지탈신호에 상관없이 단일화됨으로 제작비용이 절감되고 공간이용 효율이 향상된다.In view of this, in the present invention, the recording amplifier or the reproduction amplifier changes the characteristics according to the analog or digital signal so that the corresponding signal can be recorded or reproduced. Accordingly, the recording and reproducing processing unit is unified regardless of the analog or digital signal, thereby reducing the production cost and improving the space utilization efficiency.
Description
제1도는 종래 브이씨알 기록 재생 증폭회로의 블럭도.1 is a block diagram of a conventional VRC recording / reproducing amplifier circuit.
제2도는 본 고안 디지탈/아날로그 기록 재생 겸용 장치의 블럭도.2 is a block diagram of a digital / analog recording and reproducing apparatus of the present invention.
제3도는 본 고안에 따른 다른 실시예.3 is another embodiment according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1,11 : 아날로그 신호처리부 2,5,14 : 기록증폭기1,11: analog signal processor 2,5,14: record amplifier
3,6,16 : 재생증폭기 4,12 : 디지탈신호처리부3,6,16: reproducing amplifier 4,12: digital signal processing unit
13 : 구동전류조절부 15 : 자동이득제어부13: drive current control unit 15: automatic gain control unit
SW1~SW3: 스위치 HA1, HD1, HD11: 헤드SW 1 to SW 3 : Switch HA 1 , HD 1 , HD 11 : Head
본 고안은 브이씨알의 기록 재생 증폭기 공용화에 대한 것으로 특히, 아날로그 또는 디지탈신호의 기록 또는 재생에 따라 해당 증폭기의 주파수 특성을 조절함으로써 기록 또는 재생용 증폭기를 공용화하는 디지탈/아날로그 기록 재생 겸용 장치에 관한 것이다.The present invention relates to the common use of the recording and reproducing amplifier of V-Cal, and more particularly, to a digital / analog recording and reproducing apparatus for sharing the amplifier for recording or reproducing by adjusting the frequency characteristic of the amplifier according to the recording or reproducing of an analog or digital signal. will be.
제1도는 종래 브이씨알의 기록 재생 증폭회로의 블럭도로서 이에 도시된 바와 같이, 아날로그신호(A1)를 필터링하여 변조시키는 아날로그 신호처리부(1)이 출력(A2)을 소정레벨 증폭하여 헤드(HA1)를 통해 증폭신호(A3)를 기록하는 기록증폭기(2)와, 헤드(HA1)의 아날로그 검출신호(A3)를 일정레벨 증폭하는 재생증폭기(3)와, 디지탈신호(V1)를 필터링하여 변조시키는 디지탈신호처리부(4)의 출력(V2)을 일정레벨 증폭하여 헤드(HD1)를 통해 증폭신호(V3)를 기록하는 기록증폭기(5)와, 헤드(HD1)의 디지탈검출신호(V4)를 일정레벨 증폭하는 재생증폭기(6)로 구성된 것으로, 상기 기록증폭기(2)(5)는 각기 기록신호의 주파수특성에 맞게 설계되어 진다.1 is a block diagram of a conventional recording / reproducing amplification circuit. As shown in FIG. 1 , an analog signal processor 1 for filtering and modulating an analog signal A 1 amplifies a predetermined level of an output A 2 to a head. write amplifier (2), a reproducing amplifier 3, a digital signal to a certain level, amplifying the analog detection signal (a 3) of the head (HA 1) for recording the amplified signal (a 3) through (HA 1) ( and digital signal processing (recording amplifier (5) for recording the amplified signal (V 3) to the output (V 2) a certain level, amplified through the head (HD 1) a 4) for modulating filters the V 1), the head ( The reproducing amplifier 6 amplifies the digital detection signal V 4 of the HD 1 ) by a predetermined level, and the recording amplifiers 2 and 5 are designed to match the frequency characteristics of the recording signals.
이와 같은 종래 회로의 동작과정을 설명하면 다음과 같다.Referring to the operation of the conventional circuit as follows.
기록모드의 경우 아날로그신호를 기록하기 위해 아날로그 기록모드를 선택하면 아날로그 입력신호(A1)는 아날로그신호처리부(1)에서 필터링된 후 변조된 후 변조되고 이 변조된 신호(A2)는 기록증폭기(2)에서 일정레벨증폭되어 증폭된 신호(A3)가 헤드(HA1)에 의해 테이프에 기록된다.In the case of the recording mode, when the analog recording mode is selected to record an analog signal, the analog input signal A 1 is filtered by the analog signal processing unit 1, and then modulated, and the modulated signal A 2 is recorded. The signal A 3 amplified and amplified at (2) is recorded on the tape by the head HA 1 .
또한, 디지탈신호를 기록하기 위해 디지탈기록 모드를 선택하면 디지탈입력신호(V1)는 디지탈신호처리부(4)에서 필터링된 후 변조되고 이 변조된 신호(V2)는 기록증폭기(5)에서 일정레벨 증폭되어 증폭된 신호(A3)가 헤드(HD1)에 의헤 테이프에 기록된다.In addition, when the digital recording mode is selected to record the digital signal, the digital input signal V 1 is filtered by the digital signal processor 4 and then modulated, and the modulated signal V 2 is constant in the recording amplifier 5. The level amplified amplified signal A 3 is recorded on the tape by the head HD 1 .
한편, 재생모드의 경우 아날로그신호가 기록되어 아날로그 재생모드를 선택하면 헤드(HA1)의 아날로그 검출신호(A4)는 재생증폭기(3)에서 소정레벨 증폭된 후 복조되어 원래의 아날로그신호로 재생되어 진다.On the other hand, in the regeneration mode, when the analog signal is recorded and the analog regeneration mode is selected, the analog detection signal A 4 of the head HA 1 is amplified by a predetermined level in the reproducing amplifier 3 and then demodulated to reproduce the original analog signal. It is done.
그리고, 디지탈신호가 기록되어 디지탈 재생모드를 선택하면 헤드(HD1)의 아날로그 검출신호(V4)는 재생증폭기(6)에서 소정레벨 증포된 후 복조되어 원래의 디지탈 신호로 재생되어진다.When the digital signal is recorded and the digital reproduction mode is selected, the analog detection signal V 4 of the head HD 1 is amplified by a predetermined level in the reproduction amplifier 6 and then demodulated and reproduced as the original digital signal.
그러나, 종래에는 디지탈 또는 아날로그 신호에 따라 기록증폭기 및 재생증폭기를 주파수 특성에 맞게 각기 구성함으로써 제작비용이 상승할 뿐 아니라 칩(chip) 장착공간이 커져서 비효율적인 문제점이 있었다.However, in the related art, the recording and reproducing amplifiers are configured according to the frequency characteristics according to the digital or analog signals, thereby increasing the manufacturing cost and increasing the chip mounting space.
본 고안은 이러한 종래의 문제점을 해결하기 위하여 기록하려는 신호를 판별함에 따라 신호처리를 위한 루프(loop)를 선택하고 해당신호에 따라 기록증폭기의 전류소스를 조정함에 의해 테이프에 기록하고 재생시 기록된 신호를 판별함에 따라 재생증폭기의 이득을 자동으로 조정하여 해당 재생동작을 수행하는 디지탈/아날로그 기록 재생 겸용 장치를 안출한 것으로, 이를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.In order to solve this problem, the present invention selects a loop for signal processing according to the signal to be recorded and adjusts the current source of the recording amplifier according to the corresponding signal to record on the tape, A digital / analog recording and reproducing apparatus for automatically adjusting the gain of a reproducing amplifier and performing a corresponding reproducing operation according to the determination of a signal is provided. The detailed description will be given below with reference to the accompanying drawings.
제2도는 본 고안 디지탈/아날로그 기록 재생 겸용 장치의 블럭도로서 이에 도시한 바와 같이, 아날로그신호(VA1)를 필터링하여 변조처리하는 아날로그신호치리부(11)와, 디지탈신호(VD1)를 필터링하여 변조처리하는 디지탈신호처리부(12)와 아날로그/디지탈변조신호(CS1)에 따라 상기 아날로그신호처리부(11)의 출력(VA2) 또는 디지탈신호처리부(12)이 출력(VD2)을 선택하는 스위치(SW1)와, 상기 아날로그/디지탈 판별신호(CS1)에 따라 구동전류(I1)를 조절하는 구동전류조절부(13)와, 이 구동전류조절부(13)의 출력(I1)에 따라 주파수 특성이 변화되어 상기 스위치(SW1)의 출력을 일정레벨 증폭하는 기록증폭기(14)와, 상기 아날로그/디지탈 판별신호(CS1)에 따라 상기 기록증폭기(15)의 출력(V1)을 기록, 재생하기 위한 헤드(HD11)의 출력(V2)을 일정레벨 증폭하고 복조처리하는 재생증폭기(16)와, 상기 아날로그/디지탈판별신호(CS1)에 따라 상기 재생증폭기(16)의 특성을 조정하는 자동이득제어부(15)로 구성한 것으로 상기 헤드(HD11)는 아날로그 및 디지탈신호를 기록 또는 재생할 수 있는 광대역 주파수 특성을 갖는 단일헤드이다.2 is a block diagram of a digital / analog recording and reproducing apparatus of the present invention. As shown in FIG. 2, the analog signal processing unit 11 for filtering and modulating the analog signal VA 1 and the digital signal VD 1 are shown. According to the digital signal processor 12 for filtering and modulating and the analog / digital modulated signal CS 1 , the output VA 2 of the analog signal processor 11 or the digital signal processor 12 outputs the output VD 2 . A switch SW 1 to select, a drive current controller 13 for adjusting a drive current I 1 according to the analog / digital discrimination signal CS 1 , and an output of the drive current controller 13 A frequency characteristic is changed according to I 1 ) and the recording amplifier 14 amplifies the output of the switch SW 1 by a predetermined level, and the output of the recording amplifier 15 according to the analog / digital discrimination signal CS 1 . The output V 2 of the head HD 11 for recording and playing (V 1 ) is increased by a constant level. Width demodulation process the head to be configured as a reproducing amplifier 16 and automatic gain controller 15 for adjusting the characteristic of the reproduction amplifier 16 in accordance with the analog / digital discrimination signal (CS 1) to (HD 11) Is a single head with wideband frequency characteristics capable of recording or reproducing analog and digital signals.
제3도는 본 고안에 따른 다른 실시예로서 이에 도시한 바와 같이, 아날로그신호처리부(11), 디지탈신호처리부(12), 구동전류조절부(13), 기록증폭기(14), 자동이득제어부(15) 및 재생증폭기(16) 그리고 스위치(SW1)로 제2도의 회로와 동일하게 구성하고, 기록 모드시 아날로그헤드(HA1) 또는 디지탈헤드(HD1)에 접속시키는 스위치(SW2)와, 재생모드시 상기 아날로그/디지탈 판별신호(CS1)에 따라 아날로그 헤드(HA1) 또는 디지탈헤드(HD1)를 선택하는 스위치(SW3)를 부가하여 구성한다.3 is another embodiment according to the present invention, as shown therein, the analog signal processing unit 11, the digital signal processing unit 12, the drive current control unit 13, the recording amplifier 14, the automatic gain control unit 15 ) and a switch (SW 2) for connecting the reproducing amplifier 16 and the switch (SW 1) to a second degree the same configuration as the circuit, the analog head during the recording mode (HA 1), or a digital head (HD 1) and, In the regeneration mode, a switch SW 3 for selecting the analog head HA 1 or the digital head HD 1 is added in accordance with the analog / digital discrimination signal CS 1 .
이와같이 구성한 본 고안 디지탈/아날로그 기록 재생 겸용 장치의 동작 및 효과를 상세히 설명하면 다음과 같다.The operation and effects of the inventive digital / analog recording / reproducing apparatus configured as described above will be described in detail as follows.
방송신호 또는 브이씨알 시청중에 영상신호를 기록할 경우 아날로그신호를 기록하기 위해 아날로그 기록모드를 선택하거나 기록모드의 선택시 복조처리된 영상신호를 점검함에 따라 아날로그 신호의 기록으로 판별하면 아날로그/디지탈 판별신호(CS1)에 의해 스위치(SW1)가 아날로그신호처리부(11)에 접속된다.When recording a video signal while watching a broadcast signal or VR, select the analog recording mode to record the analog signal or check the demodulated video signal when selecting the recording mode. The switch SW 1 is connected to the analog signal processing unit 11 by the signal CS 1 .
이에따라, 아날로그 입력신호(VA1)가 아날로그신호처리부(11)에서 필터링된 후 변조되고 이 변조된 신호(VA2)는 스위치(SW1)를 통해 기록증폭기(14)에 입력되어 소정레벨 증폭되며 이 증폭된 신호(V1)는 헤드(HD11)에 입력됨에 따라 테이프에 기록된다.Accordingly, the analog input signal VA 1 is filtered after being filtered by the analog signal processor 11, and the modulated signal VA 2 is input to the recording amplifier 14 through the switch SW 1 to be amplified by a predetermined level. This amplified signal V 1 is recorded on the tape as it is input to the head HD 11 .
이때, 아날로그/디지탈판별신호(CS1)에 따라 구동전류조절부(13)가 구동전류(I1)를 조절함에 의해 기록증폭기(14)는 증폭대역 및 특성이 아날로그신호에 적당하게 변환된다.At this time, by the driving current adjusting unit 13 adjusting the driving current I 1 according to the analog / digital discrimination signal CS 1 , the amplifying band and characteristics of the recording amplifier 14 are appropriately converted into an analog signal.
또한, 디지탈신호를 기록하기 위해 디지탈 기록모드를 선택하거나 기록모드의 선택시 복조처리된 영상신호를 점검함에 따라 디지탈 신호의 기록으로 판별하면 아날로그/디지탈판별신호(CS1)에 의해 스위치(SW1)가 디지탈신호처리부(12)에 접속된다.In addition, when the digital recording mode is selected to record the digital signal or the demodulated video signal is checked when the recording mode is selected, the recording signal SW 1 is determined by the analog / digital discrimination signal CS 1 when the digital signal is recorded. Is connected to the digital signal processing unit 12.
한편, 재생모드선택시 아날로그 재생모드를 선택하거나 아날로그 기록신호를 판별하면 아날로그/디지탈 판별신호(CS1)를 입력받은 자동이득제어부(15)가 상기 재생증폭기(16)의 특성을 아날로그 신호대역에 맞도록 변화시킨다.On the other hand, when the analog playback mode is selected or the analog recording signal is discriminated when the playback mode is selected, the automatic gain control unit 15 which receives the analog / digital discrimination signal CS 1 receives the characteristics of the playback amplifier 16 in the analog signal band. Change it to fit.
이에따라, 헤드(HD11)가 테이프의 기록신호를 검출하면 이 검출신호(V2)는 재생증폭기(16)에 소정레벨 증폭된 후 복조되어 원래의 아날로그신호(VO)가 출력된다.Yiettara, when the head (HD 11) detect the address signal of the tape detection signal (V 2) is demodulated after being amplified to a predetermined level, reproduction amplifier 16, the original analog signal (V O) is outputted.
그리고, 재생모드 선택시 디지탈 재생모드를 선택하거나 디지탈 기록신호를 판별하면 아날로그/디지탈 판별신호(CS1)가 입력된 자동이득제어부(15)는 상기 재생증폭기(16)의 특성을 디지탈신호 대역에 맞도록 변화킨다.When the digital regeneration mode is selected or the digital recording signal is discriminated when the regeneration mode is selected, the automatic gain control unit 15 to which the analog / digital discrimination signal CS 1 is inputted sets the characteristics of the reproducing amplifier 16 to the digital signal band. Change it to fit.
이에따라, 헤드(HD11)가 테이프의 기록신호를 검출하면 이 검출신호(V2)는 재생증폭기(16)에서 소정레벨 증폭된 후 복조처리되어 원래의 디지탈신호(VO)가 출력된다.Accordingly, when the head HD 11 detects the recording signal of the tape, the detection signal V 2 is amplified by a predetermined level in the reproduction amplifier 16 and then demodulated to output the original digital signal V O.
그리고, 제3도의 다른 실시예는 아날로그 또는 디지탈신호를 각기 기록 재생하기 위한 아날로그 헤드(HA1)와 디지탈 헤드(HD1)를 각기 설치하여 기록 재생 특성을 향상시키는 방식이다.In another embodiment of FIG. 3, an analog head HA 1 and a digital head HD 1 are respectively provided for recording and reproducing analog or digital signals, respectively, to improve recording and reproduction characteristics.
즉, 기록 모드시 기록 증폭기(14)를 거쳐 나온 신호(V1)가 아날로그 신호이면 아날로그 헤드(HA1)에 접속되고 디지탈 신호이면 디지탈 헤드(HD1)에 접속시키는 스위치(SW2)가 있다.That is, in the recording mode, there is a switch SW 2 that is connected to the analog head HA 1 if the signal V 1 outputted through the recording amplifier 14 is an analog signal, and to the digital head HD 1 if the digital signal is a digital signal. .
또한, 재생 모드시 아날로그 재생이면 아날로그 헤드(HA1)를 재생 증폭기(16)에 접속하고 디지탈 재생이면 디지탈 헤드(HD1)를 상기 재생 증폭기(16)에 접속시키는 스위치(SW3)가 있다.In addition, there is a switch SW 3 that connects the analog head HA 1 to the reproducing amplifier 16 in analog regeneration in the regeneration mode, and the digital head HD 1 to the reproducing amplifier 16 in the digital regeneration.
스위치(SW2)와 스위치(SW2)는 아날로그/디지탈 판별신호(CS1)에 의해 스위칭 동작을 수행한다.The switch SW 2 and the switch SW 2 perform a switching operation by an analog / digital determination signal CS 1 .
상기에서 상세히 설명한 바와 같이 본 발명 브이씨알의 기록 재생 대역조절회로는 아날로그 또는 디지탈 판별에 따라 기록증폭기 또는 재생증폭기의 특성을 해당 신호에 맞게 변화시킴으로써 기록 재생처리부를 단일화하여 제작비용을 절감시킬 뿐 아니라 공간 이용의 효율성을 향상시킬 수 있다.As described in detail above, the recording and reproducing band adjustment circuit of the present invention VRL not only reduces the production cost by unifying the recording and reproducing unit by changing the characteristics of the recording amplifier or the reproducing amplifier according to the corresponding signal according to analog or digital discrimination. The efficiency of space use can be improved.
Claims (2)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930003775U KR200141209Y1 (en) | 1993-03-15 | 1993-03-15 | Recording/reproducing equipment for a combined use for digital and analog |
| DE69410831T DE69410831T2 (en) | 1993-01-05 | 1994-01-04 | Device for recording and reproducing digital and analog video signals |
| US08/177,169 US5506733A (en) | 1993-01-05 | 1994-01-04 | Apparatus for recording and reproducing digital and analog video signals using two analog record/reproduce heads and two digital record/reproduce heads, respectively |
| EP94400015A EP0606180B1 (en) | 1993-01-05 | 1994-01-04 | Apparatus for recording and reproducing digital/analog video signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930003775U KR200141209Y1 (en) | 1993-03-15 | 1993-03-15 | Recording/reproducing equipment for a combined use for digital and analog |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940023400U KR940023400U (en) | 1994-10-22 |
| KR200141209Y1 true KR200141209Y1 (en) | 1999-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930003775U KR200141209Y1 (en) | 1993-01-05 | 1993-03-15 | Recording/reproducing equipment for a combined use for digital and analog |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200141209Y1 (en) |
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1993
- 1993-03-15 KR KR2019930003775U patent/KR200141209Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR940023400U (en) | 1994-10-22 |
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