JP3116470B2 - Magnetic recording / reproducing device - Google Patents
Magnetic recording / reproducing deviceInfo
- Publication number
- JP3116470B2 JP3116470B2 JP03288315A JP28831591A JP3116470B2 JP 3116470 B2 JP3116470 B2 JP 3116470B2 JP 03288315 A JP03288315 A JP 03288315A JP 28831591 A JP28831591 A JP 28831591A JP 3116470 B2 JP3116470 B2 JP 3116470B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- recording
- frequency
- input
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Television Signal Processing For Recording (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、映像信号と音声信号、
または、そのいずれかの複製を作成するための磁気記録
再生装置に関する。The present invention relates to a video signal and an audio signal,
Alternatively, the present invention relates to a magnetic recording / reproducing apparatus for creating any one of the duplicates.
【０００２】[0002]
【従来の技術】近年、映像信号とか音声信号を同時に多
量複製するための磁気記録再生装置の要望が高くなって
いる。2. Description of the Related Art In recent years, there has been an increasing demand for a magnetic recording / reproducing apparatus for simultaneously copying a large amount of video signals and audio signals.
【０００３】以下に従来の磁気記録再生装置について図
面を参照しながら説明する。図６に示すように、磁気記
録再生装置では磁気記録するために、入力端子２７に入
力した映像信号は、ＡＧＣ回路２８で自動振幅調整さ
れ、Ｙ／Ｃ分離器２９で輝度信号と色信号に分離され、
輝度信号はエンハンサー３０で高域強調され、周波数変
調器（ＦＭ ＭＯＤと略す）３１で周波数変調されハイ
パスフィルタ（以下ＨＰＦと略す）３２で低域信号除去
されたのち、記録増幅器３６に入力される。一方、Ｙ／
Ｃ分離器２９で分離された色信号は、ＡＣＣ回路３３で
振幅調整されたのち、周波数変換器３４で低域変換さ
れ、ローパスフィルタ（以下ＬＰＦと略す）３５で高域
除去されたのち、記録増幅器３６に入力され、周波数変
調された輝度信号と合成し増幅されるなどの信号処理を
受けたのち、磁気ヘッド３７で磁気テープ３８に記録さ
れる。A conventional magnetic recording / reproducing apparatus will be described below with reference to the drawings. As shown in FIG. 6, in the magnetic recording / reproducing apparatus, in order to perform magnetic recording, a video signal input to an input terminal 27 is automatically amplitude-adjusted by an AGC circuit 28, and converted into a luminance signal and a chrominance signal by a Y / C separator 29. Separated,
The luminance signal is emphasized in the high band by an enhancer 30, frequency-modulated by a frequency modulator (abbreviated to FM MOD) 31, and subjected to low-frequency signal removal by a high-pass filter (hereinafter abbreviated to HPF) 32, and then input to a recording amplifier 36. . On the other hand, Y /
The color signal separated by the C separator 29 is amplitude-adjusted by the ACC circuit 33, is low-frequency-converted by the frequency converter 34, is removed by the low-pass filter (hereinafter abbreviated as LPF) 35, and is then recorded. After being input to an amplifier 36 and subjected to signal processing such as synthesis and amplification with a frequency-modulated luminance signal, the signal is recorded on a magnetic tape 38 by a magnetic head 37.
【０００４】以上のように構成された磁気記録再生装置
を用いて、映像信号の複製を作成する場合について、以
下その動作を説明する。まず、映像信号の複製を同時に
多量作成する場合、単一信号源からでた信号は、必要と
する複製数と同数の上記したような信号処理を行う信号
複製作成装置を備えた全体構成とする必要があり、各信
号複製作成装置内で磁気記録するための信号処理は、同
一の信号処理となり、信号複製作成装置全体が複雑にな
りやすいという構成であった。[0004] The operation of the case of making a copy of a video signal using the magnetic recording / reproducing apparatus configured as described above will be described below. First, in the case where a large number of copies of a video signal are simultaneously made, a signal output from a single signal source has an overall configuration including a signal copy creation device for performing the same signal processing as the number of required copies as described above. In this case, the signal processing for magnetic recording in each signal duplication creating apparatus is the same signal processing, and the entire signal duplication creating apparatus tends to be complicated.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、各信号複製作成装置内で同一の信号処理が
行われ、必要とする複製数と同数の信号複製作成装置で
重複した信号処理が行われるために、信号複製作成装置
全体が複雑になりやすく、複数の信号複製作成装置間で
処理された記録信号の周波数特性やレベルに差が発生す
るという問題点を有していた。However, in the above-described conventional configuration, the same signal processing is performed in each signal duplication generating apparatus, and the same signal processing is performed by the same number of signal duplication generating apparatuses as required. As a result, the entire signal duplication creating apparatus tends to be complicated, and there is a problem that a difference occurs in the frequency characteristic and level of the recorded signal processed among the plurality of signal duplication creating apparatuses.
【０００６】本発明は上記従来の問題点を解決するもの
で、複数の信号複製作成装置内で行われる同一の重複し
た信号処理過程をなくすることで、信号複製作成装置全
体の構成を簡素化し、各記録端末機で記録される信号の
周波数特性やレベル差をなくする磁気記録再生装置を提
供することを目的とする。[0006] The present invention solves the above-mentioned conventional problems, and eliminates the same redundant signal processing steps performed in a plurality of signal duplicating apparatuses, thereby simplifying the configuration of the entire signal duplicating apparatus. It is another object of the present invention to provide a magnetic recording / reproducing apparatus that eliminates frequency characteristics and level differences of signals recorded by each recording terminal.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明の磁気記録再生装置は、輝度信号と色信号の
処理過程内に、単一の信号処理器と、複数の記録端末機
と、信号処理された周波数変調輝度信号と信号処理され
た低域変換色信号をそれぞれ複数の記録端末機に分配す
る信号分配器を有する構成となっている。To achieve the above object, a magnetic recording / reproducing apparatus according to the present invention comprises a single signal processor and a plurality of recording terminals in a process of processing a luminance signal and a chrominance signal. And a signal distributor that distributes the signal-processed frequency-modulated luminance signal and the signal-processed low-frequency conversion color signal to a plurality of recording terminals.
【０００８】[0008]
【作用】本発明は上記した構成において、複数の信号複
製作成装置内で行われる同一の重複した信号処理過程を
なくすることで、信号複製作成装置全体の構成を簡素化
することができ、また、信号処理過程が単一となるた
め、複数の記録端末機で記録される記録信号の周波数特
性やレベル差をなくすることができる。According to the present invention, in the above-described configuration, by eliminating the same redundant signal processing steps performed in a plurality of signal duplication producing devices, the overall configuration of the signal duplication producing device can be simplified. Since the signal processing process is single, it is possible to eliminate frequency characteristics and level differences of recording signals recorded by a plurality of recording terminals.
【０００９】[0009]
【実施例】（実施例１）以下本発明の一実施例につい
て、図面を参照しながら説明する。(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１に示すように、映像信号の複製を同時
に多量作成する場合の磁気記録再生装置は、単一の信号
処理器１と、信号分配器２と、複数の記録端末機３で構
成されている。As shown in FIG. 1, a magnetic recording / reproducing apparatus for producing many copies of a video signal simultaneously comprises a single signal processor 1, a signal distributor 2, and a plurality of recording terminals 3. Have been.
【００１１】以上のように構成された磁気記録再生装置
について、図１を用いてその動作を説明する。The operation of the magnetic recording / reproducing apparatus configured as described above will be described with reference to FIG.
【００１２】まず、映像信号は、信号処理器１で信号処
理され、信号分配器２に入力され、信号分配器で複数の
信号に分岐し、複数の記録端末機３に供給されたのち、
各記録端末機で磁気テープに記録される。First, a video signal is signal-processed by a signal processor 1, input to a signal distributor 2, branched into a plurality of signals by the signal distributor, and supplied to a plurality of recording terminals 3.
Each recording terminal records the data on a magnetic tape.
【００１３】つぎに、複数使用する記録端末機３の構成
を図２を用いて説明する。周波数変調された入力輝度信
号は、入力端子４から入力し、バッファ増幅器５でイン
ピーダンス変換され、ＨＰＦ６で低域除去されたのち、
記録増幅器７に入力される。一方、低域変換入力色信号
は入力端子１０から入力し、バッファ増幅器１１でイン
ピーダンス変換され、ＬＰＦ１２で高域除去されたの
ち、記録増幅器７に入力される。Next, the configuration of a plurality of recording terminals 3 will be described with reference to FIG. The frequency-modulated input luminance signal is input from an input terminal 4, impedance-converted by a buffer amplifier 5, and low-frequency removed by an HPF 6.
It is input to the recording amplifier 7. On the other hand, the low-frequency conversion input color signal is input from the input terminal 10, impedance-converted by the buffer amplifier 11, and high-frequency removed by the LPF 12, and then input to the recording amplifier 7.
【００１４】記録増幅器７内で周波数変調輝度信号と低
域変換色信号が合成，増幅され、磁気ヘッド８により磁
気テープ９に記録される。The frequency-modulated luminance signal and the low-frequency conversion chrominance signal are synthesized and amplified in the recording amplifier 7 and recorded on the magnetic tape 9 by the magnetic head 8.
【００１５】つぎに、図３を用いて同じく信号処理器１
の構成を説明する。映像信号は入力端子１３から入力
し、ＡＧＣ回路１４で信号の振幅が自動調整され、Ｙ／
Ｃ分離器１５で輝度信号と色信号に分離される。さら
に、輝度信号はエンハンサー１６で高域強調され、周波
数変調器（ＦＭ ＭＯＤと略す）１７で周波数変調さ
れ、信号増幅器１８で振幅調整され、バッファ増幅器１
９でインピーダンス変換されたのち、周波数変調輝度信
号出力として出力端子２０から出力する。Next, the signal processor 1 will be described with reference to FIG.
Will be described. The video signal is input from the input terminal 13, the signal amplitude is automatically adjusted by the AGC circuit 14, and the Y /
The light is separated into a luminance signal and a chrominance signal by the C separator 15. Further, the luminance signal is emphasized in a high frequency range by an enhancer 16, frequency-modulated by a frequency modulator (abbreviated as FM MOD) 17, amplitude-adjusted by a signal amplifier 18, and adjusted by a buffer amplifier 1.
After the impedance conversion in step 9, the signal is output from the output terminal 20 as a frequency-modulated luminance signal output.
【００１６】一方、色信号はＡＣＣ回路２１で振幅調整
し、周波数変換器２２で低域変換され、ＬＰＦ２３で高
域除去されて信号増幅器２４で振幅調整され、バッファ
増幅器２５でインピーダンス変換されたのち、低域変換
色信号出力として出力端子２６から出力する。On the other hand, the chrominance signal is amplitude-adjusted by the ACC circuit 21, low-frequency converted by the frequency converter 22, high-frequency removed by the LPF 23, amplitude-adjusted by the signal amplifier 24, and impedance-converted by the buffer amplifier 25. Is output from the output terminal 26 as a low-frequency conversion color signal output.
【００１７】以上の通り、記録端末機３内では、記録の
ための信号処理である周波数変調も低域変換も行うこと
なく、信号分配器２から供給された信号をそのまま記録
する。そのために、信号処理器１では、磁気テープに記
録するフォーマットと同じフォーマットで周波数変調お
よび低域変換が行われる。 （実施例２） 以下本発明の第２の実施例について図面を参照しながら
説明する。As described above, the recording terminal 3
To perform both frequency modulation and low-frequency conversion as signal processing for
And record the signal supplied from the signal distributor 2 as it is
I do. For this purpose, the signal processor 1 writes the information on a magnetic tape.
Frequency modulation and
And low-frequency conversion is performed. Embodiment 2 Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.
【００１８】図１は本発明の音声信号の一実施例にも使
用できる同一構成を有するものである。図に示すよう
に、単一の信号処理器１，信号分配器２と複数の記録端
末機３で構成されている。FIG. 1 has the same configuration that can be used in an embodiment of the audio signal of the present invention. As shown in FIG. 1, it is composed of a single signal processor 1, a signal distributor 2 and a plurality of recording terminals 3.
【００１９】以上のように構成された磁気記録再生装置
の音声信号について図１を用いて、その動作を説明す
る。まず、入力された音声信号は信号処理器１で信号処
理され、信号分配器２に入力され、信号分配器で複数の
信号に分岐し、複数の記録端末機３に供給されたのち、
各記録端末機で磁気テープに記録される。The operation of the audio signal of the magnetic recording / reproducing apparatus configured as described above will be described with reference to FIG. First, an input audio signal is processed by a signal processor 1, input to a signal distributor 2, branched into a plurality of signals by the signal distributor, and supplied to a plurality of recording terminals 3.
Each recording terminal records the data on a magnetic tape.
【００２０】つぎに、図５を用いて複数使用する記録端
末機３の構成について説明する。周波数変調入力音声信
号は入力端子４９から入力し、バッファ増幅器５０でイ
ンピーダンス変換され、フィルター５１で、帯域制限さ
れ、記録増幅器５２に入力され、磁気ヘッド５３により
磁気テープ５４に記録される。Next, the configuration of a plurality of recording terminals 3 used will be described with reference to FIG. The frequency-modulated input audio signal is input from an input terminal 49, impedance-converted by a buffer amplifier 50, band-limited by a filter 51, input to a recording amplifier 52, and recorded on a magnetic tape 54 by a magnetic head 53.
【００２１】つぎに、図４を用いて、同じく信号処理器
１の構成について説明する。入力音声信号は入力端子３
９から入力しＬＰＦ４１で高域除去され、リミッター４
２で振幅を制限し、周波数変調器４３て周波数変調し、
ＬＰＦ４４で高域除去され、周波数変調音声信号を得
て、合成器４７に入力され周波数変調出力音声信号とし
て出力端子４８から出力される。なお、ステレオ音声入
力の場合、入力音声信号はもう一つの入力端子４０から
入力して同様の信号処理を受け、周波数変調音声信号を
得、合成器４７で合成されて、ステレオ音声信号が周波
数変調合成信号として出力端子４８から出力される。Next, the configuration of the signal processor 1 will be described with reference to FIG. Input audio signal is input terminal 3
Input from 9 and high-frequency removal by LPF41, limiter 4
2, the amplitude is limited, and the frequency is modulated by the frequency modulator 43.
The high frequency band is removed by the LPF 44 to obtain a frequency modulated audio signal, which is input to the synthesizer 47 and output from the output terminal 48 as a frequency modulated output audio signal. In the case of a stereo audio input, the input audio signal is input from another input terminal 40, undergoes the same signal processing, obtains a frequency-modulated audio signal, and is synthesized by the synthesizer 47. It is output from the output terminal 48 as a composite signal.
【００２２】以上の通り、記録端末機３内では、記録の
ための信号処理である周波数変調を行うことなく、信号
分配器２から供給された信号をそのまま記録する。その
ために、信号処理器１では、磁気テープに記録するフォ
ーマットと同じフォーマットで周波数変調が行われる。 As described above, the recording terminal 3
Without performing frequency modulation, which is the signal processing for
The signal supplied from the distributor 2 is recorded as it is. That
For this reason, the signal processor 1 uses a format for recording on a magnetic tape.
The frequency modulation is performed in the same format as the format.
【発明の効果】以上の実施例から明らかなように本発明
は、記録のための信号処理を各記録端末機側で持つ必要
が無くなるため、特に記録端末機の台数が多い場合に
は、磁気記録再生装置全体を非常に簡素化することがで
きる。 As is clear from the above embodiments, the present invention requires that each recording terminal has signal processing for recording.
Is lost, especially when the number of recording terminals is large.
It may be greatly simplified the whole magnetic recording and reproducing apparatus
Wear.
【００２３】また、信号処理過程が単一となるため複数
の記録端末機で記録される記録信号間の周波数特性やレ
ベル差を、なくすることが可能となる。Further, since the signal processing process is single, it is possible to eliminate frequency characteristics and level differences between recording signals recorded by a plurality of recording terminals.
【００２４】また、ステレオ音声信号が周波数変調合成
信号として信号処理器より出力されるため、接続線が一
系統となり信号複製作成装置の設備の簡素化を可能とす
るなど、同時に多量の信号複製ができる優れた磁気記録
再生装置を実現できるものである。Further, since the stereo audio signal is output from the signal processor as a frequency-modulated composite signal, a large number of signal duplications can be performed at the same time, for example, the connection line becomes one system and the equipment of the signal duplication creating device can be simplified. It is possible to realize an excellent magnetic recording and reproducing apparatus.
【図１】本発明の一実施例の磁気記録再生装置のブロッ
ク図FIG. 1 is a block diagram of a magnetic recording / reproducing apparatus according to an embodiment of the present invention.
【図２】同磁気テープに映像信号を記録する記録端末機
のブロック図FIG. 2 is a block diagram of a recording terminal that records a video signal on the magnetic tape.
【図３】同映像信号の信号処理をする信号処理器のブロ
ック図FIG. 3 is a block diagram of a signal processor that performs signal processing on the video signal.
【図４】本発明の一実施例の磁気記録再生装置の磁気テ
ープに音声信号を記録する記録端末機のブロック図FIG. 4 is a block diagram of a recording terminal for recording an audio signal on a magnetic tape of the magnetic recording and reproducing apparatus according to one embodiment of the present invention;
【図５】同音声信号の信号処理をする信号処理器のブロ
ック図FIG. 5 is a block diagram of a signal processor that performs signal processing of the audio signal.
【図６】従来での映像信号複製作成装置のブロック図FIG. 6 is a block diagram of a conventional video signal duplication creating apparatus.
１ 信号処理器 ２ 信号分配器 ３ 記録端末機 ５ バッファ増幅器 ７ 記録増幅器 ８ 磁気ヘッド ９ 磁気テープ DESCRIPTION OF SYMBOLS 1 Signal processor 2 Signal distributor 3 Recording terminal 5 Buffer amplifier 7 Recording amplifier 8 Magnetic head 9 Magnetic tape
Claims (1)
置であって、前記音声信号を磁気テープに記録するフォ
ーマットで周波数変調する周波数変調器と、複数の記録
端末機と、前記周波数変調器で周波数変調された周波数
変調音声信号を前記複数の記録端末機に分配する信号分
配器とを備え、前記夫々の記録端末機では、前記信号分
配器から分配された信号を周波数変調すること無く磁気
テープに記録することを特徴とする磁気記録再生装置。1. A magnetic recording / reproducing apparatus for duplicating an audio signal, comprising: a frequency modulator for frequency-modulating the audio signal in a format for recording the audio signal on a magnetic tape; a plurality of recording terminals; A signal distributor for distributing a frequency-modulated audio signal frequency-modulated to the plurality of recording terminals, wherein each of the recording terminals uses a magnetic signal without frequency-modulating the signal distributed from the signal distributor. A magnetic recording / reproducing apparatus for recording on a tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03288315A JP3116470B2 (en) | 1991-11-05 | 1991-11-05 | Magnetic recording / reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03288315A JP3116470B2 (en) | 1991-11-05 | 1991-11-05 | Magnetic recording / reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05130641A JPH05130641A (en) | 1993-05-25 |
| JP3116470B2 true JP3116470B2 (en) | 2000-12-11 |
Family
ID=17728591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03288315A Expired - Fee Related JP3116470B2 (en) | 1991-11-05 | 1991-11-05 | Magnetic recording / reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3116470B2 (en) |
-
1991
- 1991-11-05 JP JP03288315A patent/JP3116470B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05130641A (en) | 1993-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |