JPH0457485A - Signal processor - Google Patents

Abstract

PURPOSE:To record simultaneously plural present video signals by outputting the output of a first receiving means after dividing the output into a multiple N when selecting the output of the first receiving means, and recording the plural outputs of a second receiving means after integrating and dividing the outputs into a maximum N when selecting the outputs of the second receiving means. CONSTITUTION:When a high fidelity video (HD) signal is recorded, only the first one information X1 of the HD signal passes a switch 6. When the information X1 passes the switch 6, the switch 6 is turned to a non-connected state, and entire recordings are stopped until the information X1 of the next picture comes. The switch 6 is operated in the same way until information X4. Data stored in a storing circuit 7 is read out almost 1/4 as fast as the data was stored, and processed by a recording circuit 14. When an SD signal is recorded, the switch 6 transmits the output of an SD signal receiving circuit A2 to a storing circuit 7. The information amount of the SD signal is almost 1/4 as much as that of the HD signal so that four SD signals are simultaneously recorded by the same process as the HD signal is divided into four signals and recorded.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、ディジタルＶＴＲやＩ　ＳＤＮ等のディジタ
ル映像信号処理を行う記録または伝送機器ζご用いられ
る信号処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a signal processing device used in recording or transmission equipment ζ for processing digital video signals such as a digital VTR or ISDN.

従来の技術 現在注目を集めている高品位映像信号（以下、ＨＤ信号
と記す）は、現行映像信号（以下、Ｓ　Ｉ）信号と記す
）の４倍以上の情報量を有する。したがって、例えばＶ
ＴＲの場合、ＨＤ信号を３時間記録できる技術が確立で
きれば、原理的にはＳＤ倍信号１２　（＝４Ｘ３）時間
以上記録できる。つマリ、ＨＤ信号用（ＤＶ’ｒＲ（以
下、ＨＤＶＴＲと記す）はＳＤ信号用ＶＴＲ（以下、５
ＤＶＴＲと記す）の４倍以上の情報処理能力を備える。BACKGROUND ART A high-definition video signal (hereinafter referred to as an HD signal), which is currently attracting attention, has an amount of information four times or more than a current video signal (hereinafter referred to as an SI signal). Therefore, for example V
In the case of TR, if a technology capable of recording an HD signal for 3 hours can be established, in principle, an SD double signal can be recorded for 12 (=4×3) hours or more. For HD signals (DV'rR (hereinafter referred to as HDVTR)) is for SD signals (hereinafter referred to as 5
It has more than four times the information processing capacity of DVTR).

発明が解決しようとする課題 現在、市販のＶＴＲでは１台のＶＴＲに同時に記録でき
るのはｌ信号のみである。ＨＤ　ｆＮ号のみを記録する
のであれは、従来通りＶＴＲは１系統の映像入力手段の
みを備えれはよい。また、ＩＩ　ＤＶＴＲは先に示した
ようにＳＤ倍信号処理するのに上針な能力を備えるので
、ＨＤＶＴＲにＳＤ倍信号記録させることは容易である
。Problems to be Solved by the Invention Currently, in commercially available VTRs, only one signal can be recorded simultaneously on one VTR. If only HD fN signals are to be recorded, the VTR should be equipped with only one system of video input means, as in the past. Furthermore, as mentioned above, the II DVTR has excellent ability to process SD times the signal, so it is easy to record the SD times signal on the HDVTR.

しかし、　「同時に記録できるのは１信号」という従来
のＶＴＲの機能のままでは、ＨＤ　Ｖ　１’　Ｒの用途
は、例えばｒＨＤ信号３時間記録、Ｓ　Ｄ信号１２時間
記録」だけになる。もちろんこの機能も重要であるが、
ＨＤＶＴＲの信号処理能力を考えると、次のような課題
が残る。つまり、同一時間内で考えると、ＨＤ信号に関
しては、ＨＤＶＴＲの信号処理回路は１００％の能力を
発揮しているのに対して、ＳＤ倍信号関しては約２５％
の能力しか発揮できないことである。However, if the conventional VTR function of ``only one signal can be recorded at the same time'' remains, the HD V1'R will only be used for, for example, 3-hour recording of rHD signals and 12-hour recording of SD signals. Of course, this function is also important, but
Considering the signal processing capability of HDVTR, the following issues remain. In other words, considering the same time period, the HDVTR's signal processing circuit is working at 100% of its capacity for HD signals, while it is working at about 25% for SD double signals.
This means that they can only demonstrate their abilities.

本発明は、以上のような従来技術の課題を考慮し、複数
のＳＤ倍信号同時記録を可能にすることで、ＨＤＶＴＲ
はＳＤ倍信号対しても１００％の処理能力を発揮できる
信号処理装置を提供することを目的とする。The present invention takes into consideration the problems of the prior art as described above, and enables simultaneous recording of multiple SD double signals, thereby improving HDVTR.
The object of the present invention is to provide a signal processing device that can exhibit 100% processing capacity even for SD multiplied signals.

課題を解決するための手段 請求項１の本発明は、第１入力信号を受信する第１受信
手段と、それぞれが前記第１入力信号より情報量の少な
い複数の第２入力信号を同時に受信できる第２受信手段
と、前記第１受信手段の出力を選択する場合は前記第１
受信手段の出力を複数Ｎに分配して出力し、前記第２受
信手段の出力を選択する場合は前記第２受信手段の出力
を統合し最大Ｎに分配する選択手段と、前記選択手段の
出力に対して記録するための処理を施す記録手段を備え
ることを特徴とする信号処理装置である。Means for Solving the Problems The present invention as claimed in claim 1 provides a first receiving means for receiving a first input signal, and a plurality of second input signals, each of which has a smaller amount of information than the first input signal, which can be simultaneously received. When selecting the output of the second receiving means and the first receiving means, the output of the first receiving means is selected.
a selection means for distributing the output of the receiving means to a plurality of N and outputting the same, and for selecting the output of the second receiving means, integrating the output of the second receiving means and distributing the output to a maximum of N; and an output of the selection means. This is a signal processing device characterized by comprising a recording means for performing recording processing on a signal.

請求項２の本発明は、請求項１の信号処理装置によって
記録された信号の再生信号を受信し、前記記録するため
の処理と逆の処理を施す再生手段と、前記再生手段の出
力を統合して前記第１入力信号を再現するか、または前
記再生手段の出力を結合分配して前記第１入力信号より
も情報量が少ない一つ以上の前記第２入力信号を再現す
る再現手段を備えることを特徴とする信号処理装置てあ
請求項３の本発明は、第１入力信号を入力する第１受信
手段と、それぞれが前記第１入力信号より情報量の少な
い複数の第２入力信号をそれぞれ同時に受信できる第２
受信手段と、前記第１受信手段の出力をそのまま出力と
するか、または前記第２受信手段の出力を統合して出力
する統合手段と、前記統合手段の出力に対して記録また
は伝送するための処理を施す記録伝送手段を備えること
を特徴とする信号処理装置である。The present invention as set forth in claim 2 is characterized in that a playback means for receiving a playback signal of a signal recorded by the signal processing device according to claim 1 and performing processing opposite to the processing for recording, and an output of the playback means are integrated. and reproducing means for reproducing the first input signal, or combining and distributing the outputs of the reproducing means to reproduce one or more of the second input signals having a smaller amount of information than the first input signal. The present invention according to claim 3 is a signal processing device characterized in that: a first receiving means inputs a first input signal; and a plurality of second input signals each having a smaller amount of information than the first input signal. 2nd one that can receive each at the same time
a receiving means; a integrating means for outputting the output of the first receiving means as it is or for outputting the integrated output of the second receiving means; and a integrating means for recording or transmitting the output of the integrating means. This is a signal processing device characterized by comprising recording and transmitting means for performing processing.

請求項４の本発明は、請求項３の信号処理装置によって
記録または伝送された信号の再生信号または受信信号を
、前記記録または伝送のための処理と逆の処理を施す再
生手段と、前記再生手段の出力を用いて前記第１入力信
号を再現するか、または前記再生手段の出力を分配して
、前記第１入力信号より情報量の少ない一つ以上の第２
の入力信号を再現する再現手段を備えることを特徴とす
る信号処理装置である。The present invention as set forth in claim 4 provides a reproducing means for subjecting a reproduced signal or a received signal of a signal recorded or transmitted by the signal processing device according to claim 3 to processing inverse to the processing for said recording or transmission, and said reproducing means. The output of the reproduction means is used to reproduce the first input signal, or the output of the reproduction means is distributed to reproduce one or more second input signals having a lower amount of information than the first input signal.
This is a signal processing device characterized by comprising a reproduction means for reproducing an input signal.

作用 請求項１の本発明においては、ＨＤ信号は非常に高速の
処理を必要とし、回路の処理速度によっては入力の映像
信号を複数（Ｎ個）に分割し、このＮ個に分割された映
像信号フロックを並列に同し処理を行う場合もある。こ
の場合、おなし映像処理回路をＮ個持つため、分割され
たＨ　Ｄ信号ブロックの情報量と、一つのＳＤ信号全体
の情報量がほぼ等しければ、同し処理回路で処理できる
。In the present invention according to claim 1, the HD signal requires very high-speed processing, and depending on the processing speed of the circuit, the input video signal is divided into a plurality of parts (N parts), and the video signal divided into N parts is divided into two parts. In some cases, signal flocks are processed in parallel. In this case, since N audio video processing circuits are provided, if the information amount of the divided HD signal block and the information amount of one entire SD signal are approximately equal, they can be processed by the same processing circuit.

つまり、Ｓ　Ｉ）信号と、分割されたＨ　Ｄ信号ブロッ
クとを切り換えれば、ＨＤ信号もＮ個のＳＤ倍信号同様
に記録できる。すなわち、第１受信手段によって、第１
入力信号を入力し、第２受信手段によって、それぞれが
第１入力信号より情報量の少ない複数の第２入力信号を
同時に受信し、選択手段によって、第１受信手段の出力
を選択する場合は第１受信手段の出力を複数Ｎに分配し
て出力し、第２受信手段の出力を選択する場合は第２受
信手段の出力を統合し最大Ｎに分配する。そして、記録
手段が選択手段の出力に対して記録するための処理を施
す。That is, by switching between the SI) signal and the divided HD signal blocks, the HD signal can also be recorded in the same way as N SD times signals. That is, the first receiving means
When an input signal is input, the second receiving means simultaneously receives a plurality of second input signals each having a smaller amount of information than the first input signal, and the selection means selects the output of the first receiving means. The output of one receiving means is distributed to a plurality of N units and outputted, and when the output of the second receiving unit is selected, the outputs of the second receiving units are integrated and distributed to a maximum of N. Then, the recording means performs processing for recording the output of the selection means.

請求項２の本発明は、請求項１の本発明の信号処理装置
を用いて記録した信号から、逆処理を施すことで元の信
号を再現する。すなわち、再生手段によって、請求項１
の信号処理装置によって記録された信号の再生信号を受
信し、記録するための処理と逆の処理を施し、再現手段
によって、再生手段の出力を統合して第１の出力信号を
再現するか、または再生手段の出力を結合分配して第１
出力信号よりも情報量が少ない一つ以上の第２出力信号
を特徴する 請求項３の本発明は、映像処理回路の処理速度が十分て
あり、一系統の処理回路でＨＤ信号を処理できる場合も
ある。この場合には、Ｎ個のＳＤ倍信号統合して直列に
つなぎ、ＨＤ信号程度の情報量にして後続回路に送れば
、映像信号の特徴を大きく損なうことがなく、ＨＤ信号
とＮ個のＳＤ倍信号同様に扱うことができる。したがっ
て、ＨＤ信号はそのまま出力とし、同時に送られて来る
Ｎ個のＳＤ倍信号統合して出力ずれは、ＨＤ信号もＮ個
のＳＤ倍信号同様に記録できる。すなわち、第１受信手
段によって、第１入力信号を入力し、第２受信手段によ
って、それぞれが第１入力信号より情報量の少ない複数
の第２入力信号をそれぞれ同時に受信し、統合手段によ
って、第１受信手段の出力をそのまま出力とするか、ま
たは第２受信手段の出力を統合して出力する。そして、
記録伝送手段によって、統合手段の出力むこ対して記録
または伝送するための処理を施す。The present invention according to claim 2 reproduces the original signal by performing inverse processing from the signal recorded using the signal processing device according to the present invention according to claim 1. That is, by the reproduction means, claim 1
receiving a reproduction signal of the signal recorded by the signal processing device, performing a process opposite to the recording process, and using the reproduction means to integrate the outputs of the reproduction means to reproduce the first output signal; or by combining and distributing the outputs of the reproducing means to the first
The present invention according to claim 3, characterized by one or more second output signals having a smaller amount of information than the output signal, is applicable when the processing speed of the video processing circuit is sufficient and the HD signal can be processed with one system of processing circuit. There is also. In this case, if you integrate the N SD signals and connect them in series, and send it to the subsequent circuit with an amount of information comparable to that of the HD signal, the characteristics of the video signal will not be significantly impaired, and the HD signal and N SD It can be treated in the same way as a double signal. Therefore, the HD signal is output as is, and the N SD times signals sent simultaneously are integrated, and the output deviation can be recorded in the HD signal as well as the N times SD signals. That is, the first receiving means inputs the first input signal, the second receiving means simultaneously receives a plurality of second input signals, each of which has a smaller amount of information than the first input signal, and the integrating means receives the first input signal. The output of the first receiving means is output as is, or the output of the second receiving means is integrated and output. and,
The recording and transmitting means performs processing for recording or transmitting the output of the integrating means.

請求項４の本発明は、請求項３の本発明の信号処理装置
を用いて記録した信号から、逆処理を施すことで元の信
号を再現する。すなわち、再生手段によって、請求項３
の信号処理装置によって記録または伝送された信号の再
生信号または受信信号を、記録または伝送のための処理
と逆の処理を施し、再現手段によって、再生手段の出力
を用いて出力信号を再現するか、または再生手段の出力
を分配して、出力信号より情報量の少ない−っ以上の出
力信号を再現する。The present invention according to claim 4 reproduces the original signal by performing inverse processing from the signal recorded using the signal processing device according to the present invention according to claim 3. That is, by the reproducing means, claim 3
The reproduced signal or the received signal of the signal recorded or transmitted by the signal processing device is subjected to processing opposite to the processing for recording or transmission, and the output signal is reproduced by the reproduction means using the output of the reproduction means. , or distributes the output of the reproducing means to reproduce an output signal with a smaller amount of information than the output signal.

実施例 以下に本発明の詳細な説明する。Example The present invention will be explained in detail below.

実施例１ 第１図、第２図に本発明の実施例１の１１１９９図を示
す。本実施例１は本発明の請求項１と２に対応する。ま
た、本実施例１ては一例として）Ｉ　Ｄ信号入力が１系
統、Ｓ　Ｄ信号入力が４系統の場合を一例として説明す
る。第１図において、第１受信手段の一例としてのＨＤ
信号受信回路ｌは）−Ｉ　Ｉ）信号を入力し、ディジタ
ル状態のＨＤ信号を出力する。Embodiment 1 FIGS. 1 and 2 show diagrams 11199 of Embodiment 1 of the present invention. Embodiment 1 corresponds to claims 1 and 2 of the present invention. Furthermore, in the first embodiment, a case will be described in which there is one ID signal input system and four SD signal input systems as an example. In FIG. 1, an HD as an example of the first receiving means
The signal receiving circuit 1 inputs the -II) signal and outputs a digital HD signal.

ＳＤ信号受信回路へ２はＳＤ倍信号入力し、−ディジタ
ル状態のＳＤ倍信号Ａを出力し、ＳＤ信号受信回路Ｂ３
はＳＤ倍信号入力し、ディジタル状態のＳＤ信号ＤＢを
出力し、ＳＤ信号受信回路Ｃ４はＳＤ倍信号入力し、デ
ィジタル状態のＳＤ倍信号Ｃを出力し、ＳＤ信号受信回
路Ｄ５はＳＤ倍信号入力腰　ディジタル状態のＳＤ信号
ＤＤを出力する。これらＳＤ信号受信回路Ａ２、Ｂ３、
Ｃ４、Ｄ５は第２受信手段の一例である。2 inputs the SD multiplied signal to the SD signal receiving circuit, outputs the SD multiplied signal A in the -digital state, and outputs the SD multiplied signal A to the SD signal receiving circuit B3.
inputs the SD double signal and outputs the SD signal DB in the digital state, the SD signal receiving circuit C4 inputs the SD double signal and outputs the SD double signal C in the digital state, and the SD signal receiving circuit D5 receives the SD double signal input. Waist Outputs SD signal DD in digital state. These SD signal receiving circuits A2, B3,
C4 and D5 are examples of second receiving means.

スイッチ６はＨＤ信号受信回路ｌの出力と、ＳＤ信号受
信回路Ａ２の出力を入力とし、スイッチ７はＨＩ）信号
受信回路ｌの出力と、ＳＤ倍信受信回路Ｂ３の出力な入
力とじ、スイッチ８はＨＤ倍信受信回路ｌの出力と、Ｓ
Ｄ倍信受信回路ｃ４の出力を入力と腰　スイッチ９はＨ
Ｄ倍信受信回路ｌの出力と、ＳＤ倍信受信回路Ｄ５の出
力を入力とする。Switch 6 has inputs of the output of HD signal receiving circuit 1 and the output of SD signal receiving circuit A2, switch 7 has inputs of the output of HI) signal receiving circuit 1 and the output of SD doubler receiving circuit B3, and switch 8 are the output of the HD doubler receiving circuit l and S
Input the output of the D double receiver circuit c4 and switch 9 is set to H.
The output of the D double receiver circuit 1 and the output of the SD double receiver circuit D5 are input.

ＨＤ信号の１画面の情報量を４Ｉとし、第１番目の１個
の情報をＸＬ　　第２番目の１個の情報をＸ２、第３番
目の１個の情報をＸ３、第４番目の１個の情報をＸ４と
する。このとき、ＨＤ信号を記録する場合は、スイッチ
６はＨＤ信号のＸＩだけを通過させ、記憶回路７はこの
Ｘｌのみを記憶する。Ｘｌを通過させると、スイッチ６
は無接続状態になり、次の画面のＸｌが来るまで一切の
記録を中止する。The amount of information on one screen of an HD signal is 4I, the first piece of information is XL, the second piece of information is X2, the third piece of information is X3, and the fourth piece of information is XL. The information of is set as X4. At this time, when recording an HD signal, the switch 6 passes only XI of the HD signal, and the storage circuit 7 stores only this Xl. When Xl is passed, switch 6
becomes disconnected and stops all recording until the next screen Xl appears.

スイッチ８はＨＤ信号のＸ２だけを通過させ、記せ回路
９はこのＸ２のみを記憶する。Ｘ２を通過させると、ス
イッチ８は無接続状態になり、次の画面のＸ２が来るま
で一切の記録を中止する。The switch 8 allows only the HD signal X2 to pass through, and the write circuit 9 stores only this X2. When X2 is passed, the switch 8 becomes a disconnected state and stops all recording until X2 on the next screen comes.

スイッチ１ｏはＨＤ信号のＸ３だけを通過させ、記憶回
路１１はこのＸ３のみを記憶する。ｘ３を通過させると
、スイッチ〜１０は無接続状態になり、次の画面のＸ３
が来るまで一切の記録を中止する。The switch 1o allows only the HD signal X3 to pass, and the storage circuit 11 stores only this X3. When x3 is passed, switch ~10 becomes unconnected, and X3 on the next screen
All recording will be stopped until this happens.

スイッチ１２はＨＤ信号のＸ４だけを通過させ、記憶回
路１３はこのＸ４のみを記憶する。ｘ４を通過させると
、スイッチ１２は無接続状態になり、次の画面のｘ４が
来るまで一切の記録を中小する。The switch 12 passes only the HD signal X4, and the storage circuit 13 stores only this X4. When x4 is passed, the switch 12 becomes disconnected and all recording is reduced until x4 on the next screen comes.

本実施例のスイッチ６と記憶回路７、スイッチ８と記憶
回路９、スイッチ１０と記憶回路１１、およびス２イッ
チ１２と記憶回路１３は選択手段の一例である。The switch 6 and the memory circuit 7, the switch 8 and the memory circuit 9, the switch 10 and the memory circuit 11, and the switch 12 and the memory circuit 13 of this embodiment are examples of selection means.

記憶回路７に記憶されたデータは、記憶時の約１７４の
速度で読み出され、記録回路１４で処理される。つまり
、ＨＤ信号の１画面の１／４の情報量を１画面分の時間
をかけて読み出す。この結果、すべての記憶内容が読み
出された直後に、次の画面の情報Ｘ１の記憶を開始する
。The data stored in the storage circuit 7 is read out at a speed of about 174 at the time of storage, and processed by the recording circuit 14. In other words, the amount of information corresponding to 1/4 of one screen of the HD signal is read out over a period of time corresponding to one screen. As a result, immediately after all stored contents are read out, storage of information X1 for the next screen is started.

同様に、記憶回路９に記憶されたデータも記憶時の約１
／４の速度で読み出され、記録回路１５て処理される。Similarly, the data stored in the storage circuit 9 is approximately 1
The data is read out at a speed of /4 and processed by the recording circuit 15.

また、記憶回路１１に記憶されたデータも記憶時の約１
７４の速度で読み出され、記録回路１６で処理される。Furthermore, the data stored in the memory circuit 11 is also approximately 1
74 speed and processed by the recording circuit 16.

さらに、記憶回路１３に記憶されたデータも記憶時の約
１／４の速度で読み出され、記録回路１７で処理される
。Furthermore, the data stored in the storage circuit 13 is also read out at about 1/4 the speed of storage and processed by the recording circuit 17.

記録手段の一例としての記録回路１４〜１７では、例え
は誤り訂正符号化及び記録符号化等が行なわれる。また
、記録時間を延長するために、画像の冗長成分を除去し
、記録する情報そのものを削減する高能率符号化を行な
う場合もある。何れの場合も、記録回路１４〜１７の出
力は記録媒体上に記録される。In the recording circuits 14 to 17, which are examples of recording means, error correction encoding and recording encoding, for example, are performed. Furthermore, in order to extend the recording time, high-efficiency encoding may be performed to remove redundant components of the image and reduce the amount of information to be recorded. In either case, the outputs of the recording circuits 14-17 are recorded on the recording medium.

一方、ＳＤＤ信号記録する場合は、スイッチ６はＳＤ信
号受信回路Ａ２の出力を記憶回路７に送り、スイッチ８
はＳＤ倍信受信回路Ｂ３の出方を記憶回路９に送り、ス
イッチ１ｏはＳＤ信号受信回路Ｃ４の出力を記憶回路１
１に送り、スイッチ１２はＳＤ倍信受信回路Ｄ５の出力
を記憶回路１３に送る。On the other hand, when recording an SDD signal, the switch 6 sends the output of the SD signal receiving circuit A2 to the storage circuit 7, and the switch 8
The switch 1o sends the output of the SD double receiver circuit B3 to the memory circuit 9, and the switch 1o sends the output of the SD signal receiver circuit C4 to the memory circuit 1.
1, and the switch 12 sends the output of the SD double receiver circuit D5 to the storage circuit 13.

先に示【ノたように、ＳＤＤ信号情報量はＨＤ信号の情
報量の約１／４である。したがって、記憶回路７．９．
１１．１３および記録回路１４〜１７を用いて、４つの
ＳＤＤ信号同時に記録するための処理速度も、ＨＤ　１
＠号を４つに分割して記録する上述の場合とほぼ等しい
。このため、４つのＳＤＤ信号同時に記録する場合も、
ＨＤ信号を４つに分割して記録する場合と同様の処理で
よい。As shown above, the amount of information in the SDD signal is about 1/4 of the amount of information in the HD signal. Therefore, storage circuit 7.9.
11.13 and the recording circuits 14 to 17, the processing speed for simultaneously recording four SDD signals is also
This is almost the same as the above case where the @ sign is divided into four parts and recorded. Therefore, even when recording four SDD signals simultaneously,
The same processing as when recording an HD signal by dividing it into four parts may be used.

なお、本実施例では記録回路の数はＳ　Ｉ）信号の入力
系統数と同一であるが、これらの数が等しくなければな
らない必然性はない。記録密度が許す範囲で、記憶回路
７．９．１１．１３の出力の一部またはずべてを統合し
て、記録回路数を２または１、あるいは任意に設定する
ことも可能である。In this embodiment, the number of recording circuits is the same as the number of input systems for the SI) signal, but there is no necessity that these numbers have to be equal. Within the range permitted by the recording density, it is also possible to integrate some or all of the outputs of the memory circuits 7.9.11.13 to set the number of recording circuits to 2 or 1, or arbitrarily.

次に、上述のようにして記録した信号から、元の映像信
号を復元する回路構成について、第２図のブロック図を
用いて説明する。第２図において、再生手段の一例とし
ての再生回路１８〜２１は、第１図における記録回路１
４〜１７と逆の処理を行なう。すなわち、記録符号化さ
れた符号語を復号し、この復号されたデータに対して誤
り訂正を行なう。これらの処理は公知技術で容易に実現
できる。Next, a circuit configuration for restoring the original video signal from the signal recorded as described above will be explained using the block diagram of FIG. 2. In FIG. 2, reproducing circuits 18 to 21 as an example of reproducing means correspond to the recording circuit 1 in FIG.
Perform steps 4 to 17 in reverse order. That is, the code word recorded and encoded is decoded, and error correction is performed on the decoded data. These processes can be easily realized using known techniques.

また、記録時に高能率符号化を行なっている場合には、
高能率符号化されたデータを復号し、画像データを復元
する。これらの復号処理を行なった結果、ＨＤ信号の場
合は再生回路１８〜２１の信号を再生手段の一例として
再現回路２２で統合して出力することで元のＨＤ信号を
再現できる。Also, if high-efficiency encoding is used during recording,
Decode high-efficiency encoded data and restore image data. As a result of these decoding processes, in the case of an HD signal, the original HD signal can be reproduced by integrating and outputting the signals from the reproduction circuits 18 to 21 by a reproduction circuit 22 as an example of reproduction means.

一方、ＳＤＤ信号場合は再生回路１８〜２１の出力を、
そのまま再現回路２２の出力とすることで元のＳＤＤ信
号それぞれ復元できる。On the other hand, in the case of SDD signals, the outputs of the reproduction circuits 18 to 21 are
By using the output of the reproduction circuit 22 as it is, each of the original SDD signals can be restored.

本実施例では、４系統のＳＤ大入力べてを記録する場合
について説明したが、４系統までの入力ならば任意の数
の入力系統だけを記録することができる。例えば、ｌ系
統のＳＤ入力のみを記録して再生する場合、第１図のＳ
Ｄ信号受信回路Ａ２、スイッチ６、記憶回路７、記録回
路１４、および第２図の再生回路１８、再現回路２２だ
けを用い、テープ送り速度を１／４にすれは、ＨＤ信号
の４倍の記録時間が得られる。In this embodiment, a case has been described in which all four SD large input systems are recorded, but it is possible to record only an arbitrary number of input systems as long as there are up to four input systems. For example, when recording and reproducing only one system of SD input, S
Using only the D signal receiving circuit A2, the switch 6, the memory circuit 7, the recording circuit 14, and the reproducing circuit 18 and reproducing circuit 22 shown in FIG. Recording time is obtained.

このように、本発明はＨＤＶＴＲの潜在能力を十分に活
用し、記録できる信号の種類が多いたけてなく、ＳＤＤ
信号関しては同時に記録できる１８号数も記録時間も、
従来よりも飛躍的に自由ζこ選へる。As described above, the present invention makes full use of the potential of HDVTRs, allows recording of a wide variety of signal types, and makes it possible to record many types of signals.
Regarding signals, the number of signals that can be recorded at the same time and the recording time are
You can choose more freely than before.

なお、第２受信手段としては、各入力信号を区別可能に
統合し、最大Ｎに分配するものであれは、任意の手段で
よい。但しＮはｌ、２、・・・である。Note that the second receiving means may be any means as long as it integrates each input signal in a distinguishable manner and distributes it to a maximum of N. However, N is l, 2, . . .

実施例２ 第３図、第４図に本発明の実施例２のブロック図を示す
。本実施例２は本発明の請求項３と４に対応する。また
、本実施例２では一例としてＨＤ信号入力が１系統、Ｓ
Ｄ信号入力が４系統の場合を一例として説明する。第３
図において、第１受信手段の一例としてのＨＤ信号受信
回路ｌはＨＤ信号を入力し、ディジタル状態のＨＤ信号
を出力する。Embodiment 2 FIGS. 3 and 4 show block diagrams of Embodiment 2 of the present invention. This second embodiment corresponds to claims 3 and 4 of the present invention. In addition, in the second embodiment, as an example, there is one HD signal input system,
The case where there are four D signal input systems will be explained as an example. Third
In the figure, an HD signal receiving circuit 1, which is an example of a first receiving means, receives an HD signal and outputs a digital HD signal.

Ｓ　Ｉ）信号受信回路Ａ２はＳＤＤ信号入力し、ディジ
タル状態のＳＤＤ信号Ａを出力し、ＳＤ倍信受信回路Ｂ
３はＳＤＤ信号入力し、ディジタル状態のＳＤＤ信号Ｂ
を出力し、ＳＤ信号受信回路Ｃ４はＳＤＤ信号入力し、
ディジタル状態のＳＤＤ信号Ｃを出力し、ＳＤ倍信受信
回路Ｄ５はＳＤＤ信号入力し、ディジタル状態のＳＤＤ
信号Ｄを出力する。これらＳ　Ｄ信号受信回路Ａ２、Ｂ
３、Ｃ４、Ｄ５は第２受信手段の一例である。S I) The signal receiving circuit A2 inputs the SDD signal, outputs the SDD signal A in the digital state, and sends the SDD signal A2 to the SD doubling receiving circuit B.
3 inputs the SDD signal, and the SDD signal B in the digital state
The SD signal receiving circuit C4 inputs the SDD signal,
The SDD signal C in the digital state is output, and the SD doubler receiving circuit D5 inputs the SDD signal and receives the SDD signal C in the digital state.
Outputs signal D. These SD signal receiving circuits A2, B
3, C4, and D5 are examples of second receiving means.

ＨＤ信号を記録する場合には、ｌ（［）信号受信回路ｌ
の出力はスイッチ２３を通して記憶回路２４に送られる
。一方、ＳＤＤ信号記録する場合は、ＳＤ信号受信回路
Ａ２、ＳＤ倍信受信回路Ｂ３、ＳＤ信号受信回路Ｃ４、
およびＳ　Ｄ信号受信回路Ｄ５の出力は、それぞれ１画
素ずつスイッチ２５を通して順番に、ｌっのＳＤＤ信号
取り扱う４倍の早さで選択される。このようにして選択
されたスイッチ２５の出力は、スイッチ２３を通して記
憶回路２４に送られる。これらスイッチ２３．２５は統
合手段の一例である。When recording HD signals, l([) signal receiving circuit l
The output of is sent to the storage circuit 24 through the switch 23. On the other hand, when recording SDD signals, SD signal receiving circuit A2, SD double receiving circuit B3, SD signal receiving circuit C4,
The outputs of the SDD signal receiving circuit D5 and the SDD signal receiving circuit D5 are sequentially selected one pixel at a time through the switch 25, four times as fast as one SDD signal is handled. The output of the switch 25 selected in this way is sent to the storage circuit 24 through the switch 23. These switches 23, 25 are an example of integration means.

先に示したように、ＨＤ信号の情報量はＳＤＤ信号情報
量の４倍以上である。したがって、スイッチ２５と２３
を通して送られる４つのＳＤＤ信号情報量は、１つのＨ
Ｄ信号の情ｉｔよりも小さい。このため、ＨＤ信号を記
憶できる記憶回路２４の容量は、４つのＳＤＤ信号情報
量を記憶するのに十分である。As shown above, the amount of information in the HD signal is more than four times the amount of information in the SDD signal. Therefore, switches 25 and 23
The information content of four SDD signals sent through one H
It is smaller than the information of the D signal. Therefore, the capacity of the storage circuit 24 that can store HD signals is sufficient to store four SDD signal information amounts.

記憶回路２４からのＳＤＤ信号読み出しに関しては、画
像の性質を損なわないように、４つのＳＤＤ信号各画面
ｍ位で行なうことが望ましい。こうすることて、記憶回
路２４からの出力を入力として、記録に適した符号化を
行なう記録回路２６は、その入力カ月１倍信号であるか
、ＳＤＤ信号あるかによって処理内容を大きく変更する
必要がなくなる。Regarding the SDD signal readout from the storage circuit 24, it is desirable to read out the four SDD signals at about m of each screen so as not to impair the quality of the image. By doing this, the recording circuit 26, which inputs the output from the storage circuit 24 and performs encoding suitable for recording, has to change its processing content significantly depending on whether the input is a 1x signal or an SDD signal. disappears.

なお、記録伝送手段の一例としての記録回路２６では、
例えば誤り訂正符号化及び記録符号化等が行なわれる。In addition, in the recording circuit 26 as an example of recording transmission means,
For example, error correction encoding and recording encoding are performed.

また、記録時間を延長するために、画像の冗長成分を除
去し、記録する情報そのものを削減する高能率符号化を
行なう場合もある。何れの場合も、記録回路２６の出力
は記録媒体上に記録される。また、記録密度との関係か
ら、記録回路２６の出力を複数に分割して記録すること
が必要な場合もある。Furthermore, in order to extend the recording time, high-efficiency encoding may be performed to remove redundant components of the image and reduce the amount of information to be recorded. In either case, the output of recording circuit 26 is recorded on a recording medium. Furthermore, due to the relationship with recording density, it may be necessary to divide the output of the recording circuit 26 into a plurality of parts for recording.

次に、上述のようにして記録した信号から、元の映像信
号を復元する回路構成について、第４図のブロック図を
用いて説明する。第４図において、再生手段の一例とし
ての再生回路２７は、第３図における記録回路２６と逆
の処理を行なう。すなわち、記録符号化された符号語を
復号し、この復号されたデータに対して誤り訂正を行な
う。これらの処理は公知技術で容易ζこ実現できる。Next, a circuit configuration for restoring the original video signal from the signal recorded as described above will be explained using the block diagram of FIG. 4. In FIG. 4, a reproducing circuit 27 as an example of reproducing means performs a process opposite to that of the recording circuit 26 in FIG. That is, the code word recorded and encoded is decoded, and error correction is performed on the decoded data. These processes can be easily realized using known techniques.

また、記録時に高能率符号化を行なっている場合には、
高能率符号化されたデータを復号し、画像データを復元
する。これらの復号処理を行なった結果、ＨＤ信号の場
合は再生手段の一例としての再生回路２７のの出力を、
そのまま出力することで元のＨＤ信号を復元できる。一
方、ＳＤＤ信号場合は再生回路２７の出力を４つに分配
する、再現手段の一例としての分配回路２８の出力とし
て元の４つのＳＤＤ信号それぞれ復元できる。Also, if high-efficiency encoding is used during recording,
Decode high-efficiency encoded data and restore image data. As a result of these decoding processes, in the case of an HD signal, the output of the reproduction circuit 27 as an example of reproduction means is
The original HD signal can be restored by outputting it as is. On the other hand, in the case of SDD signals, each of the original four SDD signals can be restored as the output of a distribution circuit 28, which is an example of a reproduction means, which distributes the output of the reproduction circuit 27 into four.

なお、本実施例では記録の場合を例示したが、伝送の場
合も同様の処理が可能である。すなわち、本実施例の説
明で、　「記録」とあるのを「伝送」と置き換えるだけ
で、−膜性を失うことなく本実施例を伝送用に用いるこ
とができる。Note that although this embodiment exemplifies the case of recording, similar processing is possible in the case of transmission. That is, by simply replacing "recording" with "transmission" in the description of this embodiment, this embodiment can be used for transmission without losing film properties.

また、１つのＳＤＤ信号長時間記録する場合は、回路の
処理速度を１つのＳＤＤ信号取り扱う〒さに切り換え、
テープ送り速度を１／４に低減すれはよい。このような
操作は従来からある公知技術で十分実現できる。このよ
うに、本発明はＨＤ　ＶＴＲの潜在能力を十分に活用し
、記録できる信号の種類が多いだけでなく、ＳＤＤ信号
関しては同時に記録できる信号数も記録時間も、従来よ
りも飛躍的に自由に選べる。In addition, when recording one SDD signal for a long time, switch the processing speed of the circuit to one that handles one SDD signal.
It is better to reduce the tape feed speed to 1/4. Such operations can be fully realized using conventionally known techniques. In this way, the present invention makes full use of the potential of HD VTRs, and not only can record many types of signals, but also dramatically increases the number of signals that can be recorded simultaneously and the recording time for SDD signals compared to the past. You can choose freely.

本発明は、例えば、テレビのＳ　Ｉ）信号について、各
チャンネルの信号を同時に記録することが出来るなど便
利なものである。INDUSTRIAL APPLICABILITY The present invention is convenient in that, for example, it is possible to simultaneously record the signals of each channel regarding TV SI signals.

発明の効果 本発明は１つのＨＤ信号または１つのＳＤＤ信号記録す
るだけでなく、複数のＳＤＤ信号同時に記録できろ機能
を実現する。このような自由度の高い機能は、ＨＤＶＴ
Ｒのような将来の映像記録機器にとって、実用−ヒの効
果が大きい。また、１ＳＤＮ等の動画像伝送に用いても
大きな効果かある。Effects of the Invention The present invention realizes the function of not only recording one HD signal or one SDD signal but also recording a plurality of SDD signals simultaneously. Such highly flexible functions are available in HDVT.
This will have a great practical effect on future video recording equipment such as R. Furthermore, it is also very effective to use it for video transmission such as 1SDN.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の第１の実施例の記録回路の一例を示す
プロ・ツク図、第２図は同第１の実施例の再生回路の一
例を示すブロック図、第３図は本発明の第２の実施例の
記録回路の一例を示すブロック図、第４図は同第２の実
施例の再生回路の一例を示すブロック図である。 ｌ・・・第１受信手段、２〜５・・・第２受信手段、６
〜１３・・・選択手段、１４〜１７・・・記録手段、１
８〜２１・・・再生手段、２２・・・再現手段、２３．
２５・・・統合手段、２６・・・記録伝送手段、２７・
・・再生手段、２８・・・再現手段（分配回路）。 代理人　弁理士　　松　１）正　道 第 図 ２２再王見千ｒ支 １８〜２１ 再生；はFIG. 1 is a block diagram showing an example of a recording circuit according to a first embodiment of the present invention, FIG. 2 is a block diagram showing an example of a reproducing circuit according to the first embodiment, and FIG. 3 is a block diagram showing an example of a reproducing circuit according to the first embodiment of the present invention. FIG. 4 is a block diagram showing an example of the recording circuit of the second embodiment, and FIG. 4 is a block diagram showing an example of the reproducing circuit of the second embodiment. l...first receiving means, 2-5...second receiving means, 6
~13... Selection means, 14-17... Recording means, 1
8-21... Reproducing means, 22... Reproducing means, 23.
25...integration means, 26...recording transmission means, 27.
... Reproduction means, 28... Reproduction means (distribution circuit). Agent Patent Attorney Matsu 1) Sei Michi No. 22 Re-Omi Senrishi 18-21 Reproduction;

Claims (5)

【特許請求の範囲】[Claims] （１）第１入力信号を受信する第１受信手段と、それぞ
れが前記第１入力信号より情報量の少ない複数の第２入
力信号を同時に受信できる第２受信手段と、前記第１受
信手段の出力を選択する場合は前記第１受信手段の出力
を複数Ｎに分配して出力し、前記第２受信手段の出力を
選択する場合は前記第２受信手段の出力を統合し最大Ｎ
に分配する選択手段と、前記選択手段の出力に対して記
録するための処理を施す記録手段を備えることを特徴と
する信号処理装置。(1) a first receiving means that receives a first input signal; a second receiving means that can simultaneously receive a plurality of second input signals, each of which has a smaller amount of information than the first input signal; When selecting an output, the output of the first receiving means is distributed to a plurality of N and outputted, and when selecting an output of the second receiving means, the outputs of the second receiving means are integrated and outputted to a maximum of N.
What is claimed is: 1. A signal processing device comprising: a selection means for distributing the output to the output of the selection means; and a recording means for performing recording processing on the output of the selection means. （２）請求項１の信号処理装置によって記録された信号
の再生信号を受信し、前記記録するための処理と逆の処
理を施す再生手段と、前記再生手段の出力を統合して前
記第１入力信号を再現するか、または前記再生手段の出
力を結合分配して前記第１入力信号よりも情報量が少な
い一つ以上の前記第２入力信号を再現する再現手段を備
えることを特徴とする信号処理装置。(2) Reproducing means for receiving a reproduced signal of the signal recorded by the signal processing device according to claim 1 and performing a process opposite to the recording process, and integrating the output of the reproducing means to It is characterized by comprising reproduction means for reproducing the input signal or combining and distributing the outputs of the reproduction means to reproduce one or more of the second input signals having a smaller amount of information than the first input signal. Signal processing device. （３）第１入力信号を入力する第１受信手段と、それぞ
れが前記第１入力信号より情報量の少ない複数の第２入
力信号をそれぞれ同時に受信できる第２受信手段と、前
記第１受信手段の出力をそのまま出力とするか、または
前記第２受信手段の出力を統合して出力する統合手段と
、前記統合手段の出力に対して記録または伝送するため
の処理を施す記録伝送手段を備えることを特徴とする信
号処理装置。(3) a first receiving means that inputs a first input signal, a second receiving means that can simultaneously receive a plurality of second input signals each having a smaller amount of information than the first input signal, and the first receiving means and a recording and transmitting means that performs processing for recording or transmitting the output of the integrating means. A signal processing device characterized by: （４）請求項３の信号処理装置によって記録または伝送
された信号の再生信号または受信信号を、前記記録また
は伝送のための処理と逆の処理を施す再生手段と、前記
再生手段の出力を用いて前記第１入力信号を再現するか
、または前記再生手段の出力を分配して、前記第１入力
信号より情報量の少ない一つ以上の第２の入力信号を再
現する再現手段を備えることを特徴とする信号処理装置
。(4) Reproducing means for subjecting the reproduced signal or received signal of the signal recorded or transmitted by the signal processing device according to claim 3 to processing opposite to the processing for said recording or transmission, and using the output of said reproducing means. the first input signal, or distributes the output of the reproduction means to reproduce one or more second input signals having a smaller amount of information than the first input signal; Characteristic signal processing device. （５）第１入力信号は高品位映像信号であり、第２入力
信号は現行映像信号であることを特徴とする請求項１、
２、３または４記載の信号処理装置。(5) Claim 1, wherein the first input signal is a high-quality video signal, and the second input signal is a current video signal.
5. The signal processing device according to 2, 3 or 4.