JPS63169771U - - Google Patents
Info
- Publication number
- JPS63169771U JPS63169771U JP6039787U JP6039787U JPS63169771U JP S63169771 U JPS63169771 U JP S63169771U JP 6039787 U JP6039787 U JP 6039787U JP 6039787 U JP6039787 U JP 6039787U JP S63169771 U JPS63169771 U JP S63169771U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- signals
- audio
- decoders
- selecting
- 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.)
- Pending
Links
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第1図は本考案に係る音声多重記録回路のブロ
ツク図、第2図は磁気テープ上のトラツクパター
ンを示す図、第3図は従来回路のブロツク図、第
4図は音声多重信号の周波数スペクトラムを示す
図である。
2……第1デコーダ、3……第2デコーダ、4
……切替スイツチ回路、5……第1信号記録回路
、6……第2信号記録回路、9……切替制御回路
。
Figure 1 is a block diagram of an audio multiplex recording circuit according to the present invention, Figure 2 is a diagram showing a track pattern on a magnetic tape, Figure 3 is a block diagram of a conventional circuit, and Figure 4 is a frequency spectrum of an audio multiplex signal. FIG. 2...first decoder, 3...second decoder, 4
...Switch circuit, 5...First signal recording circuit, 6...Second signal recording circuit, 9...Switching control circuit.
Claims (1)
して、磁気テープのオーデイオトラツクとビデオ
トラツクへ夫々記録するVTRに於いて、前記音
声多重信号を復調して夫々第1及び第2の音声信
号を作成する第1及び第2のデコーダ2,3と、
前記第1及び第7の音声信号を磁気テープへの記
録信号に変換して夫々回転磁気ヘツド及び固定磁
気ヘツドへ供給する第1及び第2の信号記録回路
5,6と、前記デコーダ2,3と信号記録回路5
,6との間に介装された切替スイツチ回路4と、
該スイツチ回路4に連繋した切替制御回路9とか
ら構成され、切替スイツチ回路4は、2つのデコ
ーダ中、何れか一方のデコーダの出力信号を第1
及び第2の信号記録回路5の両方へ同時に接続す
る第1切替状態と、両デコーダの各出力信号を異
なる信号記録回路5,6へ別々に接続する第2切
替状態とを、切替制御回路9によつて選択的に設
定され、切替制御回路9は、第1及び第2切替状
態の一方を選定する為の切替状態設定キー16と
、第1切替状態にて両信号記録回路5,6へ接続
すべきデコーダを選定する為のモード設定キー1
5と、両設定キーの操作信号に基づき切替スイツ
チ回路4への切替信号を作成する論理制御部とか
ら構成されることを特徴とするVTRの音声多重
記録回路。 In a VTR that demodulates audio multiplexed signals of first and second broadcasting systems and records them respectively on an audio track and a video track of a magnetic tape, the audio multiplexed signals are demodulated to produce first and second audio, respectively. first and second decoders 2, 3 that create signals;
first and second signal recording circuits 5 and 6 that convert the first and seventh audio signals into recording signals on magnetic tape and supply them to a rotating magnetic head and a fixed magnetic head, respectively; and the decoders 2 and 3. and signal recording circuit 5
, 6, and
The switch circuit 4 is composed of a switching control circuit 9 connected to the switch circuit 4, and the switch circuit 4 switches the output signal of one of the two decoders to the first one.
and the second signal recording circuit 5 simultaneously, and a second switching state in which each output signal of both decoders is connected separately to different signal recording circuits 5 and 6, the switching control circuit 9 The switching control circuit 9 is selectively set by a switching state setting key 16 for selecting one of the first and second switching states, and a switching state setting key 16 for selecting one of the first and second switching states, and a switching state setting key 16 for selecting one of the first and second switching states. Mode setting key 1 for selecting the decoder to be connected
5, and a logic control section for creating a switching signal to the changeover switch circuit 4 based on operation signals of both setting keys.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6039787U JPS63169771U (en) | 1987-04-20 | 1987-04-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6039787U JPS63169771U (en) | 1987-04-20 | 1987-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63169771U true JPS63169771U (en) | 1988-11-04 |
Family
ID=30892772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6039787U Pending JPS63169771U (en) | 1987-04-20 | 1987-04-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63169771U (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58114678A (en) * | 1981-12-28 | 1983-07-08 | Sony Corp | Video and sound signal reproducer |
JPS60216678A (en) * | 1985-02-19 | 1985-10-30 | Canon Inc | Magnetic recording and reproducing device |
JPS61289775A (en) * | 1985-06-18 | 1986-12-19 | Sony Corp | Vtr |
-
1987
- 1987-04-20 JP JP6039787U patent/JPS63169771U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58114678A (en) * | 1981-12-28 | 1983-07-08 | Sony Corp | Video and sound signal reproducer |
JPS60216678A (en) * | 1985-02-19 | 1985-10-30 | Canon Inc | Magnetic recording and reproducing device |
JPS61289775A (en) * | 1985-06-18 | 1986-12-19 | Sony Corp | Vtr |
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