JPS6391859U - - Google Patents
Info
- Publication number
- JPS6391859U JPS6391859U JP18812686U JP18812686U JPS6391859U JP S6391859 U JPS6391859 U JP S6391859U JP 18812686 U JP18812686 U JP 18812686U JP 18812686 U JP18812686 U JP 18812686U JP S6391859 U JPS6391859 U JP S6391859U
- Authority
- JP
- Japan
- Prior art keywords
- recording
- audio signal
- audio
- recording method
- reproducing head
- 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
- 238000000034 method Methods 0.000 claims description 6
- 230000005236 sound signal Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は本考案の音声記録方式判別回路の概略
ブロツク図、第２図はＦＭ変調記録方式とＰＣＭ
記録方式で記録された音声信号の周波数スペクト
ラムである。
１…録再ヘツド、２…再生プリアンプ、３…第
１バンドパスフイルタ、４…第２バンドパスフイ
ルタ、５…第１検波回路、６…第２検波回路、７
…第１コンパレータ、８…第２コンパレータ、９
…モード切換信号発生回路、１０…ＰＣＭ復調回
路、１１…ＦＭ復調回路、１２…音声切換回路、
１３…固定音声ヘツド、１５…音声出力回路。
Fig. 1 is a schematic block diagram of the audio recording method discrimination circuit of the present invention, and Fig. 2 shows the FM modulation recording method and PCM.
This is a frequency spectrum of an audio signal recorded using a recording method. DESCRIPTION OF SYMBOLS 1... Recording/playback head, 2... Playback preamplifier, 3... First bandpass filter, 4... Second bandpass filter, 5... First detection circuit, 6... Second detection circuit, 7
...First comparator, 8...Second comparator, 9
...Mode switching signal generation circuit, 10...PCM demodulation circuit, 11...FM demodulation circuit, 12...Audio switching circuit,
13... Fixed audio head, 15... Audio output circuit.
Claims (1)
置において、 磁気テープ上に記録された音声信号の記録方式
を録再ヘツドからの再生音声信号の周波数に基い
て判別する判別手段と、 この判別手段の判別結果に基いて録再ヘツドか
らの再生音声信号を該音声信号の記録方式に合つ
た適正な復調回路で復調された音声信号に切換え
て出力する切換手段とを備えたことを特徴とする
音声記録方式判別回路。[Claim for Utility Model Registration] In a magnetic recording and reproducing device having a recording/reproducing head exclusively for audio, the recording method of an audio signal recorded on a magnetic tape is determined based on the frequency of the reproduced audio signal from the recording/reproducing head. A determining means, and a switching means for switching the reproduced audio signal from the recording/reproducing head to an audio signal demodulated by a proper demodulation circuit suitable for the recording method of the audio signal based on the determination result of the determining means and outputting the same. An audio recording method discrimination circuit characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18812686U JPS6391859U (en) | 1986-12-05 | 1986-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18812686U JPS6391859U (en) | 1986-12-05 | 1986-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6391859U true JPS6391859U (en) | 1988-06-14 |
Family
ID=31139204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18812686U Pending JPS6391859U (en) | 1986-12-05 | 1986-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6391859U (en) |
-
1986
- 1986-12-05 JP JP18812686U patent/JPS6391859U/ja active Pending
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