JPS6344582U - - Google Patents
Info
- Publication number
- JPS6344582U JPS6344582U JP1986139122U JP13912286U JPS6344582U JP S6344582 U JPS6344582 U JP S6344582U JP 1986139122 U JP1986139122 U JP 1986139122U JP 13912286 U JP13912286 U JP 13912286U JP S6344582 U JPS6344582 U JP S6344582U
- Authority
- JP
- Japan
- Prior art keywords
- signals
- recording
- circuit
- band
- bands
- 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
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Description
第１図は本考案の記録再生装置の記録系を示す
概略ブロツク図、第２図は同装置の再生系を示す
概略ブロツク図、第３図及び第４図は各信号の周
波数スペクトルである。
１……ＡＧＣ回路、２……プリエンフアシス回
路、３……ＦＭ変調回路、４，１７……クロマト
ラツプ回路、５，１１……帯域切換スイツチ、６
，１２……オーデイオＦＭトラツプ回路、７……
記録アンプ、８……磁気ヘツド、９……磁気テー
プ、１０……ヘツドアンプ、１３……オーデイオ
ＦＭキヤリア検出回路、１４……バンドパスフイ
ルタ、１５……ドロツプアウト検波回路、１６…
…積分回路、１８……ＦＭ復調回路、１９……デ
イエンフアシス回路、２０……クロマ処理回路、
２１……ビデオ出力回路。
FIG. 1 is a schematic block diagram showing the recording system of the recording and reproducing apparatus of the present invention, FIG. 2 is a schematic block diagram showing the reproducing system of the same apparatus, and FIGS. 3 and 4 are frequency spectra of each signal. 1... AGC circuit, 2... Pre-emphasis circuit, 3... FM modulation circuit, 4, 17... Chroma trap circuit, 5, 11... Band selection switch, 6
, 12...Audio FM trap circuit, 7...
Recording amplifier, 8...Magnetic head, 9...Magnetic tape, 10...Head amplifier, 13...Audio FM carrier detection circuit, 14...Band pass filter, 15...Dropout detection circuit, 16...
... Integration circuit, 18 ... FM demodulation circuit, 19 ... De-emphasis circuit, 20 ... Chroma processing circuit,
21...Video output circuit.
Claims (1)
号、オーデイオＦＭ信号、及びパイロツト信号な
どの帯域を割り当てている記録再生装置において
、前記した各信号のうちある一つの信号帯域がな
い時、帯域制限をしているフイルタ、トラツプ等
の特性を制御して他の一つの信号帯域を前記一つ
の信号帯域分だけ増加する手段を備えたことを特
徴とする記録再生装置。 In a recording and reproducing device that allocates bands for FM modulated luminance signals, chroma signals, audio FM signals, pilot signals, etc. by frequency division, when one of the above-mentioned signal bands is missing, the band is limited. 1. A recording/reproducing apparatus comprising means for controlling the characteristics of a filter, a trap, etc., and increasing another signal band by the amount of said one signal band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986139122U JPS6344582U (en) | 1986-09-09 | 1986-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986139122U JPS6344582U (en) | 1986-09-09 | 1986-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6344582U true JPS6344582U (en) | 1988-03-25 |
Family
ID=31044725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986139122U Pending JPS6344582U (en) | 1986-09-09 | 1986-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6344582U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644285A (en) * | 1979-09-20 | 1981-04-23 | Matsushita Electric Ind Co Ltd | Video and sound signal recording device |
| JPS59104888A (en) * | 1982-12-08 | 1984-06-16 | Matsushita Electric Ind Co Ltd | Recording and reproducing system of television signal |
| JPS6286995A (en) * | 1985-10-14 | 1987-04-21 | Hitachi Ltd | Magnetic recording and reproducing device |
-
1986
- 1986-09-09 JP JP1986139122U patent/JPS6344582U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644285A (en) * | 1979-09-20 | 1981-04-23 | Matsushita Electric Ind Co Ltd | Video and sound signal recording device |
| JPS59104888A (en) * | 1982-12-08 | 1984-06-16 | Matsushita Electric Ind Co Ltd | Recording and reproducing system of television signal |
| JPS6286995A (en) * | 1985-10-14 | 1987-04-21 | Hitachi Ltd | Magnetic recording and reproducing device |
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