JPS6020005U - Recording bias oscillation circuit - Google Patents
Recording bias oscillation circuitInfo
- Publication number
- JPS6020005U JPS6020005U JP10993583U JP10993583U JPS6020005U JP S6020005 U JPS6020005 U JP S6020005U JP 10993583 U JP10993583 U JP 10993583U JP 10993583 U JP10993583 U JP 10993583U JP S6020005 U JPS6020005 U JP S6020005U
- Authority
- JP
- Japan
- Prior art keywords
- recording
- pair
- bias
- supplied
- main
- 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
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図Ａ、 Ｂは夫々ダビングモード、同時録音モード
の各録再装置の動作を説明するための図、 ゛第２図
は本考案回路の一実施例の回路図である。
４・・・・・・主バイアス発振器、５１．５□・・・・
・・同期発振器、６・・・・・・電源端子、７１，７゜
・・・・・・動作制御信号入力端子、８□、８□・・・
・・・録音信号入力端子、９’１． ９２・・・・・・
録音バイアス電流出力端子、１０１゜１０□・・・・・
・消去電流出力端子、Ｘ０〜Ｘ□２・・・・・・トラン
ジスタ、Ｄ□、Ｄ２・・・・・・ダイオード。FIGS. 1A and 1B are diagrams for explaining the operation of each recording/reproducing apparatus in dubbing mode and simultaneous recording mode, respectively. FIG. 2 is a circuit diagram of an embodiment of the circuit of the present invention. 4... Main bias oscillator, 51.5□...
...Synchronous oscillator, 6...Power supply terminal, 71,7゜...Operation control signal input terminal, 8□, 8□...
... Recording signal input terminal, 9'1. 92...
Recording bias current output terminal, 101°10□・・・・・・
- Erase current output terminal, X0 to X□2...transistor, D□, D2...diode.
Claims (2)
／再生可能な一対の録再装置に夫々録音バイアスを供給
する録音バイアス発振回路において、録音バイアス周波
数で発振する１個の主バイアス発振器と、該主バイアス
発振器に並列に接続され該主バイアス発振器の出力発振
周波数を供給されて上記一対の録再装置に夫々録音バイ
アスを供給する一対の同期発振器又は一対の増幅器とよ
りなる録音バイアス発振回路。(1) In a recording bias oscillator circuit that supplies recording bias to a pair of recording/playback capable recording/playback devices housed in the same set of tape recorders, one main bias oscillator oscillates at a recording bias frequency; A recording bias oscillation circuit comprising a pair of synchronous oscillators or a pair of amplifiers connected in parallel to the main bias oscillator and supplied with the output oscillation frequency of the main bias oscillator to respectively supply recording bias to the pair of recording and reproducing devices.
録音状態にする際電力を供給されるラインに共通にその
電力供給端子を接続され、該一対の同期発振器又は一対
の増幅器は、該一対の録音装置を夫々録音状態にする際
電力を供給される一対のラインにその夫々の電力供給端
子を夫々接続されてなる実用新案登録請求の範囲第１項
記載の録音バイアス発振回路。(2) The main bias oscillators have their power supply terminals commonly connected to a line to which power is supplied when each of the pair of recording and reproducing devices is placed in a recording state, and the pair of synchronous oscillators or the pair of amplifiers The recording bias oscillator circuit according to claim 1, wherein the respective power supply terminals are connected to a pair of lines to which power is supplied when the pair of recording devices are placed in a recording state, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10993583U JPS6020005U (en) | 1983-07-14 | 1983-07-14 | Recording bias oscillation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10993583U JPS6020005U (en) | 1983-07-14 | 1983-07-14 | Recording bias oscillation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6020005U true JPS6020005U (en) | 1985-02-12 |
Family
ID=30255889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10993583U Pending JPS6020005U (en) | 1983-07-14 | 1983-07-14 | Recording bias oscillation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020005U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62239033A (en) * | 1986-04-11 | 1987-10-19 | Sony Corp | Operation discriminating device for photosensor |
| JPH03277944A (en) * | 1990-03-28 | 1991-12-09 | Koufu Nippon Denki Kk | Circuit for checking optical sensor |
| JPH0424591A (en) * | 1990-05-18 | 1992-01-28 | Oki Electric Ind Co Ltd | Medium detection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819710A (en) * | 1981-07-28 | 1983-02-04 | Clarion Co Ltd | Bias supplying system of tape recorder |
-
1983
- 1983-07-14 JP JP10993583U patent/JPS6020005U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819710A (en) * | 1981-07-28 | 1983-02-04 | Clarion Co Ltd | Bias supplying system of tape recorder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62239033A (en) * | 1986-04-11 | 1987-10-19 | Sony Corp | Operation discriminating device for photosensor |
| JPH03277944A (en) * | 1990-03-28 | 1991-12-09 | Koufu Nippon Denki Kk | Circuit for checking optical sensor |
| JPH0424591A (en) * | 1990-05-18 | 1992-01-28 | Oki Electric Ind Co Ltd | Medium detection device |
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