JPS6418464U - - Google Patents
Info
- Publication number
- JPS6418464U JPS6418464U JP11221087U JP11221087U JPS6418464U JP S6418464 U JPS6418464 U JP S6418464U JP 11221087 U JP11221087 U JP 11221087U JP 11221087 U JP11221087 U JP 11221087U JP S6418464 U JPS6418464 U JP S6418464U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- control signal
- information block
- information
- utility
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は情報信号の記録装置の一例を示す系統
図、第２図はこの考案に係る制御信号を使用した
ミユーテイング回路を有した再生装置の一例を示
す系統図、第３図は記録再生の説明に供する波形
図、第４図はテープの記録フオーマツトを示す図
、第５図は従来の情報信号と制御信号との関係を
示す図、第６図は記録周波数と記録レベルとを示
す特性図である。
１３，３２……ミユーテイング回路、２０，２
１……第１及び第２の基準発振器、２３……信号
選択回路、２５……レベル制御回路、３０……再
生装置、ＨＬ，ＨＲ……磁気ヘツド、Ｓ１，Ｓ２
……第１及び第２の基準信号（第１及び第２のミ
ユーテイング信号）。
FIG. 1 is a system diagram showing an example of an information signal recording device, FIG. 2 is a system diagram showing an example of a reproducing device having a muting circuit using a control signal according to this invention, and FIG. A waveform diagram for explanation; FIG. 4 is a diagram showing the tape recording format; FIG. 5 is a diagram showing the relationship between conventional information signals and control signals; FIG. 6 is a characteristic diagram showing recording frequency and recording level. It is. 13, 32... Muting circuit, 20, 2
DESCRIPTION OF SYMBOLS 1...First and second reference oscillators, 23...Signal selection circuit, 25...Level control circuit, 30...Reproducing device, HL, HR...Magnetic head, S1 , S2
...first and second reference signals (first and second muting signals).
Claims (1)
ツクに記録されると共に、 上記情報ブロツクの先頭又は終了位置を検出す
るための制御信号が第２のトラツクに記録され、 上記制御信号は上記情報ブロツクに関連した第
１の基準信号と上記情報ブロツク以外の無音ブロ
ツクに関連した第２の基準信号とで構成され、 上記情報信号の再生時、上記制御信号がミユー
テイング信号として使用されてなることを特徴と
する制御信号を使用したミユーテイング回路。 (2) 上記第１の基準信号は、定常再生時におい
て検出できないような単一の低周波信号が使用さ
れてなることを特徴とする実用新案登録請求の範
囲第１項記載の制御信号を使用したミユーテイン
グ回路。 (3) 上記第２の基準信号は、高速再生時におい
て検出できないような高周波信号が使用されてな
ることを特徴とする実用新案登録請求の範囲第１
項及び第２項記載の制御信号を使用したミユーテ
イング回路。[Claims for Utility Model Registration] (1) An information signal is recorded on a first track for each information block, and a control signal for detecting the start or end position of the information block is recorded on a second track. and the control signal is composed of a first reference signal related to the information block and a second reference signal related to a silent block other than the information block, and when the information signal is reproduced, the control signal is muted. A muting circuit using a control signal, characterized in that it is used as a signal. (2) The first reference signal uses the control signal set forth in claim 1 of the utility model registration claim, characterized in that a single low frequency signal that cannot be detected during steady reproduction is used. Muting circuit. (3) Utility model registration claim 1, characterized in that the second reference signal is a high-frequency signal that cannot be detected during high-speed reproduction.
A mutating circuit using the control signals described in Items 1 and 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11221087U JPH0627022Y2 (en) | 1987-07-22 | 1987-07-22 | Muting circuit using control signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11221087U JPH0627022Y2 (en) | 1987-07-22 | 1987-07-22 | Muting circuit using control signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6418464U true JPS6418464U (en) | 1989-01-30 |
| JPH0627022Y2 JPH0627022Y2 (en) | 1994-07-20 |
Family
ID=31350940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11221087U Expired - Lifetime JPH0627022Y2 (en) | 1987-07-22 | 1987-07-22 | Muting circuit using control signals |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627022Y2 (en) |
-
1987
- 1987-07-22 JP JP11221087U patent/JPH0627022Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0627022Y2 (en) | 1994-07-20 |
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