JPS55160340A - Preventing circuit for error erasure of auto reverse unit - Google Patents
Preventing circuit for error erasure of auto reverse unitInfo
- Publication number
- JPS55160340A JPS55160340A JP6803979A JP6803979A JPS55160340A JP S55160340 A JPS55160340 A JP S55160340A JP 6803979 A JP6803979 A JP 6803979A JP 6803979 A JP6803979 A JP 6803979A JP S55160340 A JPS55160340 A JP S55160340A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- head
- tape
- track
- preventing circuit
- 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
Abstract
PURPOSE: To prevent recorded contents from being erased when a tape drive direction is reversed, by supplying a bias signal to a corresponding erasing head after change-over control over a recording/reproducing head from one track to the other.
CONSTITUTION: Recording/reproducing head 46 is arranged between erasing heads 42 and 43. While recording contents of one track on tape 47 are reproduced, contact 24 of recording/reproducing switch 22 is opened and bias oscillating circuit 29 is inoperative. Then, when the drive direction of tape 47 is inverted to start recording on the other track, moving piece 26 of switch 22 is connected to contact 24 and after change-over control over head 46 to the other track side of tape 47 is exercised completely, circuit 29 supplies an AC bias signal to head 43.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6803979A JPS55160340A (en) | 1979-05-31 | 1979-05-31 | Preventing circuit for error erasure of auto reverse unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6803979A JPS55160340A (en) | 1979-05-31 | 1979-05-31 | Preventing circuit for error erasure of auto reverse unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55160340A true JPS55160340A (en) | 1980-12-13 |
Family
ID=13362249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6803979A Pending JPS55160340A (en) | 1979-05-31 | 1979-05-31 | Preventing circuit for error erasure of auto reverse unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160340A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6064538A (en) * | 1997-02-17 | 2000-05-16 | Funai Electric Co., Ltd. | Biasing/erasing oscillation circuit for magnetic tape recording apparatus |
-
1979
- 1979-05-31 JP JP6803979A patent/JPS55160340A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6064538A (en) * | 1997-02-17 | 2000-05-16 | Funai Electric Co., Ltd. | Biasing/erasing oscillation circuit for magnetic tape recording apparatus |
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