JPS5628573A - Head reproducing signal switching unit - Google Patents
Head reproducing signal switching unitInfo
- Publication number
- JPS5628573A JPS5628573A JP10406879A JP10406879A JPS5628573A JP S5628573 A JPS5628573 A JP S5628573A JP 10406879 A JP10406879 A JP 10406879A JP 10406879 A JP10406879 A JP 10406879A JP S5628573 A JPS5628573 A JP S5628573A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reproducing
- head
- synchronizing
- reproducing signal
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
- G11B15/14—Masking or switching periodically, e.g. of rotating heads
Landscapes
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE:To obtain a maximum quantity of reproducing information, from the reproducing head signal and obtain the vertical driving signal also, by detecting whether the reproducing signal exists in the synchronizing head time of the reproducing signal or not and by controlling the switching position by this detection signal. CONSTITUTION:Reproducing head signals 11 and 12 induced by video head 5 and synchronizing head 6 are input to switch circuit 7. If the high-frequency signal (reproducing signal) exists in the synchronizing head time, timing signal generating circuit 10 generates switching control signal 19 so that the switching position may be at switch points 23 and 26, and switch circuit 7 is driven. If the high-frequency signal does not exist in the synchronizing head time, timing signal generating circuit 10 generates the switching control signal so that the switching position is switch points 24 and 25, and switch circuit 7 is driven.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10406879A JPS5628573A (en) | 1979-08-17 | 1979-08-17 | Head reproducing signal switching unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10406879A JPS5628573A (en) | 1979-08-17 | 1979-08-17 | Head reproducing signal switching unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5628573A true JPS5628573A (en) | 1981-03-20 |
JPS6358433B2 JPS6358433B2 (en) | 1988-11-15 |
Family
ID=14370840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10406879A Granted JPS5628573A (en) | 1979-08-17 | 1979-08-17 | Head reproducing signal switching unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5628573A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2728476A1 (en) * | 1994-12-23 | 1996-06-28 | App De Protection Soc Nouv | Active carbon particulate filling for respiratory filter |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0577833U (en) * | 1992-03-26 | 1993-10-22 | 松下電器産業株式会社 | Electronic device operating device |
-
1979
- 1979-08-17 JP JP10406879A patent/JPS5628573A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2728476A1 (en) * | 1994-12-23 | 1996-06-28 | App De Protection Soc Nouv | Active carbon particulate filling for respiratory filter |
Also Published As
Publication number | Publication date |
---|---|
JPS6358433B2 (en) | 1988-11-15 |
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