JPS5628573A - Head reproducing signal switching unit - Google Patents

Head reproducing signal switching unit

Info

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
Application number
JP10406879A
Other languages
Japanese (ja)
Other versions
JPS6358433B2 (en
Inventor
Natsuki Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP10406879A priority Critical patent/JPS5628573A/en
Publication of JPS5628573A publication Critical patent/JPS5628573A/en
Publication of JPS6358433B2 publication Critical patent/JPS6358433B2/ja
Granted legal-status Critical Current

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.
JP10406879A 1979-08-17 1979-08-17 Head reproducing signal switching unit Granted JPS5628573A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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