JPS5652975A - Video signal reproducing device - Google Patents

Video signal reproducing device

Info

Publication number
JPS5652975A
JPS5652975A JP12959879A JP12959879A JPS5652975A JP S5652975 A JPS5652975 A JP S5652975A JP 12959879 A JP12959879 A JP 12959879A JP 12959879 A JP12959879 A JP 12959879A JP S5652975 A JPS5652975 A JP S5652975A
Authority
JP
Japan
Prior art keywords
circuit
counter
adders
input terminal
electrical
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
JP12959879A
Other languages
Japanese (ja)
Other versions
JPS6242557B2 (en
Inventor
Shinji Amari
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP12959879A priority Critical patent/JPS5652975A/en
Publication of JPS5652975A publication Critical patent/JPS5652975A/en
Publication of JPS6242557B2 publication Critical patent/JPS6242557B2/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head

Abstract

PURPOSE:To prevent a tracking error by generating a driving signal so that the maximum mechanical displacement by the electrical-mechanical converter element of plural rotary magnetic heads can be executed at a fixed time before each reproduction starting time point of plural rotary magnetic heads. CONSTITUTION:A head change-over signal from the input terminal 1 is provided to the differentiation circuit 2. Differential pulses from the differentiation circuit 2 are counted by the counter 8. A parallel output of the counter 4 is provided to the D/A converter 5, and it becomes a staircase wave, and is provided to the adders 9a, 9b. Also, a carry output from the counter 4 is provided to the AND circuits 6, 7. On the other hand, a head change-over signal from the input terminal 1 is provided to the AND circuit 7, and at the same time it is provided to the AND circuit 6 through the inverter circuit 8. The outputs from the adders 11a, 11b are provided to the electrical - mechanical conversion elements Ma, Mo through the low pass filters 12a, 12b and the driving amplifiers 13a, 13b.
JP12959879A 1979-10-08 1979-10-08 Video signal reproducing device Granted JPS5652975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12959879A JPS5652975A (en) 1979-10-08 1979-10-08 Video signal reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12959879A JPS5652975A (en) 1979-10-08 1979-10-08 Video signal reproducing device

Publications (2)

Publication Number Publication Date
JPS5652975A true JPS5652975A (en) 1981-05-12
JPS6242557B2 JPS6242557B2 (en) 1987-09-09

Family

ID=15013403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12959879A Granted JPS5652975A (en) 1979-10-08 1979-10-08 Video signal reproducing device

Country Status (1)

Country Link
JP (1) JPS5652975A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7243459B2 (en) * 2019-05-31 2023-03-22 株式会社デンソー vehicle equipment

Also Published As

Publication number Publication date
JPS6242557B2 (en) 1987-09-09

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