JPS56119940A - Recording and reproducing system of video signal - Google Patents

Recording and reproducing system of video signal

Info

Publication number
JPS56119940A
JPS56119940A JP2254480A JP2254480A JPS56119940A JP S56119940 A JPS56119940 A JP S56119940A JP 2254480 A JP2254480 A JP 2254480A JP 2254480 A JP2254480 A JP 2254480A JP S56119940 A JPS56119940 A JP S56119940A
Authority
JP
Japan
Prior art keywords
recording
recorded
optical
signal
video 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
JP2254480A
Other languages
English (en)
Other versions
JPS6239492B2 (ja
Inventor
Shunji Kanamaru
Hideo Okamura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2254480A priority Critical patent/JPS56119940A/ja
Publication of JPS56119940A publication Critical patent/JPS56119940A/ja
Publication of JPS6239492B2 publication Critical patent/JPS6239492B2/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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP2254480A 1980-02-25 1980-02-25 Recording and reproducing system of video signal Granted JPS56119940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2254480A JPS56119940A (en) 1980-02-25 1980-02-25 Recording and reproducing system of video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2254480A JPS56119940A (en) 1980-02-25 1980-02-25 Recording and reproducing system of video signal

Publications (2)

Publication Number Publication Date
JPS56119940A true JPS56119940A (en) 1981-09-19
JPS6239492B2 JPS6239492B2 (ja) 1987-08-24

Family

ID=12085757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2254480A Granted JPS56119940A (en) 1980-02-25 1980-02-25 Recording and reproducing system of video signal

Country Status (1)

Country Link
JP (1) JPS56119940A (ja)

Also Published As

Publication number Publication date
JPS6239492B2 (ja) 1987-08-24

Similar Documents

Publication Publication Date Title
JPS54143109A (en) Optical information device
DE3364892D1 (en) Optical information processor
JPS6464125A (en) Optical recording and reproducing method
MY131532A (en) Recording medium having track formed of land portion and groove portion, and reproducing apparatus therefor
MY128433A (en) Optical disc recording method and apparatus.
EP0411120A4 (en) LASER REPRODUCING APPARATUS.
JPS56119940A (en) Recording and reproducing system of video signal
CA2013385A1 (en) Optical/magnetic composite head having magnetic and optical heads in one integrated unit
WO1998028742A3 (en) Optical recording method and apparatus using this method
JPS5758248A (en) Readout method of high density light beam
JPS6479953A (en) Recording system for guide groove in optical disk
CA2177546A1 (en) Tracking Method and Device for Use with an Optical Recording Medium
JPS5483810A (en) Optical recording method
JPS5266407A (en) Disc form information signal recording medium
JPS5622231A (en) Optical disk duplicator
JPS53100203A (en) Optical reproducer
JPS5738191A (en) Recording method
JPS554724A (en) Information recording and reproducing device
JPS5348704A (en) Optical signal regenerator
JPS56148740A (en) Method for recording and erasing of optical information
JPS57179953A (en) Optical reproducing system
JPS52132837A (en) Laser recording system
JPS5413316A (en) Method for recording information signals in original of grooveless information recording medium disc
JPS5771527A (en) Optical recording and reproducing system
JPS5619528A (en) Optical recording and reproducing unit