JPS5635577A - Video disk recording system - Google Patents

Video disk recording system

Info

Publication number
JPS5635577A
JPS5635577A JP11026779A JP11026779A JPS5635577A JP S5635577 A JPS5635577 A JP S5635577A JP 11026779 A JP11026779 A JP 11026779A JP 11026779 A JP11026779 A JP 11026779A JP S5635577 A JPS5635577 A JP S5635577A
Authority
JP
Japan
Prior art keywords
radius
disk
record
video disk
recording system
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
JP11026779A
Other languages
Japanese (ja)
Other versions
JPS6252989B2 (en
Inventor
Kyoichi Yamashita
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11026779A priority Critical patent/JPS5635577A/en
Publication of JPS5635577A publication Critical patent/JPS5635577A/en
Publication of JPS6252989B2 publication Critical patent/JPS6252989B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/7605—Television signal recording on discs or drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To realize a high-density recording by setting the minimum record radius of the video disk to nr (n: integer of >=2; r: recordable minimum radius) and then the rotational frequency of the disk to 1/n respectively. CONSTITUTION:The rotational velocity VR given to the disk driving system 11 from outside is set to 1/2 compared with the velocity decided by the scale of the disk main body. And furthermore if both the record optical system 12 and the reproduction optical system 13 are excluded out of the subject of scanning in the range from r to 2r, the record of two screens becomes possible with every track and in the region from the radius 2r to the radius 2R (R: recordable maximum radius).
JP11026779A 1979-08-31 1979-08-31 Video disk recording system Granted JPS5635577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11026779A JPS5635577A (en) 1979-08-31 1979-08-31 Video disk recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11026779A JPS5635577A (en) 1979-08-31 1979-08-31 Video disk recording system

Publications (2)

Publication Number Publication Date
JPS5635577A true JPS5635577A (en) 1981-04-08
JPS6252989B2 JPS6252989B2 (en) 1987-11-09

Family

ID=14531347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11026779A Granted JPS5635577A (en) 1979-08-31 1979-08-31 Video disk recording system

Country Status (1)

Country Link
JP (1) JPS5635577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7305689B2 (en) 1999-06-22 2007-12-04 Sony Corporation Optical recording medium and disc cartridge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132217A (en) * 1974-09-13 1976-03-18 Teac Corp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132217A (en) * 1974-09-13 1976-03-18 Teac Corp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7305689B2 (en) 1999-06-22 2007-12-04 Sony Corporation Optical recording medium and disc cartridge
US7454771B2 (en) 1999-06-22 2008-11-18 Sony Corporation Optical recording medium and disc cartridge

Also Published As

Publication number Publication date
JPS6252989B2 (en) 1987-11-09

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