CA1067206A - Appareil et methode de verification de l'information enregistree sur un disque video - Google Patents

Appareil et methode de verification de l'information enregistree sur un disque video

Info

Publication number
CA1067206A
CA1067206A CA313,004A CA313004A CA1067206A CA 1067206 A CA1067206 A CA 1067206A CA 313004 A CA313004 A CA 313004A CA 1067206 A CA1067206 A CA 1067206A
Authority
CA
Canada
Prior art keywords
signal
writing
light
video information
intensity
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.)
Expired
Application number
CA313,004A
Other languages
English (en)
Inventor
John S. Winslow
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.)
Discovision Associates
Original Assignee
MCA Discovision Inc
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
Priority claimed from CA289,623A external-priority patent/CA1069214A/fr
Application filed by MCA Discovision Inc filed Critical MCA Discovision Inc
Priority to CA313,004A priority Critical patent/CA1067206A/fr
Application granted granted Critical
Publication of CA1067206A publication Critical patent/CA1067206A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
CA313,004A 1977-10-27 1978-10-10 Appareil et methode de verification de l'information enregistree sur un disque video Expired CA1067206A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA313,004A CA1067206A (fr) 1977-10-27 1978-10-10 Appareil et methode de verification de l'information enregistree sur un disque video

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA289,623A CA1069214A (fr) 1973-02-20 1977-10-27 Methode de production de disque video
CA313,004A CA1067206A (fr) 1977-10-27 1978-10-10 Appareil et methode de verification de l'information enregistree sur un disque video

Publications (1)

Publication Number Publication Date
CA1067206A true CA1067206A (fr) 1979-11-27

Family

ID=25668590

Family Applications (1)

Application Number Title Priority Date Filing Date
CA313,004A Expired CA1067206A (fr) 1977-10-27 1978-10-10 Appareil et methode de verification de l'information enregistree sur un disque video

Country Status (1)

Country Link
CA (1) CA1067206A (fr)

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