MX9602805A - Aparato formador de marcas y metodo para formar marcas de laser en el disco optico, aparato reproductor, disco optico y metodo para producir el disco optico. - Google Patents

Aparato formador de marcas y metodo para formar marcas de laser en el disco optico, aparato reproductor, disco optico y metodo para producir el disco optico.

Info

Publication number
MX9602805A
MX9602805A MX9602805A MX9602805A MX9602805A MX 9602805 A MX9602805 A MX 9602805A MX 9602805 A MX9602805 A MX 9602805A MX 9602805 A MX9602805 A MX 9602805A MX 9602805 A MX9602805 A MX 9602805A
Authority
MX
Mexico
Prior art keywords
optical disk
marking
reproducing apparatus
forming laser
generating apparatus
Prior art date
Application number
MX9602805A
Other languages
English (en)
Inventor
Mitsuaki Oshima
Yoshiho Gotoh
Original Assignee
Matsushita Electric Ind 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 Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority claimed from PCT/JP1995/002339 external-priority patent/WO1996016401A1/ja
Publication of MX9602805A publication Critical patent/MX9602805A/es

Links

Landscapes

  • Manufacturing Optical Record Carriers (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

Un objetivo de la presente invencion es un aparato formador de marcas, un método de formacion de una marca por láser sobre un disco optico, un aparato de reproduccion, un disco optico y un método de fabricacion de un disco optico capaz de proporcionar una capacidad de prevencion de copiado ampliamente mejorada comparada con la construccion conocida anterior. Para lograr este objetivo, en el disco optico de la invencion, por ejemplo, se forma una marca por láser sobre una película reflexiva de un disco que mantiene los datos escritos en el mismo y se escriben al menos la informacion de la posicion de la marca o la informacion relacionada con la informacion de la posicion, sobre el disco en una forma criptografiada o con una señal digital de identificacion unida a la misma.
MX9602805A 1994-11-17 1995-11-16 Aparato formador de marcas y metodo para formar marcas de laser en el disco optico, aparato reproductor, disco optico y metodo para producir el disco optico. MX9602805A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28341594 1994-11-17
PCT/JP1995/002339 WO1996016401A1 (fr) 1994-11-17 1995-11-16 Appareil generateur de marquage, procede de formation d'un marquage au laser sur disque optique, appareil de reproduction, disque optique et procede de production de disque optique

Publications (1)

Publication Number Publication Date
MX9602805A true MX9602805A (es) 1997-06-28

Family

ID=38963025

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9602805A MX9602805A (es) 1994-11-17 1995-11-16 Aparato formador de marcas y metodo para formar marcas de laser en el disco optico, aparato reproductor, disco optico y metodo para producir el disco optico.

Country Status (1)

Country Link
MX (1) MX9602805A (es)

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