Sharp Kabushiki Kaisha Corporation

Norimasa Yamaguchi

Atsushi Aoki

Hiroaki Niwamoto

Toshiyuki Iwai

Masahiro Esashi

Tsukasa Kaminokado

A digital information recording carrier has a planar recording surface having an information recording area in which cells corresponding to bits are virtually set in a matrix form, each cell being provided with an optically recognizable mark corresponding to digital information so that the digital information is recorded in the information recording area as a two-dimensional pattern. The carrier also has specific patterns each consisting of a plurality of cells which are linked together and which are given marks in a given pattern. Some of the specific patterns are placed in an inner portion apart from a perimeter of the information recording area.

Method and apparatus for recording digital information in two-dimensional pattern, carrier of digital information recorded thereby, and a method and apparatus for decoding such digital information

A digital information recording carrier has a planar recording surface having an information recording area in which meshes corresponding to bits are virtually set in a matrix form, each mesh being provided with an optically recognizable mark corresponding to digital information so that the digital information is recorded in the information recording area as a two-dimensional pattern. The carrier also has specific patterns each consisting of a plurality of meshes which are linked together and which are given marks in a given pattern. Some of the specific patterns are placed in an inner portion apart from a perimeter of the information recording area.

Growing community of inventors

Ikoma-gun, Japan

Norimasa Yamaguchi