The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2001
Filed:
Mar. 05, 1998
Kenji Yoshioka, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A dot code is provided for recording digital data, such as multi-media information, as an optically readable code pattern, using various modulation methods, and a code reading apparatus is provided for restoring modulated information recorded as the dot code. The dot code includes a plurality of blocks. Each block has a marker section for recognizing the block, a data dot pattern section which is modulated to be structurally discriminated from the marker section and to represent modulated information, and a block header section as a non-modulation area which contains block address data. The block header section stores restoration parameter data necessary to restore the modulated information, thereby enabling the dot code to be variously modulated.