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:
Jul. 18, 2006
Filed:
Dec. 31, 2003
Hideo Miyazawa, Tokyo, JP;
Isao Iwaguchi, Tokyo, JP;
Mitsuo Watanabe, Tokyo, JP;
Kozo Yamazaki, Tokyo, JP;
Masanori Ohkawa, Tokyo, JP;
Hideo Miyazawa, Tokyo, JP;
Isao Iwaguchi, Tokyo, JP;
Mitsuo Watanabe, Tokyo, JP;
Kozo Yamazaki, Tokyo, JP;
Masanori Ohkawa, Tokyo, JP;
Fujitsu Limited, Kawasaki, JP;
Fujitsu Frontech Limited, Tokyo, JP;
Abstract
An extractor extracts a part that is apparently a bar-code signal from a signal that is subjected to opto-electric conversion. A narrow-band differential processor forms a waveform of an edge by differentiating by using a module frequency. The module point extractor extracts the module point from the waveform. The maximum likelihood judgment processorperforms ternarizing based on a maximum likelihood method by using broader information.