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:
Jun. 06, 2006
Filed:
Feb. 28, 2005
Hideo Miyazawa, Tokyo, JP;
Isao Iwaguchi, Tokyo, JP;
Kozo Yamazaki, Tokyo, JP;
Masanori Ohkawa, Tokyo, JP;
Mitsuo Watanabe, Tokyo, JP;
Takashi Kaku, Tama, JP;
Hideo Miyazawa, Tokyo, JP;
Isao Iwaguchi, Tokyo, JP;
Kozo Yamazaki, Tokyo, JP;
Masanori Ohkawa, Tokyo, JP;
Mitsuo Watanabe, Tokyo, JP;
Takashi Kaku, Tama, JP;
Fujitsu Limited, Kawasaki, JP;
Fujitsu Frontech Limited, Tokyo, JP;
Abstract
A signal fetching unit fetches a signal that includes binarized information disposed with a predetermined information length, from a barcode. A module-frequency extracting unit extracts a module frequency equivalent to a basic unit length in the binarized information from the signal. A frequency shifting unit shifts a frequency to 0 Hz based on the module frequency for the signal. A low pass filter passes a low frequency component included in an output signal from the frequency shifting unit. A module-point extracting unit extracts a module point synchronized with the signal and that has the module frequency, based on the module frequency extracted and an output signal of the low pass filter. A demodulating unit demodulates a character of the barcode based on the module point extracted.