Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2006-06-06
2006-06-06
Le, Thien M. (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S472010
Reexamination Certificate
active
07055748
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.
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Iwaguchi Isao
Kaku Takashi
Miyazawa Hideo
Ohkawa Masanori
Watanabe Mitsuo
Fujitsu Frontech Limited
Fujitsu Limited
Le Thien M.
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