Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2006-03-07
2006-03-07
Fureman, Jared J. (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462250
Reexamination Certificate
active
07007847
ABSTRACT:
A signal obtained by optically scanning a bar code is subjected to differentiation to obtain differential data. Peak-to-peak distances are calculated from the differential data. When a peak-to-peak ΔTx distance is y times of a basic width, frequency f(x,y) will be, f(x,y)=y/ΔTx. A frequency map is prepared from the frequencies calculated. Transition routes in which one frequency each is selected from each of the peak-to-peak distances, are formed. A transition route for which an error in frequencies is the least is taken as the most suitable transition route. An average of the frequencies included in the transition route is taken as a frequency f0of the basic width.
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Iwaguchi Isao
Miyazawa Hideo
Ohkawa Masanori
Watanabe Mitsuo
Yamazaki Kozo
Armstrong Kratz Quintos Hanson & Brooks, LLP
Fujitsu Frontech Limited
Fujitsu Limited
Fureman Jared J.
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