Optical information detecting method and optical information...

Details Optical information detecting method and optical information... Optical information detecting method and optical information...

2006-07-13

2009-08-25

Thompson, Timothy J (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C369S275400

Reexamination Certificate

active

07580173

ABSTRACT:
There is provided an optical information detecting method comprising: detecting an image of a source data page containing a frame mask by the use of an optical detection region within respective 1:N (where N is greater than 1) excessive detection pixels; monitoring a light intensity of the detected image and determining a matching state of the frame mask; determining an arrangement pattern of valid detection pixels of the detection pixels in accordance with the determined matching state of the frame mask and detecting sampling detection pixels; and sampling an image of the sampling detection pixels from the detected image and reproducing the image of the source data page. There is also an optical information detector used to put the optical information detecting method into practice. Accordingly, it is possible to detect optical information with high reliability without performing complex calculation by the use of a 1:N over-sampling method.

REFERENCES:
patent: 2007/0206485 (2007-09-01), Yoon et al.

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