Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Reexamination Certificate
2005-07-12
2005-07-12
Lee, Cheukfan (Department: 2622)
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
C358S408000, C358S496000, C358S497000, C358S498000, C358S474000
Reexamination Certificate
active
06917451
ABSTRACT:
An image reading apparatus includes a light transmitting member opposed to an original, a reading device for reading the original image through the light transmitting member, and a standard portion which is read by the reading device to perform shading compensation, wherein the standard portion is provided on the opposite side of the original with respect to the light transmitting member.
REFERENCES:
patent: 4760609 (1988-07-01), Tamagaki
patent: 4907097 (1990-03-01), Sobue
patent: 6400472 (2002-06-01), Yoshimizu
patent: 05022515 (1993-01-01), None
Fukatsu Masayoshi
Hayakawa Yasuyoshi
Waragai Tsuyoshi
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Lee Cheukfan
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