m66280fp Renesas Electronics Corporation., m66280fp Datasheet - Page 12

• Manufacturer Part Number: m66280fp
• Description: 5120 ? 8-bit Line Memory
• Manufacturer: Renesas Electronics Corporation.

M66280FP
Application Example
Sub Scan Resolution Compensation Circuit with Laplacian Filter
REJ03F0253-0200 Rev.2.00 Sep 14, 2007
Page 12 of 13
image data
(n + 1) line
B
Main scan direction
A
N
B
M66280
M66280
D0
D7
D0
D7
to
to
1 line
delay
1 line
delay
Q0
Q7
Q0
Q7
to
to
(n − 1) line
image data
A
(n − 1) line
n line
(n + 1) line
× 2
n line image data
N
N' = N + K { (N − A) + (N − B) }
= N + K {2N − (A + B)}
K: Laplacian coefficient
× K
Compensated
image data