M66256FP 查看數據表（PDF） - MITSUBISHI ELECTRIC
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M66256FP Datasheet PDF : 11 Pages
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MITSUBISHI 〈DIGITAL ASSP〉
M66256FP
5120 × 8-BIT LINE MEMORY (FIFO)
APPLICATION EXAMPLE
Laplacian Filter Circuit for Correction of Resolution in the Secondary Scanning Direction.
B
Line (n+1)
image data
M66256
D0 Q0
D9 Q9
1-line
delay
N
Line n image data
×2
×K
M66256
D0 Q0
D9 Q9
A
Line (n–1)
image data
1-line
delay
Corrected
image data
Primary scanning
direction
A
N
B
Line (n–1)
Line n
Line (n+1)
N' = N+K {(N–A)+(N–B)}
= N+K {2N–(A+B)}
K : Laplacean coefficient
11
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