M66256 Mitsubishi, M66256 Datasheet - Page 11

• Manufacturer Part Number: M66256
• Description: 5120 x 8-BIT LINE MEMORY (FIFO)
• Manufacturer: Mitsubishi

APPLICATION EXAMPLE
Laplacian Filter Circuit for Correction of Resolution in the Secondary Scanning Direction.
image data
Line (n+1)
B
Primary scanning
direction
A
N
B
D
D
D
D
M66256
M66256
0
9
0
9
1-line
1-line
delay
delay
Q
Q
Q
Q
0
9
0
9
image data
Line (n–1)
A
Line (n–1)
Line n
Line (n+1)
2
Line n image data
N' = N+K { (N–A)+(N–B)}
= N+K { 2N–(A+B)}
K : Laplacean coefficient
N
5120
K
MITSUBISHI DIGITAL ASSP
8-BIT LINE MEMORY (FIFO)
M66256FP
Corrected
image data
11