Image processing using a RAM and repeat read-modify-write operat

Details Image processing using a RAM and repeat read-modify-write operat Image processing using a RAM and repeat read-modify-write operat

1990-06-25

1993-06-22

Shaw, Dale M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

395143, 395162, 340799, G06F 1520, G09G 102

Patent

active

052222144

ABSTRACT:
An image processing system adaptable to pattern recognition that can serve any image width using a minimum of additional hardware by constructing a line buffer using a RAM and filling the RAM with image data while repeating the RMW (Read-Modify-Write) operation. To increase the processing speed, data packing of the line buffer (RAM) is performed on a multiple-bit basis rather than a bit-by-bit basis, that is, the number of bits written into the line buffer by one RMW operation is increased, for example, to 2, 4, or 8, so that the processing speed can be increased accordingly. An appropriate mask processing system is disclosed for processing the data so packed in the line buffer.

REFERENCES:
patent: 4779223 (1988-10-01), Asai et al.
patent: 4827249 (1989-05-01), Chauvel et al.

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