Image rotating apparatus

Details Image rotating apparatus Image rotating apparatus

1992-10-14

1995-01-24

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358450, 358453, 382 46, H04N 140

Patent

active

053846451

ABSTRACT:
An image rotating device includes first and second buffer memories to which image data, sequentially fed, are alternately written every m
lines with respect to bit width n per pixel of the image data and bit width m per word of a page memory. An image data reader alternately reads m
lines of image data written to the first and second buffer memories from an address designated in accordance with a set rotational angle with one word of the page memory at a time. An image data writer sequentially writes the image data of one word of the page memory to the address of the page memory designed in accordance with a set rotational angle. The image data are sequentially stored in the page memory with the data being rotated in real time.

REFERENCES:
patent: 4729107 (1988-03-01), Hasegawa et al.
patent: 4912771 (1990-03-01), Komine et al.
patent: 4929085 (1990-05-01), Kajihara
patent: 5029018 (1991-07-01), Noso et al.
patent: 5038218 (1991-08-01), Matsumoto
patent: 5050225 (1991-09-01), Itoh
patent: 5063526 (1991-11-01), Hagawa et al.
patent: 5239388 (1993-08-01), Matsumoto

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