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Patent Agency Ranking
公开(公告)号：DE3484736D1
公开(公告)日：1991-07-25
申请号：DE3484736
申请日：1984-12-11
Applicant: IBM
Abstract: Method for rotating an image by 90 degrees includes the steps of: storing the image in a raster format arranged in r rows by c columns, image information in each row being stored in a number of bytes, each byte having b bits, there being c/b bytes in each row of the raster format; moving a block of the image into a temporary storage, there being n rows by m columns in the block; separating each image block into groups of bytes of rotatable size; determining for each group if all bits are the same value; rotating each group that does not have all bits the same value; storing each rotated group in an output area of the raster storage; repeating the above steps for all remaining blocks of the image.
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公开(公告)号：DE69227553D1
公开(公告)日：1998-12-17
申请号：DE69227553
申请日：1992-08-13
Applicant: IBM
Inventor： ANDERSON KAREN LOUISE , FINLAY IAN RICHARD , MITCHELL JOAN LAVERNE , THORNTON DAVEY SPENCER
Abstract: Improved apparatus and method for encoding and decoding information is disclosed herein. The invention uses the same marker segment information to engage an encoder or a decoder. The technique eliminates many of the complexities associated with building parameter lists, and generating various types of marker segments in a form compatible with both the decode and encode processing.
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公开(公告)号：DE3877374T2
公开(公告)日：1993-07-15
申请号：DE3877374
申请日：1988-02-17
Applicant: IBM
Inventor： ANDERSON KAREN LOUISE , MITCHELL JOAN LAVERNE
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公开(公告)号：DE3483521D1
公开(公告)日：1990-12-06
申请号：DE3483521
申请日：1984-12-11
Applicant: IBM
Inventor： ANDERSON KAREN LOUISE , MITCHELL JOAN LA VERNE , GOERTZEL GERALD NMN
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