Kabushiki Kaisha Toshiba

Shigehiro Kajihara

Fumitaka Sato

Masayoshi Murayama

For each of multiple segments acquired by dividing a binary image by a predetermined under of lines, image data of a reference line corresponding to a start line of that segment is stored in an intermediate start table in association with data indicating a head coding position of the start line in code data acquired when the binary image is compressed. Based on the stored data, partial image extraction is executed.

System and method of extracting binary image data

A rotation circuit includes a first holding section for sequentially latching n words input in units of words, in accordance with a first control instruction, each word consisting of n-bit data. The n words held in the first holding section are input to and latched by a second holding section. One bit of data is selected from each word latched by the second holding section, in accordance with a second control instruction, while the next one word is input to the first holding section, and a rotated word constituted by n bit data selected from n words is output from a selector section. The first and second control instructions are generated from a controller, in accordance with an input rotation control instruction, and are respectively supplied to the first holding section and the selector section.

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Tokyo, Japan

Shigehiro Kajihara