The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 29, 1990

Filed:

Sep. 24, 1987
Applicant:
Inventor:

Shigehiro Kajihara, Tokyo, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364518 ; 364521 ; 340727 ; 382 46 ;
Abstract

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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