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.
Patent No.:
Date of Patent:
Oct. 01, 1991
Filed:
Aug. 26, 1987
Applicant:
Inventor:
Yasuo Masaki, Kitakatsuragi, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364900 ; 3649314 ; 36493141 ; 36493144 ; 3649381 ; 3649383 ; 3649332 ; 3649424 ; 3649466 ; 3649491 ; 3649502 ; 3649503 ;
Abstract
A microprogram loaded in a microprogram memory by a host CPU is read out by a microprogram read control circuit in a vacant period existing in each cycle of operation of a hardware unit, whereby the microprogram is transmitted to each circuit of the hardware unit through a microprogram read-only bus. Each circuit of the hardware unit comprises a decoder and operation thereof is controlled based on a microinstruction decoded by the decoder.