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:
Sep. 24, 1985
Filed:
Sep. 09, 1982
Applicant:
Inventors:
Yasuyuki Kozima, Hitachi, JP;
Kunio Sato, Hitachi, JP;
Masaharu Tadauchi, Hitachi, JP;
Hiroshi Suehiro, Yokohama, JP;
Yasuo Inoue, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364900 ; 400121 ; 400124 ; 364518 ; 346 78 ; 101 9304 ;
Abstract
A control circuit is used for matrix drive recording. It includes a microprocessor, a RAM for storing data to be recorded therein, an address signal editing circuit for modifying the input addresses to the RAM, a shift register for converting the data from parallel to serial form and transferring it to a recording circuit, and a DMA controller for reading the data from the RAM and transferring it to the shift register.