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:
Apr. 18, 1995

Filed:

Dec. 16, 1993
Applicant:
Inventors:

Yoshiyuki Kato, Kanagawa, JP;

Daisuke Nagai, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395800 ; 364D / ; 364238 ; 3642386 ; 364239 ; 395250 ;
Abstract

An interface circuit which is connected between a peripheral device and a computer and which can conduct a data transfer at a higher speed. When a first digital data D.sub.1 is output from a peripheral device, the transfer of a memory bus enable request signal DRQ to a computer is halted by transfer control means, and the first digital data is output from the peripheral device in accordance with a false read control signal FIOR from an interface circuit, and held in hold means. When a second digital data is output from the peripheral device, DRQ is transferred to the computer, and 2N-bit data, i.e., N-bit second digital data D.sub.2 output from the peripheral device, and the N-bit first digital data D.sub.1 which is held are simultaneously transferred to the computer in accordance with a read control signal IOR from the computer.


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