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:
Mar. 12, 1991
Filed:
Jan. 25, 1988
Mineo Akashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A data input circuit provided in a data processing equipment is disclosed. The input circuit includes a timing circuit generating a latch pulse in asynchronism with a read request signal generated by a CPU and a latch circuit latching input data in response to the latch pulse. The data latched in the latch circuit is transferred to a data bus in response to the read request signal. The input circuit further includes circuitry responsive to an access by the CPU for delaying the generation of the latch pulse such that the latch pulse is generated after the CPU stops to generate the read request signal. The latch circuit is thereby prevented from latching the input data while the read request signal is generated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile