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. 12, 1976
Filed:
May. 30, 1975
Yoshiki Kobayashi, Hitachi, JA;
Tadaaki Bandoh, Hitachi, JA;
Jushi Ide, Hitachi, JA;
Toshiro Kamiuchi, Kodaira, JA;
Hitachi, Ltd., , JA;
Abstract
In a multi-computer system having input/output devices for common use, protection is made for the devices upon transferring of the input/output data by comparing a device identifying number or address signal and a number signal identifying a central processor unit which demands the transfer of data, thereby to determine on the basis of the result of the comparison whether the data transfer between the device and the central processor unit is allowable. When the transfer is not admitted, the input/output operation of the device is inhibited.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile