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:
Feb. 08, 1983
Filed:
Aug. 20, 1980
Rodney J Means, Tucson, AZ (US);
Galen P Plunkett, Jr,, Burke, VA (US);
Charles A Dennis, Warrenton, VA (US);
John L Moon, Washington, DC (US);
IBM Corporation, Armonk, NY (US);
Abstract
A distributed data processing system is disclosed which has truly distributed control. A plurality of bus interface units (BIU) are interconnected by the distributed system data bus (DSDB) which includes a clock line, a serial command line (CMD), a serial bus allocation line (BAL) and a two byte wide data bus. A central clock connected to the clock line which defines the message frame timing, is the only centralized 'control' element in the system. Each BIU may in turn be connected to either one or several data processing units, an I/O port, or a bridge connecting to still another similar bus network.