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. 11, 1994
Filed:
Dec. 21, 1993
Applicant:
Inventors:
Rolf B Hilgendorf, Boeblingen, DE;
Thomas Schlipf, Holzgerlingen, DE;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395325 ; 364240 ; 3642402 ; 3642813 ; 3642815 ; 364D / ;
Abstract
A method and an apparatus to avoid a deadlock in a computer system with several busses connected by a bus adapter. If units of different busses of the computer system simultaneously start operations for which more than one bus is needed, it may come to a deadlock. By introducing a BUS SUSPEND signal to one of the busses and adapting the bus-protocol to honor this signal at distinct time slots, deadlock situations are avoided.