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, 2011
Filed:
Mar. 18, 2008
Douglas Michael Boecker, Rochester, MN (US);
Stephan Otis Broyles, Austin, TX (US);
Hemlata Nellimarla, Austin, TX (US);
Alwood Patrick Williams, Iii, Otsego, MI (US);
Douglas Michael Boecker, Rochester, MN (US);
Stephan Otis Broyles, Austin, TX (US);
Hemlata Nellimarla, Austin, TX (US);
Alwood Patrick Williams, III, Otsego, MI (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mechanism is provided for locking an end device for the period of time that the device is needed, thus disabling access by any other application or process. Having the device locked, rather than the bus, allows other applications to use the bus to access other devices at the same time. This is achieved by providing a virtual bus arbitration, which arbitrates applications' use of the physical bus. The virtual bus arbitration algorithms allow bus operations from different applications to overlap on the physical bus as long as their target devices and associated bus locks are on different end devices.