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:
Jun. 15, 2010
Filed:
Feb. 07, 2006
Antonius Paulus Engbersen, Feusisberg, CH;
Julian Satran, Atlit, IL;
Edi Shmueli, Haifa, IL;
Thomas Basil Smith, Iii, Wilton, CT (US);
Antonius Paulus Engbersen, Feusisberg, CH;
Julian Satran, Atlit, IL;
Edi Shmueli, Haifa, IL;
Thomas Basil Smith, III, Wilton, CT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for unifying access to a physical memory by operations using virtual addresses of the same virtual address space are provided. The operations may be generated by at least one central processing unit (CPU operations) and/or by at least one IO device (IO operations). The system may include a bus arranged to transfer data and virtual addresses of the same virtual address space from the central processing unit (CPU) and the IO device to a unified memory management unit (UMMU), a unified memory management unit (UMMU) arranged to translate the virtual addresses to physical addresses, and to protect the physical memory from illegal access attempts of the CPU operations and the IO operations. The system may further include a memory controller arranged to manage access to the physical memory. The access is done by using physical addresses.