Resources Contact Us Home
Method and apparatus for expanding the address space of computers

Image Number 3 for United States Patent #4779191.

An address space, referred to herein as Moby space, may be defined having an address range greatly exceeding the direct addressing range of a particular computer, whereby each address in Moby space may be unique. Ranges of Moby space are swapped into and out of local memory space of the computer in question by processes referred to as reconciliation and dereconciliation. These processes are accomplished by maintaining in the computer, data structures which associate, typically on a per page or per section (multiple page) basis, each local page or section with its current Moby page or section. In addition to this address association and conversion, information being swapped must be scanned to separate the pointers from data and to appropriately convert pointers, but not data, as required during the swap. Achievement of aspects of the reconciliation and dereconciliation in separate hardware, particularly the maintenance of a running count of pointers to each page or section in local memory to identify which pages or sections may safely be swapped out, relieves the main processor of much of the overhead associated with these processes.

  Recently Added Patents
System for the secure management of digitally controlled locks, operating by means of crypto acoustic credentials
Method and apparatus for internet on-line insurance policy service
Products for animal use including humans having a certificate verifying at least one of efficacy or safety, and methods of providing such certificates
Self-correcting amplifier system
Method and system of a sensor interface having dynamic automatic gain control
Motion-compensated prediction of inter-layer residuals
Intelligent sensor network
  Randomly Featured Patents
Infant carrier
Workpiece blanking apparatus
Package stacking through rotation
Semiconductor laser device and fabricating method therefor
Grinding method for wafer
Catalysts for heterogeneous synthesis
Sorting and directing plant for lollipops
Twisted wire brush
Protective luggage tote bag and method
Large aperture, medium telephoto lens system