Granted Patent
Utility
US 6,647,486 · App. 10/154,110
Information processing apparatus for entertainment system utilizing DMA-controlled high-speed transfer and processing of routine data
Inventor:
Akio Ohba
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: May 22, 2002
Inventor
Akio Ohba
Assignee (at issue)
SONY COMPUTER ENTERTAINMENT INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.