Granted Patent
Utility
US 6,804,296 · App. 09/991,988
METHOD FOR PROTECTION OF DATA REPRODUCTION ACCORDING TO MEDIUM PROTECTION DATA, POSITION INFORMATION, FIRST AND SECOND APPARATUS PROTECTION DATA AND A FILM CLASSIFICATION SYSTEM TO DETERMINE WHETHER MAIN DATA AT SPECIFIED POSITIONS ARE REPRODUCED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL, AND DATA MEDIUM THEREFOR
Inventor:
Takayuki Sugahara
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Nov 26, 2001
Inventor
Takayuki Sugahara
Assignee (at issue)
Victor Company of Japan, Ltd.
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.