Granted Patent
Utility
US 5,003,539 · App. 07/455,858
Apparatus and method for encoding and decoding attribute data into error checking symbols of main data
Inventors:
Sohei Takemoto, Leonard A. Pasdera
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Dec 15, 1989
Inventors
Sohei Takemoto
Leonard A. Pasdera
Assignee (at issue)
Ampex Corporation
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.