Inventor
GAMMIE KEITH
CA8 patents
⚠️ This page may combine multiple inventors who share the name “GAMMIE KEITH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCIENTIFIC ATLANTA
5 patentsUS5341425AAug 23, 1994
Methods and apparatus for uniquely encrypting data at a plurality of data transmission sites for transmission to a reception site
SCIENTIFIC ATLANTA272 citations98
US5381481AJan 10, 1995
Method and apparatus for uniquely encrypting a plurality of services at a transmission site
SCIENTIFIC ATLANTA209 citations97
US5270809ADec 14, 1993
Data return for a television transmission system
SCIENTIFIC ATLANTA227 citations97
US5200823AApr 6, 1993
Virtual channels for a multiplexed analog component (mac) television system
SCIENTIFIC ATLANTA200 citations97
US5237610AAug 17, 1993
Independent external security module for a digitally upgradeable television signal decoder
SCIENTIFIC ATLANTA464 citations95