Inventor
LUCAS KEITH
CA21 patents
⚠️ This page may combine multiple inventors who share the name “LUCAS KEITH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCIENTIFIC ATLANTA
19 patentsUS5400401AMar 21, 1995
System and method for transmitting a plurality of digital services
SCIENTIFIC ATLANTA633 citations99
US4885775ADec 5, 1989
Information display scheme for subscribers of a subscription television system
SCIENTIFIC ATLANTA323 citations99
US4890321ADec 26, 1989
Communications format for a subscription television system permitting transmission of individual text messages to subscribers
SCIENTIFIC ATLANTA482 citations97
US4866770ASep 12, 1989
Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system
SCIENTIFIC ATLANTA208 citations97
US4829569AMay 9, 1989
Communication of individual messages to subscribers in a subscription television system
SCIENTIFIC ATLANTA512 citations97
US5237413AAug 17, 1993
Motion filter for digital television system
SCIENTIFIC ATLANTA74 citations96
US5231485AJul 27, 1993
Method and apparatus for transforming between fixed-rate vector quantized data and variable rate vector quantized data
SCIENTIFIC ATLANTA97 citations96
US4719642AJan 12, 1988
Error detection and concealment using predicted signal values
SCIENTIFIC ATLANTA70 citations96
US4642688AFeb 10, 1987
Method and apparatus for creating encrypted and decrypted television signals
SCIENTIFIC ATLANTA169 citations96
US5361098ANov 1, 1994
Methods and apparatus for generating a picture-in-picture digital television frame by inserting a mean-only frame into a full-size frame
SCIENTIFIC ATLANTA32 citations92
US5247348ASep 21, 1993
Method for selecting reproduction quality of transmitted vector quantized data
SCIENTIFIC ATLANTA21 citations92
US5235418AAug 10, 1993
Method and apparatus for low frequency removal in vector quantization
SCIENTIFIC ATLANTA23 citations92
US5204899AApr 20, 1993
Vector quantization method employing mirrored input vectors to search codebook
SCIENTIFIC ATLANTA26 citations92
US4989091AJan 29, 1991
Scan converter for a high definition television system
SCIENTIFIC ATLANTA25 citations92
US4652903AMar 24, 1987
Frequency generation for multiplexed analog component color television encoding and decoding
SCIENTIFIC ATLANTA37 citations92
US5553141ASep 3, 1996
Encryption and decryption (scrambling and unscrambling) of video signals
SCIENTIFIC ATLANTA38 citations90
US5053859AOct 1, 1991
High definition B-MAC television signal transmission system
SCIENTIFIC ATLANTA7 citations74
US4866519ASep 12, 1989
Method and apparatus for increasing the vertical definition of a transmitted television signal
SCIENTIFIC ATLANTA16 citations70
US4965661AOct 23, 1990
Method and apparatus for increasing the definiton of an NTSC video signal using an augmentation channel
SCIENTIFIC ATLANTA4 citations63