| 8144868 |
Encryption/decryption of program data but not PSI data |
Raymond C. Hauge, Richard Lewis |
2012-03-27 |
| 7936870 |
Rotation of keys during encryption/decryption |
Raymond C. Hauge, Richard Lewis |
2011-05-03 |
| 6239848 |
HDTV receiver having fast digital IF AGC and analog RF AGC |
Victor G. Mycynek |
2001-05-29 |
| 5978424 |
Frame identification system |
— |
1999-11-02 |
| 5841820 |
Data comparison AGC system for VSB receiver |
Gopalan Krishnamurthy |
1998-11-24 |
| 5828404 |
VSB mode detection system with comb filter |
Gopalan Krishnamurthy |
1998-10-27 |
| 5778028 |
DC removal circuit for digital signal |
— |
1998-07-07 |
| 5764309 |
Sync compensated AGC system for VSB receiver |
Gopalan Krishnamurthy |
1998-06-09 |
| 5598220 |
Digital signal with multilevel symbols and sync recognition |
Richard W. Citta, Gary J. Sgrignoli |
1997-01-28 |
| 5534938 |
Digital TV system using segment and field sync signals |
Richard W. Citta, Gary J. Sgrignoli |
1996-07-09 |
| 5475714 |
DC removal circuit for digital signal |
— |
1995-12-12 |
| 5260793 |
Receiver post coder selection circuit |
Richard W. Citta, Gary J. Sgrignoli |
1993-11-09 |
| 4688246 |
CATV scrambling system with compressed digital audio in synchronizing signal intervals |
Carl G. Eilers, Ronald Lee |
1987-08-18 |
| 4631587 |
Field responsive vertical pulse generator |
— |
1986-12-23 |
| 4581641 |
Video noise detector |
— |
1986-04-08 |
| 4535353 |
Vertical reference signal identification system |
— |
1985-08-13 |
| 4388639 |
Color control circuit for teletext-type decoder |
Charles Cox |
1983-06-14 |