Issued Patents All Time
Showing 126–149 of 149 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829308 | Satellite communication system utilizing low density parity check codes | Mustafa Eroz, Feng-Wen Sun, Dan Fraley | 2004-12-07 |
| 6741581 | System and method for transmitting data in frame format using an R-Rake retransmission technique with blind identification of data frames | Feng-Wen Sun, Khalid Karimullah | 2004-05-25 |
| 6539050 | Method for transmitting wideband signals via a communication system adapted for narrow-band signal transmission | Khalid Karimullah, Feng-Wen Sun, Kamran Etemad | 2003-03-25 |
| 6510147 | Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals | Feng-Wen Sun, Khalid Karimullah | 2003-01-21 |
| 6396822 | Method and apparatus for encoding data for transmission in a communication system | Feng-Wen Sun, Khalid Karimullah | 2002-05-28 |
| 6351240 | Circularly polarized reflect array using 2-bit phase shifter having initial phase perturbation | Khalid Karimullah, Jian Song, Stanley Kay | 2002-02-26 |
| 5678180 | Communication system and method providing dispatch and cellular interconnect communications | Ashok Mehta, Jim Hobza, Stanley Kay | 1997-10-14 |
| 5603083 | Microcell base station antenna pattern for dense urban areas | — | 1997-02-11 |
| 5337085 | Coding technique for high definition television signals | Ashok Rao, Sanjai Bhargava | 1994-08-09 |
| 5297172 | Method and apparatus for clock recovery for digitally implemented modem | Ajit Shenoy, Michael Eng | 1994-03-22 |
| 4970592 | Horizontal synchronization, clock synchronization, D.C. restoration and gain control scheme for an analog TV system | Neal Becker, Ajit Shenoy | 1990-11-13 |
| 4967272 | Bandwidth reduction and multiplexing of multiple component TV signals | Yih-Sien Kao | 1990-10-30 |
| RE33189 | Security system for SSTV encryption | Russell Fang | 1990-03-27 |
| 4852023 | Nonlinear random sequence generators | Farhad Hemmati | 1989-07-25 |
| 4829377 | Horizontal synchronization, clock synchronization, D. C. restoration and gain control scheme for an analog TV system | Neal Becker, Ajit Shenoy | 1989-05-09 |
| 4815130 | Stream cipher system with feedback | Neal Becker | 1989-03-21 |
| 4797918 | Subscription control for television programming | Neal Becker | 1989-01-10 |
| 4620224 | Video scrambling technique for multiplexed analog component formats | Mark D. Redman | 1986-10-28 |
| 4484027 | Security system for SSTV encryption | Russell Fang | 1984-11-20 |
| 4397022 | Weighted erasure codec for the (24, 12) extended Golay code | Ming-I. Weng | 1983-08-02 |
| 4365110 | Multiple-destinational cryptosystem for broadcast networks | Shyue-Ching Lu | 1982-12-21 |
| 4306111 | Simple and effective public-key cryptosystem | Shyue-Ching Lu | 1981-12-15 |
| 4301327 | Reduction of message redundancy by multiple substitution: a message preprocessing scheme for secure communications | Shyue-Ching Lu | 1981-11-17 |
| 4208739 | Integrated encryption and channel coding technique | Shyue-Ching Lu, Russell Fang | 1980-06-17 |