Issued Patents All Time
Showing 76–100 of 147 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6384858 | Suppression of co-channel NTSC interference artifacts when extracting training signal for a DTV receiver equalizer | — | 2002-05-07 |
| 6380969 | DTV receiver symbol decoding circuitry with co-channel NTSC artifacts suppression filter before data slicer | — | 2002-04-30 |
| 6377312 | Adaptive fractionally spaced equalizer for received radio transmissions with digital content, such as DTV signals | Chandrakant B. Patel | 2002-04-23 |
| 6351290 | Television receiver with separate I-F amplifiers for VSB and QAM digital TV signals that are digitally synchrodyned | — | 2002-02-26 |
| 6333767 | Radio receivers for receiving both VSB and QAM digital television signals with carriers offset by 2.69 MHz | Chandrakant B. Patel | 2001-12-25 |
| 6313885 | DTV receiver with baseband equalization filters for QAM signal and for VSB signal which employ common elements | Chandrakant B. Patel | 2001-11-06 |
| 6313882 | TV reception apparatus using same ghost-cancellation circuitry for receiving different types of TV signals | Chandrakant B. Patel | 2001-11-06 |
| 6307598 | Plural-conversion TV receiver converting 1st I-F to 2nd I-F using oscillations of fixed frequency above 1st I-F. | — | 2001-10-23 |
| 6307595 | NTSC/DTV reception apparatus automatically conditioned for NTSC signal reception responsive to 4.5 MHz intercarrier | — | 2001-10-23 |
| 6301312 | Bandpass phase tracker with hilbert transformation before analog-to-digital conversion | — | 2001-10-09 |
| 6300984 | Ghost-cancellation reference signals using spaced PN sequences | Chandrakant B. Patel | 2001-10-09 |
| 6246827 | Deemphasis and subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal | Christopher H. Strolle, Werner F. Wedam, Raymond Schnitzler, Hermann J. Weckenbrock, Jung-wan Ko +1 more | 2001-06-12 |
| 6211924 | Decimation of baseband DTV signal prior to channel equalization in digital television signal receivers | Chandrakant B. Patel | 2001-04-03 |
| 6201564 | Method of operating the channel equalizer in a receiver for DTV signals subject to co-channel NTSC interference | — | 2001-03-13 |
| 6188441 | Detection of PN sequences accompanying VSB signal to control operating mode of QAM/VSB DTV signal receiver | — | 2001-02-13 |
| 6184942 | Adaptively receiving digital television signals transmitted in various formats | Chandrakant B. Patel | 2001-02-06 |
| 6184921 | Method for transmitting VSB digital TV with carrier frequency near co-channel NTSC audio carrier frequency | — | 2001-02-06 |
| 6137545 | Reception mode control in radio receivers for receiving both VSB and QAM digital television signals | Chandrakant B. Patel | 2000-10-24 |
| 6124898 | Digital television receiver with equalization performed on digital intermediate-frequency signals | Chandrakant B. Patel | 2000-09-26 |
| 6118495 | Training signal in plural PN sequences near beginnings of data segments of DTV signal or scan lines of NTSC signal | Chandrakant B. Patel | 2000-09-12 |
| 6108049 | Circuitry operative on symbol decoding results for synchronizing data fields in a digital television receiver | — | 2000-08-22 |
| 6104442 | Radio receiver for receiving both VSB and QAM digital HDTV signals | Chandrakant B. Patel | 2000-08-15 |
| 6104763 | Synchrodyning of VSB and QAM final I-F signals supplied by separate converters in a QAM/VSB digital TV receiver | — | 2000-08-15 |
| 6081301 | DTV circuitry for measuring multipath distortion based on ghosting of data segment synchronizing signals | — | 2000-06-27 |
| 6061096 | Digital-and-analog-TV-signal receivers, each with single first detector and shared high-band I-F amplification | — | 2000-05-09 |