Issued Patents All Time
Showing 51–75 of 147 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760078 | Digital filtering of DTV I-F signal to avoid low-end boost of the baseband signal resulting from in-phase synchrodyne | — | 2004-07-06 |
| RE38456 | Decimation of baseband DTV signals prior to channel equalization in digital television signal receivers | Chandrakant B. Patel | 2004-03-09 |
| 6687313 | Digital television receiver converting vestigial-sideband signals to double-sideband AM signals before demodulation | — | 2004-02-03 |
| 6667760 | Receiver for digital television signals having carriers near upper frequency boundaries of TV broadcasting channels | — | 2003-12-23 |
| 6643334 | Bandpass tracker for DTV receiver, with VSB I-F signal filtered for more symmetrical AFPC Loop response | — | 2003-11-04 |
| 6621527 | Digital receiver with match filter responsive to field synchronization code in the final I-F signal envelope | Jung-wan Ko | 2003-09-16 |
| 6608869 | Dual-carrier heterodyne for separating orthogonal components of complex amplitude-modulation signals | — | 2003-08-19 |
| 6606129 | Digital filtering of DTV I-F signal to avoid low-end boost of the baseband signal resulting from in-phase synchrodyne | — | 2003-08-12 |
| 6545728 | Digital television receivers that digitize final I-F signals resulting from triple-conversion | Chandrakant B. Patel | 2003-04-08 |
| 6535553 | Passband equalizers with filter coefficients calculated from modulated carrier signals | Chandrakant B. Patel | 2003-03-18 |
| 6519416 | Magnet recording/reproducing apparatus with video camera, suited for photorecording without attending camera operator | Young-Gyo Choi, Bong-Rae Park | 2003-02-11 |
| 6519304 | Circuitry operative on selected symbol slicing results for synchronizing data fields in a digital television receiver | — | 2003-02-11 |
| 6519295 | VSB DTV receiver with real-only digital synchrodyne to recover baseband symbol code | — | 2003-02-11 |
| 6512555 | Radio receiver for vestigal-sideband amplitude-modulation digital television signals | Chandrakant B. Patel | 2003-01-28 |
| 6507626 | Bandpass phase tracker that automatically samples at prescribed carrier phases when digitizing VSB I-F signal | — | 2003-01-14 |
| 6496230 | Digital TV signal receiver with direct conversion from UHF I-F to Low-Band I-F before digital demodulation | Chandrakant B. Patel | 2002-12-17 |
| 6496229 | TV receiver using read-only memory shared during VSB and QAM reception for synchrodyning I-F signal to baseband | — | 2002-12-17 |
| 6480236 | Envelope detection of PN sequences accompanying VSB signal to control operation of QAM/VSB DTV receiver | — | 2002-11-12 |
| 6480233 | NTSC co-channel interference detectors responsive to received Q-channel signals in digital TV signal receivers | — | 2002-11-12 |
| 6449325 | Circuitry operative on selected symbol slicing results for synchronizing data fields in a digital television receiver | — | 2002-09-10 |
| 6445425 | Automatic fine tuning of receiver for digital television signals | — | 2002-09-03 |
| 6441843 | Suppression of effects of co-channel NTSC interference artifacts upon digital TV receiver adaptive equalizer | — | 2002-08-27 |
| 6426780 | DTV receiver with low-band final I-F signal filtered for suppressing co-channel interfering NTSC audio carrier | Chandrakant B. Patel | 2002-07-30 |
| 6421403 | Baseband equalization of quadrature-phase as well as in-phase synchrodyne results in digital radio receivers | — | 2002-07-16 |
| 6400393 | DTV receiver with filter in I-F circuitry to suppress FM sound carrier of NTSC Co-channel interfering signal | — | 2002-06-04 |