Ajay Luthra
181Patents
24h-index
57Co-inventors
93Inventor score
Filing activity: Aug 5, 1983 → Jun 4, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5991447A | Prediction and coding of bi-directionally predicted video object planes for interlaced digital video | Electricity | 310 | Expired |
| US6057884A | Temporal and spatial scaleable coding for video object planes | Electricity | 296 | Expired |
| US6005980A | Motion estimation and compensation of video object planes for interlaced digital video | Electricity | 236 | Expired |
| US6980596B2 | Macroblock level adaptive frame/field coding for digital video content | Electricity | 215 | Expired |
| US6167084A | Dynamic bit allocation for statistical multiplexing of compressed and uncompressed digital video signals | Electricity | 203 | Expired |
| US5974184A | Intra-macroblock DC and AC coefficient prediction for interlaced digital video | Electricity | 193 | Expired |
| US6026195A | Motion estimation and compensation of video object planes for interlaced digital video | Electricity | 188 | Expired |
| US6259741A | Method of architecture for converting MPEG-2 4:2:2-profile bitstreams into main-profile bitstreams | Electricity | 125 | Expired |
| US6434197B1 | Multi-functional transcoder for compressed bit streams | Electricity | 117 | Expired |
| US6441754B1 | Apparatus and methods for transcoder-based adaptive quantization | Electricity | 112 | Expired |
| US6570922B1 | Rate control for an MPEG transcoder without a priori knowledge of picture type | Electricity | 101 | Expired |
| US5228098A | Adaptive spatio-temporal compression/decompression of video image signals | Electricity | 95 | Expired |
| USRE38563E1 | Prediction and coding of bi-directionally predicted video object planes for interlaced digital video | General | 86 | Expired |
| US4604697A | Body imaging using vectorial addition of acoustic reflection to achieve effect of scanning beam continuously focused in range | Physics | 81 | Expired |
| US6580754B1 | Video compression for multicast environments using spatial scalability and simulcast coding | Electricity | 76 | Expired |
| US6096798A | Non-thrombogenic and anti-thrombogenic polymers | Chemistry; Metallurgy | 55 | Expired |
| US6406687B1 | Non-thrombogenic and anti-thrombogenic polymers | Chemistry; Metallurgy | 43 | Expired |
| US5274372A | Sampling rate conversion using polyphase filters with interpolation | Electricity | 43 | Expired |
| US6987888B2 | Frequency coefficient scanning paths for coding digital video content | Electricity | 38 | Expired |
| US6287707A | Biocompatible lubricious hydrophilic materials for medical devices | Emerging Cross-Sectional Technologies | 35 | Expired |
| US7177475B2 | Frequency coefficient scanning paths for coding digital video content | Electricity | 35 | Active |
| US6925501B2 | Multi-rate transcoder for digital streams | Electricity | 31 | Expired |
| US6847656B1 | Statistical remultiplexing with bandwidth allocation among different transcoding channels | Electricity | 28 | Expired |
| US9420023B2 | Managing adaptive streaming of data via a communication connection | Electricity | 28 | Active |
| US5200749A | Format converter architecture | Electricity | 24 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.