Wai-Man Lam
19Patents
12h-index
14Co-inventors
71Inventor score
Filing activity: Oct 26, 1994 → Nov 14, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6236727A | Apparatus, method and computer program product for protecting copyright data within a computer system | Physics | 219 | Expired |
| US7151832B1 | Dynamic encryption and decryption of a stream of data | Electricity | 159 | Expired |
| US5847762A | MPEG system which decompresses and then recompresses MPEG video data before storing said recompressed MPEG video data into memory | Electricity | 144 | Expired |
| US5825424A | MPEG system which decompresses and recompresses image data before storing image data in a memory and in accordance with a resolution of a display device | Electricity | 105 | Expired |
| US5818530A | MPEG compatible decoder including a dual stage data reduction network | Electricity | 85 | Expired |
| US5844608A | Picture element processor for a memory management system | Electricity | 76 | Expired |
| US5745183A | Image motion estimation system which derives candidate block from interpolated motion vectors | Electricity | 75 | Expired |
| US6256347A | Pixel block compression apparatus in an image processing system | Electricity | 52 | Expired |
| US6662329B1 | Processing errors in MPEG data as it is sent to a fixed storage device | Electricity | 50 | Expired |
| US5500689A | System for detecting a video signal image intensity gradient | Electricity | 27 | Expired |
| US7012963B2 | Positioning of images in a data stream | Electricity | 17 | Expired |
| US6853727B1 | File table copy protection for a storage device when storing streaming content | Electricity | 12 | Expired |
| US6621934B1 | Memory efficient compression apparatus in an image processing system | Electricity | 11 | Expired |
| US6801536B1 | Remultiplexing audio/video PES streams from an MPEG transport system | Electricity | 10 | Expired |
| US7020205B1 | Sending progressive video sequences suitable for MPEG and other data formats | Electricity | 10 | Expired |
| US6529551B1 | Data efficient quantization table for a digital video signal processor | Electricity | 8 | Expired |
| US6167086A | Overhead data processor in a memory efficient image processing system | Electricity | 5 | Expired |
| US6081300A | Apparatus and method for generating on-screen-display messages using stored bitstreams | Electricity | 4 | Expired |
| US6009171A | Apparatus, method and computer program product for protecting copyright data within a computer system | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.