Yi Liu
31Patents
14h-index
20Co-inventors
77Inventor score
Filing activity: Apr 18, 1995 → Dec 13, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6002801A | Method and apparatus for improved video decompression by selection of IDCT method based on image characteristics | Electricity | 97 | Expired |
| US5724446A | Video decoder apparatus using non-reference frame as an additional prediction source and method therefor | Electricity | 87 | Expired |
| US5809173A | Method and apparatus for improved video decompression using previous frame DCT coefficients | Electricity | 74 | Expired |
| US5903313A | Method and apparatus for adaptively performing motion compensation in a video processing apparatus | Electricity | 53 | Expired |
| US7783773B2 | Glitch-free media streaming | Electricity | 50 | Active |
| US6823087B1 | Parallel edge filters in video codec | Physics | 46 | Expired |
| US5864637A | Method and apparatus for improved video decompression by selective reduction of spatial resolution | Electricity | 45 | Expired |
| US5872866A | Method and apparatus for improved video decompression by predetermination of IDCT results based on image characteristics | Electricity | 45 | Expired |
| US5982936A | Performance of video decompression by using block oriented data structures | Electricity | 44 | Expired |
| US6009203A | Method and apparatus for hybrid VLC bitstream decoding | Electricity | 29 | Expired |
| US5680482A | Method and apparatus for improved video decompression by adaptive selection of video input buffer parameters | Electricity | 21 | Expired |
| US5768536A | Generation of a secondary video bitstream from a compressed video bitstream to enhance playback performance | Electricity | 18 | Expired |
| US6075918A | Generation of an intermediate video bitstream from a compressed video bitstream to enhance playback performance | Electricity | 17 | Expired |
| US5784494A | Method and apparatus for prestoring dequantization information for DCT VLC decoding | Electricity | 15 | Expired |
| US6233595A | Fast multiplication of floating point values and integer powers of two | Physics | 10 | Expired |
| US6832232B1 | Dual-block inverse discrete cosine transform method | Physics | 9 | Expired |
| US5774600A | Method of pixel averaging in a video processing apparatus | Electricity | 8 | Expired |
| US6907438B1 | Two-dimensional inverse discrete cosine transform using SIMD instructions | Physics | 7 | Expired |
| US5953457A | Method and apparatus for improved video decompression by prescaling of pixel and error terms to merging | Electricity | 6 | Expired |
| US7142721B2 | Method of image compression | Physics | 4 | Expired |
| US8509449B2 | Key protector for a storage volume using multiple keys | Electricity | 3 | Active |
| US8374480B2 | Method and apparatus for video image data recording and playback | Electricity | 3 | Active |
| US7716404B2 | Pseudo-full duplex communication using a half duplex communication protocol | Electricity | 3 | Active |
| US8307290B2 | Remote control device and method | Physics | 2 | Active |
| US7429991B2 | Video card | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.