Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812866 | Data decompressor utilizing sequentially coupled logic elements | — | 2004-11-02 |
| 6788226 | Data compressor with string code reassignment utilizing switched input coincidence elements | — | 2004-09-07 |
| 6756923 | Data compressor utilizing switched input coincidence elements arranged in virtual levels | — | 2004-06-29 |
| 6724330 | Prefix table implemented data compression method and apparatus utilizing string code reassignment | — | 2004-04-20 |
| 6674374 | Data compressor utilizing switched input coincidence elements | — | 2004-01-06 |
| 6653950 | Data compression method and apparatus utilizing cascaded subdictionaries | — | 2003-11-25 |
| 6653949 | Data compression apparatus and method utilizing tandem coupled matrices | — | 2003-11-25 |
| 6650259 | Character table implemented data decompression method and apparatus | — | 2003-11-18 |
| 6628211 | Prefix table implemented data compression method and apparatus | — | 2003-09-30 |
| 6614368 | Data compression method and apparatus utilizing cascaded character tables | — | 2003-09-02 |
| 6608570 | Matrix implemented data compression apparatus and method | — | 2003-08-19 |
| 6570511 | Data compression method and apparatus implemented with limited length character tables and compact string code utilization | — | 2003-05-27 |
| 6466144 | Data decompressor for use with a data compressor implemented with limited length character tables and compact string codes | — | 2002-10-15 |
| 6426711 | Character table implemented data compression method and apparatus | — | 2002-07-30 |
| 6400286 | Data compression method and apparatus implemented with limited length character tables | — | 2002-06-04 |
| 6392568 | Data compression and decompression method and apparatus with embedded filtering of dynamically variable infrequently encountered strings | — | 2002-05-21 |
| 6359548 | Data compression and decompression method and apparatus with embedded filtering of infrequently encountered strings | — | 2002-03-19 |
| 6307488 | LZW data compression and decompression apparatus and method using grouped data characters to reduce dictionary accesses | — | 2001-10-23 |
| 6268811 | Data compression method and apparatus with embedded run-length encoding | — | 2001-07-31 |
| 6188333 | LZW data compression apparatus and method using look-ahead mathematical run processing | — | 2001-02-13 |
| 6172624 | LZW data-compression apparatus and method using look-ahead mathematical run processing | — | 2001-01-09 |
| 6169499 | LZW data compression/decompression apparatus and method with embedded run-length encoding/decoding | — | 2001-01-02 |
| 6166665 | Data compression method and apparatus with embedded run-length encoding | — | 2000-12-26 |
| 6137428 | Data compression method and apparatus with embedded run-length encoding using mathematical run processing | — | 2000-10-24 |
| 6121901 | Data compression and decompression system with immediate dictionary updating interleaved with string search | Terry A. Welch | 2000-09-19 |