Issued Patents All Time
Showing 201–219 of 219 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5926791 | Recursively splitting the low-frequency band with successively fewer filter taps in methods and apparatuses for sub-band encoding, decoding, and encoding and decoding | Masami Ogata, Tak Yen Tong | 1999-07-20 |
| 5907370 | Apparatus and method for reducing qauntization error in digital image signals | Yoichi Yagasaki | 1999-05-25 |
| 5835672 | Apparatus for coding and decoding a digital video signal having duplicate pictures and frames with fields originating from different film source frames | Yoichi Yagasaki | 1998-11-10 |
| 5808683 | Subband image coding and decoding | Tak Yen Tong, Masami Ogata | 1998-09-15 |
| 5786858 | Method of encoding image signal, apparatus for encoding image signal, method of decoding image signal, apparatus for decoding image signal, and image signal recording medium | Yoichi Yagasaki, Jun Yonemitsu | 1998-07-28 |
| 5777678 | Predictive sub-band video coding and decoding using motion compensation | Masami Ogata, Tak Yen Tong | 1998-07-07 |
| 5768469 | Apparatus for coding and decoding a digital video signal having duplicate pictures and frames with fields originating from different film source frames | Yoichi Yagasaki | 1998-06-16 |
| 5751359 | Method for quantizing compressed video signals | Yoichi Yagasaki | 1998-05-12 |
| 5748243 | Method for encoding and decoding motion picture as a function of its non-linear characteristic | — | 1998-05-05 |
| 5699474 | Method and apparatus for decoding MPEG-type data reproduced from a recording medium during a high-speed reproduction operation | Katsumi Tahara, Yoichi Yagasaki, Yasushi Fujinami, Jun Yonemitsu | 1997-12-16 |
| 5666461 | High efficiency encoding and decoding of picture signals and recording medium containing same | Katsuji Igarashi, Jun Yonemitsu, Yoichi Yagasaki, Yasushi Fujinami, Tomoyuki Sato +1 more | 1997-09-09 |
| 5642165 | Motion picture encoding method and apparatus | Katsumi Tahara, Tak Yen Tong | 1997-06-24 |
| 5602956 | Picture signal coding method, decoding method and picture signal recording medium | Yoichi Yagasaki, Jun Yonemitsu | 1997-02-11 |
| 5590139 | Method of recording a compressed motion picture signal in which effects of rounding errors resulting from inversely transforming transaction coefficients representing are mitigated | Yoichi Yagasaki, Tatsuya Sudo, Toru Okazaki | 1996-12-31 |
| 5543932 | Digital video signal recording apparatus and digital video signal reproducing apparatus | Ching-Fang Chang, Naofumi Yanagihara, Jun Yonemitsu, Katsumi Tahara, Yoichi Yagasaki | 1996-08-06 |
| 5504530 | Apparatus and method for coding and decoding image signals | Nobuhisa Obikane, Katsumi Tahara, Yoichi Yagasaki, Jun Yonemitsu | 1996-04-02 |
| 5485279 | Methods and systems for encoding and decoding picture signals and related picture-signal records | Jun Yonemitsu, Katsumi Tahara | 1996-01-16 |
| 5481553 | Methods and apparatus for preventing rounding errors when transform coefficients representing a motion picture signal are inversely transformed | Yoichi Yagasaki, Tatsuya Sudo, Toru Okazaki | 1996-01-02 |
| 5461420 | Apparatus for coding and decoding a digital video signal derived from a motion picture film source | Jun Yonemitsu, Yoichi Yagasaki | 1995-10-24 |