Issued Patents All Time
Showing 26–50 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664056 | Digital encoder with dynamic quantization bit allocation | — | 1997-09-02 |
| 5642111 | High efficiency encoding or decoding method and device | — | 1997-06-24 |
| 5621856 | Digital encoder with dynamic quantization bit allocation | — | 1997-04-15 |
| 5608713 | Bit allocation of digital audio signal blocks by non-linear processing | Yoshiaki Oikawa, Hiroshi Suzuki | 1997-03-04 |
| 5590108 | Encoding method and apparatus for bit compressing digital audio signals and recording medium having encoded audio signals recorded thereon by the encoding method | Makoto Mitsuno, Hiroshi Suzuki, Osamu Shimoyoshi | 1996-12-31 |
| 5583967 | Apparatus for compressing a digital input signal with signal spectrum-dependent and noise spectrum-dependent quantizing bit allocation | — | 1996-12-10 |
| 5563913 | High efficiency encoding device and a noise spectrum modifying device and method | Makoto Akune | 1996-10-08 |
| 5553193 | Bit allocation method and device for digital audio signals using aural characteristics and signal intensities | — | 1996-09-03 |
| 5548574 | Apparatus for high-speed recording compressed digital audio data with two dimensional blocks and its compressing parameters | Osamu Shimoyoshi, Hiroshi Suzuki, Makoto Mitsuno | 1996-08-20 |
| 5530750 | Apparatus, method, and system for compressing a digital input signal in more than one compression mode | — | 1996-06-25 |
| 5502789 | Apparatus for encoding digital data with reduction of perceptible noise | — | 1996-03-26 |
| 5491481 | Compressed digital data recording and reproducing apparatus with selective block deletion | — | 1996-02-13 |
| 5490170 | Coding apparatus for digital signal | Kyoya Tsutsui | 1996-02-06 |
| 5490130 | Apparatus and method for compressing a digital input signal in more than one compression mode | — | 1996-02-06 |
| 5461378 | Digital signal decoding apparatus | Osamu Shimoyoshi, Miki Abe, Takahiro Watanabe | 1995-10-24 |
| 5438643 | Compressed data recording and/or reproducing apparatus and signal processing method | Yoshiaki Oikawa, Kyoya Tsutsui | 1995-08-01 |
| 5396577 | Speech synthesis apparatus for rapid speed reading | Yoshiaki Oikawa | 1995-03-07 |
| 5388209 | Apparatus for high-speed recording compressed digital data with increased compression | — | 1995-02-07 |
| 5381143 | Digital signal coding/decoding apparatus, digital signal coding apparatus, and digital signal decoding apparatus | Osamu Shimoyoshi, Miki Abe, Takahiro Watanabe | 1995-01-10 |
| 5311561 | Method and apparatus for compressing a digital input signal with block floating applied to blocks corresponding to fractions of a critical band or to multiple critical bands | — | 1994-05-10 |
| 5305155 | Digital data reproducing apparatus | Yoshiaki Oikawa | 1994-04-19 |
| 5301205 | Apparatus and method for data compression using signal-weighted quantizing bit allocation | Kyoya Tsutsui | 1994-04-05 |
| 5299239 | Signal encoding apparatus | Naoto Iwahashi, Masayuki Nishiguchi, Makoto Akune, Yoshihito Fujiwara | 1994-03-29 |
| 5299240 | Signal encoding and signal decoding apparatus | Naoto Iwahashi, Masayuki Nishiguchi, Makoto Akune, Yoshihito Fujiwara | 1994-03-29 |
| 5299238 | Signal decoding apparatus | Naoto Iwahashi, Masayuki Nishiguchi, Makoto Akune, Yoshihito Fujiwara | 1994-03-29 |