Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6898615 | Signal processing unit and signal processing method including using an exponent part and a mantissa part for power generation | Takeshi Norimatsu, Mineo Tsushima, Tomokazu Ishikawa, Yoshiaki Sawada | 2005-05-24 |
| 6826526 | AUDIO SIGNAL CODING METHOD, DECODING METHOD, AUDIO SIGNAL CODING APPARATUS, AND DECODING APPARATUS WHERE FIRST VECTOR QUANTIZATION IS PERFORMED ON A SIGNAL AND SECOND VECTOR QUANTIZATION IS PERFORMED ON AN ERROR COMPONENT RESULTING FROM THE FIRST VECTOR QUANTIZATION | Takeshi Norimatsu, Yoshihisa Nakato, Mineo Tsushima, Tomokazu Ishikawa | 2004-11-30 |
| 6823310 | Audio signal processing device and audio signal high-rate reproduction method used for audio visual equipment | Tsukuru Ishito, Masaharu Matsumoto, Takeshi Fujita, Takashi Katayama, Masahiro Sueyoshi +4 more | 2004-11-23 |
| 6678653 | Apparatus and method for coding audio data at high speed using precision information | Mineo Tsushima, Takeshi Norimatsu | 2004-01-13 |
| 6631352 | Decoding circuit and reproduction apparatus which mutes audio after header parameter changes | Takeshi Fujita, Takashi Katayama, Masahiro Sueyoshi, Masaharu Matsumoto, Akihisa Kawamura +2 more | 2003-10-07 |
| 6546105 | Sound image localization device and sound image localization method | Takashi Katayama, Masaharu Matsumoto, Masahiro Sueyoshi, Takeshi Fujita, Akihisa Kawamura +2 more | 2003-04-08 |
| 6484142 | Encoder using Huffman codes | Takeshi Norimatsu, Mineo Tsushima, Tomokazu Ishikawa, Yoshiaki Sawada | 2002-11-19 |
| 6460016 | Audio decoding device for decoding coded audio information with multiple channels | Masahiro Sueyoshi, Tukuru Ishito, Takeshi Fujita, Takashi Katayama, Masaharu Matsumoto +3 more | 2002-10-01 |
| 6363407 | Exponential calculation device and decoding device | Takeshi Fujita, Masahiro Sueyoshi, Akihisa Kawamura, Masaharu Matsumoto, Takashi Katayama +2 more | 2002-03-26 |
| 6356639 | AUDIO DECODING APPARATUS, SIGNAL PROCESSING DEVICE, SOUND IMAGE LOCALIZATION DEVICE, SOUND IMAGE CONTROL METHOD, AUDIO SIGNAL PROCESSING DEVICE, AND AUDIO SIGNAL HIGH-RATE REPRODUCTION METHOD USED FOR AUDIO VISUAL EQUIPMENT | Tsukuru Ishito, Masaharu Matsumoto, Takeshi Fujita, Takashi Katayama, Masahiro Sueyoshi +4 more | 2002-03-12 |
| 6304890 | Exponential calculation device and decoding device | Takeshi Fujita, Masahiro Sueyoshi, Akihisa Kawamura, Masaharu Matsumoto, Takashi Katayama +2 more | 2001-10-16 |
| 6297754 | Decoding device | Takeshi Fujita, Masahiro Sueyoshi, Akihisa Kawamura, Masaharu Matsumoto, Takashi Katayama +2 more | 2001-10-02 |
| 6295319 | Decoding device | Masahiro Sueyoshi, Masaharu Matsumoto, Takeshi Fujita, Takashi Katayama, Kazutaka Abe +5 more | 2001-09-25 |
| 6233562 | Audio decoding device and signal processing device for decoding multi-channel signals with reduced memory requirements | Masahiro Sueyoshi, Tukuru Ishito, Takeshi Fujita, Takashi Katayama, Masaharu Matsumoto +3 more | 2001-05-15 |
| 6118821 | Compressed code decoding device and audio decoding device | Masaharu Matsumoto, Takashi Katayama, Masahiro Sueyoshi, Takeshi Fujita, Akihisa Kawamura +3 more | 2000-09-12 |
| 5845247 | Reproducing apparatus | — | 1998-12-01 |