Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9307950 | Sleep apnea syndrome testing apparatus, test method for sleep apnea syndrome and tangible recording medium recording program | Masakiyo Tanaka, Masanao Suzuki | 2016-04-12 |
| 9247076 | Portable terminal device and method of controlling portable terminal device | Shusaku Ito, Takeshi Otani, Taro Togawa, Masanao Suzuki | 2016-01-26 |
| 8774397 | Telephone and voice adjustment method for telephone | Shusaku Ito, Taro Togawa, Takeshi Otani | 2014-07-08 |
| 8751221 | Communication apparatus for adjusting a voice signal | Kaori Endo, Takeshi Otani, Taro Togawa | 2014-06-10 |
| 8676571 | Audio signal processing system and audio signal processing method | Takeshi Otani, Taro Togawa, Masanao Suzuki | 2014-03-18 |
| 8558691 | Sensing apparatus, sensor information gathering apparatus, sensing method, and remote sensing method | Masanao Suzuki, Masakiyo Tanaka, Taro Togawa | 2013-10-15 |
| 8560308 | Speech sound enhancement device utilizing ratio of the ambient to background noise | Kaori Endo, Takeshi Otani, Taro Togawa | 2013-10-15 |
| 8526578 | Voice communication apparatus | Takeshi Otani, Taro Togawa, Kaori Endo | 2013-09-03 |
| 8488473 | Voice communication quality assessing system | Takeshi Otani, Masakiyo Tanaka | 2013-07-16 |
| 8457955 | Voice reproduction with playback time delay and speed based on background noise and speech characteristics | Taro Togawa, Takeshi Otani, Kaori Endo | 2013-06-04 |
| 8438035 | Concealment signal generator, concealment signal generation method, and computer product | Kaori Endo, Chikako Matsumoto | 2013-05-07 |
| 8392199 | Clipping detection device and method | Takeshi Otani, Masakiyo Tanaka, Shusaku Ito | 2013-03-05 |
| 8364475 | Voice processing apparatus and voice processing method for changing accoustic feature quantity of received voice signal | Taro Togawa, Takeshi Otani, Kaori Endo | 2013-01-29 |
| 8340973 | Data embedding device and data extraction device | Yoshiteru Tsuchinaga, Masanao Suzuki, Masakiyo Tanaka, Joe Mizuno | 2012-12-25 |
| 8280727 | Voice band expansion device, voice band expansion method, and communication apparatus | Kaori Endo, Takeshi Otani, Taro Togawa | 2012-10-02 |
| 8264981 | Inter-multipoint voice conversation apparatus | Ryosuke Hamasaki | 2012-09-11 |
| 8265231 | Method for identifying a device transmitting an echo signal, echo source identifying method for identifying echo source, measuring apparatus for identifying a source of an echo, and echo source identifying apparatus | Takeshi Otani | 2012-09-11 |
| 8243941 | Active noise reduction system and active noise reduction method | Taro Togawa, Takeshi Otani, Kaori Endo | 2012-08-14 |
| 8208623 | Echo processing method and device | Takeshi Otani, Masanao Suzuki | 2012-06-26 |
| 8189800 | Active silencer and method for controlling active silencer | Taro Togawa, Takeshi Otani, Kaori Endo | 2012-05-29 |
| 8155333 | Active noise control apparatus | Taro Togawa, Takeshi Otani, Kaori Endo | 2012-04-10 |
| 8005219 | Data decryption apparatus and data encryption apparatus | Taro Togawa, Kaori Endo, Takeshi Otani, Masakiyo Tanaka | 2011-08-23 |
| 7974846 | Data embedding device and data extraction device | Yoshiteru Tsuchinaga, Masanao Suzuki, Masakiyo Tanaka | 2011-07-05 |
| 7949016 | Interactive communication system, communication equipment and communication control method | Yoshiteru Tsuchinaga, Masanao Suzuki, Masakiyo Tanaka | 2011-05-24 |
| 7925500 | Pitch conversion method and device for converting a pitch of an input signal into a desired pitch | Kaori Endo, Chikako Matsumoto, Taro Togawa | 2011-04-12 |