Makoto Akune
25Patents
10h-index
21Co-inventors
75Inventor score
Filing activity: Jul 18, 1990 → Oct 30, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5115240A | Method and apparatus for encoding voice signals divided into a plurality of frequency bands | Electricity | 96 | Expired |
| US5687157A | Method of recording and reproducing digital audio signal and apparatus thereof | Electricity | 90 | Expired |
| US5757938A | High efficiency encoding device and a noise spectrum modifying device and method | Electricity | 45 | Expired |
| US5204677A | Quantizing error reducer for audio signal | Electricity | 42 | Expired |
| US5299240A | Signal encoding and signal decoding apparatus | Electricity | 23 | Expired |
| US5754973A | Methods and apparatus for replacing missing signal information with synthesized information and recording medium therefor | Physics | 13 | Expired |
| US5563913A | High efficiency encoding device and a noise spectrum modifying device and method | Electricity | 12 | Expired |
| US6044338A | Signal processing method and apparatus and signal recording medium | Physics | 11 | Expired |
| US5719571A | Sampling rate converting method and apparatus | Electricity | 11 | Expired |
| US5197087A | Signal encoding apparatus | Electricity | 10 | Expired |
| US5684923A | Methods and apparatus for compressing and quantizing signals | Electricity | 6 | Expired |
| US5856796A | Sampling rate converting method and apparatus | Electricity | 6 | Expired |
| US5737717A | Method and apparatus for altering frequency components of a transformed signal, and a recording medium therefor | Electricity | 6 | Expired |
| US5719574A | Digital audio transmission apparatus | Physics | 5 | Expired |
| US5299239A | Signal encoding apparatus | Electricity | 4 | Expired |
| US5831565A | Signal processing apparatus for converting multi-bit signal having sub-data added thereto into one-bit signal | Electricity | 3 | Expired |
| US6941333B2 | Digital signal processing apparatus and method | Electricity | 3 | Expired |
| USRE37864E1 | Quantizing error reducer for audio signal | General | 2 | Expired |
| US5299238A | Signal decoding apparatus | Electricity | 2 | Expired |
| USRE36559E | Method and apparatus for encoding audio signals divided into a plurality of frequency bands | General | 1 | Expired |
| US12142294B2 | Signal processing apparatus, method, and program to detect a time interval containing sound based on a distance between two mobile bodies | Electricity | 0 | Active |
| US11159905B2 | Signal processing apparatus and method | Electricity | 0 | Active |
| US12081961B2 | Signal processing device and method | Electricity | 0 | Active |
| US11405715B2 | Information processing apparatus | Electricity | 0 | Active |
| US11997472B2 | Signal processing device, signal processing method, and program | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.