|
| US3978287 | 11 Dic 1974 | 31 Ago 1976 | | Real time analysis of voiced sounds |
| US3982070 | 5 Jun 1974 | 21 Sep 1976 | Bell Telephone Laboratories, Incorporated | Phase vocoder speech synthesis system |
| US3995116 | 18 Nov 1974 | 30 Nov 1976 | Bell Telephone Laboratories, Incorporated | Emphasis controlled speech synthesizer |
| US4045616 | 23 May 1975 | 30 Ago 1977 | Time Data Corporation | Vocoder system |
| US4064363 | 24 May 1976 | 20 Dic 1977 | Northrop Corporation | Vocoder systems providing wave form analysis and synthesis using fourier transform representative signals |
| US4374304 | 26 Sep 1980 | 15 Feb 1983 | Bell Telephone Laboratories, Incorporated | Spectrum division/multiplication communication arrangement for speech signals |
| US4442540 | 4 Jun 1981 | 10 Abr 1984 | Bell Telephone Laboratories, Incorporated | Data over voice transmission arrangement |
| US4485484 | 28 Oct 1982 | 27 Nov 1984 | AT&T Bell Laboratories | Directable microphone system |
| US4569075 | 19 Jul 1982 | 4 Feb 1986 | International Business Machines Corporation | Method of coding voice signals and device using said method |
| US4691292 | 13 Abr 1983 | 1 Sep 1987 | RCA Corporation | System for digital multiband filtering |
| US4856068 | 2 Abr 1987 | 8 Ago 1989 | Massachusetts Institute of Technology | Audio pre-processing methods and apparatus |
| US4885790 | 18 Abr 1989 | 5 Dic 1989 | Massachusetts Institute of Technology | Processing of acoustic waveforms |
| US4937873 | 8 Abr 1988 | 26 Jun 1990 | Massachusetts Institute of Technology | Computationally efficient sine wave synthesis for acoustic waveform processing |
| US5054072 | 15 Dic 1989 | 1 Oct 1991 | Massachusetts Institute of Technology | Coding of acoustic waveforms |
| US5133010 | 21 Feb 1990 | 21 Jul 1992 | Motorola, Inc. | Method and apparatus for synthesizing speech without voicing or pitch information |
| US7225027 | 27 Ago 2002 | 29 May 2007 | Regents of the University of California | Cochlear implants and apparatus/methods for improving audio signals by use of frequency-amplitude-modulation-encoding (FAME) strategies |
| US7881481 | 18 May 2006 | 1 Feb 2011 | LG Electronics Inc. | Audio processing apparatus and method |
| USRE36478 | 12 Abr 1996 | 28 Dic 1999 | Massachusetts Institute of Technology | Processing of acoustic waveforms |
