G10H 2250/255
Z-transform
Official title: Z-transform, e.g. for dealing with sampled signals, delays or digital filters
G10H2250/255 (Z-transform) appears on 6 US grants and 0 published applications in this corpus.
Search patents in G10H- Granted patents
- 6
- Published applications
- 0
- Assignees
- 5
- Inventors
- 7
- Latest grant
- 16 Feb 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pitch shift method with conserved timbre16 Feb 1999US 5,872,727 AIndustrial Technology Research Institute
- Digital sampling instrument16 Dec 1997US 5,698,807 ACreative Technology Ltd
- Tone synthesizer6 Aug 1996US 5,543,580 AYamaha Corporation
- Digital sampling instrument28 Sep 1993US 5,248,845 AE-mu Systems, Inc.
- Musical tone generating apparatus with parameter controller for changing characteristics of musical tone signal22 Dec 1992US 5,173,567 AYamaha Corporation
No published applications in this class yet.
Most cited
By later US patents
- Digital filter for an electronic musical instrument35US 4,554,858 ANippon Gakki Seizo Kabushiki Kaisha · 1985
- Digital sampling instrument30US 5,248,845 AE-mu Systems, Inc. · 1993
- Digital sampling instrument29US 5,698,807 ACreative Technology Ltd · 1997
- Tone synthesizer15US 5,543,580 AYamaha Corporation · 1996
- Musical tone generating apparatus with parameter controller for changing characteristics of musical tone signal8US 5,173,567 AYamaha Corporation · 1992