G06F 7/4806
Computations with complex numbers
Official title: {Computations with complex numbers}
G06F7/4806 (Computations with complex numbers) appears on 173 US grants and 151 published applications in this corpus.
Search patents in G06F- Granted patents
- 173
- Published applications
- 151
- Assignees
- 96
- Inventors
- 331
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 6 | 5 |
| 2003 | 4 | 9 |
| 2004 | 3 | 11 |
| 2005 | 1 | 7 |
| 2006 | 5 | 4 |
| 2007 | 6 | 6 |
| 2008 | 4 | 3 |
| 2009 | 9 | 5 |
| 2010 | 7 | 9 |
| 2011 | 4 | 3 |
| 2012 | 7 | 8 |
| 2013 | 9 | 10 |
| 2014 | 7 | 5 |
| 2015 | 9 | 0 |
| 2016 | 7 | 6 |
| 2017 | 3 | 2 |
| 2018 | 4 | 1 |
| 2019 | 4 | 11 |
| 2020 | 9 | 12 |
| 2021 | 4 | 4 |
| 2022 | 7 | 15 |
| 2023 | 5 | 4 |
| 2024 | 4 | 6 |
| 2025 | 5 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for graphing complex function, program storage medium, and information processing apparatus8 Sep 2026US 12,730,608 B2Casio Computer Co., Ltd.
- Complex multiplication circuit16 Jun 2026US 12,657,004 B2Mitsubishi Electric Corporation
- CORDIC computation of sin/cos using combined approach in associative memory7 Apr 2026US 12,596,529 B2GSI Technology, Inc.
- Apparatus and method for complex multiplication2 Dec 2025US 12,487,820 B1Intel Corporation
- Arithmetic circuit12 Aug 2025US 12,386,591 B2Ntt Innovative Devices Corporation
- Cordic computation of sin/cos using combined approach in associative memory23 Jul 2026US 2026/0211619 A1GSI Technology, Inc.
- Method and Apparatus for Configuring a Reduced Instruction Set Computer Processor Architecture to Execute a Fully Homomorphic Encryption Algorithm12 Feb 2026US 2026/0044347 A1
- Linear approximation of a complex number magnitude12 Jun 2025US 2025/0190170 A1Texas Instruments Incorporated
- Processing apparatus and control method12 Jun 2025US 2025/0193873 A1Huawei Technologies Co., Ltd.
- Fast Fourier Transforms for Processing-in-Memory3 Apr 2025US 2025/0111006 A1Advanced Micro Devices, Inc.
Most cited
By later US patents
- Pipelined linear array of processor elements for performing matrix computations97US 6,675,187 B1Agere Systems Inc. · 2004
- Method for performing multiply-add operations on packed data90US 6,385,634 B1Intel Corporation · 2002
- Method and apparatus for storing complex numbers to allow for efficient complex multiplication operations and performing such complex multiplication operations85US 5,936,872 AIntel Corporation · 1999
- Cordic complex multiplier82US 4,896,287 AGeneral Electric Company · 1990
- Circuitry for calculating magnitude of vector sum from its orthogonal components in digital television receiver76US 4,692,889 ARCA Corporation · 1987