G06F 17/145
Square transforms
Official title: {Square transforms, e.g. Hadamard, Walsh, Haar, Hough, Slant transforms}
G06F17/145 (Square transforms) appears on 87 US grants and 72 published applications in this corpus.
Search patents in G06F- Granted patents
- 87
- Published applications
- 72
- Assignees
- 84
- Inventors
- 204
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 8 |
| 2004 | 2 | 3 |
| 2005 | 1 | 1 |
| 2006 | 4 | 4 |
| 2007 | 4 | 3 |
| 2008 | 2 | 3 |
| 2009 | 1 | 5 |
| 2010 | 2 | 3 |
| 2011 | 3 | 1 |
| 2012 | 3 | 1 |
| 2013 | 0 | 0 |
| 2014 | 8 | 2 |
| 2015 | 1 | 2 |
| 2016 | 0 | 4 |
| 2017 | 2 | 3 |
| 2018 | 3 | 6 |
| 2019 | 2 | 1 |
| 2020 | 3 | 5 |
| 2021 | 5 | 5 |
| 2022 | 6 | 2 |
| 2023 | 3 | 2 |
| 2024 | 0 | 3 |
| 2025 | 3 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hardware efficient weight structure for sparse deep neural networks2 Jun 2026US 12,645,750 B2The Regents of the University of Michigan
- Multi-spectrum fusion decision fault diagnosis method for high-speed electric multiple-unit bearing19 May 2026US 12,631,522 B2Xi' An Jiaotong University
- Quantum circuit and methods for use therewith4 Nov 2025US 12,462,173 B2BEIT Inc.
- Systems and methods for preparation of normal distributions on quantum computers8 Jul 2025US 12,353,952 B2JPMorgan Chase Bank, N. A.
- Method and apparatus for power efficient lossless compression and decompression4 Feb 2025US 12,216,772 B2Microsoft Technology Licensing, LLC
- Training deep neural networks with 4-bit integers24 Sep 2026US 2026/0289282 A1
- Methods for identifying icing zones of typical micro-terrain and micro-climate on transmission lines20 Aug 2026US 2026/0243920 A1Chongqing Dige Technology Co., Ltd.
- Vehicle vibration extraction system, vehicle vibration extraction apparatus, and vehicle vibration extraction method1 May 2025US 2025/0137839 A1NEC Corporation
- Multi-spectrum fusion decision fault diagnosis method for high-speed electric multiple-unit bearing7 Nov 2024US 2024/0369448 A1Xi' An Jiaotong University
- Method and apparatus for power efficient lossless compression and decompression20 Jun 2024US 2024/0202347 A1Microsoft Technology Licensing, LLC
Most cited
By later US patents
- Image reconstruction by use of discrete cosine and related transforms193US 5,168,375 APolaroid Corporation · 1992
- System and method for computing and unordered Hadamard transform143US 6,766,342 B2Sun Microsystems, Inc. · 2004
- Multiple block-size transform video coding using an asymmetric sub-band structure115US 5,097,331 ABell Communications Research, Inc. · 1992
- Fast hadamard transform within a code division, multiple access communication system112US 5,856,935 AMotorola, Inc. · 1999
- Video player and/or recorder with Hadamard transform67US 4,210,931 ADiscovision Associates · 1980