G06G 7/24
For evaluating logarithmic or exponential functions
Official title: for evaluating logarithmic or exponential functions, e.g. hyperbolic functions {(for multiplication, division or for evaluating powers or roots using logarithmic functions; gamma correction in television systems H04N5/20, H04N9/69)}
G06G7/24 (For evaluating logarithmic or exponential functions) appears on 165 US grants and 42 published applications in this corpus.
Search patents in G06G- Granted patents
- 165
- Published applications
- 42
- Assignees
- 102
- Inventors
- 231
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 2 |
| 2002 | 0 | 3 |
| 2003 | 6 | 4 |
| 2004 | 5 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 4 |
| 2007 | 4 | 5 |
| 2008 | 4 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 2 |
| 2011 | 3 | 1 |
| 2012 | 3 | 1 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 4 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bipolar transistor logarithmic converter with AC diode connection6 Jan 2026US 12,518,114 B2Texas Instruments Incorporated
- Nonlinear function operation apparatus, sigmoid function operation apparatus, hyperbolic tangent function operation apparatus, softmax function operation apparatus, and nonlinear function operation methods22 Apr 2025US 12,282,810 B2Soliton Systems K.K.
- Logarithmic current to voltage converters8 Apr 2025US 12,271,216 B2Analog Devices, Inc.
- Logarithmic demodulator for laser Wavelength-Modulaton Spectroscopy18 Jun 2024US 12,015,386 B2SeekOps Inc.
- Programmable neuron for analog non-volatile memory in deep learning artificial neural network7 Jun 2022US 11,354,562 B2Silicon Storage Technology, Inc.
- Current-sourcing temperature compensated logarithmic transimpedance amplifier using npn matched transistors with output adjustable voltage18 Jun 2026US 2026/0170274 A1Ciena Corporation
- Current converter circuit12 Mar 2026US 2026/0074666 A1NXP B. V.
- Method and circuit for measuring a current24 Jul 2025US 2025/0239979 A1STMicroelectronics International N. V.
- Nonlinear function operation apparatus, sigmoid function operation apparatus, hyperbolic tangent function operation apparatus, softmax function operation apparatus, and nonlinear function operation methods20 Feb 2025US 2025/0061293 A1Soliton Systems K.K.
- Logarithmic demodulator for laser wavelength-modulaton spectroscopy22 Aug 2024US 2024/0283432 A1SeekOps Inc.
Most cited
By later US patents
- Multiplier circuit53US 4,156,283 ATektronix, Inc. · 1979
- Synchronous logarithmic amplifier42US 5,298,811 AAnalog Devices, Inc. · 1994
- Third-order predistortion linearization circuit40US 5,172,068 AAmoco Corporation · 1992
- Temperature compensated logarithmic circuit37US 4,604,532 AAnalog Devices, Inc. · 1986
- Circuit for linearly amplifying and demodulating an AM-modulated signal, and integrated semiconductor element for such circuit36US 4,972,512 AU. S. Philips Corporation · 1990