H04B 1/0039
Using dsp [digital signal processor] quadrature modulation and demodulation
Official title: {using DSP [Digital Signal Processor] quadrature modulation and demodulation}
H04B1/0039 (Using dsp [digital signal processor] quadrature modulation and demodulation) appears on 83 US grants and 74 published applications in this corpus.
Search patents in H04B- Granted patents
- 83
- Published applications
- 74
- Assignees
- 58
- Inventors
- 186
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 2 |
| 2004 | 3 | 3 |
| 2005 | 0 | 1 |
| 2006 | 3 | 3 |
| 2007 | 1 | 2 |
| 2008 | 1 | 4 |
| 2009 | 1 | 5 |
| 2010 | 3 | 6 |
| 2011 | 1 | 1 |
| 2012 | 3 | 1 |
| 2013 | 2 | 1 |
| 2014 | 2 | 3 |
| 2015 | 4 | 1 |
| 2016 | 2 | 2 |
| 2017 | 0 | 2 |
| 2018 | 2 | 7 |
| 2019 | 7 | 3 |
| 2020 | 5 | 6 |
| 2021 | 6 | 4 |
| 2022 | 3 | 7 |
| 2023 | 6 | 3 |
| 2024 | 3 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Linearization of low gain low-noise amplifiers through third-order distortion cancellation24 Feb 2026US 12,562,690 B2QUALCOMM Incorporated
- System and method for processing audio signals8 Apr 2025US 12,271,228 B2
- Integrated mixed-signal ASIC with ADC, DAC, and DSP18 Mar 2025US 12,255,729 B2Seakr Engineering, Inc.
- Demodulating apparatus, base station and demodulating method31 Dec 2024US 12,184,315 B2Toyota Jidosha Kabushiki Kaisha
- Programmable baseband filter for selectively coupling with at least a portion of another filter16 Apr 2024US 11,962,278 B2QUALCOMM Incorporated
- Active Phase Shifter with Quadrature Hybrid Coupler26 Mar 2026US 2026/0088835 A1Apple Inc.
- Demodulating apparatus, base station and demodulating method22 May 2025US 2025/0167821 A1Toyota Jidosha Kabushiki Kaisha
- Receiver, communication device, and signal processing method16 Jan 2025US 2025/0023596 A1Huawei Technologies Co., Ltd.
- Integrated mixed-signal asic with adc, dac, and dsp2 May 2024US 2024/0146402 A1Seakr Engineering, Inc.
- System and method for processing audio signals5 Oct 2023US 2023/0315151 A1
Most cited
By later US patents
- Digitally programmable multifunction radio system architecture271US 6,072,994 ANorthrop Grumman Corporation · 2000
- Common receive module for a programmable digital radio240US 5,859,878 ANorthrop Grumman Corporation · 1999
- Direct conversion receiver for multiple protocols177US 5,557,642 AWireless Access · 1996
- Receiver with sigma-delta analog-to-digital converter for sampling a received signal170US 6,005,506 AQUALCOMM Incorporated · 1999
- Radio-frequency apparatus and associated methods150US 8,467,483 B2Silicon Laboratories Inc. · 2013