H04B 1/0028
Wherein the ad/da conversion occurs at baseband stage
Official title: {wherein the AD/DA conversion occurs at baseband stage}
H04B1/0028 (Wherein the ad/da conversion occurs at baseband stage) appears on 462 US grants and 452 published applications in this corpus.
Search patents in H04B- Granted patents
- 462
- Published applications
- 452
- Assignees
- 241
- Inventors
- 1,062
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 4 |
| 2003 | 4 | 4 |
| 2004 | 8 | 5 |
| 2005 | 2 | 7 |
| 2006 | 4 | 11 |
| 2007 | 3 | 10 |
| 2008 | 5 | 9 |
| 2009 | 9 | 13 |
| 2010 | 11 | 17 |
| 2011 | 9 | 8 |
| 2012 | 14 | 14 |
| 2013 | 26 | 28 |
| 2014 | 18 | 16 |
| 2015 | 24 | 13 |
| 2016 | 16 | 19 |
| 2017 | 19 | 29 |
| 2018 | 34 | 38 |
| 2019 | 43 | 39 |
| 2020 | 46 | 35 |
| 2021 | 37 | 36 |
| 2022 | 23 | 21 |
| 2023 | 22 | 22 |
| 2024 | 20 | 18 |
| 2025 | 18 | 19 |
| 2026 | 11 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 1/0032With analogue quadrature frequency conversion to and from the baseband109
- H04B 1/0039Using dsp [digital signal processor] quadrature modulation and demodulation83
- H04B 1/0042Digital filtering65
- H04B 1/0035Channel filtering, i.e. selecting a frequency channel within a software radio system42
- H04B 1/0046Decimation, i.e. data rate reduction techniques32
Recent patents
- Waveform-triggered reception and buffering for millimeter-wave software-defined radios29 Sep 2026US 12,750,072 B2University of South Carolina
- Method and wireless device for performing control channel selection within a dynamic frequency selection (DFS) avoidance system1 Sep 2026US 12,726,948 B1Amazon Technologies, Inc.
- Receiver circuit scheme capable of avoiding clock harmonic interferences and reducing phase errors to maintain demodulator capability18 Aug 2026US 12,712,562 B2Pixart Imaging Inc.
- Configurable radio frequency front-end to support TTC and ISL satellite links11 Aug 2026US 12,706,616 B2CesiumAstro, Inc.
- Electronic device for obtaining reflection coefficient of antenna and operating method thereof11 Aug 2026US 12,706,632 B2Samsung Electronics Co., Ltd.
- Fast Frequency Hopping Technique1 Oct 2026US 2026/0303147 A1Gilat Satellite Networks Ltd.
- Radio frequency communication system, device and method27 Aug 2026US 2026/0254467 A1Beijing BOE Technology Development Co., Ltd.
- Receiver circuit scheme capable of avoiding clock harmonic interferences and reducing phase errors to maintain demodulator capability13 Aug 2026US 2026/0238219 A1Pixart Imaging Inc.
- Differentiated ultra-wideband sensing architecture13 Aug 2026US 2026/0238237 A1Infineon Technologies AG
- Wireless Circuitry with Weighted Envelope Tracking Delay16 Jul 2026US 2026/0205146 A1Apple Inc.
Most cited
By later US patents
- Digitally programmable multifunction radio system architecture271US 6,072,994 ANorthrop Grumman Corporation · 2000
- Wideband digital spectrometer263US 8,045,660 B1Hypres, Inc. · 2011
- 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