H03H 15/02
Transversal filters: using analogue shift registers
Official title: using analogue shift registers
H03H15/02 (Transversal filters: using analogue shift registers) appears on 249 US grants and 81 published applications in this corpus.
Search patents in H03H- Granted patents
- 249
- Published applications
- 81
- Assignees
- 88
- Inventors
- 279
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 13 | 0 |
| 1978 | 13 | 0 |
| 1979 | 21 | 0 |
| 1980 | 16 | 0 |
| 1981 | 34 | 0 |
| 1982 | 17 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 3 |
| 2004 | 3 | 1 |
| 2005 | 0 | 5 |
| 2006 | 2 | 2 |
| 2007 | 3 | 2 |
| 2008 | 3 | 2 |
| 2009 | 2 | 9 |
| 2010 | 1 | 9 |
| 2011 | 7 | 7 |
| 2012 | 6 | 4 |
| 2013 | 9 | 8 |
| 2014 | 8 | 7 |
| 2015 | 4 | 3 |
| 2016 | 3 | 3 |
| 2017 | 6 | 5 |
| 2018 | 6 | 2 |
| 2019 | 6 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 3 |
| 2023 | 2 | 0 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cascading of bucket brigade delay devices9 Jun 2026US 12,652,025 B2Sound Semiconductor, Inc.
- Filters3 Jun 2025US 12,323,160 B2Cirrus Logic, Inc.
- Cascadable filter architecture11 Mar 2025US 12,249,970 B2Imec Vzw
- Analog FIR filter19 Nov 2024US 12,149,221 B2Semtech Corporation
- Near-zero latency analog bi-quad infinite impulse response filter27 Jun 2023US 11,689,393 B1The Boeing Company
- Cascading of bucket brigade delay devices28 May 2026US 2026/0149431 A1Sound Semiconductor, Inc.
- Switch-capacitor filter for receiver baseband anti-aliasing signal filtering21 May 2026US 2026/0142670 A1QUALCOMM Incorporated
- Filters21 Aug 2025US 2025/0266845 A1Cirrus Logic International Semiconductor Ltd.
- Filters24 Nov 2022US 2022/0376700 A1Cirrus Logic International Semiconductor Ltd.
- Analog fir filter20 Jan 2022US 2022/0021374 A1Semtech Corporation
Most cited
By later US patents
- Charge sharing analog computation circuitry and applications127US 8,547,272 B2Analog Devices, Inc. · 2013
- Fast high precision discrete-time analog finite impulse response filter120US 5,563,819 ACirrus Logic, Inc. · 1996
- Charge-transfer switched-capacity filter103US 4,365,217 AThomson-CSF · 1982
- Electrical filter circuit operated with a definite sampling and clock frequency f.sub.T which consists of CTD elements102US 4,430,629 ASiemens Aktiengesellschaft · 1984
- Single phase signal processing system utilizing charge transfer devices62US 4,139,783 AGeneral Electric Company · 1979