H04Q 2213/1319
Amplifier, attenuation circuit, echo suppressor
H04Q2213/1319 (Amplifier, attenuation circuit, echo suppressor) appears on 260 US grants and 110 published applications in this corpus.
Search patents in H04Q- Granted patents
- 260
- Published applications
- 110
- Assignees
- 125
- Inventors
- 382
- Latest grant
- 21 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 9 | 0 |
| 1996 | 15 | 0 |
| 1997 | 13 | 0 |
| 1998 | 18 | 0 |
| 1999 | 16 | 0 |
| 2000 | 12 | 0 |
| 2001 | 18 | 6 |
| 2002 | 32 | 20 |
| 2003 | 15 | 13 |
| 2004 | 13 | 12 |
| 2005 | 14 | 13 |
| 2006 | 14 | 8 |
| 2007 | 7 | 6 |
| 2008 | 9 | 5 |
| 2009 | 8 | 10 |
| 2010 | 4 | 2 |
| 2011 | 4 | 2 |
| 2012 | 3 | 3 |
| 2013 | 6 | 2 |
| 2014 | 6 | 4 |
| 2015 | 2 | 0 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Echo cancellation system and method21 May 2024US 11,990,937 B2Cable Television Laboratories, Inc.
- Data transmission using alert signals to carry data19 Dec 2023US 11,848,794 B1Ethernovia Inc.
- Data transmission using alert signals to carry data29 Nov 2022US 11,516,038 B1Ethernovia Inc.
- Echo cancellation system and method23 Aug 2022US 11,424,828 B1Cable Television Laboratories, Inc.
- Echo cancellation system and method23 Mar 2021US 10,958,345 B1Cable Television Laboratories, Inc.
- Echo cancellation system and method22 Dec 2022US 2022/0407602 A1Cable Television Laboratories, Inc.
- Backscatter devices and network systems incorporating backscatter devices2 Jul 2020US 2020/0212956 A1University of Washington
- Signal Distribution System Cascadable AGC Device and Method30 Nov 2017US 2017/0346519 A9Entropic Communications, Inc.
- Signal Distribution System Cascadable AGC Device and Method10 Mar 2016US 2016/0072534 A1Entropic Communications, Inc.
- Analog front-end transmitter and a connection method of an x-digital subscriber line having a pre-distortion mechanism16 Oct 2014US 2014/0307867 A1Realtek Semiconductor Corp.
Most cited
By later US patents
- Multimedia collaboration system with separate data network and A/V network controlled by information transmitting on the data network741US 5,617,539 AVicor Corporation · 1997
- Cable connected wan interconnectivity services for corporate telecommuters702US 6,452,923 B1AT&T Corp. · 2002
- Call control in video conferencing allowing acceptance and identification of participants in a new incoming call during an active teleconference595US 5,758,079 AVicor Corporation · 1998
- Multimedia collaboration system arrangement for routing compressed AV signal through a participant site without decompressing the AV signal566US 5,689,641 AVicor Corporation · 1997
- Coaxial cable/twisted pair fed, integrated residence gateway controlled, set-top box537US 6,510,152 B1AT&T Corp. · 2003