H04J 2203/0087
Support of voice
H04J2203/0087 (Support of voice) appears on 9 US grants and 4 published applications in this corpus.
Search patents in H04J- Granted patents
- 9
- Published applications
- 4
- Assignees
- 8
- Inventors
- 35
- Latest grant
- 11 May 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Redundancy gateway system11 May 2010US 7,715,374 B2Oki Electric Industry Co., Ltd.
- Communication device with 1:1 protection5 May 2009US 7,529,182 B2Fujitsu Limited
- Method and system for link-based clock synchronization in asynchronous networks27 Jan 2009US 7,483,450 B1Nortel Networks Limited
- Network path protection2 Aug 2005US 6,925,054 B1Nortel Networks Limited
- Voice-over-ATM switch architecture allowing congestion-dependent transport of silence cells24 Feb 2004US 6,697,353 B2AT&T Corp.
- Redundancy gateway system26 Jun 2008US 2008/0151915 A1Oki Electric Industry Co., Ltd.
- Communication method and communication device11 Nov 2004US 2004/0223451 A1Fujitsu Limited
- Voice-over-atm switch architecture allowing congestion-dependent transport of silence cells1 May 2003US 2003/0081610 A1AT&T Corp.
- Hybrid fiber coax communication system1 May 2003US 2003/0081619 A1
Most cited
By later US patents
- Network path protection72US 6,925,054 B1Nortel Networks Limited · 2005
- Voice circuit emulation system in a packet switching network41US 5,600,641 AInternational Business Machines Corporation · 1997
- Method and system for link-based clock synchronization in asynchronous networks35US 7,483,450 B1Nortel Networks Limited · 2009
- Tandem relay device7US 6,172,978 B2Mitsubishi Denki Kabushiki Kaisha · 2001
- Method and apparatus for provisioning inter-machine trunks6US 6,363,074 B1Unisphere Solutions, Inc. · 2002