H04Q 2213/13402
Data transmission out of voice frequency band
H04Q2213/13402 (Data transmission out of voice frequency band) appears on 7 US grants and 4 published applications in this corpus.
Search patents in H04Q- Granted patents
- 7
- Published applications
- 4
- Assignees
- 6
- Inventors
- 16
- Latest grant
- 12 Dec 2006
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for storing and transferring information tokens in a low network communication12 Dec 2006US 7,149,290 B2SBC Properties, L.P.
- System and method for storing and transferring information tokens in a low network communication22 Mar 2005US 6,870,912 B2SBC Properties, L.P.
- System and method for storing and transferring information tokens in a communication network4 Nov 2003US 6,643,361 B2SBC Properties, L.P.
- Method and apparatus for providing interoperation between a digital communication system and a public switched telephone network11 Feb 2003US 6,519,336 B1General Dynamics Decision Systems, Inc.
- System and method for storing and transferring information tokens in a communication network7 May 2002US 6,385,309 B1Ameritech Corporation
- System and method for storing and transferring information tokens in a low network communication30 Jun 2005US 2005/0141685 A1SBC Properties, L.P.
- System and method for storing and transferring information tokens in a low network communication22 Jan 2004US 2004/0013249 A1Ameritech Corporation
- System and method for storing and transferring information tokens in a communication network26 Jun 2003US 2003/0118164 A1Ameritech Corporation
- Two-conductor medium communication systems and methods for transmission and reception of multiple-channel data signals24 Jan 2002US 2002/0010940 A1
Most cited
By later US patents
- System and method for storing and transferring information tokens in a low network communication52US 6,154,528 AAmeritech Corporation · 2000
- Method and apparatus for automatically converting from an analog voice mode to a simultaneous voice and data mode for a multi-modal call over a telephone line44US 5,606,599 AIntel Corporation · 1997
- System and method for storing and transferring information tokens in a communication network15US 6,385,309 B1Ameritech Corporation · 2002
- System and method for storing and transferring information tokens in a communication network6US 6,643,361 B2SBC Properties, L.P. · 2003
- System and method for storing and transferring information tokens in a low network communication6US 6,870,912 B2SBC Properties, L.P. · 2005