H04N 1/3273
A loop current
Official title: {a loop current}
H04N1/3273 (A loop current) appears on 23 US grants and 7 published applications in this corpus.
Search patents in H04N- Granted patents
- 23
- Published applications
- 7
- Assignees
- 14
- Inventors
- 36
- Latest grant
- 7 Nov 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Facsimile apparatus, method of controlling facsimile apparatus, and storage medium7 Nov 2017US 9,813,583 B2Canon Kabushiki Kaisha
- Communication device suppressing occurrence of communication disturbance4 Jul 2017US 9,699,350 B2KYOCERA Document Solutions Inc.
- Facsimile, method of controlling the same and image forming apparatus having facsimile function26 Jan 2016US 9,247,102 B2Samsung Electronics Co., Ltd.
- Improper connection determination method and communication apparatus4 Feb 2014US 8,644,456 B2Brother Kogyo Kabushiki Kaisha
- Facsimile device31 Aug 2010US 7,787,156 B2Brother Kogyo Kabushiki Kaisha
- Communication device suppressing occurrence of communication disturbance2 Mar 2017US 2017/0064136 A1KYOCERA Document Solutions Inc.
- Facsimile apparatus, method of controlling facsimile apparatus, and storage medium8 Dec 2016US 2016/0360064 A1Canon Kabushiki Kaisha
- Facsimile, method of controlling the same and image forming apparatus having facsimile function13 Nov 2014US 2014/0333973 A1Samsung Electronics Co., Ltd.
- Improper Connection Determination Method and Communication Apparatus2 Dec 2010US 2010/0303212 A1Brother Kogyo Kabushiki Kaisha
- Communication Terminal Device, Communication Method, and Communication System19 Jul 2007US 2007/0165652 A1Murata Kikai Kabushiki Kaisha
Most cited
By later US patents
- Modem device for communication of facsimile or file data32US 5,452,106 AExfax Technologies Ltd Pty · 1995
- Dedicated line eliminator for facsimile/telephone systems28US 5,146,489 AIT Systems Corporation · 1992
- Faxmodem with scanning capability15US 5,528,385 AZoom Telephonics, Inc. · 1996
- Facsimile apparatus13US 5,369,689 ACanon Kabushiki Kaisha · 1994
- Communication apparatus for generating a call signal from a telephone set to a data terminal12US 4,942,600 ACanon Kabushiki Kaisha · 1990