H04N 2201/33371
Using test signals
Official title: using test signals, e.g. checking error occurrences
H04N2201/33371 (Using test signals) appears on 36 US grants and 12 published applications in this corpus.
Search patents in H04N- Granted patents
- 36
- Published applications
- 12
- Assignees
- 22
- Inventors
- 85
- Latest grant
- 22 Mar 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Feature extraction apparatus, feature extraction program, and image processing apparatus22 Mar 2016US 9,294,665 B2Panasonic Intellectual Property Management Co., Ltd.
- Fax machine and method of performing handshaking process based on T.30 protocol19 May 2015US 9,036,216 B2Samsung Electronics Co., Ltd.
- Dynamic facsimile transcoding in a unified messaging platform29 Apr 2014US 8,711,857 B2AT&T Intellectual Property I, L. P.
- Apparatus and method for facsimile transmission configuration16 Apr 2013US 8,422,062 B2Xerox Corporation
- Communication terminal device and reception controlling method for communication terminal device2 Oct 2012US 8,280,016 B2Oki Data Corporation
- Feature extraction apparatus, feature extraction program, and image processing apparatus24 Jul 2014US 2014/0204238 A1Panasonic Corporation
- Fax machine and method of performing handshaking process based on t.30 protocol1 May 2014US 2014/0118794 A1Samsung Electronics Co., Ltd.
- Apparatus and method for facsimile transmission configuration10 Nov 2011US 2011/0273747 A1Xerox Corporation
- Dynamic facsimile transcoding in a unified messaging platform1 Apr 2010US 2010/0079784 A1AT&T Intellectual Property I, L. P.
- Communication terminal device and reception controlling method for communication terminal device24 Dec 2009US 2009/0316192 A1Oki Data Corporation
Most cited
By later US patents
- Dynamic facsimile transcoding in a unified messaging platform221US 8,711,857 B2AT&T Intellectual Property I, L. P. · 2014
- Image communication system, and image communication apparatus and modem used in the system105US 5,351,134 ACanon Kabushiki Kaisha · 1994
- Method of signal transmission with selected signal transmission rate70US 4,630,126 AFujitsu Limited · 1986
- Data transmission/reception apparatus60US 4,897,831 ACanon Kabushiki Kaisha · 1990
- Communication method and equipment for freeze-frame video phone50US 5,199,061 AElectronics and Telecommunications Research Institute · 1993