H04N 1/32719
A facsimile calling signal
Official title: {a facsimile calling signal, e.g. CNG}
H04N1/32719 (A facsimile calling signal) appears on 145 US grants and 49 published applications in this corpus.
Search patents in H04N- Granted patents
- 145
- Published applications
- 49
- Assignees
- 59
- Inventors
- 231
- Latest grant
- 17 Nov 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 8 | 0 |
| 1996 | 16 | 0 |
| 1997 | 11 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 2 |
| 2002 | 4 | 0 |
| 2003 | 1 | 7 |
| 2004 | 1 | 2 |
| 2005 | 2 | 8 |
| 2006 | 5 | 4 |
| 2007 | 4 | 2 |
| 2008 | 0 | 3 |
| 2009 | 2 | 0 |
| 2010 | 5 | 5 |
| 2011 | 1 | 0 |
| 2012 | 1 | 2 |
| 2013 | 5 | 3 |
| 2014 | 2 | 3 |
| 2015 | 5 | 1 |
| 2016 | 2 | 1 |
| 2017 | 3 | 3 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Image forming apparatus and control method of image forming apparatus17 Nov 2020US 10,841,449 B2Toshiba Tec Kabushiki Kaisha
- Image forming apparatus and control method of image forming apparatus21 Apr 2020US 10,630,855 B2Toshiba Tec Kabushiki Kaisha
- Processing a fax transmission using a mobile device25 Jun 2019US 10,334,136 B2Advanced Messaging Technologies, Inc.
- Image communication apparatus capable of performing facsimile communication via IP network, method of controlling the same, and storage medium14 Aug 2018US 10,051,137 B2Canon Kabushiki Kaisha
- Processing a fax transmission using a mobile device13 Feb 2018US 9,894,242 B2Advanced Messaging Technologies, Inc.
- Image forming apparatus and control method of image forming apparatus20 Aug 2020US 2020/0267276 A1Toshiba Tec Kabushiki Kaisha
- Image forming apparatus and control method of image forming apparatus21 Nov 2019US 2019/0356802 A1Toshiba Tec Kabushiki Kaisha
- Processing a fax transmission using a mobile device30 Aug 2018US 2018/0249038 A1Advanced Messaging Technologies, Inc.
- Processing a Fax Transmission Using a Mobile Device13 Jul 2017US 2017/0201645 A1Advanced Messaging Technologies, Inc.
- Image communication apparatus capable of performing facsimile communication via ip network, method of controlling the same, and storage medium30 Mar 2017US 2017/0094068 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Multi-function telecommunications instrument78US 5,631,745 ACurrent Logic · 1997
- Data communication apparatus adapted to perform data communication and speech communication76US 4,800,439 ACanon Kabushiki Kaisha · 1989
- Fax/data call receiving system and method66US 5,065,427 A1991
- Facsimile apparatus with automatic answering telephone function, and communication method in said apparatus55US 5,544,234 ACanon Kabushiki Kaisha · 1996
- Terminal switching control apparatus53US 4,868,865 AKabushiki Kaisha Toshiba · 1989