H04N 1/32715
Detecting
Official title: {Detecting}
H04N1/32715 (Detecting) appears on 336 US grants and 133 published applications in this corpus.
Search patents in H04N- Granted patents
- 336
- Published applications
- 133
- Assignees
- 99
- Inventors
- 453
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 10 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 16 | 0 |
| 1994 | 23 | 0 |
| 1995 | 14 | 0 |
| 1996 | 23 | 0 |
| 1997 | 19 | 0 |
| 1998 | 23 | 0 |
| 1999 | 24 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 3 |
| 2002 | 6 | 3 |
| 2003 | 4 | 9 |
| 2004 | 3 | 5 |
| 2005 | 3 | 11 |
| 2006 | 11 | 12 |
| 2007 | 4 | 6 |
| 2008 | 3 | 7 |
| 2009 | 5 | 6 |
| 2010 | 7 | 9 |
| 2011 | 8 | 7 |
| 2012 | 6 | 7 |
| 2013 | 11 | 3 |
| 2014 | 7 | 7 |
| 2015 | 10 | 7 |
| 2016 | 5 | 4 |
| 2017 | 12 | 10 |
| 2018 | 4 | 4 |
| 2019 | 6 | 3 |
| 2020 | 5 | 5 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04N 1/32728An off-hook condition150
- H04N 1/32719A facsimile calling signal145
- H04N 1/32717A calling tone117
- H04N 1/32726Signals other than facsimile protocol signals100
- H04N 1/32732Within a predetermined time92
- H04N 1/32723Speech signals56
- H04N 1/32721Facsimile protocol signals49
- H04N 1/3273A loop current23
Recent patents
- Control apparatus, non-transitory computer readable medium, and printer27 Jan 2026US 12,535,975 B2FUJIFILM Business Innovation Corp.
- Method and system for distributing and receiving fax transmissions via a data connection that is owned by a service provider27 Jun 2023US 11,689,681 B2Consensus Cloud Solutions, LLC
- Information processing apparatus, information processing system, and information processing method configured to perform setting a state of a document to already read or unread based on the printing of pages of an accumulated document in storage23 May 2023US 11,659,127 B2Ricoh Company, Ltd.
- Information processing apparatus with a simulation mode and non-transitory computer readable medium storing program24 May 2022US 11,343,404 B2FUJIFILM Business Innovation Corp.
- Image forming apparatus, state control method, and non-transitory computer-readable storage medium24 Aug 2021US 11,102,373 B2Ricoh Company, Ltd.
- Facsimile apparatus25 Sep 2025US 2025/0301082 A1FUJIFILM Business Innovation Corp.
- Facsimile apparatus11 Sep 2025US 2025/0286960 A1Sharp Kabushiki Kaisha
- Control apparatus, non-transitory computer readable medium, and printer7 Mar 2024US 2024/0078063 A1FUJIFILM Business Innovation Corp.
- Method and system for distributing and receiving fax transmissions via a data connection that is owned by a service provider16 Mar 2023US 2023/0083081 A1J2 Cloud Services, LLC
- Information processing apparatus, information processing system, and information processing method3 Jun 2021US 2021/0168262 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Voice/facsimile/modem call discrimination method for voice over packet networks232US 7,126,711 B2Texas Instruments Incorporated · 2006
- Communication system for transmitting to a portable receiver data indicative of received image or voice signals154US 5,159,624 ASharp Kabushiki Kaisha · 1992
- Telephone message center137US 5,623,537 ALucent Technologies Inc. · 1997
- Communication apparatus recognizing speech and automatically switching from data to speech transmission127US 4,815,121 ACanon Kabushiki Kaisha · 1989
- Telephone circuit to control off-hook status during receipt of caller-ID signal96US 5,377,260 ASierra Semiconductor Corporation · 1994