H04N 1/32789
Details of handshaking
Official title: {Details of handshaking (H04N1/32793, H04N1/32795 and H04N1/32797 take precedence)}
H04N1/32789 (Details of handshaking) appears on 162 US grants and 141 published applications in this corpus.
Search patents in H04N- Granted patents
- 162
- Published applications
- 141
- Assignees
- 75
- Inventors
- 263
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 9 | 8 |
| 2003 | 5 | 7 |
| 2004 | 2 | 7 |
| 2005 | 7 | 7 |
| 2006 | 1 | 8 |
| 2007 | 6 | 7 |
| 2008 | 3 | 6 |
| 2009 | 6 | 9 |
| 2010 | 6 | 10 |
| 2011 | 5 | 10 |
| 2012 | 6 | 5 |
| 2013 | 13 | 3 |
| 2014 | 11 | 5 |
| 2015 | 9 | 10 |
| 2016 | 8 | 4 |
| 2017 | 5 | 7 |
| 2018 | 5 | 6 |
| 2019 | 5 | 3 |
| 2020 | 5 | 5 |
| 2021 | 3 | 1 |
| 2022 | 1 | 3 |
| 2023 | 4 | 5 |
| 2024 | 2 | 3 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image forming apparatus is performing wireless communication in two modes and receiving trigger frame from access point, method, and non-transitory computer readable storage medium28 Oct 2025US 12,455,708 B2Canon Kabushiki Kaisha
- Image forming apparatus for determining a communication channel to be used in a wireless communication20 May 2025US 12,307,148 B2Canon Kabushiki Kaisha
- System and method for sending, delivery and receiving of faxes, including delivery of faxes with adaptive protocol selection28 Jan 2025US 12,212,727 B2Open Text Holdings, Inc.
- Image forming apparatus enables first wireless communication mode via access point and second wireless communication mode not via access point and to further receive trigger frame via the access point, method, and non-transitory computer-readable storage medium11 Jun 2024US 12,008,275 B2Canon Kabushiki Kaisha
- Medium processing apparatus that includes notification unit, and method for controlling medium processing apparatus that includes notification unit2 Apr 2024US 11,949,829 B2Seiko Epson Corporation
- Image forming apparatus, method, and medium29 Jan 2026US 2026/0029972 A1Canon Kabushiki Kaisha
- Image forming apparatus, method, and medium29 Aug 2024US 2024/0289071 A1Canon Kabushiki Kaisha
- Image forming apparatus14 Mar 2024US 2024/0086132 A1Canon Kabushiki Kaisha
- System and method for sending, delivery and receiving of faxes, including delivery of faxes with adaptive protocol selection8 Feb 2024US 2024/0048664 A1Open Text Holdings, Inc.
- Defined interface between the Print Unit and Print Array Host to enable a Production Network12 Oct 2023US 2023/0328189 A1Industry Supplies, Inc.
Most cited
By later US patents
- Network communication apparatus and method for performing a T.38 communication function using a voice capability of a gateway apparatus223US 7,701,931 B2Ricoh Company, Ltd. · 2010
- Dynamic facsimile transcoding in a unified messaging platform221US 8,711,857 B2AT&T Intellectual Property I, L. P. · 2014
- Still picture picturephone communications system68US 4,943,994 ALuma Telecom, Inc. · 1990
- Method and apparatus for image transmission37US 4,719,514 ACanon Kabushiki Kaisha · 1988
- System and method for transmitting image data on a telephone network or equivalent37US 4,939,767 ASanyo Electric Co., Ltd. · 1990