H04N 21/43607
Interfacing a plurality of external cards
Official title: {Interfacing a plurality of external cards, e.g. through a DVB Common Interface [DVB-CI]}
H04N21/43607 (Interfacing a plurality of external cards) appears on 140 US grants and 173 published applications in this corpus.
Search patents in H04N- Granted patents
- 140
- Published applications
- 173
- Assignees
- 68
- Inventors
- 209
- Latest grant
- 18 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 2 |
| 2002 | 2 | 10 |
| 2003 | 1 | 13 |
| 2004 | 1 | 17 |
| 2005 | 2 | 8 |
| 2006 | 10 | 18 |
| 2007 | 11 | 14 |
| 2008 | 9 | 11 |
| 2009 | 5 | 14 |
| 2010 | 23 | 10 |
| 2011 | 11 | 8 |
| 2012 | 9 | 7 |
| 2013 | 9 | 7 |
| 2014 | 8 | 9 |
| 2015 | 9 | 12 |
| 2016 | 4 | 3 |
| 2017 | 3 | 3 |
| 2018 | 3 | 3 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Video signal processing device, video signal processing method, recording medium, and signal processing circuit18 Jun 2024US 12,015,822 B2Panasonic Intellectual Property Management Co., Ltd.
- Method and device to transfer a video stream between a host device and an electronic descrambling device21 Mar 2023US 11,611,791 B2Nagravision S. A.
- Video device and control method for video device12 Jul 2022US 11,388,369 B2Sharp NEC Display Solutions, Ltd.
- Strong authentication of client set-top boxes6 Apr 2021US 10,970,367 B2DISH Technologies L. L. C.
- Method and device to transfer a video stream between a host device and an electronic descrambling device23 Feb 2021US 10,931,997 B2Nagravision S. A.
- Video signal processing device, video signal processing method, recording medium, and signal processing circuit23 Mar 2023US 2023/0090807 A1Panasonic Intellectual Property Management Co., Ltd.
- Method and device to transfer a video stream between a host device and an electronic descrambling device6 May 2021US 2021/0136438 A1Nagravision S. A.
- Video device and control method for video device19 Nov 2020US 2020/0366866 A1NEC Display Solutions, Ltd.
- Strong authentication of client set-top boxes22 Aug 2019US 2019/0258779 A1DISH Technologies L. L. C.
- Method and device to transfer a video stream between a host device and an electronic descrambling device30 Aug 2018US 2018/0249198 A1Nagravision S. A.
Most cited
By later US patents
- Method and apparatus for an adapter card providing conditional access in a communication system201US 5,652,795 AHughes Electronics Corporation · 1997
- Content distribution for multiple digital rights management176US 7,120,250 B2Sony Corporation · 2006
- Selective encryption to enable multiple decryption keys168US 7,233,669 B2Sony Corporation · 2007
- Elementary stream partial encryption165US 7,124,303 B2Sony Corporation · 2006
- Method and apparatus for distributed conditional access control on a serial communication network153US 6,154,206 ASony Corporation of Japan · 2000